Carrier RTU Open v5 Installation And Startup Manual
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Carrier RTU Open v5 Installation And Startup Manual

Carrier RTU Open v5 Installation And Startup Manual

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CARRIER CORPORATION ©2018
A member of the United Technologies Corporation family · Stock symbol UTX · Catalog No. 11-808-696-01 · 6/8/2018
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Summary of Contents for Carrier RTU Open v5

  • Page 1 CARRIER CORPORATION ©2018 A member of the United Technologies Corporation family · Stock symbol UTX · Catalog No. 11-808-696-01 · 6/8/2018...
  • Page 2 Verify that you have the most current version of this document from www.hvacpartners.com or your local Carrier office. Important changes are listed in Document revision history at the end of this document. CARRIER CORPORATION ©2018. All rights reserved throughout the world. i-Vu is a registered trademark of Carrier...

  • Page 3: Table Of Contents

    Contents Introduction .................................. 1 What is the RTU Open controller? ........................1 Specifications ................................ 3 Safety considerations............................4 Installing the RTU Open ............................... 5 Field-supplied hardware ............................5 To mount the RTU Open ............................6 To wire the controller for power.......................... 7 To use the rooftop equipment control power transformer..............
  • Page 4 Contents Dehumidification ............................... 54 Demand Limiting ............................... 55 Door switch ................................. 55 Remote Occupancy ............................55 Fire Shutdown ..............................55 Compressor Safety ............................56 Fan Status ................................56 Filter status ................................. 56 Alarms ................................. 56 Linkage ................................59 Linkage air source mode determination ......................61 Troubleshooting .................................

  • Page 5: Introduction

    Introduction What is the RTU Open controller? The RTU Open controller (part# OPN-RTUM2) is available as an integrated component of a Carrier rooftop unit, or as a field-installed retrofit product. NOTE The RTU Open controller is available in both English or Metric units. The metric version has (-M) appended to the part number.
  • Page 6 Introduction RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 7: Specifications

    The power, network, and output connections are also protected against transient excess voltage/surge events lasting no more than 10 msec. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 8: Safety Considerations

    Safety considerations WARNING Disconnect electrical power to the RTU Open before wiring it. Failure to follow this warning could cause electrical shock, personal injury, or damage to the controller. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 9: Installing The Rtu Open

    • fan status switch • door switch • fan section door switch • relative humidity sensor • remote occupancy contact • smoke detector • temperature sensors RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 10: To Mount The Rtu Open

    • Do not locate in an area that is exposed to moisture, vibration, dust, or foreign material. • Follow NEC and local electrical codes. • Do not obstruct access for unit maintenance. • Protect from impact or contact during unit maintenance. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 11: To Wire The Controller For Power

    • Do not power pilot relays from the same transformer that powers the RTU Open. • Carrier controllers can share a power supply as long as you: Maintain the same polarity ○ Use the power supply only for Carrier controllers ○...

  • Page 12: To Use The Rooftop Equipment Control Power Transformer

    Attach harness to RTU Open connector J1. NOTE The harness and connector are keyed and must be oriented properly for correct installation. Verify that the Power LED is on and the Run LED is blinking. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...

  • Page 13: To Use An Auxiliary Control Power Transformer

    11 Attach harness to RTU Open's connector J1. See illustration below. NOTE The harness connectors are keyed and must be oriented properly for correct installation. 12 Verify that the Power LED is on and the Run LED is blinking. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...
  • Page 14 J1 - 9) where no safety devices are installed. Fire shutdown device, field-installed, configurable as normally open or closed Enthalpy switch, field-installed - configurable as normally open or closed RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 15: To Set The Controller's Address

    RTU Open's SW3 DIP switches are used to set the controller's protocol and baud rate. The protocol and speed selection is determined by the network on which the controller will be installed. For Carrier BACnet implementations, select MS/TP @ 76.8 k as follows: Power down the RTU Open.

  • Page 16: Wiring For Communications

    ARC156 N/A. Baud rate will be 156 kbps regardless of the DIP switch settings. NOTE Use the same baud rate for all controllers on the network segment. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 17: Wiring Inputs And Outputs

    Input 8 24 Vac Enthalpy ** 33SENTHSW - 6 & 7 - 1 & 2 *** Fan Status CRSTATUS005A00 Filter Status CRSTATUS005A00 Remote Occupancy Field-supplied Door Contact Field-supplied RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 18 N.C. contact must be used as a primary safety device for approved fire shutdown operation. N.O. contact for monitoring only. If a function other the default is used, do NOT connect wires from J1-x. RTU Open v5 CARRIER CORPORATION ©2018...

  • Page 19: Input Wiring Specifications

    24 Vac voltage, resulting in a 25 mA maximum sense current when the contacts are closed 6, 7, 10 Thermistor 10 kOhm at 77°F (25°C) 100k Potentiometer Typically used for 33CZT56SPT Setpoint Offset Potentiometer RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 20: Binary Outputs

    Input 11 mA Jumper Out (mA not used on this channel) Input 11 Thermistor In (default position) Input 10 mA Jumper Out (mA not used on this channel) RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 21 Turn on the RTU Open's power. • Set the appropriate jumpers on the RTU Open. *Formatting the controller may result in lost information and should only be done under the guidance of Carrier Control Systems Support. Optional Safety chain devices, field-installed - normally closed. Apply 24 Vac to this terminal (jumper from J1 - 1 to J1 - 9) where no safety devices are installed.
  • Page 22 J5 Inputs The terminals for Inputs 3, 5, and 8 are available for use in place of the flying wire leads at Molex connectors J1 and J2 identified below: RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 23 * If Unit Type is set to LC Weather Expert™ and Heat Type is gas, Input 9 is automatically set to ICG Input. J11 Outputs NOTE Output relay contacts rated at 3A, 24V maximum. Install pilot relays required by application. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...

  • Page 24: Wiring Sensors And Switches To The Controller

    NOTE This document gives instructions for wiring the sensors to the RTU Open. For specific mounting and wiring instructions, see the Carrier Sensors Installation Guide. All field control wiring that connects to the RTU Open must be routed through the raceway built into the corner post.

  • Page 25: Field-Supplied Sensor Hardware

    Filter status switch (page 38) CRSTATUS005A00 Fan status switch (page 38) CRSTATUS005A00 or field-supplied For specific details about sensors other than ZS or wireless, see the Carrier Sensors Installation Guide. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...

  • Page 26: Wiring Devices To The Rtu Open's Rnet Port

    Equipment Touch requires 24 Vac and cannot be powered by Rnet's 12 Vdc. For more details, see the Equipment Touch Installation and Setup Guide. If you exceed 200 mA, then one or more devices need an auxiliary 12 Vdc power supply. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...
  • Page 27 The ZS CO2 model uses 190 mA during sample period. Use auxiliary 12 Vdc, unless it is the only device on the Rnet port. For basic user instructions, see the ZS Sensor User Guide. For detailed installation instructions, see the ZS Sensors Installation Guide. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 28 • SPT Pro For basic user instructions, see the SPT Sensors Owner Guide. For more detailed instructions, see the Carrier Sensors Installation Guide. NOTE If the Rnet has multiple SPT Standard sensors, you must give each a unique address on the Rnet.
  • Page 29 Installing the RTU Open Wireless sensor overview The Carrier wireless sensors, designed for zone control, are low-power wireless devices that use light-harvesting through solar panels as their primary power source. The wireless line of sensors includes the models shown in the list below.
  • Page 30 Apply power to the external power supply. Verify that the LED on top of the Wireless Adapter is blinking. See "LED" below. Turn on the controller's power. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 31 To wire an Equipment Touch to the RTU Open NOTE The Equipment Touch requires a 24 Vac power supply. It is not powered by the Rnet. CAUTION Carrier controllers can share a power supply as long as you: • Maintain the same polarity.

  • Page 32: Wiring A Supply Air Temperature Sensor

    Connect the wiring harness (OPN-RTUHRN). For details, see To wire inputs and outputs (page 16). Wire the sensor to the wiring harness. See diagram below. Connect to J2 wires 1 and 2. Verify your sensor readings. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 33: Wiring A Duct Air Temperature Sensor

    Drill .25" diameter hole. Pass sensor leads through bushing and insert assembly into hole. Secure leads to ductwork with aluminum tape. NOTE Sensor termination requires installation of RTU Open wiring harness assembly (Part #OPN-RTUHRN). RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...

  • Page 34: Wiring An Outdoor Air Temperature Sensor

    Connect the wiring harness (Part#OPN-RTUHRN). For details, see To wire inputs and outputs (page 16). Wire the sensor to the wiring harness. See diagram below. Connect to J2 wires 3 and 4. Verify your sensor readings. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 35: Wiring A Co2 Sensor

    Wire the sensor to the controller. See appropriate diagram below. Install a field-supplied dedicated 24 Vac transformer or DC power supply. Wire the sensor to the controller. Wiring diagram for #33ZCSPTCO2: RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 36: Wiring An Outdoor Air Quality Sensor

    The sensor has a range of 0–2000 ppm and a linear 4-20 mA output. The CO sensor’s power requirements exceed what is available at J4 - 1 and 4. Provide a dedicated 24 Vac transformer or DC power supply. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...

  • Page 37: Wiring A Relative Humidity Sensor

    Wall and duct sensor - Part #33ZCSENSRH-02 and 33ZCSENDRH-02 The Relative Humidity (RH) sensor may be used for zone humidity control (dehumidification) when applied to a Carrier rooftop unit equipped with the Humidi-MiZer™ option. On units not equipped for dehumidification, the sensor monitors humidity, but provides no control.

  • Page 38: Wiring A Humidistat

    Wiring a Humidistat Locally Purchased A humdistat may be used for zone humidity control (dehumidification) when applied to a Carrier rooftop unit equipped with the Humidi-MiZer™ option. On units not equipped for dehumidification, the humidistat will indicate a high humidity condition only.

  • Page 39: Wiring An Enthalpy Switch

    The 33CSENTHSW is an outdoor air enthalpy switch/receiver. This control determines the suitability of the outdoor air as a cooling source, based on the heat content of the air. Differential enthalpy control requires installing a 33CSENTSEN enthalpy sensor in the rooftop unit's return air duct. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...
  • Page 40 Factory-installed enthalpy switches terminate at J2 wires 6 (switch input) and 7 (24 Vac). • Input channel must be configured for the enthalpy contact (N.O. or N.C.) that you use. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...
  • Page 41 Installing the RTU Open Wiring diagram for factory-installed enthalpy switch: NOTE Factory-installed enthalpy switches terminate at J2 wires 6 (switch input) and 7 (24 Vac). RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 42: Wiring A Status Switch

    Cable from sensor to controller: If <100 ft (30.5 meters) 22 AWG, unshielded If >100 ft (30.5 meters) 22 AWG, shielded Maximum length: 500 feet (152 meters) RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 43: Wiring A Compressor Safety

    Cable from sensor to controller: If <100 ft (30.5 meters) 22 AWG, unshielded If >100 ft (30.5 meters) 22 AWG, shielded Maximum length: 500 feet (152 meters) RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 44: Wiring An Occupancy Switch Or Door Contact

    Cable from sensor to controller: If <100 ft (30.5 meters) 22 AWG, unshielded If >100 ft (30.5 meters) 22 AWG, shielded Maximum length: 500 feet (152 meters) RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 45 Binary Inputs 3, 5, 8, and 9 are configurable and may be used for Fan Status, Filter Status, Remote Occupancy, or Door Contacts - provided they have not been used for their default functions. • Follow device manufacturer's installation and operating instructions. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 46: Start-Up

    Normal compressor time guards and other staging delays are ignored. • Alarm statuses (except Fire and Safety Chain) are ignored, but all alarms and alerts are still broadcast on the network, if applicable. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 47 Service Test mode does not timeout. Return all test variables to Disable or 0.00. Set Service Test to Disable or cycle power to the RTU Open to return to normal operation. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...

  • Page 48: Configuring The Rtu Open's Properties

    See Appendix A (page 101) for a complete list of the controller's points/properties. NOTE Engineering units shown in this document in the defaults and ranges are strictly for reference. You must enter an integer only. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...

  • Page 49: Sequence Of Operation

    • Heat pump units utilizing a reversing valve output for heating and cooling control • Heat pump unit (Carrier) with an OEM defrost control board • Economizer, CO2, Demand Limiting, and RH control strategies are available for appropriately equipped units •...

  • Page 50: Supply Fan

    Dmpr Pos / DCV Min Pos is used when the fan is at the configured maximum fan speed. The Low Fan Econ Min Pos is used when the fan is at the lowest speed and depends on which value, minimum vfd speed or heating speed, is set lower. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...

  • Page 51: Cooling

    Max Speed Voltage / Max VFD Output) to provide sufficient airflow across the coil and maintain the desired SAT setpoint. The number of setpoints displayed and used depends on the unit type and configuration.The specific setpoint used is based on how many stages of cooling are actively operating. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...

  • Page 52: Economizer

    RTU Open must be in Economizer mode • 30 minutes must elapse since the last time heating or cooling was active • OAT must be < (OAT economizer lockout - 15°F) RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 53: Power Exhaust

    Economizer Exists set to Yes • A local time schedule is configured • The local time schedule is currently unoccupied and the remaining time is less than the configured Purge Time RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 54: Unoccupied Free Cooling

    The system is unoccupied NOTE If the controller does not have a valid outside air temperature, then a constant of 65°F (18.3°C) is used. This value is not adjustable. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 55: Enthalpy Control

    If no enthalpy switch is configured, a network point (Object Name: oae) is available. This point is displayed in the i-Vu® application and an Equipment Touch as Enthalpy (BACnet). RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...

  • Page 56: Indoor Air Co2

    The unit has a valid Supply Air Temperature input • The unit has a valid Space Temperature input • Neither Cool mode nor economizer are active and the time guard between modes has expired RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 57: Supply Air Tempering

    SA Vent / Tempering Setpoint subject to the minimum on timer and anti-recycle timer to protect the equipment from short-cycling and ensure minimum burn time for gas heat. There are fixed one-minute minimum on and off times for the heating output. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...

  • Page 58: Heat Pump Operation

    RTU Open or a value received from the network. Dehumidification The RTU Open provides occupied and unoccupied dehumidification on units that are equipped with the Carrier Humidi-MiZer™ option from the factory. This requires a space relative humidity sensor or a humidistat for control.

  • Page 59: Demand Limiting

    Fire Shutdown Fire Shutdown may be configured on Binary Input 5. A typical application involves a smoke detector or fire shutdown contact, which, when active, immediately shuts down equipment operation. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...

  • Page 60: Compressor Safety

    Compressor Safety may be configured on Binary Input 3. A compressor safety tripped indicator circuit is available on most Carrier rooftop equipment. A Compressor Safety Alarm is shown on Properties page > Control Program tab > Alarms and indicates that the equipment requires attention.
  • Page 61 • If it's a Carrier Heat Pump HP Y1/W1 Ctrl, there is only 1 auxiliary heat stage output and the staging is done by the machine itself. The RTU Open control does not take any action.
  • Page 62 2 are configured identically. Neither input may work reliably and downstream control may be affected, depending on the function duplicated. The alarm clears and normal control is restored when the input function duplication is corrected. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...

  • Page 63: Linkage

    Configuration > Compressor States value is not set to Two Stages. Airside Linkage Alarm - An RTU Open may act as an air source in a zoned system. Carrier systems use a function called Linkage™ to pass data between a master zone and its air source over an MS/TP network connection. When the RTU Open is part of a linked system, it will indicate an airside linkage alarm if it loses communications with its linkage master or if it receives data from more than 1 master zone.
  • Page 64 SAV requires the unit’s fan be controlled by a VFD to provide variable speed fan operation. SAV operation is standard on the Carrier 3-stage LC Weather Expert units but can also be used with other 2-stage heat/cool units. To obtain SAV operation on those units, the Fan Control must be set to Variable Speed. In this mode, the fan runs at the lowest speed possible, saving energy and preventing excessive air from being bypassed during heating or cooling operation.

  • Page 65: Linkage Air Source Mode Determination

    All zone dampers close and local terminal fans are disabled. VENT Air source fan is on and providing ventilation without heating or cooling. See the air source’s installation manual for more specific operation. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 66: Troubleshooting

    Troubleshooting Troubleshooting If you have problems mounting, wiring, or addressing the RTU Open, contact Carrier Control Systems Support. NOTE To help you troubleshoot, obtain a Module Status (Modstat) from the controller and review the System Error and Warning details. Communication LED's The LED's on the RTU Open show the status of certain functions.

  • Page 67: To Get The Serial Number

    Remove the battery from the controller, making note of the battery's polarity. Insert the new battery, matching the battery's polarity with the polarity indicated on the RTU Open. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...

  • Page 68: Compliance

    BACnet Compliance Compliance of listed products to requirements of ASHRAE Standard 135 is the responsibility of BACnet International. BTL ® is a registered trademark of BACnet International. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 69: Appendix A: Rtu Open Points/Properties In I-Vu®/Field Assistant

    Supply Air Temperature – Displays the current supply air temperature. -56 to 245°F (-48.9 to 118.3°C) Outdoor Air Temperature – The outdoor air temperature used for control. -56 to 245°F (-48.9 to 118.3°C) RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 70: Unit Configuration

    Minimum Cooling SAT – In cooling mode, the cooling outputs are controlled so that the 50°F (10°C) supply air temperature does not drop below this value. 45 to 75°F (7.2 to 23.9°C) RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 71 -65 to 80°F (-53.9 to 26.6°C) Economizer High OAT Lockout Temp– The outdoor air temperature above which 75°F (23.9°C) economizer cooling is inhibited. 55 to 80°F (12.7 to 26.6°C) RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 72 Input 2 Function – The type of sensor (4-20 mA) connected to terminals J4 – 1, 2, and No Sensor No Sensor IAQ Sensor OAQ Sensor Space RH Sensor RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 73 Door Contact – Sets occupancy using a hardware contact. IGC Override – Monitors the flame output from the Integrated Gas Control board. The input detects if a flame is still present after heating has been disabled. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...
  • Page 74 Address - Enter the DIP switch settings that are on the additional ZS sensors (up to 5 total) or RnetID assigned to each wireless sensor in SensorBuilder • Lock Display - Check to make the sensor display-only RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 75 Value, in order to calibrate an individual ZS or wireless sensor's sensed value. • Combination Algorithm - Use Average, Maximum, or Minimum zone temperature to calculate the Corrected Value for temperature control. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 76 WS Signal Strength % — Displays radio signal strength of the wireless space temperature sensor. If there are multiple wireless sensors, it displays the lowest value. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 77 Outdoor Air Temp Calibration – A calibration offset value allows the outdoor air 0°F/C temperature sensor to be adjusted to match a calibrated standard measuring the -9.9 to 10 °F temperature in the same location. (-5.5 to 5.5 °C) RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 78: Setpoints

    Occupied Heating – Green 70°F (21.1°C) 69°F 68°F 66°F The heating setpoint the controller maintains while in occupied (20.5°C) (20°C) (18.9°C) 40 to 90°F mode. (4.4 to 32.2°C) RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 79 40 to 90°F (4.4 to 32.2°C) Unoccupied Cooling – Gray 90°F (32.2°C) The cooling setpoint the controller maintains while in unoccupied mode. 45 to 99°F (7.2 to 37.2°C) RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 80 100°F (37.7°C) cooling system must run constantly to maintain comfort. This information is available in -100 to 150°F ASHRAE publications and most design references. (-73.3 to 65.5°C) RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 81 LtBlue – The amount the zone’s learned heating capacity is adjusted when the Learning 0.0600 .0333 Adaptive Optimal Start algorithm runs, when the zone’s thermographic color at 0 to 1 occupancy is light blue. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 82 (Display name: BAS On/Off, in Properties > Control Program > Maintenance > Occupancy > BAS On/Off. or when utilizing Airside Linkage or the System Occupancy Network Variable. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...
  • Page 83 SA Vent / Temper Setpoint – The setpoint to energize one heat stage and, therefore, 60°F (15.6°C) temper the supply air in low fan-speed situations. 40 to 75°F (4.4 to 23.9°C) RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 84 Setpoint Adjust. Edit Increment – Amount of offset in degrees for each press of the up or down arrows on the ZS or wireless sensor for setpoint adjustment. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 85: Alarm Configuration

    160°F (71.1°C) generate a Supply Air Temp Alarm. There is a fixed hysteresis of 3 °F (1.6 °C) for 90 to 175°F return to normal. (32.2 to 79.4°C) RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 86 Space Temperature High/Low Alarm – If set to display, shows the alarm indicator on Ignore the communicating zone sensors with display, if the space temperature sensor exceeds Ignore/Display the high or low alarm limit. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 87 Supply Fan Runtime Alarm – If set to display, shows the Maintenance or Fault indicator Ignore on the communicating zone sensors with display, if the supply fan runtime exceeds the Ignore/Display value of the Supply Fan Service Alarm Timer. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 88: Service Configuration

    HP O/B Ctrl – Heat Pump application, uses reversing valve output to control heating HP Y1/W1 Ctrl and cooling. HP Y1/W1 Ctrl – Carrier Heat Pump application only. Compressor Stages – The number of mechanical cooling stages. One Stage Not displayed if Unit Type is set to LC WeatherExpert™.
  • Page 89 0 to 9999 ppm System Space Temperature – The network space temperature value that the controller -999.00° is using for control (if applicable). RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 90 Heat 1 Test – Enable to test the controller's heat 1 output. Service Test must be set to Disable Enable. Disable/Enable Heat 2 Test – Enable to test the controller's heat 2 output. Service Test must be set to Disable Enable. Disable/Enable RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 91: Maintenance

    Indicates the current status of the system: Inactive/Active Temp Compensated Start Learning Adaptive Start Pre-Occ Purge – Indicates if the pre-occupancy purge cycle is active. Inactive/Active RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 92 Outdoor Air Temperature Source – The source of the outdoor air temperature. Local Network Linkage Locked Value System Cooling Demand Level – The demand limit used by the control in cooling mode. 0 to 3 RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 93 Reset Comp 1 Runtime Alarm – Set to Clear to reset Compressor 1 Runtime to 0. Run/Clear Reset Comp 2 Runtime Alarm – Set to Clear to reset Compressor 2 Runtime to 0. Run/Clear RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 94 Filter Runtime – The total number of hours that the unit has been operating since the __ hr runtime was last reset to 0 using Reset Filter Runtime Alarm. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 95: Performance

    Economizer Utilization – Percentage of Equipment Runtime hours, above active 0 to 100% Economizer time, which occurred in the previous period that was prior to the last Performance Data reset. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 96: Alarms

    Visible only in an alarm condition. Alarm Limit Exceeded – The alarm limit that the alarming space temperature sensor The configured limit exceeded. Visible only in an alarm condition. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 97 Failed to Fully Open Failed to Open Failed to Close Stuck Open Normal/Alarm Outdoor Air Quality Sensor – Indicates if the outdoor air quality (CO ) sensor fails. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 98: Linkage

    Number of Providers – Must be set to 0. Input Values – Indicates the maximum number of parameters in the collector array for each device. (Display only) RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 99 Linkage Optimal Start The following information is sent back to the Zoning System Master Zone: Air Source Mode Air Source Supply Air Temp Air Source Outdoor Air Temp RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 100: I/O Points

    SPT Sensor - (For the SPT Standard, SPT Plus, and SPT Pro sensors only). Sensor configurations on the microblock's Properties > Details tab are listed below. For more information, see the Carrier Sensors Installation Guide. input 1 – Input Channel 1; 4 - 20 mA only. User-configurable for IAQ, OAQ, or Space Relative Humidity.
  • Page 101 Display Resolution – Defines the resolution of the value to be displayed on the sensor. For example, 1 displays only integers (e.g., 74) and 0.5 displays values 1000 to the nearest 0.5 (e.g., 74.5). 0.01 0.001 RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 102 Dehum - Relay 6 – Binary Output 6; Humidi-MiZer™ Output. Y3 - Relay 7 – Binary Output 7; Reversing Valve Output or High Speed Fan Output or Y3. PE - Relay 8 – Binary Output 8; Power Exhaust Output. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...

  • Page 103: Appendix B: Single Point Linkage And Device Address Binding

    BACnet address invokes the SPL function. These addresses cause the controller to issue a BACnet “who has” command for this variable. The controller binds to the closest of the first 5 devices from which it receives a valid response. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...

  • Page 104: Device Address Binding

    You can implement DAB on network points with an undefined BACnet address, displayed in Field Assistant and the i-Vu® interface on the Properties page > Network Points tab. See example below. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide...

  • Page 105: Appendix C: Rtu Open Points/Properties On The Equipment Touch

    Current setpoints • Mode • Occupancy • OAT, if available Allows: • Pushbutton Override • Space Setpoint Offset Adjustment Click on the right to navigate to Snapshot screen. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 106 You can configure Show/Hide conditions for values on Configuration the following screens: • Standby • Home • Snapshot NOTE Only displayed when logged in with the Factory or Admin password. (See above.) RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 107: Startup Wizard

    HP O/B Ctrl – Heat Pump application, uses reversing valve output to control heating HP Y1/W1 Ctrl and cooling. HP Y1/W1 Ctrl – Carrier Heat Pump application only. Heat Type – The type of heating used by the unit. Electric Electric/Gas Heat Stages –...
  • Page 108 Door Contact – Disables mechanical cooling and electric or gas heating, when active. Input 5 Switch Configuration – The normal (de-energized) state for the set of contacts terminated at Input 5. NO/NC (normally open/normally closed) RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 109: Status - Equipment Touch

    Supply Fan Status – The current fan status if an input is configured for Fan Status. Off/Running Fan / Speed – The current commanded fan speed if Fan Control is set to Two Speed. Off/Low/High RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 110: Unit Configuration - Equipment Touch

    Power Fail Restart Delay – How long the controller delays normal operation after the 5 sec power is restored. Typically used to prevent excessive demand when recovering from a 0 to 30 sec power failure. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 111 Purge Time – The maximum amount of time used for a pre-occupancy purge. 60 minutes 0 to 240 minutes Unocc Free Cool – Enables or disables the use of the economizer to provide unoccupied Disable free cooling (NTFC). Disable/Enable RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 112: Setpoints - Equipment Touch

    0 to 99 the space temperature is above the occupied cooling setpoint (including any setpoint offset). RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 113: Alarm Configuration - Equipment Touch

    160°F (71.1°C) generate a Supply Air Temp Alarm. There is a fixed hysteresis of 3 °F (1.6 °C) for 90 to 175°F return to normal. (32.2 to 79.4°C) RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 114: Maintenance - Equipment Touch

    Optimal Start to Demand Limit. System Cooling Demand Level – The demand limit used by the control in cooling mode. 0 to 3 RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 115 0 to 240 minutes Schedule – The controller's occupancy status based on the local schedule. Unoccupied/Occupied Airside Linkage Airside Linkage Status WARMUP HEAT COOL FREECOOL PRESSURIZE EVAC VENT NOT ACTIVE RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 116: Performance - Equipment Touch

    Recorded High OAT – Maximum recorded OAT since the last reset of Performance __°F/C Data. Recorded Low OAT – Minimum recorded OAT since the last reset of Performance Data. __°F/C RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 117: Alarms - Equipment Touch

    Indoor Air Quality Sensor – Indicates that a valid indoor air quality sensor or sensor Normal/Alarm value is no longer available to the controller. RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 118 Compressor 2 Runtime – Indicates if the compressor 1 runtime exceeds the value of Normal/Alarm the Compressor 2 Service Alarm Timer. Airside Linkage – Indicates if Linkage has failed in a zoned system using Linkage. Normal/Alarm RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...

  • Page 119: Document Revision History

    Important changes to this document are listed below. Minor changes such as typographical or formatting errors are not listed. Date Topic Change description Code* No changes yet. New document. * For internal use only RTU Open v5 CARRIER CORPORATION ©2018 Installation and Start-up Guide All rights reserved...
  • Page 122 CARRIER CORPORATION ©2018 A member of the United Technologies Corporation family · Stock symbol UTX · Catalog No. 11-808-696-01 · 6/8/2018...

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