Shipping And Packing List; General; Requirements - Lennox LCH036 Installation Instructions Manual

Shipping and Packing List

Package 1 of 1 contains:
1- Assembled unit
Check unit for shipping damage. Receiving party should
contact last carrier immediately if shipping damage is found.

General

These instructions are intended as a general guide and do
not supersede local codes in any way. Authorities having
jurisdiction should be consulted before installation.
Units are available in 20, 25, and 30 ton cooling
capacities. The gas/electric units are available in
260,000, 360,000, or 480,000 Btuh heating inputs.
Optional electric heat is factory- or field-installed in
electric/electric units. All units contain four compressors.
LGH/LCH300 and 360 units are available with supply air
constant air volume (CAV). All units are available with
supply air variable air volume (VAV).
Units are available using R410A, an ozone-friendly HFC
refrigerant. Refer to the Cooling Start-Up section for
precautions when installing unit.
IMPORTANT
Supply air VFD motor rotation is controlled inde­
pendently from scroll compressor rotation. See
Blower Operation and Adjustments section for
correct compressor rotation. Compressor dam­
age due to improper rotation is the responsibility
of the installer.

Requirements

Use of this unit as a construction heater or air conditioner
is not recommended during any phase of construction.
Very low return air temperatures, harmful vapors and
operation of the unit with clogged or misplaced filters will
damage the unit.
If this unit has been used for heating or cooling of
buildings or structures under construction, the following
conditions must be met or the warranty will be void:
S The vent hood must be installed per these installation
instructions.
1 Unit Clearance
Service Clearance
Service Clearance - Units With High Static Exhaust Fans
Clearance to Combustibles - LGH Units
Minimum Operation Clearance
Minimum Operation Clearance - Units With High Static Exhaust Fans
Note - Entire perimeter of unit base requires support when elevated above mounting surface. *Not applicable on units equipped with horizontal barometric relief dampers.
1 Service Clearance - Required for removal of serviceable parts. Clearance to Combustibles - Required clearance to combustible material (gas units). Minimum
Operation Clearance - Required clearance for proper unit operation.
S A room thermostat must control the unit. The use of
fixed jumpers that will provide continuous heating or
cooling is not allowed.
S A pre-filter must be installed at the entry to the return
air duct.
S The return air duct must be provided and sealed to
the unit.
S Return air temperature range between 55°F (13°C)
and 80°F (27°C) must be maintained.
S Air filters must be replaced and pre-filters must be
removed upon construction completion.
S The input rate and temperature rise must be set per
the unit rating plate.
S The heat exchanger, components, duct system, air
filters and evaporator coil must be thoroughly
cleaned following final construction clean-up.
S The unit operating conditions (including airflow,
cooling operation, ignition, input rate, temperature
rise and venting) must be verified according to these
installation instructions.
See figure 1 and table 1 for unit clearances.
D
TABLE 1
UNIT CLEARANCES
A
in.(mm)
60 (1524)
60 (1524)
36 (914)
45 (1143)
45 (1143)
Page 3
UNIT CLEARANCES
Optional
Outdoor
C
Air Hood
A
FIGURE 1
B C
in.(mm) in.(mm) in.(mm)
36 (914) 36 (914) 66 (1676)
36 (914) 80 (2032) 66 (1676)
1 (25) 1 (25) 1 (25)
36 (914) 36 (914) 41 (1041)
36 (914) 80 (2032) 41 (1041)
B
D*
Top Clearance
Unobstructed
Unobstructed
Unobstructed
Unobstructed
Unobstructed