Potterton Promax 15 HE Installation And Servicing Instructions page 13

Fig. 15
Supplied By www.heating spares.co Tel. 0161 620 6677
7.5
1. Where the boiler is installed in a cupboard or
compartment, no air vents are required for cooling
purposes providing that the minimum dimensions
below are maintained.
2. The label on the front of the outercase should
not be removed.
3. Any compartment should be large enough to
house the boiler only.
7.6
1. The gas installation should be in accordance
with BS6891.
2. The connection to the appliance is a
internal threaded connection located at the rear of
the gas service cock (Fig. 15).
3. Ensure that the pipework from the meter to the
appliance is of adequate size.
(22mm pipework must be connected to the
appliance gas service cock. This should extend for
at least 3 meters back towards the gas meter).
Do not use pipes of a smaller diameter than the
boiler gas connection.
7.7
1. External wiring must be correctly earthed,
polarised and in accordance with current I.E.E.
W
2. The mains supply is 230V ~ 50Hz fused at 3A.
Gas Service Cock
7.8
1. The condensate outlet terminates in a 1" BSP
nut and seal for the connection of 21.5mm (
plastic overflow pipe which should generally
discharge internally into the household drainage
system. If this is not possible, discharge into an
outside drain is acceptable.
2. The pipe should run internally as much as
possible and with a 10° (1 in 6) fall to dispose of
condensate quickly to avoid freezing.
7.0 Site Requirements
Ventilation of Compartments (Fig. 14)
Sides 15mm
Top 200mm
Bottom 130mm
Front 30mm
Gas Supply
Electrical Supply
R .
IRING EGULATIONS
NOTE: The method of connection to the
electricity supply must facilitate complete
electrical isolation of the appliance. Connection
may be via a fused double-pole isolator with a
contact separation of at least 3mm in all poles
and servicing the boiler and system controls
only.
Condensate Drain
NOTE: Ensure the discharge of condensate
complies with any national or local regulations
in force.
1 / in BSPT
2
3 / in)
4
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