Installation Instructions

Introduction

Read this manual thoroughly before operating or servicing this unit.

Warnings, Cautions, and Notices

Safety advisories appear throughout this manual as required. Your personal safety and the proper operation of this machine depend upon the strict observance of these precautions.

The three types of advisories are defined as follows:

• WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
• CAUTION: Indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury. It could also be used to alert against unsafe practices.
• NOTICE: Indicates a situation that could result in equipment or property-damage only accidents.

Important Environmental Concerns

Scientific research has shown that certain man-made chemicals can affect the earth’s naturally occurring stratospheric ozone layer when released to the atmosphere. In particular, several of the identified chemicals that may affect the ozone layer are refrigerants that contain Chlorine, Fluorine and Carbon (CFCs) and those containing Hydrogen, Chlorine, Fluorine and Carbon (HCFCs). Not all refrigerants containing these compounds have the same potential impact to the environment. Trane advocates the responsible handling of all refrigerants.

Important Responsible Refrigerant Practices

Trane believes that responsible refrigerant practices are important to the environment, our customers, and the air conditioning industry. All technicians who handle refrigerants must be certified according to local rules. For the USA, the Federal Clean Air Act (Section 608) sets forth the requirements for handling, reclaiming, recovering and recycling of certain refrigerants and the equipment that is used in these service procedures. In addition, some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants. Know the applicable laws and follow them.

Proper Field Wiring and Grounding Required!

Failure to follow code could result in death or serious injury. All field wiring MUST be performed by qualified personnel. Improperly installed and grounded field wiring poses FIRE and ELECTROCUTION hazards. To avoid these hazards, you MUST follow requirements for field wiring installation and grounding as described in NEC and your local/state/national electrical codes.

Personal Protective Equipment (PPE) Required!

Failure to wear proper PPE for the job being undertaken could result in death or serious injury. Technicians, in order to protect themselves from potential electrical, mechanical, and chemical hazards, MUST follow precautions in this manual and on the tags, stickers, and labels, as well as the instructions below:

• Before installing/servicing this unit, technicians MUST put on all PPE required for the work being undertaken (Examples; cut resistant gloves/sleeves, butyl gloves, safety glasses, hard hat/bump cap, fall protection, electrical PPE and arc flash clothing). ALWAYS refer to appropriate Safety Data Sheets (SDS) and OSHA guidelines for proper PPE.
• When working with or around hazardous chemicals, ALWAYS refer to the appropriate SDS and OSHA/GHS (Global Harmonized System of Classification and Labeling of Chemicals) guidelines for information on allowable personal exposure levels, proper respiratory protection and handling instructions.
• If there is a risk of energized electrical contact, arc, or flash, technicians MUST put on all PPE in accordance with OSHA, NFPA 70E, or other country-specific requirements for arc flash protection, PRIOR to servicing the unit. NEVER PERFORM ANY SWITCHING, DISCONNECTING, OR VOLTAGE TESTING WITHOUT PROPER ELECTRICAL PPE AND ARC FLASH CLOTHING. ENSURE ELECTRICAL METERS AND EQUIPMENT ARE PROPERLY RATED FOR INTENDED VOLTAGE.

Follow EHS Policies!

Failure to follow instructions below could result in death or serious injury.

• All Trane personnel must follow the company's Environmental, Health and Safety (EHS) policies when performing work such as hot work, electrical, fall protection, lockout/tagout, refrigerant handling, etc. Where local regulations are more stringent than these policies, those regulations supersede these policies.
• Non-Trane personnel should always follow local regulations.

R-454B Flammable A2L Refrigerant!

Failure to use proper equipment or components as described below could result in equipment failure, and possibly fire, which could result in death, serious injury, or equipment damage. The equipment described in this manual uses R-454B refrigerant which is flammable (A2L). Use ONLY R-454B rated service equipment and components. For specific handling concerns with R-454B, contact your local representative.

Copyright

This document and the information in it are the property of Trane, and may not be used or reproduced in whole or in part without written permission. Trane reserves the right to revise this publication at any time, and to make changes to its content without obligation to notify any person of such revision or change.

Trademarks

All trademarks referenced in this document are the trademarks of their respective owners.

Revision History

Document updated to meet A2L standards.

General Information

Inspection

1. Check carefully for shipping damage. If any damage is found, report it immediately, and file a claim against the transportation company. Replace damaged parts with authorized parts only.
2. Compare the order number on the shipping label with the accessory identification information on the ordering and shipping documents to verify that the correct accessory has been received.

Parts List

Table 1 lists components shown in Figure 1.

Figure 1. Major economizer components -- field installed option

This figure illustrates the major components of the economizer assembly, including the main economizer unit (1), fresh air hood (LH, 2), fresh air hoods (RH, 3; top, 4; bottom, 6), mist eliminator (5), end panel (8), installation bag with screws (9), mixed air sensor harness (10) and bracket (11), gasket (12), literature (13), mixed air sensor (14), and label (15).

Parts List (Additional)

Field Supplied Part

NOTICE Corrosion Damage!

Failure to use recommended caulking/sealant could cause corrosion related failures to refrigerant components.

Field Installation

WARNING Hazardous Service Procedures!

Failure to follow all precautions in this manual and on the tags, stickers, and labels could result in death or serious injury. Technicians, in order to protect themselves from potential electrical, mechanical, and chemical hazards, MUST follow precautions in this manual and on the tags, stickers, and labels, as well as the following instructions: Unless specified otherwise, disconnect all electrical power including remote disconnect and discharge all energy storing devices such as capacitors before servicing. Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized. When necessary to work with live electrical components, have a qualified licensed electrician or other individual who has been trained in handling live electrical components perform these tasks.

WARNING Hazardous Voltage w/Capacitors!

Failure to disconnect power and discharge capacitors before servicing could result in death or serious injury. Disconnect all electric power, including remote disconnects and discharge all motor start/run capacitors before servicing. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. Verify with a CAT III or IV voltmeter rated per NFPA 70E that all capacitors have discharged.

CAUTION Heavy Object!

Failure to follow instructions below could result in severe injury and equipment damage. Economizer weighs over 50 pounds and should be installed by two people.

NOTICE Equipment Damage!

Forcibly turning the motor shaft can damage the gear train and motor beyond repair. Never turn the motor shaft by hand or with a wrench.

Step 1: Panel Removal

Remove the filter access panel, unit end panel and horizontal return panel. Retain screws for later use. Discard unit end panel. See Figure 2.

Figure 2. Panel removal

This figure shows the removal of the Filter Access Panel, End Panel, and HZ Return Panel.

Step 2: Install Horizontal Return Panel

Install the horizontal return panel onto downflow return opening removed in previous step using nine screws. Figure 3.

Figure 3. Return panel installation

This figure illustrates the horizontal return panel being installed onto the downflow return opening.

Step 3: Install Economizer

Install economizer onto unit. Align edge of both sides of the economizer panel flange with LH and RH side post as shown in Figure 4. Economizer should rest on return base pan as shown.

Figure 4. Economizer installation

This figure shows the economizer being installed onto the unit, highlighting the alignment of the panel flange with the side posts and its placement on the base pan.

Step 4: Install Item 8

Install item 8 onto unit using 10 screws. See Figure 5.

Figure 5. Economizer panel installation

This figure shows item 8 being installed onto the unit.

Step 5: Build Fresh Air Hood Assembly

Build the fresh air hood assembly per Figure 6.

• Apply gasket to 6, aligning to top edge of 6.
• Apply gasket to 2 and 3 as shown.
• Attach 7 to 2 and 3 using two screws on each side.
• Attach 4 to 6 using three screws.
• Attach assembly built in Step d to 2 and 3 using five screws on each side.
• Apply gasket to the fresh air hood assembly, aligning with three sides of the assembly.
• Insert and slide 8 through 9.

Figure 6. Air hood assembly

This figure details the assembly of the fresh air hood, showing the application of gaskets to components 6, 2, and 3, followed by the attachment of components 7, 4, and the assembly of 8 through 9.

Step 6: Install Mixed Air Sensor

Install Mixed Air Sensor; refer to Figure 7:

• Remove the front access panel and unit top cover of the unit.
• Remove mixed air sensor, two #6 screws and bracket from kit bag (item 11). Attach mixed air sensor to bracket using the two screws.
• Remove mixed air sensor wire harness from the bag (item 10). Connect harness to the economizer controller MAT pin.
• Route the mixed air sensor wire harness through the bushing located at the top of the evaporator coil and connect to the sensor.

Figure 7. Mixed air temperature sensor installation

This figure illustrates the installation of the mixed air temperature sensor, showing its connection to the wire harness and mounting bracket, and its routing through a grommet.

Step 7: Locate Unit Economizer Control Wiring Harness

Locate unit economizer control wiring harness plug PPM2A. The plug is located in the upper front section of the return air (attached to unit divider panel). Remove the mating connector plug and connect PPM2A to the economizer wire harness. See Figure 8.

Figure 8. Mating connector plug removal

This figure shows the PPM2A plug and the mating connector plug.

Step 8: Route Relay Harness

Remove unit top cover and control box access panel. Route relay harness as shown in Figure 9.

Figure 9. Economizer fault relay harness (EFR) routing

This figure shows the routing of the economizer fault relay (EFR) wire harness.

Step 9: Install Fresh Air Hood

Install the fresh air hood build in Step 5 on unit using nine screws and filter access door assembly using 13 screws. See Figure 10.

Figure 10. Fresh air hood installation

This figure illustrates the installation of the fresh air hood assembly and filter access door.

Step 10: Reinstall Filter Access Panel

Reinstall filter access panel onto unit using two screws. See Figure 11.

Figure 11. Reinstall filter access panel

This figure shows the filter access panel being reinstalled.

Step 11: Seal Damper Area

Using field supplied silicone sealant, seal all seams, cracks and gaps around the outdoor air damper as illustrated in Figure 12.

Figure 12. End panel and fresh air hood sealing

This figure demonstrates the sealing of seams, cracks, and gaps around the outdoor air damper, specifically showing the sealing along the end panel flanges and fresh air hood flanges.

Economizer Controller

NOTICE Electrostatic Discharge!

Electrostatic discharge can short equipment circuitry. Ensure that you are properly grounded before handling sensitive electronic equipment.

Notes:

• At power up or after a power outage or brownout (or if power goes below 18 Vac), the controller begins a 5 minute power up delay before enabling mechanical cooling. Power must be above 18 Vac for the delay to become functional.
• The controller will be in Setup mode for the first 60 minutes after powered. If a sensor for outside air or one of the Sylk Bus devices (sensor or actuator) is disconnected during the set up mode, the controller will not alarm that failure. The mixed air temperature sensor is a system critical sensor; if it is removed during the set up mode the controller will alarm. After 60 minutes the controller will change to Operation mode and all components removed or failed will alarm in the operation mode.
• The terminals on MAT, OAT and S-BUS sensors are polarity insensitive.

Controller User Interface and Keypad

The user interface consists of an LCD display and a 4-button keypad on the front of the economizer module. The LCD is a 16 character by 2 line dot matrix display.

Figure 13. Controller user interface and keypad

This figure shows the economizer controller's interface, including the LCD display and the keypad with Menu Up/Exit, Scroll Up/Down, and Select/Enter buttons.

Economizer module - left hand terminal blocks

Economizer module - left hand terminal blocks (cont.)

Economizer module - right hand terminal blocks

Economizer module - right hand terminal blocks (cont.)

Use of the Keypad When Working with Menus

• Navigate to the desired menu.
• Press the Enter button to display the first item in the currently displayed menu.
• Use the Up and Down buttons to scroll to the desired parameter.
• Press the Enter button to display the value of the currently displayed item.
• Press the Up button to increase (change) the displayed parameter value.
• Press the Down button to decrease (change) the displayed parameter value.
• Note: When values are displayed, pressing and holding the Up or Down buttons causes the display to automatically increment.
• Press the Enter button to accept the displayed value and store it in non-volatile RAM.
• CHANGE STORED displays.
• Press the Menu Up button to return to the menu list.

Time-out and Screensaver

When no buttons have been pressed for 10 minutes, the LCD displays a screensaver, which cycles through the Status items. Each Status item displays in turn and cycles to the next item after 5 seconds.

Controller Menu Structure

Important: Table 4, p. 12 illustrates the complete hierarchy. Menu parameters will be different depending on your configuration. If you do not have a DCV (CO2) sensor, then none of the DCV parameters appear and only MIN POS will display. If you have a CO2 sensor, the DCV MIN and DCV MAX will appear AND if you have 2 speed fan DCV MIN (high and low speed) and DCV MAX (high and low speed) will appear.

The menus in display order are:

• STATUS
• SETPOINTS
• SYSTEM SETUP
• ADVANCED SETUP
• CHECKOUT
• ALARMS

Economizer Controller Menu Structure

Table 4. Controller menu structure

Table 4. Controller menu structure (continued)

Sequence of Operation

The JADE controller is able to initiate the following modes: Compressor, Economizer, Fans, Heating System, and Cooling System. Compressor mode is initiated by either the OAT going above the DRYBLB SET setting or by the thermostat initiating a call to cool when the damper is at 100 percent open. The Economizer mode is controlled by the MAT getting above the MAT SET setting while the OAT is below the DRYBLB SET setting. While the fans are not controlled by the controller, the Fan mode is dependent on what state the system is in (OCC or Y1 states will cause the damper to go to a LOW fan speed damper setting, while W state will cause the controller to open the damper to the HIGH fan speed damper setting). The Heating System mode requires an input to the AUX2-1 terminal from the thermostat, and the Cooling System mode requires an input to the Y1 IN terminals from the thermostat.

Table 5. Dry bulb operation no DCV (CO2 sensor) - 1 speed fan

Table 6. Dry bulb operation with DCV (CO2 sensor) - 1 speed fan

Table 7. Enthalpy operation no DCV (CO2 sensor) - 1 speed fan

Table 8. Enthalpy operation with DCV (CO2 sensor) - 1 speed fan

Initiation of Operating Modes

The JADE controller is able to initiate the following modes: Compressor, Economizer, Fans, Heating System, and Cooling System. Compressor mode is initiated by either the OAT going above the DRYBLB SET setting or by the thermostat initiating a call to cool when the damper is at 100 percent open. The Economizer mode is controlled by the MAT getting above the MAT SET setting while the OAT is below the DRYBLB SET setting. While the fans are not controlled by the controller, the Fan mode is dependent on what state the system is in (OCC or Y1 states will cause the damper to go to a LOW fan speed damper setting, while W state will cause the controller to open the damper to the HIGH fan speed damper setting). The Heating System mode requires an input to the AUX2-1 terminal from the thermostat, and the Cooling System mode requires an input to the Y1 IN terminals from the thermostat.

Economizer Setup and Configuration (Field and Factory Installed Option)

Before being placed into service the controller must be setup and configured for the installed system.

Important: During setup, the economizer controller is live at all times.

1. Using the keypad on the controller scroll through the Setpoints, System Setup, and Advanced Setup menus and verify or set/change the parameters. See Table 4, p. 12.
2. Install front filter access panel back on to unit and secure with previous screws.

Notes:

• The W (heating mode) is not controlled by the controller but it requires the status to know where to position the outside air damper for minimum position for the fan speed.
• All setpoints and advanced settings are restored after any power loss or interruption.

Enthalpy Settings

NOTICE Electrostatic Discharge!

Electrostatic discharge can short equipment circuitry. Ensure that you are properly grounded before handling sensitive electronic equipment.

When the outside air temperature, enthalpy, and dew point are below the respective setpoints, the outdoor air can be used for economizing. See Figure 14, p. 18.

Note: The controller calculates the enthalpy and dew point using the outside air temperature and humidity input from the outside air sensor.

1. There are 5 boundaries (setpoints ES1 through ES5), which are defined by dry bulb temperature, enthalpy and dew point. See Table 9, p. 17.
2. When conditions are below the selected boundary, the economizer sets the economizing mode to YES and economizing is available. When conditions are above the selected boundary, the conditions are not good to economize and the mode is set to NO.

Note: When using the enthalpy (Sylk Bus) sensors, there will be a slight delay while the controller and the sensor communicate. Analog sensors do not communicate on the Sylk Bus and output a 20k ohm signal to the controller with an instantaneous response time.

Table 9. Single enthalpy and dual enthalpy boundaries (parameters ES1 through ES5)

Note: For differential enthalpy there is a high limit boundary. The high limit boundary is ES1 when there are no stages of mechanical cooling energized and HL when a compressor stage is energized.

Economizer Controller

Figure 14. Single enthalpy curve and boundaries

This figure illustrates the relationship between economizing availability, enthalpy, and temperature. It shows regions where economizing is available and not available based on these parameters, including single and dual enthalpy curves with high limit boundaries.

Powered Exhaust

To configure the LLE controller, set EXH1 SET in the SETPOINTS menu.

CO2 Sensor

This optional sensor can be added for Demand Control Ventilation (DCV) functionality. To configure the JADE controller, set the following parameters:

SETPOINTS Menu:

• DCV SET = desired CO2 ppm to start DCV
• VENTMAX = desired maximum position w/DCV and occupied status
• VENTMIN = desired minimum position w/DCV and occupied status

ADVANCED SETUP Menu:

• CO2 ZERO = set to detectors start level
• CO2 SPAN = detector's max level minus start level

Attach the sensor to the CO2 and R terminals (at customer connections).

Note: When using any 0 to 10 Vdc CO2 sensor with the JADE set CO2 ZERO to 400 ppm and the CO2 SPAN to 1600 ppm in the ADVANCED SETUP menu.

Occupancy Sensor

A customer-supplied occupancy sensor can also be added to provide damper control based on occupied/unoccupied conditions. To configure the JADE controller, set:

SYSTEM SETUP menu: OCC = INPUT

Attach the occupancy sensor to the OCC SENSOR wire and R terminal (at customer connections). The occupancy sensor must utilize a normally open contact for proper operation.

If an occupancy sensor is not used, another option to controlling occupied and unoccupied status is to use the G input (fan is running). Connect the G input to the OCC SENSOR wire (at customer connections). The controller will then operate in the occupied mode every time the indoor fan is running.

Checkout

WARNING Hazardous Voltage!

Failure to disconnect power before servicing could result in death or serious injury. Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized. Verify that no power is present with a voltmeter.

Inspect all wiring connections at the economizer modules terminals, and verify compliance with the installation wiring diagrams. For checkout, review the status of each configured parameter and perform the checkout tests.

Economizer Controller

Power Up

After the module is mounted and wired, apply power.

Power Up Delay

At power up (or after a power outage or brownout), the controller module begins a 5 minute power up delay before enabling mechanical cooling.

Initial Menu Display

On initial start-up, Honeywell displays on the first line and Economizer W7220 on the second line. After a brief pause, the revision of the software appears on the first line and the second line will be blank.

Power Loss

All setpoints and advanced settings are restored after any power loss or interruption.

Note: If power goes below 18 Vac, the controller module assumes a power loss and the 5 minute power up delay will become functional when power returns above 18 Vac.

Status

Use the Status menu (see Table 4, p. 12) to check the parameter values for the various devices and sensors configured.

Note: See "Controller User Interface and Keypad," p. 10" for information about menu navigation and use of the keypad.

Checkout Tests

NOTICE Compressor Damage!

Failure to ensure enough time for compressor start-up and shutdown between checkout tests could result in compressor damage. Do not short-cycle compressors.

Use the Checkout menu (Table 4, p. 12) to test the damper operation and any configured outputs. Only items that are configured are shown in the Checkout menu.

To perform checkout tests:

1. Scroll to the desired test in the Checkout menu using the Up and Down buttons.
2. Press Enter to select the item.
3. RUN? is displayed.
4. Press Enter to start the test.
5. The unit pauses and then displays IN PROGRESS.
6. When the test is complete, DONE appears.
7. When all parameters have been tested, press Menu Up to end the test (e.g. turn off the relay).

Notes:

• The checkout tests can all be performed at the time of installation or any time during the operation of the system.
• To disable economizer for functional testing (optional), use 10 mm wrench to loosen shaft coupling on actuator. After testing, securely tighten coupling onto damper shaft using minimum 120 lb-in. (13.6 Nm) to maximum 180 lb-in. (20.3 Nm) torque.

Troubleshooting

WARNING Hazardous Voltage!

Failure to disconnect power before servicing could result in death or serious injury. Disconnect all electric power, including remote disconnects before servicing. Follow proper lockout/tagout procedures to ensure the power can not be inadvertently energized. Verify that no power is present with a voltmeter.

NOTICE Compressor Damage!

Failure to ensure enough time for compressor start-up and shutdown between checkout tests could result in compressor damage. Do not short-cycle compressors.

The economizer controller provides alarm messages that display on the 2-line LCD. If one or more alarms are present and there has been no keypad activity for at least 5 minutes, the Alarms menu displays and cycles through the active alarms. You can also navigate to the Alarms menu at any time.

Note: Upon power up, the module waits 60 minutes before checking for alarms. This allows time for all the configured devices (e.g. sensors, actuator) to become operational. The exception is the MA sensor which will alarm immediately.

Table 10. FDD troubleshooting

Economizer Controller

To Clear an Alarm

Once the alarm has been identified and the cause has been removed (e.g. replaced faulty sensor), the alarm can be cleared from the display.

1. Navigate to the desired alarm.
2. Press Enter.
3. ERASE? is displayed.
4. Press Enter.
5. ALARM ERASED is displayed.
6. Press Menu Up to complete the action and return to the previous menu.

Note: If an alarm still exists after you clear it, it redisplays within 5 seconds.

Fault Detection and Diagnostics (FDD) Certification

The JADE controller is a certified FDD product (HJW10) by California Title 24, Part 6.

Figure 15. Ultra low leak economizer wiring diagram

This is a detailed wiring diagram for the ultra-low leak economizer, showing connections for various components such as sensors (MAT, OAT, IAQ, RA), actuators, control signals (Y1, Y2, EXH1, AUX1), power inputs, and fault relay connections. It includes notes referencing optional components and wiring requirements.

Notes:

• OPTIONAL POWER EXHAUST
• REQUIRED FOR OPTIONAL REFERENCE ENTHALPY CONTROL.
• REQUIRED FOR OPTIONAL COMPARATIVE ENTHALPY CONTROL.
• OPTIONAL MAS, RAS, RHS, OHS AND ASSOCIATED WIRING NOT USED WITH MOTORIZED (NON-MODULATING) OR MANUAL OUTSIDE AIR DAMPER.
• TO INSTALL OPTIONAL ECONOMIZERS, REMOVE PLUG PPM2A FROM PPF2, AND CONNECT ECONOMIZER PLUG PPM2.
• REQUIRED FOR OPTIONAL DRY BULB CONTROL
• OPTIONAL OCCUPANCY SENSOR CONNECTOR
• WIRES ARE ROUTED INTO CONTROL BOX FOR OPTIONAL CUSTOMER CONNECTIONS, IN USE WITH LOW-LEAK ECONOMIZERS.

Notes

Trane and American Standard create comfortable, energy efficient indoor environments for commercial and residential applications. For more information, please visit trane.com or americanstandardair.com.

Trane and American Standard have a policy of continuous product and product data improvement and reserve the right to change design and specifications without notice. We are committed to using environmentally conscious print practices.

ACC-SVN205D-EN 12 Jul 2024

Supersedes ACC-SVN205C-EN (Sep 2021)

©2024