Lennox G61MPV Engineering Data page 5

FEATURES
CONTROLS − CONTINUED
OPTIONS
SignatureStatt Home Comfort Control
Combination temperature
and humidity.
2 Heat/2 Cool
Auto−changeover
Controls humidity during
cooling operation.
Easy−to−use, menu
driven thermostat with a
back−lit, dot−matrix LCD screen.
Remote outdoor sensor (furnished) allows the thermostat
to display outdoor temperature and adjust indoor
dewpoint temperature for precision humidity control in
cooling mode.
See the SignatureStat Engineering Handbook bulletin in
the Controls section for more information.
Thermostat
See Thermostat bulletins in Controls section and Lennox
Price Book for a complete list of thermostats.
CABINET
Low−profile, narrow width cabinet allows easy installation
in up−flow, down−flow or horizontal applications.
Heavy−gauge, cold rolled steel construction.
Pre−painted cabinet finish.
Flanges provided on supply air opening for ease of
plenum connection or alignment with indoor coil.
O
Fully insulated cabinet with foil faced insulation on sides
and back of heating compartment and mat faced
insulation in blower compartment.
Complete service access.
P
Tool−less latches on blower and burner doors assure
positive lock.
Safety interlock switch automatically shuts off power to
unit when blower compartment access door is removed.
Q
Gas piping and electrical inlets are provided in both sides
of cabinet.
Return Air Entry:
For bottom/end return−air entry for up−flow/horizontal
applications, remove furnished bottom seal panel from
cabinet.
For side return−air entry (up−flow applications only), corners
are marked on either side of cabinet for return air cut−outs.
On furnaces with side return air and condensate trap on
the same side of the cabinet, a field fabricated transition or
RAB 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 field
fabricated transition. See dimension drawings.
NOTE − 60C and 60D size units that require air
volumes over 1800 cfm (850 L/s) must have one of the
following:
1.Single side return air with transition, to accommodate
20 x 25 x 1 in. cleanable air filter, required to maintain
proper air velocity.
2. Single side return air with optional RAB Return Air Base.
3.Bottom return air.
4.Return air from both sides.
5.Bottom and one side return air.
See Blower Performance
information.
Tables for additional
Coil Match−up
All furnaces exactly match C33 and CX34 cased up−flow
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 field fabricated
transition to match furnace opening. See C33 coil bulletin
for additional information.
All furnaces exactly match CR33 cased, down−flow indoor
coils with adaptor rails, furnished with coil.
OPTIONS
Condensate Drain Heat Cable Kits
Self-limiting wattage heat cable prevents condensate
drain from freezing in unconditioned areas.
Available in 6, 24 or 50 ft. lengths.
Heat Cable Tape:
66 ft. length, 1/2 in. wide fiberglass.
60 ft. length, 2 in. wide aluminum foil.
Condensate Trap Alternate Location Kit
Allows condensate drain to be installed on the opposite
side of the furnace from the exhaust venting (up−flow
applications only).
Down−Flow Additive Base
Required for heating only units installed on combustible
floors.
Not required in add-on cooling applications.
See Dimension Drawing.
Horizontal Support Frame Kit
Provides support of unit in horizontal applications.
Consists of (2) 1 x 1-1/2 x 32-5/8 in. (25 x 38 x 829 mm) and
(2) 1 x 3 x 53-7/8 in. painted, heavy−gauge cold rolled steel
support channels with assembly and suspending holes.
Bolts and nuts furnished for field assembly. Suspending
rods must be field provided.
RAB Return Air Base
On furnaces with side return air and condensate trap on
the same side of the cabinet, a field fabricated transition or
RAB 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 field
fabricated transition.
Must be used for 60C and 60D models with air volumes
over 1800 cfm in up−flow applications when only one side
return is required.
Cabinet is pre−painted steel to match the furnace.
See Dimension Drawing.
G61MPV / Page 5