Download Print this page

Trane Technologies BAYECON205A Installer's Manual

Horizontal economizer and rain hood

Advertisement

Quick Links

Model:
BAYECON205A
BAYECON206A
BAYRLAY004B
Note: * denotes a character other than a "Z."
WARNING:
ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
IMPORTANT — This Document is customer property
and is to remain with this unit. Please return to service
information pack upon completion of work.
General
The economizer is a multi-damper design. It inserts into
the return air stream and is connected to the unit low
voltage supply through wire leads. The economizer is
fully accessible through an access panel.
IMPORTANT: After the Economizer installation you
must install an air filter rack ordered separately. Use:
BAYFLTR101 for *DC*, *TC*, *WC*, *YC* *018-036
BAYFLTR201 for *DC*, *TC*, *WC*, *YC* *042-060.
When the economizer is installed in WC* models,
relay accessory kit BAYRLAY004B is required. Refer
to drawing to make your relay wiring connections in
the Control Box.
Identify Economizer Kit Contents
Refer to Figure 2 to identify the kit contents.
Inspect Contents
You must report damage and make claims to the
transportation company immediately. Report missing
parts to your supplier immediately and replace with
authorized parts only.
ELECTRIC SHOCK HAZARD
Open and lock out all unit disconnects prior to
accessory installation or unit maintenance, to
prevent injury or death from electrical shock or
contact with moving parts.
SAFETY HAZARD
Do not remove end covers from Economizer
actuator; the spring-return assembly may
release and cause personal injury.
Installer's Guide
Horizontal Economizer and Rain Hood
Used with:
2/4/5DC*, TC*, WC*, YC* *018-036
2/4/5DC*, TC*, WC*, YC* *042-060
(Required in WC* Units)
HAZARDOUS VOLTAGE - DISCONNECT POWER BEFORE SERVICING
18-HE139D1-1A-EN
Install Economizer Kit
1. Remove the unit economizer/filter access panel,
the evaporator coil and blower access panel,
and the electrical control box access panel, see
Figure 1.
2. Filter frame must be installed prior to economizer
installation.
3. Apply two gaskets to horizontal economizer
mounting flanges. See Figure 2.
4a. Small Cabinet - BAYECON205A
(*DC*,*TC*,*WC*,*YC* *018 to 036)
Set the horizontal economizer over the horizontal
return air opening on the unit. The notches in the
bottom flange of the economizer clear the two
existing screws below the return air opening of
the unit.
4b. Medium Cabinet Only - BAYECON206A
(*DC*,*TC*,*WC*,*YC* *042 to 060)
Apply a gasket to the economizer and slide
the top flange of the economizer under the lip
between the top and bottom sections of the
unit. Mate the notches on the top flange of the
economizer with the existing screws between
the top and bottom sections of the unit. The
notches on the bottom flange of the economizer
clear the two existing screws below the return
air opening of the unit.
CAUTION
Use care when inserting the economizer in the
return air compartment, to prevent damaging
the foil faced insulation.

Advertisement

loading
Need help?

Need help?

Do you have a question about the BAYECON205A and is the answer not in the manual?

Questions and answers

Summary of Contents for Trane Technologies BAYECON205A

  • Page 1 3. Apply two gaskets to horizontal economizer mounting flanges. See Figure 2. IMPORTANT: After the Economizer installation you 4a. Small Cabinet - BAYECON205A must install an air filter rack ordered separately. Use: (*DC*,*TC*,*WC*,*YC* *018 to 036) BAYFLTR101 for *DC*, *TC*, *WC*, *YC* *018-036 Set the horizontal economizer over the horizontal BAYFLTR201 for *DC*, *TC*, *WC*, *YC* *042-060.
  • Page 2 INSTALLER’S GUIDE 11. Connect the two (2) Mixed Air Sensor wires (pulled 5. Drill three (3) 9/64” holes through the mating holes in from harness) to the mating pigtail wires (with Stake- the top flange of economizer and into the unit. Then, Ons) from the Mixed Air Sensor.
  • Page 3 Gaskets (2) Rain Hood Duct Mixed Air Sensor Note: BAYECON205A economizer only contains two clearance notches in the top flange. BAYECON206A shown. Figure 2. Apply Two Gaskets to Mounting Flanges 1.) From 2.) Continue Routing 3.) Pull the 2 Mixed Air Sensor...
  • Page 4 INSTALLER’S GUIDE 1.80” 2.82” See View ‘A’ Mount the Mixed Air View ‘A’ Approximate Sensor to the partition Mounting Dimensions using two (2) sheetmetal screws. See view A for approximate positioning Figure 4. Mount Mixed Air Sensor in Blower Compartment...
  • Page 5 INSTALLER’S GUIDE Figure 5. 5TCC/YCC Economizer Connection Diagram...
  • Page 6 INSTALLER’S GUIDE Figure 6. 5WCC Economizer Connection Diagram...
  • Page 7 INSTALLER’S GUIDE Figure 7. 2/4TC*/YC* Economizer Connection Diagram (“*” May Be “C”, “X”, “Y”)
  • Page 8 INSTALLER’S GUIDE Figure 8. 2/4WC* Economizer Connection Diagram (“*” May Be “C”, “X”, “Y”)
  • Page 9: Spring Return

    INSTALLER’S GUIDE Table 1. Motor Operation Checkout DRIVE MOTOR OPEN DRIVE MOTOR CLOSED SPRING RETURN Power to TR and TR1, jumper T and T1 Disconnect jumper at T or T1 and Disconnect power at TR and TR1 disconnect P or P1, if connected SINGLE ENTHALPY CHANGEOVER SET POINT CONTROL POINT CONTROL...
  • Page 10 INSTALLER’S GUIDE Table 2. Temp vs. OHM Values for MAS (Mixed Air Sensor) Temp vs. OHM for MAS (Mixed Air Sensor) Temp F Temp C R(K OHMS) DC Volts 33.8 9.576 3.910 35.6 9.092 3.882 37.4 8.636 3.894 39.2 8.204 3.863 41.0 7.796...
  • Page 11: Checkout And Troubleshooting

    INSTALLER’S GUIDE CHECKOUT - For Units with a Honeywell W7212 Control CHECKOUT AND TROUBLESHOOTING W7212 Checkout requires a 9V battery, 620 ohm, 1.2K ohm, 5.6K ohm, and 6.8K ohm resistors. Use Table 4 and Fig. 8 for checkout. CAUTION Open DC VOLTMETER Equipment Damage Hazard.
  • Page 12 INSTALLER’S GUIDE Table 3. Checkout for W7212, W7213, W7214 Economizer Connected to Honeywell Actuator (Cont.) Step Checkout Procedure Proper Response DIFFERENTIAL ENTHALPY Execute stop one, Checkout Preparation. ― Turn DCV MAX to mid position. Place 620 ohm resistor across S and + (white sleeve resistor makes OA enthalpy low).
  • Page 13 INSTALLER’S GUIDE Troubleshooting - No Minimum Fresh Air Minimum Fresh Air Damper will not open Locate Minimum Check for 24 volts Is 24V present to Position across TR and Green "G" lead at 24 volts No voltage Potentiometer on TR1 terminals on Logic Module Logic Module.
  • Page 14 INSTALLER’S GUIDE Troubleshooting - Unit Will Not Economize Dampers will not open beyond minimum position during 1 stage cooling. Jumper across the Ambient must be below 70F to activate Is OD ambient OAS terminals to Is OAS closed? economizer beyond minimum position fresh below 70F? close circuit air opening.
  • Page 15 INSTALLER’S GUIDE Troubleshooting - 2nd Stage Inoperable Compressor will not energize when space conditions rise. Install a 2 stage thermostat and Is a 2-stage Is thermostat's Y2 Wire per Installer's wire according to economizer thermostat connected to unit's YL Guide. Installer's Guide applied? Troubleshoot why...
  • Page 16 INSTALLER’S GUIDE Troubleshooting - Dampers Open With G Dampers drive to 100% open during a "Continuous Fan" call. (drives beyond minimum position setting) Ensure there is not a call for cooling. Rotate Minimum Position potentiometer fully Measure resistance of Adjust Minimum Does damper green resistor Position to desired...
  • Page 17 INSTALLER’S GUIDE Troubleshooting - Mixed Air Sensor Dampers drive to 100% open although the mixed air temp is below 55F. It can be possible for the tip of the MAS to twist near the Remove MAS thermistor which causes the wires from "T"...
  • Page 18 INSTALLER’S GUIDE Troubleshooting - Logic Module Failures Logic Module has repeated failures Remove MAS wires from "T" and "T1" terminals on logic module. Measure resistance from either MAS wire to cabinet ground Check other terminals for Replace MAS any continuity? shorting.
  • Page 19 About Trane and American Standard Heating and Air Conditioning Trane and American Standard create comfortable, energy efficient indoor environments for residential applications. For more information, please visit www.trane.com or www.americanstandardair.com The manufacturer has a policy of continuous data improvement and it reserves the right to change design and specifications without notice. We are committed to using environmentally conscious print practices.

This manual is also suitable for:

Bayrlay004bBayecon206a