NTI INSTALLATION MANUALS

Part 6 - Installing the Condensate Drain

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.

WARNING

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 o 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 quali ed electrician prior to making this connection. Electrical power must only be turned on when the boiler is completely lled with cold water. Failure to follow these instructions could result in component or product failure, serious injury, or death.

1. Removing the Power Cord (To Hard Wire the Boiler)

To remove the power cord and hard wire the boiler: 1. Shut o the power supply at the boiler and at the circuit breaker. 2. Shut o the gas at the manual shuto . 3. Remove the boiler front cover. 4. Disconnect the three clips and open the junction box

Figure 60 - Accessing the Junction Box

CAUTION

5. Unhook the power cord from the green connector CN6.

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.

DHW PUMP

FUSE 5AT

N L

POWER-IN

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.

CN1

CH PUMP

CN4 CN5

CH PUMP

DHW PUMP

N

L

FUSE 5AT CH PUMP

CN6

N L

DHW PUMP

Figure 61 - Power Cord - Green Connector CN6

6. Remove the power cord and the green connector

DHW PUMP

DHW PUMP

FUSE 5AT

N N L

POWER-IN

L

CH PUMP

CN1

N

L

CH PUMP

CN4 CN5

CH PUMP

CH PUMP

DHW PUMP

N

L

CH PUMP

FUSE 5AT

CN6

Figure 59 - Proper Grounding

DHW PUMP

L

DHW PUMP

L

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.

Figure 62 - Remove the power cord from the junction box

7. Unscrew the connector screws and remove the power cord. Remove the grommet.

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