Install Instructions

Gas Connections

The gas supply lines must meet all requirements of the National Fuel Gas Code

(ANSI Z223.1-Latest Edition), or in Canada CAN/CGA B149.1 Natural Gas

Installation Code (Latest Edition) or CAN/CGA B149.2 Propane Installation Code

(Latest Edition).

The minimum permissible gas supply pressure for the purpose of input adjustment

is 1 in. (0.25 kPa) water column above the operating manifold pressure. See the

rating plate and gas valve for the manifold pressure and gas type. The maximum

permissible gas supply pressure is 14 in. (3.5 kPa) water column for natural gas

and liquefied petroleum gases/propane gas.

1. Connect this water heater only to the type of gas (Natural or Propane gas) as

shown on the rating plate. Use clean black iron pipe or equivalent material

approved by local codes and ordinances (dirt and scale from the pipe can enter

the gas valve and cause it to malfunction). The inlet gas line must have a

minimum length of 3 in. (7.6 cm) drip leg (sediment trap) installed as close to

the water heater’s gas valve as possible. A ground joint union must be installed

as close to the water heater as possible in the gas supply line feeding the

water heater to permit servicing of the water heater. Compounds used on the

threaded joints of the gas piping must be resistant to the action of liquefied

petroleum gases/propane gas. DO NOT apply pipe dope to the gas valve inlet

and make certain that no pipe dope has become lodged in the inlet screen of

the gas valve. Extreme care must be taken to ensure no pipe dope enters the

gas valve. Avoid excessive torque when tightening the gas supply line to the

gas valve. Excessive torque may result in cracking of the gas valve housing

and could create a gas leak. The suggested maximum torque is 31.5 ft. lbs.

(4.4 kg-m).

2. This water heater and its gas connection must be leak tested before placing the

water heater in operation. Check for gas leaks with a soap and water solution

and a brush or a commercial leak detector fluid. NEVER USE A MATCH OR

OPEN FLAME FOR TESTING!

WARNING

Prior to connecting the gas supply line to a gas fired water heater, ensure that

the gas supply line DOES NOT have moisture/water or dirt/scale inside the gas

line. Commonly this check is done at the lowest point in the gas distribution

system prior to gas burning appliances.

WARNING

The manufacturer of this water heater will not be liable for any damage or injury

caused as a result of a cracked gas inlet as a result of excessive torque.