Lennox 76F73 DPST HEAT SEQ RELAY DPST HEAT SEQ RELAY

DPST HEAT SEQ RELAY

The Lennox 76F73 DPST HEAT SEQ RELAY is designed to heat and cool residential single-family homes and multiple residential dwellings up to three stories in height with a circuit capacity of 15 amps.

The Lennox 76F73 DPST Heat Seq Relay is a direct replacement for the following models of thermostats:

The Lennox 76F73 DPST Heat Seq Relay is an electronically controlled relay which provides the ability to divide continuous power into two or three time-dependent zones such that a dump type zone can be incorporated with single stage heating. This model comes standard with an SPDT thermostat contact and a DPST contact. Always consult your local codes and ordinances or call the appropriate utility company before installing any heat seq. system.

The Lennox Heat Sequence Relay (T1F-572) updates the time based heating sequence control on a zoning system to an instantaneous heat sequence control. This relay was designed for electronic type zone systems with power factor corrected driver coils using AQW's with the new time delay relays. The F572 is also used on 3 wire heat sequence coil with a BSPT terminal to connect to the driver coil. (86700, 86701, 86703, 86704 and 86779 have this standard)

Lennox Heat Sequencing relays are designed to accurately control and sequence the output of a series of 2-stage gas valves on heating systems. Sequencing refers to the coordination of stage actuation, which is performed by a Lennox sequence relay.

This part may be used on up to 3 fan speed controls in a single application or zone -OR- it may be used as a replacement part for one DPST Heat/Cool/Off fan speed control.

Mfr Name: Lennox Mfr Number: 76F73 The 76F73 is a DPST heat relay that has been engineered with the highest quality materials for rugged construction and reliable performance. It features a large, green pilot lite that displays visual operation. The 76F73 is manufactured with a diaphragm type switch to avoid false operations from transient voltage transients, low power and or control circuit noise.