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Related Manuals for Dantherm DCU22-2000DH
Summary of Contents for Dantherm DCU22-2000DH
- Page 1 Service Manual DCU22-2000DH 366146 Dec. 20 2010...
- Page 2 Revision History Revision Description Author Date First design Roge. Wang 2009-04 Release Roge. Wang 2009-06 Updated Roge. Wang 2009-12 Updated Tom.sun 2010-06 Weight and sheet metal materials changed Tom.sun 2010-12 2 of 53...
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Page 3: Table Of Contents
Table of contents O VERVIEW……………………………………………………………………………………………………5 、 、 、 、 :............................5 NTRODUCTION ..........................5 SAGE OF THE PRODUCT ..............................5 TORAGE ........................5 DENTIFICATION OF THE ©............................. 5 OPYRIGHT ........................6 ECLARATION OF CONFORMITY G ENERAL INTRODUCTION………………………………………………………………………………..7 、 、 、 、 .......................... - Page 4 、 、 、 、 R EPLACEMENT OF PARTS………………………………………………………………………………30 ............................30 NTRODUCTION ......................31 EPALCEMENT OF THE AIR FILTER ....................32 EPLACEMENT OF THE INTERNAL ....................34 EPLACEMENT OF THE EXTERNAL ......................35 EPLACEMENT OF CONTROL BOARD ....................37 EPLACEMENT OF THE AUTO TRANSFORMER .....................
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Page 5: O Verview
Identification of the Unit All units have a silver type plate label, where all the important information about the specific unit can be found. Also the Dantherm address and phone numbers are printed here so the contact can be made on the site. -
Page 6: Declaration Of Conformity
Declaration of conformity Dantherm declares, meet 2002/95/EC.ROHS directive for mass production. This unit is in conformity with the following directives and standards: Directive Name / Area 98/37/EEC Safety of Machines 73/23/EEC Low Voltage 89/336/EEC Standard Name / Area EN 292... -
Page 7: G Eneral Introduction
2、 、 、 、 General introduction This section describes how the unit works, the cooling and control strategy. General description The unit is a mono block microprocessor controlled heat management system especially designed for heat management of electronic enclosures. The unit contains fans, compressor as well as an active cooling section. -
Page 8: Active Parts
2. Free cooling Under this mode, the ambient air will come into the cabinet through a filter to cool down the cabinet and the hot air generated by the cabinet’s components will forced to outside. Active parts The active parts are controlled by the control board. The controller will operate these elements mainly based on the temperature reading of the return air sensor. -
Page 9: Indicators
Indicators O n the front five LED’s will give an indication of the present status of the climate unit: 、 At the left a green LED, marked “Supply” is lit as soon as the controller is powered on. At this time an LED jingle is performed where all LED’s will be lit one by one. -
Page 10: Control Strategy
Control strategy 、 、 、 、 I nternal DC fan: The fan is always running at full speed once the 48VDC supplied (Active and Emergency Cooling Mode) 、 、 、 、 E xternal AC fan: The external fan starts together with the compressor, at the compressor set point (default is 35 ℃... - Page 11 4. Damper: For Energy Saving Mode, the damper will open when these temperature conditions are met: ★ ★ ★ ★ Return air temperature is above 18 ℃ Supply air temperature is above 15 ℃ Ambient air temperature must be 5 lower than return air temperature.
- Page 12 This illustration is showing the control strategies based on the default settings. Action Temperature Down Temperature Action ℃ ℃ sensor sensor Condenser Condenser sensor fan speed Condenser increased sensor to maxi- (around 2650RPM) Condenser fan speed Condenser Condenser decreased to sensor sensor medium...
- Page 13 Compressor off after 9 min- utes@5 drop ℃ below set point Return sensor Return sensor Damper opens after compres- sor stop @ effi- cient ambient temperature Compressor off in 9 min- utes@10 drop ℃ below set point Return sensor Return sensor Damper opens after compres- sor stop @ effi-...
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Page 14: O Ptional Components
This option is only recommendable if the climate unit situated in areas with a high concentration of humidity, salt, sand or pollution in the air. Please contact your local dealer or Dantherm Air Handling concerning guide lines for a specific situation. -
Page 15: Heater Kit
Heater kit(options) It is an 800W heater option, the heater is switched on when the return air temperature goes below the heater set point (default is 5 ℃ ) and off again 2 ℃ above this. The current consumption by the heater is monitored when switched on. Does the consumption fall below 3A, the heater is regarded as faulty and this will be signalized by the failure relays. -
Page 16: E Rror Handling
4、 、 、 、 Error handling Introduction The Dancon is equipped with three failure or relays give alarms depending on the severity of the fault. Warnings Warnings will not send out the alarm to the WSM. The alarm status LED will light up if an alarm, a fault or a warning occurs. A permanent lit alarm status LED will indicate a WARNING. -
Page 17: Alarms
Alarms Alarms will send out the alarm to the WSM detection through relay. A fast flashing fail LED (app. 2 Hz or 2 times per second), will indicate an alarm. The alarm situation will be initiated by the following incidences: T he internal DC fan is stopped----no rotational pulse. -
Page 18: D Escription Of Indicators, Controls And Connections
5、 、 、 、 Description of indicators, controls and connections Front panel This illustrates the front cover of the Dancon control board and its parts and functions: Part Function Supply Green LED indicates that the power is on Yellow LED indicates that the compressor Compressor is running Heater... -
Page 19: Control Board Layout
Control board layout This illustrates the control board and the position of the fuses, switches and the jumpers. Part Function Dipswitches Selecting unit No. Fuse, 6.3A TH Heater/ Compressor Fuse, 6.3A TH AC mains Fuse, 6.3A TH Internal DC fan 1 Fuse, 6.3A TH Internal DC fan 2 Fuse, 6.3A TH... -
Page 20: Rj11 Jack
RJ11 jack’s The 6 way RJ11 female RS485 parallel jack’s on the front panel can be used for DanLink (telemetry option), computer tests or DanView (display). The connections are shown in this table: Pin No. Function Logic GND Data B Data A Data A Data B... -
Page 21: Main Voltage
Main voltage This shows the connections to the high voltage connector on the control board: Pin No. Row Z Row D Internal fan 2 Not used Internal fan 1 External fan 1 Not used External fan 2 Auto transformer 230V Heater Auto transformer 180V Compressor crankcase heater... -
Page 22: Low Voltage
Low voltage This shows the connections to the low voltage connector on the control board: Pin No. Row Z Row B Row D Interconnection- Warning relay NC Fault relay NC Interconnection+ Warning relay common Fault relay common Damper supply 0 VDC Damper control Damper supply 24 VDC 40 VAC neutral... -
Page 23: M Ounting And Connecting
6、 、 、 、 Mounting and connecting Introduction This section is describes in the details how to mount and connect the unit. Unpacking This unit is delivered in a wooden box wrapped in a plastic bag. Tools: Hammer Cutting pliers 23 of 53... -
Page 24: How To Mounting The Unit
How to mounting the unit To lead the airstreams correctly and mount the unit effectively, it needs make a hole and set screws or mounting holes on the telecom cabinet’s door with following dimensions. All the measurements are made in millimetres. The unit must keep in an upright position, and the mounting angle must ≤... -
Page 25: How To Connect The Unit
Warning: IP55 is guaranteed for Dantherm A/C and please make sure the marked area being glued when installing the unit. Any leakage caused by no glue in the marked area, is beyond Dantherm’s responsibility. - Page 26 Mains supply: Warning 1 phase AC supply o peration voltage range should be between 198-240V, if exceed this ： ： ： ： （ （ （ （ range, the compressor can not starting normally, the compressor running a long period of non- normal voltage range, may be can caused the compressor damaged ）...
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Page 27: P Reventive Maintenance
7、 、 、 、 Preventive maintenance Purpose The purpose of the following instruction is to guide you through how to clean and maintain an A/C. Description The air conditioner cleaning and maintenance is the key to help the air conditioner improve the cooling capacity, improve life time, higher energy saving, and better performance. -
Page 28: Procedure
Procedure Cut off the power supply. Take air conditioning off from the cabinet door or side. ， ， ， ， M echanical Cleaning （ （ （ （ r ecommended cleaning method ） ） ） ） Open the units cover, use a vacuum cleaner very careful clean-up the dust. - Page 29 ， ， ， ， L iquid Cleaning Open the units cover, use CNHR-60 cleaning agent sprayed evenly on the surface of the con- denser and evaporator fins, condenser fan, air duct; five minutes later, then use the low pres- sure water to rinse them. Note: before you carry out liquid cleaning, you should remove the evaporator fan and PCB.
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Page 30: R Eplacement Of Parts
8、 、 、 、 Replacement of parts Introduction This is parts covered in this manual: A ir filter 、 I nternal DC fan 、 E xternal AC fan 、 C ontrol board 、 A uto transformer 、 D amper motor 、... -
Page 31: Repalcement Of The Air Filter
Repalcement of the air filter This section describes the replacement of the air filter. The filter is used for filtering the dust and dirt from the ambient air when using free cooling. When to replace Option 1: combine unit with energy saving mode The filter must be replaced with a maximum of 6 months (normally air quality location) or 2 months (bad air quality location) interval. -
Page 32: Replacement Of The Internal Dc Fan
Follow these steps to replace the air filter: Step Action Switch off power Unscrews the 12 Torx screws holding the back cover in place Loose the toggle clamp which fix the air filter Remove the old air filter, and then put the new one in place. Note: the arrow indicating the air flow on the filter, or let the green side towards out Remount the back cover... - Page 33 Front Cover Upside Cover Back Cover Internal fan Box Follow these steps to replace the internal fan: Step Action Switch off all powers of unit Unscrew the 13-M4 nuts on the two side flanges and top flange, then remove them Move the whole front cover together Unscrew the 12-M4 torx screws on the back cover, and then remove the cover...
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Page 34: Replacement Of The External Ac Fan
Replacement of the external AC fan The purpose of the external AC fan is to surplus heat from the condenser when the active cooling is active. When to replace The external fan only needs to be replaced when it is faulty. Before you start make sure that you have the following available: A Torx 20 screwdriver A 7# spanner... -
Page 35: Replacement Of Control Board
Follow these steps to replace the external fan: Step Action Switch off all powers of the unit Unscrew the 13-M4 nuts on the two side flanges and top flange, and remove them Remove the front cover Disconnect the external fan from the power supply Unscrew 6 torx screws which fixed the external fan bracket. - Page 36 Control Box Back Cover Follow these steps to replace the control board: Step Action Switch off all powers of the unit Unscrews the 12 torx screws holding the back cover in place and re- move them Unscrew 1 torx screw which fixed the controller Pull the 2 with plastic tabs out and press them away from the centre of control board, the control board now can be removed Check if the E-PROM is the right version before mounting it on the new...
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Page 37: Replacement Of The Auto Transformer
Replacement of the auto transformer The following is detailed description on how to replace the auto transformer. When to replace The auto transformer only needs to be replaced when it is faulty. Before you start Before you start make sure that you have the following available: A Torx 20 screwdriver A 7# spanner A new auto transformer, see “spare parts”... - Page 38 Follow these steps to replace the auto transformer: Step Action Switch off all powers of the unit Unscrew the 6-M4 nuts on the two side flanges, and remove them Unscrew the 7-M4 torx screws on the back down cover, and then remove the back down cover Caution: the power cable linked on the connector Unplug all the connectors, Unscrew the 4-M4 nuts which fix the auto...
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Page 39: Replacement Of The Damper Motor
Replacement of the damper motor The damper motor keeps the damper in the right position according to the signals from the control board. This is done in order to use the ambient air for cooling. When to replace The damper motor only needs to be replaced when it is faulty. The typical faulty would be that the damper does not move at all. -
Page 40: Replacement Of The Heater ( Option )
Follow these steps to replace the damper motor: Step Action Switch off all the powers of the unit Unscrew the 13-M4 nuts on the two side flanges and top flange, and remove the front cover Unscrew the 12-M4 torx screws on the back cover and then remove the back cover Unscrew the 13-M4 torx screws on the upside cover and then remove the cover... - Page 41 Heater Back Cover Follow these steps to replace the heater element: Step Action Switch off all powers of the unit Unscrews the 12 torx screws holding the back cover in place and re- move them Unplug the heater connectors Unscrew 2 nuts which fixed the heater on its bracket Use the new heater replace the old one, mount it again Mount the back cover again Switch on power...
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Page 42: Replacement Of Pressure Switch ( Option )
Replacement of filter blockage detection kit (option) The filter blockage detection kit is to detect the air filter whether it was blocked. When to replace The filter blockage detection kit only needs to be replaced when it is faulty. The typical faulty would be that it is not act even if the set point is lower than 80Pa. -
Page 43: Replacement Of Humidity Detector (Option)
Follow these steps to replace the filter blockage detection fit: Step Action Switch off all powers of the unit Unscrews the 12 torx screws holding the back cover in place and re- move them Unscrew the 9-M4 nuts on the side and top flange which fixed the up- side cover Unscrew the 13-M4 torx screws on the upside cover and then remove the upside cover... - Page 44 Humidity Detector Air Duct Mesh Grid Follow these steps to replace the humidity detector: Step Action Switch off all powers of the unit Take off the air duct mesh grid Use a straight screwdriver to take off the detector’s white cover Unscrew the 2-M4 nuts which fixed the humidity detector on the sheet metal.
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Page 45: Pecifications
9、 、 、 、 Specifications This section contains the specifications of this unit. Further details can be obtained be contacting Dantherm. Electrical data Performance: Ambient/return = 35 ° ° ° ° C / 35 ° ° ° ° C Specification... -
Page 46: Performance Data
Performance data Performance: Ambient/return = 35 ° ° ° ° C / 35 ° ° ° ° C Specification Value Unit Description Active cooling capacity 2000(50Hz) Include osmotic heat and solar gain 2300(60Hz) Include osmotic heat and solar gain T est Condition: Ambi- （... -
Page 47: Performance Curves
Performance curves F r e e c o o l i n g 2 0 0 0 W C o o l i n g c a p a c i t y F r e e c o o l i n g 2 0 0 0 W C o o l i n g c a p a c i t y F r e e c o o l i n g 2 0 0 0 W C o o l i n g c a p a c i t y F r e e c o o l i n g 2 0 0 0 W C o o l i n g c a p a c i t y 3 4 0 0... -
Page 48: Ecycling Of The Unit
10、 、 、 、 Recycling of the unit Introduction This air conditioner is designed to last for a number of years. When the time comes for the unit to be recycled, the following precautions should be taken to protect our environment. Please note that the guidelines are general----local rules and procedures may overrule these guide- lines and should be observed and followed carefully. -
Page 49: Pare Part
11、 、 、 、 Spare part This section contains the Dantherm spare part number’s to use when ordering replacement spare parts. Dantherm part No. Description Picture 213506 Air filter 040182 Internal DC fan 182189 External AC fan 1 82361 1 82361----anti-salt fog （... - Page 50 Dantherm part No. Description Picture 182207 800W heater (option) 215096 Filter blockage detection kit (option) 214614 Humidity detector (option) 50 of 53...
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Page 51: Ppendix
12、 、 、 、 Appendix Dimension 51 of 53... -
Page 52: Wiring Diagram
Wiring diagram 52 of 53... -
Page 53: Otline Help
13、 、 、 、 Hotline help The service department of Dantherm is ready to help in case of a problem. Please help yourself and us by having the following information’s prepared before making the call. Your name: Company name: Country: Site/Location: Phone No.:...
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