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eLeCtRICAL
a. A separately fused single phase supply is required. With all
power switched off, remove the electrics access panel to
gain access to the terminals in the electric box. The supply
cable, entering the unit through knock outs in the panel, can
then be fed through to connect into the live/neutral/earth
terminals.
b. An MCB type C or D or correctly rated fuse must be used.
(Refer to data sheet on page 17 of this manual).
c. A local isolator should be fitted within 2 feet of the unit
to comply with I.E.E. regulations. Power to the unit is
indicated by the red indicator light on the console (mains
lamp).
d. A separate fused spur is normally used to supply the central
heating programmer and controls.
e. There are 10 connections to be made between the Ideal
heat pump and the control wiring centre. A multi core cable
with sufficient capacity will need to be provided and installed.
In most cases a 12 core 0.5mm control cable is used.
f. The unit may be live even when the mains lamp is off
eLeCtRICAL ConneCtIonS
a. The electrical connections diagrams are on pages 9 and 10
of this manual.
b. The wiring junction box is located behind the access panel
below the unit's control panel
c. For the heat pump to operate, you must have a live signal
into terminal 9 (space heating) and terminal 1 (DHW).
InteRnAL WIRIng
a. Internal wiring diagrams are on pages 11 and 12 of this
manual.
b. External wiring will depend on the heating system design
and is found on pages 22 & 24 of this manual.
8
InStALLAtIon
due to live feeds from the external control system. The
'programmer live' light on the control panel confirms the
presence of a supply. (See diagram page 13).
g. The heat pump can operate in one of two modes, either set
as supplied, with the unit biased to hot water, or with no bias
for hot water or heating.
h. Ideal Boilers would always recommend a system with the
heating biased to hot water. However if room heating and
hot water heating are required at the same time, the link
between terminals 11 and 12 should then be fitted. There is
then no bias between room heating and hot water heating.
Notes:-
i.
Where the link is fitted the unit will deliver 65ºC flow
temperature during periods of DHW demand and this
must be considered at system design with consideration
to this temperature feeding radiators or under floor
heating at these times.
ii.
The link cannot be fitted when the heat pump is plumbed
in to a 'W Plan' system.
Ideal airtherm - Air Source Heat Pump -
Installation
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