Polar Air POLAR Global CHV2-01-P, Инструкция по установке, эксплуатации и обслуживанию

Страница: 40 / 67

Page 39 of 65
PG2021 CHV2-VP-ECM-V2
2-pipe Control Logic -With 6-way modulating Valve Configuration
COOL MODE
When unit is turned on in cooling mode.
If Tr ≥ Ts + 1ºC (Modbus 300033 setting), MTV1 is turned on. AUX1 is closed. Fan is turned on at setting speed.
DA2 is turned on at 0 VDC for 2 minutes, then check Ti1:

When
Ti1<=8ºC, DA2 output is based on water temperature difference (Ti1/Ti2) and Modbus parameter 300027 setting
PID calculation. The output is 4~0 VDC.

When 8<Ti1<=10ºC, DA2 output is based on water temperature difference (Ti1/Ti2) and Modbus parameter 300027
setting minus 1 PID calculation. The output is 4~0 VDC.

When 10 <Ti1<=12ºC, DA2 output is based on water temperature difference (Ti1/Ti2) and Modbus parameter 300027
setting minus 2 PID calculation. The output is 4~0 VDC.

When 12<Ti1<=15ºC, DA2 output is based on water temperature difference (Ti1/Ti2) and Modbus parameter
300027 setting minus 3 PID calculation. The output is 4~0 VDC.

When 15<Ti1<=28ºC (Modbus 300017 setting), DA2 output is kept at 0 VDC.

When Ti1>28ºC (Modbus 300017 setting), DA2 output is 4 VDC. and report pre-heat alarm.

If Tr < Ts- 1ºC (Modbus 300033 setting), then cool operation is terminated and MTV1 and AUX1 are turned off. Indoor
fan runs at set speed. DA2 output is 5 VDC.

When unit is turned off, MTV1 and AUX1 are off. DA2 is 5 VDC. Fan is turned off delaying 30s.

The range of Ts is 16 - 30ºC

Indoor fan speed can be adjusted to low, medium, high and auto.
LOW TEMPERATURE PROTECTION OF INDOOR COIL IN COOLING MODE
If Ti1 ≦ 2 ºC for 2 minutes

MTV1 is turned off.

DA2 is set to 5 VDC.

Indoor fan is turned on to Medium speed if fan runs at low speed.
If Ti1
≧
5ºC for 2 minutes

MTV1 is turned on.

DA2 is set to original status.

Indoor fan is changed to setting speed.
FAN MODE
Indoor fan speed can be adjusted for low, medium and high. If fan speed is set auto by Modbus, fan is running at low speed.
HEAT MODE
Without Electrical Heater
（
Modbus300047=0
）
When unit is turned on in heating mode.
When Tr ≤ Ts - 1 ºC (Modbus 300033 setting), MTV2 and AUX2 is turned on. DA2 is at 10 VDC for 2 minutes, then check Ti1:

If Ti1 < 28ºC (Modbus 300017 setting), fan is turned on at low speed. DA2 is at 10 VDC.

If 28ºC<Ti1< 28
（
Modbus 300017 setting
）
+4ºC, fan is on at original state. DA2 is at original state.

If Ti1 ≥ 28
（
Modbus 300017 setting
）
+4ºC, fan is on at setting speed. DA2 output is based on water temperature
difference (Ti1/Ti2) and Modbus parameter 300028 setting PID calculation. The output is 6~10 VDC.

If Ti1 sensor is damaged, fan runs at setting speed.

When Tr > Ts + 1ºC (Modbus 300033 setting), MTV1 and AUX2 is turned off. DA3 is at 5 VDC. fan is turned on at lowest
speed.

When unit is turned off, MTV1 and AUX2 is turned off. DA2 is at 5 VDC. Fan is turned off delaying 2 minutes.
Cooke Industries - Phone: +64 9 579 2185 Email: sales@cookeindustries.co.nz Web: www.cookeindustries.co.nz