4
TNR-I&S-02
CAUTION
If sweat fittings are to be used, DO NOT apply heat to the nipples in
front or side of the water heater. Sweat the tubing to the adapter
before fitting the adapter to the water connections. It is imperative
that heat is not applied to the nipples containing a plastic liner.
WARNING
Failure to install and maintain a new, listed temperature and pressure
relief valve will release the manufacturer from any claim, which might
result from excessive temperature and pressures.
Hydrogen gas can be produced in an operating water heater that has
not had water drawn from the tank for a long period of time (generally
two weeks or more). HYDROGEN GAS IS EXTREMELY FLAMMABLE. To
prevent the possibility of injury under these conditions, we recommend
the hot water faucet to be open for several minutes at the kitchen sink
before you use any electrical appliance, which is connected to the hot
water system. If hydrogen is present, there will be an unusual sound
such as air escaping through the pipes as hot water begins to flow. Do
not smoke or have open flame near the faucet at the time it is open.
Keep clear of the combination temperature and pressure relief valve
discharge line outlet. The discharge may be hot enough to cause scald
injury. The water is under pressure and may splash.
WATER CONNECTIONS
INSTRUCTIONS FOR CONNECTIONS
1. BEFORE PROCEEDING WITH THE INSTALLATION, CLOSE THE MAIN
WATER SUPPLY VALVE. After shutting off the main water supply,
open a faucet to relieve the water line pressure to prevent any
water from leaking out of the pipes while making the water
connections to the water heater. The COLD water inlet and HOT
water outlet are identified on the water heater. Make the proper
plumbing connections between the water heater and the plumbing
system to the house. Install a shut-off valve in the cold water
supply line.
2. If this water heater is installed in a closed water supply system, such
as the one having a back-flow preventer in the cold water supply,
provisions must be made to control thermal expansion. DO NOT
operate this water heater in a closed system without provisions for
controlling thermal expansion. Warranties do not cover damages
Figure 6 Typical Four Water Heater Connection
Figure 3
Typical Front Inlet Connect with Storage Tank
Figure 5
Typical Three Water Heater Connection
Figure 4
Typical Two Water Heater Connection
