TRANE BAYECON354 Instruction Manual

: July 15, 2024
: Trane

Table of Contents

TRANE BAYECON354
Product Usage Instructions
Introduction
General Information
Economizer Controller
Troubleshooting
References
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Download This Manual (PDF format)

TRANE BAYECON354

Specifications

Model Number: BAYECON354*
Used With: E/GB036-060 E/GD036-060
Manufacturer: Trane
Refrigerant: R-454B (A2L Flammable)
Copyright: Trane

Product Usage Instructions

Safety Warning
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air- conditioning equipment can be hazardous and requires specific knowledge and training.

Installation

Read the manual thoroughly before installing the unit. Ensure all field wiring is performed by qualified personnel
following NEC and local electrical codes.
Use only R-454B rated service equipment and components for proper handling of the refrigerant.

Frequently Asked Questions (FAQ)
Q: Can unqualified individuals install or service the equipment?
A: No, only qualified personnel should handle installation and servicing to prevent hazards and ensure proper operation.

Installation Instructions
0 to 100% Low Leak Economizer –Horizontal
Foundation® Packaged Cooling and Gas/Electric 3 to 5 Tons

SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air- conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are attached to the equipment.

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.

WARNING Indicates a potentially hazardous situation which, if not avoided, could esult 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.

WARNING
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.

WARNING
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.

WARNING
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.

WARNING

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

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.
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.

Item	Description	Qty
1	Low leak economizer assembly	1
2	Panel Fresh air hood, LH	1

Figure 1. Major economizer components — field installed option

Field Supplied Part

NOTICE
Corrosion Damage!
Failure to use recommended caulking/sealant could cause corrosion related failures to refrigerant components.

Table 1. Major economizer component list

Item	Description	Qty
3	Panel Fresh air hood, RH	1
4	Panel Fresh air hood, top	1
5	Mist eliminator	1
6	Panel Fresh air hood, bottom	1
7	Bracket bottom, Mist eliminator	2
8	End panel	1
9	Installation bag with screws	1
10	Harness, mixed air sensor	1
11	Bracket, mixed air sensor	1
12	Roll of Gasket	1
13	Literature	1
14	Mixed air sensor	1
15	Label	1
Qty	Decsription
---	---
1	Tube Sealant – Trane recommends Sikaflex 221 (SEL00439)

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.

Remove the filter access panel, unit end panel and horizontal return panel. Retain screws for later use. Discard unit end panel. See Figure 2.
Install the horizontal return panel onto downflow return opening removed in previous step using nine screws. Figure 3. $TRANE-BAYECON354- $4$$
Install economizer onto unit. Align edge of both sides of the economizer panel flange with LH and RH side post as shown in Figure 4. Economizer should rest on return base pan as shown. $TRANE-BAYECON354- $5$$
Install item 8 onto unit using 10 screws. See
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. $TRANE-BAYECON354- $7$$
Install Mixed Air Sensor; refer to Figure 7:
- Remove the front access panel and unit top cover of the unit.
- Remove mixed air sensor, two #6 screws and bracket from kit bag (item 11). Attach mixed air sensor to bracket using the two screws.
- Remove mixed air sensor wire harness from the bag (item 10). Connect harness to the economizer controller MAT pin.
- Route the mixed air sensor wire harness through the bushing located at the top of the evaporator coil and connect to the sensor. $TRANE-BAYECON354- $8$$
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.
Remove unit top cover and control box access panel. Route relay harness as shown in Figure 9.
- Locate economizer fault relay (EFR) wire harness (wires 163A and 164A looped near economizer section).
- Secure unterminated end of the harness with a wire tie in the control panel to the left side of the power terminal block (near the Customer Connection LTB terminal strip).
- Connect economizer fault relay (EFR) to smart thermostat. Strip 163A and 164A wires and individually wirenut them to the two fault input wires from the thermostat. Terminate the fault input wires on the appropriate input terminals on the thermostat. The thermostat wires need to be rated for 600V, 105C, and UL 1230 or 1231.
- After mounting and powering the thermostat, configure the thermostat to display a fault message (e.g., Economizer Fault) whenever the dry contact input goes high. Consult thermostat’s user manual for detailed instructions.
  Configure the thermostat Wi-Fi for connection to the Internet. Consult thermostat’s user manual for detailed instructions.
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
Reinstall filter access panel onto unit using two screws.
Using field supplied silicone sealant, seal all seams, cracks and gaps around the outdoor air damper as illustrated in Figure 12.

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

Table 2. Economizer module – left hand terminal blocks

Label	Type	Description

Table 3. Economizer module – right hand terminal blocks

Label	Type	Description

Top Right Terminal Block
| n/a| The first pin is not used

AUX2 I

| ****

24 Vac IN

AUX1 O

| ****

24 Vac OUT

| Programmable:

Exhaust fan 2 Output or ERV or System Alarm output

Use of the Keypad When Working with Menus

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

Table 4. Controller menu structure

**Menu| ****Parameter| Parameter Default Value| Parameter Range and Increment (a)| Parameter Recommended Value (b)| ****Notes**
---|---|---|---|---|---

STATUS

| ECON AVAIL(c)| NO| YES/NO| N/A| YES = Economizing available; the system can use Outdoor Air for free cooling when required.
ECONOMIZING(c)| NO| YES/NO| N/A| YES = Outdoor Air being used for 1st stage cooling.
OCCUPIED(c)| ****

NO

| YES/NO| N/A| YES = OCC signal received from space thermostat or unitary controller.

YES = 24 Vac on terminal OCC No = 0 Vac on terminal OCC.

HEAT PUMP| N/A| COOL HEAT| N/A| HEAT PUMP is not available.

COOL Y1-IN(c)

| OFF| ON/OFF| N/A| Y1-I signal from space thermostat or unitary controller for cooling stage 1.

ON = 24 Vac on term Y1-I OFF = 0 Vac on term Y1-I

COOL Y1-OUT(c)| OFF| ON/OFF| N/A| Cool Stage 1 Relay Output to mechanical cooling (Y1-OUT terminal).
COOL Y2-IN(c)| OFF| N/A| N/A| COOL Y2-IN is not available.
COOL Y2-OUT(c)| OFF| N/A| N/A| COOL Y2-OUT is not available.
MA TEMP(c)| . ºF| -40 to 140°F| N/A| Displays value of measured mixed air from MAT sensor. Displays –.- if not connected, short, or out- of-range.
DA TEMP| . ºF| -40 to 140°F| N/A| DA TEMP is not available.

OA TEMP(c)

| ****

._ ºF

| ****

-40 to 140°F

| ****

N/A

| Displays measured value of outdoor air temperature. Displays –°F if sensor sends invalid value, if not connected, short or out-of-range.

OA HUM(c)

| ****

%

| ****

0 to 100%

| ****

N/A

| Displays measured value of outdoor humidity from OA Sylk Bus sensor. Displays –% if not connected, short, or out- of- range.

RA TEMP(c)

| ****

._ ºF

| ****

0 to 140°F

| ****

N/A

| Displays measured value of return air temperature from RA Sylk Bus sensor. Displays –°F if sensor sends invalid value, if not connected, short or out-of- range.
RA HUM(c)| ****

%

| 0 to 100%| N/A| Displays measured value of return air humidity from RA Sylk Bus sensor. Displays –% if sensor sends invalid value, if not connected, short or out-of-range.
IN CO2(c)| **** _ ppm| 0 to 2000 ppm| N/A| Displays value of measured CO2 from CO2 sensor. Invalid if not connected, short or out-of-range. May be adjusted in Advanced menu by Zero offset and Span. 0 to 10 Vdc CO2 sensors require CO2 ZERO to be 400 and CO2 SPAN to be 1600 in Advanced Setup menu.
DCV STATUS(c)| N/A| ON/OFF| N/A| Displays ON if above setpoint and OFF if below setpoint, and ONLY if a CO2 sensor is connected.
DAMPER OUT(c)| 2.0V| 2.0 to 10.0 V| N/A| Displays output voltage or position to the damper actuator.(d)
ACT POS(c)| N/A| 0 to 100%| N/A| Displays actual position of actuator.
ACT COUNT(c)| N/A| 1 to 65,535| N/A| Displays number of times actuator has cycled. 1 Cycle equals the sum of 180° of movement in any direction.
ACTUATOR(c)| N/A| OK/Alarm (on Alarm menu)| N/A| Displays Error if voltage or torque is below actuator range

EXH1 OUT(c)

| ****

OFF

| ****

ON/OFF

| ****

N/A

| Output of EXH1 terminal. Displays ON when damper position reaches programmed percentage setpoint.

ON = 24 Vac Output; OFF = No Output.

EXH2 OUT| OFF| ON/OFF| N/A| EXH2 OUT is not available.
ERV| OFF| ON/OFF| N/A| ERV is not available.
MECH COOL ON(c)| 0| 0, 1, or 2| N/A| Displays number of mechanical cooling stages that are active.
FAN SPEED(c)| N/A| LOW or HIGH| N/A| Displays speed of fan on a 2-speed fan unit
W (HEAT IN)(c)| N/A| ON/OFF| N/A| Displays status of heat on a 2-speed fan unit.
Menu| Parameter| Parameter Default Value| Parameter Range and Increment (a)| Parameter Recommended Value (b)| Notes
---|---|---|---|---|---

SETPOINTS

| MAT SET(c)| 53ºF| 38 to 70°F;

increment by 1

| 53ºF| The economizer will modulate the OA damper to maintain the mixed air temperature at the setpoint.

LOW T LOCK(c)

| ****

32ºF

| ****

-45 to 80°F;

increment by 1

| ****

32ºF

| Setpoint determines outdoor temperature when the mechanical cooling cannot be turned on. Commonly referred to as the Compressor lockout. At or below the setpoint the Y1-O will not be energized on the controller.
DRYBLB SET(c)| 63ºF| 8 to 80°F;

increment by 1

| 67ºF| Setpoint determines where the economizer will assume outdoor air temperature is good for free cooling; e.g.; at 63ºF setpoint unit will economizer at 62ºF and below and not economize at 64 ºF and above. There is a a 2ºF deadband.
ENTH CURVE(c)|

ES3

| ES1, ES2, ES3, ES4, or ES5| ****

ES3

| Enthalpy boundary curves for economizing using single enthalpy.

See Table for description of enthalpy curves.

DCV SET(c)| 1100ppm| 500 to 200

ppm increment by 100

| 1100ppm| Displays ONLY if a CO2 sensor is connected. Setpoint for Demand Control Ventilation of space. Above the setpoint, the OA dampers will modulate open to bring in additional OA to maintain a space ppm level below the setpoint.
MIN POS(c)| 2.8 V| 2 to 10 Vdc| 2.8V/3.2V LO/2.8V HI| Displays ONLY if a CO2 sensor is NOT connected. With 2- speed fan units MIN POS L (low speed fan) and MIN POS H (high speed fan) settings are required. Default for MIN POS L is 3.2V and MIN POS H is 2.8V.
VENTMAX(c)| ****

2.8 V

| 2 to 10 Vdc or

100 to 9990 cfm

increment by 10

| 2.8V/3.2V LO/2.8V HI| Displays only if a CO2 sensor is connected. Used for Vbz (ventilation max cfm) setpoint. VENTMAX is the same setting as MIN POS would be if you did not have the CO2 sensor. Displays 2 to 10 V if <3 sensors (RA,OA and MA).

In DCV CAL ENABLE AUTO mode dampers controlled by CFM With 2-speed fan units VENTMAX L (low speed fan) and VENTMAX H (high speed fan) settings are required. Default for VENTMAX L is 3.2V and VENTMAX H is 2.8V.

**** VENTMIN(c)| 2.25 V| 2 to 10 Vdc or

100 to 9990 cfm

increment by 10

| 2.25V/2.5V LO/2.25V HI| Displays only if CO2 sensor is connected. Used for Va (ventilation min cfm) setpoint. This is the ventilation for less than maximum occupancy of the space. Displays 2 to 10 V if <3 sensors (RA,OA and MA). Va is only set if DCV is used.

In DCV CAL ENABLE AUTO mode dampers controlled by CFM With 2-speed fan units VENTMIN L (low speed fan) and VENTMIN H (high speed fan) settings are required. Default for VENTMIN L is 2.5V and VENTMIN H is 2.25V.

ERV OAT SP| 32ºF| 0 to 50°F;

increment by 1

| N/A| ERV OAT SP is not available.
EXH1 SET(c)| ****

50%

| ****

1 to 100%;

increment by 1

| 50%/65% LO/50% HI| Setpoint for OA damper position when exhaust fan 1 is powered by the economizer.

With 2-speed fan units Exh1 L (low speed fan) and Exh1 H (high speed fan) settings are required. Default for Exh1 L is 65% and Exh1 H is 50%

EXH2 SET| 75%| 0 to 100%;

increment by 1

| N/A| EXH2 SET is not available.

Menu

| ****

Parameter

| Parameter Default Value| Parameter Range and Increment (a)| Parameter Recommended Value (b)| ****

Notes

---|---|---|---|---|---

SYSTEM SETUP

AUX2 I(c)

| ****

N/A

| ****

Shutdown (SD) Heat (W1) HP(O)

HP(B)

| ****

Heat (W1)

| In CONV mode:

SD = Enables configuration of shutdown (default); W = Informs controller that system is in heating mode. NOTE: If using 2-speed fan mode, you must program

CONV mode for W. Shutdown is not available in the two-

speed fan mode. In HP O/B mode:

HP(O) = energize heat pump on Cool (default); HP(B) = energize heat pump on Heat.

**** FAN SPEED(c)| 1 speed| 1 speed/

2 speed

| See unit nameplate: Digit 15 = 0 or 1 – 1 speed;

Digit 15 = 7 or 9 – 2 speed

| Sets economizer controller for operation of 1 speed or 2 speed supply fan. The controller does not control the fan but positions the OA and RA dampers to the heating or cooling mode. See

page 23 for modes and position.

NOTE: 2-speed fan option also needs Heat (W1) programmed in AUX 2 In.

FAN CFM(c)

| 5000cfm| 100 to 15000

cfm; increment by 100

| ****

5000cfm

| ****

This is the capacity of the RTU. The value is found in the Unit Catalog. The cfm of the fan is only used with DCV CAL ENABLE AUO

AUX1 OUT

| ****

NONE

| NONE ERV EXH2 SYS| ****

NONE

| ****

AUX1 OUT is a programmable output used for System Alarm output.

OCC(c)| INPUT| INPUT or ALWAYS| ****

ALWAYS

| When using a setback thermostat with occupancy out (24 Vac), the 24 Vac is input INPUT to the OCC terminal. If no occupancy output from the thermostat then change program to ALWAYS OR add a jumper from terminal R to OCC terminal.
FACTORY DEFAULT(c)| NO| NO or YES| **** NO| Resets all set points to factory defaults when set to YES. LCD will briefly flash YES and change to NO but all parameters will change to factory default values.
ADVANCED SETUP| MA LO SET(c)| 45ºF| 35 to 55°F;

increment by 1°F

| 45ºF| Temp to activate Freeze Protection (close damper or modulate to MIN POS if temp falls below set value)
FREEZE POS(c)| CLO| CLO MIN| CLO| Damper position when freeze protection is active (closed or MIN POS).
CO2 ZERO(c)| 0ppm| 0 to 500 ppm;

increment by 10

| 0ppm| CO2 ppm level to match CO2 sensor start level. 0 to 10 Vdc CO2 sensors require CO2 ZERO to be 400.
CO2 SPAN(c)| 2000ppm| 1000 to 3000

ppm; increment by 50

| 2000ppm| CO2 ppm span to match CO2 sensor; e.g.; 500 to 1500 sensor output would be 500 CO2 zero and 1000 CO2 span. 0 to 10 Vdc CO2 sensors require CO2 SPAN to be 1600.
STG3 DLY| 2.0h| 0 min, 5 min, 15

min, then 15 min intervals. Up to 4h or OFF

| 2.0h| Delay after stage 2 for cool has been active. Turns on 2nd stage of mechanical cooling when economizer is 1st stage call and mechanical cooling is 2nd stage call. Allows three stages of cooling, 1 economizer and 2 mechanical. OFF = no Stage 3 cooling.

Menu

| ****

Parameter

| Parameter Default Value| Parameter Range and Increment (a)| Parameter Recommended Value (b)| ****

Notes

---|---|---|---|---|---

ADVANCED SETUP

| SD DMPR POS| CLO| **** CLO OPN| CLO| Indicates shutdown signal from space thermostat or unitary controller. When controller receives 24 Vac input on the SD terminal in conventional mode, the OA damper will open if programmed for OPN and OA damper will close if programmed for CLO. All other controls, e.g., Y1-O, EXH1, etc. will shutoff.
DCVCAL ENA| MAN| MAN (manual) AUTO| MAN| Turns on the DCV automatic control of the dampers. Resets ventilation based on the RA, OA and MA sensor conditions.

Requires all sensors (RA, OA, MA and CO2). This operation is not operable with a 2-speed fan unit.

MAT T CAL(c)| 0.0 F°| (+/-2.5°F)| 0.0 F°| Allows for the operator to adjust for an out-of-calibration temperature sensor
OA T CAL(c)| 0.0 F°| (+/-2.5°F)| 0.0 F°| Allows for the operator to adjust for an out-of-calibration temperature sensor
OA H CAL(c)| 0% RH| (+/-10% RH)| 0% RH| Allows for the operator to adjust for an out-of-calibration humidity sensor
RA T CAL(c)| 0.0 F°| (+/-2.5°F)| 0.0 F°| Allows for the operator to adjust for an out-of-calibration temperature sensor
RA H CAL(c)| 0% RH| (+/-10% RH)| 0% RH| Allows for the operator to adjust for an out-of-calibration humidity sensor
DA T CAL(c)| 0.0 F°| (+/-2.5°F)| 0.0 F°| DA T CAL is not available.

2SP FAN DELAY(c)

| ****

5 Minutes

| 0 to 20 minutes

in 1 minute increments.

| ****

5 Minutes

| When in economizing mode this is the delay for the high speed fan to try to satisfy the call for second stage cooling before the first stage mechanical cooling is enabled.
CHECKOUT| DAMPER VMIN-HS| N/A| N/A| N/A| Positions damper to VMIN position.
DAMPER VMAX-HS (LS)(c)| N/A| N/A| N/A| Positions damper to VMAX position. With 2-speed fan units the damper will position to VMAX low speed fan.

DAMPER OPEN(c)

| ****

N/A

| ****

N/A

| ****

N/A

| Positions damper to the full open position. Exhaust fan contacts enable during the DAMPER OPEN test.

Make sure you pause in this mode to allow for exhaust contacts to energize due to the delay in the system.

DAMPER CLOSE(c)| N/A| N/A| N/A| Positions damper to the fully closed position.
CONNECT Y1-O(c)| N/A| N/A| N/A| Closes the Y1-O relay (Y1-O).

See “Electrostatic Discharge!,” p. 17

CONNECT Y2-O(c)| N/A| N/A| N/A| N/A
CONNECT AUX1-O(c)| N/A| N/A| N/A| CONNECT AUX1 O energizes the AUX1-O output. If AUX1-O setting is:

NONE — No action taken
ERV — 24 Vac out. Turns on or signals an ERV that the conditions are not good for economizing but are good for ERV operation.
SYS — 24 Vax out. Issues a system alarm.

CONNECT EXH1(c)| N/A| N/A| N/A| Closes the power exhaust fan 1 relay (EXH1)
ALARMS(_)(e)| MAT SENS ERR| N/A| N/A| N/A|
CO2 SENS ERR(c)| N/A| N/A| N/A|
OAT SENS ERR(c)| N/A| N/A| N/A|
DA ENTHL ERR| N/A| N/A| N/A| DA ENTHL ERR is not available.
SYS ALARM| N/A| N/A| N/A| When AUX1-O is set to SYS and there is any alarm the AUX1-O terminal has 24 Vac out.
ACT UNDER V(c)| N/A| N/A| N/A| Voltage received by Actuator is above expected range
ACT OVER V(c)| N/A| N/A| N/A| Voltage received by Actuator is below expected range
ACT STALLED(c)| N/A| N/A| N/A| Actuator stopped before achieving commanded position

When values are displayed, pressing and holding the Up or Down button causes the display to automatically increment.
N/A = Not Applicable
This parameter is directly associated with the LLE economizer.
The Honeywell™ communicating actuator will report in XX.X% open versus XX.X Vdc for damper out.
Alarms display only when they are active. The menu title ALARMS (_) includes the number of active alarms in parenthesis ().

Economizer Controller
16 ACC-SVN205D-EN
Sequence of Operation
Table 5. Dry bulb operation no DCV (CO2 sensor) – 1 speed fan

DCV

| OA Good to economize?| ****

Y1-I

| ****

FAN SPD

| ****

Y1-O

| ****

Occupied

| ****

Unoccupied

---|---|---|---|---|---|---

None

| ****

No

None

| ****

Yes

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

DCV

| OA Good to economize?| ****

Y1-I

| ****

FAN SPD

| ****

Y1-O

| ****

Occupied

| ****

Unoccupied

---|---|---|---|---|---|---

Below CO2 set

| ****

No

Yes

Above CO2 set

| ****

No

Yes

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

DCV

| OA Good to economize?| ****

Y1-I

| ****

FAN SPD

| ****

Y1-O

| ****

Occupied

| ****

Unoccupied

---|---|---|---|---|---|---

None

| ****

No

None

| ****

Yes

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

DCV

| OA Good to economize?| ****

Y1-I

| ****

FAN SPD

| ****

Y1-O

| ****

Occupied

| ****

Unoccupied

---|---|---|---|---|---|---

Below set

| ****

No

Yes

DCV

| OA Good to economize?| ****

Y1-I

| ****

FAN SPD

| ****

Y1-O

| ****

Occupied

| ****

Unoccupied

---|---|---|---|---|---|---

Above set

| ****

No

Yes

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.

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.
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.

There are 5 boundaries (setpoints ES1 through ES5), which are defined by dry bulb temperature, enthalpy and dew point. See Table 9, p. 17.
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)

| Temp.| Temp.| | Point P1| Point P2|
---|---|---|---|---|---|---
| dry-| dew| Enth.|
| | | |
Enth.| Bulb| point| (btu/lb/| Temp.| Humid.| Temp.| Humid.|
Curve| (ºF)| (ºF)| da)| ºF| %RH| ºF| %RH|
ES1| 80.0| 60.0| 28.0| 80.0| 36.8| 66.3| 80.1|
ES2| 75.0| 57.0| 26.0| 75.0| 39.6| 63.3| 80.0|
ES3| 70.0| 54.0| 24.0| 70.0| 42.3| 59.7| 81.4|
ES4| 65.0| 51.0| 22.0| 65.0| 44.8| 55.7| 84.2|
ES5| 60.0| 48.0| 20.0| 60.0| 46.9| 51.3| 88.5|
HL| 86.0| 66.0| 32.4| 86.0| 38.9| 72.4| 80.3|

Figure 14. Single enthalpy curve and boundaries

$TRANE-BAYECON354- $20$$

Note: When the OA temperature, OA humidity, and the OA dew point are all below the selected boundary, the economizer sets the economizing mode to YES (economizing is available).

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.

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:

Scroll to the desired test in the Checkout menu using the buttons.
Press the button to select the item.
RUN? is displayed.
Press to start the test.
The unit pauses and then displays IN PROGRESS.
When the test is complete, DONE appears.
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

| FAULTS
---|---
TESTS| Air temp. sensor failure/ fault| Not econo- mizing when it should| Econo- mizing when it should not| Damper not modula- ting| Excess outdoor air
Damper Stuck Open| | | x| x| x
Damper Stuck at Minimum| | x| | x|
Bad or Unplugged Actuator| | x| x| x|
Sensor Hard Failure| x| x| x| | x
Actuator Mechanically Disconnected| | ****

x

| ****

x

| ****

x

| ****

x

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.

Navigate to the desired alarm.
Press .
ERASE? is displayed.
Press .
ALARM ERASED is displayed.
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

$TRANE-BAYECON354- $1$$ 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)