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Submittal Sheet

Document No. 154-086

February 5, 2009

SED2 VFD NEMA Type 3R Bypass/Air Conditioner

http://www.sbt.siemens.com/hvp/drives Siemens Industry, Inc.

Description

The NEMA Type 3R Bypass with Air Conditioner allows

SED2 to be employed in a harsh environment.

The SED2 is designed specifically for HVAC applications

and supports a variety of digital and analog I/O and provides

built-in PID features to control pumps and fans. For

information on the family of SED2 VFDs, see the SED2

Variable Frequency Drives Submittal Sheet (154-042).

Features

Bypass Power

• 3-Contactor: Input, Output, and Bypass

− Overload protection in bypass mode.

− Step-down transformer with fused primary and

secondary.

− Contactors electrically and mechanically

interlocked.

− Drive test function.

− Complete electrical isolation of drive.

• Input Device

− Fused disconnect (optional).

− All doors are interlocked and padlockable.

− Circuit breaker.

• Reactor Options

− Line reactor mounted in bypass enclosure.

− Line reactor supplied separately (in NEMA Type

3R enclosure).

− Load reactor (in NEMA Type 3R enclosure)

supplied separately.

• Air Conditioner

− NEMA Type 4.

− Cooling capacity of 1,000 to 20,000 BTUH.

− Digital temperature controller.

− Active condensate management system.

− Unit efficiency.

− Compressor Protection System.

Bypass Control

• Auto Bypass

Relay logic allows user to send the motor to bypass

mode based on the drive’s programmable relay.

• Enable Input

Generally used for safety tie-ins; the motor will not

operate the drive or bypass when open.

• Common Remote Start/Stop

Can be used in both drive and bypass mode.

• Essential Services Mode

− Typically used for smoke purge; the motor goes to

bypass regardless of the selected mode.

− No call to stop will have an effect, including open

safety or stop commands.

− Only turning the power off or opening this contact

will stop the motor.

Bypass – Door Mounted Control Devices

• 3-Contactor Units

− Drive-Off-Bypass selector

− Bypass pilot light

− Drive Test On-Off selector

Summary of content (7 pages)

PAGE 1
Submittal Sheet Document No. 154-086 February 5, 2009 SED2 VFD NEMA Type 3R Bypass/Air Conditioner Description The NEMA Type 3R Bypass with Air Conditioner allows SED2 to be employed in a harsh environment. The SED2 is designed specifically for HVAC applications and supports a variety of digital and analog I/O and provides built-in PID features to control pumps and fans. For information on the family of SED2 VFDs, see the SED2 Variable Frequency Drives Submittal Sheet (154-042).
PAGE 2
Submittal Sheet Document No. 154-086 February 5, 2009 SED2 VFD NEMA Type 3R Bypass/ Air Conditioner Accessories • • • • • • SED2 NEMA Type 3R VFD & Bypass EMC Filter Assembly for Enclosure Size ABC, PN 994-830 SED2 NEMA Type 3R VFD & Bypass EMC Filter Assembly for Enclosure Size DEF, PN 994-831 NEMA Type 3R Reactor Enclosure, Small, PN 994-816 NEMA Type 3R Reactor Enclosure, Medium, PN 994-817 NEMA Type 3R Reactor Enclosure, Large, PN 994-818 Floor Mounting Kit, PN 994-809 Dimensions Figure 1.
PAGE 3
SED2 VFD NEMA Type 3R Bypass/ Air Conditioner Submittal Sheet Document No. 154-086 February 5, 2009 Table 1. NEMA Type 3R Bypass and NEMA Type 3R Bypass with Air Conditioner Output Current Ratings (Amps)—Per NEC Motor Tables. HP .75 1 1.5 208V 2.3 3.0 3.9 5.5 240V 2.2 480V 1.1 3.0 3.9 5.5 1.6 2.1 1.3 1.4 575V .5 .9 2 3 5 7.5 10 15 20 25 30 7.4 10.4 16.7 22 28 42 54 68 80 6.8 9.6 15.2 22 28 42 54 68 80 3.0 3.4 4.8 7.6 11 14 21 27 34 2.1 2.7 3.9 6.
PAGE 4
Submittal Sheet Document No. 154-086 February 5, 2009 SED2 VFD NEMA Type 3R Bypass/ Air Conditioner Figure 3. NEMA Type 3R Bypass Terminations. Page 4 of 7 http://www.sbt.siemens.com/hvp/drives Siemens Industry, Inc.
PAGE 5
SED2 VFD NEMA Type 3R Bypass/ Air Conditioner Submittal Sheet Document No. 154-086 February 5, 2009 Figure 4. NEMA Type 3R Bypass with Air Conditioner Power Circuit. NOTES: 1. 2. 3. 4. 5. 6. 7. 8. Branch circuit protection to be provided by installer, per UL508A, if not provided with drive. For bypass operation modify these drive parameters: P0704 (0) and P0704 (1) = 3. Control and communication wiring should be 300V UL minimum.
PAGE 6
Submittal Sheet Document No. 154-086 February 5, 2009 SED2 VFD NEMA Type 3R Bypass/ Air Conditioner Table 2. NEMA Type 3R Bypass with Air Conditioner Specifications. NEMA Type 3R Bypass Specification Input Voltage (3 phase) Temperature Humidity Description 208V, 3 AC ±10% 240V, 3 AC ±10% 480V, 3 AC ±10% 575V, 3 AC ±10% Operating: 14°F to 122°F (–10°C to 50°C) Storage: –40°F to 158°F (–40°C to 70°C) 0 to 100% rh Table 3. SED2 Drive Specifications.
PAGE 7
SED2 VFD NEMA Type 3R Bypass/ Air Conditioner Submittal Sheet Document No. 154-086 February 5, 2009 Table 4. Order Worksheet. Item Qty. Designation Part Number Description Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as design improvements are introduced. Product or company names mentioned herein may be the trademarks of their respective owners. © 2009 Siemens Industry, Inc. Siemens Industry, Inc.