Envirco MAC 10 e3 Manual
02/05/03
*** READ AND SAVE THESE INSTRUCTIONS ***
MAC 10âe3FAN FILTER MODULE
INSTALLATION AND SERVICE MANUAL
STANDARD and RSR MODELS
Mac 10âis a registered Trademark of the
Envirco Corporation, Albuquerque, New Mexico, U.S.A.
US Patent 4,560,395 Other patents issued and pending in foreign countries
MAC 10 e3SERVICE MANUAL
PAGE 1 02/05/03
READ AND SAVE THESE INSTRUCTIONS
WARNING !
TO REDUCE THE RISK OF FIRE, ELECTRICAL SHOCK, OR INJURY TO PERSONS, OBSERVE THE
FOLLOWING :
A. Installation work and electrical wiring must be done by qualified person(s) in accordance with all applicable codes
and standards, including fire-rated construction.
B. When cutting or drilling into wall or ceiling, do not damage electrical wiring and other hidden utilities.
C. If this unit is to be installed over a tub or shower, it must be marked as appropriate for the application.
D. Use this unit only in the manner intended by the manufacturer. If you have any questions, contact the manufacturer :
ENVIRCO CORPORATION
5601 Balloon Fiesta Parkway NE
Albuquerque, New Mexico 87113, U.S.A.
Tel : (800) 545-6598
Fax : (505) 345-8875
ENVIRCO CORPORATION
Eastern Regional Office
1185 Mt. Aetna Rd.
Hagerstown, Maryland 21740, U.S.A.
Tel : (800) 645-1610
Fax : (301) 714-4784
E. Before servicing or cleaning unit, switch power off at service panel and lock service panel to prevent power from
being switched on accidentally.
MAC 10 e3SERVICE MANUAL
PAGE 2 02/05/03
Table of Contents
Title Page
I. INSTALLATION 3
II. SERVICE : CLEANING THE MAC 10 e3PREFILTER 4
III. SERVICE : REMOVAL AND REPLACEMENT OF THE HEPA FILTER5
IV. SERVICE : REMOVAL AND REPLACEMENT OF THE ROOM SIDE
REPLACEABLE FILTER (RSR) 6
V. SERVICE : REMOVAL AND INSTALLATION OF THE MOTOR 7
VI. SERVICE : REMOVAL AND INSTALLATION OF THE OPTIONAL
FLUORESCENT TUBES 9
VII. ON/OFF SWITCH-SPEED/AIRFLOW ADJUSTMENTS 10
VIII. TROUBLE SHOOTING 12
IX. MAC 10 e3WIRING DIAGRAMS 13
X. MAC 10 e3REPLACEMENT PARTS LIST 15
XI. WARRANTY 16
XII. TESTING 17
MAC 10 e3SERVICE MANUAL
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I. INSTALLATION
Note : The MAC 10 e3Filter Unit is completely assembled at the factory with the exception of the optional
¼”(0.64 cm)-20 eyebolts, which can be used when hanging the unit from an overhead structure.
Step 1. Carefully remove the unit from the shipping carton and inspect for any damage that may have occurred during
transportation.(see Figure 1)
Step 2. Wipe down plastic bag and move unit into clean room.
Step 3. If using rigidly supported grid (usually 2” or wider), raise unit through ceiling and lower 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. A roll of high density gasket has been provided for use with ungasketed grids.
Step 4. Have an electrician wire the unit to the appropriate voltage (115V, 220V, 277V AC), according to the wiring
diagram in section IX and local electric codes. To install permanent power, remove the two screws that hold
the 2x4 j-box cover in place. Secure the electrical cable to the j- box. Connect L1 (black conductor) to the
black lead located in the j-box. Connect L2 (white conductor) to the common. Connect the ground (green
conductor) to the ground screw provided in the j-box, use an uninsulated lug for the connection. When the
permanent connection has been made, replace the j-box cover and reinstall the two screws. If optional power
cord was purchased, plug unit into a grounded receptacle.
Figure 1
MAC 10 e3SERVICE MANUAL
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II. SERVICE : Changing the MAC 10 e3Prefilter
WARNING !
Disconnect the unit from the electrical power source before attempting any service.
Note : To keep the filter in top operating condition, replacing the pleated prefilter is
recommended every six months.
Step 1. To gain access to the prefilter, remove the ceiling panel next to the unit, if applicable.
Step 2. Lift and remove the prefilter off the prefilter frame.(see Figure 2)
Step 3. Reassemble by reversing the above steps.
Figure 2
MAC 10 e3SERVICE MANUAL
PAGE 5 02/05/03
III. SERVICE : Removal and Replacement of the HEPA/ULPA Filter (Standard Unit)
WARNING !
Disconnect the unit from the electrical power source before attempting any service.
Step 1. Remove unit from ceiling.
Step 2. Remove the screws holding the HEPA/ULPA filter to the lid assembly.
Step 3. Lift the lid assembly off the HEPA/ULPA filter (see Figure 3). Discard the used filter as per requirements of the
applicable regulations.
Note : Before replacing with a new HEPA/ULPA filter, carefully inspect the new filter for any visible damage. Also
inspect the gasket in the “tee” bar to insure a tight seal. Replace as necessary.
Step 4. Replace with the new HEPA/ULPA filter and assemble by reversing the above steps.
Figure 3
MAC 10 e3SERVICE MANUAL
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IV. SERVICE : Removal and Installation of the Room Side Replaceable Filter
WARNING !
Disconnect the unit from the electrical power source before attempting any service.
Step 1. Remove the diffuser screen by shifting it to one side and lowering it out of the housing.
Step 2. While supporting the filter, remove the six screws and clips and lower the filter.(see Figure 4)
Note : Before replacing with a new filter, carefully inspect the new filter for any visible damage.
Step 3. Replace with the new HEPA filter and assemble by reversing the above steps.
Note : Tighten filter clip bolts as necessary to insure no bypass leakage. DO NOT over tighten.
Figure 4
MAC 10 e3SERVICE MANUAL
PAGE 7 02/05/03
V. SERVICE : Removal and Installation of the Motor
WARNING !
Disconnect the unit from the electrical power source before attempting any service.
WARNING !
Electrical service should be performed by licensed electricians or authorized ENVIRCO service technicians.
Step 1. To gain access to the motor/blower, remove the ceiling panel next to the unit, if applicable.
Step 2. Remove the prefilter off the prefilter frame.(see Figure 5)
Step 3. Remove the four screws from the electrical cover and tilt the electrical cover open..
Figure 5
MAC 10 e3SERVICE MANUAL
PAGE 8 02/05/03
Step 4. Make note of all wire locations for reinstallation later.
Step 5. Disconnect the brown, black and white wires from the capacitor.
Step 6. Disconnect the motor wiring from the speed control and the green/ yellow ground wire from the ground screw.
Step 7. Remove the six screws to free the motor/blower assembly from the lid assembly.(see Figure 6)
Step 8. Using a 10mm socket remove the four M6 bolts which hold the bottom motor plate from the standoffs. Again
using a 10mm socket remove the four M6 bolts from the motor.
Step 9. Replace with the new motor/blower and reassemble by reversing the above steps. Set the spacing between the
venturi ring and the blower wheel at 0.06”(0.15 cm) clearance. When reinstalling the M6 bolts through the
grommets into the bottom of the motor tighten the bolts using the lowest torque setting. Visually inspect the
blower wheel to assure the wheel is parallel to the bottom motor plate. Adjust the motor bolts to even the
wheel if necessary.
Figure 6
MAC 10 e3SERVICE MANUAL
PAGE 9 02/05/03
VI. SERVICE : Removal and Installation of the Optional Fluorescent Lamps
WARNING !
Disconnect the unit from the electrical power source before attempting any service.
Note : Accessibility to the fluorescent tubes is gained from the room side.
Step 1. To remove the fluorescent tubes, pull down on the two clips and swing down the light diffuser.
Step 2. Carefully remove the fluorescent tubes out of the fixture.(see Figure 7)
Step 3. To install the new fluorescent tubes, reverse the above steps.
Figure 7
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