Potterton Promax 15 HE Installation And Servicing Instructions page 19

Retaining Bracket
Wall Plate Spring Clip
Boiler
Fig. 24
Flue Products Exhaust
Fig. 25a
Supplied By www.heating spares.co Tel. 0161 620 6677
1. Remove the screw and retaining bracket from
the wall plate spring clip.
2. Offer up the boiler to the wall plate and locate
the rear bottom edge onto the self locating support
at the base of the wall plate.
3. Rotate the boiler and engage into temporary
spring retaining latch.
4. Ensure the boiler is secured with the
retaining bracket and screw previously
removed, immediately.
5. Remove thread protection caps from the FLOW
and RETURN connections.
1. The boiler has two side water connections, the
Wall Plate
front connection being FLOW and the rear
connection being RETURN.
Return Pipe Connection
2. It is essential that Flow and Return pipes are
connected to the correct fittings. The flow
connection incorporates the boiler thermostats
and a flow switch. To avoid damage to the flow
switch when tightening the flow connection the
use of two spanners is recommended.
3. A copper elbow, compression nut and olive are
provided in the kit for the return connection.
4. Ensure that any pipework is routed so as to
Flow Pipe
leave the boiler via the spaces at the rear of the
Connection
outer case, either at the top or at the bottom.
Fig. 25
Pipework within the confines of the outercase
should consist of solder fittings.
1. Connect the condensate drain using the 1"BSP
nut and seal supplied. (see section 7.8.).
8.0 Installation
8.3 Fitting The Boiler
(Fig. 24)
8.4 Making the Water Connections
(Fig. 25)
NOTE: Drain cocks should be fitted to all
system's low points and vents to all high points.
NOTE: It is important that the pipework does
not interfere with the correct fitting of the outer
case and a space of 14mm clearance must be
left between any vertical pipes and the outer
edge of the wall plate.
8.5 Making the Condensate Drain
Connection
NOTE: To ensure the correct operation and
integrity of the condensate drainage system
- Carefully pour approximately 1 cupful (250ml)
of water into the flue products exhaust, at the
top of the heat exchanger (Fig. 25a) to ensure
a seal is made in the trap.
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