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MANUAL
HTi
70
6 & 8 KW HEAT PUMPS
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11
5.4.2 - Hydraulic connection between Heat
pump and pilot
A suffi
cient fl ow rate should be ensured so that the range of
temperature between the outlet and inlet of the Heat Pump
does not exceed 5°C when the Heat Pump is operating at full
power (take a temperature measure when the HTi
Heat Pump is in
heating mode and the system is fully functioning):
The hydraulic connection section between the Heat Pump and
the Pilot must be suffi
cient.
Using the tables below, determine the minimum inner diameter
of the connection of piping needed depending on the distance*
which separates the Heat Pump and the Pilot.
Make sure that all sections of piping are equipped with functional
and accessible air valves.
The Heat pump’s hydraulic connection to the Pilot can be done
using steel, copper, or reticulated polyethylene pipes with a
minimum equivalent diameter of 1’’.
The hydraulic kit must be installed using fl exible piping on the
water inlet and outlet points of the Heat pump in order to prevent
any vibrations from being transmitted to the heating system.
5.4.3 - Heat pump water inlet fi lter (supplied)
A 1’’ valve with a built-in 500µm fi lter must be installed on the water
inlet piping on the Heat pump:
• Respect the direction of fl ow on the fi lter (arrow on the
valve).
Clean the fi lter several times as soon as
the Heat pump circulator pump has been
activated (make sure to switch off the Heat pump
circulator pump before cleaning).
Please refer to the pilot’s user manual for any
additional recommendations concerning
hydraulic connnection.
• Clean the fi lter at least once per year.
Heat pump model
6kW
8kW
Minimum nominal fl ow rate
1000 L/h
1350L/h
Maximum pressure
2.5 bar
2.5 bar
Hydraulic connection
1’’
1’’
Minimum Ø of piping needed:
If distance* between HP and pilot < 10m
(the equivalent of linear 30m of load loss)
22/24
22/24
If distance* between HP and pilot > 10m and < 15m
(the equivalent of linear 20m of load loss)
24/26
24/26
If distance* between HP and pilot> 15m and < 25m
(the equivalent of linear 50m of load loss)
28/30
28/30
If distance* between HP and pilot > 25m and< 50m
(the equivalent of linear 100m of load loss)
32/34
32/34
5.5 - Connecting to the power supply
The rules and regulations in the country of
installation MUST be respected (standard
C15-100).
• The electrical lines for general power supply to the
circuits must be made in compliance with your
country’s current rules and regulations (standard
C15-100).
• Standard C15-100 determines the cable section to
be used based on acceptable currents.
• Standard C15-100 determines the cable section to
be used based on the following elements:
- Nature of the conductor:
. type of insulation, number of strands, etc...
- Installation mode:
. infl uence of conductor and cable groups
. ambient temperature
. tightly or non-tightly installed
. length of cables, etc...
Ensure that the power supply is suffi
cient to supply both the Heat
pump and the electrical back-up if necessary, taking into account
any other domestic usage of electricity.
Connection to the power supply for each appliance must be done
by a qualifi ed professional with the mains power switched off .
• During transport, the electrical
connections may be subject to accidental
loosening.
• To eliminate any risk of abnormal heating, it is
necessary to ensure the placement of the faston
type electrical connections are secure and tighten
the screw connections.
See§ «Spare parts - electrical boxes»
Each appliance is delivered from the factory completely pre-
wired. However, it is necessary to connect the following elements
to the relevant terminals:
• The electrical supply of the Heat pump’s power supply
circuit.
• The 2-core sheathed connecting cable (10m length
supplied) between the Heat pump and the Pilot.
Under no circumstances will the manufacturer be held liable for
any problems which may arise due to improper installation and/or
choice of power supply cable.
5.5.1 - General recommendations
