Troubleshooting

Problem: Exhaust fan is not operating or is not operating at design levels.

	Is the fan receiving power?	Replace fuses, reset circuit breakers, check disconnect.

	Is the belt loose or broken?	Replace or tighten belt.

	Is the fan rotating in correct direction?	Have the electrician correctly wire the fan.

	Is the make-up air operating?	Problems with make-up air may interfere with the exhaust fan -
	Is the make-up air operating?	check the manufacturers installation manual.
		check the manufacturers installation manual.

	Does the airflow need to be increased?	Adjust or replace pulleys to increase fan RPM, install a larger motor.

		Clean the fan wheel/blade, replace fan wheel if damaged, check for
	Does the fan vibrate?	loose bolts, check for broken or damaged components, check for
		rags and other foreign objects.

Problem: Hood is full of smoke. There is smoke coming out of the edges of the hood.

	Is the fan operating at design levels?	See exhaust fan troubleshooting section.

		Refer to test and balance report, design specifications and fan
		curves; have an electrician check the motor amperage; try removing
	Is the fan correctly sized?	the filter temporarily to see if capture improves. (Make sure to
		replace filter to prevent risk of fire!); switch to different filters with
		lower static pressure.

	Are the filters in good condition?	Clean filters, replace damaged filters, properly position filters.

	Is there sufficient make-up air?	Check make-up air unit, increase make-up air, make-up air should be
	(Kitchen should be in a slight negative
	but not excessive. Check to see if there	evenly distributed throughout the kitchen.
	is a strong draft through an open door).

	Does the current cooking equipment	Adjust or replace fan to match the cooking equipment load.
	match the original design?	Adjust or replace fan to match the cooking equipment load.
	match the original design?

	Are there multiple hoods on one fan?	One hood may be over exhausting and the other hood not drawing
	Are there multiple hoods on one fan?	enough. Restrict second hood to help problem hood.
		enough. Restrict second hood to help problem hood.

	Are there closed dampers in the duct?	Open dampers.

	Is the ductwork complex or to small?	Change to a higher static fan, modify the ductwork.

	Is the ductwork obstructed?	Clear obstruction.

	Is this a short circuit hood?	Turn off or reduce the amount of air supplied to short circuit.

Problem: Smoke blows away before reaching the bottom of the hood.

	Are there cooling fans directed at the	Turn off or redirect fans.
	hood or cooking equipment?	Turn off or redirect fans.
	hood or cooking equipment?

	Are there ceiling diffusers directing air at	Move diffusers to more neutral area or replace with a diffuser that
	the hood?	directs air away from the hood.

	Are there open windows or doors?	Close windows and doors.

		Find source of the draft and eliminate, add side skirts to hood (test
		with cardboard – use stainless for permanent side skirts); increase
	Are there cross drafts or other drafts in	the amount of overhang on the spillage side; add a 6 in. lip around
	the kitchen?	the base of the hood (test with cardboard – use stainless for
		permanent side skirts); make-up air should be spread out evenly
		through the kitchen.

Is the hood near a main walkway?

Add side skirts to hood (test with cardboard first); increase the amount of overhang on spillage side.

36 Canopy Hood

452413 specifications

The Greenheck Fan 452413 is a well-known model in the ventilation and air movement industry. Renowned for its durability and high performance, this fan is designed for commercial and industrial applications, ensuring optimal air flow and energy efficiency.

One of the standout features of the Greenheck Fan 452413 is its rugged construction. Made with robust materials that withstand harsh environments, this fan is built to last. Its housing is often constructed from galvanized steel, offering excellent resistance to rust and corrosion. This makes it suitable for various applications, from rooftop installations to indoor ventilations systems.

The fan's motor is another highlight. It typically includes high-efficiency motors that not only enhance performance but also help in reducing energy consumption. The Greenheck Fan 452413 often employs variable speed drives, allowing users to adjust the fan speed according to specific requirements. This flexibility facilitates energy savings and ensures optimal performance, especially in varying load conditions.

Noise reduction technology is also a focal point in the design of the Greenheck Fan 452413. The fan is engineered to operate quietly, which is crucial for environments where noise levels must be minimized, such as in residential areas, hospitals, or schools. The incorporation of innovative blade design reduces turbulence, resulting in lower operational noise without compromising airflow.

Another characteristic of the 452413 model is its ease of maintenance. Designed with user convenience in mind, the fan typically features access panels that allow for straightforward inspections and repairs. This design reduces downtime, ensuring that the ventilation system runs effectively without frequent interruptions.

Furthermore, Greenheck provides extensive customization options. The 452413 can be tailored to meet specific requirements, including size, airflow capacity, and additional features such as controls and accessories. This adaptability makes the fan a preferred choice across different sectors, including hospitality, manufacturing, and healthcare.

In summary, the Greenheck Fan 452413 stands out in the market due to its robust construction, energy-efficient motor technology, noise reduction capabilities, and ease of maintenance. Its versatility in customization further solidifies its position as a reliable solution for various ventilation needs, catering to both performance and efficiency in demanding environments. This fan embodies the quality and innovation that Greenheck is known for, ensuring a top-choice option for those seeking effective air movement solutions.