20
INSTALLATION (continued)
SYSTEM FILLING
Sealed Systems
Before filling the system, ensure that all fittings and joints have
been made. Thoroughly flush out the system to remove any
swarf and residue from the pipework and associated
components.
Fill the system to the pressure required (recommended 1 bar),
via an approved filling loop. Ensure all air has been vented from
the system before operating the appliance.
Open Vent Systems
Fill via mains pressure to flush air out of the system (see
fig. 11
below
for further details). There must be no permanent
connection between the appliance and the mains water supply.
Air Removal
If the air is not fully removed from the system, a lockout will
occur within the unit (operating parameter
8
), causing it to cease
operation. To remove excess air, open the isolation valves to
the heating/hot water system and fill using one of the above
methods until the air has been removed via the automatic air
vent. Should air remain within the Activair, close the isolation
valves to the system and use mains pressure to expell air as
shown in
fig. 11
below.
COMMISSIONING
After the safe installation of the heat pump in full accordance
with these instructions, it is important that the unit is
commissioned to ensure reliable operation:
1) Fill the system, in accordance with the filling guide above.
2) Switch power on to the unit and set the water temperature
on the programmer to 40°C (see operating instructions,
page 7
).
3) The SUN symbol will appear at the top-right of the
programmer display (
fig 1
) as the unit operates. Run the
heat pump until the water temperature has reached 40°C.
The SUN symbol will flash when the water reaches this
temperature and the unit will cease operation.
5) Explain all system controls and the maintenance procedure
(below) to the end-user. Make adjustments to the
programmer settings as requested.
SERVICING & MAINTENANCE
While it is not necessary to carry out an annual service on the
appliance, regular inspections may be required, depending upon
where the unit is sited.
Note:
Isolate the electrical supply to the appliance before
accessing the interior of the unit.
INTERNAL INSTALLATION
A visual inspection of the fan and coil should be made once per
year. Clean as often as is necessary (e.g. when dirt build-up is
visible) and remove any obstructions.
Ensure the supporting base remains stable and capable of
supporting the full weight of the appliance, including its water
content.
EXTERNAL INSTALLATION
Every Three Months
Visually inspect the appliance, and remove any leaves, plant life
or debris from around or inside the unit.
Every Twelve Months
A visual inspection should be made of the fan and coil. Clean as
often as is necessary (e.g. when dirt build-up is visible) and
remove any obstructions.
Ensure the supporting base remains stable and capable of
supporting the full weight of the appliance, including its water
content.
If the appliance is installed in a coastal area, the periodic
removal of salt may be required from the coil.
Panels
Periodically clean the panels by wiping with a damp cloth. Do
not use alcohol, benzine, thinners, glass cleaner, household
polish or powders. It may be appropriate to apply a protective
wax to the casings, especially in coastal areas.
FIG 11
4) Press and release the search button and check readings
1 to 4. The temperature diffrerence between 1 and 4
should be no more than 25 deg C. If the difference is
higher check for impaired water flow.
