Installation / Operation Instruction Manual

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 one (1.0) inch (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 fourteen (14.0)

inches (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 three (3) inches (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.