Mitsubishi Electric PQHY-P72ZLMU-A Service Handbook page 159

[ VII Control ]
Operation mode
Model
PQRY
P144- Cooling-
P192 only
models Cooling-
main
Cooling-
only
Heating-
only
Heating-
main
*1 Solenoid valve SV7c may open to increase the refrigerant flow to the heat exchanger.
HWE15150
Operation
pattern
PQHY SV4a
1 OFF
2 OFF
3 OFF
4 OFF
5 OFF
6 OFF
7 OFF
8 OFF
9 OFF
10 OFF
11 OFF
12 OFF
-
13 OFF
14 OFF
15 OFF
16 OFF
17 OFF
18 OFF
19 OFF
20 OFF
21 OFF
22 OFF
23 OFF
24 OFF
Cooling OFF
25
Heating OFF
1
Solenoid valve
SV4b SV4d SV7a SV7b
ON ON ON ON
ON ON ON OFF
ON ON ON OFF
ON ON OFF OFF
ON OFF OFF ON
OFF ON ON ON
OFF ON ON ON
OFF ON OFF ON
OFF ON ON OFF
OFF ON ON OFF
OFF ON OFF OFF
OFF ON OFF OFF
OFF OFF ON ON
OFF OFF OFF ON
OFF OFF OFF ON
OFF OFF ON OFF
OFF OFF ON OFF
OFF OFF ON OFF
OFF OFF ON OFF
OFF OFF ON OFF
OFF OFF ON OFF
OFF OFF ON OFF
OFF OFF ON OFF
OFF OFF ON OFF
OFF OFF OFF OFF
OFF OFF OFF OFF
- 150 -
LEV
LEV6 LEV7
41 pulses 41-3000 pulses
*1
(SV7c )
41-3000 pulses PQRY:
41 pulses
(SV7c: OFF)
PQHY:
3000 pulses
(SV7c: ON)
GB