INSTALLATION, INSTALLATION, OPERATION & MAINTENA M AINTENANCE NCE MANUAL MODULAR AIR HANDLING UNIT CABINET FAN COIL UNIT
Please read this instruction thoroughly before using your units. un its. Properly keep it. The above figures are for reference only. only. Please refer to the object.
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DDM1401-A1 Part No.: M08019001007
Contents 1
.................................................. .................................. .................................. .................................. .................................3 ................3 Safety Precautions .................................
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User Instructions ................................. .................................................. .................................. .................................. ................................... ................................... ................... 6
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General ................................ ................................................. .................................. .................................. .................................. ................................... ................................... ................... 7 ...................................................................................................... .......................................... ....... 7 3.1. Modular Air Handling Unit................................................................... ........................................................................................................ ................................................ ............. 7 3.2. Cabinet Fan Coil Unit.....................................................................
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.................................................... .................................. .................................. .................................. .................................. ...........................9 ..........9 Installation ................................... ..................................................................................................... ....................................................................... ..................................... 9 4.1. Shipment................................................................. ...................................................................................................... .................................................................. ............................... 9 4.2. Acceptance ................................................................... ....................................................................................................... ....................................................................... ...................................... 9 4.3. Rigging.................................................................... ....................................................................................................... ....................................................................... ...................................... 9 4.4. Storage .................................................................... ...................................................................................................... .......................................... ....... 9 4.5. Assembly and Installation Installation...................................................................
4.6. Onsite Installation .................................................................... ....................................................................................................... .................................................... ................. 10 ...................................................................................................... .................................................... ................. 12 4.7. Ceiling Installation ................................................................... ...................................................................... ...................................................................... .......................................................... ....................... 13 4.8. Panel Holing* ................................... ................................................................................... ................. 13 4.9. Pipeline Connection and Usage of Coils..................................................................
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................................................... .................................. .................................. .................................. ...............................15 ..............15 Wiring Connection.................................. 5.1. Lighting Connection*..................................................................... ........................................................................................................ .............................................. ........... 15 ........................................................................................................ .......................................................... ....................... 15 5.2. Motor Cabling ..................................................................... ..................................................................................................... .............................................. ........... 15 5.3. Motor Line Connection.................................................................. .................................................................................................. .............................17 17 5.4. Electrical Heating Connection* ..................................................................... ........................................................................................................ ........................................ ..... 18 5.5. Other Connection Lines*.....................................................................
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................................................. .................................. .................................. ............................19 ...........19 Debugging and Commissioning ................................ ....................................................................................................... ................................................................ .............................19 19 6.1. Debugging .................................................................... ..................................................................................................... .......................................................... ....................... 19 6.2. Commissioning ..................................................................
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.................................................... .................................. .................................. .................................. ......................... ........20 20 Regular Maintenance ................................... ...................................................................................................... ................................................................ .............................20 20 7.1. Mixing Box*................................................................... ........................................................................................................ .......................................................... ....................... 20 7.2. Filter Section* ..................................................................... ..................................................................................................... ................................................................ .............................20 20 7.3. Coil Section .................................................................. ....................................................................................................... .......................................................... ....................... 21 7.4. Fan and Motor .................................................................... ...................................................................... ...................................................................... .................................................... ................. 23 7.5. Silencer Section*................................... ......................................................................................................... ........................................ ..... 23 7.6. Electric Heater Section* ...................................................................... ...................................................................................................... .................................................... ................. 23 7.7. Checking Section* ................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................23 23 7.8. Others...................................
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................................................... .................................. ............................24 ...........24 Maintenance Plan of Units (Recommend)..................................
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Trouble-shooting ................................. .................................................. .................................. .................................. ................................... ..................................25 ................25
................................................... .................................. .................................. ...............................27 ..............27 10 After-sales Service Warranty .................................. 10.1.
...................................................................................................... .............................................. ........... 27 After-sales Service ...................................................................
10.2.
..................................................................................................... ................................................................ .............................27 27 Warranty ..................................................................
................................................... .................................. .................................. ......................... ........28 28 11 Repair and Maintenance Record .................................. ................................................... .................................. ................... .. 29 Appendix 1: Dimensions For DDW Frameless Unit ..................................
Appendix 2: Dimensions For DDW Frame Unit ................................ ................................................. .................................. ............................31 ...........31 Appendix 3: Dimensions For FUW-H/V Unit .................................. ................................................... .................................. ...............................33 ..............33 .................................................. ................................... .................................. ................... .. 35 Appendix 4: Dimensions For FUW-A Unit ................................
Bulletin illustration covers the general appearance of our products at the time of publication and we reserve the right to make change in design and construction any time without notice.
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1 Safety Precautions Please read this instruction Warning: Incorrect operations may cause death or serious accidents. Caution: Measures need to be followed to avoid unit damages and personal injuries. Indicate important instructions that must be followed. Indicate actions strictly prohibited.
Installation Preparations and Precautions for Use To ensure optimum performance of the unit, follow the instructions below during operations. If any specification is not met, take feasible measures to solve the issue before power-on.
WARNING
Installation Installation and maintenance maintenance should be performed only by professionals that are entrusted by the supplier.
The accessory can be installed by professionals that are entrusted. Select the optional components designed by manufacturer. Improper selection may cause electric chock, fire, or other accidents.
Electrical part must be moisture proof. Otherwise, it may cause electrical shock, fire, or other accidents.
Dedicated line should be installed by professionals in electrical installation. Electrical installation must abide by local regulations. Improper use of power cord may cause electric leakage or fire.
The design of water pipe and air pipe must abide by local regulations.
The highest operating temperature for the unit is 60 C. Too high ambient temperature or internal temperature may damage the unit.
Installation and maintenance are to be performed only by trained and qualified personnels.
Ensure the installation follows the instructions on this manual. Improper installation may cause unit damage, casualties, electric shock, fire, or other accidents.
Installation Installation and construction of the units must abide by local regulations. Anti-wind, anti-shock and other preventive measures must be taken as regulated.
Otherwise, it may cause dumping or falling accidents.
Increase equipment for rain and snow when the unit is installed outdoors;
The unit installation base `must be supportable supportable enough. The unit must be installed on solid grounds to prevent from falling of the unit or injuries caused by insufficient strength.
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CAUTION
PRECAUTIONS
BEFORE
INSTALLING
The cold/warm water used by the unit must meet the standard. Using unqualified water may affect the life and performance of the unit. In severe case, it may cause leakage. The requirement of water quality refers to Chapter 4.
Do not use lubricating oil or anti-freezing solution of wrong types and version. Otherwise, it may cause damage to the unit.
Configure the residual current circuit breaker correctly. Install the residual current circuit breaker in accordance with electrical regulations. Error installation may cause electric shock or other accidents.
Do not install the unit in terrible environment. Do not install the unit near the exhaust outlet of a toilet, or a hospital operating room, or near the processing facilities of sewers, because filth, oil stain, salinity or large amount of sulfurized gas may cause the corrosion of the components. Do not install the unit in a place where combustible gas leakage may happens. If the gas leaks and gathers around the unit, there is a risk of explosion and fire accidents. If the unit is installed near the hospital, telecommunication station or other similar places, take proper measures to safeguard the unit. Frequency transformer transfo rmer,, house generator, high frequency medical equipment and radio communication device may cause the air-conditioner to run abnormally or quit working.
Avoid Avoid tightening the power wire. Otherwise, heat is generated due to cable fracture, thereby causing fire or other accidents.
Pay attention to product transportation. transportation. If the weight of the product is over 20kg, transportation needs to be finished by specific machine rather than one person.
Correctly earthing of the unit. Earthing wires can not be connected to gas pipes, water pipes, lightening conductor and telephone lines. Error earthing may cause electric shock.
The power supply voltage does not exceed rated voltage by ±10%, and the frequency does not exceed rated frequency by ±1%.
Power cable must be separate separate from solder transformer which may cause wide voltage range.
Safety guarantee Construction personnel must be well-educated for three-level safety knowledge, wear safety helmets on site, fasten the safety belt when working at heights (2m or above), and wear protective shoes. Be careful when using electric tools. Only electricians can connect and disconnect cables or use the power distribution cabinet. Coating operator must wear protective equipment and ensure ventilation on site.Open flame is prohibited at the construction site. Civilized construction is required. Do not dispose construction materials and wastes at discretion.
Fan and motor must be equipped with overload protection. Otherwise, it may cause fire or other accidents.
Do not touch the sharp plate and heat exchange edges.
Ensure the drainage is smooth. Improper drainage may cause poor drainage so as to dampen the device.
Civilized construction Stack materials in specified positions on site and take proper measures to protect the materials from moisture, rain, and snow if they are stacked open. During simultaneous operations in the same room, all construction operators must respect each other and work properly and cooperatively. Establish a civilized construction system. The construction team leader is responsible for civilized construction in the working area.
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CAUTION
IINSTALLATION AND PRECAUTION
Do not use power switch to start or stop the operation of unit directly. Such error operation may cause electric shock or fire accident.
Do not change the set value of the safety protector. Otherwise, it may cause fire accident or explosion.
Do not use fuse beyond the normal capacity. Replacing the fuse with wire may endanger the device or cause fire accident.
Do not short-circuit the security device to start the unit. This may cause damage to the unit or fire and explosion accident.
Do not use other functions of the unit beyond its scope of design. The unit is not applicable to preserve foods, plants and animals, precision instruments and artworks. Otherwise, the quality of these may be undermined.
Do not dismantle the components and change the connection lines at will. If necessary, please contact the seller.
Do not use a damp hand to operate the unit. Otherwise it will cause electric shock.
Stop the unit and cut off the power before maintenance. maintenance. After shutdown, the blades may still turn for one to three minutes. Do not force the blades to stop by hands or other objects. Proceed with the maintenance work after the blades stop completely. The unit can be installed and maintained only by professionals. Otherwise, it may cause electric shock, accidental injuries and other accidents.
Empty the remaining water inside the unit when it stops working for a long time. When the unit is not operating, ensure that the water pipe is full of antifreeze or empty the remaining water inside the pipe. Otherwise, the coil may be cracked to leak water due to frost.
Do not place and hang any object above the unit. Object dumping or falling may cause accidental injuries.
Do not touch working components components of the unit. Otherwise, accidents may occur.
Do not touch high-temperature components such as the steam coil and electric heating. Otherwise it may cause burning.
When the unit runs abnormally, cut off the power immediately and contact contact the seller.
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2 User Instructions Rights and Obligations To ensure the warranty service, only the service personnel of our company or experienced technical personnel is capable of the installation and maintenance work. We are not liable for any property loss or casualties as result of violation.
Check All units should be carefully inspected for damage when received and check whether all the components are complete. Damage or loss of parts in shipment should be reported to the dealer in written form as soon as possible.
Notice for Use Clean the water system regularly. In winter when the ambient temperature is below 0 C, take anti-freezing measures. °
Particularly, external pump must be connected to the communications of the unit. Otherwise, the coil may be frozen to damage due to water shortage. Do not put objects near the air inlet or outlet, for which may undermine the unit performance or cause unit shutdown.
Precautions Precautions in chapter one are of great importance to follow. These precautions should be at hand for reference at any time.
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3 General This manual has been prepared as a guard for installing, operating and maintaining the modular air handling unit and cabinet fan coil unit of our company. We have produced a quality product that will effectively meet your application. However, proper installation, operation, and maintenance procedures must be followed to realize the full capability and life of the unit.
3.1. Modular Air Air Handling Unit DDM 06 07- C2 - H122310 Model name
Serial number
Width modular
Name of the series
Height modular Model name:
DDM
Height modular:
03, 04, 05
Width modular:
04, 05, 06 …
Name of the series:
C2- 25mm panel series;
C3- 30mm panel series;
XE- 50mm panel series;
E5- 50mm panel series
Serial number:
C5- 50mm panel series
Factory internal identification code
3.2. Cabinet Fan Coil Unit DDW 080 H R 15 - 4 L-F F B E Model name
Export label
Air flow code
Design version number
Structure type
Air outlet direction
Air Inlet condition
Power mode
External total pressure
Pipeline connection
Coil rows Model name:
DDW (Double-skin);
FUW (Single-skin)
Air flow code:
020, 030, 040, 050, 060, 080, 150,180, 200,… 080-air flow is 8000CMH,
Structure type:
H: Horizontal;
V: Vertical
Air inlet condition:
R: Return air unit;
F: Fresh air unit
External total pressure:
08, 15, 22, 30,… 08-80Pa, 15-150 Pa, 22-220 Pa, 30-300 Pa;
Coil rows:
4: 4 rows;
6: 6 rows
Pipe connection:
L: Left-oriented;
Power supply form:
F: 380V/3N ~ /50Hz
Air outlet direction:
T: Top air outlet (horizontal unit is Tl and vertical unit is T outlet);
R: Right-oriented
F: Horizontal air outlet (FI outlet)
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FUW 020 A - 4 L- A A A E
Model name
Export label
Air flow code
Design version number
Structure type Coil rows
Model name: Air flow code: Structure type: Coil rows: Pipe connection: Power supply form: Export Expor t label: label :
Power mode Pipe connection type
FUW (Ultra-thin ceiling unit) 015, 020, 025, 030, 035, 040,050 020-air flow is 2000CMH, A 4: 4 rows; 6: 6 rows L: Left-oriented; R: Right-oriented A: 220V/50Hz K: 220V/60Hz E: Standard export unit U: Export unit configure with 60 threaded pipes skip the domestic sold unit °
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4 Installation 4.1. Shipment The units can be delivered as separate section or completely assembled (ASS). For modular air handling unit, complete knock down shipment (CKD) is needed if the unit is big in size or there is special requirement from customers.
4.2. Acceptance Check if the sections, accessories and panels are intact in accordance with packing list before installation. If there is damage or loss in shipment, please inform the seller in written form as soon as possible.
4.3. Rigging To prevent damage to unit cabinet, a specific lifting method for offloading the units is recommended as shown in figure 1. A rod and ropes capable of bearing the weight during hoisting are required. The spreader bars must be in position to prevent straps or cables from rubbing the frame panel. Ensure stability and balance when lifting the units and avoid twisting or uneven lifting. Care should be taken to prevent coil connections, drain pan connection and accessory section from damage. It is proposed to handle the unit by forklift when it is on flat ground (Figure 2). The forks must only be applied under the unit base frame or wooden frame and not against the panel. In case when fork of the forklift is too short then suitable extensions should be used.
Figure 1
Figure 2
4.4. Storage For external storage prior to installation, the units should be more protected by tarpaulins or similar and to be protected from dust, rain, snow, constant sun exposure and rodents. Take care of the protection film on the surface. Do not stack the unit.
4.5. Assembly and Installation a. Adjust the base level. Uneven base may lead poor drainage of the condensate water and cause leakage, or damage the dynamic balance of the fan and cause breakdown and vibration of the bearing. When the unit is shut down during winter, residue water inside the coil may cause frost cracking. Therefore, the base must be placed horizontally and have enough strength. b.
Usually, Usually, the operating weight of the unit is more than 120% of the unit weight.
c.
For unit installed on the ground, make sure the base and floor have enough strength. To To reduce the the vibration of the unit, it is suggested to place a damping rubber cushion under the base. The factory can select a damping cushion for the entire unit.
d.
The base of the unit can be made from concrete placement placement or channel channel steel welding. welding. Ensure that the surface of the steel is straight during welding. The height of the concrete base should be at least 150 mm,
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reserve trenches and floor drains around the base to ensure condense water discharge. e.
Drain pipes and traps must be at least same diameter as the drain pan pan connection. Drain pan must be level to permit condensation from coil drain freely. See figure 3 for the recommended depth and distance of drain trap installation. Drain pan are not designed to be walked on.
Negative Pressure Trap
Positive Pressure Trap
H ≥ Maximum negative pressure/9.8+20mm (1mmH2O=9.8Pa) Figure 3
4.6. Onsite Installation The unit can be installed onsite only by professionals that are familiar with the unit and are specially trained. Pay attention to the following: a. Unit should be assembled in according according with the drawing drawing provided provided by factory exactly. exactly. b. Installation and operation of the unit must abide by local codes and regulations.
c.
Check whether the accessories and wooden case are in accordance with the packing list. Fix the accessories (air valve, flange and weather proof) onto the unit.
d.
Clear the impurities when when you do installation and use compressed air or brush to clear up dust and correct deformed fins.
e.
Adequate space should be left around the unit for coils & drainage piping, filter replacement, and maintenance. (Figure 4 shows the reserved space of modular air handling unit; Figure 5 shows the reserved space of cabinet fan coil unit.) m m 0 0 1 + W = >
W
>=600mm m m 0 0 1 + W = >
Figure 4
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5 0 0
5 0 0
0 5 0
0 0 1 0
0 5 0
1 0 0 0
Figure 5 f.
The design design of air duct should abide by local codes and regulations.
g. Ensure that the length of straight duct is at least twice the length of the air outlet. outlet. Otherwise, it may cause pressure drop. h. The unit should not bear the weight of external pipelines and air ducts. i.
Thermal insulation must be achieved for air ducts.
j.
Flexible connection between the unit and external air ducts can avoid vibration. Ensure that the j oint is sealed and treated with proper insulation to prevent condensation on the unit surface due to air leak.
k. Install the air filter before unit commissioning. Check whether the filter element of the air filter is damaged or contaminated. l.
Provide weather weather proof and shading devices when the the unit is installed outdoors.
m. The transportation sections of units must be closely linked. Otherwise, it may cause air leakage or condensation. The method of linking between each transportation section is as follows: For DDM-C Series/DDM-XE Series/DDW Vertical Units: a. After install and level the first section in position, position, push the second section close close to the first section after the alignment is correct. Connect the two sections with bolts at the unit base without fastening. (For DDW vertical unit, the channel steel does not need to be connected.) b. Coat the joint of sections with with glass cement. cement. Snap the four PVC strips into the joint of sections. c.
Connect the top of the joint joint of the sections with connection blocks and bolts (Figure (Figure 7).
d. Tighten the bolt connecting the channel steel base and the connection blocks. Fix the PVC strips with with screws and cover the hole.
Figure 6
Figure 7
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For DDM-E Series Units: a.
After install install and level the first section in position, position, push the second section close to the first section after the alignment is correct.
b. Connect the channel steel bases of the two sections with bolts, and tighten the bolts (Figure 6). c. Snap the four connection strips into the joint of sections, and fix them with ST4.8*16 screws. screws. d. Install the cover plate attached with sealing strip to the joint joint of sections, and fix it with with ST5.5*25 screw (Figure 8).
Figure 8
4.7. Ceiling Installation Assemble the unit before ceiling operation. Ensure that the components are installed and the sections are properly connected. The unit should be placed on an integrated channel steel for hoisting, or the unit performance may be undermined by the inconsistent installation heights. Roof hoisting is prohibited since the roof cannot bear the weight of the unit. Ensure that the construction components for ceiling, the integrated channel steel and hoisting rod have enough strength to meet the standard of operation weight. Determine the position of the hoisting rod and adjust the fixed screw to keep the unit balanced. Add a bumper on top to reduce vibrations (Figure 9). A spring bumper is recommended.
Figure 9
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4.8. Panel Holing* The holing of onsite electric and control wiring follows the steps below: a. Determine the number and location of holes required for electrical conduit, piping, and control wiring. Mark them with black oil pen. Do not open holes on the access panel. b. Once a proper location is determined, drill a small pilot hole completely through the panel. Then use a sharp hole saw or a saber saw and cut from each side of the panel. c. Seal the double-wall panel panel on each side with with an industrial/commercial grade silicone sealant or duct seal compound. It is extremely important to seal each panel hole or penetration securely so it is airtight, watertight, and so that there is no exposed insulation.
Figure 10 *For FUW units, there is no need for extra holes as electric wiring is led to the terminal block.
4.9. Pipeline Connection and Usage of Coils a. The installation of water system system pipes should should abide by local laws and regulations. b. In order to optimize performance performance and save installation cost, designer should manage to reduce bending and replacement during design stage. The pipeline system must be treated with proper insulation. Wash the pipes after being installed. Ensure the valves connecting units are closed during washing to prevent the sundries in the pipe from being flushed into the coil and block the passage. c. Pipes connecting to the coil should in according with with the stickers. (Cooling coil is in bottom-up direction, direction, while steam coil is in top-down direction) to avoid wrong connection. d. Do not change the orientation of pipeline connection. e. To avoid damaging the coil connections at coil header, it is essential to hold the hexagonal connector with tools whilst applying counter force to tighten the joint. (Figure 11).
Figure 11
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f.
Install a steam trap at the outlet of steam coil coil to ensure ensure smooth drainage drainage if a steam coil is used. The installation of steam pipe must abide by local laws and regulations to ensure that the saturated steam enters the steam coil which prevents the coil from water hammer.
g. Allow the linkage linkage between inlet water and fan to avoid the the coil under-cooling or overheating. The coil operates only when the fan runs. h. The designed operation pressure of of the coil is 1.6 MPa. Too high pressure will will damage the coil. i.
During commission or out running of the unit in the winter, discharge the remaining water water in the coil (system) (system) timely or adopt other methods (for example, add anti-freezing solution) to prevent the coil from crack in low temperature (for details, refer to the maintenance and preservation of the coil).
Warning: Improper commissioning and maintenance may cause coil crack in low temperature. j.
If the ambient temperature or air inlet temperature is equal to or lower than 2 C, install preheating device °
at the air inlet of a fresh air handling unit. In addition, a sealed regulating valve needs to be installed at the new air inlet. Install anti-freezing switch beside the coil and interlock it to the sealed regulating valve and the fan. When the unit starts, start the preheating coil or take other measures beforehand to prevent the coil from cracking in low temperature. And when the unit is running, constantly provide the coil with warm water with a temperature of no less than 60 C and ensure that the water flow speed inside the coil °
is no less than 1 m/s. k. Water quality requirements: Water softening treatment treatment must be given in advance to prevent scaling in the the heat exchanger which may affect heat exchange effect. Moreover, water without softening treatment may form scale in the pipe to increase water resistance which will affect water flow and pump work efficiency. Reference value
Item pH(25℃) Benchmark items
＜800
－
mg(Cl-)/L
＜200
SO42-
mg(SO42-)/L
＜200
Acid consumption (pH=4.8)
mg(CaCO3)/L
＜100
Full hardness
mg(CaCO3)/L
＜200
mg(Fe)/L
＜1.0
Cl
Fe Reference items
2-
S
Corrosion
Scaling
○ ○ ○ ○
○ ○
7.5～9.0
µS/cm
Conductivity (25℃)
Tendency
2-
mg(S )/L
0
NH4+
mg(NH4+)/L
＜1.0
SiO2
mg(SiO2)/L
＜50
Note: ○ refers to that this factor is related to the tendency of corrosion or scaling
○ ○ ○
○ ○ ○
○
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5 Wiring Connection Electric connecting should be compliant with relevant local laws and regulations. Besides, pay attention to the following: a. Before connecting, check whether the power supply meets the requirement of of the voltage voltage value stipulated on the of unit nameplate; b. Set up an independent electrical power supply, supply, power off and overload protection device for each unit. c. The voltage difference between any two-phrases of power supply should be smaller than 2% of the nominal voltage.
5.1. Lighting Connection* We provide 36V/24V light for modular air handling units. Ensure that correct power supply voltage is used during connecting (see Figure 15). Transformers are optional by user. *Apply to modular air handling units only.
Figure 15
5.2. Motor Cabling Motor wiring must go down along the enclosure and must be fixed by the cable clips, it is prohibited to go upwards or oblique and prevent condensation water flowing into motor and lead to a failure. The leading-out hole of the motor connection box must be sealed.
Correct connection
Wrong connection Figure 12
Wrong connection
5.3. Motor Line Connection The line connection method of motor varies with local power supply. Please refer to the motor nameplate. In the following figure, 380V/3N~/50Hz model is taken as an example to show the connection method:
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MOTOR POWER≤3kW
3kW＜MOTOR POWER＜11kW
MOTOR POWER≥11kW
Figure 13 The following figure is the schematic diagram of motor line connection of FUW series unit. Contact the factory if the local power supply is not consistent with that shown in the diagram.
Figure 14
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5.4. Electrical Heating Connection* *Electrical heating section is available to only modular air handling units. Before leaving factory, internal lines of electrical heater have already been connected and an inlet for power cable connection has been left. Connect lines in strict accordance with electrical schematic diagram indicated on the device label. Do not change the connection at will.
Warning: Change the connect wires without permission may cause fire, casualties, or other major accidents. In such cases, customers shall liable for the consequences. When the factory does not configure the control cabinet, on-site cable distribution must be performed in accordance with the instructions shown in Figure 16. Connection methods of electrical heater may be different due to the varied local power supplies in different regions. Refer to the circuit diagram in the connection box of the electrical heating section of the unit. The following figure takes the 380V/3N~/50Hz model as an example:
L1
L1 L2 L3 N PE
power supply L2 380V/3N~/50Hz L3 N PE
customer must configure another contactor
Q1
Q2
Qn
KM1
KM2
KMn
power supply
TB1 B
A A
TB3
TB2
B
L
R S T N
N
L
R S T N
N
KM1
DPS KMI 1
TBn R S T N
KM2
KM2
KMn
KMn
5
KM1 F1
F2
2
4
TH1
TH2
3
group 1
Description：
F1/F2: Fuse； TB1～TBn : Terminal Block； Q1~Qn: Breaker
group 2
group n
TH1/TH2: Temperature Control Switch KM1～KMn: Contactor DPS: Differential Pressure Switch；
Figure 16 a. For each group of electric heater, third-party control cabinet must be configured with with another contactor, cannot share the same contactor which is factory equipped. b. L, N port on the terminal board TB1 must be supplied with independent 220V single-phase power. c. Electrical heating high temperature protection and non-wind protection port A and B must be connected in serial to the control loop of electrical heater. d. Enable the fan before enable the electrical heater. After the fan starts and a certain air flow is reached, pressure difference switch will close, L and N power supply loops are connected. The contactor configured in the electrical heater connection box is connected simultaneously, and the electrical heater is allowed to operate. However, whether the electrical heater can be powered on and starts to operate is
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determined by the connection of the contactor in the customer’s control cabinet (the connection of customer-configured connector is determined by the requirement of hot load capacity and electrical heating protection A and B loops); e. Fuse F1 and temperature control switch TH1 are installed on the top of electrical heating zone. Fuse F2 and temperature control switch TH2 are installed near the inlet of fan section. When the fan is running, the electrical heating is powered down if the protection switches A and B are disconnected. In this case, Users must check the equipment to ensure that no failure occurs before the electrical heater is started again. f.
If the fan goes down and the electrical heater heater is not closed, the trebling protection of DPS. F1 and TH1 will cut L and N power supply loops, and disable electrical heating;
g. If the fan runs in in an over-low frequency and the air flow reduces but does not reach the set point of differential pressure switch, the air supply temperature increases until it reaches the set point of F2 or TH2. Then, F2 and TH2 protection will cut down L and N power supply loops and disable electrical heating.
Warning: Electrical heating high-temperature protect and no flow protect switches should be connected to the control circuit in series. It can not be short circuit. The heating can be turned on only when the fan is work and the fan can only stop after 3 minutes since the heating off.
5.5. Other Connection Lines* Wiring of other components such as humidifier refer to the manufacture’s instructions attached. Notes: a. The humidifier must be interlocked with the fan. That is, the humidifier can be enabled only after the fan starts; the fan can be shut down only after the humidifier is disabled; b.
The fan should only be turned on after the damper actuators on and before the actuators off. The damer should be on when the fan running.
*Other sections such as humidifier is available to only modular air handling units.
Warning: All electrics must be safety grounded, and cannot be connected to neutral instead. Incorrect connection can cause severe explosion, fire and personal injuries. A circuit-break device with sufficient capacity must be installed near the inlet power cable. The circuit-break device must support short-circuit protection and earth-fault protection, and the clearance between open contacts must be at least 3 mm.
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6 Debugging and Commissioning 6.1. Debugging a. Detect whether the installation is completed and whether internal sundries are removed; b. For model with spring isolators, temporary transport brackets are fitted to prevent damage during shipment. All transport brackets must be removed after installation and adjust the spring’s height accordingly to ensure the frame is level before commissioning by turn the adjustment nut bolt clockwise or anti-clockwise. Tighten the bolt after completing adjustment. (Figure 17);
Please remove them after installation and before commissioning.
Figure 17 c. Check whether the filter material is damaged or polluted. polluted. Install high efficiency particulate air filter after debugging. User may prepare primary filter for debugging; d. Check the lubrication lubrication of rotatable rotatable parts, whether the fan impeller collides with enclosure; e. Check the tightness tightness of belt (see Figure 20); f.
Check whether the dampers are opened as designed and the locking mechanism mechanism is locked securely;
g. Check whether the water system is clean and out of air. Before supplying water, water, open the vent valve valve first and empty the air in the pipeline until water outputs; h. Avoid coil freezing during the debugging in winter. Constantly supply hot water with an temperature of not lower than 60 C to the unit coil and ensure that the water flow rate in the coil is not slower than 1 m/s. m/s. Drain all water or add anti-freezing solution if the unit is not to be operated after debugging (for details, refer to the maintenance and preservation of the coil). Warning: Improper debugging and maintenance may lead the coil to crack in low temperature. °
i.
Detect whether the motor insulation is qualified. Measure the motor insulation value before using. Note, discharge the wind after measurement immediately to avoid electric shock. If the insulation resistance cannot reach the related standard, dry the wind;
j.
Check the power supply voltage and the circuit connection. Inch the motor before officially launch it to ensure that the turning of the motor and fan is correct (the turning of fan should be consistent with the arrow direction specified on the fan).
6.2. Commissioning The unit can be started after the above checking procedure is completed. Check whether the running current of motor and unit sound is abnormal after the unit starts. Check the air flow, pressure of unit. Adjust the cooling capacity and humidification amount according to different working conditions. Check whether the fan speed exceeds the working speed stipulated on the fan nameplate. The following conditions are not considered abnormal: Noise: Noise is generated due to high speed air flow and the turning of fan and motor. Vibration: High speed turning of fan and motor generates vibration. It is normal that the noise and vibration do not exceed the value specified by relevant standard.
20
7 Regular Maintenance Perform a good maintenance and preservation can reduce fault of running. The maintenance period of components see Chapter 8 (Recommend).
7.1. Mixing Box* a. Check the operation of damper mechanisms and adjust arms and damper blades blades for a proper position. b. Lubrication of bearings and connecting rod regularly c. Clear the damper regularly *Apply to modular air handling units and certain DDW series units only.
7.2. Filter Section* During system start up, filter are likely to become rapidly blocked. Disposable filters and bag filters must be replaced each time when pressure drop reaches the indicated dirty condition by Manometer. Washable filters must be cleaned periodically. The pressure drop indicated dirty is advised as following. Filter Specifications
Suggested Final Resistance (Pa)
G3
100~200
G4
150~250
F5~F6
250~300
F7~F8
300~400
F9~H10
400~450
H11~H13
400~600
*Apply to modular air handling units and certain DDW series units only.
7.3. Coil Section Periodic cleaning of coils is required. Clear the coil deposit regularly with low-pressure water hose or low-pressure air. Dry cleaning is done by using a powerful vacuum cleaner on the dust-accumulated side. Dirty coils have tendency to increase airside pressure drops and reduce cooling/heating efficiency. Ensure coil fins are not damage when performing dry/wet cleaning. Check that drain pan and drain trap are free from blockage and water accumulation at pan. Inspect and clean condensate pan to avoiding clogging of drainage of dirt, dust, etc. Inspect drainage piping to ensure the proper condensate flow. If humidifier is installed, check for build up of mineral deposits. Check that frost protection is working before starting of each winter season.
Anti-freezing of Coil The daily operation cannot discharge the water from coil totally. Anti-freezing of coil consists of drying coil and washing coil with anti-freezing solution. The steps of drying coil are as follows: a. Shut off the water supply. Drain the coil, using vent and drain valves. This step requires opening of the header vent and removing the plug. b. Connect the blower to the return header of coil. Close vent and drain valve; c. Operate the blower for at least one-half hour and then check coil for dryness. This check may be made by
21
holding a mirror in front of the discharge from the coil. If water is still being removed, the mirror will become fogged. Continue to operate the blower until the coil is dry. d. Bump or jar the coil slightly during the blowing operation, operation , if possible. This will free any water, that may be trapped and may also dislodge any dirt or scale which can trap water in the coil. Take care not to damage the coil. e. Allow the coil to stand for a few minutes after it is first blown out to give the moisture that adhered to the walls of the tube a chance to accumulate. Blow it out again and if any water comes out, repeat the blowing operation. f.
Leave drains open and all plugs out until the coil is returned to service.
The steps of washing coil with anti-freezing solution are as follows: To wash the coil with anti-freezing solution, a centrifugal pump with motor and a running piping holding anti-freezing solution and its container are required. The lowest temperature decides the concentration of anti-freezing solution. a. Shut off the water supply suppl y. Open the vents and drains provided to allow the coils to drain as complete as possible. b. Complete piping connections to the coil as shown in figure 3. Configure a throttling valve to the loop;
Figure 18 c.
With throttling valve and drain valves closed, start the solution pump and operate until air is vented from coil.
d.
Close air vent and open throttling valve about halfway. Circulate solution about 15 minute and then check the glycol solution strength .
e.
If the solution is too weak, add anti-freeze solution to bring it up to desired strength and again circulate through the coil for about 15 minutes.
f.
When the concentration of solution returning returning from the coils is found satisfactory, satisfactory, shut down the pump and drain anti-ffreeze from the coil.
g.
The same solution can be used for flushing additional coils, providing its concentration is maintained.
7.4. Fan and Motor a. Detect and clean to fan regularly to ensure nice running state of fan. b. Inspect for any obstructions or blockages at air intakes and discharges. c. Grease lubrication has been added to fan bearing and motor bearing when leaving factory. factory. Motor bearing is closed and it is not required to add lubrication oil. Fans without bearing pedestal and there is bumper
22
rubber blanket, grease lubrication has been added to bearing and it is not required to add lubrication oil. Fans with bearing pedestal, add lubrication oil through nipple while lubrication oil exceeds the period of validity. validity.
The period of validity depends on grease type, rotate speed and working temperature of bearing.
Regular detect the grease when using. When the grease eliminated is black and thick, which shows the oxidation of grease, change the lubrication oil and shorten the interval of changing. The recommended interval is 1000~2000 h. Note: Use only the lubricating oil with the same brand of the original one. The using of lubricating oil of another brand may cause bearing invalidation. d.
After running for a period of time, check the service condition of absorber. absorber. Determine whether the absorber can meet the shock absorption requirement according to practical running condition.
e. Regularly detect the bearing of fan and motor to to see whether the bearing is loose. Fix the bolt on the bearing firmly. Detect the running condition by monitoring abnormal noises and vibrations. Stop the unit immediately when the abnormality happens. Then, find the cause and solve the problem. Install and replace the bearing with special tools, instead of knocking or prizing it with brute forces. f.
After running for a period of time, recheck recheck the straightness straightness of pulley and the tension of belt. Adjust and replace the pulley or belt in necessity.
g. Check whether the side of V pulleys of the fan and motor are on the same plane. Ensure the straightness of pulleys. Usually, the four-point method can be used to detect and adjust the straightness of pulley. pulley. (see Figure 19)
Figure 19 h. When changing the V belt, use the same brand V belt of the same model and ensure that the ribbon matches the race of pulley. i.
Detect and adjust the tension of V belt with a recognized belt tension gauge. (see Figure 20)
Measuring method: Measure the span Ls (mm) and calculate the bending ∆L: ∆L(mm) = Ls x 0.016. Extrude the tension gauge to bend the belt until the bending reaches ∆L. Then, read the tension gauge value and compare the value with those in the following table. Adjust the belt to a proper tension according to the comparison result.
Figure 20
23
Minimum tension load (unit: kgf/ pc of belt) SPZ/3V New product installation Re-adjustment SPA New product installation Re-adjustment SPB New product installation Re-adjustment SPC New product installation Re-adjustment
63~90 2.1 2.5 90~125 3.3 3.8 140~190 5.5 6.4 224~315 2.6 3.1
Belt diameter (mm) 91~125 126~160 2.6 2.8 3 3.2 Belt diameter (mm) 126~160 161~250 3.9 4.5 4.5 5.2 Belt diameter(mm) 191~236 237~315 6.2 6.9 7.2 8 Belt diameter(mm) 316~400 401~500 3 3.2 3.4 3.7
161~200 2.9 3.4 251~315 4.8 5.5 316~400 7.3 8.5 501~710 3.6 4.2
Notes: V pulley and its wheel are adjusted before leaving factory. check again before operation.; After running for 48 hours, re-adjust the tension of V belt to a proper value; After running for a month, re-adjust the tension of V belt; Interval check should be implemented every 3 months.
Warning: Over tension toward drive belt will cause premature failure of belt and bearing.
7.5. Silencer Section* Regularly detect the silencer. Clean and replace it if damage or corrosion happens. Clean the muffler with a vacuum cleaner. Note: Do not damage the mute cotton in the muffler.
7.6. Electric Heater Section* Regularly detect whether the protector of electric heat section and fan section is valid.(DPS, temperature controller and fuse) Regularly clean the surface of electrical heating.
Note: Do not touch the surface of electrical heating to avoid being scratched or burnt.
7.7. Checking Section* The unit can be maintained through the access door. Open the access door by following the direction identified on the door. access ccess door after detection to prevent entrance of other people or object by accident. Note: Close and lock the a
7.8. Others For details about other components (such as the humidifier, transducer and heat runner), see the attached components introductions. *This functional section is available to only modular air handling units.
24
8 Maintenance Plan of Units (Recommend) Parts
Fan/motor
Inspection Item Fan in general
Check/Clean
Fan bearing
Check/Clean/ Greasing
Motor in general
Check/Clean
Motor bearing
Check
Motor Temperature
Check/Repair/ Replace fan
Belt drive tension
Check/ Re-tension
V belt
Detection/Clean/ Greasing
Corrosion damage
Coil Section
Filter
Maintenance Measure
Weekly Weekly Monthly 3 Monthly 6 Monthly Yearly
√ √ √ √ √ √ √
and Check/Treat/ Repair
√ √
S Bolt & nut secure
Check/Tighten
Excessive vibration
Check/Reset
√
Flexible connection
Check/Tighten
√
Vibration isolator
Check/ Adjustment
Blocking of duct
Check/Clean
Fin block
Check/Clean
Frost protection prote ction
Check/Appl Check/Apply y
Drain trap clog
Check/Clean
Corrosion
Check/Treat/ Repair
Leakage
Check/Repair
√
Bolts & nuts secure
Check/Tighten
√
Resistance (Washable)
Check/Clean
Resistance (Disposable)
Check/Change
Eliminator* Dirt accumulation
Check/Clean
Silencer*
Check/Clean
Health/corrode
Dirt retention Heat exchanger* Sealing strip Electric heater *
Maintenance interval
√ √ √ √ √ √
√ √ √ √ √
Check/Clean Check/Change
√
Trebling protection
Check/Repair
√
Electric heater tube
Check/Clean
√
*This functional section is available to only modular air handling units.
25
9 Trouble-shooting Common Failure
Abnormal sound
Location
1. Impeller
2. Gearing
Possible Causes The impeller is eccentric. The gap between bearings is too large so that the connection is loose. The impeller is loose. The connection between the roller and bearing is loose. The impeller is damaged. The fan fastening bolt is loose. Sundries exist in fan. Pulley is not fixed on roller. V belt is loose, and is adjusted in 48 hours after the first running. V belt is too tight. Improper model of V belt is used. Lengths of V belts in a unit where multiple V belts are uses are different. Fan V pulley and motor V pulley are not aligned. V belt is damaged. Bolts on the motor and those fastening the motor cabinet are loose.
3. Bearing
The bearing fails. There is a lack of lubricating oil. The bearing cabinet is loose. Installation is not straight. Sundries exist in the bearing. The bearing is damaged. The bearing gets rusty.
4. Fan volute
There are sundries in the volute. The volute is loose. The inlet air volute is damaged.
5. Electrical part
The accessing cables are loose. Motor or relay generates hum supply noise. Three-phase machine supplies single-phase electricity. electricity.
6. Roller
The roller is bent or deformed. The counterbalance is loose. The roller is loose.
7. Excessive wind speed
Air pipe is too small. Static pressure is lower than design value in practice. The opening of air valve is small.
Solutions Contact the dealer deale r. Contact the dealer deale r. Contact the dealer deale r. Contact the dealer deale r. Contact the dealer deale r. Fasten the bolt. Remove the sundries. Fasten the pulley. pulley. Adjust the V belt. Adjust the V belt. Replace the V belt. Replace the V belt and make sure all the V belts are of the same length. Justify the V pulleys. Replace the V belt. Fasten the bolt. Replace the bearing. Add lubricating oil. Fasten the bearing cabinet. Perform re-installation. Remove the sundries. Replace the bearing. Remove the rust or replace the bearing. Remove the sundries. Contact the dealer deale r. Contact the dealer deale r. Fasten the accessing cables. Contact the dealer deale r. Supply three-phase electricity. Replace the roller. Fasten the counterbalance. Fasten the roller. Adjust the air pipe. Adjust the system. Enlarge the opening of the air valve.
26
8. Periodicity Vibration
Air pipe is too small. The return air valve or mixed air valve is loose. The system is unstable. Air pipe vibrates with the pulsation of fan.
9. Noise caused when high speed Air leaks from the air pipe. wind flows through gaps and holes The air valve is loose. The air valve is not closed tightly. The turn of the air pipe is not smooth. 10. Gurgle sound The air pipe is abruptly extended or or harsh squealing shrinks. generated when Wind speed in the air pipe is too large. high speed air is The anti-vibration pad (vibration blocked attenuation contact) is too tight. Effective vibration isolation measure is not taken for vibration components.
Insufficient air output although the fan runs normally
Stale air in the air-conditioned room
Add sealant.
Fasten the air valve. Replace the air valve. Adjust the air pipe. Adjust the air pipe. Adjust the air pipe. Adjust the anti-vibration pad. Add vibration isolation device.
1. Fan
The impeller is installed incorrectly. incorrectly. The impeller rotates reversely. reversely.
Contact the dealer deale r. Adjust the phase sequence of power supply.
2. Ventilation pipe system
Practical resistance is lower than the design resistance. Air valve is closed. Air pipe seals improperly. improperly. FRD is closed.
Adjust the system. Open the air valve. Add sealant. Open the FRD.
3. Filter
The filter is dirty or even blocked.
4. Coil
7. No straight pipe at fan outlet
The filter is dirty or even blocked. Outlet and inlet area of the fan are not clearly distinguished. The wind flows from the outlet area directly to the inlet area through the loosely connected separation. Return air place is bend, and the fan port and unit wallboard are too close. There are obstacles in fan port. The capacity of fan can be reduced if no straight pipe is used.
8. Obstacles in the wind system
There are obstacles in the fan outlet. There is a bend in the fan outlet.
5. Short cut of airflow 6. Blocked fan inlet
Excessive air output although the fan runs normally
Adjust the air pipe. Fasten the air valve. Adjust the system. Adjust the fan speed.
2. Air duct
The size of air pipe is improper. The access door is open. The system is not balance. Practical resistance is lower than the design resistance. Air valve or vanes are not installed. Filter falls off (or is not installed). Leakage exists in return air pipe.
1. Filter
The filter is dirty. dirty.
2. Fresh air
Fresh air output is insufficient.
1. System
Clean or replace the filter. Clean the coil. Add a wind-separating board. Move the fan. Remove the obstacles. Install the straight pipe. Remove the obstacles. Adjust the air pipe. Adjust the air pipe. Close the access door. Adjust the system. Install the air valve or vanes. Reinstall the filter filte r. Add sealant. Clean or replace the filter. Increase the fresh air output.
27
10 After-sales Service Warranty 10.1. After-sales Service To repair or maintain, please contact your dealer firstly. Improper repair or maintenance may cause leakage, electric shock or fire. To move and reinstall the unit, contact your dealer firstly. Improper installation may cause leakage, electric shock or fire When requiring repairmen, please provide the following details: Model (see the nameplate or warranty application form); Factory number and date of installation (for details, see the warranty application form); Details of the failure(s); Your name, full address and telephone number.
Repair after the Warranty Period Expires Please contact your dealer. Chargeable service will be provided if the dealer can repair the unit.
Checking and maintenance maintenance After several seasons’ operation, the units’ performance will be decreased because of dirt or dust accumulated inside units. Besides the owner’s daily maintenance, it is suggested to sign a contractor with maintenance with distributor or manufacturer. As for the details of service, please contact with distributor.
Enquiry Any question about after-sales service please contact distributor.
10.2. Warranty A warranty application form is attached. The dealer will give you the warranty application form after filling in necessary items. Please keep warranty application form after checking the content.
Warranty Period The product is warranted for one year since the date of purchase. For details, see the warranty application form. During the guarantee time, any services are free if presented warranty application Otherwise, you will be charged for the costs.
28
11 Repair Repair and Maintenance Record The fault diagnosis and troubleshooting process should be described in details as possible. For details about troubleshooting, refer to Chapter 9 “Common Failure and Solution of Unit". Stop running the unit and cut the power when a failure is unclear. Consult the local dealers before further processing. Please properly keep the record. Model:
__________________________
Factory Number:___________________________
No.
Failure Description
Troubleshooting
Result
Recorded by
1
2
3
4
5
6
7
8
9
10
DAIKIN INDUSTRIES, LTD. Head Office: Umeda Center Bldg., 2-4-12, Nakazaki-Nishi, Kita-ku, Osaka, 530-8323 Japan
Recorded at
30
3. Single-fan Vertical Vertical Unit 45
4. Double-fan Vertical Vertical Unit J
J
45
Q
Q
L
L
G
0 4
D
F
E
G
D
N
0 4
D
F
E
Air Vent
Air Vent
Water Outlet
C
Water Outlet
C
H
H
K
K
Water Inlet
Water Inlet I
I
B
3 6
A
Model
L A
W B
H C
E
F
Pipe Fix Dim G
Table 4
Unit: mm
Outlet Dim D
Condensation Pipe R1-1/4
Condensation Pipe R1-1/4
Table 3 Dimension
90
B
3 6
A
90
H
I
Q (4R)
Q (6R)
Inlet Dim L (4R)
L (6R)
J
Dimension
L
W
H
Unit: mm
Outlet Dim
Pipe Fix Dim
Inlet Dim
K
Model
A
B
C
F
G
N
H
I
Q (4R)
2090
900
1673
473 407
151
167
382
736
138
194
180
110
137.5
1997
902
1923
430 481
107
269
342
863
137
196
182
110
137.5
2147
1035
D
E
Q (6R)
L (4R)
L (6R)
J
K
980
650
1283
333
292
149
195
498
127
181
181
82.5
137.5
888
655
DDW150V
DDW050V 1140
650
1343
397
343
86
267
498
129
180
180
82.5
137.5
1048
649
DDW180V
2240
900
DDW060V 1210
650
1403
397
343
93
335
561
128
179
179
82.5
137.5
1118
709
DDW200V
2320
900
1983
559 481
112
140
465
926
137
204
190
110
137.5
2227
1095
DDW080V 1320
810
1613
473
407
88
329
688
132
177
177
82.5
137.5
1228
842
DDW250V
2670
900
2043
559
88
267
456
976
141
193
179
110
13 7.5
2577
1155
DDW040V
DDW100V 1390
900
1853
559
481
114
259
815
129
189
189
82.5
137.5
1297
965
DDW120V 1530
900
1923
559
481
115
337
879
130
179
179
82.5
137.5
1437
1035
481
30
3. Single-fan Vertical Vertical Unit 45
4. Double-fan Vertical Vertical Unit J
J
45
Q
Q
L
L
G
0 4
D
F
E
G
D
N
0 4
D
F
E
Air Vent
Air Vent
Water Outlet
C
Water Outlet
C
H
H
K
K
Water Inlet
Water Inlet I
I
B
3 6
A
L
W
Model
A
B
DDW040V
H C
Condensation Pipe R1-1/4
Condensation Pipe R1-1/4
Table 3 Dimension
90
B
3 6
A
90
Table 4
Unit: mm
Outlet Dim
Pipe Fix Dim
D
E
F
G
H
I
Q (4R)
Q (6R)
Inlet Dim L (4R)
L (6R)
J
Dimension
L
K
Model
A
W
H
B
C
Unit: mm
Outlet Dim D
E
Pipe Fix Dim
F
G
N
H
I
Inlet Dim
Q (4R)
Q (6R)
L (4R)
L (6R)
J
K
980
650
1283
333
292
149
195
498
127
181
181
82.5
137.5
888
655
DDW150V
2090
900
1673
473 407
151
167
382
736
138
194
180
110
137.5
1997
902
DDW050V 1140
650
1343
397
343
86
267
498
129
180
180
82.5
137.5
1048
649
DDW180V
2240
900
1923
430 481
107
269
342
863
137
196
182
110
137.5
2147
1035
DDW060V 1210
650
1403
397
343
93
335
561
128
179
179
82.5
137.5
1118
709
DDW200V
2320
900
1983
559 481
112
140
465
926
137
204
190
110
137.5
2227
1095
DDW080V 1320
810
1613
473
407
88
329
688
132
177
177
82.5
137.5
1228
842
DDW250V
2670
900
2043
559
88
267
456
976
141
193
179
110
13 7.5
2577
1155
DDW100V 1390
900
1853
559
481
114
259
815
129
189
189
82.5
137.5
1297
965
DDW120V 1530
900
1923
559
481
115
337
879
130
179
179
82.5
137.5
1437
1035
481
32
3. Single-fan Vertical Unit Uni t J
4. Double-fan Double-fan Vertical Unit
7 3 1
J
L
Q L
G
D
E
0 4
F
D
N
G
D
E
F
0 4
Water Outlet Water Outlet
Air Vent
Air Vent
C
H
C
H
K
K
Water Inlet
Water Inlet 3 6
I
3 6
I
90
A
A
90
B
B
Condensation Pipe R1-1/4
Condensation Pipe R1-1/4
Table 3 Dimension
L
W
H
Unit: mm
Outlet Dim
Pipe Fix Dim
Inlet Dim
Model
A
B
C
D
E
F
G
H
I
L (4R)
L (6R)
J
K
DDW040V
980
650
1346
333
292
143
197
498
164
82.5
137.5
888
655
DDW050V
1140
650
1403
398
344
79
262
498
164
82.5
137.5
1048
687
DDW060V
1210
650
1460
398
344
79
332
561
164
82.5
137.5
1118 1118
DDW080V
1320
810
1673
473
407
85
330
688
164
82.5
137.5
1228
DDW100V
1390
900
1933
559
481
111 111
257
815
164
82.5
137.5
1397
1014
DDW120V
1530
900
2010
559
481
114
332
879
164
82.5
137.5
1437
1070
Table 4 Dimension
L
W
H
Unit: mm
Outlet Dim
Pipe Fix Dim
Inlet Dim
H
I
Q (4R)
473 407 152 595 384
73 6
172
151
1 37
110
137.5
1997
902
432 481 109 768 341
863
172
151
137
110
137.5
2147
1035
559 481 111 606 456
926
172
151
137
110
137.5
2227
1109
559 481
977
178
151
137
110
137.5
2577
1155
1167
150
111
97
110
137.5
2683
1390
569 569 131 900 450
---
144
111
97
110
137.5
2667
1550
638 638 171 883 500
---
144
111
97
110
137.5
2827
1710
638 638 171 874 500
---
144
111
97
110
137.5
2827
1870
Model
A
B
C
D
E
F
DDW150V
2090
900
1746
DDW180V
2240
900
1978
740
DDW200V
2320
900
2048
842
DDW250V
2670
900
2108
DDW300V
2766
1006
2555 569 569 131 900 450
DDW350V
2766
1006
2715
DDW400V
2926
1166
3035
DDW450V
2926
1166
3195
87
G
829
N
456
Q (6R)
L (4R)
L (6R)
J
K
32
3. Single-fan Vertical Unit Uni t J
4. Double-fan Double-fan Vertical Unit
7 3 1
J
L
Q L
G
D
E
0 4
F
D
N
G
D
E
F
0 4
Water Outlet Water Outlet
Air Vent
Air Vent
C
H
C
H
K
K
Water Inlet
Water Inlet 3 6
I
3 6
I
90
A
A
90
B
B
Condensation Pipe R1-1/4
Condensation Pipe R1-1/4
Table 3
Unit: mm
Outlet Dim
Pipe Fix Dim
Table 4
Unit: mm
Dimension
L
W
H
Model
A
B
C
DDW150V
2090
900
1746
DDW180V
2240
900
1978
740
DDW200V
2320
900
2048
842
DDW250V
2670
900
2108
DDW300V
2766
1006
2555 569 569 131 900 450
DDW350V
2766
1006
2715
DDW400V
2926
1166
3035
DDW450V
2926
1166
3195
Dimension
L
W
H
Model
A
B
C
D
E
F
G
H
I
L (4R)
L (6R)
J
Inlet Dim K
DDW040V
980
650
1346
333
292
143
197
498
164
82.5
137.5
888
655
DDW050V
1140
650
1403
398
344
79
262
498
164
82.5
137.5
1048
687
DDW060V
1210
650
1460
398
344
79
332
561
164
82.5
137.5
1118 1118
DDW080V
1320
810
1673
473
407
85
330
688
164
82.5
137.5
1228
DDW100V
1390
900
1933
559
481
111 111
257
815
164
82.5
137.5
1397
1014
DDW120V
1530
900
2010
559
481
114
332
879
164
82.5
137.5
1437
1070
Outlet Dim
Pipe Fix Dim
Inlet Dim
H
I
Q (4R)
Q (6R)
L (4R)
473 407 152 595 384
73 6
172
151
1 37
110
137.5
1997
902
432 481 109 768 341
863
172
151
137
110
137.5
2147
1035
559 481 111 606 456
926
172
151
137
110
137.5
2227
1109
559 481
977
178
151
137
110
137.5
2577
1155
1167
150
111
97
110
137.5
2683
1390
569 569 131 900 450
---
144
111
97
110
137.5
2667
1550
638 638 171 883 500
---
144
111
97
110
137.5
2827
1710
638 638 171 874 500
---
144
111
97
110
137.5
2827
1870
D
E
F
87
G
829
N
456
L (6R)
J
K
35
Appendix 4: Dimensions For FUW-A Unit
Table 1
Table 2
Unit: mm
Unit: mm
Dimension
W
Inlet Dim
Outlet Dim
Hanging Hole Dim
Dimension
W
Inlet Dim
Outlet Dim
Hanging Hole Dim
Model
A
B
C
D
Model
A
B
C
D
E
FUW015A
750
540
235
667
FUW030A
1220
1010
265
170
1137
FUW020A
910
700
315
827
FUW035A
1370
1160
320
210
1287
FUW025A
1070
860
395
987
FUW040A
1520
1310
330
340
1437
FUW050A
1850
1640
395
540
1767
35
Appendix 4: Dimensions For FUW-A Unit
Table 1
36
Table 2
Unit: mm
Unit: mm
Dimension
W
Inlet Dim
Outlet Dim
Hanging Hole Dim
Dimension
W
Inlet Dim
Outlet Dim
Hanging Hole Dim
Model
A
B
C
D
Model
A
B
C
D
E
FUW015A
750
540
235
667
FUW030A
1220
1010
265
170
1137
FUW020A
910
700
315
827
FUW035A
1370
1160
320
210
1287
FUW025A
1070
860
395
987
FUW040A
1520
1310
330
340
1437
FUW050A
1850
1640
395
540
1767
36
While utmost care is taken in ensuring that all details in the publication are correct at the time of going to press, we are constantly striving for improvement and therefore reserve the right to alter model specifications and equipment without notice. Details of specifications and equipment are also subject to change to suit local conditions and requirements and not all models are available in every market.
