Fieldpiece HG2 - HVAC Guide System Analyzer Instrukcja Użytkownika Pobierz pdf (Strona 7)

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Tests

1.1

Target Evaporator Exit Temperature

For given return plenum air conditions, Target

Evaporator Exit Temperature gives you an indication of

the proper indoor air ow.  is test can be easily per-

formed simultaneously with superheat or subcooling

tests.

If actual evaporator exit temperature is more than

3°F above or below the Target Evaporator Exit Tempera-

ture, an air ow problem may exist. Ensure that  lters are

clear, dampers are adjusted properly and the fan speed

is set correctly if it can be varied.  e Target Evapora-

tor Exit Temperature switch position uses the table from

California Title 24.

Direction

of Air ow

A-Coil

Filter

Fan

Dry Bulb and

Wet Bulb T/C

Dry Bulb T/C

Supply Plenum

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Figure 3. Setting up the ATH4 and

HVAC Guide

tester to measure dry

bulb and wet bulb temperatures

between ﬁ lter and coil.

1 2 3 4 5 6 7 8 9 10 11 12 ... 36 37

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Fieldpiece HG2 - HVAC Guide System Analyzer Instrukcja Użytkownika Strona 7