Wiring Diagram; Dip Switch Settings - Takagi GS-20W-AU5 Installation Manual And Owners Manual

18. WIRING DIAGRAM

Inlet BK
thermistor BK
Outlet
BK
BK
thermistor
MAX button
MIN button
Increase button
Decrease button
Flow
R
adjust
BK
valve
Flow BK
W
sensor
R
W
O
FM
Y
BL
R

19. DIP SWITCH SETTINGS

• Turn off the power supply to the water heater before changing the DIP switch
settings.
• Only change the switches with dark squares.
• DO NOT adjust other switches.
• DO NOT mistake on-direction for off-direction of the switch.
40°C
OFF
ON
8 7 6
55°C
OFF
ON
8 7 6
DIP switch setting for the gas type is preset at factory. Do not touch
the switches.
Gas
propor-
Hi-
tional
valve limit
R
W
BL
Temperature settings
45°C
OFF
ON
8 7 6
60°C
OFF
60°C
MODEL
ON
DEFAULT
8 7 6
Propane
Universal LPG
Natural
Gas
MV SV3 SV1 SV2
W W
BL
BL BL
G
BL
R
BL
BL
BR
240 VAC
WARNING
50°C
50°C
MODEL
DEFAULT
8 7 6
Gas type
OFF
ON
2 1
OFF
ON
2 1
25
W W H I TE
R R E D
BK BLACK
P PURPLE
PCB
O
P
IG
P
Air-fuel ratio rod
Y
G
O
Flame rod
BL
BL
Remote
G controller
Ground
*NOTE:
50 °C models: GS-20W-AU5
GS-26W-AU5
OFF 60 °C models: GS-20W-AU6
GS-26W-AU6
ON
The set temperature of
55/60 °C is not available for
50 °C models.
BL B L U E
G G R E E N
Y YEL LO W
O ORANGE
BR BROWN
Igniter rod
Ground
Heater
Thermostat
Heater