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installer
HRC
70
35kW HIGH TEMPERATURE HEAT PUMP
manual
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12
13
3.4.4 - Electrical protection of the compressors
The HRC
70
Heat Pump is equipped with progressive starters to
limit the intensity of the current when the motor starts-up, in
compliance with the limits set by the NF C 15 100 standard, which
is: 60A per phase in three-phase.
The electrical protection devices for
the compressors constantly monitor
the current and voltage. In case of over-
voltage, under-voltage, or an abnormally
high current, the compressor is stopped.
• Progressive starter for the 35kW three-phase HRC
70
Heat pump.
The progressive start-up device also serves to
control the phases (phase order or missing phase,
which could damage the compressor).
If the order of phases is inversed or if there is a
missing phase, the relay cuts the power supply
supply to the compressor. This error is indicated by
by the LED light flashing every second.
The progressive start-up device controls the power
supply voltage. If the voltage is under 195V, the
compressor is stopped or does not start-up. This
error is indicated by the LED light flashing rapidly
(10 flashes per second).
In case of a compressor error (over-current, short circuit, or
error on the start-up device itself) the error is indicated by an
intermittent flashing of the LED (light on for 5 seconds, and then
off for 5 seconds).
4 - MAINTENANCE AND
TROUBLESHOOTING
•In order to ensure the best performance
results from your HRC
70
Heat Pump it
should be subject to regular maintenance.
•An annual maintenance check is recommended
to be carried out by a qualified professional on
the hydraulic heating circuit.
•All work carried out on the refrigerant circuit
must be done by a qualified professional with a
category 1 certificate of aptitude.
•Always switch the appliance off before opening it.
4.1 - General information
4.2 - Maintenance on the hydraulic
circuit
After the appliance has been operating for a few days, it is
advised to check that the water circuit is properly sealed, and that
condensates are draining properly.
Note :
In case of maintenance work or decommissioning of an
appliance, please respect all environmental protection
instructions concerning recovery, recycling, and disposal
of consumables and components.
Inspection of the water circuit consists of removing sludge,
checking the filters, and stopping up any leaks that may have
appeared. Clean or replace clogged or dirty filters.
From time to time check that the condensates are draining
properly:
- Remove the back panel
- Check the drainage hole for blockages
- Clean the condensates recovery trough as deposits from air
intake may accumulate there
- Clean the flexible drainage hose:
Case a : drainage from underneath
Case b : drainage from the back
Check that the pressure-relief valve is properly sealed. It should
not leak if the water pressure is under 2.5 bars.
Condensates recovery trough
Grommet membrane (case b)
Plastic cap (case a)
Opening in base of
concrete slab
Pressure relief valve
