Lennox LCH036 Installation Instructions Manual page 145

Litho U.S.A.
E2015
WARNING
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, personal
injury or loss of life. Installation and service must be
performed by a licensed professional HVAC installer
or equivalent, service agency, or the gas supplier
Table of Contents
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Arrangements . . . . . . . . . . . . . . . . . . . . . . . . .
Shipping and Packing List . . . . . . . . . . . . . . . . . . . .
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Duct Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rigging Unit For Lifting . . . . . . . . . . . . . . . . . . . . . . .
Shipping Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reverse Condensate Drains
Condensate Drains . . . . . . . . . . . . . . . . . . . . . . . . . .
Connect Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . .
Pressure Test Gas Piping . . . . . . . . . . . . . . . . . . . . .
Flue and Intake Hoods . . . . . . . . . . . . . . . . . . . . . . .
High Altitude Derate . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Connections . . . . . . . . . . . . . . . . . . . . . . .
VFD Supply Air Blower Start-Up
Blower Operation and Adjustments
Cooling Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas HeatStart-Up . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Heat Operation and Adjustment
Electric Heat Start-Up . . . . . . . . . . . . . . . . . . . . . . . .
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INSTALLATION
INSTRUCTIONS
LGH420, 480, 540, 600
LCH420, 480, 540, 600
(35, 40, 45, & 50 Ton)
GAS AND COOLING PACKAGED UNITS
507232-02
9/2015
Supersedes 507232-01
IMPORTANT
Supply air VFD motor rotation is controlled indepen­
dently from scroll compressor rotation. See Cooling
Start-Up section for correct compressor rotation.
Compressor damage due to improper rotation is the
responsibility of the installer.
Options
Supply Air Variable Frequency Drive
Economizer Start-Up
Power Exhaust . . . . . . . . . . . . . . . . . . . . . . . .
Barometric Relief Dampers
Outdoor Air Dampers
Outdoor Air Hoods . . . . . . . . . . . . . . . . . . . . .
Hot Gas Reheat . . . . . . . . . . . . . . . . . . . . . . . .
Modulating Gas Valves
Hot Gas Bypass . . . . . . . . . . . . . . . . . . . . . . .
Outdoor Air CFM Control
Energy Recovery Wheels
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
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