Bradford-White Corp MAGNUM Series Commercial Electric Booster manual Plumbing Connections, Inlet

				INSTALLATION
Plumbing Connections				Inlet
Use the following procedures to connect the inlet and outlet				(Refer to Figure 5, 6, or 7)
water lines as well as inspect the system once the plumbing				1. Connect the booster water heater inlet to a hot water
connections are complete.				supply line from the regular water heater. Water
				temperature from the regular water heater should be 110°
		WARNING		or 140°F (43° or 60°C) and should not exceed 160°F
				(71°C). Minimum temperature differential between inlet and
Do not connect an expansion tank of any type to booster
				outlet should never be less than 20°F (11°C).
water heater lines.				NOTE: The red mark on the inlet and outlet water pipes of
Use only plumbing material suitable for a minimum water
				Magnum Series units must remain in the top most
temperature of 200°F (93°C). Materials used must meet				position.
National Sanitation Foundation (NSF) specifications and				2. Provide the inlet line with a shut-off valve, (a full opening
all local plumbing codes and regulations.
				gate or ball type), one temperature/pressure gauge, and
				the pressure reducing valve. Set pressure reducing valve
		CAUTION
				at 20 psi (138 kPa) flow pressure.
Do not connect booster water heater			directly to a boiler or	NOTE: A 3/4" union and a drain valve are required
furnace coil or any other uncontrolled temperature
source. The booster heater thermostat could be damaged				for easy servicing.
causing unit to overheat.				NOTE: Be sure water flows through the pressure reducing
Do	not connect booster water heater to domestic			valve in the proper direction. Check directional arrow.
(consumer) dish machines or other domestic utilized				Valve will reduce pressure only during flow conditions.
equipment. Hot water from booster heater may damage				NOTE: An optional back pressure relief valve is available for
domestic equipment resulting in a hazardous condition.				installation on the water inlet line when local plumbing
				codes require a check valve.
		NOTICE		3. Install a temperature/pressure gauge in both the inlet and
Use dielectric couplings when connecting dissimilar				outlet lines. Install the temperature sensing bulb in the
metals, such as galvanized to copper. This will prevent				water stream. The gauge must be mounted upright (see
electrolysis or premature plumbing damage.				Figures 8 and 9).
DO	NOT turn or adjust inlet water connection on Magnum			NOTE: Tighten gauge during installation by only turning the
Series booster water heaters. Doing so will change the				1/2" brass nut. DO NOT turn the face of the gauge.
internal water flow.				Turning the face will cause inaccurate measurements.
Do	not back out or loosen any pipe fittings. Doing so may
cause leaks.
Do	not lay unit on the side with the control panel. Damage
to the unit could occur.
Incoming water in excess of 3 grains of hardness per
gallon (GPG) (0.75 grains of hardness per liter [GPL]) must
be treated and softened before being supplied to booster
heater(s). Water containing over 3 GPG (0.75 GPL) will
decrease efficiency, increase energy use, and reduce the
operating life of the unit through increased lime build-up.
Product failure caused by liming or sediment buildup is
not covered under warranty.
Do	not use deionized or reverse osmosis (R.O.) treated
water in booster water heaters. Damage to booster heater
may occur.
NOTE: Product failure caused by liming or sediment buildup is
	not covered under warranty.

Form No. EBOOSTERBWM-1009 9