Carrier RTU OPEN 11-808-427-01 Especificaciones

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Introduction 4 RTU Open Environmental operating range -40 to 158°F (-40 to 70°C), 10–95% relative humidity, non-condensing NOTE Controllers shou

RTU Open 5 To install the RTU Open: 1 Mount the controller (page 6). 2 Wire the controller for power (page 7). ○ Using the rooftop equipment

Installation 6 RTU Open To mount the RTU Open When you handle the RTU Open: • Do not contaminate the printed circuit board with fingerprints

RTU Open 7 Screw the RTU Open into an enclosed panel using the mounting slots on the cover plate. Leave about 2 in. (5 cm) on each side of the co

Installation 8 RTU Open Using the rooftop equipment control power transformer 1 Remove power from the 24 Vac transformer. 2 Remove connector

RTU Open 9 Optional * Safety chain devices, field-installed - normally closed. Apply 24 Vac to this terminal (jumper from J1 - 1 to J1 - 9)

Installation 10 RTU Open 1 Turn off the RTU Open's power. The controller reads the address each time you apply power to it. 2 Using the ro

RTU Open 11 Wiring the RTU Open to the MS/TP network The RTU Open communicates using BACnet on an MS/TP network segment communications at 9600 bp

Installation 12 RTU Open 6 Insert the power screw terminal connector into the RTU Open's power terminals. 7 Verify communication with the

RTU Open 13 Channel Number Type Signal Function Part Number Wire/Terminal Numbers Alternate Terminals BO - 2 BO N/A - Relay Heat 2 (W2) Output N/

Installation 14 RTU Open Inputs These RTU Open inputs accept the following signal types: These inputs... Support this signal type... Descr

RTU Open 15 4 Set the appropriate jumpers on the RTU Open. J3 AO - 1 0 - 10 Vdc/4-20 mA W1 Battery Jumper In (Do not remove) W2 Format Jumper*

Installation 16 RTU Open J4 Inputs 1 Turn off the RTU Open's power. 2 Connect the input and output wiring to the screw terminals on the

RTU Open 17 NOTE J5 binary inputs 3, 5, and 8 are the same input channels as: ○ J1 wire 2, J5 - Input - 3 (Compressor Safety) ○ J1 wire 10, J

Installation 18 RTU Open NOTE Output relay contacts rated at 3A, 24V maximum. Install pilot relays required by application. NOTE J20 Analog

RTU Open 19 Field-supplied sensor hardware The RTU Open controller is configurable with the following field-supplied sensors: Sensor Part number

Installation 20 RTU Open Wiring an SPT sensor The RTU Open is connected to a wall-mounted space temperature sensor to monitor room temperature.

RTU Open 21 Voltage 300 Vac, power limited Listing UL: NEC CL2P, or better To wire the SPT sensor to the controller 1 Partially cut, then

Installation 22 RTU Open Wiring a Supply Air Temperature sensor Part #33ZCSENSAT The RTU Open requires a temperature sensor installed in the su

RTU Open 23 Wiring specifications Cable from sensor to controller: If <100 ft (30.5 meters) 22 AWG, unshielded If >100 ft (30.5 m

RTU Open i Table of Contents Introduction ...

Installation 24 RTU Open Wiring specifications Cable from sensor to controller: If <100 ft (30.5 meters) 22 AWG, unshielded If >1

RTU Open 25 Wiring specifications Cable from sensor to controller: If <100 ft (30.5 meters) 22 AWG, unshielded If >100 ft (30.5 m

Installation 26 RTU Open Wiring diagram for #33ZCT55/56CO2: Wiring an Outdoor Air Quality sensor Part #33ZCSPTCO2LCD-01 (Display model

RTU Open 27 Wiring specifications Cable from sensor to controller: If <100 ft (30.5 meters) 22 AWG, unshielded If >100 ft (30.5 m

Installation 28 RTU Open Wiring specifications Cable from sensor to controller: If <100 ft (30.5 meters) 22 AWG, unshielded If >1

RTU Open 29 Wiring specifications Cable from sensor to controller: If <100 ft (30.5 meters) 22 AWG, unshielded If >100 ft (30.5 m

Installation 30 RTU Open Wiring specifications Cable from sensor to controller: If <100 ft (30.5 meters) 22 AWG, unshielded If >1

RTU Open 31 Wiring diagram for factory-installed enthalpy switch: NOTE Factory-installed enthalpy switches terminate at J2 wires 6 (switch i

Installation 32 RTU Open To wire an enthalpy switch (differential) to the controller Wiring diagram for optional enthalpy sensor mounted in the

RTU Open 33 To wire a status switch to the controller NOTES • Binary inputs 3, 5, 8, and 9 are configurable and may be used for Fan Status, Fil

Table of Contents ii RTU Open Wiring a status switch ...

Installation 34 RTU Open To wire a compressor safety input to the controller NOTES • An isolation relay may be required if the RTU Open is po

RTU Open 35 To wire an occupancy switch or door contact NOTES • Binary Inputs 3, 5, 8, and 9 are configurable and may be used for Fan Status,

Start-up 36 RTU Open To start up the RTU Open, you need one of the following user interfaces to the controller. These items let you access the co

RTU Open 37 Service Test Navigation: i-Vu / Field Assistant: BACview: Properties > Equipment > Configuration > Service Configuration >

Start-up 38 RTU Open • Use Power Exhaust Test to activate and deactivate the power exhaust (BO - 8) output. • Use Economizer Test to set the (A

RTU Open 39 Point Name/Description Default/Range Input 2 Function – The type of sensor (4-20 mA) connected to terminals J4 – 1, 2, & 3. D: R

Start-up 40 RTU Open Point Name/Description Default/Range Input 9 Switch Configuration – The normal (de-energized) state for the set of contacts

RTU Open 41 Point Name/Description Default/Range Optimal Start – The number of hours prior to occupancy, at which the Optimal Start function may

Start-up 42 RTU Open Point Name/Description Default/Range Continuous Occupied Exhaust – Configures the exhaust fan control strategy (BO-8). If Ye

RTU Open 43 The RTU Open supports various types of constant volume air source configurations: • Standard heat/cool unit types with up to 2-stage

Table of Contents RTU Open iii Linkage ...

Sequence of Operation 44 RTU Open Supply fan The RTU Open supply fan may be configured for 1 of 3 Fan Modes: • Auto - The fan cycles on/off in co

RTU Open 45 The cooling relays are controlled by the Cooling Control PID Loop and Cooling Stages Capacity algorithm. They calculate the desired n

Sequence of Operation 46 RTU Open Power Exhaust The RTU Open may enable and disable an exhaust fan, based on either the controller’s occupancy or

RTU Open 47 The actual equation that the controller uses to calculate Optimal Start is nonlinear. An approximation of the result is shown below.

Sequence of Operation 48 RTU Open The following conditions must be true for the Indoor Air CO2 algorithm to operate: • The system is occupied •

RTU Open 49 Heat Pump operation The RTU Open can control heat pumps HP O/B and Y1/W1. HP O/B provides a separate output (BO-7) to control a rever

Sequence of Operation 50 RTU Open Demand Limiting The RTU Open may employ a demand limit strategy. Demand limiting in the RTU Open works through

RTU Open 51 Fan Status Fan Status may be configured on any unused binary input channel. A typical application would be an airflow switch, curren

Sequence of Operation 52 RTU Open Space Temp Sensor – This alarm indicates an invalid sensor condition in a physically connected space temperatur

RTU Open 53 High Space Relative Humidity - The RTU Open generates this alarm when the space humidity exceeds the Alarm Configuration > High Sp

Sequence of Operation 54 RTU Open • zone temperature • relative humidity • CO2 level • damper position • optimal start data The VVT Master p

RTU Open 55 If no heating or cooling is required or the current air source mode is satisfied, the VVT Master calculates the weighted average of t

Troubleshooting 56 RTU Open If you have problems mounting, wiring, or addressing the RTU Open, contact Carrier Control Systems Support. Seria

RTU Open 57 If Run LED shows... And Error LED shows... Status is.. 7 flashes per second 7 flashes per second, alternating with Run LED Ten secon

Compliance 58 RTU Open FCC Compliance This equipment has been tested and found to comply with the limits for a Class A digital device, pursuan

RTU Open 59 NOTE Engineering units shown in this document in the defaults and ranges are strictly for reference. You must enter an integer only.

Appendix A: RTU Open Points/Properties 60 RTU Open Unit Configuration Navigation: i-Vu / Field Assistant: BACview: Properties > Equipment &g

RTU Open 61 Point Name/Description Default/Range HP Rev Cycle Lockout Temp – The outdoor air temperature at which reverse cycle heating is locked

Appendix A: RTU Open Points/Properties 62 RTU Open Point Name/Description Default/Range Input 5 Switch Configuration – The normal (de-energized)

RTU Open 63 Setpoints Navigation: i-Vu / Field Assistant: BACview: Properties > Equipment > Configuration > Setpoints HOME > CONFIG

RTU Open 1 What is the RTU Open controller? The RTU Open controller is available as an integrated component of a Carrier rooftop unit, or as a fie

Appendix A: RTU Open Points/Properties 64 RTU Open Default Range: -40 to 245°F Demand Level Point Nam

RTU Open 65 Point Name/Description Default/Range Heating Capacity – Used for Optimal Start, this is the rate at which the zone temperature cha

Appendix A: RTU Open Points/Properties 66 RTU Open Effective Setpoints The Effective Setpoints graph shows the current occupied or unoccupied s

RTU Open 67 Alarm Configuration Navigation: i-Vu / Field Assistant: BACview: Properties > Equipment > Configuration > Alarm Configurati

Appendix A: RTU Open Points/Properties 68 RTU Open Point Name/Description Default/Range Occupied High CO2 Alarm Limit – The value that the CO2 s

RTU Open 69 Point Name/Description Default/Range System Space Temperature – The network space temperature value that the controller is using for

Appendix A: RTU Open Points/Properties 70 RTU Open Maintenance Navigation: i-Vu / Field Assistant: BACview: Properties > Equipment > Main

RTU Open 71 Point Name/Description Default/Range BAS On/Off – Determines the occupancy state of the controller and can be set over the network b

Appendix A: RTU Open Points/Properties 72 RTU Open Point Name/Description Range Supply Air Temp Sensor – Indicates if the supply air temperature

RTU Open 73 Linkage Navigation: i-Vu / Field Assistant: BACview: Properties > Equipment > Linkage Properties > Equipment > Linkage

Introduction 2 RTU Open

Appendix A: RTU Open Points/Properties 74 RTU Open Point Name/Description input 11 – Input Channel 11; 100K Potentiometer only. Setpoint adjust

RTU Open 75 Single Point Linkage The RTU Open receives data from other Open controllers when they are installed as part of an Open system. The da

Appendix B: Single Point Linkage and Device Address Binding 76 RTU Open Device Address Binding As described previously, Device Address Binding al

Index RTU Open 77 # #CRSTATUS005A00 • 32 #33CSENTHSW • 29 #33ZCSENCO2 • 24, 26 #33ZCSENOAT • 23 #33ZCSENSAT • 22 #33ZCSENSRH-02 • 27 #33ZCT55CO2

Index 78 RTU Open Heating Lockout Temperature • 60 High CO2 alarm • 71 High SAT Alarm Limit • 67 High Space Humidity Alarm Limit • 67 High Space Re

Index RTU Open 79 Linkage Air Source Modes • 55 Occupancy • 43 Optimal Start • 46 Power Exhaust • 46 Remote occupancy • 50 Supply Fan • 44 Unoccu

CARRIER CORPORATION ©2012 A member of the United Technologies Corporation family · Stock symbol UTX · Catalog No. 11-808-427-01 · 6/13/201

RTU Open 3 Specifications Driver drv_rtuopn_std Power 24 Vac ±10%, 50–60 Hz 20 VA power consumption (26 VA with a BACview device attached) 26