LENNOX 93J3101 Disconnect Switch and Circuit Breaker Kit Instruction Manual

LENNOX 93J3101 Disconnect Switch and Circuit Breaker Kit

Shipping and Packing List

22A20-25 Package 1 of 1 contains:

• 1- Power entry box assembly
• 73M87-88 & 73M91-99 & 74M00-05

Package 1 of 1 contains:

• 1- Power entry box assembly
• 1- Power entry cover
• 1- Gasket
• 1- Bag assembly containing:
  • 1-Disconnect switch flip-cover
  • 1-Rain lip
  • 3-Wires
  • 12-#10-32 X 1/2 Screws
  • 4-#6-16 X 1/2 Screws
  • 4-#8-32 X 1/2 Screws

WARNING To prevent serious injury or death:

1. Lock-out/tag-out before performing maintenance.
2. If system power is required (e.g., smoke detector maintenance), disable power to the blower, remove the fan belt where applicable, and ensure all controllers and thermostats are set to the “OFF” position before performing maintenance.
3. Always keep hands, hair, clothing, jewelry, tools, etc., away from moving parts.

Application

The Disconnect and Circuit Breaker Kits are used on TG/TC/TH/KG/KC/KH/LG/LC/LH/LD 024 through 150 units. See Tables 1, 2, or 3 for usage. Disconnect size depends on unit voltage, blower motor horsepower, and electric heat; refer to product specifications to determine which size disconnect or circuit breaker to use with each unit.

WARNING
Improper installation, adjustment, alteration, service, or maintenance can cause property damage, personal injury, or loss of life. Installation and service 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 personal injury. Take care while handling this equipment and wear gloves and protective clothing

TABLE 1
TH/KH/LGH/LCH 060, LGM/LGT/LCM/LCT 036-072, KG/KC 090 & All 072 Units

Unit (Tall Cabinet)| Disconnect Kit|

Hinges

| Size (Amps)
---|---|---|---
TC/TH/KC/KH| LB-111182N 22A20| No| 80
TC/TH/KC/KH| LB-111182P 22A21| No| 150
TG/KG| LB-111182Q 22A22| No| 80
TC/TH/KC/KH/LC/ LH| LB-111182R 22A23| Yes| 80
TC/TH/KC/KH/LC/ LH| LB-111182S 22A24| Yes| 150
TG/KG/LG/LD| LB-111182T 22A25| Yes| 80

TABLE 2
TG/TC/TH 090-150 Units

TABLE 3
TG/TC/KG/KC 030, 036, 048, 060, TH/KH 024, 030, 036, 048, 060B, & LGH036-048

Unit (Short Cabinet)| Disconnect Kit|

Hinges

| Size (Amps)
---|---|---|---
TC/TH/KC/KH| LB-111182A 20W15| No| 80
TC/TH/KC/KH| LB-111182B 20W16| No| 150
TG/KG| LB-111182C 20W17| No| 80
TC/TH/KC/KH/LCH| LB-111182G 20W21| Yes| 80
TC/TH/KC/KH/LCH| LB-111182H 20W22| Yes| 150
TG/KG/LGH| LB-111182J        20W23| Yes| 80

Installation

024-072, KG/KC 090 Units

1. Disconnect all power to the unit. Open compressor access panel.
2. Remove the mullion on the left side of the compressor section. Retain the screws. See figure 1.
3. On units with hinged panels, remove the door seal from the mullion. Install the door seal in the same location on the disconnect assembly mullion provided in this kit.
4.  Install the disconnect assembly in place of the removed mullion. Secure with retained screws.

TG/TC/TH 090-150 Units

1. Disconnect all power to the unit and remove the compressor access panels.
2. Remove the cover plate on the mullion between the compressor and blower sections.
3. Align the power entry box, rain lip, and mullion engaging holes as shown in Figures 2 and 3. Place the rain lip flange between the power entry box and the mullion. Secure with screws provided in the kit.

Wiring

1. Route main power through the field-provided conduit to the power entry box. Refer to unit dimensions in unit installation instruction for power entry location. Connect power wiring to L1, L2, and L3 on disconnect or circuit breaker.
2.  Make wire connections when no electric heat is installed. Make wire connections as shown in figure 6 when electric heat is installed with single point power supply. Refer to the component arrangement sticker on the inside of the compressor access panel for the location of K1, K2, and K3.

Disconnect Cover

TG/TC/TH 090-150 Units

1. Install flip cover and gasket on the painted side of the power entry cover as shown in figure 7. Make sure flip cover opens upward.
2. Install power entry cover over power make-up box opening. Secure with screws.

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