Lennox KG Series User Manual

Page 3
Wiring Harnesses - J/P3, P4, J/P39, J/P160
1- Remove the filter access panel and locate the unit
connection J3/P3.
2- Remove P3 jumper plug and discard.
3- Locate the following harnesses provided in kit:
KG/KC/KH Units - P160/J160
ZG/ZC/ZH Units - P160/J160 and P39/J39
Note - LGH/LCH units do not require kit harnesses.
4- Make harness connections as shown in figure 4, 5, or 6.
5- Discard unused harnesses.
6- Replace the filter access panel.
CONNECT P4 MOTORIZED DAMPER PLUG
TO J3 UNIT JACK
J3 P4
DISCONNECT P3 JUMPER PLUG
FROM J3 UNIT JACK
J3 P3
TO
UNIT
DISCARD P3
TO
UNIT
B7
DAMPER
MOTOR
FIGURE 4
WIRING HARNESS CONNECTIONS
LGH/LCH UNITS
DISCONNECT P3 JUMPER PLUG
FROM J3 UNIT JACK
J3 P3
TO
UNIT
DISCARD P3
CONNECT J/P160 KIT HARNESS BETWEEN J3 AND P4
J3 P160
TO
UNIT
J160 P4 B7
DAMPER
MOTOR
FIGURE 5
J3 P160 J160 P4 B7
WIRING HARNESS CONNECTIONS
KG/KC/KH UNITS
WIRING HARNESS CONNECTIONS
ZG/ZC/ZH UNITS
DISCONNECT P3 JUMPER PLUG
FROM J3 UNIT JACK
J3 P3
TO
UNIT
DISCARD P3
FIGURE 6
CONNECT J/P39 AND J/P160 KIT HARNESSES
BETWEEN J3 AND P4
J3 P39
TO
UNIT
J160 P4 B7B7J39 P160P160
Actuator DIP Switch Setting -
KG/KC/KH/ZG/ZC/ZH Units Only
1- Remove and retain horizontal return panel and
screws.
2- Open the damper motor DIP switch access cover and
adjust the setting. See figure 7.
3- Replace damper motor access cover and horizontal
return panel.
FIGURE 7
INTERLINK DAMPER MOTOR -
(KG/KC/KH/ZG/ZC/ZH)
RETAINER
CLIP
DAMPER
STOP
DIP SWITCH
ACCESS COVER
MOVE STOP THIS
DIRECTION FOR LESS
OUTDOOR AIR
FACTORY-
INSTALLED SETTING
CHANGE TO
THIS SETTING

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

LGH/LCH/KG/KC/KH Units Installation

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

ZG/ZC/ZH Units Installation

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

Wiring Harnesses and Connections

LGH/LCH Units Wiring

Wiring harness connections for LGH/LCH units.

KG/KC/KH Units Wiring

Wiring harness connections for KG/KC/KH units.

ZG/ZC/ZH 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.

ZG/ZC/ZH 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.