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INSTALLATION
41
HYDRONIC UNIT B
41
Alarm Inverter
Alarm [P350] - [P354] or [P360]
- [P364]
Description
Unit status
Reset type
Verifications
Automatic
Feeding cycle
Comment
25
Loss of communication with the Master
Stop
X
When a new message is received from the
Master
-
31
Security entrance
Stop O Stop heating OR
Stop cooling
X
When the security entrance is closed
-
32
Flow switch failure
Stop cpr
X
This error becomes permanent after 5 attempts
to complete the operation.
-
50
Exchanger antifreeze protection based on water
temperature (in cooling)
Cooling down
X
Ignition of antifreeze heaters, if present, when the alarm is active.
The pump is forced to start.
-
51
Exchanger frost protection based on the temperature of the refrigerant (in cooling)
Cooling down
X
Ignition of antifreeze heaters, if present, when the alarm is active.
The pump is forced to start
until the manual reset of the alarm is possible.
The alarm becomes blocking when it is
repeated 12 times in 2 hours.
243
60
Reverse valve protection
Stop cpr
X
This error becomes permanent after 4 attempts
to complete the operation.
1. Check the operation of the 4-way valve.
2. Check the intake temperature sensor (TE) of
the air heat exchanger
.
3. Check the BPHE sensor (TR).
4. Check the coil of the 4-way valve.
5. Check the PMV (pulse motor valve).
246
61
Fan error
Stop cpr
X
1. Check the blocking of the fan motor
.
2. Check the supply voltage between L2 and N.
250
62
Compressor short-circuit protection intervention
Stop cpr
X
This error becomes permanent after 8 attempts
to complete the operation.
Error detected in the following conditions: Compressor IPM short circuit at start-up
Compressor IPM short circuit during oil heating
253
63
Compressor motor position detection error
Stop cpr
X
This error becomes permanent after 8 attempts
to complete the operation.
Compressor motor position detection error Error detected when the voltage value of the current probe is abnormal before starting the
compressor
129
64
Compressor breakdown
Stop cpr
X
This error becomes permanent after 8 attempts
to complete the operation.
Error detected in the following conditions:
Compressor overcurrent
Compressor IPM short circuit
Compressor motor control malfunction
1.Check the supply voltage.
2. Overload operation of the refrigeration cycle
130
65
The compressor does not rotate
Stop cpr
X
This error becomes permanent after 8 attempts
to complete the operation.
Error detected in the following conditions:
Compressor motor locking
IPM compressor overcurrent at start-up
1. Compressor problems (lockout, etc.):
Replace the compressor
.
2. Compressor wiring error (open phase)
132
70
Failure to release compressor thermal switch
Stop cpr
X
This error becomes permanent after 10
attempts to complete the operation.
1. Check the frame and connector of the
thermostat.
2. Check for gas leaks, refill
3. Check the PMV (pulse motor valve).
4. Check for any broken pipes.
Содержание 20161618
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