CIRCUIT
BREAKER
WHITE
GROUND
BLACK
GREEN
A B
C
VOLT-OHM
METER
SECTION I: ELECTRICAL POWER CONNECTIONS
Installations must follow these codes:
·
National Electrical Code and any other national, state, provincial or local codes or regulations having jurisdiction
·
Safety wiring must be N.E.C. Class 1
·
Heater must be electrically grounded as required by N.E.C.
·
In Canada, C22. 1
The heater is wired for 120 Volts, 12 AMPS. The voltage is indicated on the tie-in leads. Consult the wiring diagram shipped
with the heater in the instruction packet. The remote tank control stat, thermostat, or electronic heater control as applicable,
may be connected to stage selector terminal (See wiring diagram). 24 Volts are supplied to this connection through the heater
transformer. DO NOT attach line voltage to the “TH” leads. Before starting the heater check to insure proper voltage to the
heater and pump.
Install a separate disconnect means for each load. Use appropriate-sized wire as defined by NEC, CSA and/or local code. All
primary wiring should be 125% of minimum rating.
It is strongly recommended that all individually-powered control modules and the heater should be supplied from the same
power source.
SURGE PROTECTION
Microprocessor-based and solid state controls are vulnerable to damage from voltage and amperage fluctuations in the
power supply. All sensitive control components should be protected by a suitable commercial-grade surge protection device.
If any of the original wire as supplied with the heater must be replaced, it must be replaced with 105°C wire or its equivalent.
CHECK THE POWER SOURCE
Using a volt-ohm meter (VOM), check the following voltages at the circuit breaker panel prior to connecting any equipment:
Make sure proper polarity is followed and house ground is proven.
FIGURE I-1
CHECK POWER SOURCE
AC = 108 Volts AC Minimum, 132 Volts AC MAX
AB = 108 Volts AC Minimum, 132 Volts AC MAX
BC = < 1 Volt AC
21
Fig. # 9237
Summary of Contents for 122-322
Page 6: ...HI DELTA COMPONENT LOCATION 6 BACK LEFT SIDE FRONT See detail page 7 See detail page 7 ...
Page 7: ...7 General Information GasValve Detail Air Shutter Adjustment ...
Page 17: ...17 SINGLE HEATER DOMESTIC HOTWATER WITH ONE STORAGE TANK ...
Page 35: ...DIRECT VENT Vertical Venting Category I VERTICALVENTINGTABLE 35 SECTION J 4 ...
Page 41: ...41 WIRE DIAGRAM MODELS 122 322 Reference Drawing Number M152564C ...
Page 50: ...Fig 241093 50 ...
Page 51: ...51 HEATEXCHANGERDETAIL ...
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