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Operation/Reference Guide Product Category ViewStat Communicating Thermostat Last Rev ised: 5/16/ 2008.
AMX Limited Warr anty and Disclaimer AMX Corporation warrants its products to be free of def ect s in material and workmanship under normal use for three (3) years from the date of purchase from AMX C.
Table of Contents i V iewStat Communicating Thermostat Table of Contents Product I nformation ....... .......... ............ ......... ........ ......... ........ ......... ............ ....... 1 Introducti on ........................ ...............
ii ViewStat Communicating Thermostat Table of Contents Address the Therm ostats and Se t Highes t Address ..... .................... ....................... 24 Wiring D iagrams ......... ............................. .............................. ...
Table of Contents iii V iewStat Communicating Thermostat Operatin g the Thermostat ........ ......... ........ ............ ......... ............ .......... ....... ..... 57 Front Panel Co mponents .... .................... ..........................
iv ViewStat Communicating Thermostat Table of Contents.
Produc t Info rmation 1 ViewStat Communicating Thermostat Product Information Introduction The V iewStat Communica ting Thermostat (FIG . 1) operates si milarly to a conventional thermostat but has the unique capability o f being controlle d, either locally or remotely from a NetLinx or L andmark control system.
Product I nformation 2 ViewStat Communicating Thermostat System Components The comp onents in a complete V ie wStat system (including option al accessor ie s) are listed below: ViewStat Specifications.
Produc t Info rmation 3 ViewStat Communicating Thermostat Support Module Specifications There are two type s of support module s a vailab le for the V iewStat: V S T- T T M Te m p e r a t u r e M o d u l e : The VST -TTM support modu le of fers versatility in climate contro l.
Product I nformation 4 ViewStat Communicating Thermostat The V iewSta t support s up to four Suppor t Modu les, and ca n displ ay any one of the f ollowing: The remote temper ature on support mo dule ad dress 1 if it s mode is set to "Control".
Produc t Info rmation 5 ViewStat Communicating Thermostat HVAC System Pre-Ins t allation Check List Before ge tting sta rted, de termine w hat type of heating sy stem is/wi ll be inst a lled i n the h o use. Th e n us e the follo wing table to determine if the proper numbers of wires are av ailable, depe nding on the HV AC System type.
Product I nformation 6 ViewStat Communicating Thermostat.
ViewStat Installation and Wiring 7 ViewStat Communicating Thermostat ViewStat Installation and Wiring This section co vers the installation, wiring and check out of a V ie wStat Communicatin g Thermostat Syst e m.
ViewStat Installation and Wiring 8 ViewStat Communicating Thermostat Removing the Faceplate from the Base No tools are required to disassemble the thermostat – just use your ha nds to pull the front panel of f of the base (FIG. 2). While ho lding the base of the thermostat, a pply pressure to the base o f the latch with your thumb ( FIG.
ViewStat Installation and Wiring 9 ViewStat Communicating Thermostat Setting the DIP Switch Set the DIP switch locat ed on th e thermosta t circuit boa rd (FIG. 4 ) according to the appl ication n eeds (see the DIP Switc h Settings table belo w for detail s ).
ViewStat Installation and Wiring 10 ViewStat Communicating Thermostat Attaching the MiniVe rter to the ViewStat Before attaching the MiniV erter to the rear of the V iewStat, connect the wi ring, as described bel ow: 1. Detach the faceplat e from the base of t he V iewStat.
ViewStat Installation and Wiring 11 ViewStat Communicating Thermostat 9. Connect the Cat-5 RJ-45 connecto r on the MiniV erter to the Control System (Master or ICSNet Hu b ).
ViewStat Installation and Wiring 12 ViewStat Communicating Thermostat Mounting the Base to a Wall There are four screw holes located on the base of the thermos tat; two are for a junctio n box mountin g, along with two for alternate mo unting spacing.
ViewStat Installation and Wiring 13 ViewStat Communicating Thermostat 3. Fasten the base to the wall with the supplied screws. 4. Seal wire e ntry u s ing cau lk, dryw all putty or insulation.
ViewStat Installation and Wiring 14 ViewStat Communicating Thermostat Connecting to an Axcess Control System (via AXC-232++, AXB- EM232, or Axcent3/ PRO) T o connect the V iewStat to an Axcess control.
ViewStat Installation and Wiring 15 ViewStat Communicating Thermostat Connecting to an Axcess Master Con troller via the RS232/422/485 ( D B-9) Port The ta ble belo w lists the connector pins, signal type s, an d si gnal fu nctions for R S-232/RS- 422/RS- 485 DB-9 (male) connect or on an Axcess Master Con troller (i.
ViewStat Installation and Wiring 16 ViewStat Communicating Thermostat Connec ting to NetL inx Integ r ated Contr ollers via the RS232/4 22/485 (DB- 9) Po rt The ta ble belo w lists the connec tor pins, signal types , and si gnal functio ns for RS-23 2/RS-422/R S- 485 DB -9 (male) connect or on an NetLinx Int egrated Controllers (i.
ViewStat Installation and Wiring 17 ViewStat Communicating Thermostat Connecting to a NetLinx Mast er controller via NXC-COM card The V iewstat can connect to a Net Linx NXF Cardframe or NXI equi pped with a NXC-COM Dual COM P ort Control Card. The follo wing table sho ws the card edge pi n out information for th e NXC-COM card.
ViewStat Installation and Wiring 18 ViewStat Communicating Thermostat Connecting to a LandMark Cont rol System PhastLink cables are used to connect al l Phast Link-co mp atible devices, in cluding keypads, dimmers , J-box IR devices, ampli f iers, aud io switches, etc .
ViewStat Installation and Wiring 19 ViewStat Communicating Thermostat Connecting to a Landmar k Control System T o con nect a single V iewStat to a Land mark control syste m , use PhastLink cabling to con nect th e RJ-45 jack on the V iewStat to any av ai lable Phast Link jack on the Lan dmark Mast er (MCU).
ViewStat Installation and Wiring 20 ViewStat Communicating Thermostat Wiring the Thermostat 1. Strip 1/4" (0.63 cm) of insulation fro m each wire to be used. 2. Secu re wires into t h e ter minals on the base accor ding to the appropr iate w iring diag ram, as de scribed in the follo wing table.
ViewStat Installation and Wiring 21 ViewStat Communicating Thermostat Connecting the ViewStat to the HVAC System 1. Make sure the HV A C system power is of f. 2. The follo wing figures (FIG. 14, FIG. 1 5) show wiring diag rams for se veral d ifferent HV A C equipment types.
ViewStat Installation and Wiring 22 ViewStat Communicating Thermostat b. FIG. 15 shows a typi cal he at/cool wiring schemati c: FIG. 1 5 Typical heat p ump wir ing sche matic RC RH Y1 W1 G O W2 C RSC RSA RSB RSR R REF Y2 B- B+ A+ A- B CAUTION! ENSURE HVAC SYSTEM POWER IS OFF BEFOR E WIRING USE 18-20 G A.
ViewStat Installation and Wiring 23 ViewStat Communicating Thermostat Checking HVAC System Operation Use the thermos tat buttons to verify that the thermostat i s controlling the eq uipment operat ion. A checkout procedur e is supplied in the installation instructions su pplie d w ith therm ostat.
ViewStat Installation and Wiring 24 ViewStat Communicating Thermostat 7. Use the up arrow button to raise the set point 3°F above room temperature. In 5- 10 seconds, the first stag e of heatin g beg ins and the HEA T message icon be gins to flash . If there is a second stage it will begi n in 4 minutes.
ViewStat Installation and Wiring 25 ViewStat Communicating Thermostat 6. After the address has bee n selected, pre ss the Enter b utton to store the address. 7. Use the Scrol l Up and Scroll Do wn buttons to set th e "Numbe r of Stats on the Network" to th e high est address th at will be o n the th ermostat network.
ViewStat Installation and Wiring 26 ViewStat Communicating Thermostat Wiring D iagrams Single -stage furnace and AC c onfi guratio n. FIG. 1 8 Single-stage furnace and AC configuration ViewStat (from .
ViewStat Installation and Wiring 27 ViewStat Communicating Thermostat Two-stage furnace and tw o-stage AC configur ation. FIG. 1 9 Two-stage furnace a n d two-s tage AC conf iguration ViewStat (from M iniV er t er) Bla ck (common) Red (power) IMPORT ANT! The B terminal i s for reversing valve-heat.
ViewStat Installation and Wiring 28 ViewStat Communicating Thermostat Roof top unit (two-st age heat and two-stage cool) co nf igurat ion. FIG. 2 0 Roof top unit (two-stage heat and two-stage cool ) configuration Vie wStat (fr om MiniV erter) Blac k (common) Red (po wer) IMPORT ANT! The B termin al is for re versing valve -heat.
ViewStat Installation and Wiring 29 ViewStat Communicating Thermostat Boiler w ith AC (t wo transfor mers) configur ation. FIG. 2 1 Boiler with AC (two transformers ) configuration Vie wStat (from MiniV er ter) Black (common) Red (power) IMPORT ANT! The B terminal i s for reversing valve-heat.
ViewStat Installation and Wiring 30 ViewStat Communicating Thermostat Single -stage heat pump configur ation FIG. 2 2 Single-stage hea t pump configuration Vie wStat (from MiniV er ter) Bla ck (common) Red (power) IMPORT ANT! The B termin al is for re versing valve -heat.
ViewStat Installation and Wiring 31 ViewStat Communicating Thermostat Two-stage heat pump config uration. FIG. 2 3 Tw o-sta ge he at pum p co nfigu ratio n Vie wStat (from MiniV er ter) Bla ck (common) Red (power) IMPORT ANT! The B terminal i s for reversing valve-heat.
ViewStat Installation and Wiring 32 ViewStat Communicating Thermostat First- s tage rad iant flo or heat, seco nd-sta ge furna ce one sta ge of coo ling con f igur ation.
Suppor t Module I nstallation and Wiring 33 ViewStat Communicating Thermostat Support Module Installation and Wiring Foll ow the guid elines for p lacement of the su pport m odules (as describ ed below), and locate the V iewStat indoor s where the operating range of the V ie wStat (32° - 99°F/0 ° - 37°C) will not be violated (i.
Support Module Installation and Wiring 34 ViewStat Communicating Thermostat 6. Snap the circuit b oard back into the sub-base by sliding the top of the board in first and the n snappin g do wn on the bott om. Check to be sure that the latch holds the board properly .
Suppor t Module I nstallation and Wiring 35 ViewStat Communicating Thermostat 1. Remov e the thermostat fro m the sub-ba s e. 2. W ire the first sensor us ing th e single support module instruct ions. Daisy cha in the rema ining support module s as shown be low (FIG.
Support Module Installation and Wiring 36 ViewStat Communicating Thermostat DIP switches 1 and 2: Address (1-4) The follo wing diagram sho ws how to set th e top two address DIP switc hes. Each suppo rt module m u st ha ve its o wn address (1-4). DIP switch 3: Temperature Sensor 1 Each supp ort modul e has two senso rs: Sens or 1 and Senso r 2.
Suppor t Module I nstallation and Wiring 37 ViewStat Communicating Thermostat Applicat ions Heat Pum p App lications If the su pport m odule is be ing use d with a he at pump thermosta t with auxiliar.
Support Module Installation and Wiring 38 ViewStat Communicating Thermostat Troubleshooting Remote Sensors Thermostat ha s no display: Ch eck 24 V AC supply . Check for incorrect wiring bet ween the thermostat and support modu le. Incorrect wiring can damage the therm ostat and transfo rmer or blow a fuse in the equipmen t.
Set Up and Co nfiguration 39 ViewStat Communicating Thermostat Set Up and Configuration The V iewStat has many feature s that can be adju sted to customi ze operatio ns. T empe rature Contr ol Se t Up , Balance P oin t Set Up and Communica tions Set Up , in particul ar , should on ly be adj usted wi th the help of a qualified se rvice tech nician.
Set Up and Configuration 40 ViewStat Communicating Thermostat Network Override Set-Up This ena bles or dis ables the Network Override feature. When Networ k Override ha s been inv oked the thermostat wil l only respond to the butto ns of the thermostat; c ommands sent b y the auto mation system a re ignor ed.
Set Up and Co nfiguration 41 ViewStat Communicating Thermostat Security Set-Up This prevents unauthoriz ed individuals from accessi ng Thermostat Set-Up. A code can be setup tha t must be entered to gain en try into Th e rmostat Se t-Up (FIG. 3 5). FIG.
Set Up and Configuration 42 ViewStat Communicating Thermostat Communications Set-Up This is where the thermostat address is entered. Add itio nally , the total numbe r of thermost ats (or the highest addressed sta t on the network) is ente red here to optim ize comm unication tim ing.
Set Up and Co nfiguration 43 ViewStat Communicating Thermostat Balance Point Set-Up Balance po ints limit he at pump operati on when the outd oor temperature is too h igh or too lo w . It require s an option al support m odule with an outdoo r temperatu re sen sor .
Set Up and Configuration 44 ViewStat Communicating Thermostat FIG. 3 8 Display set-up Show T emp Set pts Next Display Set Up M ore T emper ature Scale ° F ° C F EXIT Back Alway s Show Setpts On ly M.
Using the NetLinx Module to P rogram the ViewStat 45 ViewStat Communicating Thermostat Using the NetLinx Module to Program the ViewStat AMX_ViewStat NetLin x Module - Overview The V iewStat Commu nicating Th ermostat may be contro lled from a Net Linx system using the AM X_V iewS tat NetLinx mo dule.
Using the NetLinx M odule to Program the View Stat 46 ViewStat Communicating Thermostat It is important that t he serial number array be the sam e length as the device array . If the serial num ber array happens to b e shorter , the leng th will be set to that of the de vice array and the ne w members of the array will be set to the value 1.
Using the NetLinx Module to P rogram the ViewStat 47 ViewStat Communicating Thermostat cool setpoi nt would be set to 72. While th e temp erature is wi thin this range nothin g is done. Once the temperatu re fall s outside thi s rang e the system takes action and switches to the appropriate m ode.
Using the NetLinx M odule to Program the View Stat 48 ViewStat Communicating Thermostat Command Interface - SEND_COMMANDs (Cont.) Comman d Descripti on 'T-<stat> FAN?' Query for c urrent fan state.
Using the NetLinx Module to P rogram the ViewStat 49 ViewStat Communicating Thermostat Command Interface - SEND_COMMANDs (Cont.) Comman d Descripti on 'T-<stat> HMODE?' Q uery for current humidify mode.
Using the NetLinx M odule to Program the View Stat 50 ViewStat Communicating Thermostat Command Interface - SEND_COMMANDs (Cont.) Comman d Descripti on 'T-<tstat> LIGHT-<val>' Control backlight on thermostat.
Using the NetLinx Module to P rogram the ViewStat 51 ViewStat Communicating Thermostat Command Interface - SEND_COMMANDs (Cont.) Comman d Descripti on 'T-<tstat> MSG-<text>' Displays text on thermostat window when ME NU is enabled.
Using the NetLinx M odule to Program the View Stat 52 ViewStat Communicating Thermostat String Feedback The NetLinx module will provide feedback to the glue code for V iewStat syste m changes via strin g e ven ts. Below are the strin gs suppor ted. Data coming fro m the modu le will be in the form of strings.
Using the NetLinx Module to P rogram the ViewStat 53 ViewStat Communicating Thermostat String Feedback (Cont.) Stri ng Desc ription 'T-<stat> FAN-<val>' Reports current fan state.
Using the NetLinx M odule to Program the View Stat 54 ViewStat Communicating Thermostat String Feedback (Cont.) Stri ng Desc ription 'T-<tstat> HUMIDIFY-val>' Reports current humidify set point .
Using the NetLinx Module to P rogram the ViewStat 55 ViewStat Communicating Thermostat String Feedback (Cont.) Stri ng Desc ription 'T-<tstat> TEMP-<val>' Reports current inside temperature.
Using the NetLinx M odule to Program the View Stat 56 ViewStat Communicating Thermostat.
Operating the Thermostat 57 ViewStat Communicating Thermostat Operating the Thermostat This secti on descr ibes the fro nt panel com ponents , and gives instruc tions for op erating the V iewStat thermostat.
Operating the Thermostat 58 ViewStat Communicating Thermostat Fan but ton The fan can be operat ed contin uously (F AN ON) or only when t here is a need to he at or cool.
Operating the Thermostat 59 ViewStat Communicating Thermostat Operating The Thermostat Notes on temperature adjustmen ts: The COOL setting must a lways be a m inimu m of 2° (F or C) h igher than the HEA T setting. Th e thermosta t will autom a ticall y maintain the 2 ° differ ence.
Operating the Thermostat 60 ViewStat Communicating Thermostat – Setting temperatures Press the Up or Down adj ust butto n . The set ting to be changed wi ll begin to fl ash. Press an d hold th e button to chan ge the se tting. If operating in th e HEA T mode, the o nly temperatu re set point a vailable to change is the Heat setting.
Operating the Thermostat 61 ViewStat Communicating Therm ostat.
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