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LGH480
Lennox LGH480 User Manual
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LGH/LCH420, 480, 540, 600
POWER EXHAUST
DISCHARGE
(OPTIONAL)
EV
APORA
TOR
COILS
CONDENSA
TE
DRAIN
HOT GAS
REHEA
T COILS
(OPTIONAL)
BURNERS
GAS V
AL
VES (2)
CONDENSER
COILS (4)
CONTROL
BOX
COMPRESSORS (4)
CONDENSER
F
ANS (6)
BLOWERS
FIL
TERS
ELEVEN - 16 x 25 x 2”
(406 x 635 x 51mm)
OR
16 X 25 X 4”
(406 X 635 X 102mm)
ECONOMIZER
(OPTIONAL)
ENERGY RECOVER
Y
WHEEL (OPTIONAL)
FIL
TER
DRIERS
LGH420, 480, 540, 600 P
ARTS ARRANGEMENT
LOUVERS
(OPTIONAL)
3
5
Table of Contents
Table of Contents
1
Dimensions
2
Parts Arrangements
4
Shipping and Packing List
5
General
5
Unit Support
5
Duct Connection
6
Rigging Unit for Lifting
7
Shipping Blocks
7
Reverse Condensate Drains
10
Condensate Drains
11
Connect Gas Piping
11
Pressure Test Gas Piping
11
Flue and Intake Hoods
12
High Altitude Derate
12
Electrical Connections
13
Multi-Staged Air Volume Start-Up
16
Variable Air Volume Start-Up
18
Blower Operation and Adjustments
19
Cooling Start-Up
32
Gas Heatstart-Up
36
Gas Heat Operation and Adjustment
37
Electric Heat Start-Up
37
Lch420
38
Options
38
Economizer Start-Up
38
Power Exhaust
50
Barometric Relief Dampers
51
Outdoor Air Dampers
51
Outdoor Air Hoods
51
Hot Gas Reheat
53
Modulating Gas Valves
56
Hot Gas Bypass
57
Outdoor Air CFM Control
58
Energy Recovery Wheels
59
Service
60
4
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Lennox LGH480 Specifications
General
Brand
Lennox
Model
LGH480
Category
Air Conditioner
Language
English
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