John Wood Commercial - AJWSC - Manual (Page 16)

ELECTRICAL SUPPLY
If you lack the necessary skills required to properly install
the electrical wiring to this water heater, do not proceed but
have a qualified service technician perform the installation.
When making the electrical connections, always make sure:
• The voltage and frequency correspond to that specified
on the water heater data plate on the front of the water
heater.
• The electrical supply has the proper overload fuse or
breaker protection. The water heater draws less than 7
amps.
• Wire sizes and connections comply with all applicable
codes.
• Wiring is enclosed in approved conduit (if required by
local codes).
• The water heater and electrical supply are properly
grounded.
• The water heater must be connected to a branch circuit
that is dedicated to the water heater only.
• This water heater must be connected directly to a dedi-
cated branch circuit outlet. Do not use an extension cord
to supply electrical power to this water heater.
Wiring Diagram
The wiring diagrams can be found in Figure 13. Always ref-
erence the wiring diagram(s) for the correct electrical con-
nections.
Caution: Label all wires prior to disconnection when servic-
ing controls. Wiring errors can cause improper and danger-
ous operation. Verify proper operation after servicing.
WARNING
Electrical Shock Hazard
• Disconnect power before
servicing.
• Replace all parts and panels
before operating.
• Failure to do so can result in
death or electrical shock.
– 16 –
M
Power cord
Vent damper
Gas valve
Integrated control
Lower sensor
24 VAC
trans-
former
Spark igniter
External communication device
Upper sensor
ECO
120 VAC
N
L1
GND
primary:
120 VAC
secondary:
24 VAC
Vent
damper
Gas valve
Integrated control
Lower sensor
transformer
Spark
igniter
External communi-
cation device
Upper sensor
& ECO
Schematic Diagram
Wiring Diagram
Figure 13 Wiring Diagrams
Honeywell Integrated Water Heater
Control S9631B for Commercial Gas
Water Heaters.
Electrical Ratings:
Line Voltage: 120 Vac, 60 Hz.
Transformer: 24 Vac Nom. (30 Vac Max., 8 Vac Min.)
5.0 VA plus external loads (gas valve,
vent damper, etc.)
Main Valve: Full Load 2A at 24 Vac (0.5 to 0.6 PF).
In Rush 6A at 24 Vac (0.5 to 0.6 PF)
Vent Damper (Optional)
Full Load:
0.5A at 24 Vac.
In Rush: 1A at 24 Vac.
Pilot Valve (Optional)
Full Load:
2A at 24 Vac (0.5 to 0.6 PF).
In Rush: 6A at 24 Vac (0.5 to 0.6 PF).
ORN
GRN
WHT
WHT
WHT
BLK
PRP
BRN
BRN
YEL
BRN
ORN
PNK
BLK
BLK
ORN
BLK
BLK
BLK
BLK
BLK
BLK - Black
WHT - White
GRN - Green
YEL - Yellow
BRN - Brown
ORN - Orange
PNK - Pink
PRP - Purple