Mitsubishi Heavy Industries SCM71ZM-S1 - (12) Current cut; (13) Outdoor unit failure; (14) Discharge pipe sensor disconnection protection control

2) Control value
Model
Current safe
①
Current safe
②
Current safe
③
Cooling Heating Cooling Heating Cooling Heating
SCM71, 80ZM - S1
13.0 16.0 10.0 10.0 7.5 7.5
Unit: A
(14) Discharge pipe sensor disconnection protection control
(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.
(b) Once the unit is stopped by this function, it is not restarted.
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.
• Values of A, B
Model
A
B
20 rps
60 rps
SCM80ZM-S1
20 rps
60 rps
SCM71ZM-S1
(12) Current cut
(a) Purpose:
(b) Detail of operation:
(13)
Outdoor unit failure
(23) Indoor fan motor protection
compressor command
(SRF:150)
300
-
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.
-
200
-
'17 • SCM-T-225