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ViewStat Installation and Wiring

36

ViewStat Communicating Thermostat

Summary of Contents for ViewStat

Page 1: ...instruction manual HVAC Controls ViewStat Communicating Thermostat...

Page 2: ...liability applies whether damages are sought or a claim is made under this warranty or as a tort claim including negligence and strict product liability a contract claim or any other claim This limita...

Page 3: ...ing the ViewStat to AMX Control Systems 13 Connecting to an Axcess Control System via AXC 232 AXB EM232 or Axcent3 PRO 15 Connecting to an Axcess Master Controller via the RS232 422 485 DB 9 Port 16 C...

Page 4: ...ules 37 Choosing a mounting location 37 Single Support Module Installation 37 Multiple Support Module Installation 39 Setting the Support Module DIP Switches 40 DIP switches 1 and 2 Address 1 4 40 Dip...

Page 5: ...roll Set up buttons 63 Mode button 63 Adjust buttons 64 Fan button 64 Enter button 64 Main display 64 Operating The Thermostat 65 Selecting the Mode 65 Setting temperatures 66 Fan operation 66 Backlig...

Page 6: ...iv ViewStat Communicating Thermostat Table of Contents...

Page 7: ...r help with additional specific control wiring scenarios The ViewStat is designed to work with VST TTM Temperature and VST TRH Temperature and Humidity support modules and remote sensors If there are...

Page 8: ...d Temporary Messages Permanent Messages are those that scroll continually during thermostat operation Temporary flashing Messages are intended to catch your eye and must be reset to be removed from th...

Page 9: ...tat Specifications Cont Circuit Board Components Communication and HVAC Equipment connectors Terminals with captive wire connectors that connects the Thermostat HVAC equipment control system remote se...

Page 10: ...63 mm x 89 mm x 22 mm Max relative humidity 90 non condensing Temperature Accuracy Comfort Range 60 F 80 F 1 F Control Range 40 F 100 F 2 F Operating Range 40 F 185 F 3 F Maximum Display Range 40 F 18...

Page 11: ...e Furnace AC 5 FIG 18 on page 29 Two Stage Furnace Two Stage AC 7 FIG 19 on page 30 Roof Top Unit Two Stage Heat Two Stage Cool 7 FIG 20 on page 31 Boiler with AC Two Transformers 5 FIG 21 on page 32...

Page 12: ...Product Information 6 ViewStat Communicating Thermostat...

Page 13: ...72 cm from any outside wall Approximately 5 feet 1 52 m above the floor Check with local building codes for height requirements in commercial applications DO NOT locate the thermostat Behind doors in...

Page 14: ...the Base No tools are required to disassemble the thermostat just use your hands to pull the front panel off of the base FIG 2 While holding the base of the thermostat apply pressure to the base of t...

Page 15: ...uired line up pins on circuit board with the corresponding terminal blocks Use your hands to push the front panel securely to the mounted base FIG 4 Setting the DIP Switch DIP Switch Settings Applicat...

Page 16: ...ceplate from the base of the ViewStat 2 Pull the stripped tinned wires through the cutout in the center of the base FIG 5 3 Connect the communications wiring a Blue to B b Orange to B c Red White to A...

Page 17: ...RS422 interface to the control system and eight RS422 interfaces for the thermostats Since the VST DIST provides an RS422 interface to the control system a MiniVerter VST MVRT is not required for com...

Page 18: ...ches A Allows Transmit Communications B Allows Received Communications PWR Turns power to thermostat on off LEDs light when communications are transmitted A or received B ADDRESS ADDRESS ADDRESS ADDRE...

Page 19: ...s 4 Seal wire entry using caulk drywall putty or insulation Connecting the ViewStat to AMX Control Systems When a Mini Verter is used the Viewstat has a single RJ 45 jack on the rear panel and uses IC...

Page 20: ...Brown Receive 8 Brown Receive NetLinx RJ 45 Pinout Information EIA TIA 568 B Pin Wire Color Polarity Function 1 Orange White Transmit 2 Orange Transmit 3 Green White Mic 4 Blue Ground 5 White Blue 12...

Page 21: ...e pinout information below FIG 8 shows the wiring configuration for Axcess systems Axcess System Card Edge Pinouts Pin Signal Function 1 GND Ground RS 232 2 RX Receive data RS 232 3 TX Transmit data R...

Page 22: ...sing the DB 9 PROGRAM port DB 9 Pinouts Wiring and Baud Configurations Pin Signal Function RS 232 RS 422 RS 485 1 RX Receive data X X strap to pin 9 2 RXD Receive data X 3 TXD Transmit data X 4 TX Tra...

Page 23: ...the DB 9 PROGRAM port DB 9 Pinouts Wiring and Baud Configurations Pin Signal Function RS 232 RS 422 RS 485 1 RX Receive data X X strap to pin 9 2 RXD Receive data X 3 TXD Transmit data X 4 TX Transmi...

Page 24: ...2 RXD1 Receive data X 3 TXD1 Transmit data X 4 CTS1 Clear to send X 5 RTS1 Request to send X 6 TX1 Transmit data X X strap to pin 8 7 TX1 Transmit data X X strap to pin 9 8 RX1 Receive data X X strap...

Page 25: ...e white wire for transmit will result in increased crosswalk and may result in bus failure or noise on the intercom Installing the Cat5 Suppression Ferrite Before connecting the ICSNet cable install t...

Page 26: ...nd MCU is 1 000 ft 304 8 m To connect multiple ViewStats to a Landmark system use a Landmark Hub PLH RPT to add additional PhastLink ports to the system connect the RJ 45 jack on the ViewStat to an av...

Page 27: ...f Top Unit Two Stage Heat Two Stage Cool Refer to FIG 20 on page 31 Boiler with AC Two Transformers Refer to FIG 21 on page 32 Single Stage Heat Pump Refer to FIG 22 on page 33 Two Stage Heat Pump Ref...

Page 28: ...ding where possible a FIG 14 shows a typical heat cool wiring schematic Communication and Equipment Terminal Wiring Definitions Cont Equipment Terminal Cont DEH Y1 1st stage Cooling non heat pump or 1...

Page 29: ...Y1 W2 Y2 1ST STAGE COOL 2ND STAGE COOL L1 L2 120 VAC 24 VAC 1ST STG COOL 2ND STG COOL MULTI STAGE A C Y1 C Y2 CAUTION ENSURE HVAC SYSTEM POWER IS OFF BEFORE WIRING USE 18 20 GA THERMOSTAT CABLE NUMBE...

Page 30: ...OR INTERNAL SCHEMATIC THERMOSTAT CHECK OUT PROCEDURES AND OTHER HVAC WIRING DETAILS FAN RELAY 2ND STAGE AUX HEAT 1ST STAGE AUX HEAT R INDOOR BLOWER HEAT UNIT C G W1 W2 L1 L2 120 VAC 24 VAC Y1 O B W1 L...

Page 31: ...e thermostat is first turned on all of the graphics of the main LCD are momentarily displayed this will look like FIG 16 Check Out Procedure Use the Check Out procedure below to determine if the therm...

Page 32: ...nal HVAC Set Up Features There are a number of HVAC features that can be configured for the particular application These include temperature control options display options and high low balance points...

Page 33: ...of sub menu s that allow you to customize the ViewStat in various ways The Set Up and Configuration section on page 45 outlines the set up features The following steps will guide you only through Comm...

Page 34: ...will be equal to the total number of thermostats on the network unless one or more addresses are skipped see step 5 8 Press Enter to set the baud rate The ViewStat must be set for 9600 baud to commun...

Page 35: ...tallation and Wiring 29 ViewStat Communicating Thermostat Wiring Diagrams Single stage furnace and AC configuration FIG 18 Single stage furnace and AC configuration ViewStat from MiniVerter Black comm...

Page 36: ...o stage furnace and two stage AC configuration FIG 19 Two stage furnace and two stage AC configuration ViewStat from MiniVerter Black common Red power IMPORTANT The B terminal is for reversing valve h...

Page 37: ...wo stage heat and two stage cool configuration FIG 20 Roof top unit two stage heat and two stage cool configuration ViewStat from MiniVerter Black common Red power IMPORTANT The B terminal is for reve...

Page 38: ...Boiler with AC two transformers configuration FIG 21 Boiler with AC two transformers configuration ViewStat from MiniVerter Black common Red power IMPORTANT The B terminal is for reversing valve heat...

Page 39: ...hermostat Single stage heat pump configuration FIG 22 Single stage heat pump configuration ViewStat from MiniVerter Black common Red power IMPORTANT The B terminal is for reversing valve heat DO NOT c...

Page 40: ...g Thermostat Two stage heat pump configuration FIG 23 Two stage heat pump configuration ViewStat from MiniVerter Black common Red power IMPORTANT The B terminal is for reversing valve heat DO NOT conn...

Page 41: ...age furnace one stage of cooling configuration FIG 24 First stage radiant floor heat second stage furnace one stage of cooling configuration ViewStat from MiniVerter Black common Red power IMPORTANT T...

Page 42: ...ViewStat Installation and Wiring 36 ViewStat Communicating Thermostat...

Page 43: ...odules Choosing a mounting location In choosing a mounting location for the support module s locate an interior wall surface in an area free from drafts The maximum distance from the thermostat is 100...

Page 44: ...tch holds the board properly 7 Strip inch of insulation from the four wires at the support module Install the wires in the terminals labeled RSR RSC RSB and RSA One twisted pair of wires should be use...

Page 45: ...IP switches as described in the following Setting the Support Module DIP Switches section 4 Replace the thermostat on the sub base Check for proper operation of each sensor DIP switches must be set pr...

Page 46: ...ule must have its own address 1 4 DIP switch 3 Temperature Sensor 1 Each support module has two sensors Sensor 1 and Sensor 2 Determine whether you want the Sensor 1 input to monitor or control temper...

Page 47: ...o indicate humidity Up to 4 support modules can be daisy chained together All humidity sensors that are set to Control mode will be averaged and the average humidity will be displayed on the thermosta...

Page 48: ...y setting the DIP switch 3 to the off position and the support module address to number 1 The high and low balance points are set at the thermostat Humidity Control VST TRH only In order to set your t...

Page 49: ...ge the thermostat and transformer or blow a fuse in the equipment Also verify that all support modules have a unique address Thermostat displays very high temperature or humidity Ensure that DIP switc...

Page 50: ...Support Module Installation and Wiring 44 ViewStat Communicating Thermostat...

Page 51: ...in Menu items by pressing the Enter button will enter a corresponding Sub Menu The Scroll Up and Scroll Down buttons are used to move between menu items or change adjustable values The Enter button is...

Page 52: ...lly or completely disables the buttons of the thermostat For example the MODE and FAN status can be set and then locked so the buttons will not allow those settings to be changed Additionally this can...

Page 53: ...sword More Security Set Up More Remove Password Next ConfirmCode change accept EXIT Back Enter Lockout Code after 4th digit entered after 4th digit entered The master key password is 7777 FIG 36 Maste...

Page 54: ...when the ambient light is below a preset value When only when needed is selected the user can select from two levels of ambient light Finally it can be disabled Temperature Control Options OFFSET All...

Page 55: ...scroll through three messages showing the status of the mode fan and equipment output A fourth date and time can also be displayed in the scroll list FIG 37 Backlighting set up Balance Point Options...

Page 56: ...ay will by default scroll three messages showing the status of the mode fan and equipment outputs A fourth date and time can also be displayed in the scroll list FIG 38 Display set up Show Temp Setpts...

Page 57: ...rter devices have the same device number and are on the bus at the same time an initialization problem can occur where all devices obtain the same new device identification number This is different fr...

Page 58: ...hat doesn t display the temperature in the main window When acting as a humidity sensor the temperature can be retrieved through the control interface only The remote temperature is displayed in minor...

Page 59: ...an keep the temperature within these points at all times by setting the setpoint values For example to maintain a temperature of 68 72 degrees the heat setpoint would be set to 68 the cool setpoint wo...

Page 60: ...set point by one percent Decrease dehumidify set point by one percent 10 90 dehumidify set point in percent Example T 6 DEHUMIDIFY 70 T stat DEHUMIDIFY Query for current dehumidify set point Parameter...

Page 61: ...val Set humidify mode Parameters tstat id of thermostat zone val OFF disable no humidity control HUMID enter humidify mode DEHUM enter dehumidify mode AUTO automatically control humidity based on hum...

Page 62: ...set point Parameter tstat id of thermostat zone Example T 1 HUMIDIFY T tstat HUM Query for current inside humidity Parameter tstat id of thermostat zone Example T 14 HUM T tstat ID Get thermostat iden...

Page 63: ...stat control heat and cool based on set points T toggle HVAC mode Example T 6 MODE AUTO T stat MODE Query for current HVAC mode Parameter tstat id of thermostat zone Example T 1 MODE T tstat MSG text...

Page 64: ...tat id of thermostat zone line 1 4 message number to be set val string of text Example T 8 MSG 1 Hello World T tstat TXT line Read text to be displayed on thermostat Parameters tstat id of thermostat...

Page 65: ...point F Example T 1 COOL 76 T stat DATE val Reports thermostat date Parameter val MMDDYY 062102 June 21 2002 T tstat DEHUMIDIFY val Reports current dehumidify set point Parameters tstat id of thermost...

Page 66: ...id of thermostat zone val ON thermostat in hold mode OFF thermostat no in hold mode Example T 2 HOLD ON T tstat HUM val Reports current inside humidity Parameters tstat id of thermostat zone val 0 10...

Page 67: ...ity level Example T 8 OUTHUM 68 T tstat OUTTEMP val Reports current outside temperature Parameters tstat id of thermostat zone val current outside temperature Example T 2 OUTTEMP 84 T stat PMES num va...

Page 68: ...eedback Cont String Description SCALE val Reports current temperature scale Parameter val C Celsius F Fahrenheit default Example SCALE F USEDEBUG val Displays debug state Parameter data 1 enabled 0 di...

Page 69: ...d must be reset to be removed from the display Thermostats are shipped with default permanent status messages i e mode status fan status equipment status Scroll Set up buttons The Scroll Set Up button...

Page 70: ...ns have been locked out and the thermostat settings can not be changed at the thermostat ROOM TEMPERATURE Shows the current room temperature The temperature can be displayed in F or C This would show...

Page 71: ...ble describes each of the modes FIG 42 Mode messages OFF Select the OFF mode to prevent the heating and cooling equipment from operating COOL COOL appears on the display and only the cooling equipment...

Page 72: ...r continually FAN ON or only during Heating and Cooling calls Press the Fan button to toggle between these two options FAN ON is recommended for media electronic air cleaners ventilating equipment and...

Page 73: ...to the previous settings The thermostat is equipped with a continuous memory feature which does not require a battery Cleaning the Thermostat If the surface of the thermostat becomes dirty it can be c...

Page 74: ...Operating the Thermostat 68 ViewStat Communicating Thermostat...

Page 75: ...Operating the Thermostat 69 ViewStat Communicating Thermostat...

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