Installation Instructions Document No. 125-1009 April 27, 2020 RDY2000BN BACnet Enabled Commercial Room Thermostat Item Number 125-1009, Rev. CA Page 1 of 21 Para accede al documento en Español, escanee el código QR que se encuentra en la parte trasera del termostato. Figure 1. RDY2000BN Thermostat. Product Information The BACnet Enabled Commercial Room Thermostat is designed for use with any Energy Management System providing BACnet MS/TP communication. Use Commercial Room Thermostat RDY2000BN for stand-alone operations. Scan QR code on thermostat rear housing for additional information. Product Number RDY2000BN Product Specifications System Compatibility Conventional Up to 3 Heating/3 Cooling stages Heat Pumps Up to 4 Heating/2 Cooling stages Electrical Characteristics Power Supply 24 Vac +/-20%, Class 2, 4A max. Power Usage 4 VA (maximum) Output Relay Ratings Pilot duty, 1A max. per output, 4A max. total MS/TP Load 1/8 (96 KΩ), internal network bias Ambient Limitations Operating Temperature 23°F to 122°F (-5°C to 50°C) Storage/Shipping Temperature -13°F to 158°F (-25°C to 70°C) Relative Humidity Up to 95% (non-condensing) Enclosure Rating NEMA 1 NOTE: The RDY2000BN is not battery-powered. It requires 24 Vac power from the HVAC equipment at terminals RH/RC and C. Caution Notations CAUTION: Equipment damage or loss of data may occur if you do not follow the procedures as specified. WARNING: Personal injury or loss of life may occur if you do not follow the procedures as specified. Required Tools • No. 1 Phillips screwdriver • 1/8” flat-blade screwdriver • Drill with 1/8" drill bit Expected Installation Time 15 minutes CAUTION: The RDY2000BN is an advanced controller designed to be installed by professional HVAC technicians. Installation by non- qualified personnel may result in degraded system efficiency, occupant discomfort, or equipment damage. Prerequisites WARNING: Turn off power to the HVAC equipment before attempting to remove an existing thermostat or install a new thermostat. All work must be performed in accordance with the applicable codes and standards. • Energy Management System Network Plan and HVAC schematics are available. • MS/TP run to thermostat using 24 AWG Low Capacitance 1.5 Twisted Shielded Pair cable. Shield and reference terminator to be earth grounded only at one point on network. • HVAC equipment connections run to thermostat with 18 gauge thermostat wires. • Sensor connections run to thermostat with 22 gauge twisted pair cable or remote sensor wiring. Do not exceed 164 ft (50 m). Document No. 125-1009 Installation Instructions April 27, 2020 Page 2 of 21 Siemens Industry, Inc. Installation Figure 2. Mounting Locations. Install the thermostat approximately 5 feet (1.5M) above the floor in a location with good air circulation, where it can properly represent the average temperature in the zone. Avoid the following locations which could affect the sensor measurement accuracy: • Dead areas: behind doors, furniture or curtains; in corners or alcoves. • Hot/cold areas: concealed pipes or ducts; drafts from heat sources or from doors or windows; convection or radiant heat from the sun or any electrical equipment; Unheated (uncooled) structure parts such as outside walls behind the thermostat. An external room temperature sensor is recommended if those situations cannot be avoided in the installation area. Refer to Energy Management System Network Plan for MS/TP installation and configuration parameters. 1. Verify power to HVAC equipment is turned off. 2. Optional: To replace an existing thermostat: a. Remove the existing thermostat. b. Record wiring connections to existing thermostat base plate terminals. c. Remove the existing base plate. 3. Install the new thermostat base plate. a. Feed all installed wires through the opening in base plate and strip to 3/16-inch (5 mm). b. Secure the base plate to the mounting surface using supplied hardware. NOTE: Ensure that the UP arrows embossed on the base plate are pointed upward. Figure 3. Thermostat Base Plate. 4. Attach the HVAC system wires to appropriate terminals on the thermostat base plate Figure 3. a. Verify HVAC equipment schematics for required circuit connections to thermostat Wiring Diagrams, Figure 5 and Figure 6. b. Verify each 24 Vac transformer secondary neutral is connected to HVAC ground. c. If a single transformer is used, leave the Jumper RH-RC in place. Connect 24 Vac to RC terminal, and neutral to terminal C. d. If separate transformers are used for heating and cooling systems, remove the Jumper RH-RC. Connect cooling 24 Vac to terminal RC, neutral to terminal C and heating 24 Vac to terminal RH. e. Connect control wires to terminals Y1, Y2, O/B, G, W1, W2, OUT1, OUT2, or OUT3. f. Connect Sensor wires to terminals IN1, IN2, IN3, or IN4 and adjacent INC common. Optional: Auxiliary Output 3 can be changed to a dry (unpowered) contact by removing Jumper RC-C3 and connecting dry contact wires to OUT3 and C3. See Wiring Diagrams, Figure 7. Optional: If using Configurable Inputs 1 to 4 or Auxiliary Outputs 1 to 3, use setup parameters P301 to P320 to set functionality. 5. Attach MS/TP wire to NET terminals on left of the thermostat base plate Figure 3. CAUTION: To ensure signal integrity observe MS/TP network wire polarity, reference terminator and shield earth grounded at one location, two end of line terminators, and if required an external network bias device. MS/TP devices from some vendors may refer to input A as (-) and input B as (+) or may require external network bias. Document No. 125-1009 Installation Instructions April 27, 2020 Siemens Industry, Inc. Page 3 of 21 For RDY2000BN, NETA is non-inverting input A (+) internally biased high, NETB is inverting input B (-) internally biased low to REF (↓), and external bias is not required. a. Refer to the network plan for MS/TP wire color code used for (+), (-), and (↓). b. See Figure 8 for wiring thermostat at the middle of line (two MS/TP cables) or at the end of line (one MS/TP cable). c. If thermostat at the middle of line, connect terminals to two MS/TP cables with (+) to NETA, (-) to NETB, and (↓) to REF. Connect shield wires together and insulate. d. If thermostat at the end of line, connect terminals to one MS/TP cable and one end of line terminator with (+) and terminator to NETA, (-) and terminator to NETB, and (↓) to REF. Verify shield is connected to earth ground and insulate. 6. Attach thermostat to base plate by engaging tabs at the top and rotating the thermostat downward until securely seated on base plate. 7. Secure the thermostat to the base plate with the Phillips screws (provided), using the holes at the bottom of the housing. 8. Remove thermostat LCD screen cover. 9. Optional: store 2 nd BACnet Serial Number Label with the BACnet Energy Management System commissioning documents. The installation is now complete. Restore power, and continue to Thermostat Setup. Thermostat Setup Figure 4. Thermostat Display. Thermostat Display Navigation Bar Only one function can be selected at a time. The small bar (cursor) below the function icon indicates that a function is selected. Pressing an icon twice navigates back to the Main screen. A double bar cursor below the Settings icon [] indicates that you are in Programming mode. The navigation bar at the bottom of the display consists of four function icons. Table 1. Navigation Bar Icons. Icon Name Purpose Setpoint Enables adustment of temperature and humidity (if applicable) setpoints. Unit will display heating setpoint if in Heating mode or cooling setpoint if in Cooling mode. Fan Control Enables fan relay to be controlled as needed by thermostat (AUTO) or to be on continuously (ON). Mode Selector Enables manual changeover between Heating and Cooling mode. AUTO will enable the thermostat to automatically switch between heating and cooling mode as required. OFF will disable all control functions. Settings Enables Scheduler, Time/Date, and Installer Set Up configuration. Also enables access to service reminder and fault messages. Service Reminders and Fault Messages • Service reminders appear at the right side of the screen: – SERVICE UV LAMP – SERVICE HUMIDIFIER – SERVICE AIR FILTER They are determined by the timer set in the Installer Setup Menu, and can be cleared by pressing the Settings icon [], and then SERVICE. See Clearing Service Reminders. • Active fault messages appear at the left side of the home screen: – CONNECTION LOST (Not applicable to this model) – DEMAND RESPONSE (Not applicable to this model) – SERVICE REQUIRED (See Viewing Fault Messages) Fault messages are automatically cleared when the root cause of the failure is resolved. Status Bar The status bar at the top of the display consists of 11 icons. Document No. 125-1009 Installation Instructions April 27, 2020 Page 4 of 21 Siemens Industry, Inc. Table 2. Status Bar Icons. Icon Name Meaning Occupied Space is occupied, based on Schedule and/or Occupancy Sensor. Keypad Lock Keypad is locked. Scheduler Unit is running on the local schedule. Override The Scheduler is being overridden by local control. Humidity Control Indicator Droplet and (+) indicates humidification relay is on. Droplet and (-) indicates dehumidification relay is on. If neither relay is on, the water droplet does not appear. Fan Fan relay is on. Fresh Air Economizer Enable/ Ventilation relay is on. Cool Mode The system is actively in cooling mode. Heat Mode The system is actively in heating mode. Heating/Cooling Stages Each segment represents one stage of heating or cooling. Auxiliary Heating Auxiliary heating stage: AUX=Stage 1: Aux 2=Stage 2 Document No. 125-1009 Installation Instructions April 27, 2020 Siemens Industry, Inc. Page 5 of 21 Wiring Diagrams Figure 5. Wiring Schematic, Conventional System. Document No. 125-1009 Installation Instructions April 27, 2020 Page 6 of 21 Siemens Industry, Inc. Figure 6. Wiring Schematic, Heat Pump. Figure 7. Wiring Schematic, Aux Output 3. Figure 8. Wiring Schematic, MS/TP NET Port. Document No. 125-1009 Installation Instructions April 27, 2020 Siemens Industry, Inc. Page 7 of 21 Set-up Wizard When unit is powered up for the first time, WIZARD displays. This tool is used to program the basic system parameters. Additional parameters can be accessed directly via Installer/Expert Set-up menus. NOTE: The thermostat will not start the control sequence until Set-up Wizard is complete. 1. Press WIZARD to access the menu. NOTE: Press left [] and right [] arrows to select parameters. Press + or – to change parameter settings. 2. After completing all Wizard parameters, press Confirm to save and complete. 3. INSTALLER displays. 4. Press INSTALLER to access Installer Menu. a. Enter values obtained from the Energy Management System Network Plan for the 600 Series BACnet Configuration Parameters. See Table 8. NOTE: Required to communicate with the Energy Management System. 5. If setup is complete, press the Settings icon [ ] to exit the Set-up Wizard. If further setup is needed, continue to Step 6. 6. Select and modify additional parameters. See Table 3 through Table 9 for all parameter descriptions. Use the space provided in Table 16 to record any modified parameter settings. 7. Press the Settings icon [] when finished to exit setup. Programming Temperature Setpoints 1. Touch the center of the Home screen to access the room temperature screen. Use the left [] and right [] arrows adjacent to the text line to display the room temperature and humidity. 2. Touch the Setpoint icon [] of the screen to access room temperature and humidity setpoints. NOTE: Only the setpoints in the current mode display and can be modified. For instance, if the thermostat is in heating mode, only the heating setpoint displays and can be modified. If the thermostat is in AUTO mode, both the heating and cooling setpoints will be displayed and can be modified. 3. Use the left [] and right [] arrows to access the different setpoints, and the + and – icons to adjust the setpoints. 4. Touch the center of the screen to exit Setpoint Programming. NOTE: If the screen is not touched for 10 seconds, the unit returns to the Home screen. Programming Time and Date 1. Touch the center of the Home screen. 2. Press the Settings icon []. SCHEDULER displays. 3. Use the left [] and right [] arrows to access the Time menu. Press TIME. Press the two-digit hour display to change the hour, or press the two-digit minute display to change the minutes. Press the left arrow to decrease the value, and the right arrow to increase the value. 4. Press the Settings icon [] to save. 5. Use the left [ ] and right [ ] arrows to access the Date menu. Press DATE. Use the arrows to select the month and year; use +/- to set the date. 6. Press the Settings icon [] to save. Installer Menu 1. Touch the center of the Home screen. 2. Press the Settings icon []. SCHEDULER displays. 3. Press the left arrow [ ]. 4. Press INSTALLER. 5. Using the lower left [] and right [] arrows, enter the password. 6. Press PASSWORD to accept the password. NOTE: The Installer Level default password is 00:00 7. Press the Settings icon [] to accept changes and return the unit to the Home screen. NOTE: If you do not provide input, the thermostat will automatically exit the Installer menu and resume normal system control after five minutes. Document No. 125-1009 Installation Instructions April 27, 2020 Page 8 of 21 Siemens Industry, Inc. Programming the Schedule 1. Touch the center of the Home screen. 2. Press the Settings icon []. SCHEDULER will display. 3. Press SCHEDULER. 4. Use the left [] and right [] arrows to select the day. Press the day to select. 5. Use the + and – icons to set the mode: Comfort (ON) or Economy (ECO). 6. Use the left [] and right [] arrows to adjust the start time for each programming period. Adjust the hours and minutes individually by pressing the two-digit hour or two-digit minute fields. 7. Use the left [] and right [] arrows to select the next event for the given day. Configure remaining events as desired. 8. Press the Settings icon [], then the left [] and right [] arrows to select the next day. Repeat steps 5 through 7 until the schedule is fully programmed. Maintenance Locking/Unlocking the Touch Screen To prevent unauthorized access to thermostat settings, use Parameter P211 to configure screen lockouts. The lock icon [] indicates that the screen is locked. To unlock the keypad, do the following: 1. Touch the center of the Home screen to access the room temperature screen. 2. Press the Settings icon [] once and LOCKED displays. 3. Press and hold the Settings icon [] for 5 seconds; PASSWORD displays. 4. Using the lower left [ ] and right [ ] arrows, enter the INSTALLER password. 5. Press PASSWORD to accept the password. 6. Set Parameter 211 (Keypad Lockout) to OFF to disable keypad lockout. 7. Touch the Setpoint icon [] of the screen to return to the Home screen. Clearing Service Reminders The thermostat displays SERVICE REQUIRED and an associated service reminder if the reminder timer (Parameters 208 - 210) has timed out. To clear these, do the following: 1. Touch the center of the Home screen to access the room temperature screen. 2. Press the Settings icon [] and SERVICE displays. 3. Use the left [] and right [] arrows to select the service reminder. 4. To clear, touch the + icon and the display changes from “-----“ to OFF. 5. Counter resets and reminder icons turn off. Viewing Fault Messages The thermostat displays SERVICE REQUIRED if a sensor fails or a service reminder has timed out. To view these, do the following: 1. Touch the center of the Home screen to access the room temperature screen. 2. Press the Settings icon [] and SERVICE displays. 3. Press SERVICE and review faults. Use the left [ ] and right [ ] arrows to see all faults. NOTE: The fault message is automatically cleared when the root cause of the failure is resolved. Resetting the Unit to Factory Defaults CAUTION: The following steps set ALL parameters to factory defaults (including passwords), and restart the Set-up Wizard. 1. Log in as either an Installer or Expert. 2. Press the left [] arrow. RESTORE displays. 3. Press + to change the setting to YES. 4. Press RESTORE. This resets the unit and restarts the Set-up Wizard. Document No. 125-1009 Installation Instructions April 27, 2020 Siemens Industry, Inc. Page 9 of 21 Table 3. 100 Series Parameters. Parameter Definition Display Value Range Default Extended Definition Notes P101* System Type SYS TYPE CO(1) HP(2) CO CO = Conventional HP = Heat Pump P102* Cooling Stages COOL STGS 0 1 2 3 2 Sets number of cooling stages P103* Heating Stages HEAT STGS 0 1 2 3 2 Sets number of heating stages P104* Aux Heating Stages AUX HT STG 0 1 2 0 Sets number of auxilary heat stages P105* Fan Operation HTG FAN ELE gAS ELE ELE = Fan Relay energized on call for heat gAS = Fan Relay always energized unless Aux Heat calls for heat. P106* Reversing Valve REV VALVE 0 b 0 0 = Energize reversing valve on cooling b = Energize reversing valve on heating ~ This parameter only appears if system is heat pump P107* Scheduler Days SCHEDULER 1 2 3 7 OFF 2 1 = Schedule all days with same schedule 2 = One schedule for M-F and another for Sat + Sun 3 = One schedule for M-F, Sat + Sun scheduled individually 7 = Schedule each day individually OFF = Scheduler Disabled P109* Units UNITS F C F P110 Changeover AUTO CHNGE YES NO YES ~ This parameter does not appear on systems that are heat only or cool only P111 Changeover Deadband DEADBAND 3 4 5 6 7 8 9 5°F Deadband in degrees F ~ This parameter does not appear if CHANGEOVER = M ~ This parameter does not appear on systems that are heat only or cool only P112 Daylight Savings DAYLT SAVE YES NO NO Y = Auto adjust for daylight savings time N = Does not auto adjust for daylight savings time P113 Display Temp Setpoint TMP SP DIS 0=Absolute 1=Relative 0=Absolute Selection of setpoint display: absolute or relative value * Included in Set-up Wizard Next >