Technical Specifications - Johnson Controls - LIT-1900820 - LIT-1900820

VD-1240 Thin Line Control and VD-1241 Low Leakage Insulating Control Dampers Catalog Page

Brand
Johnson Controls
Product name
LIT-1900820
Document type
Catalog Page
Document number
LIT-1900820
Revision date
2021-03-10
Language
English
Table 1. VD-1240 and VD-1241 Technical Specifications
Specification Description

Leakage Resistance - Fully Closed

6 cfm/sq. ft maximum at 4 in. static pressure

Pressure Drop (inches WG) - Fully Open

1 in. static pressure and 1,000 fpm fully open approach velocity

Operating Torque

VD-1240: 7 lb·in./sq. ft

VD-1241: 14 lb·in/sq. ft

based on 2.5 in. static pressure and 1,000 fpm fully open approach velocity

Temperature Rating

Standard Operating Conditions: -72 to +275 ° F (-58 to +135 ° C)

Actuator: -4 to 122 ° F (-20 to 50 ° C)

Approximate Weight

VD-1240 Damper: 7 lb/sq. ft (3.2 kg/sq. m)

VD-1241 Damper: 15 lb/sq. ft (6.8 kg/sq. m)

Actuator: 2.9 lb (1.32 kg)

Pneumatic D-306: 1.2 lb (0.54 kg)

Pneumatic D-3153: 10.0 lb (4.5 kg)

Table 2. VD-1240 Thin Line Control Damper Performance Data
Performance Description
Damper Width (in. [mm])

60 (1,524)

48 (1,219)

36 (914)

24 (610)

12 (305)

Maximum System Pressure (in. w.g.)

3.0

6.0

8.5

10.8

13.0

Maximum System Velocity (FPM)

3,000

4,000

4,000

5,000

6,000

Leakage - % of Maximum Flow

.08

.07

.08

.07

.08

Leakage - (CFM/sq. ft)

2.5

2.7

3.5

3.5

5.0

Table 3. VD-1241 Low Leakage Insulating Control Performance Data
Performance Description
Damper Width (in. [mm])

60 (1,524)

48 (1,219)

36 (914)

24 (610)

12 (305)

Maximum System Pressure (in. w.g.)

3.0

6.0

9.0

11.0

13.0

Maximum System Velocity (FPM)

3,000

4,000

4,000

5,000

6,000

Leakage - % of Maximum Flow

.08

.07

.08

.07

.08

Leakage - (CFM/sq. ft)

2.5

2.7

3.2

3.5

5.0