[
VII
Control ]
- 108 -
HWE1113B
GB
Water rate valve control
-3- Water flow rate valve control
Depending on the capacity required, periodic control is performed every one minute to keep the temperature difference be-
tween the heat exchanger outlet pipe temperature and indoor unit port pipe temperature within 4.0ºC for cooling and 4.5ºC for
heating, and the opening is controlled in the range between 85 and 950 pulses.
For the degree of valve opening, "0" indicates fully open and "1600" indicates fully closed.
3-way valve control
-4- 3-way valve control
The following table shows the control pattern of the 3-way valve in different operation modes to switch the water flow.
(1) Cooling-only Thermo-ON, Cooling-only Thermo-OFF, and Cooling-only test run
(2) Heating-only Thermo-ON and Heating-only Thermo-OFF
(3) Heating-main Thermo-ON, Heating-main Thermo-OFF, Cooling-main Thermo-ON and Cooling-main Thermo-OFF
Outdoor unit operation mode
Connected indoor unit
operation mode
MV1 command value
for opening
MV2 command value
for opening
Cooling-only Thermo-ON
Stop
1
1
Fan
1
1
Thermo-ON
2
2
Thermo-OFF
2
2
Cooling-only Thermo-OFF
Stop
1
1
Fan
1
1
Thermo-OFF
2
2
Cooling-only test run
Stop
1
1
Fan
1
1
Thermo-ON
2
2
Thermo-OFF
2
2
Outdoor unit operation mode
Connected indoor unit
operation mode
MV1 command value
for opening
MV2 command value
for opening
Heating-only Thermo-ON
Stop
1
1
Fan
1
1
Thermo-ON
2
2
Thermo-OFF
2
2
Heating-only Thermo-OFF
Stop
1
1
Fan
1
1
Thermo-OFF
2
2
Outdoor unit operation mode
Connected indoor unit
operation mode
MV1 command value
for opening
MV2 command value
for opening
Heating-main Thermo-ON
Cooling-main Thermo-ON
Stop
1
1
Fan
1
1
Cooling Thermo-ON
0
0
Cooling Thermo-OFF
0
0
Heating Thermo-ON
1
1
Heating Thermo-OFF
1
1
Heating-main Thermo-OFF
Cooling-main Thermo-OFF
Stop
1
1
Fan
1
1
Cooling Thermo-OFF
0
0
Heating Thermo-OFF
1
1
Summary of Contents for City Multi CMB-WP108V-G
Page 1: ...AIR CONDITIONER 2014 Service Handbook PURY WP200 WP250YJM A CMB WP108V G Model 3rd edition ...
Page 11: ... 2 HWE1113B GB ...
Page 27: ... I Read Before Servicing 18 HWE1113B GB ...
Page 29: ... 20 HWE1113B GB ...
Page 57: ... 48 HWE1113B GB ...
Page 70: ... III Outdoor Unit Components 61 HWE1113B GB 2 Power supply circuit board ...
Page 71: ... III Outdoor Unit Components 62 HWE1113B GB ...
Page 73: ... 64 HWE1113B GB ...
Page 81: ... IV Remote Controller 72 HWE1113B GB ...
Page 83: ... 74 HWE1113B GB ...
Page 89: ... 80 HWE1113B GB ...
Page 97: ... 88 HWE1113B GB ...
Page 127: ... 118 HWE1113B GB ...
Page 135: ... VIII Test Run Mode 126 HWE1113B GB ...
Page 137: ... 128 HWE1113B GB ...
Page 253: ... 244 HWE1113B GB ...