– 11 –
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System able to be combined
Super Module Multi System (S-MMS)
Cooling only and Heat pump series
Super heat recovery multi and Mini-SMMS cannot be connected.
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Range of combination
• The total capacity of the indoor air conditioners and the fresh air intake indoor units is restricted 80% to
100% against the capacity of the outdoor units.
• Up to two fresh air intake indoor units can be connected on one refrigerant cycle.
• The allowable total capacity of the fresh air intake indoor units shall be 30% or less against the capacity
of the indoor air conditioners (including the fresh air intake indoor units).
• The height difference between the fresh air intake indoor units shall be 0.5m or less.
(Example)
1-1-2. Use Conditions
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Use temperature
(Suction temperature)
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Special mentions
1. The fan operation of the fresh air intake indoor unit stops during defrosting.
2. When a central controller is used, divide zone setup of indoor air conditioner and fresh air intake unit.
3. The standard is to control the discharge temperature. However the priority is given to the capacity
control for the indoor air conditioner in a system in which the normal indoor air conditioner concurrently
operated.
4. The fresh air intake indoor unit cannot be connected with remote controller group of the indoor air
conditioner.
5. In heating operation, if the outside temperature is below –5°C, the operation stops automatically. (FAN stop)
(To protect the refrigerant cycle)
6. In cooling operation, if the outside temperature is below 5°C, the operation stops automatically. (FAN stop)
COOL: 5 to 43°C; However when suction temp is below 19°C, the mode becomes FAN mode.
When the suction temp is below Ts +3°C, the mode is also FAN mode.
HEAT: –5 to 43°C; However when suction temp is over 15°C, the mode becomes FAN mode.
When the suction temp is over Ts –3°C, the mode is also FAN mode.
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Operable mode and
discharge temp setup range
Operation mode
COOL
HEAT
At shipment from factory
18°C
25°C
Setup range
16 to 27°C
16 to 27°C
NG
Up to two fresh air intake units
30% or less against the capacity
of the indoor air conditioners
80 to 100% against capacity of outdoor unit
Connection which
stretches over
two floors is
unavailable
(*Ts: Setting temp.)
Operation cycle
Cooling cycle
Heating cycle
Outside temp (˚C)
Ts
-10
0
10
20
30
40
50
FAN
COOL
HEAT
TS-3
TS+3
FAN
