Hydraulic Connections; Electrical Connections - CHAFFOTEAUX 150 L Notice D'emploi Et D'installation

Heat pump water heater – TECHNICAL INFORMATION FOR INSTALLERS

4.10 Hydraulic connections

Before using the product, we recommend filling its tank with water and draining it completely so as to remove the
residual impurities.
Connect the water heater inlet and outlet to pipes or pipe fittings that can withstand the operating pressure and
temperature of the hot water, which may reach 75 °C. It is not advisable to use materials that cannot withstand such
temperatures. The dielectric union fitting (supplied with the product) must be applied to the hot water outlet
pipe, prior to performing the connection.
Screw a "T" fitting identified by a blue collar onto the appliance's water inlet pipe. It is mandatory to screw on said
fitting a cock for draining the product with a tool on one side, and a suitable device against overpressure on the other
side.
WARNING! It is mandatory to apply a safety valve in the inlet water intake
In countries which acknowledge EN 1487 It is mandatory to fit a safety valve
onto the appliance's water inlet pipe. The device must comply with the EN
1487:2002 standard and must have a maximum pressure of 0.7 Mpa (7 bar).
Moreover, it must at least include the following components: a cut-off valve, a
non-return valve, a control mechanism for the non-return valve, a safety valve
and a water pressure shut-off device.
The accessory part codes are:
1/2" hydraulic safety device (for products with 1/2" diameter inlet pipe)  code 877084;
-
3/4" hydraulic safety device (for products with 3/4" diameter inlet pipe)  code 877085;
-
Syphon 1  code 877086.
-
Some countries may require the use of alternative safety devices, as required by local law; the installer must check
the suitability of the safety device he tends to use. Do not install any shut-off device (valve, cock, etc.) between the
safety device and the heater itself.
The device's relief outlet must be connected to a relief pipe with a diameter no less than that of the appliance's
connection (3/4"), with the aid of a siphon creating an air gap of at least 20 mm to allow for visual inspection; this is to
prevent any harm to persons and animals or damage to objects should the device activate and for which the
manufacturer shall not be held liable. Use a flexible pipe to connect the pressure safety device inlet to the cold water
system pipe, using a cut-off valve if necessary. Additionally, a water discharge pipe must be fitted to the outlet in case
the drainage tap is opened.
Avoid overtightening the pressure safety device and do not tamper with it. It is normal for water to trickle from the
pressure safety device during the heating phase; for this reason, it is necessary to connect the outlet, which must
always be left exposed to the atmosphere, to a drainage pipe that slopes downwards and towards an area not subject
to frost. It is advisable to also connect the condensate outlet to the same pipe, through the connection located on the
lower side of the water heater.
The appliance must not operate with water hardness levels below 12 °F; on the other hand, it is advisable to use a
suitably calibrated and monitored water softener in the event of particularly hard water (>25 °F); in this event, the
residual hardness must not fall below 15 °F.
If the mains pressure is close to the calibrated valve values, a pressure reducer must be installed as far as possible
from the appliance.
FIG 12. Caption: A:hot water outlet pipe / B: cold water inlet pipe / C: safety assembly / D: interception tap / E:
dielectric connection.
WARNING! It is advisable to carefully wash the system's pipes in order to remove any residues of screw
thread, welding or dirt which may hamper the correct operation of the appliance.

4.11 Electrical connections

Description
Alimentation
HC-HP connection
External unit connection cable
Shielded probe connection cable
between units
Availability
cable not supplied 3G min. 1.5 mm
cable not supplied 2G min. 0.5 mm
cable not supplied 5G 0.75÷1.5 mm
cable supplied
WARNING:
44
Cable Type
2 H05VV-F
2 H05VV-F
H05RN-F
2
4G shielded – UL2464
Max
current
16°
2°