58 Installation Instructions

1716
NOTE:
18 AWG WIRE IS
ACCEPTABLE FOR 24V
INSTALLATIONS.
WHITE/BLUE
WHITE/YELLOW
Y
E
L
L
O
W
(
C
)
O
R
A
N
G
E
(
N
O
)
B
L
U
E
(
N
C
)
REMOVE WIRE
“G” TO “G”
4851 RELAY
APRILAIRE
OUTDOOR
TEMPERATURE
SENSOR
10VA
TRANSFORMER
PROVIDED WITH
HUMIDIFIER
R CAB
ODT
Cf
W/G
H
THERMOSTAT
TYPICAL 24 VAC
TERMINAL STRIP
IN FURNACE
MODE SWITCH IN “A” POSITION
DIGITAL HUMIDIFIER CONTROL
500 & 600 SERIES
YELLOW WIRES
CRWGY
CRWGY
700 SERIES
BROWN WIRES
400 SERIES
YELLOW WIRE &
WHITE WIRE
NOTE:
PLUMB HUMIDIFIER
TO HOT WATER WHEN
USING THIS WIRING
CONFIGURATION.
90-1398
USING HUMIDIFIER CONTROL TO ACTIVATE HVAC BLOWER
ON CALL FOR HUMIDITY (FIGURE M)
Figure M
24 VAC
TRANSFORMER
H
FURNACE
TERMINAL
STRIP
DIGITAL HUMIDIFIER CONTROL TERMINAL STRIP
W/G CfODTBACR
OUTDOOR TEMPERATURE
SENSOR OR MANUAL
MODE RESISTOR
G Y W R
COMMON
USING FURNACE TERMINALS TO DETECT FURNACE
BLOWER OPERATION (FIGURE L)
This configuration allows the humidifier to run only during heat
call, even if the thermostat is set for continuous fan operation.
Figure L
90-1223