Toshiba Estia RUA-CP1701H, Руководство по обслуживанию

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Monobloc Outdoor Unit Service Manual
76
Check Code Determination and action
A
lar
m
[
P
3
44]
C
ur
ren
t A
lar
m
[P
346
] t
o [
P
3
49]
P
a
s
t A
la
rm
[P
350
] t
o [
P
3
54]
Operational Cause Unit Status
Automatic
Reset
228
33

Inverter high pressure
release failure Compressor
stop
O
Alarm reset by resetting the power supply to the Monobloc unit. Error
detected when discharge pressure exceeds HP switch limit pressure.
1. Check of outdoor fan operation.
2. Check motor error of outdoor fan.
3. Check clogging of outdoor PMV.
4. Check clogging of heat exchanger.
5. Check for re-cycling of air around air heat exchanger
- 50
Exchanger freeze protection
on water temperature (in
cooling)
Stop X
Automatic reset when EWT or LWT is ≥4°C. Alarm is activated during cooling
mode or a defrost operation and when EWT or LWT < 4°C
Cooler heater is energized while the alarm is active. Water pump is forced to
run.
1. Check water flow rate
2. Check water pressure drop
3. Check EWT sensor
4. Check LWT sensor
- 51
Exchanger freeze protection
on refrigerant temperature
(in cooling)
Stop O
Alarm reset by resetting the power supply to the Monobloc unit. Energized
Cooler Heater while alarm is active.
Force pump to run until alarm reset kind becomes manual.
Error becomes definite after retrying operation more than 12 occurrences
within a 2 hours period
1. Check TR, TD, TS & BP sensors
2. Check PMV is operating correctly
3. Check refrigerant circuit for leaks
4. Check refrigerant pipes are not damaged
243 60 Reversing valve protection
Compressor
stop
O
Alarm reset by resetting the power supply to the Monobloc unit. Error
becomes definite after retrying operation for 4 times.
1. Check operation of 4-way valve.
2. Check air heat exchanger (TE), suction temp. sensor (TS).
3. Check BPHE sensor (TR).
4. Check 4-way valve coil.
5. Check PMV (Pulse Motor Valve).
246 61 Fan error
Compressor
stop
O
Alarm reset by resetting the power supply to the Monobloc unit. Error
becomes definite after retrying operation for 8 times.Error detected in either
of the following condition;
1) Fan motor lock
2) Fan motor IPM over currentat start up
3) Fan IPDU DCvoltage abnormal
Check:
1. Check lock of fan motor.
2. Check power supply voltage between L2 and N.
250
62

Compressor inverter short
circuit protection Compressor
stop
O
Alarm reset by resetting the power supply to the Monobloc unit. Error
becomes definite after retrying operation for 8 times. Error detected in either
of the following condition;
1) Compressor IPM short circuit
detection at start up
2) Compressor IPM short circuit
detection during coil heating
253 63
Compressor motor position
detection error Compressor
stop
O
Alarm reset by resetting the power supply to the Monobloc unit. Error
becomes definite after retrying operation for 8 times. Error detected when
offset voltage of motor current sensor is abnormal before compressor start
up.
129
64

Compressor breakdown
Compressor
stop
O
Alarm reset by resetting the power supply to the Monobloc unit. Error
becomes definite after retrying operation for 8 times. Error detected in either
of the following
condition;
1) Compressor over current
2) Compressor IPM short circuit
3) Compressor motor control failure
Check:
1. Check power supply voltage.
2. Overload operation of refrigerating cycle
130
65

Compressor lock
Compressor
stop
O
Alarm reset by resetting the power supply to the Monobloc unit. Error
becomes definite after retrying operation for 8 times. Error detected in either
of the following condition;
1) Compressor motor lock
2) Compressor motor IPM over current at start up
Check:
1. Trouble of compressor (Lock, etc.): Replace compressor.
2. Wiring error of compressor (Open phase)
132
70

Compressor thermal switch
release failure Compressor
stop
O
Alarm reset by resetting the power supply to the Monobloc unit. Error
becomes definite after retrying operation for 10 times.
1. Check case thermostat and connector.
2. Check gas leak, recharge
3. Check PMV (Pulse Motor Valve).
4. Check broken pipe.