Lennox LGH240H Installation Instructions

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507124-04 3/2016
TABLE 35
580749
LGH/LCH 180U/240U (4-Compressor) MSAV
Para
meter
Factory Setting
Field Setting Description
180U 240U
Note: Any changes to Smoke CFM setting must be adjusted before the other CFM settings. Use SETTINGS > RTU OPTIONS > EDIT
PARAMETERS
12
6000
CFM
8000
CFM
CFM Blower CFM during smoke detection.
SETUP > TEST & BALANCE (can also use SETTINGS > RTU OPTIONS > BLOWER > SPEEDS)
6000
CFM
8000
CFM
CFM
Blower CFM during heating.
5400
CFM
7200
CFM
CFM
Blower CFM during compressor 4 operation.
3900
CFM
5200
CFM
CFM
Blower CFM during compressor 3 operation. This parameter is inactive for thermostats
with 2-stage cooling.
3900
CFM
5200
CFM
CFM
Blower CFM during compressor 2 operation.
3900
CFM
5200
CFM
CFM
Blower CFM during compressor 1 operation. This parameter is inactive for thermostats
with 2-stage or 3-stage cooling.
6000
CFM
8000
CFM
CFM
Blower CFM during ventilation.
SETUP > TEST & BALANCE (can also use SETTINGS > RTU OPTIONS > DAMPER)
0% 0% % Damper min. position during LOW blower operation.
0% 0% % Damper min. position during HIGH blower operation.
50% 50% % Min. damper % for stage 1 power exhaust operation.
SETTINGS > RTU OPTIONS > EDIT PARAMETERS
29 101% 101% %Open
Damper minimum position during G blower operation. (Setting parameter 29 to “101” dis
ables parameter 29 and passes control to parameter 9 or 132)
219 70% 70% % Min. damper % for stage 2 power exhaust operation.
216 10% 10% % Deadband % for stage 1 power exhaust operation.
220 10% 10% % Deadband % for stage 2 power exhaust operation.
224 100 100 Sec Stage 1 power exhaust off-delay in seconds.
30 70% 70% %Speed Minimum blower speed % for stage 2 power exhaust operation.
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580735
Units with BACnet Module (Target) Settings
Use menu SETUP > NETWORK INTEGRATION. Set “BACNET”
and network address.
BACNET MAC ADDRESS:
Para
meter
Factory
Setting
Setting Description
Use SETTINGS > RTU OPTIONS > EDIT PARAMETERS
91 120
Sets the compressor minimum run
time to 2 minutes.
106 99
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.
111 3 Thermostat with three cooling stages.
117 0
DCV max. open damper. 0=controlled
by network.
153 60
Time delay between heating and cool
ing mode.

Lennox LGH240H Specifications

General

Brand	Lennox
Model	LGH240H
Category	Air Conditioner
Language	English