Supco TD69 Time Delay on Make Relay 24 Volt

Product Description

The SUPCO TD69 is an adjustable time delay on make relay designed for use in low-voltage HVAC control circuits. It delays the start of a load after the control signal is received, helping prevent short-cycling and reducing compressor stress at system startup. The TD69 operates on 24-volt pilot circuits and features an adjustable delay range of 6 seconds to 8 minutes, making it flexible across a range of residential and light commercial applications. It handles a steady load of 1.0 amp and an inrush current of 10 amps. The compact metal housing and single-hole mounting design make installation straightforward in tight control panels or equipment cabinets.

The TD69 is suited for residential and light commercial HVAC systems where controlled startup sequencing is required. It is commonly installed in split-system air conditioners, heat pumps, and packaged units to delay compressor or fan contactor engagement after a thermostat call. The device is non-positional, so orientation during mounting is not restricted. It can be used on 24-volt pilot circuits with or without a cooling anticipator, adding flexibility for different thermostat configurations.

Key Features

• Adjustable delay on make from 6 seconds to 8 minutes
• Rated for 1.0 amp steady state and 10 amp inrush
• Compatible with 24-volt pilot circuits with or without a cooling anticipator
• Non-positional design allows any mounting orientation
• Single-hole mounting for fast, compact installation
• Metal construction for durability in equipment environments

Compatibility

Designed as an OEM-style replacement time delay relay for residential and light commercial HVAC control circuits operating on 24-volt pilot systems.

Installation Notes

Installation is typically performed by a licensed HVAC technician. Disconnect all power to the unit before removing the existing relay or making wiring connections. Mount using the single-hole mounting point and confirm the delay period is set to the desired interval before restoring power. Follow all applicable local codes and manufacturer wiring diagrams when integrating into the control circuit.