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Installation and Servicing
SECTION 2 - INSTALLATION
INSTALLATION
2.19 CONNECTIONS & FILLING
Note. The domestic hot water ow rate is
automatically regulated to a maximum:
35 = 14.5 l/m (3.2 gpm)
NOTES.
Ensure all boss blanking plugs are removed before connecting hardware.
Ensure each union is tted with bre seals provided.
Do not subject any of the isolating valves to heat as the seals may be
damaged.
WATER CONNECTIONS CH
1. Connect the CH ow service valve to the threaded boss
connection at the lower rear of the boiler.
2. Connect the CH return service valve to the threaded boss
connection at the lower rear of the boiler.
WATER CONNECTIONS DHW
1. Fit the DHW inlet service valve to the threaded boss
connection, ensuring the seal is correctly located.
2. Fit the DHW outlet pipe tail to DHW outlet connection,
ensuring the seal is correctly located.
3. Fit the lling assembly between the DHW inlet valve and
the CH return valve.
GAS CONNECTION
IMPORTANT. The gas service cock is sealed with a non-
metallic bre washer, which must not be overheated when
making capillary connections. Refer to Section 1.16 & 1.17 for
details of the position of the gas connection.
For additional gas supply info refer to “Gas Supply” on page 9.
SAFETY VALVE DRAIN
The safety valve connection, located at the bottom right-
hand side of the boiler, comprises a 1/2” female threaded
connector.
The Installer to provide a compression joint on the end
of the stub pipe. This assists with pipe removal when
servicing.
The discharge pipe should be positioned so that the
discharge of water or steam cannot create a hazard to
the occupants of the premises or damage the electrical
components and wiring.
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