Lennox PRODIGY2.0 - Page 118

118
Table 63. M3 Control Parameters
Control Parameter
DescriptionUnits
Control Value
No DescriptionUnitsMax.DefaultMin.
Parameter Short
Description
Screen Name
74 HT GAS STG UP TMR Gas Stage Up Timer 0 912 3600 Seconds
 Stage-up timer. The maxim
um time that lower stage
runs before calling next heat
stage. Used in room sensor
applications.
 Disabled if set to 0.
75
HT GAS STG DWN
TMR
Gas Stage Down Timer 0 0 3600 Seconds
 Time delay before a lower
stage turns off following a
higher stage termination.
 Used in room sensor applic
ations.
Block 4 Cooling Parameters
78 COOL DOWN DELAY Cool Down Time Delay 0 1792 8160 Seconds
 Cool down time delay. Time
that Y2 is ignored during
cool down period (when first
occupied + cool demand)
 This delay is only used if an
economizer is used and the
outdoor air is suitable.
79 COOL BLR ON DELAY
Cooling Blower On Time
Delay
0
See section
3.3.9. on page
20 for defaults.
60 Seconds
The time before the blower
turns on after a cooling de
mand.
80 COOL BLR OFF DELAY
Cooling Blower Off Time
Delay
0
See section
3.3.10. on page
20 for defaults.
240 Seconds
The time the blower stays on
after the cooling demand is lost.
81
MAX FREEZE STAT
OCC
Maximum Freeze
Thermostat Occurrence
1 3 3 Occurrences
Service output activation and
compressor lockout. Maximum
freeze thermostat occurrences
are stored before service relay
is energized and compressor is
locked-out.
82
COND FAN RESTRT
DLY
Condenser Fan Restart
Time Delay
0 6 16 Seconds
Low ambient anti-windmilling
condenser fan delay. The time
period that the last operating
fan is turned off before starting
the next fan.
83 LAC SP TEMP 1
Low Ambient Outdoor Air
Limit Temperature 1 Set
Point
10.0 40.0 60.0 ºF
 Low ambient outdoor air limit
temp. 1. Parameters 83 and
84 are used to shed fans.
 Temperature setting must be
less than or equal to pa
rameter 84.
84 LAC SP TEMP 2
Low Ambient Outdoor Air
Limit Temperature 2 Set
Point
10.0 55.0 60.0 ºF
 Low ambient outdoor air limit
temp. 2. Parameters 83 and
84 are used to shed fans.
 Temperature setting must be
greater than or equal to pa
rameter 83.
85
COMP1 LO TMP
LCKOUT
Low Ambient
Temperature Lockout for
Compressor 1
-31.0
Check unit para
meter label as
default may be
altered at fact
ory test.
80.0 ºF
 Low ambient lockout for
compressor 1.
 A value of (-31°F) will dis
able low ambient lockout
function.
 Temperature setting must be
less than or equal to param
eter 86.