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308
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'12 • PAC-T-173
(23) Fan control at heating startup
(a) Start conditions
At the start of heating operation, if the difference of setting temperature and return air temperature is 5°C or higher after
the end of hot start control, this control is performed.
(b) Contents of control
1)
Sampling is made at each minute and, when the indoor unit heat exchanger temperature (detected with Th
I
-R) is
37°C or higher, present number of revolutions of indoor unit fan speed is increased by 10min
-1
.
2)
If the indoor unit heat exchanger temperature drops below 37°C at next sampling, present number of revolutions of
indoor unit fan speed is reduced by 10min
-1
.
(c) End conditions
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the start of heating operation.
(24) Room temperature detection temperature compensation during heating
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is likely to turn OFF earlier because the unit is installed at the ceiling where warm air tends to accumulate, the setting can be
changed with the wired remote controller indoor unit function “
”. The compressor and the heater are turned ON/OFF
at one of the setting tempe3, +2 or +1°C in order to improve the feeling of heating. The setting temperature, however,
has the upper limit of 30°C.
Compressor
Compressor
Standard
Operation
Stop
Setting temperature
-1
+1
Room temperature (deg)
Operation
Stop
Setting temperature
+2
+4
Room temperature (deg)
When it is set at +3°C
(25) Return air temperature compensation
This is the function to compensate the deviation between the detection temperature by the return air temperature thermistor and
the measured temperature after installing the unit.
1)
It is adjustable in the unit of 0.5°C with the wired remote controller indoor unit function “RETURN AIR TEMP”.
• +1.0°C, +1.5°C, +2.0°C
• -1.0°C, -1.5°C, -2.0°C
2)
Compensated temperature is transmitted to the remote controller and the compressor to control them.
Note (1) The detection temperature compensation is effective on the indoor unit thermistor only.
(26) High power operation (RC-EX1A only)
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°C for cooling, 30°C for heating and maximum indoor fan speed for 15 minutes
maximum.
(27) Energy-saving operation (RC-EX1A only)
It operates with the setting temperature fixed at 28°C for cooling, 22°C for heating or 25°C for auto. (Maximum capacity is
restricted at 80%.)
(28) Warm-up control (RC-EX1A only)
Operation will be started 5 to 60 minutes before use according to the forecast made by the microcomputer which calculates
when the operation should be started in order to warm up the indoor temperature near the setting temperature at the setting time
of operation start.
(29) Home leave mode (RC-EX1A only)
When the unit is not used for a long period of time, the room temperature is maintained at a moderate leval, avoiding extremely
hot or cool temperature.
(a) Cooling or heating is operated according to the outdoor temperature (factory setting 35°C for cooling, 0°C for heating)
and the set temp. (factory setting 33°C for cooling, 10°C for heating)
(b) Set temp and indoor fan speed can be set by RC-EX1A.
(30) Auto temp. setting (RC-EX1A only)
Setting temperature is adjusted automatically at the adequate temperature the center set temp. is 24°C by correcting the outdoor
air temperature.
Summary of Contents for FDC Series
Page 95: ... 94 12 PAC T 173 Models FDT100VF 125VF 140VF H H H H H C B A F G D G PJF000Z285 ...
Page 98: ... 97 12 PAC T 173 Models FDEN60VF 71VF C 2 C 1 A B A B D C 1 C 2 C 1 C 2 E G F B PFA003Z817 ...
Page 113: ... 112 12 PAC T 173 b Wireless remote controller RCN E1R 60 17 150 Unit mm ...
Page 278: ... 277 12 PAC T 173 ー K ...
Page 346: ... 345 12 PAC T 173 Power PCB 1BSU OVNCFS 4GRNCEG VJG 2 ...
Page 518: ... 517 12 PAC T 173 3 5 SUPER LINK E BOARD SC ADNA E F SL2NA E and SL3N AE BE to control ...
Page 519: ... 518 12 PAC T 173 ...
