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I
Ladder Diagram
CR-A
HOT
NEUTRAL
1 20VAC
;;\
GFI
�
Transformer
--
- - - - - - - -
-
n
�
/Y /Y (Y
AC1 50V
�
�
DC5v
f -
f -
� Flow Sensor
f -
APS
f -
�
---j
GPS
Hall Sens.or
---j
Fan
f -
WaleJ Leakage
Deleetlon
---j
f -
---j
T=or
f -
Thetmi!ilor 1
1n1e1
---j
Inlet
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-
Themlislor
Z
HTL
swilchi
�
Heat Excna'\)er
HTL swilchi
Ex h a ust
�
----E3
0
;;\
----E3
----E3
�
----E3
-
Primary
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Sencondary
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DC15V
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1
-
-
-
---,
Modulation
GV
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-
r.1:elay Power Supply
-
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MCU 1
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y
1ritertac:e
Remote
Control
!er
Relay 1
Main GV
Relay 2
'u
SGV 1
Relay J
'u
Relay 4.
SGV 2
'u
Relay 6
l!Jjler
PUMP
Relay 7
'u
FIW
si,eed Contro l
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Va lve
w.aiet
Adjuslmenl
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Flow Control
Flame rod
-
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RSS
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1n1ertace,
Comrr,un;caion
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-
O,Mng Cim ..
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c=J-
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y
Ready Link.
Remote,
Controller"
Interlace
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MCU 2
I
Ready Link.
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