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Installation & Operation Manual
10 Ladder diagram (continued)
CN5-11X6-1 X6-13 CN5-5
LOUVER RELAY
CN4-5X3-1
CN4-6X3-2
CONNECTION BOARD 1
X6-7CN5-1
RUNTIME
CONTACTS
X6-16CN5-7
X6-2CN5-8
X13-1CN5-9
X6-6CN5-3
X6-15CN5-10
X6-11CN5-12
X6-14CN5-4
X8-5CN6-4
X6-10
X8-15CN6-9
X7-8CN6-5
X7-4CN6-10
X8-7CN6-7
X8-17CN6-3
X8-6CN1-7
3 WAY VALVE
CONNECTION BOARD 1
STAGE 1 / ENABLE
STAGE 2
STAGE 3
STAGE 4
TANK TSTAT
LOUVER PROVING
OPEN
24V COM
CLOSE
+
-
+
-
A
B
0-10V
RATE
OUTPUT
CASCADE
0-10V
BMS
INPUT
CN5-6
X8-19
CN1-5X8-14
CN1-6X8-13
CN1-2
OUTDOOR
SENSOR S5
2ND POOL
SUPPLY
SENSOR S8
SYSTEM / POOL
SUPPLY
SENSOR S6
SYSTEM / POOL
RETURN
SENSOR S7
CONNECTION BOARD 2
X8-3
X4-3
X4-1X8-10
X4-2
X8-20
CN1-1
X6-3
CN1-3X6-1
CN1-2
X6-2
X8-11
BOILER
POOL
A
B
SHIELD
MODBUS
RTU
MODBUS
INTERFACE
BOARD
DISPLAY BOARD
COMPUTER
X4
X11
CN4-1
CN4-4
CONNECTION
BOARD 1
1
2
PROBE
(
(
(
(
(
J3-6
J3-5
TEST
RESET
J2
-1
J2
-2
LOW WATER
CUTOFF
AIR PRESSURE
LOW GAS PRESS
HIGH GAS
PRESS SWITCH
J3-2
J3-4
J3-3
X6-3
X6-12
X6-5
X3-3
X3-4
SILENCE
ALARM
ALARM RELAY
INLET SENSOR S2
X8-2
OUTLET SENSOR S1
X8-8
2ND OUTLET SENSOR S9
X8-1
X8-16CN1-8
+
-
SYSTEM PUMP
SPEED INPUT
CN1
-1
TANK
SENSOR S4
X8-12 CN6-6
CASCADE
SHIELD
CN6
-1
CONNECTION BOARD 1
CONNECTION BOARD 2
ALARM
CONTACTS
BLOCKED FLUE
FLOW SWITCH
X8-18 CN6-8
J2-3
24V
10K
20K
LBL20083 REV B