Retrotec DucTester 200 series with DM32 Manuale Utente Scaricare il pdf (Pagina 3)

□ Go to Home screen on gauge.

□ Adjust fan speed knob clockwise

until [Channel A] reaches test pressure.

□ If not possible, go to Step

5 for advice on changing setup.

□ Connect Speed Control Cable to fan.

□ For a test pressure of

25 Pa

*, tap

□ Enter 25, tap [Set]

□ Tap

to display what the

result would be at

exactly 25 Pa

Page 3 of 8

Step 3: Connect gauge & fan

□ Insert blue tube into the

supply register closest to

the air handler.

□ Read results directly from the gauge.

Speed Control Cable

□ Connect power cord.

□ Switch to on: “ l “. Green

light indicates that power

is connected.

□ Connect yellow and green

tubes to matching color

ports on fan. Ethernet

style Speed Control Cable

will disable the knob. It is

connected later in Step 4.

If Pressurizing, see tubing setup on page 7.

□ Connect Flex Duct to fan inlet for depressurization.

Ready to conduct the test by depressurizing the ducts:

Depressurization is easiest and permitted in all States

except CA & WA where it can still be used to

evaluate, but not for a final result.

Step 2: Connect to ducts (cont’d)

Total Duct Leakage Test: Depressurize

Step 4: Conduct test

To pressurize, connect the Flex Duct to fan exhaust.

All other connections remain the same

pressurize

Inlet

airow

Exhaust

Inlet

with Range Rings

inside Flex Duct

Exhaust

depressurize

Solid green Status light

indicates gauge is ready to

control speed.

airow

Depressurizing works best because the fan pulls the

Grill Mask tight on the registers during the test.

* 50 Pa for Northwest ENERGY STAR.

620.2

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Retrotec DucTester 200 series with DM32 Manuale Utente Pagina 3

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