Electrical Wiring; Electrical Wiring Requirements; Thermostat Installation - Dunkirk XEB-4 Installation, Operation & Maintenance Manual

!
WARNING
Electrical shock hazard. Turn OFF electrical power
supply at service panel before making electrical
connections. Failure to do so could result in death or
serious injury.
11�1 Electrical Wiring Requirements
See wiring diagram Figure 12 for details. Refer to
Ladder Diagram from document envelope received
with boiler.
Electrically bond boiler when installed to ground in
accordance with requirements of authority having
jurisdiction or in the absence of such requirements, with
the National Electrical Code, ANSI/NFPA 70
If any of the original wire as supplied with this appliance
must be replaced, it must be replaced with type 105°C
thermoplastic wire or its equivalent
Circulator harness is factory wired to control module.
Connect harness to circulator in field. See Figure 11.
Electric Power Supply
Run a separate 115 volt circuit from separate over current
protective device 15 ampere circuit in electrical service
entrance panel.
Refer to parts manual for LWCO kit. When using LWCO
other than kit listed in parts manual follow specific LWCO
Figure 11 - Control Module Panel
TRANSFORMER

11 - ELECTRICAL WIRING

TRANSFORMER
SECONDARY
THERMOSTAT
WIRES
manufacturer instructions.
Connect 115 volt power supply to terminals L1 (HOT) and
L2 inside J box on right side panel.
Run 14 gauge or heavier copper wire from boiler to
grounded connection in service panel or properly driven
and electrically grounded ground rod.
11�2 Thermostat Installation
1. Thermostat should be installed on an inside wall about
four feet above the floor.
2. NEVER install a thermostat on an outside wall.
3.
Do not install a thermostat where it will be affected
by drafts, hot or cold pipes, sunlight, lighting fixtures,
televisions, a fireplace, or a chimney.
4. Check thermostat operation by raising and lowering
thermostat setting as required to start and stop the
burners.
5. Instructions for the final adjustment of the thermostat
are packaged with the thermostat (adjusting heating
anticipator, calibration, etc.)
6. Set heat anticipator at .2 amps. 24 volt thermostat
connects to yellow low voltage wires labled T-T.
BLOWER
24
CIRCULATOR
TRANSFORMER LINE VOLT
PN 240013099 Rev. A [08/15/2020]
HARNESS