The hood lights burn out often.
Excessive vibration will cause standard incandescent bulbs to fail early. Replace with rough service bulbs. Another cause is poor contact with the brass tab in the bottom of the light socket. This will cause the bulb to overheat at the point of contact. This is usually a small amount of solder at the base of the bulb. This solder may melt allowing air to enter the bulb. Once air replaces the inert gas in the bulb the tungsten element oxidizes and the bulb fails. You can tell this has happened by the smoky grey deposits inside the bulb Adjust the tab in the light socket so that it is about 1/4" above the bottom of the socket. Loose wires in the light socket may also result in bulb failure.
Stainless steel doesn't rust under normal conditions. Stainless gets its non corrosive properties from the chromium in the alloy. The chromium atoms form a passive surface film over the base steel very much like the paint protects your car. Once this layer is removed the base metal is exposed to the moisture in the atmosphere and rust forms. Chlorine in any form combines with the chromium and removes this protective layer and exposes the base metal and rust will occur. NEVER use any chemicals that contain chlorine near any stainless. This includes any cleaners, acids to clean quarry tile or brick, and some detergents. Even the vapors can attack stainless steel. Never use steel wool to clean stainless. Particles of the steel wool will get trapped in the grain of the stainless and these steel particles will rust.
The grease doesn't drain into the collection cup.
There could be something in the grease trough that is preventing the grease from draining. Remove filters and check the trough. Grease troughs should be cleaned frequently to remove any solid sediment that accumulates restricting the flow of grease.
Water is collecting in the light fixtures.
This water is entering the fixture from above. The glass globe is gasketed and if it is on tight water cannot enter form below. The probable cause of this is the duct is leaking. Look at the top of the hood above the ceiling and if you see puddles of water and grease on top of the hood, the duct has a leak. If the duct in not insulated you will probably see some areas, especially in the corners, that look wet.
How do I clean the hood?
Only use mild detergents to clean stainless. DO NOT use any cleaner with chlorine. Use a soft rag. DO NOT use any abrasive pads or steel wool.
Filters should be cleaned as often as necessary. Clogged filters don't work efficiently and aremore difficult to clean. Where heavy charbroiling is done you should clean every day. If you are only baking you may only need to clean weekly. What's important is to set up a schedule and clean accordingly.
Grease is leaking outside the hood or collecting in the light fixtures.
There is probably a leak in the duct allowing grease to collect on top of the hood and it is draining into the fixtures. Check the top of the hood above the ceiling. Any puddles of grease or water indicate there is a leak in the duct.
Is ETL the same as UL?
Yes, both are Nationally Recognized Testing Laboratories that test, certify and inspect products for safety and performance for manufacturers. The standard to which our hoods are tested is UL 710, Exhaust fans are tested to UL Standards UL 762 & UL 705 . You can visit this link for a comparison.
What type or replacements bulbs do I need to use?
My filters won't come out of my hood, how do I remove the filters?
A. My hood only has 2 filters.
First lift one filter in the track and moving it toward the back of the grease plenum rest it in the trough with the top leaning o the back of the grease plenum, filter should be standing near vertical and away from filter track. Next side remaining filter over and remove this filter as normal, then reach into plenum and remove the first filter.
C. Neither A or B describe my hood.
How do you adjust a pulley?
The fan leaks when it rains.
The fan motor shut off and starts again after several minutes.
The exhaust fan is not performing as well as it did in the past.
The supply fan is not performing as well as it did in the past.
The exhaust fan won't shut off when I turn the switch off.
The supply fan will not turn on.
Dust and pollen is coming through the supply duct.
The motor on a direct drive fan is running at higher amps than the nameplate lists.
Is there a comparison of fan noise to noises we recognize?
How do you change the voltage of a fan in the field?
All motors are suitable for high and low voltage applications. Single phase motors are rated 115/208-230. This means the low voltage is 115 volts and the high is 208-230. Similarly three phase motors are rated 208-230/460. This means that the low voltage is 208-230 and the high voltage is 460. To change the supply voltage, refer to the diagram on the motor label for wiring instructions. If a prewire is included on the job you will need to replace the contactors and/or overloads because of the change in FLA (refer to the motor label). If the supply fan is a heater, one will need to rewire the KVA transformer for the new voltage. NOTE: A single phase motor cannot be converted to three phase and a three phase cannot be converted to single phase. The motor must be replaced.
Does adding an explosion proof motor to a fan make it explosion proof?
Simply adding an explosion proof motor to a fan does not make it explosion proof. Explosion proof fans have to be modified to meet the AMCA requirements listed below. In some jurisdiction, explosion proof switches and filled conduits have to be provided due to these variations in design we do not offer an AMCA construction.
How does the Remote Heater Control Panel work?
Makeup heater blower runs but heat will not come on.
Makeup heater has power but fan will not turn on.
The direct fired makeup heater works fine on a mild day but blows cold air on very cold days.