Mitsubishi Heavy Industries SCM71ZM-S1 Technical Manual page 201

2) Control value
Model
SCM71, 80ZM - S1
(12) Current cut
(a) Purpose:
(b) Detail of operation:
(13) Outdoor unit failure
compressor command
(14) Discharge pipe sensor disconnection protection control
(23) Indoor fan motor protection
(a) When the compressor command speed is other than 0 rps.
(i) Tho-D(10)-Tho-D(0) < 8 °C, and Tho-D(10)-Tho-A(10) < 5 °C
The compressor command speed is set on A rps for 5 minutes. After 5 minutes, the compressor command speed is set
on B rps for 5 minutes.
(ii) Tho-D(20)-Tho-D(15) < 5 °C :
The compressor command speed is set on 0 rps.
Notes (1) Tho-D(X): After compressor operation, the discharge pipe temperature sensor after X minutes.
(2) Tho-A(X): After compressor operation, the outdoor air temperature sensor after X minutes.
(b) Once the unit is stopped by this function, it is not restarted.
• Values of A, B
Model
SCM71ZM-S1
A
B
Note (1) When the jumper wire (J32) on the outdoor unit sub-PCB is short-circuited (factory default), this control is performed only at initial operation after turn-
ing the power source on. If the jumper wire (J32) is open, this control is not performed.
Current safe ①
Cooling Heating
13.0 16.0
SCM80ZM-S1
20 rps 20 rps
60 rps 60 rps
Current safe ②
Cooling Heating
10.0 10.0
200
- -
'17 • SCM-T-225
Unit: A
Current safe ③
Cooling Heating
7.5 7.5
-
(SRF:150)
300