Carrier 42 SERIES Application Data

UNIT-MOUNTED CONTROLSOFFHIMEDLOStandard 3-Speed Switch — Switch has OFF, HIGH,MED and LOW positions. Switch is also equipped with aux-iliary connection energized when switch is in HIGH, MEDor LOW position.COMBINATION THERMOSTAT AND TOGGLE SWITCHCombination Thermostat/ON-OFF Toggle Switch(Package 24-R*) — Includes Model TF103 2-pipe thermo-stat and toggle switch. Used as special fan control for cy-cling fan from HIGH to LOW on cooling; from LOW toOFF on heating.OFFHIMEDLOCombination Thermostat/3-Speed Switch (Pack-ages 24-L, M, N, P and Q*) — Thermostat and standard switchare unit mounted in a common electrical junction box.Package 24-L includes Model TF103 2-pipe thermostatand standard 3-speed switch, plus automatic changeover formounting on supply pipe.Package 24-M and 24-N include Model TF103 2-pipe ther-mostat and standard 3-speed switch only.Package 24-P includes Model TH104 4-pipe thermostatand standard 3-speed switch. May be used on 4-pipe sys-tems with electric valves or on 2-pipe systems with total elec-tric heat.Package 24-Q includes Model TH104 4-pipe thermostat,standard 3-speed switch and 2 automatic changeover switchesfor 2-pipe systems with auxiliary electric heat.* Packages listed on current price pages.12