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I
M
H
NTELLI
IST
UMIDIFIER
4. Too much moisture in the duct
The IntelliMist Humidifier must be used with either the
Totaline Humidistat (P110-0009) or Intellistat (P374-1600).
Any other controller will cause a continuous (non-pulsed)
spray. Check setup step 1 (Humidistat) or step 9 (Intellistat)
to make sure pulse is turned on - if pulse is set to off,
the humidifier sprays constantly, producing too much water.
Maker sure the controller is set to the correct tonnage to
match the air handler, setup step 3 (Humidistat) or step 10
(Intellistat). Humidistat: make sure HUM wire from
humidistat is connected to the W or W1 terminal on the
furnace, but NOT to the G or fan terminal. Interlocking the
humidistat with the fan will cause the humidifier to run
during fan-only or cooling, which will result in excess
water in the duct. To run the humidifier in fan-only, use the
Intellistat. For more information, see Factors that Affect
Humidity Control.
5. Can't raise humidity enough
Make sure the controller is set to the correct tonnage to
match the air handler, setup step 3 (humidistat) or step 10
(Intellistat). With the Intellistat it is possible to bring on the
fan and humidifier any time the humidity is below the
setpoint. To enable this feature turn on setup step 11, which
will help to increase humidity in the space. Humidity can
also be increased by running the fan continuously (Fan On
button) or by using the programmable fan feature of the
Intellistat to bring the fan on at selected intervals. Check
the position of humidifier spray nozzle to make sure good
evaporation is occurring - on short plenums if the spray is
hitting the end of the plenum, it is better to turn the spray
toward the coil.
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