0 rps
A rps or less
More than A rps, but B rps or less
More than B rps
Decision speed
0 rps
A rps
A rps to B rps
B rps
Indoor compressor command total speed value
Values of A, B
Model
Item
A
B
Two connection
More than three connection
One connection
More than two connection
40 rps
30 rps
90 rps
120 rps
SCM71ZM-S1
SCM80ZM-S1
(1) Summary
(a) Capacity control
(i) Indoor unit SRK
**
ZSX models only
Model
Capacity
SCM71ZM-S1
1.5
̾
9.4 kW
SCM80ZM-S1
1.5
̾
9.8 kW
Capacity control is within the range shown above. If demand capacity of the indoor units exceeds the maximum capac-
ity of the outdoor unit, the demand capacity will be proportionally distributed.
(b) Outdoor compressor speed control
(ii) Indoor unit except SRK
**
ZSX models
Model
Capacity
SCM71ZM-S1
1.5
̾
9.1 kW
SCM80ZM-S1
1.5
̾
9.5 kW
Functional
components
Operation
Command speed
Indoor
unit fan
Compressor
Outdoor unit fan
Electronic
expansion valve
Multi-operation rpm calculated based
on the rpm required for each indoor unit
ON
According to command speed
According to outdoor unit speed
According to decision
speed
0
(All indoor units)
Hot keep
OFF
According to stop mode
Hot keep
Hot keep
Hot keep
0
(Thermostat off units)
ON
According to heating stop unit control
(Thermostat off units)
According to outdoor unit speed
According to mode switching
According to heating stop unit control
(Fan, stop, abnormal stop units)
0
(Fan, stop, abnormal stop units)
0
(All units)
ON
According to command speed
According to mode switching
OFF
OFF
OFF
According to stop mode
Heating
Thermostat OFF
(All indoor units)
Thermostat OFF
(Some of indoor units)
Fan, stop, abnormal stop
(Some of indoor units)
Failure
(Outdoor unit)
Fixed
Automatic
(2) Operation of major functional components in heating mode
7.3 Outdoor units
7.3.1 Outline of heating operation
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192
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'17 • SCM-T-225