The spdt switch makes one set of contacts on a tem- perature fall to operate the heating system. The other set of contacts make on a temperature rise to operate the cooling system when the T87F is used to control cool- ing. Heat anticipation is adjustable, 0.1 to 1.2A.
Disconnect power supply before con- necting wiring to prevent electrical shock or equipment damage. The T87F is adaptable to most 2-wire, 24 to 30 volt heating systems, and to most 3-wire, 24 to 30 volt heating systems controlled by a Series 10 Thermostat.
(fewer cycles per hour) may be desirable for some systems. (HOT) RECALIBRATION The T87F is calibrated at the factory and no recali- bration should be necessary. If the thermostat is accu- rately leveled and still appears to be out of calibration, order 104994A Calibration Wrench. Instructions for recalibrat-ing are furnished with the wrench.
Automation and Control Solutions HoneywellInternational Inc. Honeywell Limited—Honeywell Limitée 1985 Douglas Drive North 35 Dynamic Drive Golden Valley, MN 55422 Scarborough, Ontario M1V 4Z9 60-0830—4 G.H. Rev. 8-02 www.honeywell.com/yourhome...