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Summary of Contents for GCHV GCHV-E252W/ZR1
- Page 1 Full DC Inverter CHV System Control System Technical Support Division 2020-11-21 GD CHIGO HEATING & VENTILATION EQUIPMENT CO., LTD.
- Page 2 Full DC Inverter CHV System - Control System Content 1. Outdoor Unit PCB 2. Communication System 3. Controllers GD CHIGO HEATING & VENTILATION EQUIPMENT CO., LTD.
- Page 3 Full DC Inverter CHV System - Control System 1. Outdoor unit PCB 1.1 Outdoor unit PCB outlook Content Content Module board communication port Port for communication between ODUs Input port for system high pressure Output port for fan motor relay Input port for ambient temperature Output port for EXV1 and EXV2 Input port for condenser coil temperature...
- Page 4 Full DC Inverter CHV System - Control System Port for inlet temperature sensor of plate heat exchanger 1.2 Dial codes definition Parameter setting for night time silent operation After 6 hours of daytime After 8 hours of daytime After 6 hours of daytime After 8 hours of daytime peak temperature, night peak temperature, night...
- Page 5 Full DC Inverter CHV System - Control System Outdoor fan ESP setting Standard Low static Middle High static Super-high High- Meaning static pressure static pressure static Silence Ultra-silence silence pressure pressure pressure Demonstration (Default setting) Outdoor unit address setting Meaning Master unit Slave unit 1 Slave unit 2...
- Page 6 Full DC Inverter CHV System - Control System Demonstration (Default setting) Remarks When automatically addressing is OFF, user need to set indoor unit address manually by wired controller. Operation mode restriction setting VIP priority and Meaning Auto priority Heating priority Cooling priority Heating only Cooling only...
- Page 7 Full DC Inverter CHV System - Control System 1.3 Spot check parameters Content Remarks Quantity of indoor units which can be Displays when system standby communication with outdoor unit Inverter compressor frequency Displays when system is running Outdoor unit’s address 0(master unit), 1(slave unit 1), 2(slave unit 2), 3(slave unit3) Outdoor unit capacity 0~F, (according to SW11)
- Page 8 Full DC Inverter CHV System - Control System Secondary side current of inverter Display in actual value (A) compressor A Secondary side current of inverter Display in actual value (A) compressor B AC voltage Actual value (V) DC bus line voltage of compressor A Actual value=Display value*4 (V) DC bus line voltage of compressor B Actual value=Display value*4 (V)
- Page 9 Full DC Inverter CHV System - Control System 1.4 Outdoor unit error code table Code Malfunction or protection remark Outdoor unit communication malfunction Only slaver unit displays Phase sequence malfunction Communication between master outdoor unit and indoor units Discharge temperature sensor fault Ambient temperature sensor malfunction T6A temperature sensor fault Outdoor heat exchanger temperature sensor malfunction...
- Page 10 Full DC Inverter CHV System - Control System Fault or protect definition A moment before and after the speed change >15Hz Set speed and the actual speed difference >15Hz Note: X stands for which system, 1 is system A, 2 is system B. 1.5 Some parameters setting 1.
- Page 11 Full DC Inverter CHV System - Control System Electric wiring installations 1.3.1 Highlights of electrical installation Please separately design the special power of indoor units and outdoor units. The power adopts special circuit, and installs circuit breaker and manual switch. The indoor units’...
- Page 12 Outdoor unit power wiring selection Separate Power Supply without power facility. The shortest wiring diameter (mm Manual switch (A) Model Power supply Circuit breaker ≤20m ≤50m Capacity Fuse GCHV-E252W/ZR1 4×6 4×10 <100mA, 0.1sec GCHV-E280W/ZR1 4×6 4×10 <100mA, 0.1sec GCHV-E335W/ZR1 4×6 4×10 <100mA, 0.1sec...
- Page 13 Full DC Inverter CHV System - Control System Outdoor unit Manual Leakage power supply switch protector 380-415V 3N~ 50Hz Leakage protector Manual Outdoor unit switch Outdoor unit Outdoor unit Branch box Outdoor unit Case 2: Power facilities 1 Outdoor unit (with leakage protector) Outdoor unit Leakage...
- Page 14 Full DC Inverter CHV System - Control System If outdoor unit quantity > 5, there will be 2 electric control boxes, the wire (b) diameter selection depends on the total horse power (HP) of outdoor units connecting to each electric control box (See (5)). Select the capacity of manual switch and fuse of the branch box depends on the total horsepower (HP).
- Page 15 Full DC Inverter CHV System - Control System Note: ⚫ Set refrigerant piping system, signal wires between indoor-indoor unit, and that between outdoor-outdoor units into one system. ⚫ Please do not put the signal wire and power wire in the same wire tube; keep distance between the two tubes. (Current capacity of power supply: less than 10A--300mm, less than 50A--500mm.) ⚫...
- Page 16 Full DC Inverter CHV System - Control System 2. Communication system 2.1 Control system introduction 2.1.1 Connecting highlights of control line (RS-485 communication) The control line should be shielded wire (wire diameter of the core wire≥0.75 mm ). Using other wiring shall create signal interference, thus leading to error operation.
- Page 17 Full DC Inverter CHV System - Control System Signal line shall adopt 2-core shielded wire with an area above 0.75 mm , the 2 cores are connected to P, Q or H1,H2 terminals, the shielded layer are connected to E terminals. GD CHIGO HEATING &...
- Page 18 Full DC Inverter CHV System - Control System Main power Supply (380V~415V/3PH/50Hz) L1 L2 L3 N L1 L2 L3 N Outdoor unit power cable Power Indoor unit power cable distributor Outdoor unit (Master) Outdoor unit (Slave) Outdoor unit (Slave) H1 H2 E P Q E H1 H2 E P Q E H1 H2 E P Q E A B C N...
- Page 19 Full DC Inverter CHV System - Control System 2.1.4 Correct connection Note: Shielded layer should be connected to steel pane of electrical control box. 2.1.5 Typical wrong connection Loop connection of signal wire Star connection of signal wire Star connection of part signal wires Star connection of all signal wires GD CHIGO HEATING &...
- Page 20 Full DC Inverter CHV System - Control System Reverse connection of signal wire Outdoor unit to indoor unit Indoor unit to indoor unit GD CHIGO HEATING & VENTILATION EQUIPMENT CO., LTD.
- Page 21 Full DC Inverter CHV System - Control System 3. Controllers 3.1 Wireless remote controller The model of the following remote controller is NT-03 common remote controller Mode Temperature addition Select modes, including automatic, cooling, dehumidification, fan and Increase the setting temperature. heating mode.
- Page 22 Full DC Inverter CHV System - Control System 1）The remote controller is equipped with 15 buttons, and the LCD is newly made. All the icons are kept in touch with the touch-screen remote controller. 2）At the first power on, the LCD of the remote controller displays all the icons first and then enters the standby state, displaying only the clock 12:00 and the light icon.
- Page 23 Full DC Inverter CHV System - Control System Button function of remote controller （1） ON/OFF ① When pressing this key, the remote controller switches by "on, off, on" circularly. ② When the first power on, the working state is set by default: setting temperature 25℃ (77℉), automatic mode, automatic fan speed, internal and external pendulum wind, no TURBO, no sleep, no timer, no lock).
- Page 24 Full DC Inverter CHV System - Control System ② Pressing this key in the other modes, the wind speed switches by "automatic wind speed, low speed, middle speed, high speed, automatic wind speed " circularly. （9） Timer ① Under the shutdown state, press this key to set the opening time, range from 1 hour to 24 hour. ②...
- Page 25 Full DC Inverter CHV System - Control System fourth gear wind will be "middle wind"; the fifth and sixth gear wind will be "high wind". （17） Combinatorial key: “Mode” ＋ “Lock” ① Enter address setting On the shutdown interface, press the combinatorial key on the remote controller for 5 seconds to enter the address setting interface.
- Page 26 Full DC Inverter CHV System - Control System 16~31 flashing quiet 32~47 steady sound 48~63 flashing sound 3.2 Wired controller 3.2.1 The remote control board is responsible for the operational status of the system through the control button, through the LCD to display the working status of the whole system, responsible for system control board for communication 3.2.2 Safety precautions: Please read this safety precaution carefully, before installation.
- Page 27 Full DC Inverter CHV System - Control System Do not install it in a place with oil, steam or sculpture gas, or else deform or malfunction may occur. Wire controller installation notice: ⚫ Please refer to indoor unit installation manual for connecting between wire controller and indoor unit. ⚫...
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