Model:
BAYECON203AA/AB/AC
BAYECON204AA/AB/AC
BAYRLAY006A
Horizontal Economizer & Rain Hood
Used with:
*WCZ, YCZ, DCZ - 024, 036
*WCZ, YCZ, DCZ - 048, 060
(Required with *WCZ & *DCZ models)
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.
Use care when inserting the economizer in the return
air compartment, to prevent damaging the foil faced
insulation.
18-HE84D1-1D-EN
Installer’s Guide
ALL phases of this installation must comply with NATIONAL, STATE AND LOCAL CODES
WARNING:
HAZARDOUS VOLTAGE - DISCONNECT POWER BEFORE SERVICING
IMPORTANT:
After the Economizer installation you must
install an air filter rack ordered separately. Use:
BAYFLTR101B for *WCZ, YCZ, DCZ - 024, 036
BAYFLTR201B for *WCZ, YCZ, DCZ - 048, 060
When the economizer is installed in *WCZ & *DCZ models,
relay accessory kit BAYRLAY006A is required. Refer to
Figure 7 on page 7 to make your relay wiring connections
in the Control Box.
Inspect Contents
Y
ou must report damage and make claims to the transpor
-
tation company immediately. Report missing parts to your
supplier immediately and replace with authorized parts
only.
Identify Economizer Kit Contents
Refer to Figure 2 on page 3 to identify the kit contents.
ELECTRIC SHOCK HAZARD
Open and lock out all unit disconnects prior to ac-
cessory 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 actua-
tor; the spring-return assembly may release and
cause personal injury.
CAUTION
IMPORTANT —
This Document is
customer property
and
is to remain with this unit. Please return to service informa-
tion pack upon completion of work.
Install Economizer Kit
1.
Remove Power
D
isconnect and verify that power is off.
2.
Remove Access Panels
Remove these three (3) access panels
(see Figure 1, page 3):
• Control/Heat access panel
• Blower access panel
• Coil access panel
3.
BAYRLAY006A Installation (Required for
*WCZ & *DCZ units only, for *YCZ units
skip to step 4)
1. Remove wire harness that came attached to the
BAYECON Logic Module being installed.
IMPORTANT:
Do NOT remove the resistors from the
Logic Module. Also, Do NOT remove the YL & YL/BK
wires connected to SO and + on the Logic Module
2.
Locate the ICMC Board in the upper left hand corner
of the unit control box and the DFC board in the upper
center of the unit control box. See Figure 5, page 5.
3.
Using the existing holes in the back of the unit control
box, mount the relay bracket assembly using the 2
screws supplied with the BAYRLAY006A Kit. See
Figure 5, page 5.
4.
Route the BAYRLAY006A wire harness attached to
the relays to the logic module as shown in Figure 3 on
page 4.
5.
Connect the BAYRLAY006A to the economizer Logic
Module and make the field connections as shown in
Figure 7 on page 7.
