22
Installation
Connecting the boiler
1-2. Keep the cap on the connections
that are not used on the pipe work
headers:
Flowandreturn:2"blindcapwith
gasket(2items/boiler).
Gas:1¼"blindcapwithgasket
(1item/boiler).
For connections, use the supplied
gaskets. Check all connections for
leakage and gas-tightness.
3. Connect the valves to the pipe work
headers:
Flow:45mmpipepieceswith2"at
coupling,2"atcouplingisolation
valve with red handle.
Return: 45mm pipe pieces with 2"
atcoupling,2"atcouplingtting
crossunionwithll/drainvalveand
isolationvalvewithbluehandle.
Theboilerissuppliedwitha3and
6barsafetyvalve.
ELCOrecommendttingthe
6barsafetyvalveduetothecontrol
settingsshuttingtheboileroat
6bar.
Gas: 28mm short gas pipe with
11/4"atsealingand28mm
compressionttingwith1¼"gas
isolation valve.
Polluted test water may be released
when removing the plastic caps on
the boiler ow and return.
For connections, use the supplied
gaskets. Check all connections for
leakage and gas-tightness.
4. Connectthepipestotheboiler:
Flow:45mmpipepieceswith2"at
coupling.
Return: 45mm pipe pieces with
2"atcoupling.
Gas:28mmpipepiecewith1¼"at
coupling.
5. Connect the pipes to the valves
Flow: 45mm pipe pieces with
2"atcoupling.
Return: 45mm pipe pieces with 2"
atcoupling.
Gas:28mmpipepiecewith1¼"at
coupling.
For connections, use the supplied
gaskets. Check all connections for
leakage and gas-tightness.
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