www.americanwaterheater.com 35
WIRING DIAGRAMObey local codes and electric utility requirements
when you install or service the water heater.
This appliance must be electrically grounded in
accordance with local codes or, in the absence of
local codes, with the National Code ANSI/NFPA
No 70 (current edition) and/or the CSA C22.1
electrical Code (current edition).
CAUTION: LABEL ALL WIRES PRIOR TO
DISCONNECTION WHEN SERVICING
CONTROLS. WIRING ERRORS CAN
CAUSE IMPROPER AND DANGEROUS
OPERATION. VERIFY PROPER OPERATION
AFTER SERVICING.
Tank ThermistorUIMHTSNormal
Economy
Boost
Flame
Up
Down
On/Off
Celsius
Farenheit
Mode
Lockout
GREY
GREY
BLACK
BLACK
BLUE
BLUE
123
456
!J6
Programing
J1
FlameJ5
Water ValveWater FlowJ8
ThermistorsJ9
RS 485J10
UIM SettingJ11
High Temp SWWater ValveWater Flow SensorBROWN
YELLOW
BLACK
WHITE
Flame Sense RodYELLOW
BLACK
BLACK
BLACK
BROWN
BROWN
RED
RED
BLUE
BLUE
Thermistors J12Gas Valves / ECOJ13
PumpJ15
Auxiliary Out/Igniter J16XFMR Pr(Transformer)J7
Power 120VacJ4
XFMR SecJ3
Thermal FuseJ2
BlowerBlowerBROWN
BROWN
BLACK
BLACK
GREEN
BLACK
WHITE
BLACK
WHITE
Power TransformerORANGE
ORANGE
YELLOW
YELLOW
WHITE
WHITE
BLUE
BLUE
BLACK
GREY
BROWN
InletOutletECOGas Valves120 Vac
Thermal FusePumpIgniterBLACK
YELLOW
GREY
GREY
SW1
MCU
(Micro Controller)YELLOW
BROWN
MMGREEN
RED
RED
BLUE
BLUE
RED
RED
BLUE
BLUE
RED
F1
FuseGREEN
BLUE
1234
1
1
1
1
11
1
1
1
1
1
1
1
2
2
2
22
2
2
2
2
2
2
3
3
33
3
3
3
4
4
4
6
4
510
9
8
7
6
5
6
56
789
5
4
123
456
Main 1st 2nd Prop
FIGURE 34