42
indoor variable speed motor to the
dehumidification speed and cycle Y2
ON
to the
outdoor unit. Cooling has priority over Humiditrol
®
calls. Humiditrol
®
mode is allowed to over cool up
to 2
º
F above the heating set point.
Heat only
—
Thermostat will cycle heating ON and
OFF to maintain heating set point.
Dehumidification functions are disabled.
Heat/Cool
—
Dehumidification will only occur if a
dehumidification demand is present, a cooling
demand is not present, outdoor temperature is
less than 95ºF, indoor temperature is above 65ºF
and the indoor temperature is not cooler than 2ºF
above heating set point.
Note: If the last thermostat demand was a heating
demand, the thermostat does not require a cooling
demand before Humiditrol
®
operation.
Humidity Sensor Fault
If the humidification sensor fault occurs, then the
H
terminal becomes inactive, and the
D
terminal
goes to 24VAC.
Dew point adjust is only available when an outdoor
sensor is attached.
Other Humiditrol
®
EDA Notes
If the outdoor sensor is disconnected while
HUMIDITROL is enabled, the thermostat will not
allow operation in dehumidification mode.
Set point range: 45 to 60% Relative Humidity
(RH). Factory default - 50%.
Relative Humidity controls to within 2% on either
side of RH set point.
When the “D” terminal is activated with 24VAC,
dehumidification is inactive.
NORMAL, MAX and HUMIDITROL
modes are
disabled by default from the factory.
As a precaution, regardless of how low the heating
set point has been set, Humiditrol
®
dehumidification is inhibited below 65
º
F indoor
temperature.
Unit Part (Catalog) & Serial Numbers
A label on the back of the thermostat is visible
through an opening in the back of base plate. This
identifies the Lennox Catalog Number, Part
Содержание ComfortSense 7500
Страница 12: ...12 Figure 3 Enhanced Dehumidification Accessory Typical Wiring Diagram ...
Страница 13: ...13 Tc To To Tc Figure 4 CBX32MV XXX 230 06 or Higher and CBX40UHV Wiring Diagrams Condensing Unit Applications ...
Страница 14: ...14 To Tc To Tc Figure 5 CBX32MV XXX 230 06 or Higher and CBX40UHV Wiring Diagrams Heat Pump Unit Applications ...
Страница 18: ...18 TSTAT EL280P TSTAT EL296E EL296V SL280V To Tc To Tc Figure 9 Thermostat Wiring Diagrams continued ...