Greenheck Fan 41, 81 Maximum Damper Rating B Dimension 25 lb.-in. Models 68, Accessories

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SERIES 41 AND 81 MODUTROL IV™ MOTORS

TOP VIEW

TOP VIEW OF BRACKET

 

 

 

 

 

 

 

 

 

 

1/4

(7)

4-7/8

4-1/4

(124)

(107)

 

 

 

4-5/8

5-13/16

 

 

 

(116)

 

 

 

(148)

 

 

5-1/2

 

 

 

 

2-5/16

 

 

(140)

 

 

 

 

(58)

 

 

 

 

 

 

 

 

11/16

 

 

 

 

(17)

 

 

 

 

POWER END

 

13/16

 

 

 

3

(20)

 

 

1/4 (7)

4-1/16 (103)

 

1-1/2 (37)

 

 

 

 

4

 

 

 

4-7/8 (124)

4-1/16 (103)

 

 

 

5-9/16 (141)

 

 

 

 

 

 

WIRING

 

 

BOX

 

 

BASE

 

 

MOTOR

1

 

6-7/16

 

 

(164)

AUXILARY

POWER

5-3/8

 

 

END

END

(137)

 

 

1

 

 

2-9/16

 

 

(66)

 

 

2

9/16 (15)

 

3

 

2

 

 

 

 

4

ADAPTER

 

3/4

 

(19)

BRACKET

 

 

 

SOME MODELS DO NOT HAVE AN AUXILIARY SHAFT. ALL OTHER DIMENSIONS ARE THE SAME.

FOR HIGH TORQUE (60 LB-IN.) SPRING RETURN MODELS 8-3/4 (222); FOR LOW TORQUE (25 LB-IN.) SPRING RETURN MODELS 8-1/4 (210).

FOR HIGH TORQUE (60 LB-IN.) SPRING

RETURN MODELS (SHOWN).

FOR LOW TORQUE (25 LB-IN.) SPRING

RETURN MODELS.

M17711

Fig. 1. Series 41 and Series 81 Modutrol IV Motor mounting dimensions in in. (mm).

Dead Weight Load On Shaft (maximum): Power or Auxiliary End: 200 lb. [90.8 kg].

Combined Load: 300 lb. [136 kg]. (Dual-stroke motors only.)

Maximum Damper Rating [B Dimension]: 25 lb.-in. Models: 68 in.

60 lb.-in. Models: 34 in.

NOTE: The B dimension is the length of the damper side perpendicular to the drive shaft.

Ambient Temperature Ratings:

Maximum: 150°F (66°C).

Minimum: -40°F (-40°C).

Torque and Timing: See Table 4.

Approvals:

Underwriters Laboratories Inc. Listed: File No. E4436, Guide No. XAPX.

Canadian Standards Association Certified: General listed File No. LR1620, Guide No. 400-E.

Accessories:

198162AA Internal Transformer; 120/208/240 Vac 50/60 Hz primary, 24 Vac secondary.

198162EA Internal Transformer; 120 Vac 50/60 Hz primary, 24 Vac secondary.

198162GA Internal Transformer; 220 Vac 50/60 Hz primary, 24 Vac secondary.

198162JA Internal Transformer; 24 Vac 50/60 Hz primary, 24 Vac secondary (for electrical isolation).

220736 Internal Auxiliary Switch Kit can be field-installed on TRADELINE models. One- (220736A) and Two- (220736B) switch kits available.

220738A Adapter Bracket raises motor shaft height by 19 mm to match that of previous Modutrol® Motor models.

220741A Screw Terminal Adapter converts the standard quick-connect terminals to screw terminals.

221455A Infinitely Adjustable Crank Arm approximately

0.75in. shorter than the 4074ELY Crank Arm, can rotate through downward position and clear motor base without requiring adapter bracket.

4074ERU Weatherproofing Kit provides NEMA 3 rating for Modutrol IV Motors mounted in position other than upright.

3

63-2187—3

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Contents Features ContentsApplication Electrical Ratings See Table SpecificationsModutrol IV Order Number Guide See Table Dimensions See Fig Ordering InformationTorque and Timing See Table Approvals Maximum Damper Rating B Dimension 25 lb.-in. Models 68Ambient Temperature Ratings AccessoriesInstallation When Installing this ProductLocation Mounting Valve Linkages WiringWiring Box Damper LinkagesSettings and Adjustments Stroke SettingBefore Setting Stroke Auxiliary Switches Setting Stroke FigAuxiliary Switch Adjustment Equipment Damage Hazard Can damage the motor beyond repair Damper Application Operation and CheckoutOperation CheckoutValve Application ReplacementDamper Application Valve ApplicationHome and Building Control

41, 81 specifications

Greenheck Fan 81,41 is a robust and highly efficient indoor air handling unit designed to meet the demands of modern commercial and industrial environments. Renowned for its versatility, this model provides optimal performance and reliability, making it a popular choice among HVAC professionals.

One of the standout features of the Greenheck Fan 81,41 is its advanced motor technology. The unit is equipped with high-efficiency motors that contribute significantly to energy savings. These motors not only reduce operational costs but also comply with the latest energy regulations, making the unit an eco-friendly choice for clients looking to minimize their carbon footprint.

The fan's design includes a premium backward-inclined impeller, which helps in improving the overall aerodynamic efficiency of the system. This impeller design not only minimizes noise levels but also enhances static pressure capabilities, ensuring that the system operates quietly and efficiently under various load conditions.

Incorporating cutting-edge control technologies, the Greenheck Fan 81,41 offers flexible integration with building management systems. Its compatibility with variable frequency drives enables precise speed adjustments, optimizing airflow as per the required demand. This feature also enhances system responsiveness, contributing to better indoor air quality.

Built with durability in mind, the unit features a robust construction that can withstand challenging environmental conditions. The casing is often made from galvanized steel, with optional powder coating for additional corrosion resistance. This ensures a long lifespan and reduced maintenance costs, making it a wise investment for any facility.

Another key characteristic of the Greenheck Fan 81,41 is its modular design, which allows for easy installation and maintenance. The unit is designed to fit into tight spaces without compromising its performance. Moreover, the accessibility of components within the unit allows for quick servicing, minimizing downtime.

In summary, the Greenheck Fan 81,41 stands out with its energy-efficient motors, advanced aerodynamic design, integration with modern control systems, durable construction, and ease of maintenance. These features make it an essential component for efficient air handling in various commercial and industrial applications, ensuring optimal performance and longevity.
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