Table of Contents
Advertisement
P/Ns CRECOMZR077A00, CRECOMZR079A00,CRECOMZR081A00
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
ACCESSORIES LIST . . . . . . . . . . . . . . . . . . . . . . . . 3
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
07-12 UNITS ONLY . . . . . . . . . . . . . . . . . . . . . . 11
Enthalpy Sensor . . . . . . . . . . . . . . . . . . . . . . . . 14
Installing Differential Return Air Sensor . . . . . . . 15
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Demand Controlled Ventilation (DCV) . . . . . . . . . 15
Fault Detection and Diagnostics . . . . . . . . . . . 16
SENSOR INFORMATION . . . . . . . . . . . . . . . . . 17
W7220 Economizer . . . . . . . . . . . . . . . . . . . . . . . . 17
User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Using the Keypad with Menus . . . . . . . . . . . . . . . 17
Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Programming the Jade W2770 Controller . . . . . . 17
Checkout Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
SETUP AND CONFIGURATION . . . . . . . . . . . . . . 23
W7220 Economizer Module Wiring . . . . . . . . . . . 23
Time-out and Screen Saver . . . . . . . . . . . . . . . . . 24
START-UP AND OPERATION . . . . . . . . . . . . . . . . 24
Cooling with EconoMi$er X . . . . . . . . . . . . . . . . . 24
Heating with EconoMi$er X . . . . . . . . . . . . . . . . . 24
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . 25
Power Loss (Outage or Brownout) . . . . . . . . . . . 25
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
• CLEARING ALARMS
SAFETY CONSIDERATIONS
Installation of this accessory can be hazardous due to system
pressures, electrical components and equipment, and equip-
ment locations (such as a roof or elevated surface). Only
trained qualified installers and service technicians should in-
stall, start-up, and service this equipment.
When installing this accessory, observe precautions in the litera-
ture and on any labels attached to the equipment and all other safe-
ty 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. 04-53480208-01
Installation Instructions
Printed in U.S.A.
Form IIK-CRECOMZR77-03
Small Rooftop Products
(48/50LC 14 Not Included)
Horizontal EconoMi$er X Accessory
•
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 in-
structions or manuals, be alert to the potential 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 en-
hanced 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
IMPORTANT: These economizers meet all the economizer
requirements as laid out in California's Title 24 mandatory
section 120.2 (fault detection and diagnostics).
Pg 1
Select 3 to 12 ½ Tons
11-18
Replaces: NEW
Advertisement
Table of Contents
Subscribe to Our Youtube Channel
Related Manuals for Carrier CRECOMZR077A00
Summary of Contents for Carrier CRECOMZR077A00
-
Page 1: Table Of Contents
Small Rooftop Products Select 3 to 12 ½ Tons (48/50LC 14 Not Included) Horizontal EconoMi$er X Accessory Installation Instructions P/Ns CRECOMZR077A00, CRECOMZR079A00,CRECOMZR081A00 • Follow all safety codes CONTENTS • Wear safety glasses and work gloves SAFETY CONSIDERATIONS ....1 •... - Page 2 See Table 1-3 for package usage. See Table 4 for package con- RHX/RHH 036-060 tents. See Table 5 for sensor usage. RAX/RGX 036-060 Large Cabinet Table 1 — Carrier Package Usage RAH/RGH 072-120 RAS/RGS 090-150 CRECOMZR079A00 ECONOMI$ER X RHH 072-102...
-
Page 3: Accessories List
DESCRIPTION PART NUMBER HH77ZZ007 Mixed Air Temp Sensor Small & Large Cabinet Power Exhaust (ring terminal)* CRPWREXH028A01 208/230-v 1 Ph CRECOMZR077A00 48TMHSRSE--A20 4-Wire Harness* Small & Large Cabinet Power Exhaust CRPWREXH029A01 Hood Assembly 460-v 3 Ph Aluminum Filter Extra Large Cabinet Power Exhaust... - Page 4 Fig. 5 — Top View of EconoMi$er X Installation ALUMINUM FILTER FILTER CLIP CLEANABLE ALUMINUM FILTER OUTSIDE AIR RELIEF AIR ECONOMIZER P/N SHIP WT. 25.1” 29.19” 95 lb CRECOMZR077A00 25.1” 37.25” 150 lb CRECOMZR079A00 24.81” 53.36” 245 lb CRECOMZR081A00 Fig. 3 — EconoMi$er X Hood Detail...
- Page 5 Outside Air Barometric Temperature FRONT BLANK-OFF PANEL Relief Dampers Sensor ECONOMI$ER X HORIZONTAL HOOD BLANK-OFF HVAC Filters Fig. 8 — Horizontal Return Opening Blank-Off Panel Outdoor Mounting Screws Air Damper Fig. 6 — EconoMi$er X Installed in Unit FRONT BLANK-OFF PANEL Slide the EconoMi$er X assembly all the way back into the unit until it locks into the horizontal opening of the HVAC (heating, ventilation and air conditioning) unit.
- Page 6 13. On some units, the return damper does not reach to the top of the horizontal return opening in the unit. In this case, a horizontal blank-off must be installed. Install the horizon- tal blank-off at the top of the horizontal return opening. (See Fig.
- Page 7 NOTE: Some control box configurations may differ. Fig. 15 — Mount Controller Assembly in Unit Control 20. Unplug the 10-pin female ECON plug currently connected Fig. 17 — Connect 10-pin Plugs Together to the Central Terminal Board (CTB). See Fig. 16. 22.
- Page 8 4-PIN MALE PLUG 48TMHSRSE--A20 FROM CONTROLLER HARNESS CENTRAL TERMINAL BOARD Fig. 21 — Connect 48TMHSRSE--A20 Harness to Harness from Controller 27. Route the 4-wire 48TMHSRSE--A20 harness through the divider between the control box and the indoor blower sec- tion. See Fig. 22. Fig.
- Page 9 Connect (2) PINK AND green wires from VIOLET WIRES HH79ZZ007 sensor FROM to the brown and 48TMHSRSE--A20 HARNESS orange wires from INDOOR the 48TMHSRSE--A20 BLOWER HH79ZZ007 MAT sensor (Ring terminal) Fig. 24 — Connect Pink and Violet Wires in Indoor Indoor blower Blower Section Fig.
- Page 10 Fig. 25 — Typical EconoMi$er X Wiring Diagram for 1 or 2 Speed Units (Not for 48/50LC 07-12 Units)
-
Page 11: Instructions For 48/50Lc
Jade W7220 controller wiring harness shipped in the control box section of the HVAC unit. This harness, Carrier part number 48LCHSRADH-A00, is shown below in Fig. 28 and 30. Fig. 26 — Remove Complete Harness Factory- Attached to W7220 Controller Fig. - Page 12 Locate the Compressor Staging Control (CSC) board in the HVAC unit. When a field-installed economizer is used, the J5 jumper on the CSC must be removed. Remove the J5 jumper. See Fig. 30. The connectors on the left side of Fig. 28 on the 48LCHS- RADH-A00 harness attach to the unit’s CSC board.
- Page 13 NOTE: Harness attached to the W7220 controller from the Carrier factory is removed and not used with 48/50LC 07-12 units. Fig. 30 — Typical EconoMi$er X Wiring Diagram For 48/50LC 07-12 Units...
-
Page 14: Installing Optional Hh57Ac081 Single Outside Air Enthalpy Sensor
Jade controller. There are (5) enthalpy boundaries (set points Installing Optional HH57AC081 Single Outside ES1 through ES5), which are defined by dry bulb temperature, Air Enthalpy Sensor enthalpy, and dew point. ES3 is the default setting. Table 7 When using the HH57AC081 (Honeywell C7400S) enthalpy shows the High Limit Curves for each setting. -
Page 15: Installing Differential Return Air Sensor
Installing Differential Return Air Sensor Table 9 — California Title 24 Regional High Limit Dry The CRDIFRASN01A00 differential return air sensor kit must Bulb Temperature Settings be field mounted in the system’s return duct work. The kit in- TABLE 140.4-B AIR ECONOMIZER HIGH LIMIT SHUT OFF cludes a wiring harness that connects the EconoMi$er X har- CONTROL REQUIREMENTS ness in the return chamber of the unit to the provided... -
Page 16: Remote (Downstairs) Monitoring Of Controller's Fault Detection And Diagnostics
Remote (Downstairs) Monitoring of Controller’s FURNACE, AIR HANDLER, Fault Detection and Diagnostics OR RTU Many codes including IECC, Title 24, and ASHRAE 90.1 re- quire that the economizer’s faults be accessible by operating or AUX2-1 service personal, or annunciated locally on zone thermostat. To setup remote monitoring on the controller, under SYSTEM E-GND SETUP, AUX1-OUT must be set to SYS. -
Page 17: General Jade W7220 Controller And Sensor Information
Press the ▼ button to decrease the displayed parameter GENERAL JADE W7220 CONTROLLER AND value. SENSOR INFORMATION NOTE: When values are displayed, pressing and holding the ▲or W7220 Economizer ▼ button causes the display to automatically increment. The economizer controller used on electromechanical units is a Press the (Enter) button to accept the displayed value Honeywell W7220, which is located in the RTU base unit’s... - Page 18 setting. The default is 4.4 volts, but the range is 2 to SYSTEM SETUP 10 vdc. • INSTALL: Allows you to set the current date. Use the key- • MIN POS H and MIN POS L: If your unit is 2 speed, there pad buttons to scroll to the correct date.
- Page 19 Table 11 — Menu Structure PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT ECONOMIZING AVAILABLE ECON 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 1st stage cooling NO = Economizing not active OCCUPIED YES = OCC signal received from space thermostat or unitary controller...
- Page 20 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 0,1, or 2...
- Page 21 Table 11 — Menu Structure (cont) PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT 0°F to 50°F ENERGY RECOVERY VENTILATION UNIT OUTDOOR AIR ERV OAT SP 32°F (0°C) (–18°C to 10°C); TEMPERATURE SETPOINT increment by 1° Only displayed when AUX1 O = ERV Exhaust fan set point for single speed units.
- Page 22 Table 11 — Menu Structure (cont) PARAMETER PARAMETER MENU PARAMETER DEFAULT RANGE AND NOTES VALUE INCREMENT MIXED AIR TEMPERATURE CALIBRATION MAT T CAL 0.0°F (or °C) ±2.5°F (±1.4°C) Allows for the operator to adjust for an out of calibration mixed air temperature (MAT) sensor OUTSIDE AIR TEMPERATURE CALIBRATION OA T CAL...
-
Page 23: Checkout Tests
Legend and Notes for Table 11. SETUP AND CONFIGURATION W7220 Economizer Module Wiring LEGEND Use Fig. 38 and Tables 12 and 13 to locate the wiring terminals — Not applicable for the economizer module. — Liquid Crystal Display NOTE: The four terminal blocks are removable. Slide out each —... -
Page 24: Time-Out And Screen Saver
During Occupied mode operation, indoor fan operation will be Table 13 — Economizer Module — Right Hand accompanied by economizer dampers moving to Minimum Po- Terminal Blocks sition set point for ventilation. If indoor fan is off, dampers will close. During Unoccupied mode operation, dampers will re- LABEL TYPE DESCRIPTION... -
Page 25: Troubleshooting
If one or more alarms are present and there has been no keypad TROUBLESHOOTING activity for at least 5 minutes, the Alarms menu displays and For a list of common operating issues and concerns, see cycles through the active alarms. Table 15. - Page 28 © Carrier Corporation 2018 Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Catalog No. 04-53480208-01 Printed in U.S.A. Form IIK-CRECOMZR77-03 Pg 28 11-18A 11-18 Replaces: NEW...
Need help?
Do you have a question about the CRECOMZR077A00 and is the answer not in the manual?
Questions and answers