Carrier 33WIFISTAT43 Wi-Fi Thermostat Installation Guide

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

Wi-Fi Thermostat  

Installation Instructions  

Part No. 33WIFISTAT43  

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . .14  

Fault Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15  

Recovering from a Power Outage . . . . . . . . . . . . . .16  

Resetting Wi-Fi Access . . . . . . . . . . . . . . . . . . . . . . .16  

COMPLIANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16  

FCC Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . .16  

BACnet Compliance . . . . . . . . . . . . . . . . . . . . . . . . .16  

APPENDIX A: BACNET POINTS LIST . . . . . . . . . . . .17  

CONTENTS  

Page  

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  

WIRING THE WIFI THERMOSTAT . . . . . . . . . . . . . . . 2  

To Wire the Thermostat to Equipment . . . . . . . . . . . 2  

To Wire and Mount the Thermostat . . . . . . . . . . . . . . 3  

To Wire for BACnet Communication . . . . . . . . . . . . . 4  

REGISTERING AND SETTING UP A MOBILE DEVICE  

FOR ENHANCED ACCESS . . . . . . . . . . . . . . . . . . . 4  

INTRODUCTION  

The Wi-Fi thermostat is a thermistor-based wireless thermostat  

that can sense a 10K Type II OAT or a remote space or return air  

sensor and can control up to 4 heating and 3 cooling stages.  

Using the WIFIStat Website or App . . . . . . . . . . . . . . 4  

CONFIGURING THE SYSTEM . . . . . . . . . . . . . . . . . . . 5  

To Configure Advanced System Settings . . . . . . . . . 5  

OPERATING YOUR SYSTEM USING  

THE WIFISTAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  

The Wi-Fi thermostat package includes:  

•

•

Thermostat  

Occupancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  

Supply Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  

Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  

Econ Enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  

Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9  

Dehumidification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  

Humidification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  

Filter Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  

Holidays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  

BACnet Integration . . . . . . . . . . . . . . . . . . . . . . . . . . 10  

USING THE WIFISTAT SCREENS . . . . . . . . . . . . . . 10  

Home . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  

• SCREEN FUNCTIONS  

Mounting Hardware - two screws with drywall anchors  

and one security screw  

•

Quick Start Guide  

Some of the features:  

•

Supporting standard air conditioning and heat pump roof-  

top and split units  

•

•

•

•

7-day scheduling with up to 4 periods per day  

Holiday scheduling  

Full-color touchscreen that’s easy to navigate  

Remote programming and monitoring using secure Apple^®  

or Android^® mobile app or Web portal  

•

•

Text and email service alerts  

Automatic software updates via Wi-Fi  

Setpoint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  

Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  

Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  

Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  

Humid-MiZer™/Perfect Humidity™/Hot Gas Reheat . 12  

Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  

Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  

Holiday . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  

Banner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  

Date and Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12  

Software Screen and Backlight Screen . . . . . . . . . 13  

Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13  

Lockout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  

Clean . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  

Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  

Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14  

INSTALLATION TEST . . . . . . . . . . . . . . . . . . . . . . . . 14  

SPECIFICATIONS  

Power requirements 24 Vac +/- 10% @ 3VA  

Network  

Wi-Fi connectivity supports Wi-Fi: 802.11 a/b/  

g/n standards on 2.4 GHz networks  

Requirements  

Environmental  

Operating Range  

32° to 104°F (0° to 40°C), 10 to 95% relative  

humidity, non condensing  

Standard 4 x 2 in. electrical box using the  

6-32 x 1/2 in. mounting screws provided  

Mounting  

Width:  

Height:  

Depth:  

5.13 in. (13 cm)  

3.23 in. (8.2 cm)  

0.94 in. (2.4 cm)  

Overall Dimensions  

Conforms to the BACnet Application Specific  

Controller (B-ASC) Device Profile as defined  

in ANSI/ ASHRAE Standard 135-2012  

(BACnet) Annex L, Protocol Revision 14  

BACnet Support  

Listed By  

FCC Part 15, Subpart J compliant  

NOTE: This service account must have appropriate privileges to  

export room lists and room reservations, but no more.  

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.  

Catalog No. 04-53500407-01 Printed in U.S.A. Form No. IIK-33WIFISTAT-01 Pg 1 2-24 Replaces: NEW  

VIEW FULL SCREEN PDF MANUAL

General	Details
Name	Carrier 33WIFISTAT43 Wi-Fi Thermostat Installation Guide
Make	Carrier
Language	English
Filetype	PDF (Download)
File size	0.39 MB

Download PDF

(1 votes, average: 5.00 out of 5)

Loading...

• ALL THERMOSTAT INSTRUCTIONS & USER MANUALS
• Carrier

Carrier 33WIFISTAT43 Wi-Fi Thermostat Installation Guide Overview

Summary of Contents

• Page 1: Wi-Fi thermostat installation instructions provide essential information for setup and troubleshooting. The Wi-Fi thermostat is a thermistor-based wireless thermostat that can control multiple heating and cooling stages. Key features include remote programming and monitoring through a mobile app or web portal. Specifications detail power requirements and environmental operating ranges. Wiring instructions cover connecting the thermostat to equipment and BACnet communication. Troubleshooting sections define faults and recovery steps after power outages. Compliance information includes FCC and BACnet standards. The document includes an appendix with a BACnet points list. Installation tests ensure proper functionality of the thermostat. The manufacturer reserves the right to change specifications without notice.
• Page 2: Wiring the WiFi thermostat To wire the thermostat to equipment See Fig. 1-7 for wiring details. Furnace/AC system Packaged rooftop units Water source heat pump Hydronic fan coil Air handler or CDX fan coil/AC split system Dual fuel systems (furnace and heat pumps)
• Page 3: To wire and mount the thermostat, turn off 24 V a c power at the equipment circuit breaker or the system switch. Place the thermostat base against your wall to mark drill holes. Drill the anchor holes or use existing holes to mount the wall-plate. Pull wires through the opening in the base. Attach the base to the wall with the provided screws. Straighten the wires and match your wire configuration to the terminals on the base. Connect each wire individually by pushing down on the quick connect tab, inserting it into the connector opening, and then releasing the tab. Attach the thermostat face by aligning it with the hinge guide on top of the back. Turn on the 24 V a c power. The thermostat displays the HOME screen. Configure your system as described in this document.
• Page 4: Select setup new thermostat and follow the WiFi instructions. See Fig. 11 for BACnet wiring terminal locations. After registering the thermostat, enter servicing contractor's name and phone number on the service info screen. Use the specified type of wire and cable for maximum signal integrity. On the thermostats screen, select the thermostat from the list and the mobile app’s home screen appears. You can monitor the thermostat operation, set up occupied and unoccupied schedules, adjust setpoints, share thermostat access, and create groups of thermostats. Connect communication wiring to terminals A+ and B-. Downloading the WIFIStat App provides enhanced access to your device. After downloading the WIFIStat App, select user setup and register new account. You can also register new accounts using the website mywifistat.com.
• Page 5: Configuring the system On the thermostat, swipe the HOME screen twice to the left to navigate to the MODE screen and ensure the MODE is OFF. Adjust the occupied and unoccupied setpoints by selecting each temperature. The default setting for fan operation is AUTO for both Occupied and Unoccupied periods. When operating in AUTO MODE, the fan only runs when there is an active heating or cooling demand. You can ONLY access the SYSTEM SETTINGS screens from the thermostat itself, not the app or web. Use the advanced options on the SYSTEM SETTINGS screens to configure and setup your system. Adjust the thermostat's humidify and dehumidify setpoints. Set Occupied and Unoccupied start times, depending on the configured number of periods and the user’s security level. You can select FACTORY DEFAULTS to restore all default settings to the original values. Enter the name and location of the thermostat for the user’s reference.
• Page 6: HEAT EQUIP TYPE — The equipment heating type. HEATING EQUIP STAGES — The number of gas heating stages or E-heating stages in the equipment. COMPRESSOR TYPE — The type of the unit's compressor(s). COMPRESSOR STAGES — The numbers of compressors. AUTO ALLOWED — Enables and disables the thermostat to automatically switch from heating to cooling. PROG OR NON-PROG — Allows the thermostat to operate as a non-programmable or a programmable thermostat. MAX HOLD TIME — The thermostat setpoints cannot be overridden by the user. FAHRENHEIT OR CELSIUS — The temperature scale. SMART RECOVERY — Transitions the conditioned space from one programmable temperature period to the next. REVERSING VALVE — Defines whether the ON state of the reversing valve is used for heating or cooling.
• Page 7: ID temp float inhibit allows a time delay applied to the ID temp fault, adjustable from 10 to 240 minutes. Cool lockout delays cooling equipment demands if the outdoor air temperature is below the selected value. Low cool lockout enables the thermostat to start all cooling stages based on the configured value. Low heat lockout enables the thermostat to start all compressor heating stages based on the configured value. Time between fuel types is the minimum time limit between switching from one fuel type to another. Cycle timer is the maximum number of heat cycles per hour. Humidifier output relay enables a field-installed humidifier if there is humidity demand and any heating equipment is on. Dehumidifier sets the output relay to enable a factory-installed system for dehumidification or to use the first stage of cooling. Max heat setpoint is the maximum heating setpoint available on the heat setpoint wheel. Aux heat lockout is the outdoor temperature value that locks out the auxiliary heat.
• Page 8: Occupancy output — When set to ON-Y3, ON-O/B, or ON-W2, selected relay output equals current occupancy state. Occupancy input — This setting changes the current heating and cooling setpoints to the option selected for max hold time. Hum output — Select which output to use for humidifier. Dehum output — Select the unassigned output to use for dehumidifier. Line frequency — Used to increment operational timers within the thermostat to ensure timing accuracy. MSTP max masters — Used to identify max number of masters for token passing on the MS/TP network. MSTP baud rate — The protocol's baud rate on the MS/TP network must be the same for all controllers. BACnet UTC offset — Offset applied to UTC time. Device ID — This is a unique identifier for this thermostat. BACnet BMS OCC — Use to enable or disable BACnet occupancy control.
• Page 9: Disconnect Wi-Fi disconnects the thermostat from the Wi-Fi network. Restoring defaults requires pressing and holding the button for 5 seconds. The cooling stage 5-minute minimum off-timer has expired. The space temperature has exceeded the cooling setpoint by the differential value. The thermostat supports various types of constant volume units. The cooling stages are controlled based on a drift algorithm and the configurable differential value. The thermostat can operate in programmable or non-programmable mode. The supply fan can be configured for on or auto modes. The thermostat can control up to 4 stages of heating for heat pump applications. The following conditions must be true for heating to operate: the outdoor air temperature must be below the heat lockout.
• Page 10: The space temperature has exceeded the heating setpoint. Filter status is based on a supply fan runtime. Additional stages are added and dropped based on demand. If the low heat lockout is configured for on, heat stages 1 and 2 are energized on a demand for heating. A filter status alert displays when the filter timer exceeds the configured number of hours. There is a maximum of 24 holiday periods that can be programmed. Dehumidification operates under specific conditions for equipped units. The thermostat supports various types of constant volume units. Dehumidification ends when specific conditions are met. The home screen is typically what the end user sees.
• Page 11: Screen functions provide an overview of the thermostat's capabilities. The Mode screen allows users to switch between different operational modes. The banner can be used to navigate to various screens by pressing or swiping. Wi-Fi signal strength is indicated by green bars, with red indicating no connection. Space temperature is displayed in whole numbers, with Fahrenheit as the default scale. Equipment status shows the current mode and indicates if the equipment is operating. The fan mode can be accessed by tapping the corresponding icons. Settings allow users to change or view thermostat options, with advanced settings available only from the thermostat. Setpoints can be adjusted using wheels for heat and cool settings. Humidity settings can be adjusted for humidify and dehumidify functions, with specific buttons indicating current states.
• Page 12: Cooling setpoint algorithm is used to adjust cooling based on dehumidification needs. The auto selection feature may violate ASHRAE 90.1 and California Title 24 regulations. Cooling setpoint adjustments vary based on the current temperature and dehumidify error. The program schedule allows users to navigate through days and set cooling periods. Overcooling by 2°F is permitted to meet dehumidification demands. The screen displays programmable periods for cooling and heating setpoints. The Humid-MiZer output activates based on humidity levels relative to the dehumidify target. Holiday settings utilize unoccupied setpoints for the entire day on designated holidays. The banner feature allows navigation through different screens and settings on the thermostat. Fan operation can be adjusted between auto and continuous modes depending on demand.
• Page 13: Software screen displays the current software's status. Backlight adjusts the backlight intensity in active and dormant modes. The blue active backlight wheel adjusts intensity from 10 to 100%, with 75% as the default. The purple dormant backlight wheel adjusts intensity from 0 to 25%, with 25% as the default. Sync time to server allows synchronization of time and date with the cloud server based on thermostat location. Screen timeout is the maximum time the backlight stays active when no activity is sensed, ranging from 5 to 30 seconds. Proximity sensing changes the screen backlighting from dormant to active when a person is sensed in front of the thermostat. Proximity sensitivity can be adjusted from high to low, affecting the detection range. Programming day parts refers to the number of periods per day for programming occupancy, set to 2 or 4. Wireless function enables or disables Wi-Fi for the thermostat, affecting various features and remote access.
• Page 14: Lockout Locks out unauthorized changes made on the touchscreen. All touch interaction is locked out without the unlock code. After 5 failed attempts, a notification is sent to the registered owner of the thermostat through Wi-Fi. More unlock attempts are blocked for 15 minutes. To set up a new PIN or change the current PIN, select the ENABLE button or the CHANGE PIN button. If the thermostat does not already have a PIN, the CHANGE PIN button cannot be used. Complete the following to field test the WIFIStat Thermostat's outputs. The first stage of HEATING, EM HEAT, COOLING, or FAN starts running and the text reads 1ST STAGE: 180 or FAN ON. You can use this screen to view software update history, fault history, and system events. The log includes startup, software update events, power cycle events, parameter out-of-range events, server connectivity events, non-volatile memory faults, and temperature faults. Pressing the STOP button turns off running equipment, and the STOP button is replaced with the START button. Displays the current status of thermostat outputs, timers, and stages. If the display does not turn on, check terminals R and C on the thermostat base and verify power is 24 Vac +/-10%. If the green LED is not flashing and you do have 24 Vac on terminals R and C, you need to replace the thermostat.
• Page 15: Recovering from a power outage involves the WIFIStat Thermostat storing critical information in non-volatile flash memory. The stored information includes installer settings, owner settings, program schedule, software information, dealer information, fault and system event information, and date and time. The device complies with Part 15 of the FCC Rules, which includes conditions regarding harmful interference. The WIFIStat Thermostat uses a capacitor to maintain date and time for approximately 2 hours during short power interruptions. If the power outage exceeds 2 hours, the date and time will update once the network connection is re-established. Any changes or modifications not approved by the manufacturer could void the user's authority to operate the equipment. To reset Wi-Fi access, specific steps must be followed directly on the thermostat. Access to the SYSTEM SETTINGS screens can only be done from the thermostat itself, not through the app or web. Disconnecting the Wi-Fi requires setting up the WIFIStat Thermostat using the mobile application. Compliance with BACnet requirements is the responsibility of BACnet International.
• Page 16: Appendix A: Bacnet points list Bacnet object ID Point name Point access Units Indoor space temperature Indoor space humidity Remote space temperature Outdoor temperature Supply air temperature Air filter hours left Override time remaining Occupied heat setpoint Occupied cool setpoint Unoccupied heat setpoint Unoccupied cool setpoint Dehumidification setpoint Humidification setpoint Screen timeout Active backlight Dormant backlight Max temperature hold time
• Page 17: Appendix A: Bacnet points list Bacnet object ID Point name Point access Read only Units Bacnet point name Dehumidifier out status Network general purpose outputs Wi-Fi time synchronization Proximity sensor enable Auto DST time shift BMS occupancy enable Humidity range high Humidity range low Outdoor sensor failure Not connected to server
• Page 18: Appendix A: Bacnet points list Bacnet object ID Point name Point access Units WIFI hardware fault Economizer fault Current mode status User mode Occupied fan mode Equipment type
• Page 19: Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.