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Terra Universal Product Manual 

 

WhisperFlow® Fan Filter Units  

© 

Copyright 2021 Terra Universal Inc. All rights reserved 

• 

Revised April 2021 

 

 

Terra Universal, Inc.  •  TerraUniversal.com  •  800 S. Raymond Ave.  •  Fullerton, CA  92831  •  TEL: (714) 578-6000  •  FAX: (714) 578-6020 

5

 

 

2.

 

Safety  

 

 

 

To reduce the risk of fire, electric shock, or injury to persons, observe the following:

 

 

 

Do not use this unit for anything other than the intended manner of the manufacturer. Contact the manufacturer for 
additional clarification.  

 

Before  servicing  the  unit,  or  replacing  a  filter,  switch  power  to  OFF  at  the  service  panel  and  lock  it  to  prevent 
accidental power activation. When the panel

 

cannot be locked, securely fasten a prominent warning device, such as a 

tag, to the service panel. 

 

When  the  removal/disconnection  of  either  filter  is  required  due  to  service  or  component  replacement,  the 

replacements are to be remounted as previously installed. 

 

Qualified  person(s)  must  install  the  unit  and  configure  the  electrical  wiring  adhering  to  all  applicable  codes  and 

standards, which includes fire-rated construction. All metal components must be properly grounded.  

 

Do  not  damage  or  interfere  with  electrical  wiring  and  other  hidden  utilities  when  cutting  or  drilling  into  the  wall  or 

ceiling.  

 

Check the ECM unit’s supply cord for damage, if it is damaged it must be replaced by the manufacturer, its service 

agent, or similarly qualified persons to avoid a hazard.  

 

 

Critical Operation Conditions 

 

 

The filter media is extremely sensitive and can damage easily. The screen only protects against an accidental ‘touch’ 

of the filter media. Avoid touching and damaging the HEPA filter because the warranty will void. 

 

 

 Never place anything on the filter. Always place filter on its side to avoid damage.

 

  
  

 

Proprietary Notice

 

Safety Notice

 

This manual pertains to proprietary devices manufactured by 
Terra Universal, Inc. Neither this document nor any portion of 
it may be reproduced in any way without prior written 
permission from Terra Universal.

 

A thorough familiarity with all operating guidelines is essential to safe operation of 
the product.  Failure to observe safety precautions could result in poor 
performance, damage to the system or other property, or serious bodily injury or 
death. The following symbols are intended to call your attention to two levels of 
hazard involved in operation.

 

 

 

Terra Universal makes no warranties applying to information 
contained  in  this  manual  or  its  suitability  for  any  implied  or 
inferred purpose.  Terra Universal shall not be held liable for 
any  errors  this  manual  contains  or  for  any  damages  that 
result from its use. 

 

 

CAUTION

 

Cautions are used when failure to observe instructions could result in 
significant damage to equipment.

 

 

 

 

WARNING

 

Warnings are used when failure to observe instructions or precautions 
could result in injury or death.

 

The information presented here is subject to change without notice.

 

CAUTION 

Summary of Contents for WhisperFlow 6601-1624-H

Page 1: ...Document No 1788 49 WhisperFlow Fan Filter Units Copyright 2021 Terra Universal Inc All rights reserved Revised April 2021 Terra Universal Inc TerraUniversal com 800 S Raymond Ave Fullerton CA 92831 TEL 714 578 6000 FAX 714 578 6020 ...

Page 2: ...ilter Units 7 3 3 Reverse Air Flow Room Side WhisperFlow Fan Filter Units 9 3 4 Smart WhisperFlow with EC Motor 11 3 4 1 120V and 220V Configurations 12 3 4 1 1 120V Configuration default 12 3 4 1 2 220V Configuration 12 3 5 EC Motor Control Card 14 3 5 1 Control Modes 15 3 5 2 Test Probe Terminals 16 3 5 3 Control Card Electrical Specifications 17 4 Cleaning 18 4 1 Room Side Filter Replacement BI...

Page 3: ... TerraUniversal com 800 S Raymond Ave Fullerton CA 92831 TEL 714 578 6000 FAX 714 578 6020 3 1 General Information This manual documents the operational guidelines for Terra Universal s Standard WhisperFlow Smart WhisperFlow EC Electronically Commutated Motor Narrow WhisperFlow WhisperFlow Reverse Flow and Smart WhisperFlow Reverse Flow fan filter units ...

Page 4: ... 6601 23A HR 220 6601 23 HSS 6601 23B HR EC 6601 23 UVSS 6601 23A HR 6601 23 H2 6601 23A USS EC 6601 23 UVFSS 6601 22A UR 220 6601 23 H CA 6601 23A U EC 6601 23 UV 220 CE 6601 22A UR 6601 23 H 220 6601 23A HSS EC 6601 23 UV 6601 22A HRSS 220 6601 23 H 6601 23A HRSS EC 6601 23 HVF 220 6601 22A HRSS 6601 22 U 220 CE 6601 23A H EC CA 6601 23 HVF 6601 22A HR 220 6601 22 U 220 6601 23A H EC 6601 23 HV ...

Page 5: ...s service agent or similarly qualified persons to avoid a hazard Critical Operation Conditions The filter media is extremely sensitive and can damage easily The screen only protects against an accidental touch of the filter media Avoid touching and damaging the HEPA filter because the warranty will void Never place anything on the filter Always place filter on its side to avoid damage Proprietary ...

Page 6: ...sembly 6 Lift the unit into the ceiling and position onto the ceiling grid If the grid is not secured fasten to an engineered support system with chain s hooks and eyehooks usually supported with wires 7 Confirm fan dimensions are aligned with grid dimensions 8 Raise the unit and secure with support system method suspended from a structural support bracing a Minimum clearance of 1 foot including f...

Page 7: ... filter 20 x 20 x 1 The unit uses standard UL 900 filters and is tested to IEST recommended standards Room side replaceable filter models feature fire retardant phosphorous free polyurethane gel sealant to seat against a knife edge on the fan housing and easy open clips for fast filter replacement from the room side without breaching the cleanroom ceiling The low profile design is ideal for cleanr...

Page 8: ... 320 235 200 2 x 2 HEPA RSR 1 4 208 230 240 1 6 1 8 50 60 230 190 180 Notes Performance tested in accordance with the ANSI AMCA 210 07 ANSI ASHRAE 51 07 test standards for CertifiedAerodynamic Performance Rating Sound levels were measured with unit installed in a gasketed ceiling in a standard room Sound levels in dB were measured at a distance of 12 inches from the filter face with the unit set t...

Page 9: ...nrooms This connector may be used with an optional wall plug adapter or may be removed entirely to hard wire the FFU The optional duct collar attachment allows connection to ducting system for safe exhaust outside of room The unit consists of a HP thermally protected variable speed motor that provides precise fully adjustable airflow and drives a backward curved centrifugal blower The dust collect...

Page 10: ...ound dB 90FPM AIR FLOW CFM Max Speed 2 x 2 HEPA RSR 60 387 CFM 2 x 4 HEPA RSR 60 353 CFM REVERSE AIR FLOW WHISPERFLOW ELECTRICAL DATA Nominal Unit Size ft Filter Motor HP Voltage Full Load Amps Frequency Hz Power Consumption Watts 2 x 2 HEPA 115V 1 35 60 160 2 x 2 HEPA 230V 0 66 50 60 125 170 2 x 4 HEPA 115V 1 35 60 160 2 x 4 HEPA 230V 0 66 50 60 125 170 PRODUCT DIMENSIONS Nominal Unit Size ft Act...

Page 11: ...peed adjustment test probe jacks CAT5e ports control mode switch and MODBUS address DIP switch bank The EC motor offers high performance low energy consumption and low noise levels 40 dB with forward curved centrifugal fans These units comply with Title 24 and ErP 2015 Directive The EC motor Control Card can be equipped with a 3 8 diameter challenge port which can be used to take differential pres...

Page 12: ...AX 714 578 6020 12 3 4 1 120V and 220V Configurations 3 4 1 1 120V Configuration default 120V Configuration 1 Black and Red wires are connected to the lower terminal 2 Yellow Jumper Cable is installed 3 4 1 2 220V Configuration 220V Configuration 1 Black and Red wires connect to the upper terminal as shown 2 Yellow Jumper Cable is removed Figure 4 Backside view of 120V Configuration Figure 5 Backs...

Page 13: ...ow Fan Filter Units Copyright 2021 Terra Universal Inc All rights reserved Revised April 2021 Terra Universal Inc TerraUniversal com 800 S Raymond Ave Fullerton CA 92831 TEL 714 578 6000 FAX 714 578 6020 13 Figure 6 Motor Cable Configurations ...

Page 14: ... The EC motor control card is a variable speed controller designed for brushless DC BLDC electrically commutated EC motors The control card features industry standard MODBUS networking precision speed control 1 100 and closed loop control capability The EC Motor Control panel provides access to LED diagnostics manual speed adjustment test probe jacks CAT5e ports the Control Mode DIP Switch and the...

Page 15: ... Maximum 5000 RPM measured Minimum 60 RPM measured Industry Standard MODBUS Networking RTU Protocol RS485 9600 8 n 1 3 5 1 Control Modes The EC Motor Control Card offers three different control modes for operating the FFU MODBUS RTU networking 0 10 VDC analog control or manual control through an onboard potentiometer Manual Control Mode The onboard potentiometer can be manually adjusted at the EC ...

Page 16: ...des To measure RPM set the Address DIP Switches at a value greater than 1 The test probe jacks will output 0 2000 mVDC to represent motor RPM Example 500 mVDC 500 RPM To measure demand signal change the Address DIP Switches to the value of 0 Note Changing the address will not interrupt power to the Control Card Network Control Mode In the MODBUS network control mode the test probe terminals will a...

Page 17: ... load Stand Alone Operation Power Source Ratings Supply Transformer Voltage Rating 12 24V AC Supply Transformer Power Rating 2 VA Regulated DC Supply Voltage Rating 14 30V DC Regulated DC Supply Power Rating 2 W Extended Accessory Output Currents for Stated Input Voltage Condition Input Voltage Accessory Current DC mA2 Suggested AC DC Source Power Rating 5V 10V V RFU VA 14V DC Regulated 300 300 50...

Page 18: ...atible WARNING For applications involving risk of exposure to harmful particulates or pathogens in the filter media use appropriate PPE and reference your facility s protocol for safe removal and disposal of filters The Room Side Replaceable RSR FFU is designed so that the HEPA or ULPA filter can be replaced from inside the cleanroom without breaching the controlled environment The filter assembly...

Page 19: ... filter from damage See Figure 11 3 Place the polypropylene panel over the filter screen making sure that it only adheres to the screen without overlapping the edges See Figure 12 4 Push one side of the FFU up See Figure 13 rotate it 90 See Figures 15 and 16 and lower through the ceiling grid 5 Place the unit on a flat work surface and remove the 10 sheet metal screws that hold the HEPA ULPA filte...

Page 20: ...ts reserved Revised April 2021 Terra Universal Inc TerraUniversal com 800 S Raymond Ave Fullerton CA 92831 TEL 714 578 6000 FAX 714 578 6020 20 Figure 17 Diagram of FFU assembly Figure 15 Personnel rotating FFU to remove from ceiling grid Figure 16 FFU rotated 90 and lowered completely from ceiling grid ...

Page 21: ... Filter Units Copyright 2021 Terra Universal Inc All rights reserved Revised April 2021 Terra Universal Inc TerraUniversal com 800 S Raymond Ave Fullerton CA 92831 TEL 714 578 6000 FAX 714 578 6020 21 5 Wiring Diagrams Smart WhisperFlow WhisperFlow ...

Page 22: ...t Manual WhisperFlow Fan Filter Units Copyright 2021 Terra Universal Inc All rights reserved Revised April 2021 Terra Universal Inc TerraUniversal com 800 S Raymond Ave Fullerton CA 92831 TEL 714 578 6000 FAX 714 578 6020 22 ...

Page 23: ...raw excess current from the PDM which can lead to thermal overload on the motor motor failure and or electrical hazards NOTES 1 Setting all FFU s with PSC motors to LOW does not cause an immediate problem However it is not advised as there is a risk of accidently adjusting one FFU s speed setting to HIGH or MEDIUM which could lead to thermal overload on a FFU motor that is still on LOW speed 2 Nig...

Page 24: ...L 900 recognized If your filters have special requirements please see original engineering specifications for your specific project 8 Troubleshooting Low Air Velocity 1 Check the prefilter clean or replace if dirty 2 Adjust the fan speed to a higher output 3 Verify the power output for voltage amperage and distribution frequency 4 Replace HEPA ULPA filter if air velocity does not change High Air V...

Page 25: ...______________________________________________________________ Serial Number _____________________________________________________________________________________ Unit Model Number__________________________________________________________________________________ Date _____________________________________________________________________________________________ Room side Replaceable Filters Nominal ...

Page 26: ...rd Adapter 6601 13 Filter Replacement Alarm 2625 54B SS Power Distribution Modules PDM s PDM Type Voltage Part Number Primary 120 V 6600 29B T Secondary 240 V 6600 29B S 220 Secondary 120 V 6600 29B S Primary 240 V 6600 29B P 220 Primary 120 V 6600 29B P Booster 240 V 6600 29B B 220 Booster 120 V 6600 29B B Wireless Control Primary 240 V 6600 29A WL P 220 Wireless Control Primary 120 V 6600 29A WL...

Page 27: ...sses when the shipment is loaded so customer is responsible for filing and collecting a freight claim Any replacement products must be ordered and paid for separately For Terra s Policy and Procedures for Returning Goods see Terra s Internet site www TerraUniversal com Generally customers can improve the chance of collecting on a freight claim by following these procedures 1 formally requesting th...

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