ruskin rooftop systems (rrs) economizer advanced model

Ruskin Rooftop Systems (RRS)Economizer Advanced Model Product

Data and Installation GuideIntroductionThe RRS® Economizer Controller controls outside air (OA) intake for a building space and reducesthe use of mechanical cooling. The controller also monitors and controls the indoor air quality(IAQ), modulated power exhaust, differential demand control ventilation (DCV), minimum OA flowcontrol, and building static pressure (BSP).The control application monitors outdoor and indoor conditions and compares them to theconfiguration parameters to determine the proper operating mode.

Features and benefits

Control strategies

You can use the RRS Economizer controller to configure control strategies that includetemperature, fresh air flow, and demand ventilation control for the outdoor air damper.Additional logic provides options to control the building static pressure.

Alarm generation

The controller routes event messages to building operators for rapid fault diagnosisand response. If you use the Mobile Access Portal (MAP) Gateway as an interface to thecontroller, you can also create an audit trail for detailed analysis.

LCD and intuitive configuration menu

You can access the intuitive configuration menu through the integrated LCD and use it as asimple, local UI for commissioning and startup that requires no additional hardware.

Self-tuning PRAC control loops

The controller uses a Johnson Controls® patented algorithm, pattern recognition adaptivecontrol (PRAC+), to tune its PI feedback loops. The PRAC+ algorithm automatically adjuststhe proportional band and the integral time of a PI control loop. The adjustments are basedon patterns of the sensed values from the process variable, the setpoint, and the output ofa PI control loop. You can use PRAC+ to reduce commissioning time for new control systemsand to reduce the motor runtime, which increases the lifetime of the actuator.

Mobile Access Portal (MAP) Gateway interface

The MAP Gateway is a pocket-sized web server that provides an interface to the controller.Use the MAP Gateway to view and adjust system parameters, and to view alarms.

Setup overview

To set up your RRS Economizer controller, perform the following steps:

1. Mount and wire the controller assembly according to the Installation section.

RK-ECO1011-0

LIT-12012173

2019-09-18

2. Install additional sensors. The factory installs the damper actuator and outdoor air sensor.You must install any other sensors and output connections. For the sensor product codes, seeAccessories.

3. Configure the controller using the local display or the Mobile Access Portal (MAP) Gateway.For the available menu options, see Menu structure. For detailed information about how thecontroller operates, see Sequence of operation.

4. Run a self test to verify proper operation according to Self test.

InstallationObserve the following guidelines when you install the Economizer controller:

• Transport the controller in the original container to minimize vibration and shock damage to thecontroller.

• Do not drop the controller or subject it to physical shock.

Parts included

• Economizer Controller Advanced Model (RK-ECO1011-0)

Special tools needed

• For input and output wiring: either several 6 mm (1/4 in.) female spade terminals and a crimpingtool, or several space mounted terminal blocks

• Wiring Harness (RK-WRH1001-0)

Dimensions

The following figure shows the controller dimensions.

Ruskin Rooftop Systems (RRS) Economizer Advanced Model Product Data and Installation Guide2

Figure 1: Back of controller showing extended mounting clips and mounting dimensions, in.(mm)

Mounting

Observe the following location considerations when mounting the controller:

• Ensure that the mounting surface can support the Economizer controller, DIN rail, and any otheruser-supplied enclosure.

• Mount the Economizer on a 35 mm DIN rail whenever possible, see Mounting the controller on aDIN rail.

• If you choose wall-mounting, mount the Economizer on a hard, even surface, in the horizontalmounting position, whenever possible. See Mounting the controller on a wall.

• If necessary, use shims or washers to mount the Economizer securely and evenly on themounting surface.

• Mount the Economizer controller in an area where the ambient conditions are within the limitsdescribed in the Technical Specifications section, and that is free of corrosive vapors.

• Provide for sufficient space around the Economizer controller for cable and wire connections andadequate ventilation through the controller. As best practice, leave at least 50 mm (2 in.) on thetop, bottom, sides, and front of the controller.

• Do not mount the controller on surfaces prone to vibration, such as duct work, or in areaswhere electromagnetic emissions from other devices or wiring can interfere with controllercommunication.

Mounting the controller on a DIN rail

About this task:

3Ruskin Rooftop Systems (RRS) Economizer Advanced Model Product Data and Installation Guide

DIN rail mounting is the preferred mounting method. To mount the controller on a 35 mm DIN rail,complete the following steps:

1. Securely mount a 20 cm (8 in.) or longer section of a 35 mm DIN rail horizontally and centeredin the space where you want to mount the controller. This way, the controller mounts in thehorizontal position shown in the following figure.

Figure 2: Horizontal mounting position

2. On the back of the controller, pull the two bottom mounting clips outward (down).

Figure 3: Pull down lower mounting clips

3. Place the controller on the DIN rail.4. Push the bottom mounting clips inward (up) to secure the controller on the DIN rail.


Figure 4: Push up lower mounting clips

To remove the Economizer from the DIN rail, pull the bottom mounting clips out to the extendedposition and carefully lift the controller off the DIN rail.

Mounting the controller on a wall

About this task:To mount an Economizer directly on a wall or other flat vertical surface, complete the followingsteps:

1. Pull the two bottom mounting clips outward and ensure they are locked in the extendedpositions.

2. Mark the three mounting hole locations on the wall using the dimensions in Figure 1. Mark thelocations according to one of the mounting positions in the following figures. You can hold thecontroller up to the wall or surface in the proper mount position and mark the hole locationsthrough the mounting clips.

Figure 5: Horizontal mounting position, preferred for wall mounting


Figure 6: Vertical mounting position, acceptable for wall mounting

3. Drill holes in the wall at the marked locations. If necessary, insert appropriate wall anchors inall three holes.

4. Hold the Economizer in place, and insert the screws through the mounting clips and into theholes. Carefully tighten all of the screws.Important: Do not overtighten the mounting screws. Overtightening the screws may damagethe mounting clips.

Wiring

WARNING

Risk of Electric ShockDisconnect the power supply before making electrical connections. Contact with components carryinghazardous voltage can cause electric shock and may result in severe personal injury or death.

AVERTISSEMENT

Risque de décharge électriqueDébrancher l'alimentation avant de réaliser tout branchement électrique. Tout contact avec descomposants conducteurs de tensions dangereuses risque d'entraîner une décharge électrique et deprovoquer des blessures graves, voire mortelles.

1. Connect the sensors to the inputs on the Economizer controller.

2. Use spade connectors to terminate the inputs and outputs with the spade termination, seeTable 3.


Note: Temperature inputs accept a 10k thermistor type 2 sensor. Humidity inputs accept a0 VDC to 10 VDC sensor.

3. Use the Economizer wiring harness to connect the I/O with the pin connector termination type.

WARNING

Risk of Electric Shock and Property DamageInsulate and secure each unused wire lead before applying power to the economizer. Failure to insulateand secure each unused wire lead may result in property damage, electric shock, and severe personalinjury or death.

AVERTISSEMENT

Risque de décharge électrique et dégâts matérielsIsoler et protéger chaque fil non utilisé avant de mettre l'economizer sous tension. Le non-respectde cette obligation d'isolation et de protection de chaque fil non utilisé risque d'entraîner des dégâtsmatériels, des décharges électriques et des blessures graves, voire mortelles.

4. Install the sensors in the appropriate air stream (Figure 9).

Table 3 describes the Economizer controller point types.


Figure 7: Rooftop unit wiring example

Table 1: Rooftop unit wiring exampleCallout Description1 Wiring harnesses2 CD-P1000-00-00 duct CO2 sensor3 AD-1272 OA flow sensor4 CD-W00-00-2 zone CO2 sensor5 24 VAC coil of exhaust fan or Energy Recovery Ventilator (ERV) relay or contactor6 M9205-GGA-EC01 actuator7 Rooftop unit control board8 Conventional thermostat


Figure 8: Heat pump wiring example

Table 2: Heat pump wiring exampleCallout Description1 Wiring harnesses2 CD-P1000-00-00 duct CO2 sensor3 AD-1272 OA flow sensor4 CD-W00-00-2 zone CO2 sensor5 24 VAC coil of exhaust fan or ERV relay or contactor6 M9205-GGA-EC01 actuator7 Heat pump control board8 Conventional thermostat


Figure 9: Sensor placement example

Table 3: Economizer controller terminationsName Description Type Termination Type

Analog Inputs (AIs)SAT Supply Air Temperature, C

Sensor product code: TE-636GV-2

Resistive Spade

RAT Return Air Temperature, C

Sensor product code: HE-69630NS-2

Resistive Spade

OAT Outdoor Air Temperature, C


Resistive Spade

OAH Outdoor Air Humidity, R, C


0 VDC to 10 VDC Spade

RAH Return Air Humidity, R, C


0 VDC to 10 VDC Spade

IAQ Indoor Air Quality Input, R, C

Sensor product code: CD-W00-00-2

0 VDC to 10 VDC Pin Connector

BPS Building Pressure Input, R, C 0 VDC to 10 VDC SpadeOAF Outdoor Air Flow, R, C 0 VDC to 10 VDC Pin ConnectorOAQ Outdoor Air Quality, R, C

Sensor product code: CD-P1000-00-00

0 VDC to 10 VDC Pin Connector

DFB Damper Feedback Position, C 0 VDC to 10 VDC, or2 VDC to 10 VDC

Pin Connector

Analog Outputs (AOs)DMP Damper Output

Damper actuator product code:M9205-GGA-EC01

0 VDC to 10 VDC, or2 VDC to 10 VDC

Pin Connector

PE VFD PE VFD Output, C 0 VDC to 10 VDC Spade


Table 3: Economizer controller terminationsName Description Type Termination Type

Binary Inputs (BIs)Y1 Y1 Status 24 VAC Pin ConnectorY2 Y2 Status 24 VAC Pin ConnectorW1 W1 Status or O/B Status 24 VAC Pin ConnectorSD Shutdown Status 24 VAC Pin ConnectorPRG Purge Status 24 VAC Pin ConnectorOCC OCC Status 24 VAC Pin ConnectorBinary Outputs (BOs)ALM Alarm Output, Alarm COM Relay (dry contact) SpadeY1O Cooling Stage 1 Relay (24 VAC) Pin ConnectorY2O Cooling Stage 2 Relay (24 VAC) Pin ConnectorERV-EXH Exhaust Fan/ERV Output Relay (24 VAC) Pin ConnectorAdditional TerminationsR R (24 VAC Class 2 Supply) 24 VAC Spade and Pin

ConnectorC C (24 VAC Class 2 Common) 24 VAC Spade and Pin

ConnectorSA Bus SA Bus RS-485 Comm Spade

AccessoriesTable 4: AccessoriesProduct code number DescriptionTE-636GV-2 Duct temperature sensorHE-69630NS-2 Temperature and humidity sensorTE-6363P-1 Outside air temperature sensorM9205-GGA-EC01 Damper actuatorCD-W00-00-2 Space CO2 sensor

Note: It is best practice to install this sensor.

CD-P1000-00-00 Duct CO2 sensorRK-WRH1001-0 Wiring harnessNSB8BTN241-0 Zone temperature sensor with fault code display capability, no logo,

whiteNSB8BTN243-0 Zone temperature sensor with fault code display capability, no logo,

black

Powering the unitWhen you apply 24 VAC power to the C and R terminals (on the upper right side of the unit), thecontroller begins a start-up sequence.


During the start-up sequence, the LCD displays a start-up text and a countdown. The buttons arenot functional. The following table shows the status of the LEDs during the start-up sequence.Table 5: LED status during start-upLED StatusPower (green) On steady if the C and R terminals receive powerFault (red) Blink

SA Bus (green)

For approximately 10 seconds: On steady

After approximately 10 seconds:• Blink: Normal communication

• On steady: Communication lost

After the start-up sequence finishes, the display is blank on both lines if no alarm is active. The redFault LED turns off.

Menu structureThe following section describes the menus and submenus for the RRS Economizer controller. TheLevel 1 menus are the following:

• Setup

• Status

• Advanced Setup

• Advanced Status

• Controller

• Update

• Self Test

• View Results

Each menu and the submenus are detailed below.Note: The parameters that appear in your menu are based on the equipment configuration.See Table 16 for a list of the conditions that determine whether a menu item is visible.

Understanding the local LCD

After you apply power to your rooftop unit (RTU), a start-up countdown begins on the EconomizerLCD. When the controller is ready, the screen is blank to indicate that no faults are present. Use thepush buttons next to the LCD to navigate through the menus.

Figure 10: LCD and buttons on the Economizer


Each menu item is either a submenu or a property. To move the cursor, press the up and downarrow buttons. To select an item, press the right arrow button. To go back to the previous item,press the left arrow button.To modify the value of a property, press the right arrow button to select the property, and thenpress the up and down arrow buttons to select a new value.

Setup menu

Table 6: Setup menuLevel 2 on MAP Gateway (on LCD) Default values Available valuesLanguage English English, French, SpanishInstall Month 1 1 to 12Install Day 1 1 to 31Install Year 2019 2015 to 2030Units IP IP, SIEquipment Type Conv RTU Conv RTU, Heat PumpThermostat Type W W, B, ONumber of Cooling Stages Installed (Comp Stages) 1 1 to 2Fan Control Type Single Speed Single Speed, Two SpeedDry Bulb Setpoint (Dry Bulb Stpt) 68°F 35°F to 86°FEconomizer Outdoor Air Enthalpy Setpoint (OA Enth Setpt) 27 BTU/lb Dry Air 10 BTU/lb to 50 BTU/lb Dry AirEconomizer Minimum Position Setpoint (Damper Min Pos) 10% 0% to 100%Economizer Damper Minimum Position Low Speed Fan (LowSpd Min Pos)

45% 0% to 100%

Exhaust Setup None None, Non-modulating Control,Variable Frequency Fan, ERV

Economizer Damper Position for Exhaust Fan to Turn On(Damper % Fan On)

60% 0% to 100%

Economizer Damper Position for Exhaust Fan to Turn Off(Damper % Fan Off)

20% 0% to 100%

Damper Position for Exhaust Fan to Turn Off Low Speed Fan(Damper % Fan Off Lo Spd)

40% 0% to 100%

Damper Position for Exhaust Fan to Turn On Low Speed Fan(Damper % Fan On Lo Spd)

80% 0% to 100%

Damper Position for Exhaust Fan to Turn Off High Speed Fan(Damper % Fan Off Hi Spd)

20% 0% to 100%

Damper Position for Exhaust Fan to Turn On High Speed Fan(Damper % Fan On Hi Spd)

60% 0% to 100%

Demand Ventilation Mode of Operation (Vent Mode) Disabled Disabled, Controlled by IAQ, Diffbetween IAQ and OAQ

Demand Ventilation Indoor Air Quality Setpoint (Vent IAQStpt)

1000 ppm 0 ppm to 2000 ppm

Relearn SystemRelearns the sensors connected to the controller.

False True, False

Status menu

Table 7: Status menuLevel 2 on MAP Gateway (on LCD) DescriptionUnit Status Displays the overall status of the unitEconomizer Status (Econ Status) Displays the status of the Economizer damper controlEcon Free Cooling Available (Free Clg Avail) Displays whether free cooling is available. Possible values: Yes, No.Economizer Damper % Command (DamperCommand)

Displays the damper command percentage. Default value: 15%.


Table 7: Status menuLevel 2 on MAP Gateway (on LCD) DescriptionEconomizer Damper Position (Damper Feedback) Displays the percentage reading from the damper feedback sensor.Supply Air Temperature (Supply Temp) Displays the reading from the SAT sensor, in the range of -40°F to

150°F.Outdoor Air Temperature (Outdoor Temp) Displays the reading from the OAT sensor, in the range of -40°F to

140°F.Outdoor Humidity Displays the percentage reading from the OAH sensor in the range

of 5% to 100%.Outdoor Air Enthalpy Displays the OA enthalpy.Return Air Temperature (Return Temp) Displays the reading from the RAT sensor, in the range of 0°F to

140°F.Return Air Humidity (Return Humidity) Displays the percentage reading from the RAH sensor, in the range

of 5% to 100%.Return Air Enthalpy Displays the RA enthalpy.Occupancy Displays the reading from the occupancy sensor. Possible values:

Occupied, Unoccupied.Comp Status Displays the overall compressor status.Compressor Stage 1 Command (Compressor 1) Displays the compressor stage 1 command.Compressor Stage 2 Command (Compressor 2) Displays the compressor stage 2 command.Y1-Thermostat (Y1-Tstat) Displays the thermostat Y1 status.Y2-Thermostat (Y2-Tstat) Displays the thermostat Y2 status.W1-Thermostat (W1-Tstat) Displays the thermostat W1 status.Exhaust Fan Status (Exhaust Status) Displays the exhaust fan status.ERV Status Displays the ERV status.Exhaust Fan Command (Exhaust Fan) Displays the exhaust fan command. Possible values: Off, On.Exhaust Fan VFD % Command (Exhaust Command) Displays the exhaust fan VFD command percentage.Building Static Pressure (Bldg Pressure) Displays the reading from the BSP sensor in the range of -0.25 in.

W.C. to 0.25 in. W.C.

Advanced Setup menu

Table 8: Advanced Setup menuLevel 2 on MAP Gateway (on LCD) Default values Available valuesEconomizer Enabled for Operation (Econ Enable) Yes Yes, NoSupply Temp Stpt 55°F 38°F to 70°FDamper Min Value 2 VDC 0 VDC to 2 VDCFeedback Min Value 2 VDC 0 VDC to 2 VDCFree Cooling Selection (Free Clg Select) Auto Dry Bulb, Single Enthalpy, Dual

Enthalpy, AutoFault Detection Enable (Fault Detect En) Enable Enable, DisableLow Ambient Enabled (Lo Ambient En) Yes Yes, NoLow Ambient Economizer Setpoint (Lo Ambient Stpt) 32°F 0°F to 60°FLow Ambient Economizer Minimum Position (Lo Amb MinPos)

0% 0% to 80%

OAT Cooling Cutout Enabled (ClgOATCutout-En) No Yes, NoOAT Cooling Cutout (ClgOATCutout) 45°F -45°F to 80°FExcessive SAT Setpoint (Excess SAT Stpt) 44°F 35°F to 135°FHigh Limit Shutoff (High OA Shutoff) 75°F 0°F to 86°FDemand Ventilation Maximum Economizer Position (VentMax Pos)

50% 0% to 100%

DCV Econ Dmpr Min Pos Hi Spd Fan (Vent Min Pos Hi) 20% 0% to 100%DCV Econ Dmpr Min Pos Lo Spd Fan (Vent Min Pos Lo) 50% 0% to 100%Building Pressure Setpoint (Bldg Press Stpt) 0.1 in. W.C. -0.25 in. W.C. to 0.25 in. W.C.Fresh Air Intake Enable (Fresh Air Enable) Off On, Off


Table 8: Advanced Setup menuLevel 2 on MAP Gateway (on LCD) Default values Available valuesFresh Air Intake Setpoint (Fresh Air Stpt) 800 cfm 0 cfm to 10,000 cfmCompressor Min Off Time (Cmp Min Off Time) 60 s 60 s to 600 sCompressor Min On Time (Cmp Min On Time) 60 s 60 s to 600 sCompressor 1 Lockout (Comp 1 Lockout) Normal Normal, LockoutCompressor 2 Lockout (Comp 2 Lockout) Normal Normal, LockoutCompressor Stage Enabled (Comp Enable) Yes Yes, NoAltitude 0 ft 0 ft to 15,000 ft

Advanced Status menu

Table 9: Advanced Status menuLevel 2 on MAP Gateway (on LCD) DescriptionIndoor Air Quality (Indoor Quality) Displays the reading from the indoor air quality sensor in the

range of 250 ppm to 2,000 ppm.Outdoor Quality Displays the reading from the outdoor air quality sensor.Fresh Air Intake Value (Fresh Air Flow) Displays the reading from the outdoor air flow sensor.Purge Displays the purge status. Possible values: Normal, Alarm.Shutdown Displays the shutdown status. Possible values: On, Off.OA Damper Control State (Damper State) Displays the current damper state.Compressor Control Mode (Comp Ctrl Mode) Displays the compressor control mode.Exhaust Control State (Exhaust State) Displays the exhaust state.Demand Ventilation Status (Vent Status) Displays the demand ventilation status.Comp Avail State Displays the compressor availability.Compressor Stage 1 Status (Comp 1 Status) Displays the status of compressor 1.Compressor Stage 2 Status (Comp 2 Status) Displays the status of compressor 2.Econ Fault State Displays the economizer fault state.Excess SAT State Displays information on the excess SAT state.Exhaust Control Determination State (Exh Det State) Displays the exhaust detection state.Exhaust Control Mode (Exhaust Mode) Displays the current exhaust mode.Fresh Air Intake Control Active (Fresh Air Active) Displays the fresh air active state.Mechanical Thermostat Sequencer State (Mech Tstat State) Displays the status of the mechanical thermostat.OA Damper Control Mode (Damper Mode) Displays the damper mode.Staged Output Control State (Staged Out State) Displays the state of the staged output control.Startup Delay State (Strt Delay State) Displays the start-up delay state.

Controller menu

Table 10: Calibration submenuLevel 3 on MAP Gateway (on LCD) Default values Available valuesSAT Offset 0°F -5°F to 5°FOAT Offset 0°F -5°F to 5°FOAH Offset 0% -5% to 5%RAT Offset 0°F -5°F to 5°FRAH Offset 0% -5% to 5%BSP Offset 0 in. W.C. -0.05 in. W.C. to 0.05 in. W.C.IAQ Offset 0 ppm -100 ppm to 100 ppmOAQ Offset 0 ppm -100 ppm to 100 ppmFAI Offset 0 cfm -100 cfm to 100 cfmFresh Air Range 10,000 cfm 0 cfm to 50,000 cfm


Table 11: Misc submenuLevel 3 on MAP Gateway (on LCD) Default values Available valuesComp 1 Runtime 0 minutes 10,000 minutesComp 2 Runtime 0 minutes 10,000 minutesReset Accumulator No Yes, NoPID Tuning Reset False True, FalseDamper Integral Time (Damper Int Time) 0 N/A (read-only)Damper Prop Band 0 N/A (read-only)Exhaust Integral time (Exh Int Time) 0 N/A (read-only)Exhaust Prop Band (Exh Prop Band) 0 N/A (read-only)

Table 12: Controller Information submenuLevel 2 Description Available valuesBrightness Setting You can set the brightness of the display.

Default value: 53 to 10

Firmware Version Displays the current firmware version. N/AFirmware Status Displays the firmware status. Firmware Versions OK

Firmware Versions Do Not Match thePackage

Language You can set the language of the device.Default value: English

English, French, Spanish

Units You can set the units that the device uses.Default value: IP

IP, SI

Relearn System Relearns the sensors connected to thecontroller. Default value: False

True, False

Update menu

Table 13: Update menuLevel 2 Description Available valuesView Version Displays the current firmware version and

status.N/A

Load Firmware Displays a list of choices that you can load. N/ABackup You can create a backup of the device. Backup: Wait, Backup 0%

Backup: Ok, Backup 100%Restore You can restore data from a backup file. BackupConfig (file name to be restored)Export Trend You can export trends. Exporting, Export DoneSelftestReport You can create a self-test report. N/A

Self Test menu

Table 14: Self Test menuLevel 2 Level 3 Level 4 DescriptionSelf Test Status Current State Status

Self Test StatusSelf Test Time RemainingSelf Test Prompt

N/A Displays information about thetest progress or any promptsthat you need to answer.


Table 14: Self Test menuLevel 2 Level 3 Level 4 Description

All Test N/A Runs all the tests.Equipment Test Alarm

DamperCompressor 1Compressor 2Power ExhaustERVPower Ex VFD

Self Test Start

Acceptance Test OA VentilationRTU TestEconomizerDemand Ctl VentFDD

Runs the selected test.

Self Test Pause N/A N/A Pauses the test.Self Test Cancel N/A N/A Cancels the test.Self Test Reset N/A N/A Resets the self test status.

View Results menu

Table 15: View Results menuLevel 2 Available valuesAlarmDamperCompressor 1Compressor 2Power ExhaustERVPower Ex VFDOA VentilationRTU TestEconomizerDemand Ctl VentFDD

Stabilize, Wait, Check, Available, Not Run, Pass, Fail, Warning

Menu conditions

Table 16: Menu conditional variablesMenu item Condition to appear in the menuExhaust Setup Always appearsDamper Position for Exhaust Fan to Turn On Exhaust Setup set to Non-Modulating Control and Supply Fan Setup

set to Single SpeedDamper Position for Exhaust Fan to Turn Off Exhaust Setup set to Non-Modulating Control and Supply Fan Setup

set to Single SpeedBuilding Static Pressure Setpoint Exhaust Setup set to Variable Frequency FanOAT Cooling Cutout Enabled Equipment Type set to Conv RTUOAT Cooling Cutout Equipment Type set to Conv RTU and OAT Cooling Cutout Enabled

set to TrueSupply Fan Type Equipment Type set to Conv RTULow Ambient Economizer Setpoint Damper Low Ambient set to Enabled


Table 16: Menu conditional variablesMenu item Condition to appear in the menuLow Ambient Economizer Minimum Position Damper Low Ambient set to EnabledEconomizer Damper Minimum Position Low SpeedFan

Supply Fan Type set to Two Speed and DCV set to Disabled

Demand Ventilation Maximum Economizer Position DCV is not DisabledDemand Ventilation Indoor Air Quality Setpoint DCV is not DisabledFresh Air Intake Setpoint Fresh Air Intake is EnabledDCV Economizer Damper Minimum Position LowSpeed Fan

Supply Fan Type set to Two Speed and DCV is not Disabled

DCV Economizer Damper Minimum Position HighSpeed Fan

Supply Fan Type set to Two-Speed and DCV is not Disabled

Damper Position for Exhaust Fan to Turn Off LowSpeed Fan

Exhaust Setup set to Non-Modulating Control and Supply Fan setupis not Single Speed

Damper Position for Exhaust Fan to Turn On LowSpeed Fan


Compressor 2 Lockout The number of compressors > 1Compressor 2 Test The number of compressors > 1Power Exhaust Test Power Exhaust Test set to Non-Modulating ControlERV Pivot Test Exhaust Setup set to ERVExhaust VFD Test Exhaust Setup set to Variable Frequency FanOA Vent Test Fresh Air Intake is EnabledDCV Test DCV is not DisabledSAT Offset SAT Sensor connectedRAT Offset RAT Sensor connectedOAT Offset OAT Sensor connectedOAH Offset OAH Sensor connectedRAH Offset RAH Sensor connectedIAQ Offset IAQ Sensor connectedBSP Offset BSP Sensor connectedFAI Offset FAI Sensor connectedOAQ Offset OAQ Sensor connectedFresh Air Range Fresh Air Intake is EnabledDamper Position For Exhaust Fan to Turn Off HighSpeed Fan


Damper Position for Exhaust Fan to Turn On HighSpeed Fan


Exhaust Fan VFD Percent Command Exhaust Setup set to Variable Frequency FanCompressor Stage 2 Command The number of compressors > 1Exhaust Fan Command Exhaust Setup not equal to NoneExhaust Control Determination State Exhaust Setup not equal to NoneExhaust Control Mode Exhaust Setup not equal to NoneExhaust Control State Exhaust Setup not equal to NoneDemand Ventilation Status DCV not equal to DisabledFresh Air Intake Control Active Fresh Air Intake is EnabledCompressor Stage 2 Status The number of compressors > 1Exhaust Fan Status Exhaust Setup set to Non-Modulating Control or Exhaust Setup set

to Variable Frequency FanERV Status Exhaust Setup set to ERVExhaust Prop Band Exhaust Setup set to Variable Frequency FanExhaust Integral Time Exhaust Setup set to Variable Frequency FanCompressor 2 Test Status The number of compressors > 1Power Exhaust Test Status Exhaust Setup set to Non-Modulating ControlERV Pivot Test Status Exhaust Setup set to ERVExhaust VFD Test Status Exhaust Setup set to Variable Frequency FanOA Vent Test Status Fresh Air Intake is Enabled


Table 16: Menu conditional variablesMenu item Condition to appear in the menuDCV Test Status DCV is not DisabledC2 Runtime The number of compressors > 1

Self testAbout this task:You can perform a self test to ensure proper operation. The self test verifies configuration, inputs,outputs, and makes it possible for you to run an Acceptance Test for Title 24 compliance. You canselect which specific test you would like to run for troubleshooting.The self test has a stabilization period to drive all the outputs to OFF or 0%. The active period ener-gizes the equipment. The VFD or Supply Fan may run throughout both the stabilization and activeperiods.To begin a self test, perform the following steps:

1. Navigate to Self-Test > Self-Test Start.2. Select one of the following options:

- All Test: You can run all the tests.

- Equipment Test: You can run one of the equipment tests, see Equipment test.

- Acceptance Test: You can run one of the acceptance tests, see Acceptance test.

Equipment test

For a list of the possible outputs, see Table 3. For the expected output states of the equipment test,see Table 17.

Damper test

This test changes the damper command to 100%. The test passes if the damper feedback signalreaches 100% within three minutes. If the signal never reaches 100% within three minutes, the testfails. If there is less than 2% of damper feedback after 20 seconds, there is a warning to check thedamper position feedback.

Alarm test

This test issues an alarm to a specific output and prompts you to continue. If you continue and thenconfirm that the alarm is active, the test passes. If you do not respond within 10 minutes to eitherof the prompt messages, or you do not confirm that the alarm is active, the test fails.

Compressor test

The compressor tests 1 and 2 are available when the occupancy binary input is in the Occupiedstate. The output (Y1 or Y2) activates, and turns on the compressor. If the supply air temperaturedecreases by 2°F or more within three minutes, the output deactivates, and the test passes. If thesupply air temperature does not decrease by at least 2°F within three minutes, the test displays awarning. Other possible results include: Fail - Shut Down Status.

Power exhaust test

This test is only available if the Damper Test Passes. The damper opens and the exhaust fan outputactivates. The test passes if you confirm within 10 minutes that the exhaust fan is running. If you do


not confirm this within 10 minutes, the test displays a warning. The test fails if the damper does notopen.

VFD power exhaust test

This test is only available if the Damper Test passes. The damper opens and the exhaust fan VFDramps from 0% (off) to 100%. If a building static pressure reading is available, the test monitors thepressure during this ramp-up period. The test passes if the building static pressure decreases.If the building static pressure sensor is not available, you must confirm that the exhaust fan isrunning. The test passes if you confirm within 10 minutes that the exhaust fan is running. If you donot confirm this within 10 minutes, the test displays a warning. The test fails if the damper does notopen.

ERV pivot test

This test activates the ERV, and prompts you to continue. If you continue and then confirm thatthe ERV is pivoted, the test passes. If you do not respond within 10 minutes to either of the promptmessages, or you do not confirm that the ERV is pivoted, the test fails.

Output states after the equipment test

The following table shows the expected output states of the self test.Table 17: Output States During the Self-TestTest/Output Y1 Y2 Exhaust Fan ERV Damper AlarmAlarm Off Off Off Off 0% OnCompressor 1 On Off Off Off 0% OffCompressor 2 Off On Off Off 0% OffPower Exhaust Test Off Off On/Ramp Off 0% OffERV Pivot Test Off Off Off On 0% OffDamper Test Off Off Off Off Ramp Open;

Ramp CloseOff

Acceptance test

The Acceptance tests are available when the Damper Test passes. The acceptance test certifies theCalifornia Energy Code Title 24 compliance for retrofit units.

Outdoor air ventilation test

The outdoor air ventilation test certifies compliance with NA7.5.1.2 Outdoor Air Acceptance (FormCEC-MECH-2A). This test disables the economizer and DCV, which causes the damper to open to thefixed minimum position. You measure the OA flow and have 10 minutes to respond to the prompt.Possible results include: Fail - OA flow not measured or Pass.

Rooftop unit test

The rooftop unit test evaluates the entire thermostat, economizer, and RTU system and certifiescompliance with NA7.5.2 Rooftop Acceptance (Form NRCA-MCH-03-A). This test disables theeconomizer and DCV operation. You have 20 minutes to perform system tests and respond to aprompt on the controller. Possible results include: Fail - RTU prompt not acknowledged, and Pass.


Economizer test

The economizer test certifies compliance with NA7.5.4 Air Economizer Controls Acceptance (FormNRCA-MCH-05-A). This test disables the DCV and simulates the demand for cooling, free coolingavailability, and supply air temperature to quickly open the damper to 100% (Steps 2a and 2b onthe form). You must confirm the return air damper operates properly. Another simulation beginsto verify integrated economizer operation (Step 2c on the form). The economizer disables andthe damper closes to the minimum position (Step 3 on the form). Possible results include: Fail -OA damper not modulating, Fail - RA damper not modulating, Fail - No integrated economizeroperation, Fail - Prompt respond not received, and Pass.

DCV test

The DCV test certifies compliance with NA7.5.5 Demand Control Ventilation Systems Acceptance(Form CEC-MECH-6A). The economizer operation disables and an IAQ sensor reading greater thanthe active setpoint is simulated. The test verifies that the damper opens from the minimum position(Step 1 on the form). After a one-minute delay, an IAQ sensor reading of 0 ppm simulates and thetest system verifies that the damper closes to minimum position (Step 2 on the form). Possibleresults include: Fail - DCV not functioning, and Pass.

FDD test

The FDD test certifies compliance with NA7.5.11 Fault Detection and Diagnostics (FDD) (Form NRCA-MCH-12-A). The system instructs you to disconnect the OA temperature sensor from the unit (Step2 on the form). You must confirm that a fault is reported. After that, you are instructed to reconnectthe OA Temperature sensor (Step 3 on the form) and confirm that the faults are cleared. Possibleresults include: Fail - Faults not detected, Fail - Faults not cleared, and Pass.

Sequence of operationThe RRS Economizer controller contains software applications that can bring outside air into abuilding and reduce the use of mechanical equipment. The controller provides outside air coolingwith the following components: outside air damper, supply air temperature sensor, outside airtemperature sensor, and thermostat inputs (RTU or heat pump control).In addition, the controller features exhaust fan control by a Variable Frequency Drive (VFD) orEnergy Recovery Ventilator (ERV), and it also offers controls for building pressure, outside airflow,outdoor air quality, and purge.

Free cooling sequences

If the free cooling selection parameter is set to Auto (default), the economizer selects which freecooling method to use based on which temperature and humidity sensors are present and reliable,as shown in the following table. The economizer selects the free cooling type in the following order:

1. Dual Enthalpy

2. Single Enthalpy

3. Dry Bulb

You can also select the free cooling type manually.


Table 18: Free cooling sensor requirementsSensor typeFree cooling method

Outdoor AirTemperature(OAT)

Outdoor AirHumidity(OAH)

Return AirTemperature(RAT)

Return AirHumidity (RAH)

Dual Enthalpy X X X XSingle Enthalpy X X

Dry Bulb X

The following table describes when free cooling is available for dry bulb, single enthalpy, and dualenthalpy.Table 19: Free cooling determinationFree cooling type Condition Description

Available OAT < (Dry Bulb Setpoint - 1°F)Unavailable OAT > Dry Bulb Setpoint

Dry Bulb

Note: If the outside air dry bulb temperature value is unreliable, freecooling is not available. The Dry Bulb Setpoint is adjustable between35°F and 86°F.

Available OA Enthalpy < (Outdoor Air Enthalpy Setpoint - 1Btu/lb) andOAT < (High Limit Shutoff -1°F)

Unavailable OA Enthalpy > Outdoor Air Enthalpy Setpoint orOAT > High Limit Shutoff

Single Enthalpy

Note: The Outdoor Air Enthalpy Setpoint is adjustable between 10 Btu/lb and 50 Btu/lb.

Available OA Enthalpy < (RA Enthalpy - 1 Btu/lb) and OAT < (High LimitShutoff - 1°F)

Dual Enthalpy

Unavailable OA Enthalpy > RA Enthalpy or OAT > High Limit Shutoff

Outside air damper sequences

When the control is in Occupied Mode and the FAN output is energized, the OA Damper positionis based on the largest position command determined by the controlling strategies. The controlsystem positions the outside air damper based on the following:

• Minimum damper position setpoint (default)

• Low ambient minimum position reset

• Outdoor air flow

• Demand ventilation

• Purge

• Free cooling modulation


Minimum position

The minimum position sequence requires that other damper control strategies are inactive. Whilein this mode, the controller commands the Outdoor Air Damper to the Damper Minimum PositionSetpoint parameter.

Low ambient minimum position

The low ambient minimum position sequence overrides all other minimum position functions.When the control is in the occupied mode and the operational OAT is below the Low AmbientEconomizer Setpoint, the Economizer positions the damper to the Low Ambient EconomizerMinimum Position. When the Operational OAT is equal to, or above, the Low Ambient EconomizerSetpoint, the control exits the Low Ambient Economizer setpoint mode.

Outdoor air flow monitoring

You must have an outdoor air flow sensor installed and reading a reliable value to enable thiscontrol sequence.When the Outdoor Air Flow Monitoring strategy is active, the economizer modulates the OutdoorAir Damper between Minimum Position and 100% to maintain the Fresh Air Intake value for theFresh Air Intake Setpoint +/- 40 cfm.

Demand ventilation

If the demand ventilation sequence is configured and the operational indoor CO2 level is greaterthan the Demand Ventilation Setpoint + 100 ppm, the current operating minimum positionincreases based on the CO2 level, as follows:

• Between demand ventilation setpoint + 101 ppm and + 200 ppm, the operating minimumposition increases by 1% per minute.

• Above demand ventilation setpoint + 200 ppm, the operating minimum position increases by 2%per minute.

When the CO2 level drops to a value below the Demand Ventilation Setpoint, the current operatingminimum position decreases at the same rate.While in a demand ventilation mode, if the supply air temperature drops below 49°F, theEconomizer outside air damper closes to the current operating minimum position until the supplyair temperature rises above 49°F.If the Differential DCV Enable is On and the OAQ is greater than or equal to the IAQ by more thanthe Demand Ventilation Differential Setpoint, the outside air damper is commanded closed, whichcompletely overrides all other minimum position functions.

Purge

The Purge sequence enables when the Purge Input is True. The Outside Air Damper fully opens(100%), and mechanical cooling turns off during this sequence. The economizer still opensthe Outside Air Damper to 100% if the Occupied signal is False. If an exhaust fan is part of theconfiguration, the controller turns on the exhaust fan command.

Free cooling modulation

The economizer controller modulates the outdoor air damper between the Minimum Position and100% to maintain the Supply Air Temperature at the Supply Air Temperature Setpoint.


Mechanical cooling

When the Y2 input is active while Free Cooling is enabled, the economizer modulates the OutdoorAir Damper to 100% open and turns the Y1 Output On to enable Stage 1 of mechanical cooling onthe Rooftop Unit (RTU). After 20 minutes, if the Y2 Input is still active, the economizer turns on theY2 Output and enables the second stage of mechanical cooling. Table 20 shows the command foreach output and the modes of operation.Table 20: Mechanical Cooling Determination

Inputs OutputsModes Y1 Y2 W1 Y1 Out Y2 Out Damper

Econ 1 0 0 Off Off Min -100%Econ + Mech 1 1 0 On 1Off1 100%

Mech 1 0 0 On Off MinMech 1 1 0 On On MinHeating 0 0 1 Off Off Min

1 This turns on if the Y2 Input remains on for over 20 minutes.

Exhaust fan control

Note: The Direct Exhaust Fan Control and the ERV control share the same output when theyare configured. The ERV controller controls the exhaust fan when the ERV is enabled andpresent.

The economizer has the following power exhaust fan control options:

• None (default)

• Non-modulating

• Modulating (building pressure control)

Non-modulating

When the OA damper command becomes higher than the setpoint to turn on the exhaust fan, theexhaust fan turns on. When the OA damper output drops below the setpoint to turn off the exhaustfan, the exhaust fan turns off.

Modulating (Building pressure control)

When the building pressure rises above the building pressure setpoint, the system increases theexhaust fan VFD percent command output. When this output rises above 2%, the exhaust fan turnson.When the building static pressure decreases below the building pressure setpoint, the systemdecreases the exhaust fan VFD percent command output. When this output decreases to 2% or less,the exhaust fan turns off.The rate of change for the analog output is determined by the deviation from the setpoint and thelength of time away from the setpoint.

Energy Recovery Ventilator

When the controller is configured with the Energy Recovery Ventilator feature, it provides an outputto energize the ERV. The ERV pivot function is enabled by the ERV output (BO) connected to the


controller. The binary output energizes when the damper position is greater than 50% with a 5%differential.

Heat pump

When the controller is connected to a heat pump, configure the Thermostat Type parameter asfollows:

• Configure the parameter to O if the O/B output on the thermostat is energized during coolingmode.

• Configure the parameter to B if the O/B output on the thermostat is energized during heatingmode.

The following tables detail the output commands for each type of configuration.

Table 21: Heat pump thermostat, configured to energize O/B in cooling modeInputs Outputs

Modes Y1 Y2 O Y1 Out Y2 Out DamperEcon 1 0 1 Off Off Min -100%Econ + Mech 1 1 1 On Off 100%Mech 1 0 1 On Off MinMech 1 1 1 On On MinHeating 1 0 0 On On MinHeating 1 1 0 On On Min

Table 22: Heat pump thermostat, configured to energize O/B in heating modeInputs Outputs

Modes Y1 Y2 B Y1 Out Y2 Out DamperEcon 1 0 0 Off Off Min -100%Econ + Mech 1 1 0 On Off 100%Mech 1 0 0 On Off MinMech 1 1 0 On On MinHeating 1 0 1 On Off MinHeating 1 1 1 On On Min

Excessive Supply Air Temperature (SAT) control

The excessive SAT control strategy prevents damage to compressor elements due to extremes ofthe SAT. If the SAT falls below the Excessive SAT (Cooling) setpoint, the control terminates a coolingstage. The control waits for the user-defined SAT Monitor Time, if the SAT is still below the ExcessiveSAT (Cooling) setpoint, it terminates another stage of cooling.Excessive SAT control takes priority over DCV and outdoor air flow control.The control sequence returns to the normal state when the SAT is greater than the Excessive SAT(Cooling) Setpoint for the user-defined Excessive SAT Min OFF Time.

Two-speed supply fan

The following table describes the two-speed supply fan operation.


Table 23: Two-speed fan operationInput signals Derived fan speedUnoccupied/Not OCC OffOccupied/OCC LowY1 LowY2 HighW High

In addition, if the exhaust fan is in non-modulating mode, you can set the damper position at whichthe exhaust fan turns on or off and changes between high speed and low speed. The economizeruses the exhaust fan binary output to control the fan according to your configuration.

Low voltage response

When the Economizer controller detects that the 24 VAC signal is less than 19.2 VAC, the controllerdoes not allow any additional relay outputs to be commanded ON, and initiates an alarm.When the economizer controller detects the 24 VAC signal is less than 16 VAC, the controller de-energizes all relay outputs and initiates an alarm for the condition.

Alarms

The following table lists the economizer alarms.Table 24: AlarmsAlarm Text DescriptionOutputs Disabled Due to Low Input V When a blackout condition is detected, all

outputs deactivate.Outputs Limited Due to Brownout Input V When a brownout condition is detected, all

outputs are held at the current state.Building Pressure Sensor Failure Identifies an unreliable or disconnected building

pressure sensor.Outdoor Air Temperature Sensor Failure Identifies an unreliable or disconnected outdoor

air temperature sensor.Return Air Temperature Sensor Failure Identifies an unreliable or disconnected return

air temperature. The control returns to the fixeddry bulb.

Supply Air Temperature Sensor Failure Identifies an unreliable or disconnected supplyair temperature sensor.

Econ Controller Calibration Error Detects that the damper position calibration isnot present. The Economizer disables.

Return Air Humidity Sensor Failure Identifies an unreliable or disconnected returnair humidity sensor. The control returns to thefixed enthalpy + dry bulb.

Outdoor Air Humidity Sensor Failure Identifies an unreliable or disconnected outdoorair humidity sensor. The control returns to thedry bulb.


Table 24: AlarmsAlarm Text DescriptionIndoor Air Quality Sensor Failure Identifies an unreliable or disconnected indoor

CO2 sensor. DCV is disabled.Outdoor Air Quality Sensor Failure Indicates an unreliable or disconnected outdoor

CO2 sensor. The differential DCV is disabled.Low Outdoor Air Temp Cooling Cutout Indicates Low Temperature Limit and disables

economizing and mechanical cooling.Economizer Letting In Excess Outdoor Air Indicates that the damper is stuck open, or that

there is an actuator or sensor failure.Unit has Received a Purge Request Indicates that a Purge signal is present.Excessive Supply Air Temp Cooling Indicates that the supply air temperature is less

than the Excessive SAT Cooling Setpoint.Fresh Air Intake Sensor Failure Identifies an unreliable or disconnected outdoor

air flow sensor.Air Temperature Sensor Failure Indicates that one or more air temperature

sensors are unreliable or disconnected.Econ Economizing When It Should Not Indicates that the damper is stuck open, or that

there is an actuator or sensor failure.Econ Not Economizing When It Should Indicates that the damper is stuck at minimum

position, or that there is an actuator or sensorfailure.

Economizer Damper Not Modulating Indicates that the damper is not respondingto commands, or that there is an actuator orsensor failure.

Economizer Letting In Excess Outdoor Air Indicates that the damper is stuck open, or thatthere is an actuator or sensor failure.

Technical specificationsTable 25: Economizer controller specificationsProduct code number RK-ECO1011-0 RRS Economizer Controller Advanced ModelPower supplyrequirement

24 VAC (nominal, 20 VAC minimum, 30 VAC maximum), 50/60 Hz,Power Supply Class 2 (North America)

Power consumption 15 VA maximumNote: VA ratings do not include any power supplied to theperipheral devices connected to binary outputs (BOs).

Ambient conditions Operating: -40°F to 158°F (-40°C to 70°C); 10% to 90% RHnoncondensing

UI Operating: -4°F to 158°F (-20°C to 70°C); 10% to 90% RHnoncondensing

Storage: -40°F to 194°F (-40°C to 90°C); 5% to 95% RH noncondensingProcessor RX631 Renesas® microcontroller


Table 25: Economizer controller specificationsMemory 2 MB internal program flash, 32 KB internal E2Data flash, 4 MB

external serial flash memoryInput and outputcapabilities

Ten AIs: three 10k RTD, seven 0 VDC to 10 VDC

Two AOs: 0 VDC to 10 VDC, 10 mA maximum

Six BIs: 24 VAC inputs with contact cleaning circuits

Four BOs: three 24 VAC relay outputs, one Dry Contact Alarm outputHousing UL94 5VB Plastic; self-extinguishingMounting Horizontal on single 35 mm DIN rail mount or screw mount on flat

surfaceDimensions(Height x width x depth)

5-13/16 in. x 6-1/2 in. x 2-1/8 in. (148 mm x 165 mm x 54 mm)Note: Mounting space requires an additional 2 in. (50 mm)space on top, bottom and front face of controller for easy coverremoval, ventilation, and wiring terminations.

Shipping weight 1.0 lb (0.45 kg)United States:California Title 24UL Listed, File E107041, UL 916, Energy Management EquipmentFCC Compliant to Part 15, Class B

Compliance

Canada:cUL Listed, File E107041, CSA 22.2 No. 236, Signal Equipment IndustryCanada, Industry Canada Compliant - ICES-003

North American emissions compliance

United States

This equipment has been tested and found to comply with the limits for a Class B digital device,pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protectionagainst harmful interference in a residential installation. This equipment generates, uses and canradiate radio frequency energy and, if not installed and used in accordance with the instructions,may cause harmful interference to radio communications. However, there is no guarantee thatinterference will not occur in a particular installation. If this equipment does cause harmfulinterference to radio or television reception, which can be determined by turning the equipmentoff and on, the user is encouraged to try to correct the interference by one or more of the followingmeasures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver isconnected.

• Consult the dealer or an experienced radio/TV technician for help.


Canada

This Class (B) digital apparatus meets all the requirements of the Canadian Interference-CausingEquipment Regulations.Cet appareil numérique de la Classe (B) respecte toutes les exigences du Règlement sur le matérielbrouilleur du Canada.

Software termsUse of the software that is in (or constitutes) this product, or access to the cloud, orhosted services applicable to this product, if any, is subject to applicable terms set forth atwww.johnsoncontrols.com/techterms. Your use of this product constitutes an agreement to suchterms.

Product warrantyThis product is covered by a limited warranty, details of which can be found atwww.johnsoncontrols.com/buildingswarranty.


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