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On/Off240 Volt
(only)
240 VoltThermostat
COLD WATER(CW)INLET
HOT WATER(HW)OUTLET
12 Volt TemperaturedisplayDoes not operate in 240Vmode
240 Volt Temperature Thermostat Adjustment
HOT WATER OUT
Do not remove smallscrew(at all,ever.)
Overflow pipe fromPressur Relief ValveMust drain downwards fromthis point
PRESSURERELIFEVALVE(enlarged)
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4
5
Power Switch
Thermal Cutout
Thermostat
L
N
E
He
atin
g E
lem
en
t
Pow
er L
am
p(G
reen)
Heatin
g L
am
p(R
ed)
Battery
connector
Thermal Cutout
temperature senor
240VAC Switch
AC
24
0V
He
atin
gE
lem
en
t
He
atin
g L
am
(Re
d)
12
VD
C H
ea
ting
Ele
me
nt
He
atin
g L
am
p(B
LU
E)
Temperature Dispaly
Thermal Cutout
Thermostat
Ry140A
Ry25A
+12V
GND
6
7
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