Description
The Honeywell W7220A1026 is a JADE Economizer Logic Module - Honeywell's digital replacement for its earlier analogue economizer controls. It provides the inputs and outputs for economizer control with demand control ventilation and commissioning features, and proportions outdoor and return air dampers for free cooling in commercial HVAC equipment.
The module has a 2-line, 16-character LCD display and keypad that shows status for normal operation, setup parameters, checkout tests, alarms and error conditions - a significant service advantage over the potentiometer-and-LED analogue modules it replaces. It can be configured for four economizer strategies: referential or differential dry bulb, and referential or differential enthalpy.
The W7220 can run standalone, wired directly to a commercial setback space thermostat and sensors for outdoor air dry bulb economizer control, or be connected to optional Sylk Bus sensors for single or differential enthalpy control. The module supplies both power and communications on the Sylk Bus, and automatically detects sensors by polling. If a sensor loses communication after being detected, the module reports a device fail error on the display or through the AUX 1 OUT terminal.
* Brand / Manufacturer: Honeywell
* Model Number: W7220A1026
* Series: W7220 JADE Economizer Logic Modules
* Rated Voltage: 20 to 30 V AC RMS, 50/60 Hz
* Actuator Output: 2 to 10 Vdc, or Honeywell Sylk Bus communicating actuator
* User Interface: 2-line 16-character LCD display with keypad
* Economizer Strategies: Referential or differential dry bulb; referential or differential enthalpy
* Sensor Terminals: CO2 sensor, mixed air sensor, outdoor dry bulb sensor
* DCV (CO2) Sensor: C7232, 2-10 Vdc control signal; or wall-mount Sylk Bus TR40
* Other Sensors: C7250A dry bulb and mixed air; C7400S1000 temperature and humidity (optional); C7600 humidity (optional)
* Contact Ratings: 1.5 A run, 3.5 A inrush at 30 Vac
* Operating Temperature: -40°F to 150°F (-40°C to 65°C)
* Operating Humidity: 5 to 95% RH, non-condensing
* Dimensions: 4.98 in. H x 6.3 in. W x 1.34 in. D (126.4 x 160 x 34 mm)
* Wiring: All inputs and outputs Class 2; all wiring polarity insensitive
* Approvals: UL flammability rating UL94V-5V
* Compliance: Complies with California Title 24 energy efficiency standards
Typical applications include packaged rooftop units and other commercial HVAC equipment. The W7220 is commonly specified as a retrofit for older analogue economizer logic modules where the LCD interface and DCV capability are wanted. Sensors, actuator and thermostat are ordered separately.
Please note: the W7220 series is supplied in more than one dash number. Specifications above are for the W7220A module as published by Honeywell; if your application depends on a factory-configured parameter set, confirm the dash number against the unit you are replacing.. Honeywell. Honeywell. W7220A1026.
Warranty Information
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