Table of Contents
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Part No. CRECOMZR067A01, CRECOMZR069A01, and CRECOMZR071A01
CONTENTS
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Accessories List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Instructions for 48/50LC 07-12 Units Only . . . . . . . . 9
Enthalpy Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Installing Differential Return Air Sensor . . . . . . . . . 14
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Demand Controlled Ventilation (DCV) . . . . . . . . . . . 14
Detection and Diagnostics . . . . . . . . . . . . . . . . . . 15
INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
W7220 Economizer . . . . . . . . . . . . . . . . . . . . . . . . . . 16
User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Using the Keypad with Menus . . . . . . . . . . . . . . . . . 16
Menu Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
PROGRAMMING 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 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:
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500252-01
Accessory Ultra Low Leak Vertical EconoMi$er
Installation Instructions
Page
Printed in U.S.A.
Form IIK-CRECOMZR67-05
(48/50LC 14 Not Included)
•
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 words DANGER, WARNING, 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.
WARNING
ELECTRIC SHOCK HAZARD
Failure to follow this warning could result in personal injury,
property damage, or death.
Before performing service or maintenance operations on 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 rating plate.
If any wiring changes are required, first be sure to remove
power from the economizer module before starting work. Pay
particular attention to verifying the power connection (24 vac).
CAUTION
PERSONAL INJURY 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 air conditioning equipment.
CAUTION
PERSONAL INJURY HAZARD
Failure to follow this caution can result in personal injury and
damage to the unit.
Cover the duct opening as a precaution so objects cannot fall
into the return duct opening. Be sure to remove the cover when
installation is complete.
Pg 1
Small Rooftop Units
3 to 12.5 Tons
12-21
Replaces: IIK-CRECOMZR67-04
X
®
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Summary of Contents for Bryant 582K
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Page 1: Table Of Contents
Small Rooftop Units 3 to 12.5 Tons (48/50LC 14 Not Included) Accessory Ultra Low Leak Vertical EconoMi$er ® Installation Instructions Part No. CRECOMZR067A01, CRECOMZR069A01, and CRECOMZR071A01 • Follow all safety codes CONTENTS • Wear safety glasses and work gloves Page •... -
Page 2: General
GENERAL Table 2 — Bryant Usage Chart The EconoMi$er X system utilizes the latest technology ® available for integrating the use of free cooling with mechanical BRYANT MODEL NUMBER ECONOMI$ER X PART NUMBER ® cooling for packaged rooftop units. The code compliant W7220... -
Page 3: Accessories List
Table 4 — Package Contents Table 6 — EconoMi$er ® X Field-Installed Accessories ECONOMIZER PART DESCRIPTION PART NUMBER CONTENTS NUMBER 208/230v 1PH Power Exhaust for Small CRPWREXH030A01 EconoMi$er Damper Assembly with Cabinet Actuator and HH79AH001 (HW: 460v 3PH Power Exhaust for Small C7250) Outside Air Sensor CRPWREXH021A01 Cabinet... -
Page 4: Installation
16. Locate the green wire with yellow stripe from the controller INSTALLATION harness and screw it to the control box (ground). (See Fig. NOTE: If installing economizer on 48/50LC 07-12 units, see “In- 12.) structions for 48/50LC 07-12 Units Only” on page 9. 17. - Page 5 Center Post HVAC Unit Filters Unit Control Box Panel(S) Wiring Harness Insert Screw in EconoMi$er X EconoMi$er X Flanges Indoor Fan Motor Fig. 3 — EconoMi$er ® X Assembly Installed on HVAC Access Panel Unit (CRECOMZR067A01 Shown) Fig. 6 — Typical Indoor Fan Motor Access Panel Locations Unit Filter Rack...
- Page 6 Central Terminal Board Fig. 11 — Connect Red and Brown Wires to Central Fig. 9 — Connect 10-pin Plugs Together Terminal Board 10-Pin Female Plug from Controller Central Terminal Board White Wire Fig. 10 — Connect 10-Pin Plug to Central Terminal Board Fig.
- Page 7 4-pin Male Plug Brown and Orange wires from 48TMHSRSE--A20 48TMHSRSE--A20 Harness From Controller Harness Indoor Blower Mixed Air Temperature Sensor Fig. 13 — Connect 48TMHSRSE--A20 Harness to Harness from Controller 50HE403589 2-Green Wire 48TMHSRSE--A20 Harness Harness Fig. 15 — Mount and Connect Mixed Air Sensor Control Indoor Blower...
- Page 8 Filter Door Hood Top And Side Assembly EconoMi$er X Hood Hood Divider Fig. 20 — Install EconoMi$er X Hood and Unit Filter SHIP WT. Access Door ECONOMIZER P/N (in.) (in.) (in.) (in.) (lb) CRECOMZR067A01 30.37 17.43 19.05 29.50 2500 CRECOMZR069A01 40.37 22.28 24.48 36.27 CRECOMZR071A01 52.92 27.03 33.41 46.92...
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Page 9: Instructions For 48/50Lc 07-12 Units Only
ECONOMIZER RETURN CHAMBER INDOOR BLOWER SECTION UNIT CONTROL BOX COMPARTMENT Dry Bulb 48TMHSRSE--A20 Outside Air Harness with Mixed Air Sensor Sensor 50HE403859 4-Pin Male 4-Pin Female Plug Field Mount on Harness Indoor Blower Plug HH79AH001 HONEYWELL C7250 12-Pin Female HH79AH001 Plug from Economizer HONEYWELL C7250 Economizer... - Page 10 Fig. 26 — Photo of 48LCHSRADH--A00 W7220 Controller Harness Shipped with 48/50LC 07-12 Units Fig. 24 — Remove Complete Harness Factory Attached to W7220 Controller Fig. 25 — 48TMHSRSE--A20 Not Used on 48/50LC 07-12 Units...
- Page 11 Fig. 27 — 48LCHSRADH--A00 W7220 Controller Harness Shipped With 48/50LC 07-12 Units...
- Page 12 NOTES: 1. Harness shown in bold is 48LCHSRADH--A00 harness, which is shipped in the control box of 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.
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Page 13: Installing Optional Hh57Ac081 Single Outside Air
ES1 through ES5), which are defined by dry bulb temperature, Installing Optional HH57AC081 Single Outside enthalpy, and dew point. ES3 is the default setting. Table 7 Air Enthalpy Sensor shows the High Limit Curves for each setting. When using the HH57AC081 (Honeywell C7400S) enthalpy sensor (see Fig. -
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 must be Bulb Temperature Settings field mounted in the system’s return duct work. The kit includes a wiring harness, that connects the EconoMi$er X harness in the REQUIRED HIGH LIMIT CLIMATE return chamber of the unit, to the provided HH57AC081 sensor. -
Page 15: Remote (Downstairs) Monitoring Of Controller's Fault Detection And Diagnostics
Remote (Downstairs) Monitoring of Controller’s Fault Detection and Diagnostics Many codes including IECC, Title 24, and ASHRAE 90.1 require AUX2-1 that the economizer’s faults be accessible by operating or service personal, or annunciated locally on zone thermostat. To setup E-GND remote monitoring on the controller, under SYSTEM SETUP, EXH1 AUX1-0... -
Page 16: General W7220 Controller And Sensor Information
NOTE: When values are displayed, pressing and holding the ▲ or GENERAL W7220 CONTROLLER AND SENSOR ▼ button causes the display to automatically increment. INFORMATION Press the (Enter) button to accept the displayed value and W7220 Economizer store it in nonvolatile RAM (Random Access Memory). The economizer controller used on electromechanical units is the “CHANGE STORED”... -
Page 17: System Setup
• FAN TYPE: Set for either single or 2 speed. The default is System Setup 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...
- 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 through 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 Alarms menus can be navigated at any time. See Table 11 for TROUBLESHOOTING the Alarms menu. For a list of common operating issues and concerns see Table 15. Clearing Alarms Power Loss (Outage or Brownout) Once the alarm has been identified and the cause has been re- All setpoints and advanced settings are restored after any power moved (e.g.