Page 35
Field-Installed Accessories
When field-installing the following accessories, refer to
the latest online installation instruction.
TABLE 16
Accessory
Instruction #
Economizer
507227-XX
Outdoor Air Damper
506340-XX
Electric Heat
507250-XX
Smoke Detector
506437-XX
Factory Unit Controller Settings
Use the Unit Controller to adjust parameters; menu paths
are shown in each table. Refer to the Unit Controller
manual provided with each unit.
Tables 17 through 23 show factory settings (in degrees, %
of fan CFM, etc.). Record adjusted settings on the label
located inside the compressor access panel.
When field installing optional kits and accessories, the
Unit Controller must be configured to identify the option
before it will function. Refer to figures 41 and 42 to
determine whether the Unit Controller configuration I.D.
must change. To configure the option, use RTU MENU >
SETUP > INSTALL menu path. Press NEXT until
CONFIGURATION ID 1 or 2 appears depending on the
option installed. Change the appropriate character in the
configuration I.D. For example, when an economizer is
installed using a single enthalpy sensor, change
configuration I.D. 1, the second character, to “S”.
TABLE 17
581038-01
Units With BACnet Settings
RTU Menu > Network Integration > Network Setup Wizard >
BACnet MS/TP > See BACnet MAC Address
BACNET MAC ADDRESS:
Units With Room Sensor, CPC/LSE Gateway Settings
RTU Menu > Network Integration > Network Setup Wizard >
SBUS > Set SBUS Address
LCONN ADDRESS:
TABLE 18
580683
LGM/LCM 092U4E (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
3000
CFM
CFM
Blower CFM during smoke
detection.
SETUP > TEST & BALANCE (can also use SETTINGS > RTU
OPTIONS > BLOWER > SPEEDS)
3000
CFM
CFM
Blower CFM during heating.
2625
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.
1195
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.
