Daikin DT4272 Troubleshooting guide

High Resolution

TouchScreen Digital Thermostat

for

Residential Use

Now with

Wi-Fi

On Board

Owner’s

Manual &

Installation

Guide

model DT4272 RESIDENTIAL

FCC Compliance Statement

This equipment has been tested and found to comply with the limits for an

intentional radiator, pursuant to Part 15, subpart C of the FCC rules.These limits

are designed to provide reasonable protection against harmful interference

in a residential installation.This equipment generates, uses and can radiate

radio frequency energy and, if not installed and used in accordance with

the instructions, may cause harmful interference in radio communications.

However, there is no guarantee that the interference will not occur in a particular

installation. If this equipment does cause harmful interference to radio or

television reception, which can be determined by turning the equipment off and

on, the user is encouraged to try to correct the interference by one or more of the

following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that of the

receiver.

• Consult the dealer or an experienced radio orTV technician for help.

Notice: Only peripherals complying with FCC limits may be attached to this

equipment. Operation with noncompliant peripherals or peripherals not

recommended by Daikin, is likely to result in interference to radio and TV

reception. Changes or modiﬁcations to the product, not expressly approved by

Daikin could void the user’s authority to operate the equipment.

FCC - INDOOR Mobile Radio Information:

To comply with FCC/IC RF exposure limits for general population / uncontrolled

exposure, the antenna(s) used for this transmitter must be installed to provide a

separation distance of at least 20 cm from all persons and must not be co-located

or operating in conjunction with any other antenna or transmitter.

This Device complies with Industry Canada License-exempt RSS standard(s).

Operation is subject to the following two conditions: 1) this device may not

cause interference, and 2) this device must accept any interference, including

interference that may cause undesired operation of the device.

Follow the Installation Instructions before proceeding. Set the

thermostat mode to “OFF” prior to changing settings in setup

or restoring Factory Defaults.

CAUTION

This color touchscreen has the ability to receive updates to its ﬁrmware.

Periodically ﬁrmware updates are released by the manufacturer to add features

and/or performance enhancements.This manual was produced reﬂecting the

most current ﬁrmware/feature set at the time of publication, ﬁrmware rev. 4.04.

Firmware releases after rev. 4.04 may not be adequately depicted in this manual.

Please refer to the appropriate website or contact your place of purchase to learn

about changes to the thermostat after ﬁrmware release 4.04.

Under Industry Canada regulations, this radio transmitter may only operate using

an antenna of a type and maximum (or lesser) gain approved for the transmitter

by Industry Canada.To reduce potential radio interference to other users, the

antenna type and its gain should be so chosen that the equivalent isotropically

radiated power (e.i.r.p.) is not more than that necessary for successful

communication.

Cet appareil est conforme avec Industrie Canada, exempts de licence standard

RSS(s). Son fonctionnement est soumis aux deux conditions suivantes: 1) ce

dispositif ne doit pas causer d’interférences, et 2) ce dispositif doit accepter

toute interférence, y compris les interférences qui peuvent causer un mauvais

fonctionnement de l’appareil.

En vertu des règlements d’Industrie Canada, cet émetteur de radio ne peut

fonctionner en utilisant une antenne d’un type et maximale (ou moins) Gain

approuvé pour l’émetteur par Industrie Canada. Pour réduire les interférences

radio potentielles aux autres utilisateurs , le type d’antenne et son gain doivent

être choisis aﬁn que la puissance isotrope rayonnée équivalente (PIRE) ne est pas

plus de ce qui est nécessaire pour une communication réussie.

We, Daikin, declare under our sole responsibility that the device to which

this declaration relates: Complies with Part 15 of the FCC Rules. Operation is

subject to the following two conditions: (1) this device may not cause harmful

interference, and (2) this device must accept any interference received, including

interference that may cause undesired operation.

MUH-SKYPORT2

iii

Glossary of Terms

Auto-Changeover: A mode in which the thermostat will turn on the

heating or cooling based on room temperature demand.

Cool Setpoint:The warmest temperature that the space should rise

to before cooling is turned on (without regard to deadband).

Deadband:The number of degrees the thermostat will wait, once a

setpoint has been reached, before energizing heating or cooling.

Differential:The forced temperature difference between the heat

setpoint and the cool setpoint in Auto Mode.

Heat Setpoint:The coolest temperature that the space should drop

to before heating is turned on (without regard to deadband).

Icon: The word or symbol that appears on the thermostat display.

Mode: The current operating condition of the thermostat

(i.e. Off, Heat, Cool, Auto).

Non-Programmable Thermostat: A thermostat that does not have

the capability of running Time Period Programming.

Programmable Thermostat: A thermostat that has the capability of

running Time Period Programming.

Temperature Swing: Same as Deadband.

Time Period Programming: A program that allows the thermostat

to automatically adjust the heat setpoint and/or the cool setpoint

based on the time of the day. Same as Schedule.

Table of Contents

GET TO KNOW YOUR THERMOSTAT

Home Screen ........................................................................................ 1

Menu Screens....................................................................................... 1

Dropdown Dashboard ........................................................................... 2

Care and Use of Your Thermostat ......................................................... 3

QUICK START

Selecting Your Desired Temperature and Mode.................................... 4

Time Period Schedule........................................................................... 4

Using the Fan Button ............................................................................ 4

Setting the Time & Date........................................................................ 5

Setting the Time.............................................................................. 6

Setting the Date .............................................................................. 7

Daylight Savings Setup................................................................... 7

Connecting to Wi-Fi......................................................................... 8

WiFi Set up - Create a Skyport Account......................................... 10

MAIN MENU BUTTONS

SCHEDULE............................................................................................ 11

View My Schedule......................................................................... 12

Edit My Schedule .......................................................................... 12

SMART FAN.......................................................................................... 14

Smart Fan On/Off .......................................................................... 15

Smart Fan Minimum Runtime....................................................... 15

Start/Stop Times ........................................................................... 15

Days to allow Smart Fan operation............................................... 15

SCREENSAVER ..................................................................................... 16

Screensaver On/Off ....................................................................... 17

ScreensaverSetup ......................................................................... 17

Screensaver Preview..................................................................... 17

ALERTS ................................................................................................ 18

View Current Alerts........................................................................ 19

Reset Alerts ................................................................................... 19

Set/Edit Reminders........................................................................ 19

Service Information (Who To Call For Service) .............................. 19

Table of Contents

DISPLAY ............................................................................................ 20

Active Brightness ...................................................................... 21

Idle Brightness .......................................................................... 21

Night Dimmer ............................................................................ 21

Maintenance.............................................................................. 22

PREFERENCES .................................................................................. 23

User Interface Themes .............................................................. 24

Custom Wallpaper ..................................................................... 24

Heat/Cool Indicator.................................................................... 24

Sound Options ........................................................................... 24

VACATION/AWAY................................................................................ 25

Clear Vacation Schedule............................................................ 26

Set Vacation Schedule............................................................... 26

Schedule.................................................................................... 27

Modes & Setpoints .................................................................... 27

SECURITY.......................................................................................... 28

Auto Screenlock ........................................................................ 29

Setpoint Limits .......................................................................... 29

INFORMATION ................................................................................... 30

My Thermostat .......................................................................... 31

View Runtime Graphs................................................................ 31

Who to Call for Service.............................................................. 31

SETTINGS.......................................................................................... 32

Thermostat Name...................................................................... 36

Available Modes ........................................................................ 36

SD Card (Import and Export)...................................................... 36

Table of Contents

GENERAL SETUP ................................................................................36

Units (F or C)..................................................................................36

Language ......................................................................................37

Smart Recovery On/Off..................................................................37

Simple Thermostat On/Off.............................................................37

AUTOMATED DEMAND RESPONSE .....................................................38

INSTALLATION SETTINGS ...................................................................52

Heat & Cool Stages........................................................................52

Heat & Cool Stages....................................................................52

Compressor Stages...................................................................52

Aux Heat Stages ........................................................................52

Timers & Deadbands .....................................................................52

Free Cooling ..................................................................................54

Heat Pump Settings.......................................................................55

Heat Pump Lockout - Enabled/Disabled ...................................55

Heat Pump Lockout Outdoor Temp ...........................................55

Aux Heat Lockout Enabled/Disabled.........................................55

Aux Heat Lockout Temp ............................................................55

Dual Fuel Settings.....................................................................55

Dual Fuel On/Off.................................................................55

Changeover With Outdoor Temp On/Off..............................55

Adjust Balance Point..........................................................55

AUX Output Settings......................................................................56

Fan Off Delay.................................................................................57

Sensor Settings.............................................................................57

Control Sensor .........................................................................57

Wired Sensor ...........................................................................57

Calibrate Sensors.....................................................................57

Test Outputs ..................................................................................57

Dealer Information ........................................................................58

Upgrade Firmware ........................................................................58

Delete Custom Images ..................................................................58

Calibrate Clock ..............................................................................58

vii

Table of Contents

Reset to Factory Default Settings .......................................................58

Restart Thermostat .............................................................................58

WI-FI ..................................................................................................59

Status..............................................................................................59

Setup ..............................................................................................59

Local API .........................................................................................61

SKYPORT.............................................................................................64

Account..........................................................................................64

EMERGENCY HEAT ..............................................................................65

TOUCHSCREEN ASSISTANT................................................................66

Installing the TouchScreen Assistant Software ..................................66

Uploading Photos ...............................................................................66

INSTALLATION INSTRUCTIONS..........................................................68

Remove & Replace the Old Thermostat ..............................................68

Wire Connections................................................................................69

Determining Your Existing Wiring and Equipment ..............................70

Making 4 Wires Work When 5 Wires Are Required..............................72

Making 5 Wires Work When 6 Wires Are Required..............................73

The Thermostat Backplate..................................................................74

Explanation Of the Thermostat Dip Switches......................................75

Sample Wiring Diagrams ....................................................................76

TROUBLESHOOTING.............................................................................79

INDEX .....................................................................................................80

WARRANTY ............................................................................................84

Get To Know Your Thermostat

Home Screen

Sub Menu Screen

Home Button

Sub Menu

Buttons

Scrolling

Buttons

Main Menu Screen

Scrolling

Buttons

Back

Button

Buttons

Indicates Options

Available

Backlit Display

Date &Time

Fan Button

Home/Away Button

OutdoorTe mperature

Cooler

Button

Warmer

Button

SD Card

Slot

Button

Mode Buttons

(If optional accessory is used

or connected to Skyport)

Connectivity Symbol

Drop Down

Sensor Button

Not connected

to Wi-Fi

Connected to local

access point w/IP

address without

Skyport enabled

Connected to local

access point w/IP

address, but not yet

connected to Skyport

Connected to Skyport

Connectivity Symbol Table

Get To Know Your Thermostat

Drop Down

Dashboard Button

Weather

Display

Outdoor

Temp

Room

Temp

Wi-Fi

Connection

Icon

Dropdown Dashboard

(The contents of your Dashboard may vary)

Press the HOME button to

return to the Home Screen

Not connected

to Wi-Fi

Connected to local

access point w/IP

address without

Skyport enabled

Connected to local

access point w/IP

address, but not yet

connected to Skyport

Connected to Skyport

Connectivity Symbol Table

Dropdown Dashboard

The Dropdown Dashboard displays temperature, humidity, and other

readings. It will also show the high and low readings of the day.

Table of contents

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