Start-Up Sequence Of Operations - Lennox ComfortSense 7500 Commercial Installation And Setup Manual

Start-Up Sequence of Operations

RUN EQUIPMENT
IN NORMAL COOL­
ING MODE
RUN EQUIPMENT
IN NORMAL HEAT­
ING MODE
DEACTIVATE ALL
EQUIPMENT
ONE OR BOTH
TRUE
Figure 15. Thermostat Operation with Humiditrol
START
Is
YES
there a cooling
demand
?
NO
Is
YES
there a heating
demand
?
NO
Is
there a
NO
dehumidification
demand
?
YES
Is
EITHER true:
outdoor temp. > 95ºF;
indoor temp. < 65ºF
?
HUMIDITROL
Humiditrol Com­
fort Adjust setting
is:
NEITHER
IS TRUE
®
28
RUN
Is indoor
MAX
temperature > 2ºF
above heating set
point
?
NO
Is
MID indoor temp.
greater than the heat
setpoint plus the cool
setpoint divided by 2?
NO
Is indoor
temp. < 2ºF below
cooling set point
MIN
?
NO
EDA Enabled
YES
YES
YES