Fujitsu Inverter Halcyon ASU12RMLQ, Service Instruction

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01-17
The external electrical heater is operated as shown in Figure 12.
17. EXTERNAL ELECTRICAL HEATER CONTROL (For AR type)
(Fig.12 : External electrical heater control)
When the room
temperature rises
When the room
temperature drops
Ts : Setting temperature
Heater : OFF
Heater : ON
Heater : OFF
Ts -10°C
Ts -1°C
Ts -3°C
Ts -12°C
When the compressor stop,
External electrical heater is OFF.
18. DRAIN PUMP OPERATION ( For AU, *AR type )
1. When the compressor starts, the drain pump starts simultaneously.
2. The drain pump operates continuously for 3 minutes after the compressor is turned off.
3. When the compressor stops by the "Indoor heat exchanger de-icing function", the drain pump is turned off in 1 hour
after the compressor stops.
4.When the water level in the drain pan rises up and then the float switch functions:
The compressor, indoor and outdoor fan motor operation are stopped.
Drain pump operates continuously for 3 minutes after the float switch is turned off.
(Almost condensing water may be drained)
5. When the float switch turns ON continuously for 3 min., "FAILURE INDICATION" operates.
6. When the float switch turns OFF within 3 min., the unit starts cooling operation.
1
2
1.When the water level in the drain pan rises up and then the float switch functions:
Drain pump operates continuously for 3 minutes after the float switch is turned off.
(Almost condensing water may be drained)
2. When the float switch turns ON continuously for 3 min., "FAILURE INDICATION" operates.
1
During Cooling / Dry operation
During Heating / Fan / Stop operation
The fan motor for Fresh Air is operated in synchronization with the indoor fan operation
as shown in Figure 11.
16. FRESH AIR CONTROL (For AR type)
(Fig.11 : Fresh air control)
Operation
Stop
Operation
Stop
Fan motor
(Indoor unit)
Fan motor
(for Fresh Air)
*When installed the drain pump which procured locally, it operates