18
VII. Electrical
A. General. Install wiring and ground boiler in accordance
with requirements of authority having jurisdiction, or in
absence of such requirements the National Electrical
Code, ANSI/NFPA 70, and/or the CSA C22.1 Electric
Code.
B. Install thermostat. Locate on inside wall
approximately 4 feet above fl oor. Do not install on
outside wall, near fi replace, or where infl uenced by
drafts or restricted air fl ow, hot or cold water pipes,
lighting fi xtures, television, or sunlight. Allow free air
movement by avoiding placement of furniture near
thermostat.
C. Wire thermostat. Provide Class II circuit between
thermostat and boiler. Set thermostat heat anticipator to
0.6 amps. See Figure 20.
D. Wire boiler. Boiler is rated for 120 VAC, 60 hertz, less
than 12 amperes. A separate electrical circuit must be
run from the main electrical service with an over-
current device/disconnect in the circuit. A service
switch is recommended and may be required by some
local jurisdictions. Connect circuit to black and white
wires and green ground screw. See Figure 20.
Figure 20: Wiring Diagram
may be installed with vertical venting and sidewall
combustion air inlet if installation conditions do not
allow alternate arrangement.
2. Use 4 inch diameter single wall metal pipe, fi ttings,
fi restop(s), roof fl ashing and storm collar available
at most heating distributors.
3. Start at air intake connector. Work toward air intake
terminal.
4. Maintain minimum of ¼ inch per foot slope in
horizontal runs to air intake terminal. Slope down
toward air intake terminal.
5. Seal all joints gas-tight, using silicone caulk or self-
adhesive aluminum tape.
6. Install air intake terminal. See Figures 14 and 19.