19
istor system store -
Installation and Servicing
INSTALLATION
14 FITTING THE PRE-PIPING FRAME
1.
Using the floor template mark the
position of the appliance and the
fixing holes for the pre-piping
frame.
2.
Fasten the pre-piping frame to the
floor.
Using suitable fixing screws and
plugs dependant on the floor
material, fasten the pre-piping
frame to the floor. Take care not to
pierce any underfloor piping or
electrical wiring.
Note.
Pipe runs to the service
connections on the piping frame
must be from the front, back or
below, and not cross the side
channels of the frame, where the
appliance will slide on and stand.
15 WATER (DHW) CONNECTIONS
Domestic Hot Water Connections
Refer to the Note in Frame 14, for guidance.
IMPORTANT
Do not subject any of the isolating valves to
heat as the seals may be damaged
.
As well as the DHW supply and hot
water off-take pipes a pressure
balanced cold water supply for
mixer shower supply can be
taken from the pre-piping frame
at this stage but it MUST be
fitted with a single check valve in
a convenient location as near to
the appliance as possible.
This balanced cold water supply
should be used for mixer shower
application only. It should not be
used for general cold water
supply within the dwelling in
which the istor is installed.
Note.
It is suggested that in order to
obtain optimum performance
from the appliance, all DHW
pipework should be run in
22mm as far as is practicable.
INST
ALLA
TION
159979-7.pmd
7/14/2005, 12:44 PM
19
Summary of Contents for istor HE260
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