Unified Brands Kitchen Ventilation Systems Final Air Balance, Make-Upair Hoods Exhaust Fans

START - CHECK - BALANCE

MAKE-UP AIR HOODS EXHAUST FAN(S)

1.Open all doors and/or windows leading to outside.

2.Start the exhaust fan only. Do not run the supply fan or Make-up unit.

3.Refer to Randell Air Systems drawings and/or U.L. information label on hood for proper CFM requirements.

4.Adjust speed of exhaust fan to obtain proper air velocities and CFM through grease filters.

SUPPLY FAN OR MAKE-UP AIR UNIT

1.Start the supply fan and/or Make-up unit only. Do not run the exhaust fan.

2.Refer to Randell Air Systems drawings or U.L. information label on hood for proper CFM requirements.

FINAL AIR BALANCE

MAKE-UP AIR HOODS 1. Close all doors and windows.

2.Operate all exhaust fans even those serving other hoods, supply fans, make-up air unit and building HVAC system.

3.Turn on all cooking equipment under the hood and preheat to operating temperature.

4.Produce large quantities of smoke or steam.

5.Observe capture of vapors.

6.If all vapors are not totally captured, fine tune the system by adjusting the air volume control damper installed in the supply collar. Slightly reduce the amount of supply air directed under the hood until full capture is obtained.

7.Check total pressure in building. Pressure should not exceed .02 negative pressure.

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