Carrier 33CS Installation And Operating Instructions Manual

Also see for 33CS: Owner's manual Owner's manual Operating guide Installation, start-up, and operating instructions Installation, start-up, and operating instructions

Contents

Carrier 33CS Installation And Operating Instructions Manual Manual pdf 1 page image

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 111 Catalog No. 533-30019 Printed in U.S.A. Form 33CS-55SI Pg 1 11-04 Replaces: 33CS-51SIBook 1 4Tab 11a 13aInstallation and Operating InstructionsPart Number 33CSSN2-FCCONTENTSSAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . 1GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8Select Thermostat Location . . . . . . . . . . . . . . . . . . . . . . 1Install Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Changeover Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Configure Advanced Setup. . . . . . . . . . . . . . . . . . . . . . . 5Factory Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Calibrate Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Check Thermostat Operation. . . . . . . . . . . . . . . . . . . . . 6Final Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8, 9Select Desired Temperature . . . . . . . . . . . . . . . . . . . . . . 8Four-Pipe Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Two-Pipe Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Fan Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Keypad Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Minimum Heat/Cool Temperature Difference . . . . . 8Single Set Point Operation . . . . . . . . . . . . . . . . . . . . . . . 8Dual Set Point Operation . . . . . . . . . . . . . . . . . . . . . . . . . 9Outside Air Temperature Sensor . . . . . . . . . . . . . . . . . 9Locking Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Dry Contact Switch/External Control . . . . . . . . . . . . . 9TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9SAFETY CONSIDERATIONSRead and follow manufacturer instructions carefully.Follow all local electrical codes during installation. All wiringmust conform to local and national electrical codes. Improperwiring or installation may damage thermostat.Recognize safety information. This is the safety alert sym-bol . When the safety alert symbol is present on equipmentor in the instruction manual, be alert to the potential for person-al injury.Understand the signal words DANGER, WARNING, andCAUTION. These words are used with the safety alert symbol.DANGER identifies the most serious hazards which will resultin severe personal injury or death. WARNING signifies ahazard which could result in personal injury or death.CAUTION is used to identify unsafe practices which wouldresult in minor personal injury or property damage.GENERALThe fan coil non-programmable thermostats are wall-mounted or unit-mounted, low-voltage thermostats that main-tain room temperature by controlling the operation of a fan coilunit. Separate heating and cooling set points, auto-changeovercapability, 2-pipe or 4-pipe configurability, and single or dualset point options allow for greater flexibility.The thermostats are normally wall-mounted for 42C and42D fan coil units. For 42S and 42V fan coil units, the thermo-stat is mounted on the fan coil unit or inside the fan coil unit ona junction box. For 42S and 42V fan coil units, the thermostatmay also be remote wall-mounted, if desired.Batteries are not required. During power interruption theinternal NEVERLOST™ memory stores configuration settingsfor an unlimited amount of time.The thermostat can be configured to accept several differentequipment configurations, including 2-pipe or 4-pipe operation.The temperature display range of the thermostat is 35 to99 F (2 to 36 C).INSTALLATIONSelect Thermostat Location — The thermostat shouldbe mounted:• approximately 5 ft from the floor• close to or in a frequently used room, preferably on aninside partitioning wall• on a section of wall without pipes or ductwork• where temperature operating limits are within 32 to122 F (0° to 50 C)• where humidity operating range is within 0 to 95% rela-tive humidity, non-condensingThe thermostat should NOT be mounted:• close to a window, on an outside wall, or next to a doorleading to the outside• where exposed to direct light and heat from a lamp, thesun, a fireplace, or any other temperature-radiatingobject which may cause a false reading• close to or in direct airflow from supply registers orreturn-air grilles• in areas with poor air circulation (such as behind a dooror in an alcove)Install Thermostat1. Turn off all power to fan coil unit.IMPORTANT: Read entire instructions before starting theinstallation.IMPORTANT: The thermostat is factory-configured foruse in 4-pipe applications. The advanced setup must beperformed to configure the thermostat for use with 2-pipeapplications.Before installing thermostat, turn off all power to the unit.There may be more than one power disconnect. Electricalshock can cause injury or death.33CSFan CoilNon-Programmable Thermostat