SYSCONTROL AHU GB Control unit for DX AHU INSTALLATION & OWNER MANUAL
CONTENTS PAGE PRECAUTIONS....................................................................................... 1 INSTALLATION INFORMATION................................................................ 2 ATTACHED FITTINGS.............................................................................. 3 INSTALLATION METHOD&DIMENSION................................................... 4 MATERIAL AND SIZE OF THE PIPING..................................................... 5 ELECTRICAL WIRING...................
If the refrigerant leaks during installation, ventilate the area immediately. Toxic gas may be produced if the refrigerant comes into the place contacting with fire. After completing the installation work, check that the refrigerant does not leak. Toxic gas may be produced if the refrigerant leaks into the room and comes into contact with a source of fire, such as a fan heater, stove or cooker. CAUTION Ground the air conditioner.
3. ATTACHED FITTINGS Please check whether the following fittings are of full scope. If there are some spare fittings , please restore them carefully. Table.3-1 NAME QUANTITY SHAPE 1. Installation&owner’s manual 1 2. Wire controller 1 3. Wire controller installation&owner’s manual manual 2 4. Wire controller connecting wire group B A D C FUNCTION Wire control the air-conditioner 1 Receive signal 6. Screw ST3.9x25 8 Secure the installation board 7. Plastic expanded tube 8 8. Temp.
4. INSTALLATION METHOD & DIMENSION AHU 5HP AHU 10HP AHU 20HP Units: mm Wire passing-hole Connect to indoor unit Connect to outdoor unit Install vertically Installation method : Hanging Fig.4-1 Wrong installation way Fig.4-2 NOTE 1 2 3 4 5 The controller box can not installation in outdoor occasions,if inevitable,it must increase rainproof precautions,specific methods please contact the local dealar or technical support engineer. As hanging installation please use Screw ST3.9x25 for installation.
5. MATERIAL AND SIZE OF THE PIPING CAUTION The air-gap notch in the circuit breaker is used for insulating the flexible conductor, so that must respond to the related national CAUTION wire requests to connect to the fixed circuit. 1 The connecting distance of control box and indoor unit should not more than 8 m. 2 This control box can only connect to R410A refrigerant system. 3 This control box can only connect to VRF system. 4 This control box can not connect heat recovery system.
6-3 Electric control box wiring figure Indoor temp sensor (T1), indoor evaporator intermediate temp sensor (T2), indoor evaporator outlet temp sensor (T2B), please connects respond to the wiring nameplate. T2C T1 T2B T2 T2 T1 T2B Connector Fig.
7. APPLICALTION CONTROL 7-1 Application control Set the PCB code of the indoor unit electric control box by different usage. After setting, be sure to turn off the total power switch and then switch on. The setting function can not be carried out if not to turn off the total power switch and then switch on (Fig.7-1). 78 DE BC 3 4 56 B C D ENC1 E 9A Fig.7-1 F ● Function specification: ENC1——Cooling capacity setting, set the cooling capacity of this machine (Table. 7-1). Table.
Table.7-8 Table.
8. TROUBLE SHOOTING Table.8-1 NO. Type 1 Alarm Contents LED Display No address Error code “FE” M-home not matched 2 Alarm When connects to MS device 3 Alarm Mode conflict Remarks Recover to normal displayuntil finish setting address Error code “H0 ” Error code “E0” After the malfunctions disappear, it restores automatically. 4 Indoor/outdoor unit Malfun- communication ction is abnormal. 5 The evaporator sensor check Error code Malfun- point is abnoma “E2,E3 or E4” or room temp.
SYSCONTROL AHU_IOM EN April 2014 202000172202(MD12IU027AW)
