Product Certification and Safety
This product is certified to meet California Title 24, Part 6 Low Leak and FDD requirements.
Warning: Recognize this symbol ⚠️ as an indication of Important Safety Information!
- Read all instructions prior to installation.
- Disconnect electrical power to the unit before servicing.
- Failure to do so can cause electrical shock resulting in personal injury or death.
- Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this manual. For assistance or additional information consult a qualified installer or service agency.
DO NOT DESTROY. PLEASE READ CAREFULLY AND KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.
Before You Begin
Reference Unit Technical Service Literature for application requirements.
Inspect economizer for shipping damage and correct parts with list below:
- 1 - Economizer Assembly w/ Filter installed
- Upper Adaptor Panels (See Table 1 on Page 2)
- 1 - Side Adaptor Panel
- 1 - Outdoor Air Hood (Attached to Economizer)
- 1 - Hardware Package
- 1 - Mixed Air Sensor (MAS)
- 1 - Mixed Air Sensor Wiring Harness
- 2 - 8" Wire Tie
- 3 - #10 x 16 x ½" Self-Tapping Screws
- 13 - #10 x 16 x 1½" Type A Screws
Note: For rooftop or other installations that require the economizer to be lifted or hoisted, always lift economizer with the supplied packaging in place to prevent damage from lifting and rigging equipment.
Optional Accessory Kits:
- CO2 Sensor Kit, Wall Mount (920317)
- CO2 Sensor Kit, Duct Mount (920318)
- Differential Enthalpy Kit (922431)
- HP isolation relay kit (older heat pump models) (922598)
- Power Exhaust Kit (547842, 555578)
Diagram showing the economizer assembly with upper and side adaptor panels, and an outdoor air hood.
| Unit# | A | B | C | D | E | F | G | H | I | J | K | Height | Length | Width | Weight |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 562533 | 47.59 | 37.56 | 18.73 | 28.86 | 10.79 | 12.54 | 8.18 | 18.90 | 18.00 | 27.50 | 28.25 | 35 | 57 ½ | 20 ½ | 109 |
| 563209 | 51.03 | 41.06 | 18.75 | 32.29 | 14.29 | 17.34 | 18.00 | 31.08 | 31.83 | 35 | 57 ½ | 20 ½ | 112 |
Installation Steps
Diagram showing the components of the downflow economizer unit: Economizer Assembly, Upper Adaptor Panels (1, 2, 3), Side Adaptor Panel, Economizer Top Pan, Economizer Face Panel, and Fresh Air Hood.
| UNIT HEIGHT (WITH BASE RAILS)* | UPPER PANEL CLOSE-OFF | USED w/ UNIT# |
|---|---|---|
| 35" | PANEL 1 - 22" x 3" | 562533 |
| 39" | PANEL 1 - 22" x 3" | 563209 |
| 43" | PANEL 2 - 22" x 7" | |
| 47" | PANEL 3 - 22" x 11" |
Step 1: Shutdown unit and disconnect from electrical power.
Step 2: Remove the return access panel. (Save screws.)
Step 3: Using CAUTION not to puncture coil tubing, align holes and place the tab on the side panel on the return side of divider wall and secure with self-tapping screw provided.
Step 3a: (Optional) Install differential enthalpy control and DCV (CO2) sensor according to that kit's instructions. (See products technical service literature.)
Step 4: Install economizer in unit, attaching only left and right side mounting screws. Ensure economizer rails sit flush on return air opening lip. Use CAUTION not to tear insulation on unit side wall or floor. (Use screws that were removed in Step 2.) (See wiring diagram attached.)
Step 5: Screw side panel in place.
Step 6: Remove economizer top pan and face panels. Locate unit economizer plug (S1) in return air compartment (top right corner). Remove jumper wire and zip tie it to economizer wiring harness. Connect economizer plug (P1) to unit plug (S1). Inspect all wiring and linkage connections for security and proper operation. Secure all loose wires with a 6" wire tie. Ensure that wires are protected from all sharp edges, inadvertent grounding, and will not become entangled with filter or moveable vanes.
Step 6a (Optional) If installed, make sure differential enthalpy control and DCV (CO2) sensor wiring connections are made in accordance with that kit's instructions.
Step 7: Remove unit blower access panel and install mixed air sensor in appropriate location (as shown in Figure 4) with two #10 Type A screws provided and then make electrical connection. Replace blower access panel.
Diagram showing the placement of the Mixed Air Sensor (MAS) for Gas/Electric unit configurations.
Diagram showing the placement of the Mixed Air Sensor (MAS) for Electric/Electric or Heat Pump unit configurations.
Step 8: Return power to unit, Setup and configure economizer. (See Appendix A on page 5)
Step 9: Install appropriate upper close-off panel and replace face panel and top panel and secure with screws (See Table 1). Ensure all mounting screws, panels, and doors are installed.
Notes to Installer
- When this economizer is used in conjunction with heat pumps, unit WHITE wire from economizer plug pin #7 MUST be relocated from defrost control board "T1" to low voltage terminal board "A1".
- When this economizer is used with any 2-5 ton package unit (Gas/Electric, A/C, or Heat Pump) WITHOUT A COMMERCIAL THERMOSTAT, the GREEN wire from economizer plug pin #1 MUST be relocated from low voltage terminal board "G" to low voltage terminal board "R" to force dampers to remain in minimum position 100 percent of the time, while in heating mode, to meet the minimum fresh air requirements. When used in conjunction with a commercial thermostat, see Note 2 on wiring diagram.
- Some older 2-5T package heat pumps may not be equipped with a reversing valve isolation relay, required for use with economizers that have a Jade control system. Nordyne kit #922598 is required for these applications.
Maintenance
Return Air Filter Replacement
Recommended every 30 days. (Filter size: 16 x 16 x 1)
Step 1: Remove economizer face panel and side screws of top pan.
Step 2: Slide filters out (2) and replace with new filters.
Step 3: Replace face panel and secure all screws.
Diagrams illustrating the removal of the economizer face panel for filter replacement.
Fresh Air Filter Cleaning
Recommended every 3 months.
Step 1: Remove lower section of fresh air hood to access washable filters. (4 screws)
Step 2: Remove filters (2) and clean with water and a mild detergent.
Step 3: Taking note of "Air Flow Direction" marking on filter frame, reinstall the filters and fresh air filter access cover, securing all screws.
Diagrams illustrating the removal of the fresh air filter access cover for cleaning.
Appendix A: Controller and Operation Details
User Interface
The user interface consists of an LCD display and a 4-button keypad on the front of the Economizer module. The LCD is a 16 character by 2 line dot matrix display.
Power Up Cycle
All setpoints and advanced settings are restored after any power loss (a power loss is assumed if voltage falls below 18 Vac). Normal operation is restored when power returns above 18 Vac.
Initial Menu Display
On initial startup, Honeywell displays on the first line and Economizer W7220 on the second line. After a brief pause, the revision of the software appears on the first line (second line is blank). It then displays W7220 on the first line and STATUS on the second line.
Illustration of the Honeywell W7220 Economizer controller module's LCD display and 4-button keypad, labeling the buttons: MENU UP (EXIT), SELECT (ENTER), SCROLL (UP/DOWN).
Keypad
The four navigation buttons illustrated in Figure 7 are used to scroll through the menus and menu items, select menu items, and to change parameter and configuration settings.
Using the Keypad with Menus
- Press the ⬆ button to move to the previous menu.
- Press the ⬇ button to move to the next menu.
- Press the ➡️ button (Enter) to display the first item in the currently displayed menu.
- Press the ↖ button (Menu up) to exit a menu's item and return to the list of menus.
Using the Keypad with Settings and Parameters
- Navigate to the desired menu.
- Press the ➡️ button (Enter) to display the first item in the currently displayed menu.
- Use the ⬆ and ⬇ buttons to scroll to the desired parameter.
- Press the ➡️ button (Enter) to display the value of the currently displayed item.
- Press the ➡️ button to increase (change) the displayed parameter value.
- Press the ⬅ button to decrease (change) the displayed parameter value.
- Press the ➡️ button to accept the displayed value and store it in non-volatile RAM.
- When the value is accepted, CHANGE STORED is displayed on the LCD.
- Press the ➡️ button (Enter) to return to the current menu parameter.
- Press the ↖ button (MenuUp/Exit) to return to the previous menu.
Note: When values are displayed, pressing and holding the ⬆ or ⬇ button causes the display to automatically increment.
Menu Structure
The Menus in display order are:
- STATUS
- SETPOINTS
- SYSTEM SETUP
- ADVANCED SETUP
- CHECKOUT
- ALARMS
IMPORTANT: Your menu parameters may be different depending on your configuration. For example, if you do not have a DCV (CO2) sensor, then none of the DCV parameters appear. If you have a CO2 sensor, DCV MIN and DCV MAX will appear.
Setup and Configuration
Before being placed into service, the JADE™ Economizer module must be setup and configured for the installed system. Use the System Setup menu, the Advanced Setup menu (if necessary), and the Setpoints menu to accomplish this.
Time-out and Screen Saver
When no buttons have been pressed for 10 minutes, the LCD displays a screen saver, which cycles through the Status items. Each Status item displays for 5 seconds.
Status Menu
The Status Menu displays the current values of various parameters and sensors.
| Parameter | Parameter Default Value | Parameter Range and Increment | Notes |
|---|---|---|---|
| ECON AVAIL | NO | YES/NO | YES = economizing available; the system can use Outdoor Air for free cooling when required. |
| ECONOMIZING | NO | YES/NO | YES = Outdoor Air being used for 1st stage cooling. |
| OCCUPIED | NO | YES/NO | YES = OCC signal received from space thermostat or unitary controller. YES = 24 Vac on terminal OCC. No = 0 Vac on terminal OCC. |
| HEAT PUMP | COOL | COOL/HEAT | Displays COOL or HEAT when SYSTEM is set to heat pump (non-conventional). |
| COOL Y1-IN | OFF | ON/OFF | Y1-I signal from space thermostat input for cooling stage 1 or heat pump heating stage 1. ON = 24 Vac on terminal Y1-I. OFF = 0 Vac on terminal Y1-I. |
| COOL Y1-OUT | OFF | ON/OFF | Cool Stage 1 Relay Output to stage 1 mechanical cooling (Y1-OUT terminal). |
| COOL Y2-IN | OFF | ON/OFF | Y2-I signal from space thermostat input for second stage cooling or heat pump heating stage 2. ON = 24 Vac on terminal Y2-I. OFF = 0 Vac on terminal Y2-I. |
| COOL Y2-OUT | OFF | ON/OFF | Cool Stage 2 Relay Output to mechanical cooling (Y2-OUT terminal). |
| MA TEMP | -.- °F | -40 to 150°F | Displays value of measured mixed air from MAT sensor. Displays -.- if not connected, short, or out-of-range. |
| DA TEMP | -.- °F | -40 to 150°F | Displays when Discharge Air Sylk Bus sensor is connected and displays measured discharge air temperature. Displays -.-°F if sensor sends invalid value, if not connected, short or out-of-range. |
| OA TEMP | -.- °F | -40 to 140°F | Displays measured value of outdoor air temperature. Displays -°F if sensor sends invalid value, if not connected, short or out-of-range. |
| OA HUM | -.- % | 0 to 100% | Displays measured value of outdoor humidity from OA Sylkbus sensor. Displays -% if not connected, short, or out-of-range. |
| RA TEMP | -.- °F | 0 to 140°F | If field installed Dual Enthalpy sensor is connected, displays measured value of return air temperature. Displays -°F if sensor sends invalid value, if not connected, short or out-of-range. |
| RA HUM | -.- % | 0 to 100% | If field installed Dual Enthalpy sensor is connected, displays measured value of return air humidity. Displays -% if sensor sends invalid value, if not connected, short or out-of-range. |
| IN CO2 | -.- ppm | "0 to 2000 (3500) ppm" | If field installed CO2 sensor is connected, displays value of measured CO2. Invalid if not connected, short or out-of-range. May be adjusted in Advanced menu by Zero offset and Span. |
| DCV STATUS | n/a | n/a | If field installed CO2 sensor is connected, displays ON if above setpoint and OFF if below setpoint. |
| DAMPER OUT | -.- % | 0 to 100% | Displays output position to the damper actuator. When used with Honeywell communicating actuator the damper out is in XX.X%. |
| ACT POS. | n/a | 0 to 100% | Displays actual position of actuator. |
| ACT COUNT | n/a | 1 to 65,535 | Displays number of times actuator has cycled. 1 Cycle equals 180° of movement in any direction. |
| ACTUATOR | n/a | OK/Alarm | Displays Error on ALARM MENU if voltage or torque is below actuator range. |
| EXH1 OUT | OFF | ON/OFF | Output of EXH1 terminal. Displays ON when damper position reaches programmed percentage setpoint. ON = 24 Vac Output; OFF = No Output. |
| EXH2 OUT | OFF | ON/OFF | Output of AUX1 O terminal. Displays ON when damper position reaches programmed percentage setpoint. ON = 24 Vac Output, OFF = No Output; displays only if AUX1 O = EXH2. |
| ERV | OFF | ON/OFF | Output of AUX1 O terminal, ON = 24 Vac Output, OFF = No Output; displays only if AUX1 O = ERV. |
| MECH COOL ON | 0 | 0, 1, or 2 | Displays number of mechanical cooling stages that are active. |
| FAN SPEED | n/a | LOW/HIGH | Displays speed of fan on a 2-speed fan unit. |
| W (HEAT IN) | n/a | ON/OFF | Displays status of heat on a 2-speed fan unit. |
Setpoints Menu
This menu allows adjustment of various operating parameters.
| Parameter | Parameter Default Value | Parameter Range and Increment | Notes |
|---|---|---|---|
| MAT SET | 53°F | 38 to 70°F; increment by 1 | The economizer will modulate the OA damper to maintain the mixed air temperature at the setpoint. |
| LOW T LOCK | 32°F | -45 to 80°F; increment by 1 | Setpoint determines outdoor temperature when the mechanical cooling cannot be turned on. Commonly referred to as the Compressor lockout. At or below the setpoint the Y1-O and Y2-O will not be energized on the controller. |
| DRYBLB SET | 63°F | 48 to 80°F; increment by 1 | Setpoint determines where the economizer will assume outdoor air temperature is good for free cooling; e.g.; at 63 °F setpoint unit will economizer at 62 °F and below and not economize at 64 °F and above. There is a 2 °F deadband. |
| ENTH CURVE | ES3 | ES1, ES2, ES3, ES4, or ES5 | Does not display if a field installed Dual Enthalpy kit is connected. Enthalpy boundary "curves" for economizing using single enthalpy comparison between outdoor air enthalpy and setpoint. |
| DCV SET | 1100 ppm | 500 to 2000 ppm; increment by 100 | Displays ONLY if field installed CO2 sensor is connected. Setpoint for Demand Control Ventilation of space. Above the setpoint, the OA dampers will modulate open to bring in additional OA to maintain a space ppm level below the setpoint. |
| MIN POS | 2.8 V | 2 to 10 Vdc | Displays ONLY if a CO2 sensor is NOT connected. With 2-speed fan units MIN POS L (low speed fan) and MIN POS H (high speed fan) settings are required. Default for MIN POS L is 3.2V and MIN POS H is 2.8V. |
| VENTMAX | 2.8 V | 2 to 10 Vdc | Displays only if a field installed CO2 sensor is connected. Used for Vbz (ventilation max cfm) setpoint. VENTMAX is the same setting as MIN POS would be if you did not have the CO2 sensor. If OA, MA, RA and CO2 sensors are connected and DCV CAL ENABLE is set to AUTO mode, the OA dampers are controlled by CFM and displays from 100 to 9990 cfm. With 2-speed fan units VENTMAX L (low speed fan) and VENTMAX H (high speed fan) settings are required. Default for VENTMAX L is 3.2V and VENTMAX H is 2.8V. |
| VENTMIN | 2.25 V | 2 to 10 Vdc | Displays only if field installed CO2 sensor is connected. Used for Va (ventilation min cfm) setpoint. This is the ventilation requirement for less than maximum occupancy of the space. If OA, MA, RA and CO2 sensors are connected and DCV CAL ENABLE is set to AUTO mode, the OA dampers are controlled by CFM and displays from 100 to 9990 cfm. With 2-speed fan units VENTMIN L (low speed fan) and VENTMIN H (high speed fan) settings are required. Default for VENTMIN L is 2.5V and VENTMIN H is 2.25V. |
| ERV OAT SP | 32°F | 0 to 50°F; increment by 1 | Only when AUX1 O = ERV. |
| EXH1 SET | 50% | 0 to 100%; increment by 1 | Setpoint for OA damper position when exhaust fan 1 is powered by the economizer. With 2-speed fan units Exh1 L (low speed fan) and Exh1 H (high speed fan) settings are required. Default for Exh1 L is 65% and Exh1 H is 50%. |
| EXH2 SET | 75% | 0 to 100%; increment by 1 | Setpoint for OA damper position when exhaust fan 2 is powered by the economizer. Only used when AUX1 O is set to EHX2. With 2-speed fan units Exh2 L (low speed fan) and Exh2 H (high speed fan) settings are required. Default for Exh2 L is 80% and Exh2 H is 75%. |
Note: ERV Operation: When in Cooling mode AND the conditions are NOT OK for economizing - the ERV terminal will be energized. In the Heating mode the ERV terminal will be energized when the OA is below the ERV OAT setpoint in the setpoint menu.
System Setup Menu
This menu configures basic system parameters.
| Parameter | Parameter Default Value | Parameter Range and Increment | Notes |
|---|---|---|---|
| INSTALL | 01/01/2011 | DD, MM, then YY. | Display order = MM/DD/YY. Setting order = DD, MM, then YY. |
| UNITS DEG | °F | °F or °C | Sets economizer controller in degrees Fahrenheit or Celsius. |
| EQUIPMENT | CONV | CONV HP | CONV = conventional. HP O/B = Enables Heat Pump mode. Use AUX2 I for Heat Pump input from thermostat or controller. |
| AUX2 I | N/A | In CONV mode: SD = Enables configuration of shutdown (default); W = Informs controller that system is in heating mode. NOTE: If using 2-speed fan mode, you must program CONV mode for W. Shutdown is not available in the two-speed fan mode. In HP O/B mode: HP(O) = energize heat pump on Cool (default); HP(B) = energize heat pump on Heat. | |
| FAN TYPE | 1 speed | 1 speed/ 2 speed | Sets economizer controller for operation of 1 speed or 2 speed supply fan. The controller does not control the fan but positions the OA and RA dampers to the heating or cooling mode. NOTE: 2-speed fan option also needs Heat (W1) programmed in AUX 2 In. |
| FAN CFM | 5000cfm | 100 to 15000 cfm; increment by 100 | This is the capacity of the RTU. The value is found on the label from the RTU manufacturer. The cfm of the fan is only used with DCV CAL ENABLE AUO. |
| AUX1 OUT | NONE | NONE ERV EXH2 SYS |
|
| OCC | INPUT | INPUT or ALWAYS | When using a setback thermostat with occupancy out (24 Vac), the 24 Vac is input "INPUT" to the OCC terminal. If no occupancy output from the thermostat then change program to "ALWAYS" OR add a jumper from terminal R to OCC terminal. |
| FACTORY DEFAULT | NO | NO or YES | Resets all set points to factory defaults when set to YES. LCD will briefly flash YES and change to NO but all parameters will change to factory default values. |
Advance Setup Menu
This menu provides advanced configuration options.
| Parameter | Parameter Default Value | Parameter Range and Increment | Notes |
|---|---|---|---|
| MA LO SET | 45°F | 35 to 55°F; increment by 1° | Temp to activate Freeze Protection (close damper or modulate to MIN POS if temp falls below set value). |
| FREEZE POS | CLO | CLO MIN | Damper position when freeze protection is active (closed or MIN POS). |
| CO2 ZERO | 0 ppm | 0 to 500 ppm; increment by 10 | Displays only if field installed CO2 sensor is connected. CO2 ppm level to match CO2 sensor start level. |
| CO2 SPAN | 2000 ppm | 1000 to 3000 ppm; increment by 50 | Displays only if field installed CO2 sensor is connected. CO2 ppm span to match CO2 sensor; e.g.; 500-1500 sensor output would be 500 CO2 zero and 1000 CO2 span. See note on page 6 for C7632 CO2 sensor. |
| STG3 DLY | 2.0h | 0 min, 5 min, 15 min, then 15 min intervals. Up to 4h or OFF | Delay after stage 2 for cool has been active. Turns on 2nd stage of mechanical cooling when economizer is 1st stage call and mechanical cooling is 2nd stage call. Allows three stages of cooling, 1 economizer and 2 mechanical. OFF = no Stage 3 cooling. |
| SD DMPR POS | CLO | CLO OPN | Indicates shutdown signal from space thermostat. When controller receives 24 Vac input on the SD terminal in conventional mode, the OA damper will open if programmed for OPN and OA damper will close if programmed for CLO. All other controls, e.g., Y1-O, Y2-O, EXH1, etc. will shut off. |
| DCVCAL ENA | MAN | MAN (manual) AUTO | Turns on the DCV automatic control of the dampers. Resets ventilation based on the RA, OA and MA sensor conditions. Requires all sensors (RA, OA, MA and CO2). This operation is not operable with a 2-speed fan unit. |
| MAT T CAL | 0.0 F° | +/-2.5F° | Allows for the operator to adjust for an out of calibration mixed air temperature sensor. |
| OAS T CAL | 0.0F° | +/-2.5F° | Allows for the operator to adjust for an out of calibration outdoor air temperature sensor. |
| OAS H CAL | 0% RH | +/-10% RH | Allows for the operator to adjust for an out of calibration outdoor air humidity sensor. |
| RA T CAL | 0.0F° | +/-2.5F° | If field installed Dual Enthalpy sensor is connected, allows for the operator to adjust for an out of calibration temperature sensor. |
| RA H CAL | 0% RH | +/-10% RH | If field installed Dual Enthalpy sensor is connected, allows for the operator to adjust for an out of calibration humidity sensor. |
| DA T CAL | 0.0 F° | +/-2.5F° | Allows for the operator to adjust for an out of calibration Discharge Air Sylk Bus temperature sensor. |
| 2SP FAN DELAY | 5 Minutes | 0 to 20 minutes in 1 minute increments. | When in economizing mode this is the delay for the high speed fan to try to satisfy the call for second stage cooling before the first stage mechanical cooling is enabled. |
Checkout Menu
This menu is used to test damper operation and configured outputs.
| Parameter | Parameter Default Value | Parameter Range and Increment | Notes |
|---|---|---|---|
| DAMPER VMIN-HS | n/a | n/a | Positions damper to VMIN position. |
| DAMPER VMAX-HS | n/a | n/a | Positions damper to VMAX position. |
| DAMPER VMAX-LS | n/a | n/a | With 2-speed fan units the damper will position to VMAX low speed fan. |
| DAMPER OPEN | n/a | n/a | Positions damper to the full open position. Exhaust fan contacts enable during the DAMPER OPEN test. Pause in this mode to allow for exhaust contacts to energize due to system delay. |
| DAMPER CLOSE | n/a | n/a | Positions outside air damper to the fully closed position. |
| CONNECT Y1-O | n/a | n/a | Closes the Y1-O relay (Y1-O). |
| CONNECT Y2-O | n/a | n/a | Closes the Y2-O relay (Y2-O). |
| CONNECT AUX1-O | n/a | n/a | Energizes the AUX1-O output. If AUX1-O setting is: NONE (no action), ERV (24 Vac out for ERV operation), SYS (24 Vac out for system alarm). |
| CONNECT EXH1 | n/a | n/a | Closes the power exhaust fan 1 relay (EXH1). |
Checkout Procedure:
- Inspect all wiring connections at the Economizer module's terminals and verify compliance with the installation wiring diagrams.
- For checkout, review the Status of each configured parameter and perform the Checkout tests.
- Scroll to the desired test in the Checkout menu using the ⬆ and ⬇ buttons.
- Press the ➡️ button to select the item.
- "RUN?" appears on the display.
- Press the ➡️ button to start the test.
- The unit pauses and then displays TEST RUNNING.
- Press the ↖ button (Menu up) to end the test. Test stops automatically after 10 minutes without a command or mode change.
WARNING: Electrical Shock Hazard. Disconnect power supply before beginning wiring or making wiring connections.
CAUTION: Equipment damage may result. Allow enough time for compressor startup and shutdown between checkout tests to avoid short-cycling.
Alarm Menu
The Economizer module provides alarm messages that display on the 2-line LCD.
| Parameter | Parameter Default Value | Parameter Range and Increment | Notes |
|---|---|---|---|
| MAT SENS ERR | n/a | n/a | Alarms display only when they are active. The menu title "ALARMS (_)" includes the number of active alarms in parenthesis (). |
| CO2 SENS ERR | n/a | n/a | |
| OA T SENS ERR | n/a | n/a | |
| DA ENTHL ERR | n/a | n/a | |
| SYS ALARM | n/a | n/a | When AUX1 O is set to SYS and there is any alarm (e.g., failed sensors, etc.), the AUX1 O terminal has 24 Vac out. |
| ACT UNDER V | n/a | n/a | Voltage received by Actuator is above expected range. |
| ACT OVER V | n/a | n/a | Voltage received by Actuator is below expected range. |
| ACT STALLED | n/a | n/a | Actuator stopped before achieving commanded position. |
Note: Upon power up, the module waits 60 minutes before checking for alarms, except for the MA sensor which will alarm immediately.
Clearing Alarms:
- Navigate to the desired alarm.
- Press the ➡️ button.
- "ERASE?" displays.
- Press the ➡️ button.
- "ALARM ERASED" displays.
- Press the ↖ button (MenuUp/Exit) to complete the action and return to the previous menu.
Sequence of Operation
Detailed tables outlining the sequence of operation based on various conditions (Dry Bulb/Enthalpy, DCV/No DCV, 1-Speed/2-Speed Fan).
Dry Bulb Operation No DCV (CO2 sensor) - 1 Speed Fan
| DCV | OA Good to economize? | Y1-I | Y2-I | FAN SPD | Y1-O | Y2-O | Occupied | Unoccupied |
|---|---|---|---|---|---|---|---|---|
| Off | No | Off | Off | High | 0-v/Off | 0-v/Off | MIN POS | Closed |
| None | No | On | Off | High | 24-v/On | 0-v/Off | MIN POS | Closed |
| On | On | High | 24-v/On | 24-v/On | MIN POS | Closed | ||
| Off | Off | High | 0-v/Off | 0-v/Off | MIN POS | Closed | ||
| None | Yes | On | Off | High | 0-v/Off | 0-v/Off | MIN POS to Full-Open | Closed to Full-Open |
| On | On | High | 24-v/On | 0-v/Off | MIN POS to Full-Open | Closed to Full-Open |
Note: With stage 3 delay (STG3 DLY) in Advanced setup menu can turn on 2nd stage of mechanical cooling Y2-O after the delay if the call for Y1-I and Y2-I have not been satisfied.
Dry Bulb Operation With DCV (CO2 sensor) - 1 Speed Fan
| DCV | OA Good to economize? | Y1-I | Y2-I | FAN SPD | Y1-O | Y2-O | Occupied | Unoccupied |
|---|---|---|---|---|---|---|---|---|
| Off | No | Off | Off | High | 0-v/Off | 0-v/Off | VENTMIN | Closed |
| On | Off | High | 24-v/On | 0-v/Off | VENTMIN | Closed | ||
| Below CO2 set | On | On | High | 24-v/On | 24-v/On | VENTMIN | Closed | |
| Off | Off | High | 0-v/Off | 0-v/Off | VENTMIN | Closed | ||
| Yes | On | Off | High | 0-v/Off | 0-v/Off | VENTMIN to Full-Open | Closed to Full-Open | |
| On | On | High | 24-v/On | 0-v/Off | VENTMIN to Full-Open | Closed to Full-Open | ||
| Off | Off | High | 0-v/Off | 0-v/Off | VENTMIN to VENTMAX | Closed | ||
| No | On | Off | High | 24-v/On | 0-v/Off | VENTMIN to VENTMAX | Closed | |
| Above CO2 set | On | On | High | 24-v/On | 24-v/On | VENTMIN to VENTMAX | Closed | |
| Off | Off | High | 0-v/Off | 0-v/Off | VENTMIN to VENTMAX | Closed | ||
| Yes | On | Off | High | 0-v/Off | 0-v/Off | VENTMIN to Full-Open | Closed to Full-Open | |
| On | On | High | 24-v/On | 0-v/Off | VENTMIN to Full-Open | Closed to Full-Open |
Note: With stage 3 delay (STG3 DLY) in Advanced setup menu can turn on 2nd stage of mechanical cooling Y2-O after the delay if the call for Y1-I and Y2-I have not been satisfied.
Enthalpy Operation No DCV (CO2 sensor) - 1 Speed Fan
| DCV | OA Good to economize? | Y1-I | Y2-I | FAN SPD | Y1-O | Y2-O | Occupied | Unoccupied |
|---|---|---|---|---|---|---|---|---|
| Off | No | Off | Off | High | 0-v/Off | 0-v/Off | MIN POS | Closed |
| None | No | On | Off | High | 24-v/On | 0-v/Off | MIN POS | Closed |
| On | On | High | 24-v/On | 24-v/On | MIN POS | Closed | ||
| Off | Off | High | 0-v/Off | 0-v/Off | MIN POS | Closed | ||
| None | Yes | On | Off | High | 0-v/Off | 0-v/Off | MIN POS to Full-Open | Closed to Full-Open |
| On | On | High | 24-v/On | 0-v/Off | MIN POS to Full-Open | Closed to Full-Open |
Note: With stage 3 delay (STG3 DLY) in Advanced setup menu can turn on 2nd stage of mechanical cooling Y2-O after the delay if the call for Y1-I and Y2-I have not been satisfied.
Enthalpy Operation With DCV (CO2 sensor) - 1 Speed Fan
| DCV | OA Good to economize? | Y1-I | Y2-I | FAN SPD | Y1-O | Y2-O | Occupied | Unoccupied |
|---|---|---|---|---|---|---|---|---|
| Off | No | Off | Off | High | 0-v/Off | 0-v/Off | VENTMIN | Closed |
| On | Off | High | 24-v/On | 0-v/Off | VENTMIN | Closed | ||
| Below set | On | On | High | 24-v/On | 24-v/On | VENTMIN | Closed | |
| Off | Off | High | 0-v/Off | 0-v/Off | VENTMIN | Closed | ||
| Yes | On | Off | High | 0-v/Off | 0-v/Off | VENTMIN to Full-Open | Closed to Full-Open | |
| On | On | High | 24-v/On | 0-v/Off | VENTMIN to Full-Open | Closed to Full-Open | ||
| Off | Off | High | 0-v/Off | 0-v/Off | VENTMIN to VENTMAX | Closed | ||
| No | On | Off | High | 24-v/On | 0-v/Off | VENTMIN L to VENTMAX | Closed | |
| Above set | On | On | High | 24-v/On | 24-v/On | VENTMIN H to VENTMAX | Closed | |
| Off | Off | High | 0-v/Off | 0-v/Off | VENTMIN L to VENTMAX | Closed | ||
| Yes | On | Off | High | 0-v/Off | 0-v/Off | VENTMIN to Full-Open | Closed to Full-Open | |
| On | On | High | DELAY(b) 24-v/On | 0-v/Off | VENTMIN to Full-Open | Closed to Full-Open |
Note: With stage 3 delay (STG3 DLY) in Advanced setup menu can turn on 2nd stage of mechanical cooling Y2-O after the delay if the call for Y1-I and Y2-I have not been satisfied.
Dry Bulb Operation No DCV (CO2 sensor) - 2 Speed Fan
| DCV | OA Good to economize? | Y1-I | Y2-I | FAN SPD | Y1-O | Y2-O | Occupied | Unoccupied |
|---|---|---|---|---|---|---|---|---|
| Off | No | Off | Off | Low | 0-v/Off | 0-v/Off | MIN POS L | Closed |
| None | No | On | Off | Low | 24-v/On | 0-v/Off | MIN POS L | Closed |
| On | On | High | 24-v/On | 24-v/On | MIN POS H | Closed | ||
| Off | Off | Low | 0-v/Off | 0-v/Off | MIN POS L | Closed | ||
| None | Yes | On | Off | Low | 0-v/Off | 0-v/Off | MIN POS L to Full-Open | Closed to Full-Open |
| On | On | High | DELAY(b) 24-v/On | 0-v/Off | MIN POS H to Full-Open | Closed to Full-Open |
Note: With stage 3 delay (STG3 DLY) in Advanced setup menu can turn on 2nd stage of mechanical cooling Y2-O after the delay if the call for Y1-I and Y2-I have not been satisfied. With 2SP FAN DELAY (Advanced Setup Menu) when in the economizing mode there is a delay for the high speed fan to try to satisfy the call for second stage cooling by turning on the fan to high and opening the OA damper 100% before the first stage mechanical cooling is enabled.
Dry Bulb Operation With DCV (CO2 sensor) - 2 Speed Fan
| DCV | OA Good to economize? | Y1-I | Y2-I | FAN SPD | Y1-O | Y2-O | Occupied | Unoccupied |
|---|---|---|---|---|---|---|---|---|
| Off | No | Off | Off | Low | 0-v/Off | 0-v/Off | VENTMIN L | Closed |
| On | Off | Low | 24-v/On | 0-v/Off | VENTMIN L | Closed | ||
| Below set | On | On | High | 24-v/On | 24-v/On | VENTMIN H | Closed | |
| Off | Off | Low | 0-v/Off | 0-v/Off | VENTMIN L | Closed | ||
| Yes | On | Off | Low | 0-v/Off | 0-v/Off | VENTMIN L to Full-Open | Closed to Full-Open | |
| On | On | High | 24-v/On | 0-v/Off | VENTMIN H to Full-Open | Closed to Full-Open | ||
| Off | Off | Low | 0-v/Off | 0-v/Off | VENTMIN L to VENTMAX | Closed | ||
| No | On | Off | Low | 24-v/On | 0-v/Off | VENTMIN L to VENTMAX | Closed | |
| Above set | On | On | High | 24-v/On | 24-v/On | VENTMIN H to VENTMAX | Closed | |
| Off | Off | Low | 0-v/Off | 0-v/Off | VENTMIN L to VENTMAX | Closed | ||
| Yes | On | Off | Low | 0-v/Off | 0-v/Off | VENTMIN L to Full-Open | Closed to Full-Open | |
| On | On | High | DELAY(b) 24-v/On | 0-v/Off | VENTMIN H to Full-Open | Closed to Full-Open |
Note: With stage 3 delay (STG3 DLY) in Advanced setup menu can turn on 2nd stage of mechanical cooling Y2-O after the delay if the call for Y1-I and Y2-I have not been satisfied. With 2SP FAN DELAY (Advanced Setup Menu) when in the economizing mode there is a delay for the high speed fan to try to satisfy the call for second stage cooling by turning on the fan to high and opening the OA damper 100% before the first stage mechanical cooling is enabled.
Enthalpy Operation No DCV (CO2 sensor) - 2 Speed Fan
| DCV | OA Good to economize? | Y1-I | Y2-I | FAN SPD | Y1-O | Y2-O | Occupied | Unoccupied |
|---|---|---|---|---|---|---|---|---|
| Off | No | Off | Off | Low | 0-v/Off | 0-v/Off | MIN POS L | Closed |
| NO CO2 SENSOR | No | On | Off | Low | 24-v/On | 0-v/Off | MIN POS L | Closed |
| On | On | High | 24-v/On | 24-v/On | MIN POS H | Closed | ||
| Off | Off | Low | 0-v/Off | 0-v/Off | MIN POS L | Closed | ||
| Yes | On | Off | Low | 0-v/Off | 0-v/Off | MIN POS L to Full-Open | Closed to Full-Open | |
| On | On | High | DELAY(b) 24-v/On | 0-v/Off | MIN POS H to Full-Open | Closed to Full-Open |
Note: With stage 3 delay (STG3 DLY) in Advanced setup menu can turn on 2nd stage of mechanical cooling Y2-O after the delay if the call for Y1-I and Y2-I have not been satisfied. With 2SP FAN DELAY (Advanced Setup Menu) when in the economizing mode there is a delay for the high speed fan to try to satisfy the call for second stage cooling by turning on the fan to high and opening the OA damper 100% before the first stage mechanical cooling is enabled.
Dry Bulb Operation With DCV (CO2 sensor) - 2 Speed Fan
| DCV | OA Good to economize? | Y1-I | Y2-I | FAN SPD | Y1-O | Y2-O | Occupied | Unoccupied |
|---|---|---|---|---|---|---|---|---|
| Off | No | Off | Off | Low | 0-v/Off | 0-v/Off | VENTMIN L | Closed |
| On | Off | Low | 24-v/On | 0-v/Off | VENTMIN L | Closed | ||
| Below set | On | On | High | 24-v/On | 24-v/On | VENTMIN H | Closed | |
| Off | Off | Low | 0-v/Off | 0-v/Off | VENTMIN L | Closed | ||
| Yes | On | Off | Low | 0-v/Off | 0-v/Off | VENTMIN L to Full-Open | Closed to Full-Open | |
| On | On | High | 24-v/On | 0-v/Off | VENTMIN H to Full-Open | Closed to Full-Open | ||
| Off | Off | Low | 0-v/Off | 0-v/Off | VENTMIN L to VENTMAX | Closed | ||
| No | On | Off | Low | 24-v/On | 0-v/Off | VENTMIN L to VENTMAX | Closed | |
| Above set | On | On | High | 24-v/On | 24-v/On | VENTMIN H to VENTMAX | Closed | |
| Off | Off | Low | 0-v/Off | 0-v/Off | VENTMIN L to VENTMAX | Closed | ||
| Yes | On | Off | Low | 0-v/Off | 0-v/Off | VENTMIN L to Full-Open | Closed to Full-Open | |
| On | On | High | DELAY(b) 24-v/On | 0-v/Off | VENTMIN H to Full-Open | Closed to Full-Open |
Note: With stage 3 delay (STG3 DLY) in Advanced setup menu can turn on 2nd stage of mechanical cooling Y2-O after the delay if the call for Y1-I and Y2-I have not been satisfied. With 2SP FAN DELAY (Advanced Setup Menu) when in the economizing mode there is a delay for the high speed fan to try to satisfy the call for second stage cooling by turning on the fan to high and opening the OA damper 100% before the first stage mechanical cooling is enabled.
Enthalpy Operation With DCV (CO2 sensor) - 2 Speed Fan
| DCV | OA Good to economize? | Y1-I | Y2-I | FAN SPD | Y1-O | Y2-O | Occupied | Unoccupied |
|---|---|---|---|---|---|---|---|---|
| Off | No | Off | Off | Low | 0-v/Off | 0-v/Off | VENTMIN L | Closed |
| On | Off | Low | 24-v/On | 0-v/Off | VENTMIN L | Closed | ||
| Below set | On | On | High | 24-v/On | 24-v/On | VENTMIN H | Closed | |
| Off | Off | Low | 0-v/Off | 0-v/Off | VENTMIN L | Closed | ||
| Yes | On | Off | Low | 0-v/Off | 0-v/Off | VENTMIN L to Full-Open | Closed to Full-Open | |
| On | On | High | 24-v/On | 0-v/Off | VENTMIN H to Full-Open | Closed to Full-Open | ||
| Off | Off | Low | 0-v/Off | 0-v/Off | VENTMIN L to VENTMAX | Closed | ||
| No | On | Off | Low | 24-v/On | 0-v/Off | VENTMIN L to VENTMAX | Closed | |
| Above set | On | On | High | 24-v/On | 24-v/On | VENTMIN H to VENTMAX | Closed | |
| Off | Off | Low | 0-v/Off | 0-v/Off | VENTMIN L to VENTMAX | Closed | ||
| Yes | On | Off | Low | 0-v/Off | 0-v/Off | VENTMIN L to Full-Open | Closed to Full-Open | |
| On | On | High | DELAY(b) 24-v/On | 0-v/Off | VENTMIN H to Full-Open | Closed to Full-Open |
Note: With stage 3 delay (STG3 DLY) in Advanced setup menu can turn on 2nd stage of mechanical cooling Y2-O after the delay if the call for Y1-I and Y2-I have not been satisfied. With 2SP FAN DELAY (Advanced Setup Menu) when in the economizing mode there is a delay for the high speed fan to try to satisfy the call for second stage cooling by turning on the fan to high and opening the OA damper 100% before the first stage mechanical cooling is enabled.
Enthalpy Curves and Settings
This section details enthalpy settings and provides curves for economizing.
Single Enthalpy and Dual Enthalpy High Limit Curves
Diagram showing Enthalpy vs. Temperature and Humidity for various setpoints (ES1-ES5, HL).
| Enthalpy Curve | Temp. Dry-Bulb (°F) | Temp. Dewpoint (°F) | Enthalpy (btu/lb/da) | Point P1 | Point P2 | ||
|---|---|---|---|---|---|---|---|
| Temp. °F | Humidity %RH | Temp. °F | Humidity %RH | ||||
| ES1 | 80.0 | 60.0 | 28.0 | 80.0 | 36.8 | 66.3 | 80.1 |
| ES2 | 75.0 | 57.0 | 26.0 | 75.0 | 39.6 | 63.3 | 80.0 |
| ES3 | 70.0 | 54.0 | 24.0 | 70.0 | 42.3 | 59.7 | 81.4 |
| ES4 | 65.0 | 51.0 | 22.0 | 65.0 | 44.8 | 55.7 | 84.2 |
| ES5 | 60.0 | 48.0 | 20.0 | 60.0 | 46.9 | 51.3 | 88.5 |
| HL | 86.0 | 66.0 | 32.4 | 86.0 | 38.9 | 72.4 | 80.3 |
Enthalpy Settings
When the OA temperature, enthalpy and dew point are below the respective setpoints, the Outdoor Air can be used for economizing. The W7220 uses 5 boundaries (setpoints ES1 through ES5) defined by dry bulb temperature, enthalpy, and dew point. Refer to the table above for ENTH CURVE setpoint values.
To use enthalpy, the W7220 must have a C7400S Sylkbus sensor for OA. The W7220 calculates the enthalpy and dew point using the OA temperature and humidity input from the OA sensor. When the OA temperature, OA humidity, and OA dew point are all below the selected boundary, economizing is available.
When conditions are above the selected boundary, economizing is not available.
The high limit boundary is ES1 when no mechanical cooling stages are energized and HL when a compressor stage is energized.
Two-Speed Fan Operation
The W7220 controller can work with systems using a 2-speed supply fan. The W7220 uses input status to determine fan speed and controls the OA damper accordingly.
| State | Fan Speed |
|---|---|
| OCC | Low |
| Y1 | Low |
| Y2 | High |
| W | High |
The W (heating mode) status informs the controller where to position the OA damper for minimum position for the fan speed.
The 2-speed fan delay is available when the system is programmed for 2-speed fan. The default delay is 5 minutes.
When there is a call for Y1 In and a call for Y2 In during free cooling mode, the 2-speed fan delay starts. The OA damper modulates to 100% open, and the supply fan should be set to high speed. After the delay:
- The Y2 In call is satisfied with the damper 100% open and fan on high speed, and the call turns off.
- OR, if the call for additional cooling is not satisfied, the first stage of mechanical cooling will be enabled through Y1 Out or Y2 Out.
Wiring Diagrams and Component Information
Figure 8: Economizer with Sylk Bus sensors for enthalpy configuration with a Honeywell MS3103J or MS3105J communicating actuators.
Figure 9: Diagram illustrating a 2-position actuator and its connections, with notes on using ON/OFF actuators and programming AUX1 O.
Wiring Diagram Details (Page 20):
A detailed wiring schematic shows connections between the W7220 controller, sensors (MA TEMP, OAT, DA ENTHL, RA ENTHL), thermostat, and the rooftop unit. It includes component codes, Nordyne/Honeywell part numbers, wire color codes, and notes on specific wiring configurations.
- Component Code / Description:
- 622754 / MS3105J3030: Damper Actuator 24v
- 626621 / W7220A1000: Logic Module
- 626622 / C7400S1000: Fresh Air Enthalpy Sensor
- 626623 / C7250A1001: Mixed Air Temperature Sensor
- P1: Male Interface Unit Plug
- S1: Male Interface Unit Plug
- Wire Color Code: BLK, BLU, BRN, GRN, GRY, ORG, PNK, RED, TAN, VIO, WHT, YEL
- Notes:
- Unit wiring shown as reference only; check actual unit wiring.
- For thermostats with OCC connection, move white wire from pin #1 to pin #7 and connect thermostat OCC output to A1 terminal.
- Economizer pin location S1-2 connects to "W1" (Gas/Electric, AC) or "O" (Heat Pump Cooling).
- For mechanical cooling (compressor) to energize during economizer cooling mode, a thermostat "Y2" call is required. A 2-stage cooling thermostat is needed.
- Refer to Page 3 for unit low voltage wiring changes for W7220 JADE control module.
- Manufacturer/Distributor Information: RRS Rooftop Systems, A Ruskin Company, 1625 Diplomat Drive, Carrollton, Texas 75006. Phone: (972) 247-7447, Fax: (972) 243-0940.
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