The Lennox 88W79 (103455-01) is a dependable thermal sequencer relay designed for use in electric heating applications. It features a single-pole, single-throw (SPST) normally open contact configuration and operates at 24 volts AC. With an ON delay range of 30 to 90 seconds and an OFF delay of 1 to 29 seconds, this relay effectively manages heating element staging in HVAC systems to prevent overloads and ensure smooth performance.Key Specifications:
- Manufacturer: Lennox
- Part Number: 88W79
- Alternate Part Number: 103455-01
- Type: Thermal Sequencer Relay
- Contact Type: SPST (Single Pole, Single Throw), Normally Open
- Control Voltage: 24 VAC
- ON Delay Time: 30–90 seconds
- OFF Delay Time: 1–29 seconds
- Electrical Rating: 25 Amps resistive @ 240 VAC
- Mounting: Surface or bracket mount
- Applications: Electric furnaces, air handlers, and heat pump systems
- Operating Temperature Range: Typically -40°F to 160°F