Granby B*G-3, Инструкция по установке, эксплуатации и обслуживанию, Страница: 19 / 37

18
7.1 Gas2Fired boilers
The gas piping must be installed between the gas meter and the combination gas
valve on the boiler.
WARNING:
•
Connect from the gas supply to the burner combination gas valve inlet using
new, clean black iron pipe and malleable iron fittings only. Do not use copper,
brass, cast iron or galvanized pipe or fittings.
•
Provide support for gas piping. Do not rest weight of piping on burner gas
valve.
•
Apply pipe dope sparingly at all joints. Use only pipe dope listed for use with
propane gas. Do not use pipe sealing tape. In doubt consult CSA B149.1 or
NFPA 54 or the authorities having jurisdiction.
•
Do not hold gas valve with a pipe wrench. Use crescent wrench or other smooth
jawed device. Do not over5tighten.
•
Failure to comply with above could result in severe personal injury, death or
substantial property damage.
1. If possible, install a new gas line directly from the gas meter. If you are using an
existing gas line, verify it is clean and in good condition and verify it is large
enough to handle the load of all connected appliances. See the table below for
guidance on pipe sizes.
2. When branching from a common gas line, do not tap from the bottom or
horizontal sections, only from the side or top.
3. Install a main manual shutoff valve, sediment trap and ground joint union near the
burner combination gas valve connection as shown below.