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6. Installation
6.1 General
After reading the previous sections in this booklet and
choosing a suitable location for the appliance please
install, paying attention to the following water, electrical
and commissioning sections.
Mounting the water heater
The water heater should be mounted using the brackets
supplied and in the steps stated below:
The top bracket bolts (3 off) require mounting to
`
the unit. Note the location of the bolt holes used for
the vertical units as well as which way up the unit
should be mounted.
The top bracket bolts should be screwed all the
`
way into the hole until they stop and stick out 8mm
as shown in figure 4.
Secure the top bracket to the wall using appropriate
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fixings. Ensure it is fitted the correct way up.
Locate the appliance top bracket bolts (3 off) in
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the corresponding slots in the wall bracket. Ensure
they are fully engaged and seat correctly (figure 4).
Secure the lower bracket to the wall.
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8 ±1.5 mm
Figure 4: Top Bracket
10
Figure 5: Lower Bracket
6.2 Water connections
WARNING
Under no circumstances should the
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factory
Relief Valve be removed other than
by a competent person. To do so will
invalidate any warranty claim.
The cold water controls supplied MUST
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be fitted on the mains water supply to
the appliance.
No control or safety valves should be
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tampered with or used for any other
purpose.
The discharge pipe should not be
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blocked or used for any other purpose.
The tundish should not be located
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adjacent to any electrical components.
Refer to the installation schematic (figure 6, page 11)
for details on the pipework layout. Specific details for
the discharge pipework layout is also provided in figure
7 on page 14.
The appliance is supplied with a Pressure
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Reducing Valve, Check Valve, Expansion vessel
and Expansion (Pressure) Relief Valve.
All pipe fittings are made via 22mm compression
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fittings directly to the water heater. Fittings are
threaded 3/4"BSP male parallel.
A stopcock or servicing valve must be incorporated
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into the cold water supply to enable the water
heater and its associated controls to be isolated
and serviced. See figure 6 for position.
The expansion vessel must be connected between
`
the check valve and the appliance.
The location of the expansion vessel should allow
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access to recharge the pressure as and when
necessary (see page 18). See figure 6 page 11 for
positioning.
An expansion vessel wall mounting bracket is
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fitted
Temperature/Pressure
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