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The SA-24 control box is an energy saving control unit designed to be used for controlling exhaust fans in vehicle exhaust systems, with or without a particle filtration system. Together with optional activation devices such as a pressure switch, wireless control, or micro switch, this energy saving controller makes a fully automatic system for the control of the vehicle exhaust fan. The controller only functions in an automatic mode. Depending on the configuration of a system, several options for switches and remote start functions are available. The two most common switches used, are the MSR-24/2 or BRC-MS micro switch mounted on an exhaust hose reel or balancer to start and stop the fan as the hose is pulled down for use or retracted for storage.

Unit of Measure

Specifications

Brands

 N/A Plymovent®

Length

 N/A 15.75 Inch400 mm

Width

 N/A 6 Inch152 mm

Height

 N/A 11.75 Inch298 mm

Mounting Hole Diameter

 N/A 0.4 Inch10 mm

Mounting Hole Location

 N/A On Centers 14.15 X 10.15 Inch359 X 258 mm

Weight

 N/A 25 lb11.34 kg

Box Rating

 N/A NEMA 12
Compliant With1 N/A CE cUL* NFPA

Automation

 N/A Automation

Options and Accessories

 N/A The MSR-24/2 is a single throw double pole micro switch that is installed on the exhaust hose reel. When the hose is lowered the MSR-24/2 will activate the SA-24 and turn the fan on. Auxiliary contact can be used to control an automatic damper.

The BRC-MS is a single throw double pole micro switch that attaches to the BRC-450 spring balancer on fixed and boom extractors. When the hose is pulled down to connect to the vehicle, the BRC-MS will activate the SA-24 and turn the fan on. Auxiliary contact can be used to control an automatic damper.

Product Combinations

 N/A The SA-24 control box is designed in conjunction with Plymovent vehicle exhaust extraction system components including Plymovent exhaust fans, spring and motorized hose reels, fixed exhaust extractors and booms specifically for vehicle exhaust applications.

Transport of The Unit

 N/A The SA-24 control box is delivered as self-contained exhaust system controller with automatic start function.
The manufacturer cannot be held liable for any damage to the unit due to shipping or mishandling. Always handle the unit and the accompanying options and/or accessories, if any, with care.

Operations

 N/A

The controller is set for automatic control of the fan from remotely located switch(s). Depending on the exhaust extraction system, different switches are available for starting the system. Mainly two types of switches will be used:
(1) The MSR-24/2 micro switch is installed on the hose reel to detect when the hose is being lowered to connect to a vehicle. The MSR-24/2 will activate the SA-24 and turn the fan on. The fan will automatically turn off when the hose is retracted or raised, the micro switch opens and the control box turns off the fan.
(2) The BRC-MS micro switch that attaches to the BRC-450 spring balancer on fixed and boom extractors. When the hose is pulled down to connect to the vehicle the BRC-MS will activate the SA-24 and turn the fan on. The fan will automatically turn off when the hose is retracted or raised. The micro switch opens and the control box turns off the fan.
The control box is designed to start a fan via remotely located switch(s). The activation switch can be one of the two (2) listed above, or any other type of maintained switch.

Automatic Mode:-
This mode of operation allows for automatic starting of the exhaust fan using one of the optional micro switches. When the exhaust hose is lowered or pulled down, the micro switch closes. This completes the circuit to the control box causing the fan to turn on. When the hose is retracted or raised the micro switch opens and the control box turns off the fan.
MSR-24/2:
Optional MSR-24/2 is a single throw double pole micro switch that is installed on the exhaust hose reel. When the hose is lowered the MSR-24/2 will activate the SA-24 and turn the fan on. Auxiliary contact can be used to control an automatic damper.
BRC-MS:
Optional BRC-MS is a single throw double pole micro switch that attaches to the BRC-450 spring balancer on fixed and boom extractors. When the hose is pulled down to connect to the vehicle, the BRC-MS will activate the SA-24 and turn the fan on. Auxiliary contact can be used to control an automatic damper.

Ambient Conditions

Minimum Operating Temperature

 N/A 41 ºF5 ºC

Nominal Operating Temperature

 N/A 68 ºF20 ºC

Maximum Operating Temperature

 N/A 104 ºF40 ºC

Storage Condition

 N/A 41 to 104 ºF5 to 40 ºCMaximum Relative Humidity 80 %

Suitable for Outdoor Use

 N/A No
  • 1 *For the most up-to-date UL information, including Plymovent, please visit the online certifications directory.