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CAUTION
!
CUT HAZARD
Failure to follow this warning could result in
personal injury.
Sheet metal parts may have sharp edges or burrs.
Use care and wear appropriate protective clothing,
safety glasses, and gloves when handling parts and
servicing roof top units.
GENERAL
IMPORTANT: These economizers meet all economizer
requirements as laid out in California's Title 24
mandatory section 120.2 (fault detection and diagnostics).
The EconoMi$er X system utilizes the latest technology
available for integrating the use of free cooling with
mechanical cooling for packaged rooftop units. The
solid- state control system optimizes energy consumption,
zone comfort, and equipment cycling by operating the
compressor and PMV when the outdoor- air temperature is
too warm, integrating the compressor and PMV with
outdoor air when free cooling is available and closing the
PMV when outdoor- air temperature is too cold. Demand
control ventilation is supported.
The EconoMi$er X system utilizes gear- drive technology
with a direct- mount spring return actuator that will close
upon loss of power. The EconoMi$er X system comes
standard with an outdoor air temperature sensor, mixed air
(or supply air) temperature sensor.
Standard barometric relief dampers provide natural
building pressurization control.
Table 5 – Type Horizontal and Vertical
Type
All Sizes
Horizontal
Vertical
A
B
OUTSIDE AIR
RELIEF AIR
Economizer P/N
CRECOMZR077A00
CRECOMZR076A00
Fig. 14 - EconoMi$er X Hood Detail
Part Number
CRECOMZR077A00
CRECOMZR076A00
HOOD
ALUMINUM
FILTER
FILTER
CLIP
CLEANABLE
ALUMINUM
FILTER
A
B
Ship Wt.
27.09"
29.19"
95 lb
33.37"
17.43"
55 lb
Table 6 – Package Contents
Package Number
Qty.
1
1
1
18
1
CRECOMZR077A00
1
1
1
1
1
2
CRECOMZR076A00
1
1
1
Table 7 – EconoMi$er X Sensor Usage
Economi$er X with Outdoor Air Dry Bulb
Application
Outdoor Air Dry
HH79ZZ007 is factory installed on economizer
Bulb
Supply (mixed
HH79ZZ007 is factory provided and field
air sensor)
installed
INSTALLATION - HORIZONTAL
1. Turn off unit power supply(s) and install lockout tag.
2. 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
and discarded. See Fig. 16.
WARNING
!
ELECTRIC SHOCK HAZARD
Failure to follow this warning could result in
personal injury or death.
Disconnect power supply and install lockout tag
before attempting to install accessory.
3. Remove the indoor coil access panel and discard. See
Fig. 16.
4. The EconoMi$er X hood assembly is shipped
assembled. Aluminum filter must be installed on
some models.
5. Set the EconoMi$er X upright. See Fig. 17.
6. Insert the EconoMi$er X assembly into the rooftop
unit positioning the EconoMi$er X to the far left side
of the opening. See Fig5. 19 and 20.
7. Slide the EconoMi$er X all the way back into the unit
until it locks into the horizontal opening of the unit.
8. Secure the EconoMi$er X mounting flanges to the
unit with the screws provided. See Fig. 19.
14
Contents
Hood Assembly
Filter Access Door
Aluminum Filter
Screws
EconoMi$er X Assembly
Front Blank Off Panel
HH79ZZ007 Mixed Air
Temperature Sensor/Harness
48TMHSRSE- A20 Harness
Hood Top and Sides
Hood Divider
Aluminum Filters
Econimizer X Assembly
HH79ZZ007 Mixed (Supply)
Temperature Sensor
48TMHSRSE- A20 Harness
Sensor
Accessories Required
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