Technical data

13
Fig. 13
Fig. 14
Hot water outlet
Cold water inlet
stopcock/filling
valve
Gas
cock
Filling loop
C/H flow
valve
C/H return
valve
Safety
valve outlet
Fig. 12
4.6 CONNECTING THE GAS AND WATER
IMPORTANT - REAR SPACER KIT
If you intend to run the pipework vertically behind the appli-
ance, it will be necessary to use the rear spacer kit (part code
435). It will also be necessary to adjust the pitch of the fixing
jig to compensate for the increase in the depth of the appliance.
The appliance is supplied with a fixing jig that includes service
valves (fig. 14). The service valves are of the compression
type. The accessories pack contains sealing washers etc, for
use with the service valves.
When connecting pipe work to the valves, tighten the compression
end first then insert the sealing washers before tightening the valve
to the appliance.
The appliance is supplied with an accessory pack that includes
service valves.
The service valves are for welding. The accessory pack contains
sealing washers’ etc, for use with the service valves.
NOTE
It will be necessary to hold the valve with one spanner whilst
tightening with another
4.6.1 GAS (fig. 14)
The appliance is supplied with a 15mm service valve, connect a
15mm pipe to the inlet of the valve and tighten both nuts.
NOTE
It will be necessary to calculate the diameter of the gas supply pipe
to ensure the appliance has an adequate supply of gas.
4.6.2 FLOW & RETURN (fig. 14)
The appliance is supplied with 22mm service valves for the flow and
return connections, connect a 22mm pipe to the inlet of each valve
and tighten both nuts.
NOTE
Depending on system requirements, it may necessary to increase
the size of the flow & return pipe work after the service valve
connections.
4.6.3 COLD WATER INLET (fig. 14)
The appliance is supplied with a 15mm combined stopcock and
double check-valve, connect a 15mm pipe to the inlet of the
stopcock and tighten both nuts.
4.6.4 HOT WATER OUTLET (fig. 14)
The appliance is supplied with a 15mm outlet connection, connect
a 15mm pipe to the outlet connection and tighten both nuts.