Honeywell HE420A Owner's Manual - Page 7

HE420A STEAM POWER HUMIDIFIER Vacation When you leave on vacation, turn off the humidifier water supply and your humidity control. Turn on the humidifier water supply and reset your humidity control when you return. CHECKING YOUR HUMIDIFIER OPERATION After winter startup or maintenance, use the following steps to check the humidifier operation: 1. Turn on the humidifier water supply. 2. Be sure the humidifier has power, and plug in the humidifier. 3. Turn the Automatic Humidity Control to the Test setting. The underwater heater starts to heat the reservoir water. NOTE: If relative humidity is above 45% in the home, or the outdoor temperature is above 50°F, a jumper may need to be placed across the humidistat's OUT terminals to perform this checkout. 4. Check that the furnace blower turns on to circulate the moist air. The blower may take as long as fifteen minutes before it turns on. 5. Reset the Automatic Humidity Control to the desired dial setting. TROUBLESHOOTING Problem What To Look For Low humidity Humidifier heater is • not operating. • • • • • • • Rapid air changes. • Drafts (cold air is • dry and is an added • load for the • humidifier). High humidity Condensation on • walls. Heavy • condensation on windows. What To Do Confirm that humidifier is plugged in. Set the humidistat higher. Check for low water level. Reset circuit breaker or check for blown fuse. Check that the furnace power is on. Check all external wiring connections. Check the humidity control setting. Call a professional heating contractor. Keep doors and windows closed. Close fireplace damper when not in use. Keep exhaust fan running time to a minimum. Seal around doors and windows. Turn off the humidity control and water until condensation is completely evaporated. Turn humidity control down low enough to eliminate condensation caused by moisture from bathing, mopping, cooking, etc. If moisture persists, more ventilation is needed. 7 69-1112-2