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Carrier 33CS, Installation, Service, And Troubleshooting Instructions

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Carrier 33CS Installation, Service, And Troubleshooting Instructions Download Page 5

5

                                                                  LEGEND

DX

—

Direct Expansion Coil Sensor

IAQ —

Indoor-Air Quality Sensor

FSS —

Filter Status Sensor

OAT —

Outdoor-Air Temperature Sensor

HS

—

Humidity Sensor

SAT —

Supply-Air Temperature Sensor

NOTE: Humidity Sensor and Filter Status Switch
cannot be wired at the same time.

Fig. 3 — TEMP System Wiring

Summary of Contents for 33CS

Page 1: ...midity Sensor 14 Indoor Air Quality Sensor 14 Fan Filter Status Switch 15 CONTROL OF HEATING AND COOLING EQUIPMENT 15 18 Heating Cooling Equipment Interface 15 System Switches 15 Fan Switch 16 Fan Operation For Heat 16 Zone Caller 16 Page System Mode 16 Equipment Operation 16 Equipment Operation With Economizer Control 16 Optimize Staging 17 System Status Display 17 System Time Guards 17 Temperatu...

Page 2: ...tures serves as interface between thermostat HVAC unit and any external sensors powered by 24 vac 10 va supplies thermostat with 10 vdc INSTALLATION Thermostat Placement Begin the thermostat instal lation by determining where the thermostat will be located In most cases this will be pre determined by the building plans The thermostat should be located on an interior wall about 5 ft from the ground...

Page 3: ...3 Fig 1 TEMP System Thermostat with Timeclock Fig 2 TEMP System Thermostat without Timeclock FRONT VIEW SIDE VIEW FRONT VIEW SIDE VIEW ...

Page 4: ...pack the relay pack will provide power to the thermostat The heating or cooling set points will appear on the thermostat display screen The ther mostat is now ready to be programmed If the display is blank or blinking recheck the wiring connections between the ther mostat and relay pack There should be a steady 10 vdc be tween the red and white connections CONFIGURATION Configuration can be done e...

Page 5: ...Q Indoor Air Quality Sensor FSS Filter Status Sensor OAT Outdoor Air Temperature Sensor HS Humidity Sensor SAT Supply Air Temperature Sensor NOTE Humidity Sensor and Filter Status Switch cannot be wired at the same time Fig 3 TEMP System Wiring ...

Page 6: ...6 Fig 4 Relay Pack Wiring without Auxiliary Relay TSR 01 Fig 5 Relay Pack Wiring with Auxiliary Relay 33CSUCE 06 ...

Page 7: ... 2 IAQ 3 Reversing Valve 4 Economizer 0 0 4 4 10 Optimize Staging ON OFF ON 4 11 Cooling Temperature Lockout OFF OFF ON 4 12 Cooling Lockout Set Point F 40 10 80 4 13 Heating Temperature Lockout OFF OFF ON 4 14 Heating Lockout Set Point F 60 10 80 4 15 Minimum Heat Run Time Minutes 3 1 30 4 16 Minimum Cool Run Time Minutes 3 1 30 4 17 Pre Occupancy Purge OFF OFF ON 4 18 Fan Switch Control 0 Use Fa...

Page 8: ...Schedule Broadcast OFF OFF ON 9 3 Network Time Request OFF OFF ON 9 4 Receive Network Time ON OFF ON 9 5 Network Time Broadcast OFF OFF ON 9 6 Daylight Savings Time Start Month 4 1 12 9 7 Daylight Savings Time Start Week 1 1 5 9 8 Daylight Savings Time Start Day 7 1 7 9 9 Daylight Savings Time Added Minutes 60 0 90 9 10 Daylight Savings Time Stop Month 10 1 12 9 11 Daylight Savings Time Stop Week ...

Page 9: ...again and the day of the week will flash Press the adjust button until the correct day is shown Press the select button to return to normal timeclock operation Re install the thermostat cover NOTE If the TEMP system thermostat receives time from a network device the TEMP system thermostat time will revert back to network time after the transmission Alternate Information Display Allows the TEMP sys...

Page 10: ...ddressed below its own address To activate a Communication Check set the category to 7 and the option to 2 Press a left set point button to toggle the option to ON When the TEMP system thermostat has completed the system scan the Communication Check is auto matically deactivated During a Communication Check the TEMP system ther mostat scans consecutive device addresses starting with the de vice ad...

Page 11: ...he TEMP system thermostat during the unoccupied mode The range of allowable temperatures is 50 to 99 F for heating or cooling To configure the unoccupied cooling set point enter catego ry 1 option 3 The left set point buttons control the unoccupied cooling set point Press the top set point button to raise the set point Press the bottom set point button to lower the set point The unoccupied cooling...

Page 12: ...ted contacts and be wired in series with the negative leg of the remote room sensor See Fig 8 When the button is held in between 1 and 5 seconds the controller schedule will enter the Occupied mode Remote override cannot be applied to a conroller that uses multiple remote sensors or the on board space sensor To disable unoccupied override configure the Unoccupied Override Time Limit to 0 hours UNO...

Page 13: ...ure is shown The range of possible temperatures is 30 to 180 F SET BACK OVERRIDE Whenever the set back override SBO contacts are closed the TEMP thermostat will proceed in Occupied mode When the SBO contacts open the TEMP thermostat will continue to follow the local occupancy sched ule it is programmed to follow The SBO dry contacts are field supplied See Fig 10 NOTE The set back override SBO cont...

Page 14: ...ate the indoor air humidity sensor configure category 5 option 12 Obtain a correct humidity reading with an accurate psychrometer The range of possible humidity readings is 0 to 100 Use the left set point buttons to raise or lower the read ing until the desired humidity is shown Indoor Air Quality Sensor The Comfort IAQ fea ture allows the Carrier Comfort system to interface with the economizer on...

Page 15: ...ilter sta tus switch The default is OFF Refer to the fan filter status installation instructions for more information CONTROL OF HEATING AND COOLING EQUIPMENT The system heating and cooling equipment is operated by the TEMP system thermostat in response to the zone condi tions The TEMP system thermostat uses the System Mode to determine the zone requirements of the system The TEMP system thermosta...

Page 16: ...ng Temperature Lockouts option is set to ON and the outside air temperature exceeds the lockout temperature set point Equipment Operation The TEMP system thermo stat operation of the heating cooling and reversing valve re lays is determined by the zone demand The Auxiliary Relay option configures the TEMP system thermostat for equipment operation During a system mode a stage of heating or cooling ...

Page 17: ... operate more economically without sac rificing individual zone comfort When zone temperature conditions exceed the desired occu pied level if first stage heating or cooling is able to improve the occupied level second stage heating or cooling is not required The TEMP system thermostat uses Optimized Staging to follow zone conditions and determine when use of first stage is improving zone conditio...

Page 18: ...r up time guard determines how long the TEMP system thermostat will wait before starting the heating cooling equipment when the TEMP system thermostat is powered up The length of the time guard is 5 minutes plus 0 to 189 seconds determined by the first 6 bits of the address of the heating cooling equipment This keeps the equipment from starting simultaneously which keeps peak energy usage down Tem...

Page 19: ...nditions in the zone Error Code Display An error code representing the TEMP system SE SF and HF diagnostic functions can be dis played to indicate which error has been declared The 2 letters located in the bottom of the display represent the type of error The 3 numbers located in the top of the display identify the specific error When the Error Code Display option is ON an error code will be displ...

Page 20: ...int continuously for 10 minutes During a system cooling mode an SE08 error occurs when the supply air temperature is higher than the Cooling Mode Error Set Point During a system heat ing mode an SE07 error occurs when the supply air tempera ture is lower than the Heating Mode Error Set Point To clear a system error use the Unit Reset function The Unit Reset function is in category 7 option 11 The ...

Page 21: ...ng to rise to higher than normal temperature levels However this se quence reduces the temperature build up in the unit and keeps the heat exchanger operating within temperatures to prevent failure During No System Mode If the duct temperature rises to greater than 175 F the indoor fan is started The fan will remain on if that temperature does not drop below 150 F after 3 min utes The bypass dampe...

Page 22: ...Alarm System Name Network Configured SF65 Error Code Display OFF SF67 Alternate Information OFF SF68 Comfort Trend Demand 0 SF69 Comfort Trend Time Limit 2 SF70 HVAC Usage Meter Data OFF SF71 Override Usage Meter Data OFF SF73 Heat Mode Error Set Point 0 SF74 Cool Mode Error Set Point 140 SF75 Device Element Address 0 SF76 Security Level 1 SF77 Device Bus Number 0 SF79 Network Time Broadcast OFF S...

Page 23: ...ead ing below 30 F or greater than 180 F The duct temperature sensor can be recalibrated The HF05 error will automatically clear when the sensor reading is back within the allowable range To check the duct temperature sensor 1 Check that the duct temperature sensor wiring and con nections to the relay board are physically intact Ensure the 5 conductor control wiring running between the relay pack ...

Page 24: ...e the use of incorrect data Each portion of information stored by the TEMP system ther mostat is verified to eliminate the use of incorrect data If incor rect data is found the TEMP system thermostat will reset and replace the incorrect data with the default value When possible system communication and data storage faults are corrected by the TEMP system thermostat When corrections cannot be made ...

Page 25: ...e The range of values is 0 to 90 minutes The default is 60 minutes DAYLIGHT SAVINGS TIME STOP MONTH The Day light Savings Time Stop Month tells the TEMP system ther mostat which month to move its internal clock back for the end of daylight savings time To set the month configure category 9 option 10 Use the left set point buttons to raise or lower the value January is 1 February is 2 and so on The...

Page 26: ... the TEMP system thermostat will be in When the Loadshed sends a Redline command to the TEMP system thermostat the TEMP system thermostat will turn off second stage heating or cooling operation if the second stage is currently operating and not allow second stage heating or cooling to come on When the Loadshed sends a Loadshed command to the TEMP system thermostat the TEMP system thermostat will t...

Page 27: ...uring a heat mode after 10 minute heating peri od if discharge temperature does not increase above 90 F a heat mode error is generated After discharge temperature in creases to above 90 F the alarm is normalized During cooling mode after a 10 minute cooling period if discharge temperature does not drop to below 55 F a cool mode error is generated After the discharge temperature de creases to below...

Page 28: ...e the alert configure the Humidity Sensor Fan Filter Switch option category 5 option 11 to position 2 The TEMP system thermostat will use the sensor as a Filter Status Switch CONFIGURATION TO NORMALIZE ALERT An SE09 alarm alert will not stop operation of the system A manual reset is required to clear this alert CONFIGURATION EXAMPLE The Filter Status sensor will close contacts alert when different...

Page 29: ...he duct temperature rises to greater than 175 F the indoor fan is started The fan will remain on if that temperature does not drop below 150 F after 3 min utes A Stuck Gas Valve alarm SE13 will be initiated During a Cooling Mode If the duct temperature does not drop below 80 F within 10 minutes the cooling mode will be dropped for 10 minutes The No System Mode logic will test for this condition Du...

Page 30: ...ring block or TEMP system thermostat if required BLINKING DISPLAY If the TEMP system thermostat dis play shows 4 rotating zeros that either blink on and off or that are constantly displayed it is an indication the TEMP system thermostat is continuously going through the power up sequence and cannot enter normal operating mode Check for any of the following conditions that would cause the display t...

Page 31: ...ems that affect the decision of the TEMP system thermostat to energize the second stage of heating or cooling 1 When a system mode is selected and the reference zone demand is equal to or greater than 8 F the TEMP system thermostat Energy Saver Lockout function automatically disables the second stage operation of the unit for approx imately 20 minutes This function saves energy by allow ing the fi...

Page 32: ...de Usage Meter 19 HVAC Usage Meter 19 Indoor Air Humidity Sensor 14 Indoor Air Humidity Sensor Calibration 14 Indoor Air Quality Alarm Delay 15 Indoor Air Quality Economizer Delay 14 Indoor Air Quality Error 20 Indoor Air Quality High Temperature Lockout 15 Indoor Air Quality Humidity Lockout Set Point 14 Indoor Air Quality Low Temperature Lockout 15 Indoor Air Quality Maximum Space Temperature Re...

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