Atag XL75W - Connecting the Boiler

24
Installation
Connecting the boiler
1-2. Keep the cap on the connections
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return headers:
Flow and return: 2" blind cap with
gasket (2 items/boiler).
Gas: 1 ¼" blind cap with gasket
(1 item/boiler).
For connections, use the supplied
gaskets. Check all connections for
leakage and gas-tightness.
3. Connecting the isolation valves to
the boiler:
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with red handle.
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isolation valve with blue handle.
The boiler is supplied with a 3 and
6 bar safety valve.
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bar safety valve due to the control
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6 bar.
Gas: 1¼" gas isolation valve.
Dirty test water may be released
when removing the plastic caps
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supplied gaskets. Check all
connections for leakage and
gas-tightness.
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return headers:
Flow: 45mm pipe pieces with
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Return: 45mm pipe pieces with
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supplied gaskets. Check all
connections for leakage and
gas-tightness.
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