Water Connections - Bradford White Magnum D75T125E3N Installation & Operation Manual

Gas-fired commercial water heater
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NOTE: 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. After the pressure has been relieved, close the
faucet. The COLD water inlet and HOT water outlet are identified on the top and front of the water heater. Make sure the
diptube is in place before making the cold water connection. 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.
If sweat fittings are to be used, DO NOT apply heat to the nipples on top or side of the water heater. Sweat the tubing
to the adapter before fitting the adapter to the water heater connections. It is imperative that heat is not applied to the
nipples containing a plastic liner.
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
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 from thermal
expansions such as pressure bulges and/or deformities. Your water supplier or local plumbing inspector should be
contacted on how to control this situation.
After installation of the water lines, open the main water supply valve and fill the water heater. While the water heater is
filling, open several hot water faucets to allow air to escape from the water system. When a steady stream of water flows
through the faucets, close them and check all water connections for possible leaks. NEVER OPERATE THE WATER
HEATER WITHOUT FIRST BEING CERTAIN IT IS FILLED WITH WATER.
SECTION VI: WATER CONNECTIONS
.
APPROXIMATE TIME/TEMPERATURE RELATIONSHIPS IN SCALDS
120° F (49° C)
125° F (52° C)
130° F (54° C)
135° F (57° C)
140° F (60° C)
145° F (63° C)
150° F (66° C)
155° F (68° C)
CAUTION
WARNING
NOTICE
More than 5 minutes
1½ to 2 minutes
About 30 seconds
About 10 seconds
Less than 5 seconds
Less than 3 seconds
About 1½ seconds
About 1 second
17

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