Compressor Overheat Protection; Current Safe - Mitsubishi Heavy Industries SCM50ZS-S1 Technical Manual

(10) Compressor overheat protection

(a) Purpose
(b) Detail of operation
(i)
(Example) Fuzzy
(4) Lower limit speed
Model
Model
Model
Lower limit speed
Lower limit speed
Lower limit speed
(ii)
(ii)

(11) Current safe

(11) Current safe
(a) Purpose
(a) Purpose
(b) Detail of operation
(b) Detail of operation
(i)
(i)
(ii)
(ii)
(c) Current safe control value
Set this using the jumper wire (J1 or J2) on the outdoor PCB. Control starts when it exceeds the control value.
1) Switching with jumper wire
Jumper wire (J1)
2) Control value
Model
SCM50
SCM60
95
Discharge pipe temperature (˚C)
95 105
Item
Cooling
Item
SCM40, 45, 50
Item
SCM40, 45, 50
SCM60, 71, 80
SCM50
SCM60, 71, 80
SCM100, 125 SCM60
SCM100, 125
115
115
Short-circuit (At shipping from factory)
Open
Current safe ① Current safe ②
Cooling Heating Cooling
10.0 12.0 10.0
11.0 14.0 10.0
Tho-D
3 minutes
3 minutes
3 minutes
105
105 115
95 105
Heating
Cooling Heating
32 rps 32 rps
Cooling Heating
32 rps 32 rps
25 rps 32 rps
32 rps 32 rps
25 rps 32 rps
25 rps 32 rps
20 rps 22 rps
20 rps 22 rps
Jumper wire (J2)
Short-circuit
(At shipping from factory)
Current safe ①
Current safe ③
Current safe ③
Heating Cooling
10.0 7.5
10.0 7.5
190
- -
'18 • SCM-T-251
115
3 minutes
3 minutes
Short-circuit
Current safe ②
Current safe ③
Unit: A
Heating
7.5
7.5