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Installation, Operation, & Maintenance for CRFF-E Series 

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Krueger | 1401 N Plano Rd | Richardson, TX 75081 | 972.680.9136 | [email protected] | www.krueger-hvac.com

Table of Contents

Installation

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Unit Control 

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Universal Control Card Set Up

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Troubleshooting

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Infrared Speed Controller

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Pre-filter Cleaning (foam)

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Service: Removal and Replacement of CRFF-E filters

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Service: Removal and Replacement of Roomside Replaceable Filters

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Service: CRFF-E & CRFF-E-ARS Motor Removal and Installation

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Service: CRFF-E-ARSM Motor Removal and Installation

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Technical Note: TN1004 Changing Motors in the Field

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Unit Wiring Diagrams

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Drawing - CRFF-E Filter

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Critical Operations of the Fan Filter Unit

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Warnings

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Technical Note: TN1002 Design with VAV Boxes

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Unit Replacement Parts List

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Drawing - CRFF-E-ARS & CRFF-E-ARSM Filter

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Testing

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Содержание CRFF-E

Страница 1: ...INSTALLATION OPERATION MAINTENANCE Fan Filter Units CRFF E CRFF E ARS CRFF E ARSM ECM Motors Revision 02 01 17...

Страница 2: ...m 13 Service Removal and Replacement of CRFF E filters 14 Service Removal and Replacement of Roomside Replaceable Filters 15 Service CRFF E CRFF E ARS Motor Removal and Installation 16 Service CRFF E...

Страница 3: ...on is located on the product and serial number labels located adjacent to the electrical box If you cannot locate the FO please contact Krueger for this information Read and Save These Instructions To...

Страница 4: ...onto the gasketed grid If using a flexible grid typically supported with wires the unit must be secured to an overhead structure with eyebolts s hooks and chain Screw the four eyebolts into the nutser...

Страница 5: ...ed between 0 50 in wc and 3 00 in wc by turning the set screw accessible for the front of the control enclosure Counterclockwise rotation will increase the set point differential for switching clockwi...

Страница 6: ...Consoles using MODBUS RTU Additional details of the controls modes are provided on page 7 FEATURES Networkable Via MODBUS RTU 0 10 VDC Analog Control Manual Control Via Onboard Potentiometer Simple C...

Страница 7: ...band S2 A maximum of 200 ENV1028 devices is recommended per local area network LAN NetworkkControl Mode cont If a Krueger ACC Control Console is the MODBUS master then addresses should be assigned wi...

Страница 8: ...fo krueger hvac com www krueger hvac com Control Modes continued Example of binary S2 switch settings 5 6 1 2 3 4 8 7 ON DIP 1 1 2 3 4 5 6 7 8 ON DIP 11 1 2 4 3 5 6 8 7 ON DIP 21 3 1 2 4 5 6 7 8 ON DI...

Страница 9: ...S Test Probe Jack Points The test probe jacks may be used to measure the motor rpm or the PWM signal that is being output to the motor In Manual or Analog Control Mode with an Address setting of 1 or...

Страница 10: ...eset non volatile registers to factory default values write 170 AA hex to Register 14 then cycle power Note Register 24 may be read in network mode to determine the value of 0 10VDC signal that may be...

Страница 11: ...e Contamination Warranty Please reference the Krueger website for Warranty information located in the Terms and Conditions of Sales document or click on the following link http www krueger hvac com pd...

Страница 12: ...lashes 3 longs then an extra lon A flow index of 04 flashes an extra long then 4 shor A flow index of 100 flashes 10 longs then an extra lon Use the ON OFF button to turn the motor on or off Point the...

Страница 13: ...lte remove the ceiling panel next to the unit if applicable Switch the ON OFF switch to the OFF position Remove the prefilter from the snap in frame See Figure 1 Clean the prefilter by hand washing in...

Страница 14: ...ly off the HEPA ULPA filter See Figure 1 Remove filter deflectors using 5 32 drill bit Keep filter deflectors to install in new filter Discard the used filter as per requirements of the applicable reg...

Страница 15: ...ll the filter slowly away from the seal so that the gel remains in the filter gel track 3 Carefully clean plenum assembly knife edge surface of residual gel material 4 Inspect filter for visible damag...

Страница 16: ...ter 6 Disconnect 5 pin and 16 pin wire harnesses from the electrical box housing and remove tubing for test port if installed 7 Remove the eight mounting screws to free the motor blower assembly from...

Страница 17: ...ews that secure the venturi ring to the bottom face of the lid 4 Using a 5 32 0 40 cm Allen wrench remove the blower wheel from the motor shaft Remove motor from the venturi ring by removing the three...

Страница 18: ...dec PerfectSpeed When you order a replacement motor they will be a form and fit replacement except for the cable that connects to the control board and the motor The new Nidec motor will require you t...

Страница 19: ...the potential to starve or over feed the fan with air causing the motor to stall which can damage the fan motor This also can be minimized by notifying Titus beforehand for assistance The ECM motors...

Страница 20: ...age 20 of 26 Krueger 1401 N Plano Rd Richardson TX 75081 972 680 9136 kruegerinfo krueger hvac com www krueger hvac com Universal Card Wiring Diagram 4 pin Control Cable 5 pin Power Cable 4 Pin MTA Mo...

Страница 21: ...com Wiring Diagrams continued Universal Card Wiring Diagram w Continous Filter Monitoring 4 pin Control Cable 5 pin Power Cable 4 Pin MTA Motor Connector Remote Run Indicator LED Note Register 24 may...

Страница 22: ...nance for CRFF E Series Page 22 of 26 Krueger 1401 N Plano Rd Richardson TX 75081 972 680 9136 kruegerinfo krueger hvac com www krueger hvac com Wiring Diagrams continued Infrared Speed Control Remote...

Страница 23: ...64 N A Universal Control Card CRFF E CRFF E ARS CRFF E ARSM 265888 N A Visual Speed Control Card CRFF E CRFF E ARS CRFF E ARSM 63951 002 N A IR Sensor Harness 63759 001 N A IR Sensor without Harness 6...

Страница 24: ...Installation Operation Maintenance for CRFF E Series Page 24 of 26 Krueger 1401 N Plano Rd Richardson TX 75081 972 680 9136 kruegerinfo krueger hvac com www krueger hvac com CRFF E Filter Drawing...

Страница 25: ...tion Operation Maintenance for CRFF E Series Page 25 of 26 Krueger 1401 N Plano Rd Richardson TX 75081 972 680 9136 kruegerinfo krueger hvac com www krueger hvac com CRFF E ARS and CRFF E ARSM Filter...

Страница 26: ...specified performance along with air velocity measurement and adjustment tests No DOP is used on CRFF E series filters unless requested Recommended Testing All units that are airflow tested at Krueger...

Страница 27: ......

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