American Standard BAYECON102A - User Manual

Model:
BAYECON101A
BAYECON102A
BAYRLAY004A (Relay required in WC* Units)
Down Discharge Economizer and Rain Hood
Used with:
2/4TC*,WC*,YC*,DC* *018-036A
2/4TC*,WC*,YC*, DC* *042-060A
Inspect Contents
You must report damage and make claims to the transporta-
tion company immediately. Report missing parts to your sup-
plier immediately and replace with authorized parts only.
3. Install Economizer Assembly
Note: You must first install the filter rack per the instruc-
tions provided and then install the economizer.
2. Swing the return air damper section down so that it rests
on the bottom of the unit. The economizer will sit
completely over the return air opening in the bottom of
the unit. See Figures 5 on page 4. Screw the economizer
assembly together with one assembly screw in the side of
the economizer. Tighten the linkage rod between the
return air dampers.
3. Insert 2 screws through the holes in the front face of the
unit and into the matching attachment holes in the econo
mizer assembly. See Figure 6 on page 4.
4. Insert a screw through the pre-punched hole in the side
flange of the return air damper and into the mating hole
in the economizer assembly and tighten. See Figure 5 on
page 4.
18-HE39D8-7
Identify Economizer Kit Contents
Refer to Figures 1 and 2 on page 2 to identify the kit
contents.
Install Economizer Kit
General
The economizer is a multi-damper design. It is installed in the
return air stream and is connected to the unit low voltage sup-
ply through wire leads. The economizer is fully accessible
through the Coil access panel.
Important: The Economizer installation requires that you first
install an air filter rack ordered separately. Use:
BAYFLTR101A for 2/4YC*, WC*, TC*, DC* *018-3036A
BAYFLTR201A for 2/4YC*, WC*, TC*, DC* *042-3060A.
1. Remove Power
Disconnect and verify that power is off.
2. Remove Access Panels
Remove these four (4) access panels (see Figure 3, page 2):
• Control/Heat access panel
• Blower access panel
• Coil access panel
• Horizontal Return Air panel (discard or store)
When the economizer is installed in WC* models, relay
accessory kit BAYRLAY004A is required. Refer to the drawing
on page 9 to make your relay wiring connections in the Control
Box.
Installer’s Guide
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.
HAZARDOUS VOLTAGE - DISCONNECT POWER BEFORE SERVICING
WARNING:
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 AC-
TUATOR; THE SPRING-RETURN ASSEMBLY MAY RELEASE
AND CAUSE PERSONAL INJURY.
WARNING
!
!
WARNING
Use care when inserting the economizer in the return air com-
partment, to prevent damaging the foil faced insulation.
CAUTION
!
1. The economizer ships with the return air damper folded
up to allow the assembly to fit through the Coil opening
in the side of the unit, see Figures 1 and 2 on page 2.
Insert the economizer assembly into the unit through the
Coil access panel opening. See Figure 4 on page 3.

Summary

General Economizer Information

Identify Economizer Kit Contents

Identify components using Figures 1 and 2 on page 2.

Inspect Contents

Report damage to the carrier and missing parts to the supplier immediately.

Install Economizer Kit

Remove Power

Disconnect and verify that power is off before proceeding.

Remove Access Panels

Remove four access panels: Control/Heat, Blower, Coil, and Horizontal Return Air.

Install Economizer Assembly

Install the economizer assembly after the filter rack is installed, as per instructions.

Install Rain Hood and Wiring

Install Rain Hood Assembly

Install the rainhood assembly, including the relief damper and mist eliminator.

Mount Mixed Air Sensor

Mount the Mixed Air sensor to the left Blower partition using two sheetmetal screws.

Route Main Wiring

Route the wire harness from the economizer through the coil grommet and into the control box.

Complete Installation and Checkout

Control Box Wiring

Complete wiring connections in the Control Box per diagrams on pages 8 and 9, securing wires.

Checkout Procedure

Run the checkout procedure on page 10 and adjust controller settings as needed.

Replace Access Panels

Reinstall the Coil access, Blower access, and Control/Heat access panels.

Motor and Enthalpy Checkout

Motor Operation Checkout

Operate the motor through its full stroke, checking for smooth travel and no binding.

Single Enthalpy Changeover Set Point

Set the enthalpy changeover point to return the outdoor air damper to minimum position when enthalpy rises above set point.

Enthalpy Checkout Procedures

Enthalpy Checkout Procedure Table 2

Table 2 details procedures for checking enthalpy operation, including sensor verification.

Location of Enthalpy Controls

Illustrates locations of enthalpy set point, minimum damper setting, and the status LED.

American Standard BAYECON102A Specifications

General

Brand	American Standard
Model	BAYECON102A
Category	Air Conditioner Accessories
Language	English