Installation & Operation Manual
8 Field wiring
WARNING ELECTRICAL SHOCK HAZARD – For your safety, turn off electrical power supply
before making any electrical connections to avoid possible electric shock hazard. Failure to do so can cause severe personal injury or death.
3. | Wire the boiler pump as shown in FIG. |
4. | When connecting a domestic hot water (DHW) pump, |
| connect the wiring to the line voltage terminal strip as |
| shown in FIG. |
5. | To activate a system pump, wire as shown in FIG. |
NOTICE
CAUTION
Wiring must be N.E.C. Class 1.
If original wiring as supplied with boiler must be replaced, use only type 105°C wire or equivalent.
Boiler must be electrically grounded as required by National Electrical Code ANSI/NFPA 70 – latest edition.
Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation.
the motor is larger than 1/8 hp or 1.8 amps, you must isolate |
with a relay. |
Figure 8-2 Line Voltage Field Wiring Connections
Figure 8-1 Remove Bezel
REMOVE BEZEL
Installation must comply with:
1.National Electrical Code and any other national, state, provincial, or local codes, or regulations.
2.In Canada, CSA C22.1 Canadian Electrical Code Part 1, and any local codes.
Line voltage connections
1.Remove bezel as shown in FIG.
2.Connect 120 vac power wiring to the line voltage terminal strip in the junction box, as shown in FIG.
2.Provide and install a fused disconnect or service switch (15 amp recommended) as required by the code (see FIG.
52 
Low voltage connections
1.Route all low voltage wires through the knockouts in the bottom front right side, just under the control panel, as shown in FIG.
2.Connect low voltage wiring to low voltage connection board as shown in FIG.
Figure 8-3 Routing Field Wiring
LOW VOLTAGE
CONNECTION BOARD
LOW VOLTAGE
WIRING KNOCKOUTS
LINE VOLTAGE
JUNCTION BOX
LINE VOLTAGE
WIRING KNOCKOUTS
