7
6 5
4
3
2 1
6 5
4
3
2 1
6 5 4 3 2
1
7
6 5
4
3
2 1
6 5 4 3
2 1
1
2
3
4
5
6
7
1
2
3
4
5
6
1
2
3
4
5
6
7
1
2
3
4
5
6
J5
J1
J6
J7
J9
J4
J8
J2
J3
Low Level Probe
Refill Level Probe
High Level Probe
Tank Ground
Humidifier
Tank
1
2
3
Gray
Violet
Blue
TANK FILL VALVE * Enabled when menu 705 is set to "TRI-PROBE
TANK DRAIN VALVE *
Factory Option Enabled in menu 706
Yellow
Black
White
Black
24 VDC (+) UNREGULATED
24 VDC (-) COMMON
24 VDC (+) UNREGULATED
24 VDC (+) UNREGULATED
DC POWER SUPPLY
FOR HUMIDITY
AND TEMPERATURE
SENSORS
A-
B+
REF. GROUND
CURRENT (+)
COMMON(-)
OUTER BOARD
INNER BOARD
VOLTAGE (+)
COMMON (-)
OVER-TEMPERATURE SWITCH(S)
(switch opens on temp. rise, 250°F)
AIRFLOW SWITCH
(switch closes with air flow)
ON/OFF HIGH-LIMIT HUMIDISTAT
(switch opens on RH rise)
SAFETY CIRCUIT
Yellow (+)
Red (-)
VOLTAGE (+)
CURRENT (+)
COMMON (-)
CURRENT (+)
COMMON (-)
Green
LOW WATER FLOAT SWITCH * (switch opens with low water)
Input is active only when menu 705 is set to "FLOAT"
BACK SIDE OF THE INTAC
CONTROLLER MOUNTED
ON THE PANEL DOOR
®
1 AMP @ 24 VAC (contact closes on alarm)
HIGH/LOW HUMIDITY ALARM CONTACTS
DISABLE SWITCH
(a closed contact disables the humidifier)
DEDICATED INPUT/ PANEL LOCK-OUT
(a closed contact locks the panel)
White
Green
Violet Gold
No Color
Yellow
Blue
Red
Silver
24 VAC COMMON
24 VAC HOT
PANEL GROUND
PILOT RELAY - 24VAC
(plug in cube relay)
+ 5 VDC TRIGGER
24 VAC COMMON
HEATER #4 / BURNER # 3
HEATER #3 / BURNER # 2
HEATER #2 / BURNER # 1
TANK WATER TEMP THERMOCOUPLE *
Factory Option Enabled in menu 703 and Configured in Menu 503
HEATER #1 / Blower
TRI-PROBE - Standard water units only *
See Specifications page for wiring limitations
Input is active when menu 705 is set to
"TRI-PROBE"
INNER
BOARD
OUTER
BOARD
7
6 5
4
3
2 1
6 5
4
3
2 1
6 5 4 3 2
1
7
6 5
4
3
2 1
6 5 4 3
2 1
1
2
3
4
5
6
7
1
2
3
4
5
6
1
2
3
4
5
6
7
1
2
3
4
5
6
Tank Ground
Humidifier
Tank
1
2
3
24 VDC (+) UNREGULATED
24 VDC (-) COMMON
24 VDC (+) UNREGULATED
24 VDC (+) UNREGULATED
MODBUS
RS485 COM
CONNECTIONS
VOLTAGE (+)
CURRENT (+)
OVER-TEMPERATURE SWITCH(S)
(switch opens on temp. rise, 250°F)
AIRFLOW SWITCH
(switch closes with air flow)
ON/OFF HIGH-LIMIT HUMIDISTAT
(switch opens on RH rise)
SAFETY CIRCUIT
®
1 AMP @ 24 VAC (contact closes on alarm)
HIGH/LOW HUMIDITY ALARM CONTACTS
White
Green
Violet Gold
No Color
Yellow
Blue
Red
Silver
24 VAC HOT
PANEL GROUND
ON/OFF HUMIDISTAT * (switch opens on RH rise)
Input is active when menu 701 is set to "ON/OFF"
PILOT RELAY - 24VAC
(plug in cube relay)
+ 5 VDC TRIGGER
24 VAC COMMON
HEATER #4 / BURNER # 3
HEATER #3 / BURNER # 2
HEATER #2 / BURNER # 1
Use shielded cable (Beldon #9842 minimum)
ISOLATED CONTROL INPUT OR HUMIDITY/SENSOR INPUT *
Input is active except when Control Type is ON/OFF and is configured in menus 502 and 504 thru 506
MODULATING HIGH LIMIT RELATIVE HUMIDITY INPUT *
Factory Option Enabled in menu 707 and Configured in Menus 508 thru 510
Input is functional only when menu 502 is set to "Transmitter"
CURRENT OUTDOOR AIR TEMP SENSOR INPUT *
Factory Option Enabled in menu 704 and Configured in Menus 511 thru 516
Input is functional only when menu 502 is set to "Transmitter"
ANALOG PROCESS OUTPUT *
Output is active when menu 701 is set to Gas or Steam and is Configured in menus 517 thru 519
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