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 3 page image

3Table 1 — Thermostat Wiring Terminations(4-Pipe Systems)Table 2 — Thermostat Wiring Terminations(2-Pipe Systems)Changeover Sensor — If the thermostat is being usedwith a two-pipe system, a changeover sensor (33CSWCO-FC)may be used to provide automatic heat/cool mode changeover.Set Clock — The Set Clock function allows the user tochange the time and day displayed on the thermostat. Press andhold the Mode and Fan buttons at the same time for 2 seconds untilthe display changes. The display will show the Setup annunciator.The current time will blink on and off. Press the UP ARROW andDOWN ARROW buttons until the correct time is shown. Holddown the buttons to quickly move through the time display. TheAM and PM annunciators will automatically change. To scrollthrough by hours instead of minutes, hold down the Fan buttonwhile pressing UP ARROW or DOWN ARROW. To ensure theschedules are properly followed, make sure that AM or PM is cor-rect for the time chosen. When the correct time is shown, press theMode button to modify the day of the week. The current day willblink on and off. Press the UP ARROW and DOWN ARROWbuttons until the correct day is shown. Press and hold the Modeand Fan buttons simultaneously to exit the Set Clock mode.Configure Advanced Setup — To enter the advancedsetup screens of the thermostat, press the Mode and Fanbuttons simultaneously for 10 seconds. Set thermostat mode toOFF before configuring the thermostat.NOTE: The display will change after 2 seconds. This is aquick configuration to set the clock only. Continue to holddown the Mode and Fan buttons for 10 seconds to enterAdvanced Setup mode.The display will change. If only Advanced Setup Steps 1and 2 are accessible, then the buttons were not held down longenough. The Advanced Setup Step number is shown in the topright corner of the thermostat screen. Use the Mode button toadvance through the steps. There are 15 Advanced Setup Steps.Use the UP and DOWN ARROW buttons to change thesettings. See Table 3. Press the Mode and Fan buttons at thesame time to exit the Advanced Setup mode.NOTE: Refer to the Set Clock section for Advanced SetupSteps 1 and 2.DISPLAY CONFIGURATION (Step 3) — The Display con-figuration is used to select what the thermostat will displaywhen it is not being used. If the configuration is set to ON, thethermostat will display mode, fan operation, set points, androom temperature. If the configuration is set to OFF, the thermo-stat will only display the time. If any button is pressed, thethermostat screen will return to full display. The default is ON.SINGLE OR DUAL SET POINT CONFIGURATION (Step4) — Step 4 is used to configure the thermostat for single ordual set point operation. The configuration can be set to 1 or 2.The default is 2. When the configuration is set to 1, then thereis only one set point which is used for both heating and cooling.When the configuration is set to 2, then there are two set points(one for heating, one for cooling).TWO OR FOUR PIPE SYSTEM CONFIGURATION(Step 5) — Step 5 is used to configure the thermostat for use ina 2-pipe or 4-pipe system. When the configuration is set to 2,the thermostat will be configured for use with a 2-pipe system.When the configuration is set to 4, the thermostat will beconfigured for use with a 4-pipe system. The default is 4.NOTE: Advanced Setup Step 6 will only be shown if Step 5 isset to 2.TWO-PIPE SYSTEM OPERATION (Step 6) — Step 6 isused to configure the thermostat for use in a 2-pipe system.The configuration can be set to 1, 2, 3, 4, or 5. The default is 3.When the Two-Pipe Operation configuration is set to 1, thetwo-pipe system will function as a Heat-Only system. Whenthe Two-Pipe Operation configuration is set to 2, the two-pipesystem will function as a Cool-Only system. When the Two-Pipe Operation configuration is set to 3, the two-pipe systemwill function as a Heat/Cool Auto-Changeover system. Whenthe Two-Pipe Operation configuration is set to 4, the two-pipesystem will function as a Heat/Cool system with auxiliary elec-tric heat (lockout electric heat when hot water is available).When the Two-Pipe Operation configuration is set to 5, thetwo-pipe system will function as a Heat/Cool system with totalelectric heat (no hot water heat).FAN OPERATION (Step 7) — If the fan operation is set toON, the fan will operate at continuous low speed. If the fanoperation is set to OFF, the fan will cycle off and will only beenergized during a heating or cooling cycle (AUTO mode). Thedefault is ON.NOTE: When a remote temperature sensor is used, the choiceshould be Fan ON.DEADBAND (Step 8) — The deadband is the difference intemperature above the cooling set point or below the heatingset point that the thermostat will wait before turning on the firststage of heating or cooling. For example, if the cooling setpoint is 82 F (28 C) and the deadband is 2 degrees, the firststage of cooling will not be energized until the temperaturereaches 84 F (29 C). The range of values is 1 to 6 degrees. Thedefault is 2 degrees.EXISTING WIREDESIGNATION FUNCTION TERMINALCONNECTIONY1, Y, or C Cooling Y1W1, W, or H Heating W1Rh, R, M, Vr, or A Power RC Common CG, F, or LOW Low Fan Speed GMED Medium Fan Speed G2HIGH High Fan Speed G3EXISTING WIREDESIGNATION FUNCTION TERMINALCONNECTIONY1, Y, or C Water Valve Y1W1, W, or H Strip Heater W1Rh, R, M, Vr, or A Power RC Common CG, F, or LOW Low Fan Speed GMED Medium Fan Speed G2HIGH High Fan Speed G34 1/4”4 1/4”3 1/8”3 1/8”Fig. 2B — Plastic Mounting Plate Dimensions