2200 Digital Fan, Retrofit Kit
Air Current Testers
Basic Wind Damping Kit
DM-2A, 3-Fan Splitter Box
DU200 Hard Panel Adapter
Deluxe Cordura Toolbag
Grill Mask
Leakage Split Kit
Low Flow Fan Field Calibration Plate
Remote Speed Control
Retrotec Toolbags
Wild Wind Tamer Wind Damping Kit

Cloth Panel Systems

Modular Hard Panel Systems

Three Fan Systems

Small-X Panel

Low Flow Fan Field Calibration Plate
Q32 Duc-Tester
R31 Economy Duc-Tester

2100 Calibrated Fans
2200 Calibrated Fans
2200 Digital Fan, Retrofit Kit
3300 Calibrated Fans
DU-Series Low Flow Fans

DM-2 Series 2 Channel Digital Pressure Gauge
DM-2A, 3-Fan Splitter Box

Clean Agent 2001
Energy 2001 Software

Gauges : DM-2A, 3-Fan Splitter Box

The Retrotec DM-2A, 3-Fan Splitter allows a single DM-2A to control all three fans of a Retrotec Model QMG system simultaneously. The DM-2A control signal is split so that the speed of all three fans will increase and decrease together.

The Splitter can be used with 3 standard-power 2200 or 2300 fans or 3 high-power 3300 series fans.

The Splitter can only be used with a DM-2A. It MUST NOT be used with a remote speed control and cannot be used with a DM-2.

This Splitter will not function with older 900, 2100, 3100, or 3200 fans. Some older Retrotec 2200 series fans may not be compatible — please provide your Retrotec sales representative with your serial number by phone or email.

Part Number

FN242

Splitter Connection

One DM-2A is connected using an Ethernet-style cable to the Splitter. Another 3 Ethernet-style cables connect the Splitter to 3 fans.

Detailed Connection Guide to Run 3 Fans

These steps describe how to use the DM-2A, 3-Fan Splitter to control your Retrotec Model QMG Blower Door

1. Connect an Ethernet-style cable between a DM-2A’s Speed Control port and the DM-2A port on the splitter.
2. Connect 3 Ethernet-style cables between the 3 “Speed Control” ports on the splitter and the 3 Fans.
3. Connect a Red tube from this DM2-A’s red pressure port and run it through the 3-fan panel in order to measure Room/Building Pressure on Channel A.
4. Connect a Yellow tube from the Yellow pressure port on the DM-2A to the Flow Pressure port on the 3300 Drive Unit or 2300 fan in order to measure the Flow Pressure for Fan #1.
5. Connect Yellow tubes to the Red and Yellow ports on a 2nd DM-2A or DM-2 to the Flow Pressure ports on Fan #2 and Fan #3 respectively. Flow Pressure 2 and Flow Pressure 3 are displayed on Channels A and B of the 2nd gauge respectively.
6. Use Retrotec E2001 or DoorFan3.0 or custom software to translate flow pressures into flows and for other results.

Note: the Advanced Calculation modes (Flow, ACH, EqLA, EfLA, etc) cannot be used on either gauge in this configuration.