Panasonic CS-A24BB4P Service Manual page 100

CASSETTE TYPE
c. Forced defrosting
If P8 on the outdoor unit circuit board is shorted while the compressor is on during heating mode operation and the
temperature detected by the outdoor unit heat exchanger outlet sensor is 25°C or lower, defrosting is carried out regardless
of the current starting conditions.
2. Operation
a. During defrosting, the outdoor unit turns on the compressor and turns off the outdoor unit fan and the reversing valve.
b. The indoor unit fan operates at LOW speed for 30 seconds upon defrosting starts, After this, the indoor unit fan turns off until
defrosting is completed.
(During defrosting, the louvre of the indoor unit stays at horizontal position).
27.9. Indoor thermostat charateristics
1. Thermostat characteristic s during cooling and heating modes.
Cooling
Heating *1
1*
NOTE: If the remote control display setting temperature (To) is 29°C or higher, the heating thermostat turns
2. Thermostat characteristic s during dry mode.
During dry mode operation, cooling mode operation is carried out in accordance with the indoor temperature as shown in the
table below.
* When modes (2) and (3) are active, dry mode operation starts when the cooling thermostat turns on.
When modes (2) and (3) have been stopped, the 10 min./5 min. times have no relevance. However, if the indoor temperature
is less than or equal to the remote control unit setting temperature, mode (4) is forcibly activated.
Operation mode Setting temperature (To)
*1 (27~31)
If jumper wire J3 on the indoor unit circuit board is disconnected, the thermostat characteristics
during heating become 2K or higher.
on when the room temperature is 31°C.
Operation
16 O N
O F F
31 O N
O F F
16 O N
O F F
29~31 O N
O F F
100
Room temperature (°C)
Differential
2.0K 4.0K
18.0 ____
16.0 ____
33.0 ____
31.0 ____
18.0 20.0
20.0 22.0
31.0 31.0
33.0 33.0