Lennox LHT Series Service Manual page 5

OPT IONS / A C C ESSORIES
Item Description
¹ POWER EXHAUST (DOWNFLOW APPLICATIONS ONLY)
Standard Static, SCCR Rated
ROOF CURBS
Hybrid Roof Curbs, Downflow
8 in. height
14 in. height
18 in. height
24 in. height
Adjustable Pitch Curb
14 in. height
Standard Roof Curbs, Horizontal - Requires Horizontal Return Air Panel Kit
26 in. height - slab applications
37 in. height - rooftop applications
Insulation Kit For Standard Horizontal Roof Curbs
For 26 in. Curb
For 37 in. Curb
Horizontal Return Air Panel Kit
Required for Horizontal Applications with Roof Curb
CEILING DIFFUSERS
Step-Down - Order one
Flush - Order one
Transitions (Supply and Return) - Order one
Field installed Power Exhaust requires Economizer with Outdoor Air Hood and Downflow Barometric Relief Dampers with Exhaust Hood. Must be ordered separately.
1
NOTE - Catalog numbers shown are for ordering field installed accessories.
OX = Configure To Order (Factory Installed) or Field Installed.
O = Configure To Order (Factory Installed).
X = Field Installed.
208/230V
460V
575V
RTD11-185S
RTD11-275S
FD11-185S
FD11-275S
C1DIFF33C-1
C1DIFF34C-1
Page 5
Unit Model No
Catalog
Number
156 180
22H90
OX OX
22H91 OX OX
22V34 OX OX
11F58 X X
11F59 X X
11F60 X X
11F61 X X
43W26 X X
11T89 X X
11T96
X X
73K32 X X
73K34 X X
87M00
X X
13K63 X X
13K64
13K58
X X
13K59
12X68
X X
12X70
240
OX
OX
OX
X
X
X
X
X
X
X
X
X
X
X
X
X