Lennox LGH480 User Manual

Page 47
507232-04 7/2017
33
66
100
700
Parameter 118
1000
Parameter 119
Low Temp. Operation High Temp. Operation
CO
2
(ppm)
10°F Parameter 122
20°F
30°F
40°F Parameter
123
105°F Parameter 120
95°F
85°F
75°F Parameter 121
0
Min. Position
Damper Travel: % of
Maximum Open
(Parameter 117
FIGURE 40
DEFAULT DEMAND CONTROL VENTILATION (DCV) OPERATION
TABLE 22
DEMAND CONTROL VENTILATION PARAMETERS
Control Parameter Control Value
Units Description
No Screen Name
Parameter Short
Description
Min. Default Max.
117 DCV MAX DAMPER OPEN
Demand Control
Ventilation Maximum
Damper Open
0 100 100 %
Maximum allowed demand control ventila
tion damper open position.
118 DCV DAMP START OPEN
Demand Control
Ventilation Damper
Start Open
0 700 2000 PPM
 Damper “start open" CO
2
set point for
Demand Control Ventilation.
 Level where fresh air damper begins to
open.
119 DCV DAMP FULL OPEN
Demand Control
Ventilation Maximum
Damper Full Open
Set Point
0 1200 2000 PPM
 Damper “full open" CO
2
set point for De
mand Control Ventilation.
 Level where fresh air damper is opened
to maximum.
120 DCV HI TMP OV FL CL
Demand Control
Ventilation Outdoor
Air Control Hi
Temperature
Override Full Closed
-31.0 105.0 132.0 °F
High outdoor air temp. where fresh air
damper is closed to minimum position.
121 DCV HI TMP OV ST CL
Demand Control
Ventilation Outdoor
Air Control Hi
Temperature
Override Start
Closing
-31.0 75.0 132.0 °F
High outdoor air temperature where fresh
air damper begins to close.
122 DCV LO TMP OV FL CL
Demand Control
Ventilation Outdoor
Air Control Low
Temperature
Override Full Closed
-31.0 10.0 132.0 °F
Low outdoor air temperature where fresh air
damper is closed to minimum position

Lennox LGH480 Specifications

General

Brand	Lennox
Model	LGH480
Category	Air Conditioner
Language	English