Installation / Operation Instruction Manual

ELECTRICAL CONNECTIONS
This water heating unit must have its own independent circuit using
insulated, UL listed, 3 wire cable of the appropriate size suitable
for use up to 75
o
C protected by the correctly rated circuit breaker.
RATINGS OF “ EFC ” UNITS
* Units rated at 240 Volts. Units can operated at 220V or 208V with reduced output.
Wire entry into the unit should be made through the lower right hand corner of
the backplate via one of the two “knockout” holes provided.
The “mains” wires should be connected to the slots in the terminal block marked
L1 and L2 (N). The ground lead must be connected to the slot marked .
Failure to ground the system may result in death or serious injury.
WARNING
BEFORE BEGINNING ANY WORK ON THE INSTALLATION
BE SURE THAT THE CIRCUIT BREAKER IS “OFF”
TO AVOID ANY DANGER OF SHOCK.
FIGURE 2
TO
APPROPRIATE
SIZE CIRCUIT
BREAKER
OUTLET VALVE (B)
(ADJUST TO PROVIDE
DESIRED OUTLET WATER
TEMP.)
INLET VALVE (A)
(FULLY OPEN)
L1 L2 (N)
UP
INSTALL
THIS WAY UP
ONLY !
WIRE ENTRY
EITHER THROUGH
REAR OR
BOTTOM
KNOCK-OUTS
MOUNTING HOLES
4 1/4 inches
8 inches
APPROPRIATE
GAUGE 3 LEAD
COPPER WIRE
WARNING:
This water heater must not be switched “on” if there is
a possibility that the water in the heater is frozen.
240 3,500 W 15 48 32 24
EFC-5500-S-10 240 5,500 W 23 75 50 37
EFC-6500-S-10 240 6,500 W 27 88 59 44
EFC-7500-S-10 240 7,500 W 31 - 68 51
EFC-9500-S-10 240 9,500 W 39 - 86 65
EFC-6000-S-10 277 6,000 W 22 81 55 41
EFC-8000-S-10 277 8,000 W 29 - 73 55
EFC-9000-S-10 277 9,000 W 33 - 82 61
EFC-10000-S-10 277 10,000 W 36 - 91 68
EFC-8300-S-10 208 8,300 W 39 - 76 57
TABLE 1.