Carrier EconoMiser2 CRECOMZR087A00 Installation Instructions Manual

Table 1 — Package Contents
PART NUMBER QTY
18
CRECOMZR087A00
* The EconoMi$er2 assembly does not include an economizer controller.
IMPORTANT: Read these instructions completely before
attempting to install the horizontal EconoMi$er2 accessory.
SAFETY CONSIDERATIONS
Installation of this accessory can be hazardous due to system
pressures, electrical components, and equipment location (such as
a roof or elevated structure). Only trained, qualified installers and
service technicians should install, start-up, and service this
equipment.
When installing this accessory, observe precautions in the
literature, labels attached to the equipment, and any other safety
precautions that apply:
• Follow all safety codes
• Wear safety glasses and work gloves
• Use care in handling and installing this accessory
It is important to recognize safety information. This is the safety-
alert symbol: . When you see this symbol on the unit and in
instructions or manuals, be alert to the potential for personal
injury.
Understand the signal
CAUTION, and NOTE. These words are used with the safety-
alert symbol. DANGER identifies the most serious hazards which
will result in severe personal injury or death. WARNING signifies
hazards which could result in personal injury or death. CAUTION
is used to identify unsafe practices, which may result in minor
personal injury or product and property damage. NOTE is used to
highlight suggestions which will result in enhanced installation,
reliability, or operation.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53480393-01
Installation Instructions
Part No. CRECOMZR087A00
CONTENTS
1 Hood Assembly
1 Filter Access Door
1 Aluminum Filter
Screws
1 EconoMi$er2 Assembly*
Barometric Relief Hood
1
Assembly
1 Hood O/A Panel
1 O/A Panel Access Door
1 O/A Small Blank Off
1 O/A Large Blank Off
1 R/A Small Blank Off
1 R/A Large Blank Off
words DANGER, WARNING,
Printed in U.S.A.
Accessory Horizontal Ultra-Low Leak
The EconoMi$er2 system utilizes the latest technology available
for integrating the use of free cooling with mechanical cooling for
rooftop units.
This system utilizes gear-drive technology with a direct mount
spring return actuator that will close upon loss of power. The
EconoMi$er2 system comes standard with an outdoor air
temperature sensor. Field-installed CO
Separate barometric relief dampers provide natural building
pressurization control. An optional power exhaust system is
available for applications requiring even greater exhaust
capabilities.
EconoMi$er2 accessories require a 4 to 20 mA actuator signal
control. These accessories do not include a controller. The
EconoMi$er2 actuator is operated by a 4 to 20 mA signal from an
existing field-supplied DDC controller. See Table 1 for package
contents and Fig. 1 for EconoMi$er2 component locations. See
Table 2 for accessories list and Table 3 for sensor usage.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could cause personal injury and/
or death.
Disconnect power supply and install lockout tag before
attempting to install the accessory.
ACCESSORIES AND COMPLIANCE
Accessories List
The EconoMi$er2 system has several field-installed accessories
available to optimize performance. Refer to Table 2 for authorized
parts and power exhaust descriptions.
Table 2 — EconoMi$er2 Field-Installed Accessories
PART NUMBER
CRPWREXH028A01
CRPWREXH029A01
33ZCT55SPT
CRHUMDSN001B00
or
33CSENTHSW
CRHUMDSN001B00
or
33CSENTSEN
33ZCSENCO2
33ZCASPCO2
33ZCT55CO2
33CZT56CO2
Form IIK-CRECOMZR87-01 Pg 1
Small Rooftop Units
EconoMi$er2
7-1/2 to 12-1/2 Tons
GENERAL
sensors are available.
2
WARNING
DESCRIPTION
Small And Large Cabinet Power
Exhaust 208-230v 1Ph
Small And Large Cabinet Power
Exhaust 460-v 3Ph
Return Air Dry Bulb
Outdoor Air Enthalpy Sensor
Return Air Enthalpy Sensor
CO Room Sensor
2
Aspirator Box For Duct Mount
CO Sensor
2
Space Temperature And CO
Room Sensor With Override
Space Temperature And CO
Room Sensor With Override
And Setpoint
3-22 Replaces: NEW
2
2