Supplying Demand Q103 HQ1056789 Furnace Heat Pump Sequencer 1DPST 24V On 1-20s Off 40-110s

Overview

The Supplying Demand Q103 HQ1056789 furnace heat pump sequencer is a dependable replacement part designed to coordinate when heating elements and blower motors power on or off in multi‑stage systems. It supports electric, gas, and oil heating configurations and relies on a 24 volt control circuit for compatibility with standard thermostats.

Key features

• Two‑switch sequencing to manage multiple stages
• Turns on at 1–20 seconds and turns off at 40–110 seconds
• Five‑second delay between non‑coordinated stages
• 24V control circuit for reliable thermostat compatibility
• Defined on/off order with M1‑M2 first on and last off

Applications and safety

• Suitable for electric furnaces, heat pumps, gas furnaces, and oil furnaces
• Important: disconnect power and gas before servicing
• Compatible with major brands, but verify fitment for your specific system

Compatibility and packaging

• Alternate part numbers include BT1256504, HN67QC005, ZC24A34-3, 1ES24A34-3, 24A34-3, 6000AOIN-87, 60000EO-102, 33244, 33844, NS103
• Supplying Demand packaging ensures recognizable replacement parts

The Q103 HQ1056789 sequencer is designed as a practical upgrade for a range of heating systems. It emphasizes straightforward timing and safe operation, offering a flexible option for installers or DIYers. While it can support various configurations, always confirm fitment against your equipment model and installation instructions. If you are unsure about electrical connections or sequencing, consider consulting a qualified technician.