Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

LENNOX Rollout Switch: Mfr Part # 78L29 - Replacement HVACR Controls, Switches & Thermostats
LENNOXReplacement HVACR Controls, Switches & Thermostats

LENNOX Rollout Switch: Mfr Part # 78L29

LENNOX Replacement HVACR Controls, Switches & Thermostats. Specifications: Product Type: Heater Accessories.

SKU 3G-OTH-77531

Brand
LENNOX
Item
Rollout Switch: Mfr Part # 78L29
Category
Replacement HVACR Controls, Switches & Thermostats
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

LENNOX
Manufacturer Part Number
78L29
Product Type
Heater Accessories

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

LENNOX Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

LENNOX Replacement HVACR Controls, Switches & Thermostats. Specifications: Product Type: Heater Accessories.

Frequently Asked Questions

What is a LENNOX rollout switch used for?

A LENNOX rollout switch is a safety device that shuts off the gas supply if flames or hot gases escape the combustion chamber, preventing overheating or fire. It is commonly used in residential and commercial HVAC systems to protect equipment and personnel.

What are the specifications of the LENNOX 78L29 rollout switch?

The LENNOX 78L29 is a heater accessory with manufacturer part number 78L29. It is designed as a replacement HVACR control for rollout protection. For exact electrical ratings and temperature thresholds, consult the product datasheet or contact 3G Electric for technical support.

Where to buy a LENNOX 78L29 rollout switch worldwide?

3G Electric supplies the LENNOX 78L29 rollout switch to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact our team to place an order or request a quote for this genuine LENNOX part.

How to install a LENNOX rollout switch?

Install the LENNOX rollout switch in the burner compartment near the heat exchanger, following the manufacturer's wiring diagram. Ensure the switch is securely mounted and electrical connections are tight. Always disconnect power and gas before installation, and test operation after replacement.

Used in

Common applications for LENNOX
Commercial HVAC maintenance — Lennox blower wheel 31G67 for replacing worn fans in rooftop units
Gas furnace repair — Lennox induced draft blower 56W68 for exhaust system replacement in residential furnaces
Thermostat upgrade — Lennox 24Z12 for manual control in heat and cool applications in office buildings
Safety system replacement — Lennox limit switch 26G78 for over-temperature protection in industrial heaters
Heat exchanger retrofit — Lennox heat exchanger assembly 96L74 for furnace repair in manufacturing facilities

LENNOX Products

3G Electric supplies LENNOX replacement hvacr controls, switches & thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
LENNOX Limit Switch: Mfr Part # 26G78
LENNOX
LENNOX Limit Switch: Mfr Part # 26G78
LENNOX Contactor: Mfr Part # 95M57
LENNOX
LENNOX Contactor: Mfr Part # 95M57
LENNOX Switching Relay: Mfr Part # 43H89
LENNOX
LENNOX Switching Relay: Mfr Part # 43H89
LENNOX Electric Sequencer: Mfr Part # 72F83
LENNOX
LENNOX Electric Sequencer: Mfr Part # 72F83
LENNOX Limit Switch: Mfr Part # 52M73
LENNOX
LENNOX Limit Switch: Mfr Part # 52M73
LENNOX Direct Spark Igniter: Mfr Part # 73K38
LENNOX
LENNOX Direct Spark Igniter: Mfr Part # 73K38

More from LENNOX

View all LENNOX parts
LENNOX Control Board: Mfr Part # 52M46
LENNOX
LENNOX Control Board: Mfr Part # 52M46
LENNOX Electric Sequencer: Mfr Part # 88K09
LENNOX
LENNOX Electric Sequencer: Mfr Part # 88K09
LENNOX Natural Gas Burner Orifice: Mfr Part # 32K70
LENNOX
LENNOX Natural Gas Burner Orifice: Mfr Part # 32K70
LENNOX Circuit Board: Mfr Part # 56M61
LENNOX
LENNOX Circuit Board: Mfr Part # 56M61
LENNOX Electric Sequencer: Mfr Part # 22J51
LENNOX
LENNOX Electric Sequencer: Mfr Part # 22J51
LENNOX Flame Sensor: Mfr Part # 18G89
LENNOX
LENNOX Flame Sensor: Mfr Part # 18G89
LENNOX Ignition Control Board: Mfr Part # 81W03
LENNOX
LENNOX Ignition Control Board: Mfr Part # 81W03
LENNOX Ignition Control Board: Mfr Part # 17W82
LENNOX
LENNOX Ignition Control Board: Mfr Part # 17W82