2
Table 1 — Package Usage and Contents
ACCESSORIES
The EconoMi$er has several field-installed accessories
available to optimize performance. The accessory options
include:
•
2-Stage Power Exhaust
•
Return Air Temperature Sensor/Wiring Harness
•
Outdoor Air Enthalpy Sensor
•
Return Air Enthalpy Sensor/Wiring Harness
•
CO
2
Sensor (wall mount) or duct mount with accessory
aspirator box
•
Aspirator Box
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can
be hazardous due to system pressures and electrical compo-
nents. Only trained and qualified service personnel should
install, repair, or service air-conditioning equipment.
When working on air-conditioning equipment, observe pre-
cautions in the literature, tags, and labels attached to the unit,
and other safety precautions that may apply. Be sure installa-
tion conforms to all applicable local and national codes.
VERTICAL ECONOMIZER INSTALLATION
(CRECOMZR004A01, 005A01)
1. To remove the existing unit filter access panel, raise
the panel and swing the bottom outward. The panel is
now disengaged from the track and can be removed.
Remove the indoor coil access panel and discard. See
Fig. 3.
Controller should be mounted in vertical position as
shown in Fig. 1 and Fig. 2.
2. Assemble the hood assembly as follows:
Remove the EconoMi$er hood from its packaging.
Locate the outdoor air opening panel. See Fig. 4.
3. Install the
1
/
8
x
3
/
4
in. and
1
/
2
x
3
/
4
in. seal strip on the
exhaust air hood side panels and the bottom bracket.
Assemble the exhaust air hood to the outdoor air open-
ing panel as shown in Fig. 4, using the screws pro-
vided. Do not attach hood assembly to unit at this
time.
4. Install the
1
/
8
x
3
/
4
in. seal strip on the outdoor air hood
top and side panels. Assemble the outdoor air hood to
the outdoor air opening panel as shown in Fig. 5, using
the screws provided. Do not attach hood assembly to
the unit at this time.
5. Slide the outdoor air inlet screens into the screen track
on the hood side panels. While holding the screens in
place, fasten the screen retainer to the hood using the
screws provided. Repeat the process for the barometric
exhaust air screen. Do not attach completed (Fig. 6)
hood assembly to unit at this time.
UNIT
PACKAGE NO.
QTY
CONTENTS
3 to 6
Ton
Vertical
CRECOMZR
004A01
1
Outdoor Air Opening Panel
1
Outdoor Air Hood Top
2
Outdoor Air Hood Sides
1
Exhaust Air Hood Top
2
Exhaust Air Hood Sides
1
Exhaust Air Bottom Bracket
2
Screen Retainers
2
Outdoor Air Inlet Screens
1
Exhaust Air Screen
60
3
/
4
in. No. 10 screws
1
Seal Strip —
1
/
8
x
3
/
4
in.
1
Seal Strip —
1
/
2
x
3
/
4
in.
1
Outdoor Air Block-Off Plate
1
EconoMi$er Assembly
1
Supply Air Sensor
7
1
/
2
to
12
1
/
2
Ton
Vertical
CRECOMZR
005A01
1
Outdoor Air Opening Panel
1
Outdoor Air Hood Top
2
Outdoor Air Hood Sides
1
Exhaust Air Hood Top
2
Exhaust Air Hood Sides
1
Exhaust Air Bottom Bracket
2
Screen Retainers
2
Outdoor Air Inlet Screens
1
Exhaust Air Screen
60
3
/
4
in. No. 10 screws
1
Seal Strip —
1
/
8
x
3
/
4
in.
1
Seal Strip —
1
/
2
x
3
/
4
in.
1
Outdoor Air Block-Off Plate
1
Return Air Block-Off Plate
1
EconoMi$er Assembly
1
Supply Air Sensor
3 to 6
Ton
Horizontal
7
1
/
2
to
12
1
/
2
Ton
Horizontal
CRECOMZR
006A01
(3 to 6 Ton only)
OR
CRECOMZR
007A01
1
Outdoor Air Opening Panel
1
Outdoor Air Hood Top
2
Outdoor Air Hood Sides
1
Exhaust Air Hood Top
2
Exhaust Air Hood Sides
1
Exhaust Air Bottom Bracket
2
Screen Retainers
2
Outdoor Air Inlet Screens
1
Exhaust Air Screen
60
5
/
8
in. No. 10 Screws
1
Seal Strip -
1
/
8
x
7
/
8
in.
1
Seal Strip -
3
/
4
x
3
/
4
in.
1
Outdoor Air Block-off Plate
1
EconoMi$er Assembly
1
Supply Air Sensor
Included with the
CRECOMZR 007A01
only
1
1
1
4
Return Air Block-off Plate
Return Air Top Filler Plate
Side Seal Bracket
Fastener Clips
Before performing service or maintenance operations on
unit, turn off main power switch to unit. If gas unit, shut off
gas supply before shutting off main power. Electrical shock
can cause personal injury or death. TAG DISCONNECT
SWITCH WITH A SUITABLE WARNING LABEL.
OUTDOOR-AIR
OPENING ACCESS PANEL
FILTER ACCESS
PANEL
Fig. 3 — Typical Access Panel Locations
(Vertical Economizer)
OUTDOOR AIR
OPENING PANEL
SEAL STRIP
EXHAUST AIR SCREEN
EXHAUST AIR
HOOD TOP
SCREEN
RETAINER
EXHAUST AIR
HOOD SIDES
EXHAUST AIR
BOTTOM BRACKET
Fig. 4 — Exhaust Air Hood Assembly
(Vertical EconoMi$er)
