52
420012001500 - 03182024 - Rev. 04
NOTE: For additional electrical protection, the use of a whole house
surge protector is recommended. Damage caused by power surges IS
NOT covered by the warranty.
1. Removing the Power Cord (To Hard Wire the Boiler)
To remove the power cord and hard wire the boiler:
1. Shut off the power supply at the boiler and at the circuit breaker.
2. Shut off the gas at the manual shutoff.
3. Remove the boiler front cover.
4. Unlatch the bottom clips securing the junction box cover and
rotate the cover upwards unhooking the cover at the top.
5. Unscrew the power cord from the connector CN4.
6. Remove the power cord.
7. Cut the cable inside the cabinet and below the plastic connector.
Remove the internal part of the cable from the junction box.
Discard the internal and external parts of the cable.
Note: it may be necessary to loosen the right side panel to
access the plastic cable connector.
Figure 60 - Accessing the Junction Box
A. Wiring
The boiler is equipped with a three prong power cord. The boiler is
limited to a maximum of 15 amps at 120 volts in use.
1. This boiler must be properly grounded. Ensure the electrical
receptacle is properly grounded. Do not remove the grounding
prong from the boiler plug.
2. Do not attach the ground wire to either the gas or water piping.
3. The wiring diagrams in this manual are to be used for reference
purposes only.
4. Refer to these diagrams and the wiring diagrams of any external
controls used with the installation when wiring the boiler. Read,
understand, and follow all wiring instructions supplied with the
controls.
5. Do not disconnect the power supply when the boiler is in normal
operation.
Install wiring and electrically ground boiler in accordance with the
authority having jurisdiction or, in the absence of such an authority,
follow the National Electrical Code, NFPA 70, and/or CSA C22.1
Electrical Code-Part 1 in Canada. Failure to follow all applicable
local, state, and national regulations, mandates, and building supply
codes for guidelines to install the electrical power supply could result
in property damage, serious personal injury, or death.
ELECTRICAL SHOCK HAZARD – To ensure safety, turn off electrical
power supply at service entrance panel before making any electrical
connections to avoid possible electric shock hazard. Failure to do so
could result in property damage, serious personal injury, or death.
Jumping out control circuits or components WILL VOID product
warranty and can result in property damage, personal injury, or death.
It is of extreme importance that this unit be properly grounded. It is very
important that the building system ground is inspected by a qualified
electrician prior to making this connection. Electrical power must only
be turned on when the boiler is completely filled with cold water.
Failure to follow these instructions could result in component or product
failure, serious injury, or death.
Label all wires prior to disconnecting when servicing the boiler. Wiring
errors can cause improper and dangerous operation. Failure to follow
these instructions may result in property damage or personal injury.
Figure 59 - Proper Grounding
CAUTION
WARNING
Figure 62 - Cut the power cable
Part 7 - Connecting Electrical Service
Ensure the Appliance is Properly Grounded
Grounded
Electrical
Outlet
WARNING! DO NOT REMOVE
THIS GROUNDING PRONG
FROM THE APPLIANCE PLUG!
ZONE 2
ZONE 1
LNL
120VAC INPUTDHW PUMP
NL
CH PUMP
N
N
CN6CN5CN8
CN4CN9
Figure 61 - Power Cord - Connector CN4
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