LENNOX 506200-02 ZG Intake Extension Kit Instruction Manual
- June 4, 2024
- Lennox
Table of Contents
PACKAGED UNITS KITS AND ACCESSORIES
INTAKE EXTENSION KIT
Instruction Manual
INSTALLATION INSTRUCTIONS FOR INTAKE EXTENSION KITS USED ON LG/LD/KG/TG/SG/ZG PACKAGED GAS UNITS
Shipping and Packing List
Package 1 of 1 contains:
1- Intake extension
1- Extension back (89L97, 89L98, & 20X99)
1- Patch plate (89L98 kits only)
Bag assembly containing:
16- #10 Screws (8 in 19W51)
10- #8 Screws (none in 19W51)
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
CAUTION
As with any mechanical equipment, contact with sharp sheet metal edges can
result in a personal in jury. Take care while handling this equipment and
wear gloves and protective clothing.
Check the packaging for shipping damage. Contact the last carrier immediately
if any shipping damage is found.
Application
The intake extension kit is used on gas-packaged units to extend the combustion air intake above the unit.
| Kit | Unit |
|---|---|
| 89L97 LB-98897A | LGM/LGH/LGT/LDT/KG 156-300S |
LGA/LGC 248-360, SG 240
LGA/LGC/TG 090-360
89L98 LB-98897B| LGA/LGC 036 – 072
20X99 LB-98897E| SG 036 & 060
19W51 LB-112082A| LGM/LGH/LGT/LDT/KG 024 – 150 ZG 092-150 & TG 024-072
Installation LGA/LGC 036 – 072 Units
- Remove and discard the hood over combustion air intake opening on -1 units.
- 036-072-1 Units Only- Install patch plate over the right side of combustion air intake as shown in figure 1. Secure in place with all three screws. Discard patch plate when installing the extension on -2 units.
- Install intake extension over combustion air intake louvers. See figure 1 for -1 units and figure 2 for -2 units. Align the top of the intake extension flange just under the unit top flange. See figure 3. Secure in place with screws provided.
Installation LGM/LGH/LGT/LDT/KG 024-150, TG 024-072 Units
- Remove internal rain hood as shown in figure 4.
- Install the extension on the unit. Position bottom of extension 7” (178mm) above the bottom of the heat section access panel. See figure 5.
Installation LGM/LGH/LGT/LDT/KG 156-300S LGA/LGC 248-360, SG 240 LGA/LGC/TG 090-360
- Install the intake back on the extension using #8 screws provided. See figure 6.
- Locate the three larger holes in the right extension flange. See figure 6.
- LGM/LGH/LGT/LDT/KG 156-300S LGA/LGC/TG 090-240 Align the top two larger holes on the intake extension with screws on the right side of combustion air louvers. Secure the extension in place using #10 screws provided.
- TG/LGA/LGC248-360, SG 240 Units (D Box) – Align the bottom two larger holes on the intake extension with screws on the right side of combustion air louvers. Secure the extension in place using the #10 screws provided.
| 
---|---
Installation SG 036, 060 Units
- Install the intake back on the extension using #8 screws provided. See figure 7.
- Center the intake extension over combustion air intake louvers. Secure the extension in place using #10 screws provided.
Installation ZG 092-150 Units
- Remove the unit badge, plug the existing holes and drill new holes to secure the badge. See figure 8.
- Position the extension over the combustion air intake louvers as shown in figure 8.
- Secure the extension to the unit using provided screws.
506200-02
5/2022
Supersedes 12/2020
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