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After completing installation, the gas pipes must be checked for leaks and purged as
described in the standards. Gas leaks may cause an explosion that induces serious harm or
property damage. When purging, open all doors and windows, and extinguish cigarettes,
pipes or any other naked lights.
4.6 Heating system connection
This product is designed for connection to open vented wet central heating systems and sealed
systems in accordance with the manufactures specification.
The flow connection is situated at the bottom side of the unit. The return connection is situated to
the right of the flow connection. Refer to Diagram 4.4
Diagram 4.4: Flow and Return connections
Navien stirling engine m-CHP installation manual
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