Lennox KG Series

Page 1
INSTALLATION INSTRUCTIONS FOR OUTDOOR AIR DAMPERS
USED WITH KG/KC/KH/LGH/LCH/ZG/ZC/ZH 024-090 UNITS
506882-02
4/2017
Supersedes 11/2016
©2017
OUTDOOR AIR DAMPERS
OUTDOOR AIR DAMPERS
Note - Disregard shipping and packing list and installation
sections when dampers are factory-installed.
Shipping and Packing List
Package 1 of 1 contains:
1- Outdoor air damper (OAD) assembly
1- Hood pivot bracket (15D17, 15D19)
1- Bag assembly containing (15D17, 15D19):
1-P160/J160 jumper harness
1-J39/P39 harness (15D19)
#10 self-drilling screws (15D19)
2-Wiring diagrams (15D17)
3-Wiring diagrams (15D19)
1- Outdoor air hood carton containing:
1-Hood top (15D18, 15D20)
2-Hood sides (left and right)
1-Hood front filter bracket
1-Filter
1-Bottom filter bracket (15D17, 15D19)
1-Bag assembly containing:
#10 sheet metal screws
1-#10 - 32 X 1/2” screw (15D17, 15D19)
Foam tape (15D18, 15D20)
Check parts for shipping damage. Receiving party should
contact last carrier immediately if shipping damage is found.
WARNING
Improper installation, adjustment, alteration, ser
vice or maintenance can cause property damage,
personal injury or loss of life. Installation and ser
vice must be performed by a licensed professional
HVAC installer or equivalent, service agency, or the
gas supplier
Application
Optional outdoor air dampers provide fresh outdoor air.
See table 1 for usage.
C1DAMP21A-1 and Z1DAMP21A-2
Motorized Dampers:
Electro-mechanical units (KC/KG/KH/ZC/ZG/ZH) -
The damper opens to a set position when the blower is
operating. To operate the damper only during the
occupied time period, an optional thermostat or energy
management system must be installed that provides an
occupied signal to the unit's thermostat connection.
Units equipped with an M3 A55 Unit Controller (LC/LG) -
The damper opens to a set position when the blower is
operating and an occupied signal is provided to the Unit
Controller.
C1DAMP11A-2 & Z1DAMP11A-2
Manual Dampers:
Damper is manually operated; damper position is
manually set at installation and remains in that position.
TABLE 1
Unit Type LB # Cat. #
LCH/LGH 036–072
KC/KG/KH 024-090
Motorized 613924-07 15D17
LCH/LGH 036–072
KC/KG/KH 024-090
Manual 613924-08 15D18
ZC/ZG/ZH 036-060 Motorized 613924-09 15D19
ZC/ZG/ZH 036-060 Manual 613924-10 15D20
CAUTION
As with any mechanical equipment, contact with
sharp sheet metal edges can result in personal in
jury. Take care while handling this equipment and
wear gloves and protective clothing.

Lennox KG Series Specifications

General

Stages	Single
Housing Material	Galvanized steel
Voltage	Varies by model
Speed Control	Variable
Sound Level	Varies by model
Application	Industrial and commercial heating, ventilating, and air conditioning (HVAC) systems

Summary

Shipping and Packing List

Application Details

Motorized Dampers Application

Describes motorized damper operation with unit controllers and occupied signals.

Manual Dampers Application

Describes manual damper operation, manually set at installation.

Install Motorized Damper Assembly

LGHLCHKGKCKH Units Installation

Instructions for installing motorized dampers on LGH/LCH/KG/KC/KH units.

ZGZCZH Units Installation

Instructions for installing motorized dampers on ZG/ZC/ZH units.

Wiring Harnesses and Connections

LGHLCH Units Wiring

Wiring harness connections for LGH/LCH units.

KGKCKH Units Wiring

Wiring harness connections for KG/KC/KH units.

ZGZCZH Units Wiring

Wiring harness connections for ZG/ZC/ZH units.

Actuator DIP Switch Setting

Outdoor Air Hood Installation (Motorized)

Factory-Installed Motorized Dampers

Installation steps for factory-installed motorized dampers on LGH/LCH/KG/KC/KH units.

ZGZCZH Units Hood Pivot Bracket

Installation steps for motorized dampers on ZG/ZC/ZH units, focusing on the hood pivot bracket.

Outdoor Air Hood Installation (Manual)

Determine Outdoor Air Percentage

Measurement and Calculation Steps

Steps to measure air temperatures and use Chart 1 to calculate outdoor air percentage.

Damper Minimum Position Adjustments

Units With M2 and M3 Unit Controllers

Adjusting damper minimum position using Unit Controller menus for M2/M3 systems.

Units Not Equipped With A Unit Controller

Adjusting damper stop for units without a controller using fixed increments.

Minimum Damper Position Range

Single Blower Speed Measurement

Measuring static pressure differential for single blower speed operation.

Multiple Blower Speed Measurement

Measuring static pressure differential for multiple blower speed operation.

Damper Percentage Open Reading

Reading damper percentage open using controller or voltage measurement.