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remove, push the Control Pod cover to one side, and gently
work the cover retainer hinge on the other side out of the
jacket slot.)
120-volt wiring
• Connect each conduit supplying line-voltage wiring to or
from the boiler to a conduit opening in the upper portion of
the jacket rear panel.
• All eld-provided line-voltage wiring must be sheathed in
exible metal conduit.
• If required by state or local codes, provide additional limits
as needed.
• When using additional limits, remove the factory-installed
jumper between boiler terminal strip terminals 19 and 20.
• Connect the additional limits in series and wire to boiler
terminal strip terminals 19 and 20.
• e circulator is shipped with the boiler, but not installed or
wired.
• Wire the circulator to the boiler terminal strip as shown on
the boiler wiring diagram. Provide hot, neutral and ground
wires, routed in metal conduit.
• See Replacement Parts page36 for circulator replacemnt part
numbers.
Thermostat wiring
• Install thermostat on inside wall away from inuences of
dras, hot or cold water pipes, lighting xtures, televisions,
sun rays or replaces.
• Follow instructions with thermostat.
• If the thermostat has a heat anticipator, set the heat anticipator
per the limit control manufacturer’s recommendation.
Burner wiring (see Figure 14)
• e burner harnesses incorporate disconnect plugs, providing
a convenient way to disconnect wiring when burner mounting
door is opened.
Failure to disconnect the burner wiring harness
before opening the burner door can cause damage
to the burner and boiler wiring.
When wiring is completed:
• Reinstall the Control Pod cover, close cover and tighten the
retainer screw.
• Replace jacket top and secure with screws.
Part number 550-143-013/0621
19
Series 3
Connect wiring
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