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HE240, HE280 HUMIDIFIER AND INSTALLATION KIT
69-2686EF—01 18
Vacation
• When leaving on vacation, turn off the humidifier water supply and your humidistat.
• When you return, turn on the humidifier water supply and reset your humidistat.
Start of the Humidification Season
Use the following steps to bring the humidifier back to normal (winter) operation:
1. Turn damper blade to "winter" position.
2. Plug the humidifier transformer back into wall outlet and turn water supply to the
humidifier back on by turning the handle on the saddle valve to the left (counter
clockwise) until there is resistance.
3. Turn the humidistat to its highest setting and set the thermostat to 10 °F (6 °C)
above the room temperature.
4. Observe that water is flowing out of the drain hose.
NOTE: The furnace blower must be running to activate the humidifier.
5. Reset the thermostat and humidistat to a comfortable setting for automatic oper-
ation. (35% relative humidity is recommended.)
TROUBLESHOOTING YOUR HUMIDIFIER
Table 4. Troubleshooting Humidifier.
Problem What to look for What to do
Water
leakage
Leaking joints. Shut off water and tighten connections.
Brass tubing inserts Verify that brass tubing inserts are used.
Saddle valve leaking. Verify rubber pad is installed on saddle valve.
No water to
drain.
Electrical Verify control circuit wiring.
Check all connections.
Humidistat Turn humidistat up and down and listen for
contact to click.
Humidifier power Verify that outlet has power.
Solenoid After verifying other wiring components, turn on
furnace fan, turn humidistat up and down, and
listen for solenoid to click.
Plumbing Verify plumbing connections.
Check for kinks.
Saddle valve Verify that needle pierces water line and then
backs out needle to open valve.
Humidifier Remove cover and verify that water flows into
distribution tray.
Drain tubing Verify no obstructions.
Air leakage Check duct joints Seal with foil tape.
69-2686EF_A.book Page 18 Friday, March 9, 2012 11:37 AM
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