Lennox ML180UHE Simple Manual

ML180UHE / Page 5
FEATURES
CABINET
Low-prole, narrow width cabinet allows easy
installation.
Heavy-gauge, cold rolled steel construction.
Pre-painted cabinet nish.
Flue outlet on top of cabinet for upow applications,
can be relocated to either side of cabinet for horizontal
applications.
Flanges provided on supply air opening for ease of
plenum connection or alignment with indoor coil.
Insulated cabinet with foil faced insulation on sides and
back of heating compartment.
Complete service access.
Safety interlock switch automatically shuts off power
to unit when blower compartment access panel is
removed.
Gas piping and electrical inlets are provided in both
sides of cabinet.
Return Air Entry:
For bottom/end return-air entry for upow/horizontal
applications, remove furnished bottom seal panel from
cabinet.
For side return-air entry (upow applications only),
corners are marked on either side of cabinet for return
air cut-outs.
See dimension drawings.
NOTE - 60C and 60D size units that require air
volumes over 1800 cfm must have one of the
following:
1. Single side return air with transition, to accommodate
20 x 25 x 1 in. cleanable air lter. Required to
maintain proper air velocity.
2. Single side return air with Optional Return Air Base
3. Bottom return air.
4. Return air from both sides.
5. Bottom and one side return air.
See Blower Performance Tables for additional
information.
Coil Match-up
All furnaces exactly match C33 and CX34 cased upow
indoor coils and CH33 horizontal indoor coils with
same letter designation in model number. No adaptor
required. Engaging holes furnished on cabinet for
alignment.
C33 uncased coils match furnaces without any
overhang but require an optional adaptor base or eld
fabricated transition to match furnace opening. See C33
coil bulletin for additional information.
J
K
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OPTIONS
Horizontal Suspension Kit
Provides suspension of unit and coil in horizontal
applications.
Allows complete service access.
Consists of corner mounted hanging brackets with
vibration isolators, return air end support rail and
hardware for assembly.
Metal hanging straps must be eld provided.
Return Air Base
A eld fabricated transition or Return Air Base is
required when using an IAQ product higher than 14-
3/16 in. installed next to the unit and serviced from the
front. IAQ products higher than 20 in. require a eld
fabricated transition.
Base must be used for 60C and 60D models with air
volumes over 1800 cfm in upow applications when
only one side return is required.
Cabinet is shipped at for easy eld assembly and is
pre-painted steel to match the furnace.
See Dimension Drawing.

Lennox ML180UHE Specifications

General

Brand	Lennox
Model	ML180UHE
Category	Furnace
Language	English