Lennox LGT156H Installation Instructions Manual page 83

Para
meter
156 180
Note: Any changes to Smoke CFM setting must be adjusted before the other CFM settings.
5200 6000
12
CFM CFM
SETUP > TEST & BALANCE (can also use SETTINGS > RTU OPTIONS > BLOWER > SPEEDS)
1150 1325
17
CFM CFM
4550 5250
14
CFM CFM
5200 6000
13
CFM CFM
1150 1325
18
CFM CFM
SETUP > TEST & BALANCE (can also use SETTINGS > RTU OPTIONS > DAMPER)
9 0% 0%
0% 0%
132
50% 50%
215
SETTINGS > RTU OPTIONS > EDIT PARAMETERS
29 101% 101%
219 75% 75%
216 10% 10%
220 10% 10%
224 100 100
30 70% 70%
Para-meter Factory Setting
Use SETTINGS > RTU OPTIONS > EDIT PARAMETERS
386 1
SETUP > TEST & BALANCE > (can also use SETTINGS > RTU OPTIONS > BLOWER > SPEEDS)
1
SETUP > TEST & BALANCE (can also use
0%
132
50%
215
219 75%
0.05
217
0.10
221
29 101%
TABLE 25 - 581025-01
LGT/LCT 156, 180, 210, 240, 300 Staged
Factory Setting
210 240 300
Use SETTINGS > RTU OPTIONS > EDIT PARAMETERS
7000 8000 10000
CFM CFM CFM
1550 1750 2200
CFM CFM CFM
6125 7000 8750
CFM CFM CFM
7000 8000 10000
CFM CFM CFM
1550 1750 2200
CFM CFM CFM
0% 0% 0%
0% 0% 0%
50% 50% 50%
101% 101% 101%
75% 75% 75%
10% 10% 10%
10% 10% 10%
100 100 100
70% 70% 70%
TABLE 26 - 581026-01
LGT/LCT 156-300 - VAV - Test and Balance Settings
Field Setting
W.C. Supply static pressure setpoint during smoke operation.
W.C. Supply static pressure setpoint
SETTINGS > RTU OPTIONS > DAMPER) (Optional)
% Damper min. position during blower operation.
% Min. damper % for stage 1 power exhaust operation.
% Min. damper % for stage 2 power exhaust operation.
W.C. Pressure setpoint for stage 1 power exhaust operation.
W.C. Pressure setpoint for stage 2 power exhaust operation.
Damper minimum position during G blower operation. (Setting parameter 29 to "101" disables parameter
%
Open
29 and passes control to parameter 9 or 132)
Field
Description
Setting
CFM Blower CFM during smoke detection.
Blower CFM during COOLING LOW operation.
CFM
CFM Blower CFM during COOLING HIGH operation.
Blower CFM during Heating operation.
CFM
Blower CFM during ventilation.
CFM
% Damper min. position during LOW blower operation.
% Damper min. position during HIGH blower operation.
% Min. damper % for stg 1 power exhaust operation.
Damper minimum position during G blower operation. (Setting parameter 29
%
Open
to "101" disables parameter 29 and passes control to parameter 9 or 132)
% Min. damper % for stg 2 power exhaust operation.
% Deadband % for stage 1 power exhaust operation.
% Deadband % for stage 2 power exhaust operation.
Sec Stage 1 power exhaust off-delay in seconds.
%Speed Minimum blower speed % for stage 2 power exhaust operation.
Description
Page 83
508288-01 9/2022