106636-04 - 8/22
17
X-2
Installation, Operating & Service Manual
1. Install wiring so boiler is electrically bonded
to ground in accordance with requirements of
authority having jurisdiction, or in absence of such
requirements, with the
National Electrical Code,
ANSI/NFPA 70.
2. Install thermostat. Locate on inside wall
approximately 4 feet above floor. Do not install on
outside wall, near fireplace, or where influenced
by drafts or restricted air flow, hot or cold water
pipes, lighting fixtures, television, or sunlight.
Allow free air movement by avoiding placement of
furniture near thermostat.
3. Wire boiler. Boiler is rated for 120 VAC, 60 hertz,
less than 12 A. A separate electrical circuit must
be run from main electrical service with an over-
current device/disconnect in circuit. A service
switch is recommended and may be required by
some local jurisdictions. Connect to black and
white wires and green ground screw. See Figures
9-1 and 9-2.
4. For installations using zone valves, provide
separate transformer for zone valve wiring.
Consult zone valve manufacturer for assistance.
See Figure 9-3.
9
Electrical
WARNING
Electrical Shock Hazard.
Wiring errors can
cause improper or dangerous operation. Verify
proper operation after installation.
!
DANGER
Electrical Shock Hazard.
• Disconnect electrical supply before installing or
performing maintenance.
• Electrical power may be supplied from more
than one circuit.
• Lock out all electrical boxes with padlock once
power is turned off.
!
WARNING
Electrical Shock Hazard.
• All wiring and grounding must conform to
requirements of authority having jurisdiction or,
in the absence of such requirement, to
National
Electrical Code/NFPA 70
.
• Make electrical connections according to boiler's
wiring diagram and instructions. Failure to
properly wire electrical connections to the boiler
may result in severe personal injury, death, or
substantial property damage.
• Protect each boiler circuit with a properly sized
over-current device.
• Never jump out or bypass any operating control
or component of this boiler.
!
