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• If whole house fan product has a ducted system, ensure the duct is installed per

manufacturer instructions for the whole house fan. Improper installation may cause HERS

test failure.

• If whole house fan system has damper doors, ensure dampers are opening/closing as

expected. Malfunctioning damper doors may produce HERS test failures.

• If whole house fan is a multi-speed system, verify that you are testing at the lowest speed

required to meet the minimum WHF airflow rate listed on CF-1R report. Title 24 reports that

have modeled medium speeds for 2019 code, only need to be tested at medium speed.

• If the measured flow rate is failing (too low) try running WHF at a higher speed.

• If the measured airflow rate is failing HERS test at its highest operating speed, check the

attic pressure with reference to the home. Attic pressure WRT the home should be less than

40 Pa. Higher readings may indicate the home may not have enough venting for the installed

WHF.

• If the whole house fan is moving high volumes of air and you are unable to zero out the

hood, adjust the stand to be closer to the bottom of the flow hood. Aim for about 1’ away.

Содержание WHF-PFH

Страница 1: ...OPERATION MANUAL HERS POWERED FLOW HOOD MODEL WHF PFH MAKERS OF THE QUIETCOOL ADVANCED WHOLE HOUSE FAN...

Страница 2: ...ce personnel should service the system The user should not attempt to service the product 6 Maneuvering the Unit When lifting stand or moving the unit around the house be very careful not to drag it a...

Страница 3: ...Velcro iv Coroplast rectangular cutout v Soft plastic tubing with 4 barbed tee fittings pressure taps vi Fiberglass poles QTY 4 Bottom square Frame 27 5 x 27 5 Top Octagonal Frame Telescoping Legs i 4...

Страница 4: ...Do not route cord under furniture or appliances Arrange cord away from traffic area and where it will not be tripped over Do not place this equipment or power cord in water or other liquid Use only t...

Страница 5: ...needs to be between 4 5 from ceiling ii It is recommended to adjust height of legs prior to adding top octagonal frame c FOR RETROTEC FANS i Slide Retrotec fan in between the 4 legs See pictures below...

Страница 6: ...completely or test may yield inaccurate results 4 Ensure hood is flush by lightly pushing up on bottom of hood a If you see the top of hood move readjust poles by going higher b Check again and repeat...

Страница 7: ...Gauge 1 Take the pressure tap coming out the bottom of the flow hood and connect it to the input tap to read pressure 2 See page 9 for complete connection details Complete WHF PFH with TEC Model 3 Fa...

Страница 8: ...procedures 1 Open the window s that are typically opened during WHF operation 2 Turn on all WHFs required to meet the dwelling unit WHF airflow rate Adjust multiple or variable speed WHFs to operate...

Страница 9: ...he channel A pressure channel reference tap open to read pressure inside the dwelling 5 On TEC Model 3 fan connect the pressure tap from the blower door fan to the channel B flow channel input tap 6 O...

Страница 10: ...e airflow Verify all tube connections are properly connected for airflow measurement apparatus and hood adapter system Ensure proper connection of the WHF PFH flow hood to testing fan apparatus has a...

Страница 11: ...ow rate listed on CF 1R report Title 24 reports that have modeled medium speeds for 2019 code only need to be tested at medium speed If the measured flow rate is failing too low try running WHF at a h...

Страница 12: ...12 Rev 6 11 20 MAKERS OF THE QUIETCOOL ADVANCED WHOLE HOUSE FAN...