Lennox LHT180 Installation Instructions Manual page 35

Factory Setting
Para
meter
180H
Note: Any changes to Smoke CFM setting must be adjusted before the other CFM settings.
6000
12
CFM
SETUP > TEST & BALANCE (can also use SETTINGS > RTU OPTIONS > BLOWER > SPEEDS)
3900
17
CFM
5400
14
CFM
6000
13
CFM
6000
18
CFM
SETUP > TEST & BALANCE (can also use SETTINGS > RTU OPTIONS > DAMPER)
9 0%
0%
132
50%
215
SETTINGS > RTU OPTIONS > EDIT PARAMETERS
29 101%
219 75%
216 10%
220 10%
224 100
30 70%
TABLE 14 - 581182-01
Staged Blower Parameters
Field
Description
Setting
240H
Use SETTINGS > RTU OPTIONS > EDIT PARAMETERS
8000
CFM Blower CFM during smoke detection.
CFM
5200
Blower CFM during COOLING LOW operation.
CFM
CFM
7200
CFM Blower CFM during COOLING HIGH operation.
CFM
8000
Blower CFM during Heating operation.
CFM
CFM
8000
Blower CFM during ventilation.
CFM
CFM
0% % Damper min. position during LOW blower operation.
0% % Damper min. position during HIGH blower operation.
50% % Min. damper % for stg 1 power exhaust operation.
Damper minimum position during G blower operation. (Setting parameter 29 to "101" disables param­
101% %
Open
eter 29 and passes control to parameter 9 or 132)
75% % Min. damper % for stg 2 power exhaust operation.
10% % Deadband % for stage 1 power exhaust operation.
10% % Deadband % for stage 2 power exhaust operation.
100 Sec Stage 1 power exhaust off-delay in seconds.
70% %Speed Minimum blower speed % for stage 2 power exhaust operation.
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508336-01 1/2023