Table of Contents
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Accessory Ultra Low Leak Vertical EconoMi$er
Part No: CRECOMZR067A01, CRECOMZR069A01, and CRECOMZR071A01
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Accessories List . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Instructions for 48/50LC 07-12 Units Only . . . . . 10
Enthalpy Sensor . . . . . . . . . . . . . . . . . . . . . . . . 13
Installing Differential Return Air Sensor . . . . . . . 14
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Demand Controlled Ventilation (DCV) . . . . . . . . . 14
Fault Detection and Diagnostics . . . . . . . . . . . 15
SENSOR INFORMATION . . . . . . . . . . . . . . . . . 16
W7220 Economizer . . . . . . . . . . . . . . . . . . . . . . . . 16
User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Using the Keypad with Menus . . . . . . . . . . . . . . . 16
Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Setpoints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
System Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Checkout Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
W7220 Economizer Module Wiring . . . . . . . . . . . 22
Time-out and Screen Saver . . . . . . . . . . . . . . . . . 22
START-UP AND OPERATION . . . . . . . . . . . . . . . . 22
Cooling, Unit with EconoMi$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.
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
Installation Instructions
Page
Printed in U.S.A.
Form IIK-CRECOMZR67-04
Small Rooftop Units
(48/50LC 14 Not Included)
• 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
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.
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.
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-
Pg 1
11-18
3 to 12.5 Tons
®
X Accessory
. When you see this symbol on
Replaces: IIK-CRECOMZR67-03
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Table of Contents
Related Manuals for Carrier CRECOMZR067A01
Summary of Contents for Carrier CRECOMZR067A01
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Page 1: Table Of Contents
(48/50LC 14 Not Included) ® Accessory Ultra Low Leak Vertical EconoMi$er X Accessory Installation Instructions Part No: CRECOMZR067A01, CRECOMZR069A01, and CRECOMZR071A01 • Follow all safety codes. CONTENTS • Wear safety glasses and work gloves. Page • Use care in handling and installing the accessory. -
Page 2: General
IMPORTANT: Read these instructions completely before RGH/RAH 072-120 CRECOMZR069A01 attempting to install the accessory economizer. RHH 072-102 RHS 090-120 Extra Large Cabinet Table 1 — Carrier Usage Chart RAS/RGS 150 RGH/RAH 150 CRECOMZR071A01 RHS 150 CARRIER MODEL NUMBER ECONOMI$ER ®... -
Page 3: Accessories List
® Fig. 1 — EconoMi$er X Component Locations Accessories List (CRECOMZR067A01 Shown) The EconoMi$er X system has several field-installed ac- cessories available to optimize performance. Refer to Table 6 For 48/50LC 07-12 Instructions, see “Instructions for 48/50LC for authorized parts and power exhaust descriptions. -
Page 4: Installation
ECONOMI$ER X 12-PIN FEMALE PLUG ® Fig. 3 — EconoMi$er X Assembly Installed on HVAC Unit (CRECOMZR067A01 Shown) UNIT FILTER RACK Fig. 5 — Connect EconoMi$er X Harness to Unit PL6 Economizer Harness Remove and save the 12-pin jumper plug from the unit... - Page 5 Fig. 7 — Mount Controller Assembly in Unit Control Box (Some control box configurations may differ) 11. Unplug the 10-pin female ECON plug currently con- Fig. 9 — Connect 10-pin Plugs Together nected to the Central Terminal Board (CTB). See 13.
- Page 6 4-PIN MALE PLUG 48TMHSRSE--A20 FROM CONTROLLER HARNESS CENTRAL TERMINAL BOARD Fig. 13 — Connect 48TMHSRSE--A20 Harness to Harness from Controller 18. Route the 4-wire 48TMHSRSE--A20 harness through the divider between the control box and the indoor Fig. 11 — Connect Red and Brown Wires to Central blower section.
- Page 7 MIXED AIR HOOD DIVIDER TEMPERATURE SENSOR SHIP WT. ECONOMIZER P/N (in.) (in.) (in.) (in.) (lb) CRECOMZR067A01 30.37 17.43 19.05 29.50 55 lb CRECOMZR069A01 40.37 22.28 24.48 36.27 80 lb 50HE403589 CRECOMZR071A01 52.92 27.03 33.41 46.92 98 lb 2-GREEN WIRE NOTE: The CRECOMZR071A01 hood has 2 aluminum filters and a HARNESS hood filter divider that installs between the filters.
- Page 8 2500 2000 FILTER DOOR CRECOMZR067A01 1500 1000 CRECOMZR069A01 CRECOMZR071A01 0.05 0.15 0.25 RETURN DUCT STATIC PRESSURE (in. wg) ECONOMI$ER X Fig. 21 — Barometric Relief Flow Capacity HOOD 6000 Fig. 20 — Install EconoMi$er X Hood and Unit Filter Access Door...
- Page 9 Fig. 23 — Typical EconoMi$er X Wiring Diagram for 1 or 2 Speed Units (Not for 48/50LC 07-12 Units)
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Page 10: Instructions For 48/50Lc 07-12 Units Only
Step LC3. The 48/50LC 07-12 units that do not have a factory-installed economizer will have a new Jade W7220 controller wiring harness shipped in the control box section of the HVAC unit. This harness, Carrier part number 48LCHSRADH--A00, is shown below in Fig. 26 and 27. - Page 11 are labeled to easily identify the plug-in location on the controller. Step LC5. Locate the Compressor Staging Control (CSC) board in the HVAC unit. When a field-installed econo- mizer is used the J5 jumper on the CSC must be removed. Remove the J5 jumper. See Fig. 28. Step LC6.
- Page 12 48/50LC 07-12 units and must be field connected to the W7220 controller provided with the economizer. 2. Harness attached to the W7220 controller from the Carrier factory is removed and not used with 48/50LC 07-12 units. Fig. 28 — Typical Wiring Diagram For 48/50LC 07-12 Units...
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Page 13: Installing Optional Hh57Ac081 Single Outside Air Enthalpy Sensor
the W7220 Jade controller. There are 5 enthalpy boundaries Installing Optional HH57AC081 Single Outside (setpoints ES1 through ES5), which are defined by dry bulb Air Enthalpy Sensor temperature, enthalpy, and dew point. ES3 is the default set- When using the HH57AC081 (Honeywell C7400S) enthal- ting. -
Page 14: Installing Differential Return Air Sensor
Installing Differential Return Air Sensor Table 9 — California Title 24 Regional High Limit Dry The CRDIFRASN01A00 differential return sensor kit Bulb Temperature Settings must be field mounted in the system’s return duct work. The kit includes a wiring harness, that connects the EconoMi$er REQUIRED HIGH LIMIT X harness in the return chamber of the unit, to the provided (ECONOMIZER OFF... -
Page 15: Remote (Downstairs) Monitoring Of Controller's Fault Detection And Diagnostics
Remote (Downstairs) Monitoring of Control- ler’s Fault Detection and Diagnostics FURNACE, AIR HANDLER, OR RTU Many codes including IECC, Title 24, and ASHRAE 90.1 require that the economizer’s faults be accessible by operat- ing or service personal, or annunciated locally on zone ther- mostat. -
Page 16: General Jade W7220 Controller And Sensor Information
NOTE: When values are displayed, pressing and holding the ▲ GENERAL JADE W7220 CONTROLLER AND or ▼ button causes the display to automatically increment. SENSOR INFORMATION Press the (Enter) button to accept the displayed value W7220 Economizer and store it in nonvolatile RAM. The economizer controller used on electromechanical “CHANGE STORED”... -
Page 17: System Setup
• FAN TYPE: Set for either single or 2 speed. The default System Setup is 2 speed. (See Note 3 below.) • INSTALL: Use to set the current date. Use the keypad • AUX1 OUT: If remote Fault Detection and Diagnostic buttons to scroll to the correct date. - Page 18 Table 11 — Menu Structure* PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT† ECONOMIZING AVAILABLE ECONO AVAIL YES/NO YES = economizing available; the system can use outside air for free cooling when required ECONOMIZING ACTIVE ECONOMIZING YES/NO YES = Outside air being used for first stage cooling. NO = Economizing not active OCCUPIED YES = OCC signal received from space thermostat or unitary controller.
- Page 19 Table 11 — Menu Structure*(cont) PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT† ENERGY RECOVERY UNIT RELAY OUTPUT Output of AUX terminal; displays only if AUX = ERV ON/OFF ON = relay closed OFF = relay open STATUS MECH COOL ON 0, 1, or 2 Displays stage of mechanical cooling that is active.
- Page 20 Table 11 — Menu Structure*(cont) PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT† EXHAUST FAN SETPOINT AT HIGH SPEED (on 2 speed unit) 0 to 100%; EXH1 H SET Setpoint for OA damper position when exhaust fan is powered by the Increment by 1 economizer EXHAUST FAN STAGE 2 SETPOINT AT LOW SPEED...
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Page 21: Checkout Tests
Table 11 — Menu Structure*(cont) PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT† DAMPER VMIN-HS Positions OA damper to VMIN High Speed position DAMPER VMAX-HS Positions OA damper to VMAX High Speed position DAMPER OPEN Positions OA damper to the full open position. DAMPER CLOSE Positions damper to the fully closed position CONNECT Y1-O... -
Page 22: W7220 Economizer Module Wiring
W7220 Economizer Module Wiring START-UP AND OPERATION Use Tables 12 and 13 to locate the wiring terminals for the Cooling, Unit with EconoMi$er ® economizer module. For Occupied mode operation of EconoMi$er X system, there must be a 24-v signal at terminals R and OCC (provided Table 12 —... - Page 23 Table 14 — Damper Position Control, 2-Speed Fan Motor, Economizer Cooling Not Available INPUT VOLTAGE 24-V 24-V 24-V 24-V 24-V 24-V 24-V 24-V SUPPLY FAN MOTOR SPEED SUPPLY FAN HIGH HIGH MOTOR SPEED DAMPER POSITION No CO Sensor CLOSED MIN POS-L MIN POS-L MIN POS-H MIN POS-H...
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Page 24: Troubleshooting
The unit will remain in checkout for 10 minutes, then return to normal operation. checkout mode without input? © Carrier Corporation 2018 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.