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WIRING CONFIGURATION
69-2576—01 2
Fig. 3. Wiring to force the HVAC system fan on whenever humidity is needed (on demand).Fig. 4. Wiring to force fan on and prove airflow in the duct.M29940A
G (FURNACE)
G (THERMOSTAT)
ONLY NEEDED IF SYSTEM’S THERMOSTAT DOES NOT ISOLATE Y FROM G.
IF NEEDED, BREAK THE THERMOSTAT G TO SYSTEM G CONNECTION
AND ROUTE THROUGH HUMIDIFIER AS SHOWN.
HE150/HE250 USES A 15 VA TRANSFORMER WIRED INTO 24V IN.
HE100/HE200 USES A 10 VA TRANSFORMER WIRED INTO 24V IN.
1
1
POWER OUT
24V FOR
ELECTRONIC
HUMIDISTAT
2
ONLY NEEDED IF SYSTEM’S THERMOSTAT DOES NOT ISOLATE Y FROM G.
IF NEEDED, BREAK THE THERMOSTAT G TO SYSTEM G CONNECTION
AND ROUTE THROUGH HUMIDIFIER AS SHOWN.
HE300 USES A LINE CORD PLUG.
1
2
HE150 OR HE250
DIP SWITCH SETTING
RESET POWER AFTER
ANY DIP SWITCH CHANGES
HE300
POWER IN
2
R
POWER IN
2
FROM
HUMIDITY
CONTROL G (FURNACE)
G (THERMOSTAT)
1
POWER OUT
24V FOR
ELECTRONIC
HUMIDISTAT
R
FROM
HUMIDITY
CONTROL
ONLY NEEDED IF SYSTEM’S THERMOSTAT DOES NOT ISOLATE Y FROM G.
IF NEEDED, BREAK THE THERMOSTAT G TO SYSTEM G CONNECTION
AND ROUTE THROUGH HUMIDIFIER AS SHOWN.
HE150/HE250 USES A 15 VA TRANSFORMER WIRED INTO 24V IN.
HE100/HE200 USES A 10 VA TRANSFORMER WIRED INTO 24V IN.
1
2
ONLY NEEDED IF SYSTEM’S THERMOSTAT DOES NOT ISOLATE Y FROM G.
IF NEEDED, BREAK THE THERMOSTAT G TO SYSTEM G CONNECTION
AND ROUTE THROUGH HUMIDIFIER AS SHOWN.
HE300 USES A LINE CORD PLUG.
1
2
M29941A
G (FURNACE)
G (THERMOSTAT) 1
POWER OUT
24V FOR
ELECTRONIC
HUMIDISTAT
HE150 OR HE250
DIP SWITCH SETTING
RESET POWER AFTER
ANY DIP SWITCH CHANGES
HE300
POWER IN
2
R
POWER IN
2
FROM
HUMIDITY
CONTROL
AFS AFS
G (FURNACE)
G (THERMOSTAT) 1
POWER OUT
24V FOR
ELECTRONIC
HUMIDISTAT
R
FROM
HUMIDITY
CONTROL