Mitsubishi Heavy Industries V Multi FDC71VNX Technical Manual page 123

a)
Outdoor air temperature > 10˚C
Outdoor air temperature < = 10˚C
a)
b)
b)
21°C -38°C
40
c)
c)
40
3) Reset conditions
3) Reset conditions:
a)
a)
b)
b)
(b)
Heating
1) Operating conditions
(ii)
Heating
1) Operating conditions:
2) Detail of operation
2) Detail of operation:
3) Reset conditions
3) Reset conditions:
a)
a)
b)
b)
(16) Refrigeration cycle system protection
(16) Refrigeration cycle system protection
(a) Starting conditions
(a) Starting conditions
1)
When 5 minutes have elapsed after the compressor ON or the completion of the defrost operation.
1)
When A minutes have elapsed after the compressor ON or the completion of the defrost operation
2)
Other than the defrost operation.
2)
Other than the defrost operation
3)
When, after satisfying the conditions of 1) and 2) above, the compressor speed, indoor temperature (Thi-A) and indoor
3)
When, after satisfying the conditions of 1) and 2) above, the compressor speed, indoor air temperature (Thi-A)
heat exchanger temperature (Thi-R) have satisfied the conditions in the following table for 5 minutes.
and indoor heat exchanger temperature (Thi-R) have satisfied the conditions in the following table for 5 minutes:
Operation mode
Operation mode
Cooling
Cooling
Heating
Heating
Note (1) Except that the fan speed is HI in heating operation.
Note (1) Except that the fan speed is Hi in heating operation and silent mode control.
(ii) Contents of control
(b) Contents of control
1)
When the conditions of (i) above are satisfied , the compressor stops.
1)
When the conditions of (i) above are satisfied, the compressor stops.
2) Error stop occurs when the compressor has stopped 3 times within 60 minutes.
2)
Error stop occurs when the compressor has stopped 3 times within 60 minutes.
(iii) Reset condition
(c) Reset condition
When the compressor has been turned OFF
When the compressor has been turned OFF.
(t) Service valve (gas side) closing operation
(i) Starting conditions
1) Operation mode : Heating
2) Compressor conditions : OFF
(ii) Contents control
If the output current of inverter exceeds the specifications, it makes the compressor stopping.
(iii) Anomalous stop control
1) If the inverter output current value excceds the setting value within 80 seconds the compressor stops.
2) After 3 minutes delay. the compressor restarts, but if this anomaly occurs 2 times within 20 minutes after
this initial detection.
Outdoor fan
Lower limit fan speed
Outdoor temperature > 16˚C
Outdoor temperature < = 16˚C
24
8th (model71 : 7th)
5
Compressor speed (N)
A Compressor speed (N)
5 40 N
50 N < =
50 N < =
(1)
9 40 N
(1)
ON
-
Outdoor fan
40
40
.
4
3
2 at each 20 seconds
6
Indoor temperature (Th1)/
Indoor temperature (Thi-A)
Room temperature (Thi ) (Thi-A
Indoor heat exchanger temperature (Th2)
10 Thi-A 40
10 Th1 40 < = < =
0 Th1 40 < = < =
0 Thi-A 40
122
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'19 • PAC-T-327
Room temperature (Thi-A )/
Indoor heat exchanger temperature (Thi-R)
Thi-A−4<Thi-R
Th1−4<Th2
Th2<Th1+6
Thi-R<Thi-A+ 4
-
-