Operating The Water Heater - Bradford White EFT-18000-2-T-10 Installation Manual And Owner's Manual

OPERATING THE WATER HEATER

WARNING
HOUSEHOLDS WITH SAMLL CHILDREN OR ELDERLY PERSONS MAY
REQUIRE WATER TEMPERATURES OF 125°F(52°C) OR LOWER TO
PREVENT ACCIDENTAL SCALDING FROM CONTACT WITH THE
WATER
1) Completely open both the inlet and outlet valves at the unit.
2) Open all hot water outlets serviced by this unit. If the outlet is a mixer type adjust to the hottest position.
Run flow until flow is continuous at all the outlets. When the flow is continuous at all serviced outlets,
proceed to the next step.
3) Switch on electric supply at the circuit breaker panel. The indicator light on the unit should now
illuminate.
4) Using the outlet BALL VALVE, slowly reduce the water flow until the desired water temperature is
achieved at the hot water outlet. This should be 120°f(49°c) to 140°f(60°c) without mixing with cold water.
5) Turn the temperature adjustment screw counter clockwise about 1/8 of a turn. After 10-15 seconds, the
power indicator light should be pulsing. If it does not, turn the screw counter-clockwise another 1/8 of a turn.
Wait 10-15 seconds for the indicator light to begin pulsing. Repeat process until the indicator light is pulsing
regularly. This indicates that the water temperature has stabilized at the set temperature. Check that the
temperature is what is required. The thermostat is now set and the water temperature will remain constant
when the indicator light is pulsing.
6) Check the performance of the flow switch by opening and closing the faucet a few times.
THE POWER INDICATOR LIGHT SHOULD ONLY ILLUMINATE WHEN WATER IS FLOWING
TROUGH THE UNIT.
NOTE: An EFT-9500-S-10 (9.5 kw) unit at 240v will deliver 1 gallon per minute at 65°F(18°C) rise in
temperature. For example, with an incoming water temperature of 55°F(13°C) the unit will produce 1 gallon
per minute at 120°F(49°C)
A flow rate of 1 gallon per minute will fill a 1 gallon "milk" container in 60 seconds.
7) For accurate water temperature control a mixer type faucet(single spout), the cold water supply to the
faucet should be restricted to give approximately the same flow rate of cold water to the faucet as the hot
water exiting the unit. The simplest method of achieving this is by partially closing the cold water valve
under the sink.
8) It is possible that drawing off cold water at comparatively high rates of flow elsewhere in the building at
the same time that the unit is working, could starve the unit of cold water. Care should be taken to avoid this
from occuring as premature element failure may result. Completely open the main valve on the cold supply
to the building and throttle back the control valvues to the other cold water outlets.