Carrier CRECOMZR067A01, Installation Instructions Manual

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Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53480202-01 Printed in U.S.A. Form IIK-CRECOMZR67-04 Pg 1 11-18 Replaces: IIK-CRECOMZR67-03
Installation Instructions
Part No: CRECOMZR067A01, CRECOMZR069A01, and CRECOMZR071A01
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Accessories List . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Instructions for 48/50LC 07-12 Units Only . . . . . 10
Installing Optional HH57AC081 Single Outside Air
Enthalpy Sensor . . . . . . . . . . . . . . . . . . . . . . . . 13
Installing Differential Return Air Sensor . . . . . . . 14
California’s Title 24 High Temperature Limit
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Demand Controlled Ventilation (DCV) . . . . . . . . . 14
Remote (Downstairs) Monitoring of Controller’s
Fault Detection and Diagnostics . . . . . . . . . . . 15
GENERAL JADE W7220 CONTROLLER AND
SENSOR INFORMATION . . . . . . . . . . . . . . . . . 16
W7220 Economizer . . . . . . . . . . . . . . . . . . . . . . . . 16
User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Using the Keypad with Menus . . . . . . . . . . . . . . . 16
Using the Keypad with Settings and Parameters 16
Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
PROGRAMMING JADE W7220 CONTROLLER . . 16
Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
System Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Checkout Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
W7220 Economizer Module Wiring . . . . . . . . . . . 22
Time-out and Screen Saver . . . . . . . . . . . . . . . . . 22
START-UP AND OPERATION . . . . . . . . . . . . . . . . 22
Cooling, Unit with EconoMi$er® X . . . . . . . . . . . 22
Heating with EconoMi$er® X . . . . . . . . . . . . . . . . 22
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . 24
Power Loss (Outage or Brownout) . . . . . . . . . . . 24
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Clearing Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
SAFETY CONSIDERATIONS
Installation of this accessory can be hazardous due to
system pressures, electrical components and equipment, and
equipment locations (such as a roof or elevated surface).
Only trained qualified installers and service technicians
should install, start up, and service this equipment.
When installing this accessory, observe precautions in
the literature and on any labels attached to the equipment
and all other safety precautions may apply.
• Follow all safety codes.
• Wear safety glasses and work gloves.
• Use care in handling and installing the 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 poten-
tial for personal injury.
Understand the signal words DANGER, WARNING, CAU-
TION, 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 signi-
fies hazards which could result in personal injury or death.
CAUTION is used to identify unsafe practices, which may re-
sult in minor personal injury or product and property damage.
NOTE is used to highlight suggestions which will result
in enhanced installation, reliability, or operation.
GENERAL
The EconoMi$er® X system utilizes the latest technolo-
gy available for integrating the use of free cooling with me-
chanical cooling for packaged rooftop units. The code com-
pliant Jade W7220 control system optimizes energy con-
sumption, zone comfort, and equipment cycling by
operating the compressors when the outdoor-air temperature
is too warm, integrating the compressor with outdoor air
when free cooling is available, and locking out the compres-
WARNING
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could cause personal injury
or death. Before performing service or maintenance opera-
tions on the unit, always turn off main power switch to unit
and install lock(s) and lockout tag(s). Unit may have more
than one power switch. Ensure electrical service to rooftop
unit agrees with voltage and amperage listed on the unit rat-
ing plate.
CAUTION
CUT HAZARD
Failure to follow this caution may result in personal injury.
Sheet metal parts may have sharp edges or burrs. Use care
and wear appropriate protective clothing, safety glasses and
gloves when handling parts and servicing roof top units.
CAUTION
Failure to follow this caution may result in personal injury
and damage to the unit. Cover the duct opening as a precau-
tion so objects cannot fall into the return duct opening. Be
sure to remove the cover when installation is complete.
Small Rooftop Units
3 to 12.5 Tons
(48/50LC 14 Not Included)
Accessory Ultra Low Leak Vertical EconoMi$er
®
X Accessory