- INSTALLER HIGHTEMPERATURE ENERGY EFFICIENT HEAT PUMP MANUAL -
36
Check the values read by the HRC
70
Heat Pump
display
3 sec
AMBIeNCE 1
20.0°C
AMBIeNCE 2
21.0°C
outside
10.0 °C
heat curve
40.0 °C
Circuit 1 ambient temperature
(with sensor)
Circuit 2 ambient temperature
(with sensor)
Outdoor temperature
Outdoor temperature
example
example
example
example
6.2.2 - HRC
70
Pilot
6.2.3 - Heating circuit maintenance
We would advise you to have an annual maintenance check carried
out on the HRC
70
Pilot, which should be done by a quali ed
professional.
• When operating with electrical back-up, after the appliance has
been running for a few days and then at least once a year, all the
electrical power connections (switches and heating elements)
should be checked to ensure that they are properly tightened.
• Brie y activate the sludge valve and check the water pressure (use
back-up if necessary)
• Clean the valve lter
• Release any trapped air in the HRC
70
Pilot.
• Check that the whole circuit is watertight, as well as the pressure
relief valves.
• Check the hydraulic pressure. This should not be any higher than
the water pressure in the expansion vessel. It should never be
higher than 2.5 bars when hot. If the water pressure is low, check
that all of the circuitry is watertight before adding more water.
• Check the composition and condition of the water in the heating
circuit.
• Check the hydrualic circuit, cleaning the lter and checking the
water quality (pH level, anti-freeze, etc.).
The HRC
70
Heat Pump contains type R290 refrigerant. This means
that it is not subject to the regulations on the greenhouse e ect
an does not require an annual maintenance check by a quali ed
professional.
However, we would recommend that from time to time (at least
once a year) the evaporator ns are cleaned if they have collected
leaves or dust on them. This should be done by using a vacuum
cleaner or spraying them with water.
Never clean the nned heat exchanger
with high-pressure cleaning
equipment: this could damage the ns.
In case of repair work on the HRC
70
Heat Pump, the refrigerant
circuit or the electrical box, it is important to follow the
instructions below:
Any work on the refrigerant circuit must be undertaken by a
quali ed professional with a category 1 certi cate of aptitude. It is
forbidden to release gas from the refrigerant into the atmosphere
and it is obligatory to recover the refrigerant before doing any
work on the circuit.
The HRC
70
Heat Pump uses a type R290 refrigerant. Given the
ammable nature of this uid, any work on the refrigerant circuit
must be carried out using suitable equipment which complies
with the current rules and regulations. When handling the uid
(recovery, draining or re lling), the machine must be disconnected
from the power supply. Do not smoke or light ames (lighter,
blow-torch) when handling the uid. If it is necessary to work on
the refrigerant circuit using a ame (a blow-torch) the refrigerant
circuit must be drained and emptied beforehand and a nitrogen
vacuum must be created.
6.3 - Heat Pump maintenance
6.5.1 - Accessing control readings and internal /
external controls
• Always disconnect the appliance from the
power supply before accessing electrical
terminals.
• Do not put water on any electrical parts.
6.4 - Electrical components maintenance
6.5 - Checking operating temperatures
• Check on both the HRC
70
Heat Pump and HRC
70
Pilot that the
electrical power supply cables are connected properly on the
terminals.
• Check for oxidation or overheated areas on the electrical
connections.
• Check that the cables are well-tightened on the compressor
starters.
• Clean any dust from the electrical box and check the
connections.
• Check that the ground cable is properly connected.
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