Installation Instructions
_,WARNING
•The applianceand itsindividualshutoffvalvemust be discon- nectedfrom the gassupplypipingsystemduringanypressure testing of the gas system at test pressuresin excessof ½ poundper squareinch(3.$1d_).
•The appliancemustbe isolatedfrom the gassupplypipingsys- tern by dosingits individualmanualshutoff valveduringany pressuretestingof the gassupplypipingsystemat test pres- sur_ equalor lessthan _ poundper squareinch(3.SkPa).
•_,WARNING
Use pipe ioint compound or teflon tape marked as being
resistantto the actionof petro eum [Propane (LR)] gases.
SEDIMENT TRAP
A sediment trap shall be installed as close to the inlet of the water heater as practical at the time of water heater installation. The sediment trap shall be either a tee fitting with a capped nip- ple in the bottom outlet or other device recognized as an effec-
tive sediment trap. If a tee fitting is used, it shall be installed in conformance with one of the methods of installation shown
below.
Connecting the gas piping to the gas control valve of the water heater can be accomplished by either of the two methods shown.
(cont'd)
GAS PIPING WITH
FLEXIBLE | CONNECTOR |
| LOOP |
GROUND JOIN] | GAS |
CONTROL | |
UNION(OpUonaI) | VALVE |
DRIP LEG (Sediment trap)
CAP
GAS PIPING WITH ALL BLACK IRON
PIPE TO GAS CONTROL
GROUND JOINT | _ | BLACK PIPE |
|
| GAS |
|
| CONTROL |
UNION(Optional) | __ | VALVE |
|
AWARNING
Contaminantsin the gaslinesmay causeimproper operation of the gascoWa_lv':dvethat may result in fire or expioslon. Beforeattachingthe gaslinebe surethat all gaspipe isclean on the inside.To trap any dirt or foreign material in the gas supplyline, a drip leg (sometimes called a sediment trap) must be incorporated in the piping•The drip leg must be readilyaccessibleInstallin. accordancewith the "Gas Piping" section.Refer to the latest edition of the National Fuel Gas Cede, ANSI Z223.1, also referredto as NFPA 54.
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