Dehumidify - Lennox ComfortSense 7500 Installation And Setup Manual

Rh
=
set point
RH
Where:
user dew point adjustment
Rh
setpoint

Dehumidify

Dehumidification (removing moisture from air) can
occur only when the thermostat is in cool mode.
When a dehumidification demand is present, a
dehumidification signal (0VAC - open circuit) is
present at the D terminal. This is used to reduce
the speed of the indoor blower during
dehumidification. At the same time, the Y1 and Y2
(if available) terminals become activated with
24VAC. The H terminal is inactive (0VAC - open
circuit) during dehumidification.
NOTE - The D terminal is ALWAYS activated
(24VAC) when the thermostat is in HEAT or OFF
mode; it is only inactive (0VAC - reverse logic)
during dehumidification.
Outdoor Temp (ºF)
2
cannot exceed +/-15% and
minimum is 15% and cannot exceed 45%.
+ 25 +
Dehumidification adjustment will change the
relative humidity (RH) setting between 45 to 60%
RH (default setting is 50% RH). The lower the
number, the more humidity will be removed from
the air.
A selection option under Installer settings >
Humidity settings > Dehumidify > Dehumidify
mode must be enabled before the user will have
control over the humidity. The mode selected
determines how the user can adjust the relative
humidity (RH). The installer settings include:
1. NORMAL
2. MAX
3. AUXILIARY DEHUMIDIFIER
4. HUMIDITROL
5. OFF
38
RH
user dew point
adjustment