Lochinvar 151 Field wiring, Installation must comply with, Line voltage connections

8 Field wiring

Installation & Operation Manual

￿WARNING

NOTICE

￿CAUTION

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 the water heater must be replaced, use only type 105°C wire or equivalent.

The water heater 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.

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 DHW (water heater) pump is shipped loose on all
	Armor models. Wire the water heater pump as shown in
	FIG. 8-1.
4.	The Armor water heater is capable of controlling a
	building recirculation pump (field supplied). Wire the

Figure 8-1Line Voltage Field Wiring Connections

DOMESTIC	SERVICE			120V SUPPLY
HOT WATER
		SWITCH		LINE	GROUND	NEUTRAL
PUMP
	L2/N			BK
W		G	L1		G	W
G
BK
RECIRCULATION
PUMP	L4/N	G L3
W
G
BK

building recirculation pump as shown in FIG. 8-1.

5. Dry contacts are sized for 1 hp/120V, 2 hp/240V or

15A/120V, 25A/240V.

Low voltage connections

1.Route all low voltage wires through the knockouts in the rear of the water heater, as shown in FIG. 8-2.

2.Connect low voltage wiring to low voltage connection board as shown in FIG. 8-3 on page 51 of this manual and the water heater wiring diagram.

Figure 8-2Routing Field Wiring (Models 151 - 286)

LOW VOLTAGE

CONNECTION BOARD

LOW VOLTAGE

WIRING KNOCKOUTS

LINE VOLTAGE WIRING KNOCKOUTS

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