Retrotec DucTester 341 Instrukcja Użytkownika Pobierz pdf (Strona 80)

Page 80 of 83

©Retrotec Inc. 2014

Total Duct Leakage Test Form (CA) Test date: _______________/20____

Fan Model _______________Fan Serial # ______________ Digital gauge Serial # ___________________

Address: ________________________ Contact: _____________________ Phone: ______________

________________________________ Technician: ________________________________

The DucTester measures the total leakage of a duct system by pressurizing all ducts to 25 Pascals with

the air-handler off and the registers taped over.

Step

…



Detailed Description of the Step

Position DucTester near return

Ensure the flex will reach the return grill

Turn Air-handler off

Put your car keys beside the switch

Remove the furnace filter

Cover filter opening

Attach Flange + flex to return register

… or __access door in the air handler

Insert blue tube in a supply register

Seal all other registers

Do NOT seal to the wall or ceiling.

Open doors or windows

Connect the DucTester

__ yellow tube, __ power cord, __ speed control, __green tube.

Connect the DM-2

Turn on and set up the DM-2

Create a 25 Pa pressure in the ducts

Range Configuration

____

Record Flow and Pressure

Record Flow with @ 25 Pa displayed. Record n

and Time Avg displayed.

____ CFM, ___ Pa with NO @ Pressure displayed.

____ CFM, __ @ 25 feature used.

___ n and ___ seconds of Time Average displayed.

Record Flow Direction

___ pressurize with flow into ducts, __depressurize

Maximum Allowable duct leakage (per next

page) is:

____ CFM, ___ Pass, ___ Fail.

Remove tape

Remove tape from registers.

Turn HVAC equipment back ON

Re-install the furnace filter and turn all HVAC equipment back ON

Recording form based on CA Title 24

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