AMX ENV-VST-C Thermostat User Manual
Contents
1. 13 48 cm x 9 98 cm x 2 99 cm 5 29 oz 150 grams ENV VST C ViewStat Color Communicating Thermostat Installation Guide 93 2050 01 ENV VST TSO ViewStat Indoor Outdoor Temperature sensor FG2050 22 il Weather application FG3005 20 three year subscription Optional ENV VST TSF ViewStat Indoor Flush Mount Temperature Sensor Accessories FG2050 21 Installing a Remote Sensor Follow these steps to install the remote sensor Dimensions HWD Weight Included Accessories 1 Drill a 1 4 hole into the drywall where you want to install the sensor 2 Fish the cable that connects to the sensor through the 1 4 hole in the wall until the edge of the sensor where the cord meets the sensor is flush against the wall 3 Apply caulk drywall putty insulation or any other appropriate sealant to the hole in the wall around the sensor to seal the hole 4 Attach the connecting wires from the sensor to the S1 and S2 terminals on the thermostat Note You can use a maximum of 300 ft 91 44 m of 18 AWG wire for connecting the indoor outdoor remote sensor to the thermostat The thermostat automatically defaults to using the on board temperature sensor when you install it For information about activating the remote sensor consult the Activating the External Sensor section of the ViewStat Color Communciating Thermostat User Guide Mounting the Base to a Wall You should only mount the thermostat onto a sheetrock wall with t2. ATTENTION READ THIS FIRST For more detailed installation configuration programming and operating instructions refer to the ViewStat Color Communicating Thermostat Operation Reference Guide available on line at www amx com SA TRCGAAM IiE OFF DAN GW FF Cimagy Hight er Low TT FIG 1 ENV VST C ViewStat Color Communicating Thermostat Overview The ViewStat Color Communicating Thermostat FIG 1 provides the current temperature from an on board sensor a remote sensor or an average of the on board and remote sensors controls and displays humidity and displays the current outdoor temperature The thermostat displays this information on a 3 5 8 89 cm color display In addition the thermostat provides the current day s weather forecast along with a five day forecast when connected to an Internet enabled Master The forecast information is driven from AMX s i Weather application A three year subsciption to i Weather is included with purchase of the thermostat Specifications ViewStat Color Communicating Thermostat Specifications Control Voltage 24 VAC interfaces with a power supply through the RC terminals Warning Exceeding the control voltage may cause damage to the thermostat Switched 18 30 VAC 57 63 Hz Voltage Maximum 2 amps total at rated voltage through all outputs Operating 1 amps through any one output Current Maximum 2 0A Surge Current Internal Battery CR2032 for maintaini
3. Terminals L1 L4 connect to the AxLink cable The remaining terminals are used to control various types of heating and cooling systems You can use the thermostat with the following types of heating and cooling systems e Single Stage Furnace and Single Stage A C e Dual Stage Furnace and Dual Stage A C e Roof Top Unit with Dual Stage Heat and Dual Stage Cool e Boiler with A C with Separate Transformers e Single Stage Heat Pump e Two Stage Heat Pump e First Stage Radiant Floor Heat Second Stage Furnace One Stage of Cooling Communication and Equipment Terminal Wiring Definitions FIG 4 Single Stage Furnace and Single Stage A C wiring The thermostat automatically defaults to One Stage Furnace for the HVAC System setting when you install it For information about changing the HVAC FIG 3 displays the terminal layout for the thermostat E System setting consult the Changing the Type of HVAC System section in the L4 G3 1E c RH K JE 2 m B RC 12 ViewStat Color Communciating Thermostat User Guide 3 0 HUM ji 13 Dual Stage Furnace and Dual Stage A C DEI 44 aE f Fi au a 5 FIG 5 displays the thermostat wiring for a system with a dual stage furnace 6 Im s2 Yi ill 16 and A C 7 L1 YOM 17 Furnace AMX ENV VST C Thermostat o lami L3 c2 m19 pEr O 10 E20 J FIG 3 Terminal Layout The following table lists the communication and equipment terminal wiring definitions Communication and Equip
4. he anchors and screws provided with the unit There are four screw holes located on the base of the thermostat No tools are required to disassemble the thermostat simply use your hands to pull the front panel off of the base 1 Place the base over the wire hole opening in the wall Level the base leveling required for appearance only and mark the screw hole mounting locations 2 Using the supplied wall anchors drill 1 4 hole in the center of the marked locations and tap the wall anchors into the holes If using the supplied screws only drill a 3 32 hole in the center of the marked locations Note Minimize the wire entry hole size and seal Drafts from inside the wall could affect temperature readings 3 Fasten the base to the wall with the supplied screws 4 Seal the wire entry with caulk drywall putty or insulation Wiring the Thermostat Note A qualified HVAC technician should perform these steps to ensure proper termination 1 Make sure the HVAC system power is off 2 Strip 1 4 0 63 cm of insulation from each wire you are using 3 Secure the wires into the terminals on the base according to the appropriate wiring diagram Use color coding practices i e white wire to W terminal whenever possible 4 Check each wire to ensure it is securely fastened not broken and any exposed wires are not touching each other Wiring for AxLink Follow these steps to connect the wiring into a captive wire connect
5. ment Terminal Wiring Definitions et od Re O terminal you should install a jumper from RH to RC i G1 terminal On a multi speed fan G1 is the lowest speed o2 s 2nd stage heat Y1 1st stage compressor For full warranty information refer to the AMX Instruction Manual s associated with your Product s Air Conditioner 1 Stage Coal 2 Stage Cool FIG 5 Dual Stage Furnace and Dual Stage A C wiring For wiring diagrams of other types of heating and cooling systems consult the ViewStat Color Communicating Thermostat Operation Reference Guide 2 ill a om om Ye 93 2050 01 REV C 10 08 2008 AMX All rights reserved AMX and the AMX logo are registered trademarks of AMX AMX reserves the right to alter specifications without notice at any time 3000 RESEARCH DRIVE RICHARDSON TX 75082 e 800 222 0193 e fax 469 624 7153 technical support 800 932 6993 www amx com ENERGY STAR
6. ng real time clock settings during a power loss Control 1 0 F 0 56 C Accuracy 3 relative humidity Temperature Maximum displayable indoor temperature 40 99 F Range 5 37 C Maximum displayable outdoor temperature 40 120 F 40 49 C Operating 32 122 F 0 50 C Range Front Panel Components Main LCD 3 5 8 89 cm color QVGA 320 x 240 Thin Film Transistor Liquid display Crystal Display TFT LCD The Navigation buttons are used to change various parameters on the thermostat including the temperature setpoints These buttons are located beneath the display Navigation buttons Mode Select button The Mode Select button is used to navigate through the various thermostat screens including the weather screens This button is located beneath the display Installation Guide ENV VST C ViewStat Color Communicating Thermostat ViewStat Color Communicating Thermostat Specifications Cont Circuit Board Components Communication Terminals with captive wire connectors that connects to the and HVAC thermostat HVAC equipment control system remote sensors Equipment and power supply connectors Material White plastic and removable front panel Panel can be painted to match wall decor Warning If you paint the panel do not paint over the exposed thermistor Doing so can cause the external temperature sensor to work improperly 5 31 x 3 93 x 1 18
7. or 1 Strip 1 4 inch off the wire insulation for all four wires 2 Tin 2 3 of the exposed wire 3 Insert each wire into the appropriate captive wire connector up to the insulation 4 Tighten the captive screws to secure the fit in the connector Use 18 AWG wire to connect the AxLink wiring from the thermostat to the connector on the AxLink device as shown in FIG 2 PWR Li l AXP L2 l AxLink AXM 3 ViewStat GND L4 FIG 2 AxLink wiring Note The ViewStat Color Communicating Thermostat interfaces with a 24 VAC power supply from the heating cooling unit through its RC terminal You should not connect the power wiring from the AxLink device to the thermostat with the intent of using the AxLink device to provide power to the thermostat The L1 terminal on the thermostat can accept the AxLink 12VDC wire and you can connect the wire to the terminal if you want to assure there are no loose wires inside the thermostat but you should not power the thermostat by Communication and Equipment Terminal Wiring Definitions Cont Single Stage Furnace and Single Stage A C FIG 4 displays the thermostat wiring for a system with a single stage furnace and A C Furnace AMX ENY VS7 C Thanmoastal running a jumper to the RC pin Wiring Diagrams ViewStat Color Communicating Thermostats are equipped with terminals RC RH C Y W G O B S1 S2 L1 L2 L3 and L4 You can use terminals S1 and S2 to accomodate a remote temperature sensor
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