Commissioning; Hot Water Circuit; Operation Of The Heat Pump Water Heater - Dimplex LBW 300 Installation And Operating Manual

6.

Commissioning

6.1

Hot Water Circuit

Caution!
6.1.1 Hot water circuit requirements
On the consumer side, the following materials may be incorporated into the water circuit:
 Â
copper
Depending on the materials used in the hot water circuit (installation to be provided by the customer), corrosion
damage may occur due to material incompatibilities. This must be taken into account, in particular where
galvanised materials and those containing aluminium are used. A filter may have to be provided if there is a
danger of water becoming contaminated during operation.
6.1.2 Commissioning of the hot water system
•
All installations involving the water and air circuits as well as all electrical installations must have been
properly executed and completed.
•
Fill hot water circuit via external connection.
•
Bleed the hot water circuit (open hot water taps at the topmost points of use until no more air escapes).
•
Perform a leak test of the entire hot water circuit.
•
Connect the unit to the power supply.
•
Turn on the "heat pump" switch (Fig. 6) and the slide switch on the remote control (Fig. 7).
•
An appropriate heat-up time is required until the max. water temperature is attained (see Appendix, Technical
Data)
•
Water heating by means of a supplementary heat source (applies only to HPWH with int. heat exchanger) is
possible by switching on the charging pump for the heat exchanger (Fig. 6) (provided the required external
electrical connection has been established).
6.2 Operation of the HPWH
6.2.1 Operating panel
Temperature display
The sensor of the thermostat (analog remote thermometer with trend display) senses the hot water temperature in
the upper section of the hot water tank. The display is located in the operating panel .
The HPWH may only be operated with the unit filled with water!
stainless steel
 Â
brass
Temperature display
blue
10
plastic
red
35 °C 70 °C