Service manual

Draft Diverter- This water heater has been shipped with a draft diverter for which it was designed with reference to the horizontal and vertical
planes. If removed, the draft diverter shall be replaced in the same position and secured to the jacket top by the screws with which it was installed.
Vent Piping- This water heater must be connected to a masonry chimney or venting system approved by local codes or ordinances. The vent
connector used to attach the draft diverter outlet to the chimney or approved vent must be of the same diameter as the draft diverter outlet or
larger. For proper venting in certain installations, a larger vent connector may be needed. Consult venting tables in National Fuel Gas Code ANSI
Z223.1/NFPA 54 latest or current or local code officials for proper application in your area.
Do not turn on electrical power to water heater until flue damper is installed and the water heater is filled with water.
Better combustion is achieved by avoiding numerous elbows in the vent piping. Horizontal piping must be sloped upward at least 1/4 inch per linear
foot of length. All connections in venting system must be securely fastened with sheet metal screws or other approved method. Check local codes
and ordinances.
Failure to install a proper venting system can result in fire, injury, or death.
WATER CONNECTIONS
Installation- Refer to Figure 5 for typical installation. Connect the hot and cold water supply to the water heater, hot to the location marked
"HOT" and cold to the location marked "COLD". Note: If making cold water connection on top, determine that the dip tube is in place. If sweat
connections are used, sweat tubing to adapter before attaching adapter to the top cold water inlet as it may contain a nonmetallic dip tube. When
making these connections, use a good grade of pipe joint compound. Be familiar with the location of the shut-off valve in the cold water line feeding
the water heater (See Figure 5). If a valve is not present, one shall be installed as shown in Figure 5.
Do not install a check valve or other device that would prevent reverse flow of water ("closed system") unless required by local codes. A closed
system will result in frequent operation of the relief valve. Provisions must be made for protection against thermal expansion in the event of a closed
system (Page 1). Warranties do not cover pressure bulges and/or deformities.
This water heater is capable of delivering high temperature hot water at any faucet in the system. Care must be taken whenever using
hot water to avoid scalding injury. Certain appliances require high temperature hot water (such as dishwashers and automatic clothes
washers). In order to prevent potential scald injury, install an anti-scald tempering valve in the water system.
CAUTION
7 8
GAS PIPING
Use clean black iron pipe or equivalent material approved by local codes and ordinances for gas piping. Install a ground-joint-union in the supply line
as close to the 'water heater as possible. A manual gas shut-off valve should be above floor level and readily accessible. A drip leg (consisting of a pipe
tee, 4 inch nipple, and a cap) should be installed as shown in Figure 5.
Make sure the gas supplied to the heater is the same type as listed on the rating plate. DO NOT ATTEMPT TO USE THIS WATER HEATER WITH
ANY GAS OTHER THAN THE TYPE LISTED ON THE RATING PLATE.
Compound used for the connection of all gas piping should be resistant to the action of liquefied petroleum (L.P.) gases. Apply pipe dope sparingly
to the male threads only. DO NOT apply pipe dope to the gas valve inlet. Make certain that no pipe dope has become lodged in the inlet screen of
the gas valve. This will restrict the flow of gas. When attachment of gas piping to gas valve inlet is made, extreme care must be taken to prevent pipe
dope from entering the gas valve inlet and to avoid excessive torque to prevent cracking of the gas valve inlet housing. The suggested maximum
torque is 31.5 ft. lbs. The manufacturer of this water heater will not be liable for any damage or injury caused as a result of a cracked gas inlet from
excessive torque.