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Table of Contents
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Summary of Contents for Smart temp SMT?770
- Page 1 Owner & User Manual SMT‐770 Chameleon Multifunction Thermostat Ver 3...
- Page 2 Your new air conditioning system thermostat has been built using the best components and design philosophy currently available. As a result, if properly installed your Smart Temp Chameleon thermostat will provide you with many years of trouble free comfort. The Chameleon has been designed and built by Smart Temp Australia P/L to be an attractive, highly reliable and an easy to use thermostat. By taking the time to read and understand these simple instructions you can take advantage of many of the capabilities that are offered in this premium product. ...
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Page 3: Table Of Contents
Table of Contents Introduction ......................... 5 Residential Programmable Mode ................. 6 On / Off and Mode Selection .................. 6 Setting the Fan Functions ................... 6 Setting the Clock ...................... 6 Programming Your 4 Daily Events ................ 7 Temperature Override .................... 1 2 To Set a Permanent Program Hold. ................ 1 3 To Review the Set Temperature. ................ 1 3 ... - Page 4 Switching Between Day and Night Set Points ............ 20 To Review the Set Temperature. ................ 21 Common Functions .................... 2 2 The Buttons Explained – ON/Off and Mode Selection etc ........ 22 Control Modes ...................... 24 Fan Functions Explained .................. 26 Auto Fan Mode .................... 26 Fan On Mode ....................... 26 Fan Speeds ....................... 27 Single Fan Speed .................... 27 Three Fan Speed.................... 27 LCD Explained ...................... 28 ModBus Communications. .................. 31 Remote Temperature Sensors. ................ 32 Troubleshooting ...................... 3 3 ...
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Page 5: Introduction
Introduction The Chameleon thermostat from Smart Temp is able to be used as a residential programmable thermostat, a commercial programmable thermostat or as a simple to use manual thermostat. Your installer will have set these modes to best suit your individual needs. ... -
Page 6: Residential Programmable Mode
Residential Programmable Mode On / Off and Mode Selection Tap the Mode button to cycle the Chameleon thermostat through the available modes: Heat, Cool, Auto Mode (Shown by Heat & Cool in the LCD), Emergency Heat (if fitted), and OFF. If the fan mode is set to “FAN ON”, when you select “OFF” mode the fan mode will automatically ... -
Page 7: Programming Your 4 Daily Events
To set the clock, tap the “PROG” button. The LCD will show the hours digit flashing. Use the up () or down () button to adjust the hours to the correct time (note the AM / PM symbol). Tap the “PROG” button again and now the minutes digits will flash. Adjust this value using the up () or down () button to show the correct minute. Tap the “PROG” button again and now the weekday flashes, again use the up () or down () button to set this value to the correct day of the week. Tap the “PROG” button again to exit the clock set function. Programming Your 4 Daily Events The Chameleon is an 7‐day programmable thermostat. For each day of the week you are able to have 4 timed set temperature changes or programmed events. For clarity these events are conveniently named “1”, “2”, “3” & “4”. ... - Page 8 You are permitted to have every event occur at a different time of the day and set a different heating and cooling temperature for each of the 4 daily events. You are also able to set a heating set point temperature between the heating turned OFF (no heating) and 45 degrees Celsius (113 F). You are able to set a cooling temperature between ...
- Page 9 To enter the program mode. Press and hold the “PROG” button for 3 seconds. The display will change to show the number “1” and the Day “Monday” flashing. Using the up () or down () buttons adjust the day to the day you wish to start programming or to the day you wish to edit an existing event or program. Tap the “PROG” button to advance to the next step, the LCD will show the digit “1” with the hour’s digit flashing. Using the up () or down () buttons adjust the hours to ...
- Page 10 Tap the “PROG” button again, now the word “Cool” (if enabled by the installer) and a temperature value is shown in the LCD, using the up () or down () buttons set the desired cooling temperature to be maintained for the number “1” event. NOTE: The heating set temperature must be at least 1 deg C (2f) lower than the cooling set temperature. If you set the heating or cooling set temperature closer than this minimum value, the Chameleon thermostat will automatically move the other set point away to maintain this minimum value. Tap the “PROG” button again and the Day previously selected will be shown along with the digit “2”, signifying the 2 daily event is now being programmed. The Hour digit will flash indicating that this value can now be adjusted with the up () or down () buttons. ...
- Page 11 You now have TWO options Option 1 – Continue programming as above. Simply continue to tap the “PROG” Button as you have been previously to advance to the next day, “Tuesday” in this example “1”, “2”, “3”, “4” events then Wednesday, Thursday etc, following the same simple steps previously explained…. OR Option 2 ‐ Copy Program To copy the values you have just programmed for that day to other days of the week, while the word “COPY” is displayed simply tap the up () or down () buttons to “TAG” each additional day you wish to copy the currently set days program to. When you have finished “Tagging” the days you desire press the “PROG” button to initiate the copy process. The word “Copy” will flash briefly to confirm the copy process and your current days values will be copied to the days selected. Normal programming steps ...
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Page 12: Temperature Override
Temperature Override To make your Chameleon thermostat even more capable and flexible, it has been provided with a temporary program override function. This permits you to temporarily change the current event set temperatures, just for today and only for a temporary period. Your installer will have selected either a fixed timed override period from 0.5 to 12 hours, or an override that lasts until the next programmed event change. ... -
Page 13: To Set A Permanent Program Hold
The LCD will now flash the current program indicator to remind you an override is in progress. Your new temporary temperature settings will be in use until the override time expires. To Set a Permanent Program Hold. Tap the “O/RIDE” button to override the Chameleon programmed ... -
Page 14: Commercial Programmable Mode
Commercial Programmable Mode On /Off and Mode Selection Tap the Mode button to cycle the Chameleon thermostat through the available modes, Heat, Cool, Auto mode (Shown by Heat & Cool in the LCD), Emergency Heat (if fitted), and OFF. If the fan mode is set to “FAN ON”, when you select “OFF” mode the fan mode will automatically change to “AUTO FAN” (Note – Not all modes may be active on your Chameleon). ... -
Page 15: Programming Your 2 Daily Events
To set the clock, tap the “PROG” button. The LCD will show the hours digit flashing. Use the up () or down () button to adjust the hours to the correct time (note the AM / PM symbol). Tap the “PROG” button again and now the minutes digits will flash. Adjust this value using the up () or down () button to show the correct minute. Tap the “PROG” button again and now the weekday flashes, again use the up () or down () button to set this value to the correct day of the week. Tap the “PROG” button again to exit the clock set function. Programming Your 2 Daily Events Commercial programming of the Chameleon has been designed to be an extremely simple and logical process. The Chameleon permits you to program a START time for the air conditioning system, then a Stop time for each day of the week. When the Chameleon ... - Page 16 Tap the “PROG” button to advance to the next step, The LCD will show the word “START” with the hour’s digit flashes. Using the up () or down () buttons adjust the hours value to the time you wish the building Air Conditioning system to start. Tap the “PROG” button again, now the minute’s digits flashes. ...
- Page 17 You now have TWO options Option 1 ‐ Continue programming as above. Simply continue to tap the “PROG” Button as you have been previously to advance to the next day, “Tuesday” in this example “START” then “STOP” times, then Wednesday, Thursday etc, following the same simple steps previously explained…. OR Option 2 ‐ Copy Program. To copy the values you have just set to other days of the week tap the up () or down () buttons to “TAG” each additional day you wish to copy the currently set days program to. When you have finished “Tagging” the days you desire press the “PROG” button to initiate the copy process. The word “Copy” will flash briefly to confirm the copy process and your current days values will be copied to the days selected. Normal programming will resume at the next day to be programmed. Note: Your thermostats programs may be controlled from a Building Management System (BMS) thereby overriding any program you may have entered into the thermostat as described above. If the BMS is controlling the thermostat the word “Start” or “Stop” will blink in the LCD to indicate the thermostat ...
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Page 18: After Hours Run Timer
After Hours Run Timer For convenience, the installer may have set the after‐hours run function. This function permits you to temporarily turn the Chameleon back on for an installer pre‐set period of time if the “Stop” program is running, at the conclusion of which the Chameleon will automatically turn back off again. To activate the after‐hours run timer, simply tap the “O/RIDE” button. (Or, the optional “After Hours” run button on the remote room temperature sensor.) The LCD will show the word “Override” flashing in the LCD. You can cancel any unexpired portion of the timer period ... -
Page 19: Manual Mode
Manual Mode On / Off and Mode Selection Tap the Mode button to cycle the Chameleon thermostat through the available modes, Heat, Cool, Auto mode (Shown by Heat & Cool in the LCD), Emergency Heat (if fitted), and OFF. If the fan mode is set to “FAN ON”, when you select “OFF” mode the fan mode will automatically change to “FAN AUTO” (Note – Not all modes may be active on your Chameleon). ... -
Page 20: Setting Your Desired Temperature
Tap the “PROG” button again and now the week day flashes, again use the up () or down () button to set this value to the correct day of the week. Tap the “PROG” button again to exit the clock set function or simply wait 30 seconds for the Chameleon to auto exit this menu. Your clock is now set. Setting Your Desired Temperature Simply press and hold the up () or down () buttons for 3 seconds. The Chameleon thermostat display will change to show the word “SET”, and the active set point for the current mode. (Heating or Cooling) as you hold the up () or down () buttons the current set point will change. ... -
Page 21: To Review The Set Temperature
This provides you with a quick and simple way to change between your day and night time set temperatures. Simply tap the “PROG” button to switch between Day & Night Modes. Set the Day and separate Night temperatures as described previously. To Review the Set Temperature. Simply tap the up () or down () button to first turn the LCD backlight then again to display the currently set temperature. 21 | P a g e ... -
Page 22: Common Functions
Common Functions The Buttons Explained – ON/Off and Mode Selection etc Mode Tap this button to cycle the Chameleon thermostat through the available modes, Heat only, Cool only, Auto season change over mode (Shown by both Heat and Cool on at the same time), Emergency Heat (if fitted), and OFF. When setting the Chameleon to OFF mode, the fan mode will automatically change to Fan Auto mode so the fan does not continue to run unexpectedly. (Note – Not all modes may be active on your Chameleon) O/RIDE (Override) Commercial Programmable Mode. This button initiates the afterhours run timer where, for an installer programmed period the Chameleon will replace the stop program temperatures and temporarily use the start program temperatures for a pre set period. ... - Page 23 Up () Use this button to increase the desired room temperature for the heating or cooling modes, or increase a “value” in programming modes. Also used to force override the pre‐programmed temperatures and temporarily replace them with a new higher set temperature. ...
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Page 24: Control Modes
Fan Single Speed Fan systems‐. Tap this button to cycle between Continuous Fan (Fan ON) and Auto Fan. Three Speed Fan systems – Tap this button to cycle between the 7 available fan modes being Low speed, Medium speed, High speed & Auto Fan speeds in Auto fan mode and then Low speed, Medium speed, High speed in Fan ON mode. If the Chameleon is OFF, tapping the “FAN” button will turn the fan ON or OFF as desired. If your system has 3 fan speeds these can also be selected by tapping the “FAN” button. ... - Page 25 E. Heat Mode ‐ The Chameleon thermostat will only use your emergency heating device to maintain your desired heating temperature. This method of heating can be quite expensive therefore it is not recommended to use emergency heat mode unless it is essential. When your air conditioning system is heating using emergency heat, the word “E.Heat” in the LCD will change to the word “E.Heating”. Cool Only Mode ‐ The Chameleon thermostat will turn on the Cooling when the room temperature rises above the Cool set point. In Cool only mode the Chameleon thermostat ...
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Page 26: Fan Functions Explained
Fan Functions Explained Auto Fan Mode If the user has selected Auto Fan mode with the “FAN” button the indoor fan will turn on when the heating or cooling turns on, and off again once the heating or cooling turns off. To conserve energy your fan may continue to run monetarily after the heating or cooling has stopped to extract all the warm or cool air still remaining in the air condition system and bring that conditioned air into the building. Fan On Mode Manual Thermostat Mode Your fan will run continuously. Programmable Thermostat mode By selecting “Fan On” or continuous fan mode the Chameleon thermostat indoor fan “may” operate continuously between the “Start” or number “1” programs and the “Stop” or number “4” programs and then turn on and off as required with heating and cooling outside of those programmed events. ... -
Page 27: Fan Speeds
Fan Speeds Single Fan Speed If your air conditioning system has one fan speed, your Chameleon thermostat will display the fan information shown on the picture to the left. The words “High”, “Med” or “Low” will be absent from the LCD. Tapping the “FAN” button with permit you to select either “Fan On mode” or “Auto Fan mode” as described above. Three Fan Speed If your air conditioning system is fitted with 3 fan speeds your Chameleon thermostat will display the fan ... -
Page 28: Lcd Explained
If Auto Fan Speed has been selected your Chameleon thermostat will automatically select the most appropriate fan speed based on the difference between the room and set temperatures. LCD Explained Note: Your Chameleon thermostat is capable of many advanced control capabilities, designed to both save energy and improve comfort levels. If any part of the Chameleon display is flashing during normal use, a safety, energy management or program delay/override is in progress. This is normal and is no cause for concern. 28 | P a g e ... - Page 29 Padlock Symbol. Whenever this symbol is show, a control limit has been reached a button or a function has been locked out. Spanner Symbol. If you see a spanner ICON flashing on your LCD, the installer has left your thermostat in “Commissioning mode” Although your thermostat will operate your heating and cooling system whilst in “commissioning mode”, all active safety and energy conservations delays have been disabled. It is therefore HIGHLY recommended that you contact your installer and request that the installer mode be disabled. ...
- Page 30 TEXT “Clean Filter”. This is a reminder to you to clean or replace your return air filter. Once you have cleaned or replaced your return air filter PRESS & HOLD both the MODE and FAN buttons together for 5 seconds. The LCD will blink and the filter counter will reset and the text “Clean Filter” will vanish. TEXT “RECO”. If the Chameleon Adaptive Recovery mode is active, the Chameleon will pre‐warm or pre‐cool your building to ensure your set temperatures are reached by your scheduled ...
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Page 31: Modbus Communications
Text “FAULT” The SMT‐770 has been “requested” to shut down the heating, cooling or Airconditioning system as a response from an external command. This request may have come from a sensor fitted to the air conditioning system, a sensor monitoring supply power or a multitude of interlocks. This fault would require a service call to your air conditioning service person. ... -
Page 32: Remote Temperature Sensors
Remote Temperature Sensors. Your thermostat is fitted with an accurate and reliable temperature sensor used to measure the room temperature. There may be occasions where the thermostat cannot be placed in an ideal location for accurate space temperature measurement; therefore the installer may have fitted “remote temperature sensor(s)”. These sensors will then report the space temperature from the remote temperature location. This temperature will be displayed on the LCD and used to control your heating and cooling system. If your thermostats is used in a commercial location, your room temperature sensor may be fitted with a button which activates the afterhours run function. 32 | P a g e ... -
Page 33: Troubleshooting
Troubleshooting Symptom Suspected Fault Suggested remedy Air from the wall cavity may be leaking into the Plug holes in wall with tape to prevent leaks Temperature display rear of the thermostat / sensor enclosure. seems inaccurate External heat or cool source such as lamps, Move lamps, vents or other sources of televisions or drafts from open doors affecting abnormal temperature away from sensors the accuracy of sensor. Sensor calibration may setting are incorrect Call Smart Temp service for information on calibrating the air temperature sensor ... - Page 34 Symptom Suspected Fault Suggested remedy E.Heating is shown on LCD Your installer has set your Chameleon to without manually This is not a fault. automatically use “Emergency / Auxiliary selecting it. Heating” if the outside air temperature is very low. Some buttons do not Key board lock is on. This is not a fault. Buttons or functions may appear to operate. See page 28 for more information on this be ...
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Page 35: Specifications
Specifications Input Voltage 24VAC 50/60 Htz +/‐ 15%. Current consumption 15mA Standby (Backlight off) 70mA All relays and backlight on. Relay rating 24VAC @ 1Amp maximum per relay. Operating Temperature 0‐50C (32 to 122F). Operating RH 0‐95% (non condensing). Storage Temperature 0‐65C (32 to 150F). Size 113 x 103 x 23mm. Display Size 74 x 55mm. Temperature Sensor(s) 10K NTC type 3. Memory type Non volatile – Settings do not require battery backup. Accuracy +/‐ 0.3deg C @ 25 C. (77F) Stage Delays Minimum temperature change + time method. Maximum stages controlled 2 cool & 3 heat (Installer selectable) Fan Speeds controlled 1 or 3 (Installer selectable) Timed upstage Delay 5~90 minutes (installer adjustable). Anti‐cycle Delay Off or 4 minutes. Maximum hourly cycles Unlimited, 30, 10 or 6. (Installer set) ... - Page 36 Display resolution 0.1 deg C (0.2F). Control Range Off to 45c (113F). Outside Air temp display range ‐8 ~ +60c (17 ~ 140F). Security Pin protected Installer menu with key lock. Heat & Cool set control limits. Lithium backup battery for clock functions. Back light Blue EL. Backlight life 3,000 hours to half brightness. Optimised Start/Stop method Time to start vs temp differential method ‐ updating. Communications Protocol Modbus RTU 4.8K 9.6K 19.2K No parity 1 data 1 stop. – Contact Smart Temp for objects list. Fan speeds Based on difference between room and set temp. Approvals FCC (Part 15) (pending), C‐tick. Battery type CR 1220 (Backs up clock only) Battery life > 5years (10 years Maximum) Warranty 3 years RTB. 36 | P a g e ...
- Page 37 Smart Temp Australia P/L 20/1488 Ferntree Gully Road Knoxfield Victoria Phone (03) 9763 0094 Fax (03) 9763 0098 www.thermostat.com.au © Smart Temp Australia – All rights reserved. Intellectual Rights apply 37 | P a g e ...