HE105, HE205 WHOLE HOME BYPASS HUMIDIFIER
5 33-00229EF—01
Fig. 7. Installing the drain tubing.
WIRING
Hazardous Voltage.
Can cause personal injury or equipment damage.
Disconnect power supply before installing or
servicing equipment.
IMPORTANT
All wiring must comply with applicable local code,
ordinances and regulations.
Wire the humidifier, humidistat and transformer. See
Fig. 8.
Fig. 8. Wiring the humidifier with the H8908.
Fig. 9. Wiring the humidifier with another
humidistat/thermostat.
TESTING HUMIDIFIER
OPERATION
Checklist
Humidifier is level.
Control wiring was reviewed using circuit diagram.
Humidifier has power.
Water feed line has no kinks.
Drain line slopes continuously down and ends at floor
drain.
Water hose inside humidifier is connected to
PerfectFLO
™
water distribution tray.
After installation use the following steps to check the
humidifier operation:
1. Turn on the power and the water supply.
2. Ensure the saddle valve or T-valve fitting is fully
opened by turning the handle to the left (counter
clockwise) until there is resistance.
3. Turn the H8908 Humidistat to On and turn on the
heat by setting the thermostat to 10 ºF (6 ºC) above
room temperature.
4. Make sure that water is flowing out of the drain hose.
If water does not flow, see Troubleshooting Your
Humidifier section.
5. Check for leaks.
6. Reset the thermostat and H8908 Humidistat to a
comfortable setting for automatic operation. (35%
relative humidity is recommended.)
M36293
1
TRANSFORMER
L1
(HOT)
L2
POWER
SUPPLY
1
2
PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
24 VAC WIRING.
HUMIDIFIER
2
H8908
10
OFF ON
20
30 40
50
60
M36297
1
TRANSFORMER
L1
(HOT)
L2
POWER
SUPPLY
1
2
PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
24 VAC WIRING.
WHEN USING A CONTROL OTHER THAN THE H8908, WIRE TO THE
HUM/HUM OR U/U TERMINALS.
HUMIDIFIER
2
3
3
HUMIDITY
CONTROL
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