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©Retrotec Inc. 2012
Model 200 fan, Q32 DucTester
Model 1000 systems with 0.75 hp yellow wheel rim style fans
Model Q46 and Q56 systems with 0.75 hp yellow foam core fan.
Same curves as 1000.
Older Model Q4E, Q5E and QMG systems with 2 hp yellow foam
core Door Fan. Same curves as 1000.
Model Q4E, Q5E and QMG systems with 2 hp yellow foam core
Door Fan – all fans are self-referencing (have green tube)
0.75 hp black wheel rim style fan
Exhaust Fan Flow Meter – measures air flow through residential
exhaust fans between 10 and 124 CFM. This Device does not
currently work on many DM-2s since the minimum pressure is set
to 10 Pa and typical pressures inside the Exhaust fan box are
typically 1 to 8 Pa. The pressure in Pascals and table from the mfr
must be used to determine flow.
True Flow Grid – measures flow through a residential air handler
0.75 hp black wheel rim style fan
*White squares are the most commonly used Devices and are set as defaults on your gauge. Grey
settings are turned off or inactive. Your gauge may be set up differently by a Vendor of yourself.
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