Panasonic CU-A120KE - Page 22

CS-A70KE
Operation Details
3) Heating Mode Operation
Heating in operation according to Remote Control setting.
[Time Delay Safety Control
* When the compressor is stopped by Power Switch, Remote Control or there is a power failure, it restarts after 3
minutes when the Power Switch, Remote Control is turned ON or the power supply is resumed.
* When the setting temperature is reached during heating operation, the compressor stops and it will not start for
4 minutes.
* Indoor Fan stops for 1 minute after 3 minutes compressor stops. Then, it will operate with SLo fan speed.
| Overload Protection Control |
¢ {fthe temperature of the indoor heat exchanger rises to 51°C, Outdoor Fan stops.
The Outdoor Fan restarts when the indoor heat exchanger temperature falls to 49°C.
¢ |f the indooor heat exchanger becomes 65°C or more, the compressor will stop and restart automatically.
(Time Delay Safety Control — 4 minutes waiting)
Compressor
Indoor
heat
exchanger
map
Compressor
==
restarts
temperature
=
65°C
(4
minutes
waiting)
Compressor Reverse Rotation
Protection Control
° If the compressor is operating continually for 5 minutes or longer and temperature difference between intake air
and indoor heat exchanger is 5°C or less for 2 minutes, compressor will stop and restart automatically.
(Time Delay Safety Control is valid).
OFF
Compressor
restarts
* Compressor starts 5 minutes Compressor
*AT <5°C for 2 minutes OFF
(4 minutes waiting)
AT = Indoor heat exchanger temperature — intake air temperature
This is to protect reverse rotation of the compressor when there is a instantaneous power failure.
4-way Valve Control |
¢ 4-way valve always ON during Heating operation.
* When the unit is switched to "OFF" during Heating operation, 4-way valve stays at Heating position for 5 minutes.
| Hot Start Control |
When Heating operation starts, Indoor Fan will not start until the indoor heat exchanger reaches 30°C as diagram
shown.
Indoor
heat
exchanger
(°C)
Hot Start is completed when indoor heat exchanger reaches 41°C.
Sots