Page 36
TABLE 19
581053-01
LGM/LCM102U4E (2-Compressor) Staged Direct Drive
Para
mete
r
Factory
Setting
Field
Setting
Description
Note: Any changes to Smoke CFM setting must be adjusted be
fore the other CFM settings. Use SETTINGS > RTU OPTIONS >
EDIT PARAMETERS
12
3400
CFM
CFM
Blower CFM during smoke
detection.
SETUP > TEST & BALANCE (can also use SETTINGS > RTU
OPTIONS > BLOWER > SPEEDS)
3400
CFM
CFM
Blower CFM during heating.
2975
CFM
CFM
Blower CFM during high speed
cooling (2 compressor)
operation.
800
CFM
CFM
Blower CFM during low speed
cooling (1 compressor)
operation.
800
CFM
CFM
Blower CFM during ventilation.
1285
RPM
RPM*
Adjust RPM based on unit static
and blower tables to reach tar
get CFM.
*Once all four blower settings are entered, the target (highest of the
heating and cooling settings) CFM will be displayed. Once the RPM
is saved for the target CFM, all other blower RPM values are set by
the Unit Controller according to the field CFM setting..
SETUP > TEST & BALANCE (can also use SETTINGS > RTU
OPTIONS > DAMPER)
0%
%
Damper min. position during
LOW blower operation.
0%
%
Damper min. position during
HIGH blower operation.
50%
%
Min. Damper % for stage 1
power exhaust operation.
SETTINGS > RTU OPTIONS > EDIT PARAMETERS
29
101%
%
Open
Damper minimum position during
G blower operation. (Setting para
meter 29 to “101” disables para
meter 29 and passes control to
parameter 9 or 132)
216
10%
%
Deadband % for stage 1 power
exhaust operation.
SETTINGS > RTU OPTIONS > EDIT PARAMETER
85
0°F
°F
Compressor 1 low temp lockout.
Settings lower than 0°F could
void warranty.
86
0°F
°F
Compressor 2 low temp lockout.
Settings lower than 0°F could
void warranty.
TABLE 20
580684
LGM/LCM 120U4E (2-Compressor) Staged Direct Drive
Para
meter
Factory
Setting
Field
Setting
Description
Note: Any changes to Smoke CFM setting must be adjusted
before the other CFM settings. Use SETTINGS > RTU OPTIONS
> EDIT PARAMETERS
12
4000
CFM
CFM
Blower CFM during smoke
detection.
SETUP > TEST & BALANCE (can also use SETTINGS > RTU
OPTIONS > BLOWER > SPEEDS)
4000
CFM
CFM
Blower CFM during heating.
3500
CFM
CFM
Blower CFM during high speed
cooling (2 compressor)
operation.
875
CFM
CFM
Blower CFM during low speed
cooling (1 compressor)
operation.
875
CFM
CFM
Blower CFM during ventilation.
1425
RPM
RPM*
Adjust RPM based on unit static
and blower tables to reach tar
get CFM.
*Once all four blower settings are entered, the target (highest of the
heating and cooling settings) CFM will be displayed. Once the RPM
is saved for the target CFM, all other blower RPM values are set by
the Unit Controller according to the field CFM setting..
SETUP > TEST & BALANCE (can also use SETTINGS > RTU
OPTIONS > DAMPER)
0%
%
Damper min. position during
LOW blower operation.
0%
%
Damper min. position during
HIGH blower operation.
50%
%
Min. damper % for stage 1 pow
er exhaust operation.
SETTINGS > RTU OPTIONS > EDIT PARAMETERS
29
101%
%
Open
Damper minimum position during
G blower operation. (Setting para
meter 29 to “101” disables para
meter 29 and passes control to
parameter 9 or 132)
216
10%
%
Deadband % for stage 1 power
exhaust operation.
SETTINGS > RTU OPTIONS > EDIT PARAMETER
85
0°F
°F
Compressor 1 low temp
lockout. Settings lower than 0°F
could void warranty.
86
0°F
°F
Compressor 2 low temp
lockout. Settings lower than 0°F
could void warranty.
