4210 Series Blower Door Package | 2 Fan High Performance

Product code: US4210-E

Model 4210

Contact for Pricing

Overview Features
Included Items
Tech Specs
Manuals & Guides

Model 4210 Contra System

The Model 4210 Contra System features two Model 6000 Fans running in series but in opposite directions. Primarily designed as a duct tester, it can also be adapted for testing larger enclosures when paired with a Large Door Frame and high-pressure cloth.

This system operates with two 1.5 hp fans in contra mode, where the fans are in series with contra-rotating blades moving in opposite directions. While typical house testing fans lose efficiency beyond 100 Pa and generate only about 100 CFM at 500 Pa, the Model 4200 Contra System delivers an impressive 5,000 CFM at the same pressure, making it a powerful tool for high-pressure testing applications.

Equipped with the newly released, industry-changing DM32X gauge, the Model 4200 Contra System ensures precision and real-time data collection. It is ideal for research projects requiring high flow at high pressure, making it well-suited for testing building components such as wall sections, mockups, roofs, doors, windows, or pressure vents. It is also perfect for ISO standards testing that requires airflow in both directions at pressures up to 300 Pa.

1 x 4000 Series Fan Set

4000 Series Fan
High Power Drive for 6000 Series Fan (120V/60Hz, 240V/50Hz, or 110V/50Hz)
Range Ring A
B8 Plate
8 x Blank Range Plugs
Blower Door Tubing Kit
Tubing Umbilical
Fan Cover
Power Cord
System Calibration Verification Report

1 x SmartCloth™ Door Panel & Frame

Large SmartCloth™ Wind Dampening Cloth Door
Large Aluminum Frame, Etched with Sizing Markings
Traveling Case

1 x DM32X Gauge Package

DM32X Gauge
Gauge Case
USB-C Charging Cable
Cat5 Cable
ISO17025 calibration of DM32X
Gauge Calibration Verification Report

2 x Fan Case

1 x System Accessories Case

1 x 4000 Series Fan Connector Kit with Instruction

1 x Control Cable for Digital Fan – 1ft (.3m)

Model 6000 Fan
	Flow Into:	CFM	Litres/sec	M3/h
Max Flow, per fan (60 Hz) Reduces values by 15% for 50Hz fan	Free Air	8,100	3,823	13,762
	50 Pa	7,700	3,634	13,082
	75 Pa	7,400	3,492	12,573
Minimum Flow:
on Included Range B1	50 Pa	95	49	161
on Optional Range 74	50 Pa	37	17	63
on Optional Range 47	50 Pa	21	10	35
on Optional Range 29	50 Pa	9	4	15
Dimensions:	22″ (55.9 cm) inlet diameter, 9.75″ (24.8 cm) long, 25″ (63.5 cm) height
Weight:	33.5 lb (15.2 kg) or 35.2 lb (16.0 kg) with Ring A & Plated B8 installed
Flow Accuracy:	+/-5%
Power:	120V@60hz/22.0A or 240V@50hz/10.9A or 110V@50Hz/22.0A
Recommended Fan Calibration Interval:	5 years
Digital Gauge Model:	DM32X (Click Here)

Manuals

QuickGuides

Replacement Items for Model 5000 6000

Overview Features
Included Items
Tech Specs
Manuals & Guides