Lennox LCH036 Installation Instructions Manual page 95

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 30 through 40 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 37 and 38 to
determine whether the Unit Controller configuration I.D.
must change. To configure the option, use MAIN MENU >
SETUP > INSTALL menu path. Press SAVE 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 30
Units With BACnet Module Settings
Use menu SETUP > NETWORK INTEGRATION. Set "BACNET" and
network address.
BACNET MAC ADDRESS:
TABLE 31
Units With Room Sensor, CPC/LSE Gateway Settings
Use menu SETUP > NETWORK INTEGRATION. Set "L CONNEC­
TION" and network address.
LCONN ADDRESS:
TABLE 32
Units with BACnet Module (Target) Settings
Use menu SETUP > NETWORK INTEGRATION. Set "BACNET"
and network address.
BACNET MAC ADDRESS:
Para­ Factory
meter Setting
Setting
Use SETTINGS > RTU OPTIONS > EDIT PARAMETERS
91 120
106 99
111 3
117 0
153 60
580730
580732
580735
Description
Sets the compressor minimum run
time to 2 minutes.
Set reheat SP from connected sensor
to 99% to basically disable. Reheat
will be controlled over by BAS. Only
applies to units with the reheat option.
Thermostat with three cooling stages.
DCV max. open damper. 0=controlled
by network.
Time delay between heating and cool­
ing mode.
Units With BACnet Module (Kohl's) Settings
Use menu SETUP > NETWORK INTEGRATION. Set "BACNET"
and network address.
BACNET MAC ADDRESS:
Para­ Factory
meter Setting
Use SETTINGS > RTU OPTIONS > EDIT PARAMETERS
137 65
LGH/LCH 152U4E (2-Compressor) Staged Direct Drive
Para­
Factory
meter
Setting
Note: Any changes to Smoke CFM setting must be adjusted
before the other CFM settings. Use SETTINGS > RTU OPTIONS
> EDIT PARAMETERS
5000
12
CFM
SETUP > TEST & BALANCE (can also use SETTINGS > RTU
OPTIONS > BLOWER > SPEEDS)
5000
CFM
5000
CFM
3250
CFM
5000
CFM
1655
RPM
*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%
0%
50%
SETTINGS > RTU OPTIONS > EDIT PARAMETERS
29 101%
216 5%
SETTINGS > RTU OPTIONS > EDIT PARAMETER
85 40°F
86 40°F
Page 45
TABLE 33
580733
Setting Description
Sets the backup occupied heating set­
point to 65F.
TABLE 34
580685
Field
Setting
Description
Blower CFM during smoke
CFM
detection.
Blower CFM during heating.
CFM
Blower CFM during high speed
cooling (2 compressor)
CFM
operation.
Blower CFM during low speed
cooling (1 compressor)
CFM
operation.
Blower CFM during ventilation.
CFM
Adjust RPM based on unit static
and blower tables to reach tar­
RPM*
get CFM.
Damper min. position during
%
LOW blower operation.
Damper min. position during
%
HIGH blower operation.
Min. damper % for stage 1 pow­
%
er exhaust operation.
Damper minimum position during
G blower operation. (Setting para­
% meter 29 to "101" disables para­
Open
meter 29 and passes control to
parameter 9 or 132)
Deadband % for stage 1 power
%
exhaust operation.
Compressor 1 low temp lockout.
Settings lower than 40°F could
°F
void warranty.
Compressor 2 low temp lockout.
°F Settings lower than 40°F could
void warranty.