Lennox CS7500 User Manual

25
NOTICE!
Risk of equipment damage.
Can cause compressor failure.
In dual fuel system application, do not turn on heat
pump and furnace at the same time in system test
mode.
All HVAC components can be tested to conrm the
signals between thermostat and unit are being sent
and were received.
NOTE: After 5 minutes without a test being
initiated, the test modes is disabled and
system goes back to the normal mode (i.e.
HOME screen).
When in SYSTEM TEST MODE,
the compressor minimum o timer is
bypassed.
Dehumidify Mode
Dehumidication (removing moisture from air)
can only occur when the thermostat is in cooling
mode.
Dehumidify
Mode Setting
Terminal D State
Normal, Max or
Humiditrol
De-energized for
dehumidication and energized
for all other modes.
De-energizing D terminal is used
to reduce the speed of the indoor
blower during dehumidication.
At the same time the Y1, Y2,
and Y3 (if available) terminals
become energized (24VAC).
RTU / Aux
Dehumidier
Energized for dehumidication.
Dehumidication 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 > Humid-
ity 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. RTU/AUX DEHUMIDIFIER
4. HUMIDITROL
5. OFF

Lennox CS7500 Specifications

General

Brand	Lennox
Model	CS7500
Category	Thermostat
Language	English