Heating Standby - Panasonic S-45PU1E5 Technical Data & Service Manual

4-2. Heating Standby

In heating mode, the indoor fan speed decreases to prevent cold air discharge from the indoor unit. During this
time, (heating standby) is displayed on the remote controller.
This condition occurs in the following cases.
Thermostat OFF
Defrosting operation
Indoor heat exchanger liquid temperature (E1) < 28˚C and discharge air temperature < 25˚C just after
heating operation started
The fan speed may sometimes increase when this condition continues for 6 minutes.
The fan mode increases when the heat exchanger liquid temperature (E1) or discharge air
temperature increases.
The fan mode is selected based on the discharge air temperature and E1 temperature as shown
in the below fi gure. If the E1 temperature and discharge air temperature are different, the higher
temperature is used.
Temperature (°C)
E1 Discharge air
4
32 29
30 27
28 25
26 23
20 17
16 13
Operation
Set *HH
a f n H
speed
L
The function of "HH" is identical to the automatic fan speed mode.
STOP LL L H HH
STOP LL L H H
STOP LL L L L
H L LL STOP
H L LL S T O P
L L LL STOP
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