RCS TR16, Installation And Operation Manual

Page 1: ...ing part numbers and revisions or later IMPORTANT NOTICE DO NOT USE THIS PRODUCT FOR BUILDING FREEZE PROTECTION YOU ARE ADVISED TO INSTALL A MECHANICAL FREEZE PROTECTION DEVICE FOR THIS PURPOSE TR16 Operation Product Rev Part No Firmware TR16 485 Thermostat P 001 00930 30 TS16 Wall Display Unit G 001 00910 12 TS16v340 HFR 485 HVAC Control Unit P 001 01430 03 HFR3052 RCS Residential Control Systems...

Page 2: ... by continuing to support the current SP command for both commands and status reports In addition to the universal Standard or Heat Pump HVAC systems support the TR16 has multistage heating cooling system outputs The control unit can support 2 stages of heating and cooling for Standard systems It supports 3 stages of heating and 2 stages of cooling for Heat Pump systems The TR16 has a convenient s...

Page 3: ... are pushed the LCD display will change to show that function s current status The LCD display will stay in the new display mode as long as buttons are being pushed After 3 seconds of no activity the display will change back to show current temperature The right decimal point on the LCD display will turn on whenever manual fan is ON The left decimal point will flash whenever the setback mode is ON...

Page 4: ... the HVAC system Heating or Cooling mode TO VIEW THE CURRENT MODE Push the MODE button once and the LCD display will change to show the current mode TO CHANGE THE MODE While the mode is being displayed pushing the MODE button again will go to the next mode The system mode cycles from Off to Heat to Cool to Auto and back to Off again with each push of the MODE button Once you stop pushing the butto...

Page 5: ...the digits is used to indicate addresses in the 200 to 254 range shown as 00 to 54 To exit press the mode button again or wait for the screen to time out and return to the normal thermostat temperature display Setting the Fahrenheit or Celsius mode In the setup mode press the mode button to select FC mode The TR16 is default set to F mode To change the degree mode press the UP DOWN buttons to sele...

Page 6: ...nly No Yes Used as remote sensor only Yes No Average internal and one remote No Yes Average two remotes only 2 Optional with A2 Yes with A1 When averaging sensors are used the average temperature is displayed on the WDU and reported to the HVAC control unit You cannot view an individual remote averaging sensor temperatures as the main thermostat display or report individual sensor temperatures on ...

Page 7: ...geover In additional to the multiple stages the TR16 has adjustable temperature difference delta between stages and an adjustable deadband between heating cooling setpoints These control unit variables can be changed via network commands The examples below are based on the default settings In the HEAT mode the stage 1 heating will be turned on at one degree below the heating setpoint and will turn...

Page 8: ... Control Unit HVAC System Outputs for Standard Systems Operating Mode Outputs no Fan with Heat Outputs Fan with Heat Manual Fan G G Cooling Stage 1 G Y1 G Y1 Cooling Stage 2 G Y1 Y2 G Y1 Y2 Heating Stage 1 W1 G W1 Heating Stage 2 W1 W2 G W1 W2 HEAT PUMP HVAC SYSTEM OPERATION The TR16 has Heat Pump operating modes of Heating Cooling Auto changeover and Emergency Heat The Heat Pump HVAC system opera...

Page 9: ...d expires the CO relay will already be on and this avoids continuous on off cycling the CO valve for each call After the MOT period expires and another call is not active the CO output will go OFF TR16 Control Unit HVAC System Outputs for Heat Pump Systems Operating Mode Changeover with Cool Changeover with Heat Manual Fan G G Cooling Stage 1 G O Y1 G Y1 Cooling Stage 2 G O Y1 Y2 G Y1 Y2 Heating S...

Page 10: ...ltaneously press the Fan button This enters the setup mode and Ad will be displayed Set the desired address by pressing the UP DOWN buttons until the desired address from 1 to 254 is selected The default address is 1 Serial Protocol The TR16 thermostat has a robust serial protocol It is based on a simple ASCII message format as described in the RCS Serial Communications Protocol manual DCN 150 002...

Page 11: ...ires TR16 Control Unit Heating Cooling System TR16 Wall Display Unit Thermostat Replace Thermostat with Wall Display Unit Insert Control Unit into the thermostat wiring OLD NEW 4 5 or 6 wires as original installation R W 40 45 Heating System Thermostat connections Red Wire 24VAC R White Wire Heat W Freeze Protection In cold climates that require the heating system to be used for building freeze pr...

Page 12: ...hermostat wiring a least 4 wires may be adequate However such non twisted wiring may be subject to interference due to noise from adjacent wiring or other sources Wiring to the Wall Display Unit Hook TOP here and rotate into base Be sure pins engage in connector ok TO CLOSE OPENING AND CLOSING THE WDU CASE OPEN CLOSE TO OPEN PULL FROM LOWER CORNERS G 12 C D 1 POWER GND 2 POWER 3 COM CLOCK 4 COM DA...

Page 13: ...looks like a standard thermostat to your HVAC system All connections to the HVAC system are made at the normal thermostat connections on the HVAC unit You are advised to refer to your HVAC system s documentation for specific information on its thermostat connections and setup requirements You must know the following 1 HVAC system type Gas Electric or Heat Pump 2 Fan type No fan with Heat typical o...

Page 14: ...d Y1 for cooling stage 1 Two Stage Heating systems use W1 for stage 1 and W2 for stage 2 heating Two Stage Cooling systems use Y1 for stage 1 and Y2 for stage 2 cooling HVAC System 24VAC Transformer If you have an integrated heating and cooling system with a single transformer do NOT cut jumper JP1 Wire the 24V Return red wire to either RH or RC This is typical of most central systems If you have ...

Page 15: ...e 1 heating cooling and W1 for stage 2 heating heat strips Two Stage Compressor Systems use Y1 for stage 1 Y2 for stage 2 heating cooling and W1 for stage 3 heating heat strips NOTE You must configure the Changeover valve setting to work correctly with your HVAC system Set Dipswitch SW1 as below for correct changeover operation Changeover with cool is typical for most systems Check your system inf...

Page 16: ...plit Transformer Systems Most HVAC systems have a common heating and cooling transformer Connector JP1 is jumpered to common the RH and RC inputs together for this configuration If you have a system with separate heating and cooling transformers you will need to split the RH and RC jumper by cutting the JP1 jumper When wiring split systems wire the heating systems 24VAC R red wire to the Control u...

Page 17: ...serial commands and can provide all thermostat data and setup information as well as the current revisions of the WDU and Controller firmware The following thermostat information can be sent to or requested from the thermostat by the serial protocol Temperature Heating setpoint Cooling setpoint System Mode Fan Mode F C mode HVAC output status Network Address Any system variable System firmware rev...

Page 18: ...il LED stops flashing twice before proceeding 11 Press the Mode button until the WDU is showing O for OFF The Heat LED and relay will turn OFF 12 Wait 6 minutes for the minimum off delay to expire The Status LED will stop flashing twice 13 Press the Mode button until the WDU is showing C for Cool Mode 14 Press the Setpoint Down button until the setpoint is below the current temperature 15 The Comp...

Page 19: ...erminals on the HVAC thermostat connector Use a short 6 inch wire to connect across the following terminals Function Test HVAC Terminals Result Fan R to G Fan should come on Heating R to W Heat cycle should start for heating Cooling R to Y and G Compressor and Fan should start for cooling Heat Pump System Quick Test Similarly you can test Heat Pump operation by shorting across the following termin...

Page 20: ...P1 In some cases you may have separate heating and cooling systems each with their own transformer In that case cut Jumper JP1 and wire the heating transformer red wire to the RH terminal and the cooling system transformer red wire to the RC terminal Wire the cooling system s 24VAC Com to the control unit s 24VAC Com terminal Dipswitch SW1 Settings White is switch position SW1 S1 STANDARD OR HEAT ...

Page 21: ...age 5 Returns only Mode data R 6 Request Status Message 6 Returns Model Version number of WDU and Control Unit R 9 Request Status Message 9 Returns state of setup dipswitch settings Network Variables for SVx command Example A 1 SVx will return current value of variable Variable Number Name Variable Data Default value Notes 1 System Type 0 1 0 0 Gas Electric 1 Heat Pump 2 Fan Type 0 1 0 0 Gas No fa...