SIMPLE VENTILATION SOLUTIONS AirCycler® g2-k Installation & User’s Guide VENTILATION MADE BREEZY!™ a breeze to install • a breeze to use
TABLE OF CONTENTS AirCycler® g2-k Introduction Safety Considerations Installation Considerations AirCycler® g2-k Wiring Diagram Damper Location & Damper Installation Choose a Fresh Air Location AirCycler® g2 Controller Location 1.0 Theory of Operation 1.1 Operation Details 1.2 Operation Examples 2.0 AirCycler® g2 Operation 2.1 Reading the AirCycler® g2 2.2 Normal Operation Display 2.3 Entering Setup Mode 3.0 Setup Options 4.0 Calculated Flow Set Up 4.1 Setting Measured Supply Air Flow 4.
AIRCYCLER® G2-K INTRODUCTION The AirCycler® g2-k Whole House Mechanical Ventilation System includes the AirCycler® g2 Furnace Fan Timer, FanConnect™ Bath/Fan Light Switch with remote fan control, and a motorized fresh air damper. The AirCycler® g2 is a furnace fan timer and ventilation controller with outputs for operating a motorized fresh air damper and the FanConnect™ exhaust fan switch*.
AIRCYCLER® G2-K WIRING DIAGRAM KEY R - 24VAC Power C - Common Gt - Fan From Thermostat Gf - Fan To Furnace V - Vent Ex - Exhaust Fan Vnc - Normal Closed Vent (To power spring-return dampers that are normally open) 4 AC DOC 8.
DAMPER LOCATION The fresh air damper can be located anywhere in the inlet duct. Minimize the length of the inlet duct to improve air flow and improve system efficiency. It is recommended that the damper be as close to the return air plenum and the AirCycler® g2 controller as possible, and the inlet duct connect to the return plenum upstream of the system filter, and down- stream of any duct mounted sensors. DAMPER INSTALLATION The damper may be installed in any position.
1.0 THEORY OF OPERATION 1.1 OPERATION DETAILS The AirCycler® g2 Furnace Fan Timer is integrated with the home’s central furnace fan so that any time the central fan is turned on by the thermostat to provide heating or cooling, the AirCycler® g2 opens the motorized damper to let in a measured amount of fresh air. The fresh air is then distributed uniformly throughout the home through the existing ductwork. When ventilation requirements are met, the damper is closed to prevent over-ventilation.
1.2 OPERATION EXAMPLES CONT’D ONE HOUR VENTILATION (MINUTES) VENTILATION REQUIREMENTS = 30 CFM CONTINUOUS OR 1,800 CF/HR NORMAL CENTRAL FAN OPERATION + AIRCYCLER® G2 FORCED EXHAUST 0 15 45 30 60 CENTRAL FAN EXHAUST FAN DAMPER CLOSED DAMPER OPEN DAMPER OPEN DAMPER CLOSED FORCED ON BY G2 VIA FANCONNECT FOR 7.5 MIN 15 MINUTES OF HEATING/COOLING 7.
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2.0 AIRCYCLER® G2 OPERATION 2.1 READING THE AIRCYCLER® G2 S ETU P/ S TAT US OPERATION G2 DISPLAY KEY OA Damper Open EXH Exhaust Fan On FAN Central Fan On ON G2 Operation On (Forcing Central Fan On) % Percent Ventilate Complete for Hour CFM Air Flow Cubic Feet Per Minute Values SET Setup Mode REQ Required CFM Setting TIME Time Setting Mode HR Hour MIN Minutes AM Time - AM PM Time - PM FUNCTIONS APPLY WHEN ICONS ARE ACTIVE/ILLUMINATED LCD DISPLAY 2.
3.0 Setup Options Calculated Flow Calculated Flow Setup Calculated Time Setup Enter measured outside airflow to the air handler Calculated Time Enter required minutes per hour of ventilation Enter measured exhaust flow *If using FanConnect™ switch Enter required continuous airflow required by code If you know the amount of fresh air that goes into the air handler as well as the flow required by code, you can simply enter them into the AirCycler® g2 controller during set up.
4.0 CALCULATED FLOW SET UP 4.1 SETTING MEASURED SUPPLY AIR FLOW Flow measured during heat call The measured flow is the amount of air that enters the return side of the air handler from the outside air vent. Enter the measured flow. To accommodate variable speed air handlers, you can enter different values for heat, cool and fan. Factory default is 90 CFM. Flow measured during cooling call Flow measured during fan only call Press MODE to advance to the next setting.
5.0 CALCULATED TIME SETUP 5.1 SETTING NUMBER OF MINUTES PER HOUR OF SUPPLIED AIR FLOW REQUIRED Enter the minutes per hour that you require fresh air to be brought into the home. Factory default is 20 minutes. Press MODE to advance to the next setting. For installations without the FanConnect™ switch, go to section 5.4. 5.2 SETTING MINUTES OF EXHAUST FAN RUN TIME REQUIRED Enter the desired minutes/hour for exhaust fan run time. Factory default is 20 minutes.
6.0 CURRENT STATUS & SETTINGS PRESS THE UP ARROW FOR CURRENT STATUS To get detailed information on the current status of the AirCycler® g2, press the UP arrow. The status screens are the same for both Calculated Flow and Calculated Time modes. Press the UP arrow to advance to each setting. PRESS THE MODE BUTTON TO CYCLE THROUGH THE CURRENT TIME OF DAY To view the current settings, press the DOWN arrow during Normal Operation. Press the DOWN arrow to advance to each setting.
RECORD ALL SETTINGS ON THE INSTALL STICKER PROVIDED. LIMITED WARRANTY WILL BE VOID IF THE STICKER IS NOT PRESENT. 14 AC DOC 8.
7.0 INSTALLATION TESTING GUIDE Testing the AirCycler® g2-k completed installation is an easy two step process: STEP 1 Test the FanConnect(tm) connection & operation (if using FanConnect™ switch) STEP 2 Test thermostat, damper and furnace connection and operation LCD DISPLAY STEP 1 EXH - EXHAUST FAN IS ON a. With the thermostat off, turn on the FanConnect™ switch. OA - FRESH AIR DAMPER IS OPEN b. Confirm the exhaust fan is running c.
APPENDIX A TROUBLESHOOTING Problem: No power to AirCycler® g2 Check common wire connection. “C” must be connected to “C” on the furnace. Problem: EXH icon is flashing If the EXH icon is flashing it is indicating that the FanConnect™ switch has been on for more than four hours or has lost connection with the AirCycler® g2 controller.
APPENDIX B ASHRAE 62.2 REFERENCE CHART No. of Bedrooms Square Footage CFM Required: 7.5 CFM * (N+1) + A * 0.01 N = No. of Bedrooms A = Square Footage Technical Support: 1.877.FAN.CONTrol 17 AC DOC 8.
