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Universal electronic fan timer replaces ST9120, ST9101, ST9141, and ST9160 models.

ST9120U1011/U

Universal electronic fan timer replaces ST9120, ST9101, ST9141, and ST9160 models.

  • Product Info
  • Literature

Overview

Universal electronic fan timer replaces ST9120, ST9101, ST9141, and ST9160 models installed in gas warm air furnaces. Includes instructions and special wire harnesses for easy replacement.

Features

  • Replaces 40+ existing electronic fan timers
  • Instruction sheet supplies full cross reference and wiring guide
  • Interface harnesses for simple conversion
  • Integrates control of all combustion blower and circulating fan operations in gas warm-air appliance
  • Replaceable fuse
  • DIP switch selectable heat and cool delay on and off times
  • LED lights for easy diagnostics
  • Electronic air cleaner and humidifier terminal connections
  • Continuous low speed indoor air circulation

Product Specifications

Application
Integrates control of combustion blower and circulating fan operations for a gas warm air appliance
Dimensions (in.)
1 1/2 in. high x 4 1/2 in. wide x 5 3/4 in. long
Dimensions (mm)
38 mm high x 114 mm wide x 146 mm long
Frequency
50 Hz; 60 Hz
Approvals, Underwriters Laboratories Inc.
Listed: Report MP466
Approvals, Canadian Standards Association
Certified: File No. LR95329-17
Tradeline Value
Universal Tradeline
Operating Humidity Range (% RH)
5 to 95%, non-condensing
Supply Voltage
Low Voltage: 18 to 30 Vac, Line Voltage: 120V (97-132 Vac), 240V (196 – 264Vac)
PostPurge
5 seconds
Ambient Temperature Range (C)
-40 C to +79 C
Ambient Temperature Range (F)
-40 F to +175 F
Replaces
all ST9101's, all ST9120's, all ST9141's, and all ST9160's
Circulating Fan Load Rating for Heat-Cool Speed
8A full load, 16A locked rotor at 115 Vac, 4A full load, 8A locked rotor at 230 Vac.
Circulating Fan Load Rating for Optional Continuous Speed
8A full load, 16A locked rotor at 115 Vac, 4A full load, 8A locked rotor at 230 Vac.
Combution Blower Load Rating
1.5A full load, 10A locked rotor at 115 Vac, 0.75A full load, 5A locked rotor at 230 Vac. (Reduce full load rating by humidifier [HUM] load.)
Air Cleaner and Humidifier Load Ratings
0.8A maximum combined load at 115 Vac, 0.4A maximum combined load at 230 VAC
Thermostat Load Rating
0.10A plus ignition system load
Heat Fan On Delay
adj. 30, 60 sec (set at 30 sec)
Heat Fan Off Delay
adj. 60, 120, 150, 180 sec (set at 120 sec)
Cool Fan On Delay
adj. 4, 30 sec (set at 4 sec)
Cool Fan Off Delay
adj. 30, 60 sec (set at 30 sec)