Lennox LDT Series Information page 4

OPT IONS / A C C ESSORIES
Item Description
ECONOMIZER
High Performance Economizer (Approved for California Title 24 Building Standards AMCA Class 1A Certified)
High Performance Economizer
Downflow or Horizontal Applications - Includes Outdoor Air Hood.
Order Downflow or Horizontal Barometric Relief Dampers separately.
Economizer Controls
Differential Enthalpy (Not for Title 24)
Sensible Control
Single Enthalpy (Not for Title 24)
Global Control
Building Pressure Control
Outdoor Air CFM Control
Barometric Relief Dampers With Exhaust Hood
Downflow Barometric Relief Dampers
Horizontal Barometric Relief Dampers
OUTDOOR AIR
Outdoor Air Dampers With Outdoor Air Hood
Motorized
Manual
¹ POWER EXHAUST (DOWNFLOW APPLICATIONS ONLY)
Standard Static, SCCR Rated
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
Order 2
Sensor is Furnished
Sensor Field Provided
208/230V
460V
575V
Page 4
Unit Model No
Catalog
Number
156 180
23G24 OX OX
21Z09 OX OX
Factory O O
21Z09 OX OX
Factory O O
13J77 X X
13J76
X X
54W78
OX OX
16K99 X X
22J27
OX OX
13U05 X X
22H90 OX OX
22H91 OX OX
22V34 OX OX
240
OX
OX
O
OX
O
X
X
OX
X
OX
X
OX
OX
OX