15
10 - ELECTRICAL WIRING
Electrically bond boiler to ground in accordance with
requirements of authority having jurisdiction. Refer
to National Electrical Code, ANSI/NFPA 70.
ELECTRIC POWER SUPPLY
Run separate 120 volt circuit from separate over
current protective device in electrical service entrance
panel. This should be a 15 ampere circuit. Locate
shut-off switch at boiler. It must be turned off during
any maintenance. Connect 120 volt power supply to
control leads L1 (HOT) and L2.
Run a 14 gauge or heavier copper wire from boiler
to grounded connection in service panel or properly
driven and electrically grounded ground rod.
THERMOSTAT INSTALLATION
Thermostat should be installed on an inside wall
1.
about four feet above the
fl
oor.
NEVER install thermostat on outside wall.
2.
Do not install a thermostat where it will be
3.
affected by drafts, hot or cold pipes, sunlight,
lighting
fi
xtures, televisions, a
fi
replace, or a
chimney.
Check thermostat operation by raising and
4.
lowering thermostat setting as required to start
and stop the burners.
Instructions for the
fi
nal adjustment of the
5.
thermostat are packaged with the thermostat
(adjusting heating anticipator, calibration, etc.)
Set heat anticipator at .2 amps. 24 volt thermostat
connects to aquastat terminals T and TV.
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.
!
NOTICE
Label all wires prior to disconnection when
servicing controls. Wiring errors can cause
improper and dangerous operation. Verify
proper operation after servicing.
VENT DAMPER WIRING
Boiler is equipped with factory wired harness with 4
pin molex plug, that plugs into 4 pin molex receptacle
inside vent damper operator.
Vent damper must be connected for boiler to operate.
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.
Содержание Columbia MCC II Series
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Страница 32: ...COLUMBIA BOILER COMPANY Main offices and factory Pittstown PA ...