2.In order to service the water heater in the event the heat exchanger needs to be flushed from lime deposits, tee fittings with shut off valves and service connections to hoses should be installed. Also install a shut off valve to the hot water supply to isolate the service tee fittings. A plumbing installation kit, which includes these fittings and a pressure relief valve, is available from your supplier. Refer to piping diagrams (fig.
3.Install a pressure relief valve on a tee connection from the hot water outlet piping from the water heater. Refer to the piping diagrams (fig.
4.In cold climates where piping can freeze during an extended power failure, drain solenoid valves should be installed on the cold and hot water supply lines to allow water to drain from the water heater when power is interrupted. Refer to the piping diagram “Recommended Piping for Power Failure Freeze Protection” (fig. 3) at the end of this Water Connections Section and contact your Bradford White dealer if assistance is needed.
5.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.
6.Purge the cold water line prior to connecting to the water heater to remove debris. Debris will clog the mesh strainer of the inlet filter. The inlet strainer prevents debris from damaging the flow sensor or clogging the coil. It may need to be cleaned periodically and should be cleaned after the installation. DO NOT operate the water heater without the filter in place.
7.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.
8.This water heater may also be connected to a circulating pump or storage tank for increased flow capacity during high demand periods. Refer to the suggested piping diagrams (fig.
9.Commercial installations may require more than one water heater piped together in a manifold to supply enough capacity for high temperature and high water flow applications. Special controls are available from your Bradford White supplier for operating more than one water heater together. These controls stage the operation of the water heaters for the flow rates and control the amount of flow through each water heater. Order part#
NOTICE
Take care when using pipe dope or Teflon tape to avoid clogging the inlet screen and water flow sensor. Wipe off excess pipe dope from threads before connecting to the water heater.
Commercial dishwashers will require either more than one water heater or a storage tank to supply a sufficient volume of hot water.
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