- 4-
If the heat pump is replaced, the installation must be inspected again. In the event of
installation with unvented (closed) heating systems, G3 unvented guidelines must be
followed during the install. It should be noted that the heat pump provides the first measure of
defense against high pressure/temperatures. A further 2 must be installed to comply with the
G3 unvented procedures.
3.1-3: Siting the heat pump
The unit is placed (securely fixed) outdoors on a firm base, preferably a concrete foundation. It
should not be positioned next to sensitive walls, for example, next to a bedroom. Also ensure
that the placement does not inconvenience any neighbou
rs’.
Large amounts of condensation water as well as de-icing water from defrosting can be
produced. You must provide good drainage at the installation area and make sure the water
cannot run out onto paths or the like during periods that ice can form. Ideally, condensation
water is led off to a water drain or a suitable soak away. The distance between the unit and the
exterior wall must be at least 350 mm. The free space above must be at least one meter. The
unit must not be placed in a position so that air can re-circulate thus lowering the COP.
Care must be exercised so that the heat pump is not scratched during installation.
3.1-4: Controller:
The AH9/11/16 is equipped with an external electronic controller that handles all functions
necessary for heat pump operations. Defrosting, stop at max/min temperature, connection of
the compressor heater as well as enabling the aux electrical heater, monitoring of motor
protection and pressure switches are all controlled.
The number of starts and the operating time can also be read.
The controller is set during installation and can be used during a service.
Under normal operating conditions the home owner does not need to have access to the
controller. The AH9/11/16 has an integrated electronic outlet water temperature sensor that
limits the outlet temperature up to 60
℃
.
3.2
Installation design
The AH9/11/16 can be installed in several different ways.
