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DRUM HUMIDIFIER
DRUM
MOTOR
2
1
BLACK
L1
(HOT)
WHITE
L2
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
2
24V WIRING.
3
TO PROVIDE HUMIDITY IN FAN MODE, CONNECT G AND CG
TERMINALS TO FAN RELAY.
4
IN TWO TRANSFORMER SYSTEMS, REMOVE CW/CG FACTORY
INSTALLED JUMPER.
5
IF USING OUTDOOR TEMPERATURE SENSOR, REMOVE FACTORY
INSTALLED JUMPER.
6
ISOLATED RELAY CONTACTS.
H1008 AUTOMATIC
HUMIDITY CONTROL
OUT
OUT
COOLING
TRANSFORMER
G
FAN
CG
RELAY
2
CW
HEATING
W
RELAY
HEATING
TRANSFORMER
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
2
IN SINGLE TRANSFORMER SYSTEMS, JUMPER CG AND CW.
Fig. 9. Wiring for two-transformer system.
11
9
10
DEHUM
6
DEHUM
HUM
6
BLACK
HUM
HOT
COM
OFF
24 VAC
8
AUTOMATIC HUMIDITY CONTROL
Fig. 8. Wiring for drum style humidifiers.
L1
(HOT)
120V
L2
1
L1
(HOT)
120V
L2
1
M13307
H1008A,D AUTOMATIC HUMIDITY CONTROL
OPTIONAL
OUTDOOR
AIR SENSOR
OUT
5
OUT
G
4
CG
3
CW
W
TEST
FROST
FACTOR
SETPOINT
DIAL
7
HEAT ONLY APPLICATION SHOWN. SIMILAR WIRING REQUIRED IN HEAT
AND COOL SYSTEM WITH ONE OR TWO TRANSFORMERS. WHEN HEAT
AND FAN OPERATE SIMULTANEOUSLY WITH ONE RELAY, JUMP W TO G
AND JUMP CG TO CW.
POWER SHOULD BE APPLIED TO THIS CONTROL AT ALL TIMES. DO NOT
8
USE FAN BOARD HUMIDISTAT CONTACTS OR CURRENT SENSING RELAY.
9
CUT JUMPER FOR DEHUMIDIFIER APPLICATION. (DO NOT CUT FOR
VENTILATION SYSTEM.)
10
DEHUM TERMINALS SWITCH LOW VOLTAGE DEHUMIDIFIERS, HEAT/ENERGY
RECOVERY UNITS OR EXTERNAL CONTACTORS THAT SWITCH HIGH
VOLTAGE DEHUMIDIFIERS.
JUMPER AND DEHUM TERMINALS NOT PRESENT ON H1008A MODEL.
11
H1008 AUTOMATIC
HUMIDITY CONTROL
OUT
OUT
G
CG
CW
W
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
2
OPTIONAL SAIL SWITCH IS MONITORING THE OUTPUT AIR
OF THE BLOWER.
3
CURRENT SENSING RELAY IS MONITORING THE FURNACE
BLOWER MOTOR.
Fig. 10. Wiring for R7997, R8184, RA116 and RA117 oil
5
ROOM THERMOSTAT
G
W
R
7
FAN
RELAY
FURNACE
TRANSFORMER
HEAT
RELAY
L1
(HOT)
L2
1
M13297
SAIL SWITCH
(OPTIONAL)
2
BLOWER
CURRENT
SENSING
RELAY
3
EXTERNAL 24 VAC
TRANSFORMER
24 VAC
systems.
69-1185EF—05
L1
(HOT)
L2
1
M13306A
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