Panasonic CZ-RTC2

3-52
Control of 2WAY SYSTEM
1
2
3
4
5
6
7
8
9
3. Timer Remote Controller
Continued
Possible cause of malfunction
Alarm
message
Activation of
protective device
Protective device in indoor unit
is activated.
<<P01>>Thermal protector in indoor unit fan motor is activated.
<<P09>>Improper wiring connections of ceiling panel.
<<P10>>Float switch is activated.
P12Operation of protective function of fan inverter.
Protective device in outdoor unit
is activated.
Compressor thermal protector is activated.
Power supply voltage is unusual. (The voltage is more than 260 V or less
than 160 V between L and N phase.)
P02
P03Incorrect discharge temperature. (Comp. No. 1)
P04High pressure switch is activated.
P05Negative (defective) phase.
O
2 sensor (detects low oxygen level) activated
P14
P16DCCT overcurrent or ACCT overcurrent
P17Incorrect discharge temperature. (Comp. No. 2)
P18Compressor 3 discharge temp. failure
P22Outdoor unit fan motor is unusual.
P20High load alarm
H31IPM trip (IPM current or temperature)
Inverter for compressor is unusual. (DC compressor does not operate.) P29
Thermistor fault Indoor thermistor is either open
or damaged.
<<F01>>Indoor coil temp. sensor (E1)
<<F02>>Indoor coil temp. sensor (E2)
<<F03>>Indoor coil temp. sensor (E3)
<<F10>>Indoor suction air (room) temp. sensor (TA)
<<F11>>Indoor discharge air temp. sensor (BL)
Outdoor thermistor is either open
or damaged.
F04Comp. No. 1 discharge gas temp. sensor (DISCH1)
F05Comp. No. 2 discharge gas temp. sensor (DISCH2)
F06Outdoor No. 1 coil gas temp. sensor (EXG1)
F07Outdoor No. 1 coil liquid temp. sensor (EXL1)
F08Outdoor air temp. sensor (AIR TEMP)
F12Compressor intake port temperature sensor (RDT)
F16High pressure sensor. Negative (defective) N phase.
F17Low-pressure sensor failure
F22Compressor 3 discharge temp. sensor failure (DISCH3)
F23Outdoor No. 2 coil gas temp. sensor (EXG2)
F24Outdoor No. 2 coil liquid temp. sensor (EXL2)
Improper setting.
This alarm message shows when an indoor unit for multiple-use is not
connected to the outdoor unit.
L02
Duplication of main indoor unit address setting in group control.
<L03>
Duplication of outdoor R.C. address setting.
L04
There are 2 or more indoor unit
controllers that have operation
mode priority in refrigerant circuit.
Priority set remote controller
L05
Non-priority set remote controller L06
Group control wiring is connected to individual control indoor unit.
L07
Indoor unit address is not set.
L08
Capacity code of indoor unit is not set.
<<L09>>
Capacity code of outdoor unit is not set.
L10
Mis-matched connection of outdoor units that have different kinds of
refrigerant.
L17
4-way valve operation failure
L18
Serial
communication
errors
Mis-setting
TD831151-002WAY.indb52TD831151-002WAY.indb52 2011/01/1317:08:042011/01/1317:08:04