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5.3
Connecting the heating circuit
Fig.43
Connecting the heating circuit
2
1
3
1
4
5.4
Connecting the condensate discharge pipe
Fig.44
Connecting the condensate
discharge pipe
2
1
5.5
Connecting the gas pipe
Fig.45
Connecting the gas pipe
3
2
7734324 - v.07 - 21092022
For boiler Gas 620 Ace, apply the instructions to each boiler module.
1. Remove the dust caps from the flow and return connections.
2. Connect a safety valve to the flow connection.
3. Fit the system flow pipe to the flow connection.
4. Fit the system return pipe to the return connection.
AD-3001428-01
For boiler Gas 620 Ace, apply the instructions to each boiler module.
1. Remove the protective cap from the condensate connection.
Caution
Water from the factory test may come out.
2. Fit the siphon by screwing the swivel nut onto the connection.
3. Fit a plastic drain pipe of Ø 32 mm or larger to the siphon, terminating
in the drain.
3
AD-3001429-01
For boiler Gas 620 Ace, apply the instructions to each boiler module.
The gas pipe must be free of dirt and dust. The boiler is fitted with a gas
filter as standard.
Warning
Before starting work on the gas pipes, turn off the main gas tap.
1. Remove the dust cap from the gas connection
2. Fit a gas valve near the boiler.
3. Fit the gas supply pipe to the gas supply
1
AD-3001427-01
5 Installation
.
.
33
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