Atwood Mobile Products HYDRO FLAME 8940 User's Manual | Page 5

Atwood Mobile Products Furnace User's Manual - HYDRO FLAME 8940.
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5

8900-III AC WIRING

5

BLACK

BLUE

RED

YELLOW

HIGH TENSION

+ 12V DC

NEG

RED

YELLOW

ELECTRODE

YELLOW

VALVE

RED

+THERMO

MOTOR

CIRCUIT

BREAKER

IGNITION

BOARD

BLW PWR

SAIL

SWITCH

BLUE

BLUE

LIMIT

SWITCH

WHITE

BLUE

YELLOW

RED

GROUND

THERMOSTAT

ON

OFF

ON/OFF

SWITCH

  THERMO

RED

IMPORTANT: If any original wire has to be replaced, it must 
 

be replaced with type 105 C or its equivalent.

                       Terminal Block on 85 Models only.

CUSTOMER SUPPLIED WIRE

8900-III DC WIRING

5

  12V  DC  

SUPPLY

PICTORIAL DIAGRAM

SCHEMATIC DIAGRAM

Off

On

Valve

Electrode

Green

Sail
Switch

Green

Yellow

3 3

2 2

1 1

White

Black

Yellow

Black

Black

Yellow

Red

Blue

Blue

Limit Switch

Blue

Red

Green

Yellow

Transformer

Ignition Control

Black

Brown

Motor

120 VAC Green

120 VAC Black

120 VAC White

White

Thermo Blue

AC Capacitor Motor Run

+Thermo Blue

HIGH TENSION

IMPORTANT 

If any original wire has to be replaced, it must bereplaced with the type 105 C or its equivilant.

t

t

White

Black

24 VAC

TF

CAP

MOT

3

2
3

SS

LS

IG

PS

TH

R

L1

IND

GND

HV

V1

P/S

GV

EL

DO NOT

GRIP

HERE

1

4

2

3

+

+

1 2 3 4 5 6

HV   =  High Voltage 

PS   =   IG Power Input

GND  =  Ground 

SS   =   Sail Switch

GV   =  Gas Valve 

TH   =   Thermostat

EL   =  Electrode 

LS   =   Limit Switch

IG  

=  Egnition Control 

CAP  =   Capiacitor

MOT  =  Blower Motor 

P/S   =   Power Switch On/Off

IND   =  IG Blower Motor Output 

TF   =   Transformer

 

 

 

V1   =   Valve Control

GND

Gr
een

White

Black

120VAC

NOTE: DC Models only
ON/OFF Switch may be sep-
arate or combined in Circuit
Breaker.

A

Valve Assembly

(Vanne)

Valve Conversion

(Vanne de conversion)

6

0.661145s