Retrotec DucTester 341 - Manual (Page 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
1 Position DucTester near return Ensure the flex will reach the return grill
2 Turn Air-handler off Put your car keys beside the switch
3 Remove the furnace filter Cover filter opening
4
Attach Flange + flex to return register … or __access door in the air handler
6
Insert blue tube in a supply register
7
Seal all other registers Do NOT seal to the wall or ceiling.
8
Open doors or windows
9
Connect the DucTester __ yellow tube, __ power cord, __ speed control, __green tube.
10
Connect the DM-2
11
Turn on and set up the DM-2
12
Create a 25 Pa pressure in the ducts
13 Range Configuration
____
14
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.
15
Record Flow Direction
___ pressurize with flow into ducts, __depressurize
16
Maximum Allowable duct leakage (per next
page) is:
____ CFM, ___ Pass, ___ Fail.
17
Remove tape Remove tape from registers.
18
Turn HVAC equipment back ON Re-install the furnace filter and turn all HVAC equipment back ON
Recording form based on CA Title 24