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5 min. after re-start of the heat pump (fan + compressor), check the water flow pressure gauge display and set valve V3 or
V5 in order to bring the needle into the green zone (beginning of season {cold water}: position at the start of the green zone).
Normal position of the pressure
gauge needle when the appliance is
off
(compressor and fan(s) OFF).
Attention ! this position may vary
slightly in the « ARRET » zone
depending on water and ambient air
temperatures.
Reminder: If, when setting the by-pass and setting valves, the flow rate is less than 1.5 m3/h the heat pump will not
function
(the flow switch remains open and the regulator displays the message AId alternating with the water temperature)
valves : -
-
or -
V5
(if present)
When the heat pump is running :
-If the flow rate switch switches on or off for a period longer than or equal to 3 s, a timer of 130 seconds* min. is
activated before the unit starts again.
* For information this time period may increase during a defrost cycle or if the compressor stop time is less than 180 s.
-In case of a power failure, a timer of 125 seconds starts when the power supply is restored before the unit starts again.
Observation: When the water attains the target temperature (Leds
automatically.
Reminder:
The 3-phase heat pump is equipped with a phase order control system (KA1) used to check that the phase order is correct
at start up (and during operation) and to signal a phase order fault (regulator indicates dCP fault and the green led KA1
inside the unit is off. The orange led remains on as long as phase L1 is present). In that event, switch off and isolate the
unit and it is sufficient to invert two phase wires directly on the main supply terminal.
ATTENTION !
6.3 Checking
Check that the heat pump stops heating when:
• the target temperature on the digital display thermostat is decreased
• filtration is switched off or valve V2 or V4 closed.
6.4 Troubleshooting
Faults :
Info: led
Message
Designation
Control sensor fault
Anti-frost sensor fault
Defrost sensor fault
Low pressure fault in
refrigerating circuit
High pressure fault in
refrigerating circuit
- and -
-.
V3
V1
this operation must be carried out by a qualified and authorised professional
remains on for 120s after a fault is indicated (except in the case of a dC indication when the heat pump remains operational).
Cause
Sensor defective or
disconnected
Sensor defective or
disconnected
Sensor defective or
disconnected
Insufficient refrigerant
1- Water and air mixture
passing in the appliance
2- Refrigerant overload
Normal position of the pressure
gauge needle when the
appliance is in operation
(compressor and fan(s) ON).
The position range in the
«CORRECT » zone may vary
depending on water and ambient air
temperatures, or even attain the
«LOW » zone when the water flow
going into the unit is too low.
.
Remedy
Replace or reconnect the sensor
Replace or reconnect the sensor
Replace or reconnect the sensor
Consult a PSA-approved technician to
look for leaks and refill refrigerant
1- Purge hydraulic circuit
2- Consult a PSA-approved technician
to check the refrigerant level
15
and
off) the heat pump switches off
Reset
Cut power supply or press
button
if dSr starts
blinking
Cut power supply or press
button
if dSA starts
blinking
Cut power supply or press
button
if dSd starts
blinking
Automatic
(if less than 4 faults within an
hour) or by pressing the button
if dbP starts blinking
Automatic
(if less than 4 faults within an
hour) or by pressing the button
if dHP starts blinking
. Adjust the setting
Alarm
YES
(terminals 0-4)
YES
(terminals 0-4)
YES
(terminals 0-4)
YES
- if more than 4
faults within one
hour -
(terminals 0-4)
YES
- if more than 4
faults within one
hour -
(terminals 0-4)
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