2017
WARNING
Improper installation, adjustment, alteration, ser
vice or maintenance can cause property damage,
personal injury or loss of life. Installation and ser
vice must be performed by a licensed professional
HVAC installer or equivalent, service agency, or the
gas supplier
CAUTION
As with any mechanical equipment, contact with
sharp sheet metal edges can result in personal in
jury. Take care while handling this equipment and
wear gloves and protective clothing.
Table of Contents
Dimensions
Page 2
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Parts Arrangements
Page 5
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Shipping and Packing List
Page 6
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General
Page 6
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Unit Support
Page 7
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Duct Connection
Page 8
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Rigging Unit For Lifting
Page 8
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Condensate Drains
Page 8
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Gas Piping
Page 9
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Pressure Test Gas Piping
Page 10
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High Altitude Derate
Page 10
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Electrical Connections
Page 10
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INSTALLATION
INSTRUCTIONS
(13 Ton)
(15 Ton)
(15 Ton)
(17.5 Ton)
(20 Ton)
(20 Ton)
(25 Ton)
LGH/LCH156H
LGH/LCH180H
LGH/LCH180U
LGH/LCH210H
LGH/LCH240H
LGH/LCH240U
LGH/LCH300S
ROOFTOP PACKAGED UNITS
507124-05
12/2017
Supersedes 11/2017
Blower Operation and Adjustments
Page 13
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Cooling Start-Up
Page 20
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Gas Heat Start-Up
Page 40
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Heating Operation and Adjustments
Page 42
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Electric Heat Start-Up
Page 42
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Supply Air Inverter Start-Up
Page 42
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Supply Air Inverter Operation
Page 46
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Hot Gas Reheat Operation and Start-Up
Page 48
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Service
Page 52
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Unit Controller Parameter Settings
Page 54
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RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE
LCH180U SHOWN
