Lochinvar 80 - 285 User Manual download pdf (Page 46)

Installation & Operation Manual

8 Field wiring

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.

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.

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. Connect 120 vac power wiring to the line voltage terminal

strip in the junction box, as shown in FIG. 8-1.

2. Provide and install a fused disconnect or service switch

(15 amp recommended) as required by the code (see

FIG. 8-1).

3. The boiler pump is shipped loose. Wire the boiler pump

as shown in FIG. 8-1.

4. When connecting a domestic hot water (DHW) pump,

connect the wiring to the line voltage terminal strip as

shown in FIG. 8-1.

5. To activate a system pump, wire as shown in FIG. 8-1. If

the motor is larger than 1/8 hp or 1.8 amps, you must

install a relay.

Figure 8-1 Line Voltage Field Wiring Connections

Label all wires prior to disconnection

when servicing controls. Wiring errors

can cause improper and dangerous

operation.

 WARNING

NOTICE

 CAUTION

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Lochinvar 80 - 285 User Manual Page 46