MDVS Tag: DF-1, DF-2. Architect/Engineer: Contractor: EXHAUSTO Job File: Use. Sizes. Listings. Description. CSI Specifications.

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1 Submittal Data MDVS Tag: DF-1, DF-2 Job Name: Parkside Memory Cottage ALF Representative: Tom Barrow Company Job Location: Port Charlotte, FL Job #: Architect/Engineer: Contractor: EXHAUSTO Job File: Use The MDVS TM, Modulating Dryer Venting System, is a mechanical exhaust system used to control and maintain proper pressure and exhaust for multiple commercial or industrial laundry dryers. Description The MDVS TM system consists of an exhaust fan, the BESB Box Ventilator, the MEC18 Mechanical Exhaust Control, XTP pressure transducer and a VFD-Variable Frequency Drive (3-phase ventilators only). The MEC18 maintains a constant pressure for the dryers by modulating the speed of the BESB Box Ventilator. The MDVS TM system is supplied as a complete package with ventilator(s), control(s), pressure sensor, duct probe and adapters for mounting on a duct or a wall. Sizes The system is available in multiple sizes as shown on the following page. Listings ETL-listed to UL705 for Power Ventilators with special consideration given to the transport of lint-laden air. CSI Specifications CSI Model Specifications are available from ENERVEX and via the internet at us.exhausto.com. The document number is: Operation The pressure set-point must be programmed manually via the potentiometer on the MEC18 control board. Other parameters, such as optional post purge and manual/ automatic reset, may be set with the dipswitches on the control board. The clothes dryers are not interlocked with the MEC18. When one or more clothes dryers are in operation, the control increases the speed of the ventilator to maintain the pressure set-point. When a clothes dryer shuts down, the MEC18 reduces the ventilator speed to maintain the setpoint. This sequence is repeated every time clothes dryer operation is initiated. When no dryers are in operation, the ventilator runs at an idle speed to maintain the pressure set-point. If proper exhaust cannot be maintained because of mechanical or electrical failure, the control will go into alarm mode and run the ventilator at 100% speed. If the ventilator experiences mechanical or electrical failure, the MEC18 will send and alarm signal to the building management system. This will not interrupt dryer operation because they are not interlocked with the control.

2 Submittal Data MDVS MEC18 TP DUCT PROBE ABB Max. RPM MEC18 ENERVEX Inc Bluegrass Lakes Pkwy. Alpharetta, GA P: F: T:

3 Product Information Box Ventilator BESB Description The BESB Box Ventilator is a high-efficiency ventilator with a backward curved centrifugal impeller. The BESB is completely insulated to reduce noise and condensation. The BESB is used in both intake and exhaust applications The fan is designed to exhaust lint-laden air from single or multiple type I and type II residential and commercial clothes dryers, exhaust commerical hoods, or to provide make-up air for laundry or mechanical rooms. The BESB Box Ventilator is a component in the MCAS Modulating Combustion Air System and MDVS Mechanical Dryer Venting System. Material The ventilator housing is galvanized steel, while the impeller is cast aluminum. The design is Type B, Spark Resistant Construction. A service door is provided to allow easy access to the motor and impeller. Impeller is cast aluminum and balanced with permanently attached lead balancing weights. Motor The BESB is equipped with an energy-efficient, totally enclosed, variable speed motor (TEFC). Commercial grade, 1 or 3-phase motor. Class A insulated, IP54 Protection Class. Sealed ball bearings. Thermal overload protection. Standard Equipment Slip connections with silicone seals. Junction Box Accessories EBC 12 Modulating Fan Control EBC 14 Pressure Control MEC 18 Exhaust Control EBC 30 Modulating Pressure Control Variable Frequency Drive, VFD Flexible connections, FLF Proven Draft Switch, PDS Listings UL705, Standard for Power Ventilators with special consideration for venting lint-laden air from single or multiple dryers and CSA 22.2 No. 113, Standard for Fans and Ventilators. Component in an ETL Listed MCAS System Component in an ETL Listed MDVS System CE compliant Manufactured at ISO9001 certified plant Complies with and meets Type B, Spark Resistant Construction per AMCA standard classifications of Spark Resistant Construction. Warranty 2 year factory warranty Specifications are subject to change without notice.

4 Product Information Specifications Model BESB 250 BESB 315 BESB 400 BESB 500 Fan Type Motor Type Capacity Centrifugal Impeller (B-Wheel) TEFC Voltage V AC 1x120 3 x /3x Amperage Amps / / /4.1 Motor Output HP kw RPM Weight lbs Duct Connection kg E in mm Dimensions A in mm B in mm C in mm D in mm G in mm H in mm J in mm K in mm L in mm M in mm Sound Diagrams Model Lw db (measured in accordance with ISO 3744) Lp db 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz (A) BESB BESB BESB BESB ENERVEX Inc Bluegrass Lakes Pkwy. Alpharetta, GA P: F: T: info@enervex.com

5 Product Information Mechanical Exhaust Control MEC 18 Use The MEC 18 is a fan control used to monitor pressure in single or multi-story building exhaust applications. The control modulates the fan speed to maintain proper and constant pressure in the exhaust system. The MEC 18 is used with models EFV, BESF and BESB. The MEC 18 is for indoor installations only. Typical uses include: clothes dryer venting, bathroom and kitchen exhaust and other building venting applications. Description The MEC 18 monitors pressure in an exhaust duct via a XTP2 Sensor. The XTP2 constantly senses the pressure in the duct and as the pressure varies, the control adjusts the speed of the fan to maintain the pressure set-point. The MEC 18 operates a single phase fan using a VAC signal. The control sends a 0-10 VDC signal to a Variable Frequency Drive to operate a 3- phase fan. When the system is energized, the fan begins to run at full speed. Once the pressure setpoint is reached in the duct, the control adjusts the fan speed to maintain proper pressure. The control contains an optional integrated safety system that shuts down the appliance(s) in the event of a mechanical or electrical fan failure. For multiple appliance interlock one or more ES12 controls may be required. The control has fast reaction times (max. 20 seconds) and a very stable control signal assuring accurate fan operation. Material Enclosure is made of polycarbonate and is NEMA 4x rated. Standard Equipment MEC 18 Control Box XTP2 Sensor Stack Probe and Silicone Tubing XTP2 Sensor MEC 18 Control Box Listings ETL listed to UL508 and CSA C22.2 No ; Standard for Industrial Control Equipment CE Compliant Manufactured at ISO9001 certified plant. Warranty 2-year factory warranty Silicone Tubing Chimney Probe Specifications are subject to change without notice.

6 Product Information Specifications MEC 18 Control Power supply V 1x120VAC Amperage A 6.3 Operating temperature F/ C -4 to 122 / -20 to 50 Range of operation inwc/pa / Tolerance inwc/pa 0.01 / 3 +/-10% Output Current ma max. 10 Max. Load 120 VAC / 8A Real-time PID Control Method Infinitely variable Real-time PID Signal Stability +/- 0.5% Ramp Up/Down Time Seconds max 20 Output VAC VDC 0-10 Dimensions A in/mm 7.17 / 182 B in/mm 7.09 / 180 C in/mm 4.37 / 111 Weight lbs/kg 3.0 / 1.5 EMC standard Emission EN Immunity EN XTP2 Sensor Power supply VDC Amperage ma <20 Output VDC 0-10 Operating temperature F/ C 0 to 160 / -18 to 71 Accuracy +/- 0.08% Dimensions D in/mm 3.70 / 94 E in/mm 5.12 / 130 F in/mm 6.18 / 157 G in/mm 3.13 / 80 Weight lbs/kg.6 /.3 Chimney Probe Dimensions H in/mm 4.25 / 108 I in/mm 3.50 / 89 MEC MEC ENERVEX Inc Bluegrass Lakes Pkwy. Alpharetta, GA P: F: T: info@enervex.com