Lennox LCH036 Installation Instructions Manual page 97

TABLE 37
580683
LGH/LCH 094U4E (2-Compressor) Staged Direct Drive
Para­
met­
Field
Factory
er
Setting
Setting
Note: Any changes to Smoke CFM setting must be adjusted be­
fore the other CFM settings. Use SETTINGS > RTU OPTIONS >
EDIT PARAMETERS
3000
12 CFM
CFM
SETUP > TEST & BALANCE (can also use SETTINGS > RTU
OPTIONS > BLOWER > SPEEDS)
3000
CFM
CFM
3000
CFM
CFM
1950
CFM
CFM
3000
CFM
CFM
1195
RPM*
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%
0%
SETTINGS > RTU OPTIONS > EDIT PARAMETERS
29 101% %
Open
216 5%
SETTINGS > RTU OPTIONS > EDIT PARAMETER
85 40°F
86 40°F
Description
Blower CFM during smoke
detection.
Blower CFM during heating.
Blower CFM during high speed
cooling (2 compressor)
operation.
Blower CFM during low speed
cooling (1 compressor)
operation.
Blower CFM during ventilation.
Adjust RPM based on unit static
and blower tables to reach tar­
get CFM.
Damper min. position during
%
LOW blower operation.
Damper min. position during
%
HIGH blower operation.
Power exhaust position during
%
HIGH blower operation.
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)
Deadband % for stage 1 power
%
exhaust operation.
Compressor 1 low temp lockout.
°F Settings lower than 40°F could
void warranty.
Compressor 2 low temp lockout.
Settings lower than 40°F could
°F
void warranty.
Units With Automated Logic DDC (Target) Settings
Para­ Factory Field
meter Setting Setting
Use SETTINGS > RTU OPTIONS > EDIT PARAMETERS
91 120
111 3
118 400
119 2000
139 74
153 60
Units With Hot Gas Reheat
Use SETTINGS > RTU OPTIONS > EDIT PARAMETERS
Para­ Factory
meter Setting
105 6
Units With LonTalk Settings
Use menu SETUP > NETWORK INTEGRATION. Set "LONTALK".
Page 47
TABLE 38
580731
Description
Compressor minimum run time.
Thermostat with three cooling stages.
Damper "start open" CO
Damper "full open" CO
2
Backup occupied cooling setpoint.
Time delay between heating and cooling
mode.
TABLE 39
580734
Field
Setting
Description
Hot Gas Reheat Option 6: Reheat is
only possible if blower is energized dur­
ing occupied periods. Controlled by RH
sensor (A91) connected to input
A55_P298_5 and set point set at para­
meter 106 (default 60%).
TABLE 40
580743
setpoint for DCV.
2
setpoint for DCV.