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Corp. 0925-L11
LCH SERIES
Service Literature
3 to 6 ton
7 to 21 kW
Revised 10-2018
LCH036 through 074
LCH036H, 048H, and 060H are high efficiency packaged
units equipped with direct drive blowers. LCH036S, 048S
and 060S are standard efficiency packaged units equipped
with two speed belt drive blowers. LCH072H, 074H are high
efficiency packaged units equipped with a single and two
speed belt drive motors.
Optional electric heat is factory or field installed . Electric
heat operates in single stage depending on the kW input
size. 7.5kW through 30 kW heat sections are available for
the LCH unit.
Information contained in this manual is intended for use by
qualified service technicians only. All specifications are sub
ject to change. Procedures outlined in this manual are pre
sented as a recommendation only and do not supersede or
replace local or state codes.
If the unit must be lifted for service, rig unit by attaching four
cables to the holes located in the unit base rail (two holes at
each corner). Refer to the installation instructions for the proper
rigging technique.
WARNING
Improper installation, adjustment, alteration, service
or maintenance can cause property damage, person
al injury or loss of life. Installation and service must
be performed by a licensed professional installer (or
equivalent) or service agency.
IMPORTANT
The Clean Air Act of 1990 bans the intentional vent
ing of refrigerant (CFC's and HCFC's) as of July 1,
1992. Approved methods of recovery, recycling or re
claiming must be followed. Fines and/or incarcera
tion may be levied for non-compliance.
WARNING
Electric shock hazard. Can cause injury
or death. Before attempting to perform
any service or maintenance, turn the
electrical power to unit OFF at discon
nect switch(es). Unit may have multiple
power supplies.
CAUTION
Danger of sharp metallic edges. Can cause injury.
Take care when servicing unit to avoid accidental
contact with sharp edges.
CAUTION
Electrostatic discharge can affect elec
tronic components. Take precautions to
neutralize electrostatic charge by
touching your hand and tools to metal
prior to handling the control.
Table of Contents
Options Page 2.......................
Specifications Page 5..................
Blower Data Page 7...................
Electrical /Electric Heat Data Page 19.....
Electric Heat Capacities Page 26........
Parts Arrangement Page 31.............
I Unit Components Page 32.............
II Placement and Installation Page 43.....
III Start Up Operation Page 43...........
IV Charging Page 43...................
V System Service Checks Page 53.......
VI Maintenance Page 53................
VII Accessories Page 54................
VIII Diagrams Page 63..................
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