Service manual

Installation & Operation Manual
46
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 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.
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. Dry contacts are sized for 1.5 hp/120V, 3 hp/240V or
25 amps.
DHW PUMP
120V
SUPPLY
L
N
G
DRY CONTACTS
1.5 HP MAX
DOMESTIC
HOT WATER
PUMP
120V SUPPLY
LINE
GROUND
NEUTRAL
W
G
BK
WG
BK
SERVICE
SWITCH
L1
G
L2/N
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