Nortec GS - 5.9 Gas Connection

50 Installation
2583703_EN_1608 Nortec GS
5.9 Gas Connection
Gas piping must meet the requirements of the National Fuel Gas Code (ANSI Z223.1) in the USA, or
CAN/CGA B149 Installation Codes in Canada, or applicable gas suply pressure requirements of the
local building codes.
Refer to "Site Requirements" on page 18 for the gas supply requirements. For gas connection sizes refer
to Table 8 on page 19. In addition, refer to "Gas Connection Requirements" on page 51.
IMPORTANT! Tampering with the gas valve, without the express consent of Nortec, will void the
warranty.
5.9.1 Gas Connection, Compact and Full-Size Unit
Figure 23:
1
2
3
4
4
2
7
3
5
5
6
Gas Connection
1 Inlet, gas, NPT female (full-size unit) – see note below
2 Fitting, union (not supplied)
3 Valve, manual gas shutoff (not supplied)
4 Trap, sediment (not supplied)
5 Stainless steel section of gas pipe (at nal connection)
6 Maintenance access for drain pump – do not obstruct
7 Inlet, gas, NPT female (compact unit)
Note: For Nortec GS 450/600 only, the gas line connects to a 1-1/4 to 1 in NPT adaptor (supplied) at the gas connection.