Sussman ES Installation, Operation And Maintenance Manual - page 9
Sussman Boilers
Installation, Operation & Maintenance Manual
9
ALL ELECTRICAL WIRING MUST BE PERFORMED BY A QUALIFIED ELECTRICIAN IN
ACCORDANCE WITH NATIONAL AND LOCAL ELECTRICAL CODES.
Assure that the power voltage and phase being supplied to the boiler matches the power
voltage and phase of the boiler. Connecting incorrect power supply can damage boiler components or
cause improper boiler operation. If the boiler power requirements do not match the power to be supplied to the boiler the
boiler must be returned to the factory for conversion. Boilers cannot be field converted.
ALL BOILERS ARE PRE-WIRED AND TESTED PRIOR TO SHIPMENT.
1.
Ground boiler according to National Electric Code requirements to avoid shock.
2.
Power wiring to boiler should be in accordance with National and Local Electrical Code requirements following wiring
diagram supplied. Use proper size wire. Wire size is specified adjacent to field wiring terminals. This label states the wire
size [AWG or MCM], minimum temperature rating (90 C) and conductor material (copper only). Deviation from these
requirements may result in improper or unsafe boiler operation.
3.
A disconnect switch employing circuit breakers or fuses should be installed between the main power source and the boil-
er. This disconnect switch should be located near the boiler and clearly marked for easy access and identification should
the boiler need to be turned off due to an emergency.
4.
Boiler control circuit is 120 Volt*. Unless boiler has an optional step down transformer, a separate 120 Volt power feed
wiring is required to be connected to the control circuit terminal block. A 15 Amp circuit is required for all boilers. If a
3/4 HP feed water motor and pump assembly is connected to the boiler, then a 20 Amp circuit is required.
5.
If a separate control circuit is used, it should be connected to the control circuit terminal block.
6.
Remote mounted water feed systems (i.e. condensate return, motor and pump) should be connected to the junction box
provided on the outside of the boiler jacket.
7.
With main power off, make sure all wiring terminations are tight to avoid arcing, carbonizing or overheating of con-
tacts.
Boilers are susceptible to lightning damage due to water line connections. An industrial type
lightning/surge protector should be installed according to the manufacturer's recommendation at the
service entrance. Consult your contractor or electrical dealer.
Substitution of components or modification of wiring system voids the warranty and may
lead to dangerous operating conditions.
Wiring
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CAUTION
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CAUTION
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WARNING