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
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