Duct Testing Quickie Set-Up Guide

RetroTec Blower Door Duct Tester DM-2 Meter

Color Coded Connections

Retrotec DM-2 will work with all of these devices

Input B Ref B Ref A Input A

Program your DM2 for Duct Tester (or Blower Door) Turn Manometer ON Press On/Off button Press Exit button Set Up Manometer Press Setup button Arrow up or down to Device Setup, then press Enter Enable/disable Devices Highlight with up down arrows, right arrow clicks yes/no Du 200 and/or 1000 can eliminate duct tester DU 200 for a dedicated blower door meter can eliminate blower door 1000 for a dedicated duct test meter Hit EXIT once set up Scroll and select Mode Set Up press Enter Enable/Disable different tests Flow 50 Pa should be active: to change scroll to test pressure then press Enter. Change to desired pressure, then press Enter again. For Duct Tester change to 25 pa Exit, Exit to get to the main screen

N =.60 ( located in Setup ) Time = 1 second ( toggle Time Avg button) Zero = On ( toggle Auto Zero button)

Meter always wants to go back to default screen, always just press Exit to return to previous screen You can change the Full Screen Timeout duration by pressing Setup and scroll down to Full Screen Timeout (15 seconds is a good start)

Check Devices Enabled Toggle Device to see what is enabled – Should display only the devices you want to use For Duct Test – Press Setup – Arrow up/down to Device Setup – Press Enter – Highlight Du 200 and click YES with right arrow – Press Exit – Select Mode Set UP – Press Enter – Set to 25 Pascals – Press Range/Config to select the plate install on fan Hint: to start your tests with a good guess at the correct Plate use the “Mid” plate

Duct Testing Enable the 25pa for Total Leakage duct test Turn Off when doing Leakage to Exterior button to turn this function on and off

Retrotec Duct Test Set up for Duct Test Press ON Press Exit (to continue) Pressure and 25 Set Pressure (to 25 Pascals) Punch Buttons 2 and 5 Press Enter Press Exit Twice (to Stop Test)

Yes for Duct Tester NO for Blower Door Makes your meter much easier to use

Press Mode Shows two channels A&B Toggle through Mode again to look at fields: – Channels A & B – Pressure / Flow – Air Changes/Hour + volume ft3 to get meter to convert and display for Ducts Reminder: Use actual 25 Pascal for Leakage to Exterior Test (Do Not use setting)

Automatic Run Recommended Once equipment is set up and meter settings are correct, it is recommended to run the fan speed through manometer Press Set Pressure Duct Tester: Set Pa Press Enter The fan will respond automatically Be prepared!

Retrotec Duct Tester Retrotec Duct Tester Please confirm contents: Meter Case  DM-2 Meter  Power Supply/Charger  “Umbilical” Cord  Useful Forms + Handouts  Manual

Retrotec Duct Tester Retrotec Duct Tester Please confirm contents: Large Case  Fan + Duct  Plates o Low o Mid  Power Cord  Tubing:Red, Green, Blue (and extras)  Static Pressure Tap  Bungee Cords  Tube Fittings  Duct Mask / Masking Tape

On-Site Equipment List  Smoke Tube  TEC Exhaust Flow Meter  Pressure Pan  Foam Blocks  Flashlight / Headlight  Cordless Drill + Bits + Extra Battery  Screw Drivers  Vise Grips/Wrench  “Duct” Tape  Leatherman/Knife + Cardboard  Ladder / Stool  Calculator + Camera  Booties + Tyvek Suit  Trash Bags + Paper Towels