Heating Overload Protective Control - Mitsubishi Heavy Industries SCM50ZS-W Service Manual

(5) Heating overload protective control

(a) Operating conditions
(b) Detail of operation
(i)
(ii)
(iii)
B or D.
(c) Reset conditions
OFF
8
Outdoor air temperature
Item
Comperssor speed
(6) Heating low outdoor temperature protective control
(a) Operating conditions
(b) Detail of operation
ON3
-10
(c) Reset conditions
(i)
(ii)
10
Tho-A
B or D
Tho-A
Upper limit C
Lower limit D
A
Upper limit
B
Lower limit
10 16 17
(°C)
A
90
Tho-A -2
ON2
ON1
-8 -5 -3 -2
Outdoor air temperature (°C)
Tho-A
0
A or C
B or D
when the thermostat OFF, the speed is
8
.
Range 2
21
Indoor air temperature (°C)
B
C
1 2
30 Release 75
lower
Item
Compressor speed
OFF
0
69
- -
'19 • SCM-SM-281
Range 1
23
Unit: rps
D
30
Unit: rps
ON1 ON2 ON3
35 50 70