Outdoor Units - Mitsubishi SCM40ZS-S Technical Manual

7.5 Outdoor units

7.5.1 Outline of heating operation
(1) Summary
(a) Capacity control
(i) Indoor unit SRK ** ZMX-S models only
Model
Capacity
(ii) Indoor unit SKM**ZSP-S models only
Model
Capacity
(iii) Indoor unit except SRK ** ZMX-S and SKM**ZSP-S models
Model
Capacity
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
Indoor compressor total speed value
Item
A
B
(2) Operation of major functional components in heating mode
Operation
Functional
components
Compressor speed
Fixed
Indoor
fan
Automatic
Outdoor fan
Electronic
expansion valve
Compressor
(3) Defrost operation
(a) Starting conditions
(i)
(ii)
(iii)
(iv)
(Tho-A) (Tho-R) > = 0.44 × (Tho-A) + A
Tho-A
2 °C < = Tho-A
15 °C < = Tho-A <
Tho-A < 15 °C
SCM40ZS-S SCM45ZS-S
SCM40ZS-S SCM45ZS-S
1.3 — 6.1 kW 1.3 — 6.3 kW
SCM40ZS-S SCM45ZS-S
Decision speed
Model
SCM40ZS-S SCM45ZS-S
Thermostat OFF
Heating
(All indoor units)
40
40
Tho-R
−
2
Tho-A
A
2 °C
SCM50ZS-S
SCM50ZS-S
1.4 — 7.3kW
SCM50ZS-S
SCM50ZS-S
Thermostat OFF
(Some of indoor units)
satisfied
189
- -
'16 • SCM-T-199
Fan, stop, abnormal stop Failure
(Some of indoor units) (Outdoor unit)
Tho-R