FAN POWERED HEPA FILTER UNIT

Transcription

1 READ COMPLETELY AND SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE FAN POWERED HEPA FILTER UNIT (MOTOR ACCESSIBLE) SSLFHFD-FP-MA INSTALLATION AND SERVICE MANUAL

2 2 Critical operation conditions of the Fan Powered HEPA Filter Unit DO NOT TOUCH the HEPA filter media. Damage to filter media may void the filter warranty. The screen is to protect against accidental touching of the filter. Never place objects on the filter. Always transport or lift the filter by its frame. Prior to powering the unit, verify that it is wired to a VAC power supply. The rating plate label located on the electrical box cover shows the electrical data. For replacement parts refer to the model number and serial number on the rating plate label located on the electrical box. Replacement Part numbers FPH-RP11 FPH-RP12 FPH-RP21 FPH-RP31 FPH-RP34 FPH-RP35 FPH-RP36 FPH 48 x 24 HEPA filter FPH 16 x 16 x ½ expanded aluminum pre-filter FPH Programmable variable speed motor FPH Control circuit board FPH Fan verification kit FPH LED filter indicator Kit FPH 120/24VAC transformer

3 3 READ COMPLETELY AND SAVE THESE INSTRUCTIONS WARNING! TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS OBSERVE THE FOLLOWING: Installation work and electrical wiring must be completed by qualified persons in accordance with all applicable codes and standards, to include fire-rated constructions. When cutting or drilling into walls and ceilings, be careful not to damage electrical wiring and other hidden utilities. If this unit is to be installed within close proximity to water, mark the unit as according to applicable codes and standards. This unit is to be used only as intended by the manufacturer. If you have any questions regarding the use, installation, or operation of this unit, contact the manufacturer: AJ Manufacturing Co., Inc. PO Box East 18 th Street Kansas City, MO Tel: Before servicing or cleaning unit, disconnect and lockout power at the service panel to avoid accidental electric shock and injury. WARNING TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, OBSERVE THE FOLLOWING: a) Use this unit only in a manner intended by the manufacturer. If you have questions, contact the manufacturer. b) Before servicing or cleaning unit, switch power off at service panel and lock the service disconnecting means to prevent power from being switched on accidentally. When the service disconnecting means cannot be locked, securely fasten a prominent warning device, such as a tag, to the service panel.

4 4 TABLE OF CONTENTS 1 INSTALLATION. 5 2 CLEANING THE FPH PRE-FILTER REMOVAL AND REPLACEMENT OF THE GEL SEAL HEPA FILTER 7 4 REMOVAL AND INSTALLATION OF THE MOTOR. 9 5 ON/OFF SWITCH AIRFLOW ADJUSTMENT TESTING 12 7 TROUBLE SHOOTING FPH WIRING DIAGRAMS WARRANTY... 15

5 5 INSTALLATION The Fan Powered HEPA unit is fully assembled from the factory with the exception of the HEPA filter which is shipped separately. Step 1 -- Step 2 -- Step 3 -- Step 4 -- Step 5 -- Carefully remove the unit from the shipping carton and inspect for damage that may have occurred during shipping. If shipping damage is found, do not install. Call the manufacturer to report damage. Wipe down unit to remove shipping dust and debris. Raise unit into ceiling and lower onto gasketed opening. Gasket should be a closed-cell material approved for the environmental conditions. It is recommended to further support the unit from above using the tabs welded to the plenum. A qualified technician should wire the unit to a VAC power supply per applicable codes and standards. Refer to the wiring diagram (Figure 4) on page 15 of these instructions. Install the HEPA filter per the Removal and Replacement of the HEPA Filter with Gel Seal section on page 7.

6 6 Cleaning the Fan Powered HEPA Unit Prefilter WARNING! Disconnect the unit from the electrical power source before attempting to service the unit. Tools required: Phillips screw driver Note: For maximum performance, wash prefilter every three to six months at minimum. Step 1 -- Step 2 -- Step 3 -- Step 4 -- Step 5 -- Turn the unit off with the rocker switch located on the unit. Disconnect the unit at the power source or at the service panel. Using a Philips head screw driver, remove the four (4) screws holding the electrical box cover. This allows access to the prefilter. Slide the prefilter out of the motor enclosure. Wash the filter with hot water and a mild detergent and rinse thoroughly. Do not use a caustic solution to clean the filter. Blow dry or let air dry and slide the filter back into the motor enclosure. Filter should be completely dry before reinstalling into unit. Using the Philips head screwdriver, reassemble electrical box cover to unit with four (4) screws.

7 7 Removal and Replacement of the HEPA Filter with Gel Seal WARNING! Disconnect the unit from the electrical power source before attempting to service the unit. WARNING! The HEPA filter may be protected by an expanded metal screen. This is to prevent accidental touching of the filter media. It is not meant to allow handling of the filter in these areas. Handle the filter ONLY by the frame. Tools required: Flat screw driver; 7/16 nut driver NOTE: The manufacturer recommends two people to remove and install the HEPA filter in the unit. Step 1 -- Step 2 -- Step 3 -- Step 4 -- Step 5 -- Step 6 -- Step 7 -- Step 8 -- Step 9 -- Turn the unit off with the rocker switch located on the unit. Disconnect the unit at the power source or at the service panel. Using a flat screw driver, release the face frame by rotating the four (4) fasteners a quarter-turn counter clock-wise. Unhook the safety cables from the filter clips. Set the frame aside. Using a 7/16 nut-driver, evenly loosen the nuts holding the filter retaining clips by working your way around the unit loosening the nuts a little at a time. To make installing the new filter easier, loosen the nuts until flush with the end of the threaded stud. USE TWO PEOPLE TO SUPPORT THE FILTER and rotate the filter clips toward the offset hole until clip is clear of the filter. Allow gravity to pull the filter away from the unit. If installing a new filter discard the filter in an appropriate manor. Unpack the new filter and inspect for shipping damage. If damage is found do not install in unit; call the manufacturer for replacement arrangements. Using two people, raise the filter into place assuring the seal edge is approximately in the center of the gel channel. The threaded posts will help align the filter. While supporting the filter by its frame, rotate the filter clips so that the clips are supporting the frame and are at 90º to the frame. Evenly tighten the nuts by working your way around the unit tightening the nuts a little at a time. Stop tightening when the aluminum filter frame contacts the stainless steel housing frame. DO NOT OVER TIGHTEN. Wait at least 30 minutes before performing any challenge testing to allow the gel to fully adhere to the unit. Raise the face frame back into place, reattach the safety chains, and secure quarter-turn fasteners.

8 8 Step Inspect all gaskets and seals for integrity. Reconnect power and turn unit power on. Replacement of HEPA Filter with Gel Seal Figure 1

9 9 Removal and Installation of the Variable Speed Motor WARNING! Disconnect the unit from the electrical power source before attempting to service the unit. Tools required: flat screw driver; philip s head screw driver; 7/16 nut driver; drill with 1/8 drill bit; 5/32 hex head driver Step 1 -- Step 2 -- Step 3 -- Step 4 -- Step 5 -- Step 6 -- Step 6 -- Step 7 -- Step 9 -- Step Turn the unit off with the switch located on frame of the unit. Disconnect the unit at the power source or at the service panel. Remove the HEPA filter and set aside. See sections 2 and 3 for instructions. Remove the mid panel by removing the ten (10) screws with a Philips head screwdriver. Use a 5/32 hex driver to loosen set screw and slide fan off the motor shaft. Disconnect the 6-pin power cable and the 4-pin data cable from the motor. Using the 3/16 hex driver, remove the six bolts holding the motor assembly. Let the motor/fan/ring assembly down out of the unit. Mark the location of the motor mount ring on the motor housing. Use a nut driver or wrench to loosen the motor mount harness and slide off the motor. Reverse above steps to reassemble the motor/fan/ring assembly into the unit. Transfer mount location mark from old motor and replace the motor mount in the same location. Fan collar should be even with the end of the motor shaft.

10 10 Removal of Variable Speed Motor Figure 2

11 11 ON/OFF SWITCH AIRFLOW ADJUSTMENT The Motor Accessible Fan Powered HEPA Unit is equipped with a two position, illuminated rocker main power switch located inside the plenum. DIGITAL AIRFLOW CONTROL The FPM includes a Digital Airflow Control unit to adjust the airflow in the range of 250 CFM to 700 CFM. The adjustment is made by turning the recessed knob located to the lower left of the display. To increase the airflow, adjust the knob clockwise with a small flat screw driver. Turning it counter-clockwise lowers the desired airflow. The digital display alternates between the selected flow input (%) and the current airflow (CFM). TESTING Each Fan Powered HEPA unit is thoroughly tested at the factory before shipment. However, many codes and standards require testing for by-pass leakage after installation. AJ Manufacturing encourages that the customer contact an independent, certified testing organization with technicians that are trained and experienced in performance evaluation and maintenance of clean air equipment. AJ Manufacturing recommends at least 30 minutes elapse after HEPA/ULPA filter installation before performing any type of challenge leak testing. The unit should be sealed to the ceiling and the room should have a positive pressure held during testing and normal operation.

12 12 TROUBLE SHOOTING Low Airflow If optional HEPA red LED light is on, replace the HEPA filter. Inspect the prefilter. Clean or replace as necessary. Adjust the digital speed control for higher blower output. Check the power supply for proper voltage, amperage, and distribution frequency Replace HEPA filter if airflow remains low. High Airflow Adjust digital speed control for lower output. Non-Laminar Airflow and/or Excessive Contamination Insure that upstream airstream is clear of large obstructions. Ensure that no other air moving devices are operating in such a way to disrupt the room s airflow pattern. Check airflow and if not desired airflow see above. Conduct smoke or photometer test on HEPA filter and gel seal. If fail seal or replace the HEPA filter as necessary.

13 13 Figure 4

14 14 WARRANTY LIMITED WARRANTY Unless otherwise expressly stated elsewhere in AJ Manufacturing s published literature, AJ Manufacturing warrants that the Fan Powered HEPA units are free from defects in material and workmanship, except for services which are warranted to be performed in a competent and diligent manner in accordance with any mutually agreed specifications. The foregoing warranty shall apply for twelve (12) months from the date of shipment from the AJ Manufacturing facility. Provided the Buyer informs AJ Manufacturing in writing of any breach of warranty prior to the expiration of the applicable warranty period, AJ Manufacturing shall, as its sole obligation and the Buyer s sole and exclusive remedy for any breach of this warranty, repair or replace/reperform the unit which gave rise to the breach or, at AJ Manufacturing s option, refund the amounts paid by the Buyer for the unit which gave rise to the breach. Any repair, replacement or reperformance by AJ Manufacturing hereunder shall not extend the applicable Warranty Period. The parties shall mutually agree on the specifications of any test to determine the presence of a defect. Unless otherwise agreed upon by AJ Manufacturing in writing, the Buyer shall bear the costs of access, deinstallation, re-installation, and transportation of the unit to the AJ Manufacturing facility and back to the Buyer s designated location. These warranties and remedies are conditioned upon (a) the proper storage, installation, operation, and maintenance of the unit and conformance with the proper operation instruction manuals provided by AJ Manufacturing or its suppliers and subcontractors, (b) the Buyer keeping proper records of operation and maintenance during the applicable Warranty Period and providing AJ Manufacturing with access to these records, and (c) modification of repair of the units only as authorized by AJ Manufacturing. AJ Manufacturing does not warrant the unit or any repaired or replacement parts against normal wear and tear or damage caused by misuse, accident, or use against the instructions of AJ Manufacturing. Any modification or repair of the unit not authorized by AJ Manufacturing shall render the warranty null and void. EXCEPT AS EXPRESSLY SET FORTH HEREIN, AJ MANUFACTURING MAKES NO OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, NO-INFRINGEMENT OR FITNESS FOR A PARTICULAR PURPOSE WHICH ARE HEREBY DISCLAIMED TO THE EXTENT PERMITTED BY APPLICABLE LAW.