Coolsure Limited
Uninterruptible Telecom Split Airconditioner
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1 Contents 1 2 3
Contents ................................................................................... ............................................................................................................................. .......................................... 2 Introduction......................................................................................................................... Introduction......................................................................................................................... 3 Layout and Hardware Installation....................................................................................... Installation....................................................................................... 4 3.1 Display ............................................................................... .......................................................................................................................... ........................................... 4 3.2 Keypad.................................................. Keypad.......................................................................................................................... ........................................................................ 4 3.3 Alarm LED ....................................................................................... .................................................................................................................... ............................. 5 3.4 Communication Communication LED..................................................................................................... 5 3.5 Service Port ..................................................................................... .................................................................................................................. ............................. 5 3.6 Alarm Outputs................................................................................................ Outputs............................................................................................................... ............... 5 3.7 External Input Channel ............................................................................... ................................................................................................. .................. 5 3.8 USB Port....................................................................................................................... 5 3.9 CoolBus Port..................................................................... Port................................................................................................................. ............................................ 5 3.10 Installing the System Hardware ............................................................................... 5 4 Application Menu................................................................................................................ 7 4.1 Menu Overview............................................................................................................. Overview............................................................................................................. 7 4.2 Updating Parameters.................................................................... Parameters.................................................................................................... ................................ 7 4.3 Entering Password / Default Default Password........................................................................ Password ........................................................................ 7 4.4 Default Menu ................................................................................... ................................................................................................................ ............................. 8 4.5 Settings Menu............................................................................................................. 10 4.6 Monitor Units Menu ................................................................................................ .................................................................................................... .... 16 4.7 Monitor Alarms Menu ........................................................................................... ................................................................................................. ...... 19 4.8 Configure Menu ....................................................................................... .......................................................................................................... ................... 22 4.9 Statistic Menu ........................................................................................... ............................................................................................................. .................. 25 4.10 Alarm Log Menu..................................................................................................... 27 5 Software Update.............................................................................................................. 28
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1 Contents 1 2 3
Contents ................................................................................... ............................................................................................................................. .......................................... 2 Introduction......................................................................................................................... Introduction......................................................................................................................... 3 Layout and Hardware Installation....................................................................................... Installation....................................................................................... 4 3.1 Display ............................................................................... .......................................................................................................................... ........................................... 4 3.2 Keypad.................................................. Keypad.......................................................................................................................... ........................................................................ 4 3.3 Alarm LED ....................................................................................... .................................................................................................................... ............................. 5 3.4 Communication Communication LED..................................................................................................... 5 3.5 Service Port ..................................................................................... .................................................................................................................. ............................. 5 3.6 Alarm Outputs................................................................................................ Outputs............................................................................................................... ............... 5 3.7 External Input Channel ............................................................................... ................................................................................................. .................. 5 3.8 USB Port....................................................................................................................... 5 3.9 CoolBus Port..................................................................... Port................................................................................................................. ............................................ 5 3.10 Installing the System Hardware ............................................................................... 5 4 Application Menu................................................................................................................ 7 4.1 Menu Overview............................................................................................................. Overview............................................................................................................. 7 4.2 Updating Parameters.................................................................... Parameters.................................................................................................... ................................ 7 4.3 Entering Password / Default Default Password........................................................................ Password ........................................................................ 7 4.4 Default Menu ................................................................................... ................................................................................................................ ............................. 8 4.5 Settings Menu............................................................................................................. 10 4.6 Monitor Units Menu ................................................................................................ .................................................................................................... .... 16 4.7 Monitor Alarms Menu ........................................................................................... ................................................................................................. ...... 19 4.8 Configure Menu ....................................................................................... .......................................................................................................... ................... 22 4.9 Statistic Menu ........................................................................................... ............................................................................................................. .................. 25 4.10 Alarm Log Menu..................................................................................................... 27 5 Software Update.............................................................................................................. 28
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2 Introduction The Central Control Unit (CCU-03) is used for adjustment of system parameters and setpoints and the provision of advanced monitoring monitoring and control features in a Coolsure Uninterruptible Telecom Split (UTS) Airconditioning System and a Coolsure Direct Air Cooling Fan/Filter Unit. Individual cooling units communicate directly with each other via the CoolBus communication bus, allowing the Coolsure UTS system to be fully functional without requiring the CCU-03 to be connected. connected. The CCU-03 can thus be used either as a service tool tool for the Coolsure Coolsure UTS system to adjust setpoints and view detailed system parameters for fault finding, or can be permanently permanently installed at the site to provide remote alarm capability and enhanced system features. This User Manual describes the features and operation of the CCU-03 Central Control Unit.
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3 Layout and Hardware Installation The main components of the Central Control Unit are shown in Figure 2-1 below Figure 2-1: Central Control Unit Layout
Display
Keypad
Alarm LED
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Enter
Enter key is used to jump to the lower level in t he menu and to confirm the parameter setting.
3.3 Alarm LED There are 3 alarm levels which can be shown on the LED. Green LED
lights up to indicate the system is working properly and no alarms are active.
Yellow LED
lights up to indicate there is/are observation alarm(s) active
Red LED
lights up to indicate there is/are warning alarm(s) active
Red LED
flashes to indicate there is/are critical alarm(s) active.
The alarm LED displays the highest alarm level that is currently active in the system, with the observation alarm being the lowest alarm level and the critical alarm being the highest alarm level. Each alarm can be set to any one of the alarm levels, or disabled (see Settings Menu)
3.4 Communication LED The communication LED indicates activity on the CoolBus between the airconditioning units, fan/filter unit and the Central Control Unit (CCU-03). Ordinarily the LED should flash a few times per second, everytime the Central Control Unit receives communication from one of the airconditioning units or fan/filter unit – failure of the LED to flash is an indication of a problem with the CoolBus connection, or a fault in one/all of the units connected to the CoolBus.
3.5 Service Port
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If either a airconditioning unit or a fan/filter unit is turned on, the Central Control Unit should be powered and able monitor the system The green “Communication LED” should flash to indicate communication on the CoolBus – failure of the LED to flash indicates a problem with the CoolBus connection, or one/more faulty units connected to the CoolBus.
Adding a new airconditioning unit to the system: New airconditioning units can be connected to the CoolBus while the system is running New units are automatically detected and integrated into the system by the existing airconditioning units and Central Control Unit. Units are allocated Unit Numbers (used for viewing detailed unit parameters, see Monitor Units) based on their serial numbers If any of the setpoints of the newly connected unit are different from the existing unit, these need to be adjusted via the Central Control Unit (see Setting Menu) •
•
•
•
Removing a unit from the system: Typically the loss of a unit from the CoolBus is indicative of a fault in the unit. The other airconditioning units automatically adjust to the loss of a unit from the CoolBus, providing redundant operation. In order to provide failsafe system monitoring, the Central Control Unit generates a “Unit Lost” alarm if a unit from the system for a certain length of time (Section 4.5.2). This ensures that an alarm is generated in the case that a unit has failed in such a way that it is unable to send a fault alarm to the Central Control Unit. In the case of intentionally removing a unit from the system, this alarm can be reset by re-initializing the number of units in the Central Control Unit (Section 4.8.5). •
•
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4 Application Menu 4.1 Menu Overview The application menu overview is shown in Appendix C. The up/down/left/right keys are used to navigate the menu structure, with enter and escape keys used to navigate into and out of the sub menu structure.
4.2 Updating Parameters Some parameters can be changed so as to fulfill different requirements. Password protection is provided to prevent unauthorised modification of system settings. The Central Control Unit prompts for the password (if it has not been entered yet) before allowing any change on the system – password will need to be re-entered following 1 hour of inactivity (no keys pressed).
4.3 Entering Password / Default Password The factory default Password is “0000”. If the password has not been modified from this factory default setting, one only need press the enter key when prompted to enter the password. Note: Care must be taken when changing the password as loss of the password will prevent future access to the system. New software will need to be downloaded to the Central Control Unit to reset the password
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4.4 Default Menu This is the menu at the startup. It can be entered by pressing “ESC” repeatedly from any level menu. The Control Unit will also return to Default menu if it is idle for more than 30 minutes. The menu description is shown in figure 3.2-1. Figure 3.2-1 Default Menu Description
1 2
2
7
.
5
℃
4
A L
L
:
N o
r m a
4
0
5
3
% R H l
2
5
H z
O K
6
Legend: 1: Average Return Temperature (measured by the airconditioning units) or T-1C/TRH-2C Temperature measurement (if T-1C/TRH-2C Temperature/Relative Humidity Transmitter is connected) 2: T-1C/TRH-2C Relative Humidity (This item is blank if T-1C/TRH-2C is not connected) 3: This value is actual fan speed of the fan/filter unit in percentage if fan/filter unit is running only; otherwise, it is average actual compressor speed of the airconditioning units in hertz. 4: Operating Unit: There are 4 situations: OFF (Neither fan/filter unit or airconditioning unit is running), ECS (fan/filter unit is running only), UTS (airconditioning unit(s) is/are running only) and ALL (Both fan/filter unit and airconditioning unit(s) are running). 5: Operating Mode: There are 5 types of operating mode: Normal mode (lowest priority to be shown),
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Figure 3.2.1-1 Example of Activated Alarm List H i g h T e m p A l a r m H i g h S p e e d A l a r m U n i t F a u l t > 1 A C F a u l t U n i t L o s t In this example, the second and the third of 5 active alarms is shown on the screen.
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4.5 Settings Menu This menu is used to change the system setting. All parameters in this menu can be updated.
4.5.1 Setpoint Menu The various system setpoints are stored in each individual airconditioning unit and fan/filter unit, and the Central Control Unit displays the average value stored in the units. The setpoints in each airconditioning unit and fan/filter unit should ordinarily be identical for correct system operation, but adding a new airconditioning unit to the system can result in units with different setpoints. The system setpoints can be edited via the Central Control Unit and are updated in each individual airconditioning unit and fan/filter unit upon acceptance (by pressing the enter key) of the edited value. After editing, the Central Control Unit reads back and displays the average value stored in the units, allowing one to check that the value has been correctly updated. An example screen is shown in Figure 3.4.1-1. For more information about the setting range and factory default setting, see Appendix B. “Parameter Information”. Figure 3.4.1-1 Normal Setpoint in Setpoint Menu N o r m a l S e t p o i n 2 8 . •
t 5
℃
Normal Setpoint
This is the temperature setpoint in Normal mode (when the unit is not in Setback mode or Backup mode). The system would maintain the room temperature according to this setpoint in
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consumption – for example setpoint will be higher during the daytime since the ambient temperature will be raised, This is a delta value applied on the temperature setpoint which limited its linear variation with outdoor ambient. (i.e. With setpoint of 25C and tr ack delta of 2C, setpoint varies between 23C and 27C with ambient temp. In details, if the ambient dropped below its average by 1C, the setpoint becomes 24C.) This feature can be disabled by setting the value to zero. •
Delta Temp
The airconditioning units normally adjust their compressor speeds in order to maintain the room temperature equal to the setpoint. However, under light load conditions, the airconditioning unit may still provide too much cooling capacity at minimum compressor speed (20Hz). In this case the units switch into an on/off control mode in order to maintain the room temperature equal to the setpoint. This is a delta value on the temperature setpoint which provides hysteresis on switching on/off the compressor. (i.e. if return temperature < setpoint – delta, the compressor will be switched off; if the return temperature > setpoint + delta, the compressor will be switched on). Normally this value should be in the range of 0.5C to 2.0C. Too low a value leads to more accurate temperature control, but more frequently cycling of the compressors and increased energy consumption. Units automatically determine which compressor should be turned off/on in order to equalize run-time between the different units.
UTS Fan@Comp Off
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This is the desired humidity level for the system. The airconditioning units are able to provide dehumidification of the air for cases where sites are located in humid environments. The airconditioning units are not able to provide humidification for cases where sites are located in dry environments – external humidifiers are needed if this functionality is required. •
Delta Humidity
(Feature is currently not implemented) (This item is applicable only when the T-1C/TRH-2C is connected) The upper margin for the humidity setpoint above which dehumidify mode is activated. •
Service Interval
This is the regular service interval (in weeks). A timer and “service due alarm” is provided to prompt service personnel to clean air filters, heatexchangers, etc. •
Service Overdue
This is the maximum valid service valid interval (in weeks) after the “service due” alarm is activated, before the service overdue alarm is activated. •
I/O Delta AC ON
This is a delta value, comparing with temperature difference between indoor and outdoor, to switch on/off the fan/filter unit when airconditioning unit is running. (i.e. if Indoor Temp – Outdoor Temp ≥ I/O Delta AC ON, fan/filter unit will be startup; if Indoor Temp – Outdoor Temp ≤ I/O Delta AC ON - 1 C, fan/filter unit will be shut) ˚
•
I/O Delta AC OFF
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4.5.2 Alarm Settings Menu This menu allows user to set activation and deactivation levels for the system alarms dependent on analogue parameters. Also, it allows setting of the alarm level (observation, warning, critical, none) associated with the alarm, which controls which LED and changeover alarm relay is activated together with the alarm. Some alarms will set an additional relay on the fan/filter unit to be activated together with the alarm. The parameters are saved in the Central Control Unit. See Appendix A for more information about the relation between Indoor Unit Alarm and Central Control Unit Alarm. The following is the description of this menu, Alarm Name
H i
g
h
T e
3
.
0
3
5
Activate point
m p 3
.
A l 5
Deactivate point
High Temp Alarm
r m
3
A 1
External Relay Number
Figure 3.4.2-1 Alarm Setting Menu Description
•
a
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High Latent Load
(This item is applicable only when T-1C/TRH-2C is connected) The Central Control Unit monitors what percentage of time dehumidification is required. A high percentage of time requiring dehumidification is indicative of a high latent heat load, which can indicate poor sealing of the BTS room. High latent load directly impacts on the airconditioner energy consumption, so it is desirable to minimise the latent heatload. The activation point should always be set higher than the deactivation point. •
UTS Comp Hi Spd
This alarm indicates the average compressor speed is high. The activation point should always be set higher than the deactivation point. •
Missing Filter
This alarm indicates the fan filter is missing (Filter pressure is too low when the fan is running). The activation point should always be set lower than the deactivation point. This alarm shall set an additional relay on the fan/filter unit. •
Replace Filter
This alarm indicates the fan filter experiences over-pressure (Filter pressure is too high when the fan is running). The activation point should always be set higher than the deactivation point. This alarm shall set an additional relay on the fan/filter unit. •
Blocked Filter
This alarm indicates the fan filter is in need of replacement (Filter pressure is too high when the fan is running). The activation point should always be set higher than the deactivation
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•
Service Overdue
This alarm indicates the time (in weeks) since last service of some units exceeds the preset service overdue limit. This alarm can be deactivated by resetting the service timer in “Service Done” item (Section 4.8.4). •
In Power Limit
(Feature is currently not implemented) •
Superheat
(Feature is currently not implemented) •
ECS Fan Fail
This alarm indicates the ECS fan is not working properly since the fan is unable to follow the commanded speed over certain period. This alarm shall set an additional relay on the fan/filter unit. •
ECS Sensor Fault
This alarm indicates the sensor(s) is/are (partially) malfunctioning. This alarm shall set an additional relay on the fan/filter unit. •
Unit Lost
This alarm indicates some units (either one or more of the airconditioning units, fan/filter unit or T-1C/TRH-2C) have been disconnected from the system. This alarm activates if the controller cannot communicate with an airconditioning unit or
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4.6 Monitor Units Menu This menu monitors parameters in the airconditioning and fan/filter units. The average values are displayed in “ALL” column as shown in figure 3.5-1 and the individual values are displayed in “Unit” column as shown in figure 3.5-2. Value might be invalid as shown in figure 3.5-3. An invalid value may be indicative of a faulty sensor. Press left and right arrows to scroll between unit data and the average data (all). Figure 3.5-1 “ALL” column with averaged Return Temp R e t u r n T e m p A L L : 2 9 . 6
℃
Figure 3.5-2 “Unit 1” column with Return Temp of Unit 1 R e t u r n T e m p U n i t 1 : 2 9 . 9 ℃ Figure 3.5-3 Invalid value of Unit 2 Return Temp R e t u r n T e m p U n i t 2 : - - .
-
℃
4.6.1 Monitor UTS Menu This menu monitors parameters in the airconditioning units. When reading data from a particular unit (eg Unit 1), the LEDs and display of that unit flash to aid identification of each unit.
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The compressor speed operation is mainly depends on the different between the average of this value among the units and the setpoint. This value is used to determine if there is “High Temp” Alarm, “VHigh Temp” Alarm, “Low Temp” Alarm or “VLow Temp” Alarm in the case that the T-1C/TRH-2C is not connected to the system. •
Ambient Temp
This is the ambient temperature in degree Celsius measured by outdoor unit. If ambient sensor is faulty, the indoor unit activates “Temp Sensor” fault and invalid value is shown in this item. •
Evaporator Temp
This is the condenser temperature in degree Celsius. If evaporator sensor is faulty, the indoor unit activates “Temp Sensor” fault and invalid value is shown in this item. Outdoor Unit uses this value to control the EEV setting and to determine if there is Exchanger Frost Protection (Evaporator T Low) which is a “Unit Fault” alarm. •
Condenser Temp
This is the condenser temperature in degree Celsius. If condenser sensor is faulty, the indoor unit activates “Temp Sensor” fault and invalid value is shown in this item. Outdoor Unit uses this value to determine if there is Over Refrigeration Protection (Condenser T High) which is a “Unit Fault” alarm. •
Suction Temp
This is the suction temperature in degree Celsius. If suction sensor is faulty, the indoor unit activates “Temp Sensor” fault and invalid value is shown in this item.
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75Hz = 1.5 weighted hours. This provides an indication of how hard the unit has been working) •
Time till service
This is the time in weeks since the last service. Indoor Unit uses this value to determine if there is “Service Due” or “Service Overdue”.
4.6.2 Monitor ECS Menu This menu monitors parameters in the fan/filter units. •
Indoor Temp
This is the indoor temperature in degree Celsius measured by UTS airconditioning units. If this temperature is invalid, the ECS unit activates “ECS Sensor Fault” alarm. •
Outdoor Temp
This is the outdoor temperature in degree Celsius. If this temperature is invalid, the ECS unit activates “ECS Sensor Fault” alarm. •
In Rel Humidity
This is the indoor relative humidity in percentage measured by temperature transmitter. If the transmitter does not have this function, this value will be invalid. •
Out Rel Humidity this humidity is invalid, the ECS
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4.7 Monitor Alarms Menu This menu monitors the status in the system. There are “ALL” column and Unit column to observe status. At “ALL” column, the status shows “yes” if all units have the alarm , “no” if no units have this alarm or “---” if some units have this alarm. At “Unit” column, the LEDs and display of the target unit should be flashing and the status shows “yes” if the alarm is active or “no” if it is inactive. Some alarms can be shown on Indoor Unit Display as well, see Appendix A for more information. The following are some examples, Figure 3.6-1 Unit 1 with AC High Active at “Unit 1” column A C H i g h U n i t 1 : Y e s Figure 3.6-2 All Units with AC Low Active at “ALL” column A C L o w A L L : Y e s Figure 3.6-3 Some Units with BCU Fault at “ALL” column B C U F a u l t A L L : - - •
AC High
This status indicates the AC supply voltage to the airconditioning unit is too high (> 255V). “AC Fault” alarm is activated with this status. •
AC Low
*This status indicates the AC supply voltage to the airconditioning unit is too low (< 165V).
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Service Due
This status indicates the time (in weeks) since last service exceeds the service interval. “Service Due” alarm is active with this status. •
Service Overdue
This status indicates the time (in weeks) since last service exceeds the service overdue interval. “Service Overdue” alarm is active with this status. •
UTS Temp sensor
This status indicates there is sensor reading error on the system. These sensors included return temperature sensor, ambient sensor, evaporator sensor, condenser sensor, suction sensor and discharge sensor. “Unit Alarm” alarm is active with this status •
Comp High Temp
This status indicates the compressor temperature is currently too high (i.e. T > 120 ). The outdoor unit will protectively shutdown until the temperature dropped back. “Unit Alarm” alarm is active with this status. •
Evaporator T Low
This status indicates the outdoor unit is currently in Exchanger Frost Protection (i.e. Tevaporator ≤+2℃). “Unit Alarm” alarm is active with this s tatus •
Comp Overcurrent
This status indicates the outdoor unit is currently in current protection (i.e. I comp > 11A). “Unit
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Dehumidify
(Feature is currently not implemented) (This item is applicable only when the T-1C/TRH-2C is connected) This status indicates the system is in dehumidifying mode. T-1C/TRH-2C sends an activation command after the dehumidify rate exceeds alarm activation level; the T-1C/TRH-2C sends a deactivation command after the dehumidify rate below the deactivation level. “Unit Alarm” alarm is active with this status
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4.8 Configure Menu The items inside this menu allow configuring the setting in the Central Control Unit.
4.8.1 Set Password Central Control Unit allows updating the password so as to enhance security of the system. The “Set Password” screen is shown in figure 3.7.1-1. Figure 3.7.1-1 “Set Password” screen N E W P W : * * * * R E T Y P E : * * * * Before changing the password and if the password has not been entered, Central Control Unit will ask for the password for verification. Afterward, it is allowed update the password as shown in figure 3.7.1-2. Figure 3.7.1-2 Edit the password N E W P W : 0 R E T Y P E : *
* *
* *
* *
The password is a 4 single digit numbers. By pressing “LEFT” or “RIGHT”, it can select the digits, and by pressing “UP” or “DOWN”, it can change the number. The Central Control Unit then requires user to retype the same new password for reconfirmation as shown in figure 3.7.1-3. Figure 3.7.1-3 Retype the password N E W P W : * *
*
*
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Figure 3.7.3-1 “Setback Period” Description Start Day D a
y
:
H o
u
r :
Complete Day
M O N
To
1 0
To
Start Hour
F
R I
1 8
Complete Hour
In this example, this setback period should be from 10am to 6pm on from Monday to Friday. The system is in setback mode during this period. Note that to disable the setback function, user might set the start hour equal to the complete hour.
4.8.4 Service Done Central Control Unit requires regular service to maintain the system quality. It generates “Service Due” and “Service Overdue” alarm after certain length of time. Technician could reset the service timer by this item after the check. By pressing “ENTER” in this item, the re-confirm screen is shown afterward as in figure 3.7.41 Figure 3.7.4-1 Re-confirm Screen after pressed “ENTER” at “Service Done” item A r e y o u s u r e ?
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4.8.9 UTS Software This item shows the UTS software version.
4.8.10
ECS Software
This item shows the ECS software version.
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4.9 Statistic Menu Each airconditioning unit stores detailed statistics for reference and analysis. Statistics are initialised after startup or after reset of the statistics (Section 4.9.1). The values displayed are average values of all the airconditioning units. •
Av Room Temp
This is the averaged (indoor) return temperature. If a return temperature sensor is faulty, a value of zero is used for calculating the return temperature while the sensor is faulty. •
Max Room Temp
This is the maximum (indoor) return temperature. •
Min Room Temp
This is the minimum (indoor) return temperature. •
Av Ambient Temp
This is the averaged (outdoor) ambient temperature. If an ambient temperature sensor is faulty, a value of zero is used for calculating the return temperature while the sensor is faulty. The ambient temperature sensor is located in the airstream near the outdoor heatexchanger – recirculation and other effects can affect the accuracy of the ambient temperature sensor. •
Max Ambient Temp
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Ambient 40-44’C
This is the accumulated hours for ambient temperature between 40 and 44 degrees Celsius. •
Ambient 35-39’C
This is the accumulated hours for ambient temperature between 35 and 39 degrees Celsius. •
Ambient 30-34’C
This is the accumulated hours for ambient temperature between 30 and 34 degrees Celsius. •
Ambient 25-29’C
This is the accumulated hours for ambient temperature between 25 and 29 degrees Celsius. •
Ambient 20-24’C
This is the accumulated hours for ambient temperature between 20 and 24 degrees Celsius. •
Ambient 15-19’C
This is the accumulated hours for ambient temperature between 15 and 19 degrees Celsius. •
Ambient 10-14’C
This is the accumulated hours for ambient temperature between 10 and 14 degrees Celsius. •
Ambient 5-9’C
This is the accumulated hours for ambient temperature between 5 and 9 degrees Celsius.
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4.10 Alarm Log Menu Central Control Unit has logging function to record the alarm status. This function can save 96 latest logs – older alarms are overwritten. The “Alarm Log” description is shown in figure 3.91. Figure 3.9-1 “Alarm Log” description Log Number
0
Date
1
)
0
U n
i
t
1
Month
0
1
F a
u
/
Hour
1 l
2
Minute
:
1
5
A = Activated D = Deactivated
A
t
Alarm Name The alarm log can update over time. Once a new log has been recorded, the function would pump the user to the latest log.
4.10.1
Reset Alarm Log
By pressing “LEFT” or “RIGHT” in Alarm Log Column, it jumps to “Reset” column. This column is used to reset the Alarm Log. By pressing “ENTER” in this column, the re-confirm screen is shown afterward as in figure 3.8.1-1 Figure 3.8.1-1 Re-confirm Screen after pressed “ENTER” at “Reset” column in Statistic Menu
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5 Software Update This part describes how to update the Central Control Unit software step by step: Installing the Programming Hardware Launching the Coolsure Programmer Application Importing the Software Update File Update the Central Control Unit software • • • •
5.1 Installing the Programming Hardware • •
•
Plug one end of USB cable into a USB port on the PC. *Hold the “ESC” button on Central Control Unit and Plug the other end into the USB port on the Unit. The Central Control Unit connection can then be detected by the PC.
Note: This (*) part is essential for Central Control Unit to enter to programming mode.
5.2 Launching the Coolsure Programmer Application Launching the Coolsure Programmer and the programming interface appear as shown in Figure 5.2-1. If the application fails to launch, refer to the note below.
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5.3 Importing the Software Update File To import a software update (Hex File) to be programmed into the Central Control Unit, click “Load File”, Browse for the Hex file and click open as shown in Figure 5.3-1
Figure 5.3-1 Import Hex File After imported the Hex file, the “Update Software” is active in the application. An example interface is shown in Figure 5.3-2.
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6 Troubleshooting Problem Cause General (existed in “Active Alarm List”) “AC Fault” alarm The electricity supply failure “BCU Fault” alarm
The supply to BCU is unable to supply enough power to the unit
“Missing Filter” alarm
Filter is missing in Fan/Filter Unit The efficiency is dropped due to the filter The air can hardly be drawn from outside The unit is idle from service over a length of time
“Replace Filter” alarm “Blocked Filter” alarm “Service Due” and “Service Overdue” alarm “Fan Fail” alarm
“Sensor Fault” alarm with Invalid Indoor Temp Invalid Outdoor Temp
Actual Fan speed is unable to reach the target speed
Indoor Temp cannot be obtain from Indoor Unit Outdoor Temp is faulty
Remedy Contact local electric company Check the BCU power source Replace BCU Insert the filter to the unit Replace or clean the filter Check if the airflow side on the shelter is blocked Provide service to the unit and then reset the service timer (Section 4.8.4) Check the fan connection on the fan/filter controller Replace the fan/filter controller Check below “Invalid Return Temp” Replace Ambient Sensor
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Appendix A. Indoor Unit Alarm Figure A-1 Indoor Unit Display Interface
OK
BACKUP
ALARM SPEED
Legend: The OK LED lights up indicated the unit is working properly. The BACKUP LED lights up indicated the unit is running in battery. The ALARM LED lights up indicated the unit has normal alarm. The ALARM LED flashes indicated the unit has urgent alarm. The Display shows value and alarm label (if exists) by turns: The value shows the actual compressor speed when the Speed LED lights o up. When the Speed LED goes out, the display shows the alarm labels and o return temp in turn if there is alarm; otherwise, the display shows return temp only. • • • • •
Alarm Description: Label Definition(Status Name)
Urgent?
Correlated Alarm
From Indoor Unit E0
CoolBus Fault
No
Unit Alarm
F0
Return Sensor Fault(Temp Sensor)
Yes
Unit Alarm
F1
Evaporator Sensor Fault(Temp Sensor)
No
Unit Alarm
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Appendix B. Parameter Information The parameter ranges and resolution in different menu are described as follow: Setpoints Menu Normal Setpoint
Range [20.0:40.0]
Monitor Unit Menu (Monitor UTS)
Monitor Unit Menu (Monitor ECS)
Compressor Speed
Range [0:75]
Indoor Temp
Range [-20.0:60.0]
Outdoor Temp
[-20.0:60.0]
Setback Setpoint
[20.0:40.0]
Indoor Fan Speed
[0:100]
Backup Setpoint
[20.0:40.0]
Outdoor Fan Spd
[0:100]
In Rel Humidity
[0:100]
Track Delta
[0.0:20.0]
Dehumidify Rate
[0:100]
Out Rel Humidity
[0:100]
Delta Temp
[0.0:20.0]
EEV Setting
[0:500]
In Abs Humidity
[0.0:25.5]
UTS Fan@Comp Off
[0:100]
Return Temp
[-16.0:62.0]
Out Abs Humidity
[0.0:25.5]
UTS Capacity
[50:200]
A mbient Temp
[-20.0:80.0]
Filter Pressure
[0:999]
Humidity Setpt
[0:100]
Evaporator Temp
[-16.0:62.0]
Fan Speed
[0:100]
Delta Humidity
[0:100]
Condenser Temp
[-20.0:80.0]
Total Runtime
[0:999999]
Service Interval
[0:212]
Suction Temp
[-20.0:80.0]
Fan Runtime
[0:999999]
Service Overdue
[0:212]
Discharge Temp
[0.0:150.0]
I/O Delta AC ON
[0.0:5.0]
AC Supply Volt
[0:1020]
I/O Delta AC OFF
[0.0:5.0]
BCU Voltage
[0:1020]
ECS Fan Min Spd
[30:70]
Input Power (sum)
ECS Fan Max Spd
[70:120]
Total Run Time
[0:999999]
Max Humidity
[15:30]
Comp Run Time
[0:999999]
Weight Run Time
[0:999999]
Alarm Setting Menu High Temp Alarm
Range [0.0:50.0]
Vhigh Temp Alarm
[0.0:50.0]
Low Temp Alarm
[0.0:50.0]
Time till service
[0:212]
Coolsure Limited
Factory default settings stored in Indoor Unit and fan/filter unit are defined as follow: Indoor Unit
Default Value
Fan/filter unit
Default Value
Normal Setpoint
21.0
Normal Setpoint
21.0
Setback Setpoint
35.0
Setback Setpoint
35.0
Backup Setpoint
24.0
Backup Setpoint
24.0
Backup Setpoint
24.0
Delta Temp
1.0
Track Delta
0.0
I/O Delta AC ON
3.5
Delta Temp
1.0
I/O Delta AC OFF
2.0
UTS Fan@Comp Off
56
ECS Fan Min Spd
40
UTS Capacity
160
ECS Fan Max Spd
100
Humidity Setpt
55
Max Humidity
27
Delta Humidity
5
Service Interval
13
Service Overdue
17 Activate Level
Deactivate Level
Activate Level
Deactivate Level
Relay
High Temp Alarm
40.0
38.0
High Temp Alarm
40.0
38.0
1
Vhigh Temp Alarm
45.0
43.0
Low Temp Alarm
20.0
22.0
0
Low Temp Alarm
20.0
22.0
High Humidity
20
15
0
Vlow Temp Alarm
10.0
12.0
Missing Filter
70
65
2
High Latent Load
20
15
Replace Filter
220
180
0
UTS Comp Hi Spd
70
65
Blocked Filter
250
180
2
ECS Fan Fail
2
ECS Senor Fault
2
