Carrier 40QQ Series - HORIZONTAL AND VERTICAL ECONOMISER X ACCESSORY INSTALLATION INSTRUCTIONS; Economizer Safety, Functionality, and Contents

14
HORIZONTAL AND VERTICAL
ECONOMI$ER X ACCESSORY
INSTALLATION INSTRUCTIONS
Read these instructions completely before attempting to
install the
Horizontal EconoMi$er X Accessory.
SAFETY CONSIDERATIONS
Installation and servicing of air- conditioning equipment
can be hazardous due to system pressure and electrical
compone nts. Only trained and qualified service personnel
should install, repair, or service air- conditioning
equipment.
Untrained personnel can perform the basic maintenance
functions of replacing filters. All other operations should
be performed by trained service personnel. When working
on air- conditioning equipment, observe precautions in the
literature, tags, labels attached to the unit, and other safety
precautions that may apply. Follow all safety codes. Wear
safety glasses and work gloves.
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 we ar appropriate protec tive clothing,
safety glasses, and gloves when handling parts and
servicing roof top units.
GENERAL
IMPORTANT : These economizers meet all the
economizer requirements as laid out in California’s Title
24 ma ndatory section 120.2 (fault detection and
diagnostics).
The EconoMi$er X system utilizes the latest technology
available for integrating the use of free cooling with
mechanical cooling for packaged rooftop units. The
solid- state control system optimizes energy consumption,
zone comfort, and equipment cycling by operating the
compressor and PMV when the outdoor- air temperature is
too warm, integrating the compressor and PMV with
outdoor air when free cooling is available and closing the
PMV when outdoor- air temperature is t oo cold. Demand
control ventilation i s supported.
The EconoMi$er X system utilizes gear- drive technology
with a direct- mount spring return actuator that will close
upon loss of power. The EconoMi$er X system comes
standard with an outdoor air temperature sensor, mixed air
(or supply air) temperature sensor.
Standard barometric relief dampers provide natural
building pressurization control.
Table 4 – Type Horizontal and Vertical
All Sizes
Type Part Number
Horizontal CRECOMZR077A00
Vertical CRECOMZR076A00
B
A
HOOD
ALUMINUM
FILTER
FILTER
CLIP
CLEANABLE
ALUMINUM
FILTER
OUTSIDE AIR
RELIEF AIR
Economizer P/N A B Ship Wt.
CRECOMZR077A00 27.09” 29.19” 95 lb
CRECOMZR076A00 33.37” 17.43” 55 lb
Fig. 12 - EconoMi$er X Hood Detail
Table 5 – Package Contents
Package Number Qty. Contents
CRECOMZR077A00
1
1
1
18
1
1
1
1
Hood Assembly
Filter Access Door
Aluminum Filter
Screws
EconoMi$er X Assembly
Front Blank Off Panel
HH79ZZ007 Mixed Air
Temperature Sensor/Harness
48TMHSRSE- A20 Harness
CRECOMZR076A00
1
1
2
1
1
1
Hood Top and Sides
Hood Divider
Aluminum Filters
Econimizer X Assembly
HH79ZZ007 Mixed (Supply)
Temperature Sensor
48TMHSRSE- A20 Harness
Table 6 – EconoMi$er X Sensor Usage
Application
Economi$er X with Outdoor Air Dry Bulb
Sensor
Accessories Required
Outdoor Air Dry
Bulb
HH79ZZ007 is factory installed on economizer
Supply (mixed
air sensor)
HH79ZZ007 i s factory provided and field
installed
ACCESSORIES LIST
The EconoMi$er X has several field- installed accessories
available to optimize performance.
40QQ