Duct TestingQuickie Set-Up Guide

RetroTec Blower DoorDuct Tester

DM-2 Meter

Color CodedConnections

Retrotec DM-2 will work with all of these devices

Input B

Ref B

Ref A

Input A

Program your DM2 forDuct Tester (or Blower Door)

Turn Manometer ONPress On/Off button

Press Exit button

Set Up ManometerPress Setup buttonArrow up or down to Device Setup, then press Enter

Enable/disable DevicesHighlight with up down arrows, right arrow clicks yes/noDu 200 and/or 1000

can eliminate duct tester DU 200 for a dedicated blower door metercan eliminate blower door 1000 for a dedicated duct test meter

Hit EXIT once set up

Scroll and select Mode Set Up press EnterEnable/Disable different tests

Flow cfm @ 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 flow @ 25pa for Total Leakage duct test

Turn Off the @25 when doing Leakage to Exterior

Click @Pressure button to turn this function on and off

Retrotec Duct TestSet up for Duct Test

Press ONPress Exit (to continue)Pressure and Flow @ 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

• Press @Pressure to get meter to convert and display CFM @25 for Ducts

• Reminder: Use actual 25 Pascal for Leakage to Exterior Test (Do Not use the @25 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 PressureDuct Tester: Set to @25 Pa

Press EnterThe fan will respond automatically Be prepared!

Retrotec Duct TesterPlease confirm contents:

Meter Case DM-2 Meter Power Supply/Charger “Umbilical” Cord Useful Forms + Handouts Manual

Retrotec Duct TesterPlease confirm contents:

Large Case Fan + Duct Plates o Lowo 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