Carrier 33CS Installation, Service, And Troubleshooting Instructions
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Carrier 33CS Installation, Service, And Troubleshooting Instructions

Carrier 33CS Installation, Service, And Troubleshooting Instructions

Unitary controller thermostat
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See also: Owner's Manual , Operating Manual
Troubleshooting Instructions
CONTENTS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
TEMP System Components . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Thermostat Placement . . . . . . . . . . . . . . . . . . . . . . . 2
Wiring Requirements . . . . . . . . . . . . . . . . . . . . . . . . . 2
Relay Pack Installation . . . . . . . . . . . . . . . . . . . . . . . 4
Wiring Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Provide Power To Relay Pack . . . . . . . . . . . . . . . . . 4
CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Manual Configuration . . . . . . . . . . . . . . . . . . . . . . . . 4
Computer Configuration . . . . . . . . . . . . . . . . . . . . . . 4
System Status Display . . . . . . . . . . . . . . . . . . . . . . . 9
Rotating Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Electronic Timeclock . . . . . . . . . . . . . . . . . . . . . . . . . 9
Alternate Information Display . . . . . . . . . . . . . . . . . 9
Display Freeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9,10
Device Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Device Bus Number . . . . . . . . . . . . . . . . . . . . . . . . . 10
Device Access Security Level . . . . . . . . . . . . . . . . 10
COMMUNICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . 10
Information Broadcast . . . . . . . . . . . . . . . . . . . . . . . 10
Communication Check . . . . . . . . . . . . . . . . . . . . . . 10
OCCUPIED MODE OPERATION . . . . . . . . . . . . . 10,11
Occupied Set Points . . . . . . . . . . . . . . . . . . . . . . . . 10
Occupied Set Point Limiting . . . . . . . . . . . . . . . . . 11
UNOCCUPIED MODE OPERATION . . . . . . . . . . 11,12
Unoccupied Set Points . . . . . . . . . . . . . . . . . . . . . . 11
Occupancy Schedules . . . . . . . . . . . . . . . . . . . . . . . 11
Schedule Number . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Unoccupied Override . . . . . . . . . . . . . . . . . . . . . . . . 12
Optimal Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
SENSORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-15
Zone Temperature Sensor . . . . . . . . . . . . . . . . . . . 12
Zone Temperature Monitoring . . . . . . . . . . . . . . . . 12
Remote Zone Temperature Sensor . . . . . . . . . . . 13
Duct Temperature Sensor . . . . . . . . . . . . . . . . . . . 13
DX Coil Temperature Sensor . . . . . . . . . . . . . . . . . 13
Outside-Air Temperature Sensor . . . . . . . . . . . . . 13
Indoor-Air Humidity Sensor . . . . . . . . . . . . . . . . . . 14
Indoor-Air Quality Sensor . . . . . . . . . . . . . . . . . . . 14
Fan/Filter Status Switch . . . . . . . . . . . . . . . . . . . . . 15
EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-18
System Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Fan Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Fan Operation For Heat . . . . . . . . . . . . . . . . . . . . . 16
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Book 1
4
PC 111
Tab
11a 13a
Installation, Service, and
Page
Catalog No. 809-120
Printed in U.S.A.
Unitary Controller Thermostat
Zone Caller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
System Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Equipment Operation . . . . . . . . . . . . . . . . . . . . . . . . 16
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Optimize Staging . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
System Status Display . . . . . . . . . . . . . . . . . . . . . . 17
System Time Guards . . . . . . . . . . . . . . . . . . . . . . . . 17
Temperature Lockouts . . . . . . . . . . . . . . . . . . . . . . 18
Pre-Occupancy Purge . . . . . . . . . . . . . . . . . . . . . . . 18
METERING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18,19
HVAC Usage Meter . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Override Usage Meter . . . . . . . . . . . . . . . . . . . . . . . 18
HVAC Override Usage Meter . . . . . . . . . . . . . . . . . 19
DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19-24
Error Code Display . . . . . . . . . . . . . . . . . . . . . . . . . . 19
System Errors (SE) . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Storage Failure (SF) Errors . . . . . . . . . . . . . . . . . . 21
Hardware Failure (HF) Errors . . . . . . . . . . . . . . . . 23
TEMP System Thermostat Reset . . . . . . . . . . . . . 24
Network Time Broadcast . . . . . . . . . . . . . . . . . . . . 24
Network Time Request . . . . . . . . . . . . . . . . . . . . . . 24
Receive Network Time . . . . . . . . . . . . . . . . . . . . . . . 24
Broadcast Acknowledger . . . . . . . . . . . . . . . . . . . . 24
Global Schedule Broadcast . . . . . . . . . . . . . . . . . . 25
Daylight Savings Time . . . . . . . . . . . . . . . . . . . . . . 25
HOLIDAY SCHEDULES . . . . . . . . . . . . . . . . . . . . . . 25
ALARM OPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 25,26
Equipment Priority . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Communication Failure Retry Time . . . . . . . . . . . 26
Re-Alarm Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Alarm Routing Control . . . . . . . . . . . . . . . . . . . . . . 26
Alarm System Name . . . . . . . . . . . . . . . . . . . . . . . . 26
LOADSHED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
ALARM TROUBLESHOOTING . . . . . . . . . . . . . . 26-29
(Heat/Cool Mode Error) . . . . . . . . . . . . . . . . . . . . 27
Fan Status Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Filter Status Alert . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Indoor-Air Quality Status Alarm . . . . . . . . . . . . . . 28
Stuck Gas Valve Alarm . . . . . . . . . . . . . . . . . . . . . . 29
NETWORK ACCESSIBLE VARIABLES . . . . . . . 29,30
TROUBLESHOOTING PROCEDURES . . . . . . . 30,31
General Operating Problems . . . . . . . . . . . . . . . . . 30
Equipment Operation Problems . . . . . . . . . . . . . . 31
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Form VTS-2SI
Pg 1
33CS
TEMP System
Page
8-95
Replaces: New

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Summary of Contents for Carrier 33CS

  • Page 1: Table Of Contents

    33CS TEMP System Unitary Controller Thermostat Installation, Service, and Troubleshooting Instructions Page CONTENTS Page Zone Caller ....... . . 16 System Mode .

  • Page 2: General

    In most cases, this will be pre-determined by the The Carrier Comfort System TEMP System is designed building plans. to be compatible with the full line of Carrier single-zone heat- The thermostat should be located on an interior wall, about ing and cooling units.
  • Page 3 Fig. 1 — TEMP System Thermostat with Timeclock Fig. 2 — TEMP System Thermostat without Timeclock...

  • Page 4: Relay Pack Installation

    An indoor- accept the current category for modification. The word ‘‘op- air quality (IAQ) sensor is designed for use with the Carrier tion’’ will be displayed, along with the current option num- Comfort system. The sensor has a range of 0 to 5000 ppm ber.
  • Page 5 LEGEND — Direct Expansion Coil Sensor — Indoor-Air Quality Sensor FSS — Filter Status Sensor OAT — Outdoor-Air Temperature Sensor — Humidity Sensor SAT — Supply-Air Temperature Sensor Fig. 3 — TEMP System Wiring...
  • Page 6 Fig. 4 — Relay Pack Wiring without Auxiliary Relay Fig. 5 — Relay Pack Wiring with Auxiliary Relay...
  • Page 7 Fig. 6 — TEMP System Thermostat Display Screen Fig. 7 — TEMP System Thermostat Configuration Buttons Table 1 — TEMP System Thermostat Categories and Options OPTION DESCRIPTION DEFAULT MINIMUM MAXIMUM → CATEGORY 1.0 SET POINTS Cooling Set Point Low Limit (F) Heating Set Point High Limit (F) Unoccupied Cooling Set Point (F) Unoccupied Heating Set Point (F)
  • Page 8 Table 1 — TEMP System Thermostat Categories and Options (cont) OPTION DESCRIPTION DEFAULT MINIMUM MAXIMUM 5.10 Fan Status Switch Humidity Sensor/Filter Status (0 — No Sensor, 1 — Indoor Humidity 5.11 Sensor, 2 — Filter Status Switch) 5.12 Humidity Sensor Calibration Indoor Humidity CATEGORY 6.0 SUPPLEMENTAL HEAT No configuration needed.

  • Page 9: Temp System Thermostat Display

    The Device Address option allows the TEMP system ther- a network device, the TEMP system thermostat time will re- mostat to establish an identity on the Carrier network for vert back to network time after the transmission. transmitting and receiving information. The device address is set in category 8, option 1.

  • Page 10: Device Bus Number

    thermostat has completed the system scan, the Communi- Device Bus Number — There can be secondary bus- cation Check is automatically deactivated. ses connected to a single primary bus. On the primary bus, each secondary bus has an address. When the TEMP system During a Communication Check, the TEMP system ther- primary thermostat resides on a secondary bus, the bus ad- mostat scans consecutive device addresses starting with the...

  • Page 11: Occupied Set Point Limiting

    during the unoccupied mode. The range of allowable tem- Occupied Set Point Limiting — The occupied set peratures is 50 to 99 F for heating and 40 to 99 F for cooling. point limits establish the maximum allowable heating set point and the minimum allowable cooling set point.

  • Page 12: Schedule Number

    system out of unoccupied mode and into occupied mode. The Start Time — When the select button is pressed from the TEMP system thermostat will store the recovery rate for first option screen, the hours number will flash. The hours heating and cooling separately.

  • Page 13: Remote Zone Temperature Sensor

    → sensor(s) (field installed) for temperature information. When DX COIL TEMPERATURE SENSOR CALIBRATION — the Room Sensor option is set to 3, the TEMP system ther- To calibrate the DX coil temperature sensor, Configure cat- mostat averages the temperatures it receives from its local egory 5, option 7.

  • Page 14: Indoor-Air Humidity Sensor

    The Comfort IAQ fea- mode brings in fresh outdoor air, the space temperature will ture allows the Carrier Comfort system to interface with the rise or fall depending on the outside-air temperature. The economizer on the HVAC equipment and maintain the qual- IAQ Low Temperature Lockout Set Point is the minimum ity of indoor air within acceptable limits.

  • Page 15: Fan/Filter Status Switch

    will be shown. The range of acceptable values is 0 to 240 to 0, the thermostat will use the setting of its mechanical minutes in 1-minute increments. Use the left set point but- cool switch. When the option is set to 1, the thermostat will tons to set the time limit to the desired value.

  • Page 16: Fan Operation For Heat

    cooling demand is 2.0° F or greater, the second stage of cool- Fan Operation For Heat — When the Fan Operation ing is energized or optimized staging is followed. The sec- For Heat option is set to OFF and the fan switch is set to ond stage of cooling is released when demand drops below AUTO, the fan relay is energized by the TEMP system ther- 1.0°...

  • Page 17: Optimize Staging

    EQUIPMENT OPERATION DURING A SYSTEM HEAT- During equipment operation, when a limit is exceeded, ING MODE — The TEMP system thermostat utilizes the the following relays are deenergized: relay pack to energize the first stage of heating after system • Second Stage Limit. The second stage relay (H2 or C2) is heating mode is selected.

  • Page 18: Temperature Lockouts

    When the Time Guard Between Modes option is OFF, the Heating Lockout Temperature Set Point — TEMP system thermostat cannot change system modes until Heating Lockout Temperature Set Point establishes the sys- a 30-second time delay has expired. tem outside-air trip temperature for the Temperature Lock- outs and the Supplemental Heat Lockout.

  • Page 19: Hvac Override Usage Meter

    To configure the Override Usage Meter option, set cat- COMFORT TREND ERROR (SPACE TEMPERATURE egory 7, option 7. Use the left set point buttons to configure ALARM) (SE01) — A Comfort Trend error is a system er- the option ON or OFF. The default is OFF. ror that provides information on the ability of the system to maintain temperature conditions in its reference zone.
  • Page 20 To clear an SE02, SE03, or SE04 error, reset the full meter temperature until the desired set point value is shown. The through communications and use the Unit Reset function. range of acceptable values is 0 to 140 F in 1° F increments. The Unit Reset function is in category 7, option 11.

  • Page 21: Storage Failure (Sf) Errors

    STUCK GAS VALVE (SE13) — The Stuck Gas Valve se- During a Heating Mode– No action is required in this mode. quence is used to allow the system to properly react to a The alarm can be cleared or erased from the system in 2 failure mode of the HVAC unit when the gas valve becomes ways: stuck in the open position.
  • Page 22 → Table 4 — Storage Failure (SF) Errors (cont) ERROR INFORMATION AFFECTED DEFAULT VALUE(S) SF51 Room Sensor SF53 DX Coil Temperature Sensor SF54 DX Coil Temperature Sensor Calibration Factory Calibrated SF55 Outdoor-Air Temperature Sensor SF56 Outdoor-Air Temperature Sensor Calibration Factory Calibrated SF61 Alarm System Name Network Configured...

  • Page 23: Hardware Failure (Hf) Errors

    thermostat using the Remote Room Sensor Calibration Hardware Failure (HF) Errors — A Hardware Fail- function (category 5, option 3) and an accurate thermom- ure (HF) error is a error that corresponds to a hardware fail- eter. Measure the temperature at the remote room tem- ure at the TEMP system thermostat, associated sensors, or perature sensor location using the accurate thermometer.

  • Page 24: Temp System Thermostat Reset

    BROADCAST/DAYLIGHT SAVINGS TIME RANGE — An HF10 error is issued when the outdoor-air As a part of the Carrier Comfort system, on the temperature sensor is reading below −40 F or greater than network, the TEMP system thermostat can send and receive 150 F.

  • Page 25: Global Schedule Broadcast

    The alarms options of the TEMP system thermostat are system thermostat how many minutes to move the clock for- responsible for transmitting alarms on the CCN (Carrier Com- ward for daylight savings time. To set the number of min- fort Network). A specified device (such as the Building Su- utes, configure category 9, option 9.

  • Page 26: Communication Failure Retry Time

    A value of 00000000 disables all alarms 7.4 - 0.1° F going out on the CCN. The option is configured through Configuration Increments 7.5 - 1 minute Carrier network access software. Associated Functions None Alarm System Name — The Alarm System Name op- OPERATION —...

  • Page 27: Discharge-Air Temperature Alarm (Heat/Cool Mode Error)

    The system is operating normally without alarm during CLEARING THE ALARM FROM THE THERMOSTAT — the cooling mode. The trend of the space temperature indi- Heat/Cool Mode Alarms are cleared or ‘‘erased’’ from the cates that the system is unable to keep the space within set system in 2 ways: points, and space temperature rises to 76.5 degrees F.

  • Page 28: Filter Status Alert

    CONFIGURATION TO NORMALIZE ALARM — To nor- CONFIGURATION TO NORMALIZE ALERT — An SE09 malize the alarm, no is configuration required. Follow the alarm (alert) will not stop operation of the system. A manual procedure to clear the alarm below. reset is required to clear this alert.

  • Page 29: Stuck Gas Valve Alarm

    The TEMP system has 3 lockout features which will pre- vent IAQ mode if the outdoor humidity is too high or the CONFIGURATION TO ACTIVATE ALARM — No con- outdoor temperature is too high or too low. When the TEMP figuration is needed to activate this alarm.

  • Page 30: Troubleshooting Procedures

    Table 13 — Network Software Access Table Names General Operating Problems NO DISPLAY — If the TEMP system thermostat display TABLE DESCRIPTION TABLE NAME remains blank after 24 vac power has been applied to the Points Display Table ZONESTAT relay pack, it is an indication that power is not reaching the Set Point Table SETPOINT TEMP system thermostat.

  • Page 31: Equipment Operation Problems

    2. When the TEMP system thermostat Comfort Trend Stag- Equipment Operation Problems — The TEMP sys- ing function (category 7, options 4 and 5) is configured tem thermostat is designed to energize constant volume heat- to a value other than zero, the TEMP system thermostat ing and cooling equipment to satisfy the system comfort will energize the second stage of heating or cooling only requirements.

  • Page 32: Index

    Indoor-Air Quality Maximum Space Temperature Reset, 14 Zone Temperature Sensor Calibration, 12 Indoor-Air Quality Sensor, 14 Copyright 1995 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 PC 111 Catalog No.

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