2015
Litho U.S.A.
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
Danger of sharp metallic edges. Can cause injury.
Take care and wear protective clothing when
servicing unit to avoid accidental contact with
sharp edges.
Table Of Contents
Dimensions
Page 2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Arrangements
Page 4
. . . . . . . . . . . . . . . . . . . . . . . . .
Shipping and Packing List
Page 5
. . . . . . . . . . . . . . . . . . . .
General
Page 5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety
Page 5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Support
Page 6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Duct Connection
Page 7
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rigging Unit For Lifting
Page 7
. . . . . . . . . . . . . . . . . . . . . . .
Condensate Drains
Page 7
. . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Piping
Page 9
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pressure Test Gas Piping
Page 10
. . . . . . . . . . . . . . . . . . . . .
High Altitude Derate
Page 11
. . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Connections
Page 11
. . . . . . . . . . . . . . . . . . . . . . .
Blower Operation and Adjustments
Page 14
. . . . . . . . . . . .
INSTALLATION
INSTRUCTIONS
LGH092H, LCH092H
LGH094U, LCH094U
LGH102H, LCH102H
LGH120H, LCH120H
LGH122U, LCH122U
LGH150S, LCH150S
LGH152U, LCH152U
(7.5 Ton)
(7.5 Ton)
(8.5 Ton)
(10 Ton)
(10 Ton)
(12.5 Ton)
(12.5 Ton)
PACKAGED UNITS
507245-02
9/2015
Supersedes 507245-01
Cooling Start-Up
Page 22
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas Heat Start-Up
Page 34
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Heating Operation and Adjustments
Page 35
. . . . . . . . . . . .
Electric Heat Start-Up
Page 35
. . . . . . . . . . . . . . . . . . . . . . . .
Supply Air Inverter Start-Up
Page 36
. . . . . . . . . . . . . . . . . . .
Supply Air Inverter and Direct Drive Operation
Page 38
. . .
Direct Drive Start-Up
Page 38
. . . . . . . . . . . . . . . . . . . . . . . . .
Hot Gas Reheat Operation and Start-Up
Page 40
. . . . . . . .
Service
Page 41
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Controller Parameter Settings
Page 45
. . . . . . . . . . . . .
RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE
LGH SHOWN
3
3
