Instinct Installation Manual

CHAPTER 7 - GAS PIPING
29
WARNING
7.1. Gas Supply Piping Connection
NOTICE
Do not check for gas leaks with an open flame. Use
a gas detection device or bubble test. Failure to
The gas supply piping must be installed in
accordance to all applicable local, state, national
codes, and utility requirements.
1. Install a 3/4” NPT for INSTINCT pipe union at the gas
nipple, for ease of service.
2. Install a manual shutoff valve in the gas supply piping as
shown in Fig. 15 above. For installations in Canada, the
installer must tag and identify the main shutoff valve.
3. Install a sediment trap (drip leg) on the gas supply
line prior to connecting to the INSTINCT gas train
as shown in Fig. 15 above.
4. Support the gas piping using hangers. Do not
suppor t the piping b y the unit or its components .
5. P ur ge all air fr om the gas supply piping .
6. Before placing the INSTINCT into operation, check
and test all connections for leaks.
• Close the manual shutoff valve during any
pressure test with less than 13”w.c.
• Disconnect the INSTINCT and its gas valve from
the gas supply piping during any pressure test
greater than 13”w.c.
check for gas leaks can cause substantial property
damage, serious injury, or death.
7. Use pipe dope compatible with natural and
propane gases. Apply sparingly only to the male
threads of pipe joints so that pipe dope does not
block
gas flo w .
• Failure to apply pipe dope as detailed above
can result in substantial property damage,
serious injury, or death.
• Use a two-wrench method when tightening
fieldpipingonto theboiler pipingconnections.
Use one wrench to prevent the boiler
connections from turning and the second
to tighten field piping. Failure to support
the boiler piping connections could damage
piping, causing a leak, resulting in substantial
property damage, serious injury, or death.
Gas Flow
T ar g et =
186°F
External Manual
Gas Shut Off
Valve (Must Be
Within
6” of the
Boiler )
Ion-ic
186°F
DHW
156°
Tee Fitting
Union Fitting
Sediment Trap
Min. Length of 3"
Cap
Fig. 15 - Recommended Gas Supply Piping
WARNING
CHAPTER 7