Envirco MAC 10 LE-DC User Manual

OPERATION & MAINTENANCE MANUAL

Envirco Technical Support: 800-884-0002

MAC 10® LEDC

4x4 Fan Filter Unit

Standard, RSR, & RSRE Models

MAC 10® LEDC

4x4 Fan Filter Unit

Installation & Service Manual

Table of Contents

Critical Operations of the MAC 10® .................................................................................. 3

Part numbers .................................................................................................................... 3

Warnings .......................................................................................................................... 4

Installation ........................................................................................................................ 5

Unit Control Box ............................................................................................................... 6

Universal Control Card Set Up ......................................................................................... 7

Troubleshooting ............................................................................................................... 12

Service: Removal and Replacement of Standard Filters ................................................. 13

Service: Removal and Replacement of RSR/E Filters .................................................... 14

Service: Standard and RSR Motor Removal and Installation .......................................... 15

Service: RSRE Motor Removal and Installation .............................................................. 16

MAC 10® LEDC Wiring Diagram ...................................................................................... 17

MAC 10 LEDC Replacement Parts List ........................................................................... 18

Limited Warranty ............................................................................................................. 19

Testing ............................................................................................................................. 19

2 Innovators in Clean Air Technology | www.envirco.com | Operation & Maintenance

MAC 10® LEDC

4x4 Fan Filter Unit

Installation & Service Manual

■ Critical Operation Conditions of the MAC 10

1. Touching of the HEPA lter will damage it, voiding the warranty on the lter. The screen is only to protect against an
accidental ‘touch’ of the lter. Never place a hand or tool on the lter. Never lie lter face at down on a surface always
have lter on its side to protect from damage.

2. Prior to powering the unit, verify that the unit has been wired into the correct voltage. The serial number label on the top
of the Mac 10 unit has the required voltage.

3. To insure you order the proper replacement parts or complete MAC 10 unit, record the part number and serial number.
This information is located on the serial number label, located adjacent to the electrical box. If you can’t locate the Sales
Order Number, please contact Envirco for this information.

■ Part Numbers Covered by this Manual

11185-XXX MAC 10 LEDC 4x4 Standard Filter
11233-XXX MAC 10 LEDC 4x4 RSR Filter
11233-Z XXX MAC 10 LEDC 4x4 RSRE Filter

Note: A ‘Z’ in the part number indicates that the unit is special.
This may indicate a size change from standard or a special lter.
Please contact the factory for part numbers if this is the situation.

Units come set in manual mode from

the factory. Please review installation
requirements and set up with your end user

(See page 8 for complete set up instructions).

3Innovators in Clean Air Technology | www.envirco.com | Operation & Maintenance

MAC 10® LEDC

4x4 Fan Filter Unit

Installation & Service Manual

■ 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 qualied person(s) in accordance with all applicable codes and

standards, including re-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 an area using liquid, such as water or chemical cleaning solutions, 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.
E. Before servicing or cleaning the unit, switch power off at unit service panel and lock service panel to prevent power from

being switched on accidentally.

ENVIRCO USA

101 McNeill Road
Sanford, NC 27330
Tel: [phone]
Tel: [phone]
Fax: [phone]
Email: [email protected]

ASIAN SALES

Building #1
200 Middle Suhong Road
Suzhou, Jiangsu
PRC 215021
Tel: [phone]
Fax:[phone]

Europe, Middle East & Africa (EMEA)

TRION Div of Ruskin Air Management Ltd

European Operations
The Cavendish Center Winnall Close
Winchester Hampshire
S023 OLB, UK

www.envirco-emea.com

Tel: [phone]
Fax: [phone]

Email: [email protected]

4 Innovators in Clean Air Technology | www.envirco.com | Operation & Maintenance

MAC 10® LEDC

4x4 Fan Filter Unit

Installation & Service Manual

■ Installation

Note: The MAC 10 LEDC Fan Filter Unit is completely assembled at the factory with the exception of the optional ¼” (0.64

cm)-20 eyebolts that are used when hanging the unit from an engineered design support system and installation of the HEPA/

ULPA lters (eyebolts not included and need to be ordered separately, p/n 222449-001).

Step 1. Carefully remove the unit from the shipping carton and inspect for any damage that may have occurred during

transportation (See Figure 1). Using the two handles attached to the lid, two workers minimum, are required to lift the unit from

the box.

Note: When ordering RSR and RSRE

Recommendation:

Review mode settings

at this time as specied

for installation

(see page 7 for controls).

units, the HEPA lters will be shipped

separately to be installed into units
after the fan box has been installed.

Figure 1: Unboxing

Step 2. If using rigidly supported grid (usually 2” (50 mm) or wider), raise unit through ceiling and lower onto the gasketed grid.

If using a exible grid (typically supported with wires), the unit must be secured to an engineered design support system with

s-hooks and chain. Screw the four eyebolts into the nutserts on the lid assembly before lifting into an overhead position (see

Figure 2). Note: Conrm fan dimensions to match T-grid dimensions.

EYEBOLT

FAN FILTER
UNIT

Figure 2: Hanger Supports Figure 3: Front Load Option

Step 2.1. It is recommended that you front load your MAC 10 4x4 to your T-Grid system by running your main T-Grid and two

cross Ts (install fan box into grid), then running your main T again (see Figure 3).

Step 2.2. If using a support grid, continue...

Step 3. Raise the unit and secure it into place using the chosen support system method suspended from a structural support

bracing.

Step 4. Have an electrician wire the unit to the appropriate voltage, according to the wiring diagram (page 17), and all national

and local electrical codes. All units are equipped with a three position terminal block for eld connection. Verify correct single-

phase power, before energizing units.

Step 5. Turn on the power using the two position rocker switch (ON/OFF) located on the electrical box. For RSR/E units, let

the unit run for a few hours to purge off particulate that may be adhered to the inside of the unit before installing the lters. Do

not run fan at full speed as this may cause overload condition.

Note: Your fan lter has been shipped separately.

5Innovators in Clean Air Technology | www.envirco.com | Operation & Maintenance

MAC 10® LEDC

4x4 Fan Filter Unit

Installation & Service Manual

■ Unit Control Box

2.1. ON/OFF Switch - Speed/Airow Adjustment

All MAC 10 LEDC units are equipped with a two-position rocker switch (ON/OFF), which is located on the side of the electrical
box, on top of the unit. All units are furnished with a Universal Control Card to enable adjustment of airow or set to your means

of communication. (see Page 7 for Universal Card Card Set Up).

Manual

Speed

Potentiometer

CAT 5e

Network Cables

(RJ45 Connector)

Note: The CAT5e/RJ45 network ports are non-directional (i.e. in or out). Be sure to examine your cabling to insure
that there is no cross-over wired cables.

RPM

Test Probe

Jack Comm

Figure 3 : Electrical Box Face

ON/OFF

Switch

6 Innovators in Clean Air Technology | www.envirco.com | Operation & Maintenance

MAC 10® LEDC

INCOMING POWER 24VAC

EXTERNAL

4x4 Fan Filter Unit

Installation & Service Manual

■ Universal Control Card Set Up

UNIVERSAL CONTROL CARD - PRODUCT OVERVIEW

Envirco’s ENV1028 Universal Control Card provides MODBUS network and analog control capabilities to an Envirco Fan Filter Unit

equipped with an electrically commutated motor. Three different control modes provide installation versatility by allowing the FFU to

be controlled via MODBUS RTU network, analog 0-10 VDC control signal, or by adjusting the onboard potentiometer. The ENV1028

Universal Control Card is fully compatible with all of Envirco’s plug & play System Control Consoles using MODBUS RTU. Additional

details of the controls modes are provided on page 8.

FEATURES

• Networkable Via MODBUS RTU

• 0-10 VDC Analog Control

• Manual Control Via Onboard Potentiometer

• Simple Connections

• RJ45 For Networking Connection

• Screw Terminals For Analog Control

• Test Probe Jacks For DC mV Signal Output Of The Following...

• RPM

• Motor Control Set Point

• LED Diagnostics

• Support for external LED (10mA) remote status notication via 2 Pin MTA connector

• Onboard green LED for Board Status notication

• Onboard red LED for Network Trafc

• Powered from Network or Local Supply

COMMON

DUAL RJ-45 JACKS FOR CAT 5 CABLE

RED LED FOR NET ACTIVITY

GREEN LED FOR SYSTEM/RPM STATUS

RPM TEST PROBE JACK "SIGNAL"

LED CONNECTOR

MANUAL SPEED POT

MOTOR CONTROL HARNESS CONECTOR

CONTROL MODE DIP SWITCH

S1

1 1 2 3 4 5 6 7 82

RPM TEST PROBE JACK "COM"

S2

NETWORKING
ADDRESSING DIP SWITCH

ANALOG INPUT "COM"

ANALOG INPUT "SIGNAL"

7Innovators in Clean Air Technology | www.envirco.com | Operation & Maintenance

MAC 10® LEDC

4x4 Fan Filter Unit

Installation & Service Manual

CONTROL MODES

The ENV1028 operates in one of three selectable modes. The Mode is selected using DIP Switch S1.

• MANUAL control, on-board potentiometer

• ANALOG control, Remote 0-10 VDC

• NETWORK control, MODBUS RTU

Manual Mode = 1 OFF 2 OFF

ON ADE02

1 3 4 5 6 7 8

O
N

1

2

Analog Mode = 1 ON 2 OFF

ON ADE02

1 3 4 5 6 7 8

O
N

1

2

Network Mode = 1 OFF 2 ON

ON ADE02

1 3 4 5 6 7 8

O
N

2

2

2

1

2

Network Mode = 1 ON 2 ON

ON ADE02

1

2

Note: Network mode can be congured using either DIP switch setting shown above.

DIP switch pictorials are for reference and may be labeled differently by the manufacturer.

8 Innovators in Clean Air Technology | www.envirco.com | Operation & Maintenance

1 3 4 5 6 7 8

2

O
N

MAC 10® LEDC

4x4 Fan Filter Unit

Installation & Service Manual

Manual Control Mode:

In Manual control mode, the motor speed is set using the onboard potentiometer. Onboard potentiometer rotation is CW to increase

the motor output.

Analog Control Mode:

In ANALOG control mode, the motor output is set using an external 0-10 VDC demand signal.

Network Control Mode:

In NETWORK control mode, the motor output is set using MODBUS Register 2. Motor output is specied as a value from 0 to 100

representing a percentage of motor torque output. Each ENV1028 in a MODBUS network must be set to a unique address. The

address value is set in binary format using the eight DIP switches of switch bank (S2). A maximum of 200 ENV1028 devices is

recommended per local area network(LAN). If an Envirco ACC Control Console is the MODBUS master, then addresses should be

assigned within the address range supported by the Control Console. Address zero should not be used as it is reserved for global

commands. Address switch settings are only checked by the ENV1028 at power-up. Power must be cycled (OFF/ON) before any

changes take effect.

ON ADE02

1 3 4 5 6 7 8

2

O
N

1

2

Control Mode
DIP Switches

Addess DIP Switches

S2

S1

Note: Network mode can be congured using either DIP switch setting shown above. DIP switch pictorials are for

reference and may be labeled differently by the manufacturer.

Registers relevant to this mode:

• Register 1 “Start/Stop” (R/W)
– To enable motor, write a value of 1; To disable motor, write a value of 0

• Register 2 “Motor Set Speed” (R/W)
– Motor Target speed value. Values may be written from 0 to 100

• Register 6 “RPM” (R)

– Motor RPM. Read from the motor

• Register 12 “Actual Motor Speed Instruction” (R)

– Speed control signal applied to the motor by the ENV1028.

(R/W) = Read/Write, (R) = Read Only

ON DIP

12345678

ON DIP

1



ON

12345678

ON



DIP

11

DIP

ON

12345678

ON

DIP

21

DIP

12345678

ON DIP

12345678

2

3

12345678

ON

12345678

Example of binary S2 switch settings

DIP

12

13

12345678

ON

12345678

DIP

22

23

9Innovators in Clean Air Technology | www.envirco.com | Operation & Maintenance

MAC 10® LEDC

4x4 Fan Filter Unit

Installation & Service Manual

ELECTRICAL SPECIFICATIONS

Control and Interface Signals:

1. External Speed 0-10V Input

• Input impedance 20k Ohms.

• MIN ON-to-OFF threshold: 190mV*

• MAX OFF-to-ON threshold: 240mV*

• ON (~215mV) to 9.89V linearly scales 1 to 99% speed.

• 9.89V or more deadbands to 100% speed.

2. External LED Output

• 10mA regulated

• LED forward voltages up to 5V

3. RPM Signal

• Signal Value: mVDC = RPM

• Ex: 900mV = 900RPM

• RPM Output Range: ~ 0, 5 to 2000 RPM (0, 5mV to 2000 mV DC)

• RPM Output Resolution: 5RPM (Zero, 400 steps from 5 to 2000 RPM inclusive)

Electrical and Environmental Specications:

Specication Min Typical Max Units

Input Voltage 22 24 42 VAC

Supply Frequency 50 50/60 60 Hz

Input Power Consumption na na 0.5 VA

Ambient Operating Temperature 0 25 50 C

Test Probe JacksPoints:

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 a S2 address setting of 1 or greater, the test probe jacks output 0-2000 mVDC rep­resenting motor RPM. By changing the address S2 switch to 0, the test probe jacks will output 0-1000 mVDC representing
0-100% demand signal to the motor. The address may be changed without interrupting power to the control card.

• In Network Control Mode, 0-2000 mVDC always represents RPM.

LED Indicators:

• Onboard Status LED:
The Onboard Status LED is software controlled by the unit microcontroller. The Status LED is solid ON when RPM reported by
the motor is greater than zero and OFF when RPM reported by the motor is zero.

• External Status LED:
Support for an external Status LED (10mA current-controlled driver), via a 2-pin MTA connector, for remote system status noti-

cation. The external Status LED operates in the same manner as the Onboard Status LED.

• Onboard Net LED:
The Onboard Net LED is driven directly by the receive data signal. The NET LED shows all network trafc on a 2-wire network.
The NET LED is intended to conrm low-level network connectivity, independent of microcontroller or rmware functionality. If
A/B network wires are swapped, the NET LED will be normally on, providing quick diagnostics of this common condition.

Net LED Status Denition

LED OFF Power Lost or No Communications

LED Flickering Network Data Trafc In Progress

LED ON A/B network wires are swapped

RJ45 Network Cable Connections:

1 2 3 4 5 6 7 8

Bus Power

Pass Through

0V (GND) RS-485 0V (GND) Bus Power

+ NC NC -

Red Network LED Green Status LED

Pass Through

10 Innovators in Clean Air Technology | www.envirco.com | Operation & Maintenance

MAC 10® LEDC

4x4 Fan Filter Unit

Installation & Service Manual

COMMUNICATION SPECIFICATIONS

Overview:

• MODBUS RTU protocol over RS485 (serial)

• 9600 baud rate, word length is 8, parity is none(n), stop bits=1

• 255 unique address values selectable by S2 switch settings
(recommended network node capacity 200 nodes)

• Slew rate limited transceivers for improved network performance MODBUS Register Summary Table

• DO NOT USE CROSSOVER CABLES. THIS MAY DAMAGE THE CONTROL CARD OR RENDER IT NON-OPERATIONAL.

MODBUS Register Specications:

Register Name R/W Values & Defaults Units Origin Comments

1 RUN/STOP RW 0,1 1 RAM power up from REG 14

2 DEMAND RW 0-100 % RAM power up from REG 10

6 SPEED R 0,5-2000 RPM LIVE

7 ANA1 R 0-1000 - LIVE Onboard Pot 0-1000=0-100%

9 STATUS R see detail - LIVE

10 DEFAULT SPEED RW 0-100 50 EEPROM applies to network only

12 CURRENT SPEED R 0-100 - LIVE

14 DEFAULT RUN/STOP RW 0,1 1 EEPROM applies in network mode only

24 ANA2 R 0-1000 - LIVE 0-10V input 0-1000=0-10VDC

To reset non-volatile registers to factory default values, write 170 (AA hex) to Register 14, and then cycle power.

Note: Register 24 may be read in network mode to determine the value of 0-10VDC signal that may be connected.

For example, a pressure transducer may be connected to indicate unit interal static pressure.

11Innovators in Clean Air Technology | www.envirco.com | Operation & Maintenance

MAC 10® LEDC

4x4 Fan Filter Unit

Installation & Service Manual

■ Troubleshooting

Mode Choice:

Verify mode setting choice to DIP switch S1 (Control Mode), which is manual mode and then retry.

Net LED Status Denition

Green LED OFF Power Lost or No Communications

Green LED Flickering Network Data Trafc In Progress

Green LED ON A/B network wires are swapped

Red Network LED Green Status LED

Motor Issues in Manual Mode:

(If you are in a network or analog mode, contact your controls contractor for troubleshooting assistance; if you continue to

need assistance, contact the factory.)

Unit is not adjustable:

Step 1. Verify that rotation of the manual speed potentiometer does not change the RPM. If rotating does nothing, remove
the electrical box cover, then remove the 4-pin motor connector from the control board and reinstall 180 degrees rotated.

Also insure that the 4-pin connection wires are pushed down securely onto connector pins. Again adjust the knob to verify
proper fan operation. Note: The 4 pin connector is on the 1/8” white cable from motor.

Low Air Velocity:

Step 1. Check to be sure that the manual speed potentiometer is set correctly.
Step 2. Check incoming power supply for proper voltage (120,208-240,277/24).
Step 3. Examine the HEPA lter.

High Air Velocity:

Step 1. Check to be sure that the air ow settings are correct.

Filter Issues:

Non-Laminar Flow and/or Excessive Contamination:

Step 1. Insure that no large obstructions are upstream of airow pattern.
Step 2. Determine that no other air-moving devices are operating in or around clean room which disrupt room’s

airow pattern.

Step 3. Check air velocity and if low, conduct the “Low Air Velocity” procedure outlined above.

If failure continues, contact Envirco Technical Support at 800-884-0002.

12 Innovators in Clean Air Technology | www.envirco.com | Operation & Maintenance

MAC 10® LEDC

4x4 Fan Filter Unit

Installation & Service Manual

■ Service: Removal and Replacement of Standard Filters

WARNING

WARNING

DISCONNECT THE UNIT FROM THE ELECTRICAL

POWER SOURCE BEFORE ATTEMPTING

ANY SERVICE

Note: All lters should be visually inspected for freight damage before installation. Since the lters are 4’ x 4’ in dimension
it is necessary to use two workers when lifting the lter, and four workers for installation to avoid twisting or separation
of the media seals. Handle the lter only by the frame and never place anything on the upstream lter side of the lter.
Additionally, it is important to keep the lter level to prevent any shearing force on the media itself.

For Standard Filters:

Tools Required: Phillips Head Driver, Battery Operated Drill

Step 1. Remove the 28 plenum housing screws. Retain for installation of new lter.
Step 2. The plenum housing must be raised up and placed out of the way to allow the lter to be turned and lowered

through the ceiling opening. Service wiring may need to be disconnected by qualied personnel.
Step 3. Before replacing with the new lter, carefully inspect the new lter for any visible damage. Also inspect the gasket

and the T-Bar to insure a tight seal. Replace if necessary.

Step 4. To replace a lter, raise the lter and rotate into position in the ceiling grid (with power off) , then lower the plenum
housing into place. Reconnect wiring and hardware from previous steps that have been removed.
Step 5. Restore power and verify proper operation of FFU.

THE STANDARD FILTER IS PROTECTED WITH AN

EXPANDED METAL FACE SCREEN. THIS IS

NEVER TO BE USED TO HANDLE THE FILTER.

IT IS ONLY FOR PROTECTION AGAINST AN

ACCIDENTAL TOUCH OF THE FILTER.

ONLY HANDLE THE FILTER BY THE FRAME.

Screws

(28)

HEPA/ULPA

Filter

Plenum Assembly

Standard Filter Change

13Innovators in Clean Air Technology | www.envirco.com | Operation & Maintenance

MAC 10® LEDC

4x4 Fan Filter Unit

Installation & Service Manual

■ Service: Removal and Replacement of RSR/E Filters

WARNING

WARNING

DISCONNECT THE UNIT FROM THE ELECTRICAL

POWER SOURCE BEFORE ATTEMPTING

ANY SERVICE

Note: All lters should be visually inspected for freight damage before installation. Since the lters are 4’ x 4’ in dimension it
is necessary to use two workers when lifting the lter, and four workers for installation to avoid twisting or separation of the
media seals. Handle the lter only by the frame and never place anything on the upstream lter side of the lter. Additionally,
it is important to keep the lter level to prevent any shearing force on the media itself.

For RSR/E Filters:

Tools Required: Phillips Head Driver, Battery Operated Drill, 3/16” hex head ball driver (2ea)
Step 1. With the power off, remove the diffuser screen by removing the 6 each 10-32x1/2 screws, then carefully place in a

safe location.

Step 2. Loosen the eight 1/4x20 socket head screws far enough to rotate the eight lter clips 90°. The lter may be loose
enough to drop during this operation. If not, slowly pull the lter away from the knife-edge seal, taking care not to touch the
lter face during this operation. It is important to pull the lter slowly away from the seal, so that the gel remains in the lter
gel track.

Step 3. Carefully clean plenum assembly knife edge surface of residual gel material.
Step 4. Inspect lter for visible damage, if damaged set aside for replacement or repair.
Step 5. Inspect the gel seal, if reinstalling the removed lter. Determine if the gel has lost its ability to seal (i.e. the gel should

reform to cover the track without voids or openings), if so repair the gel material or consider replacement of lter.
Step 6. Place the lter evenly against the lter-sealing surface of the RSR unit. Reposition lter clips and screws. The
clips should be rotated and angled into place. It is recommended that four workers work on each corner of the lter
simultaneously, holding the lter seated into the track. Hand tighten clips from opposite corners evenly until all clamps are

tightened.

Step 7. Reinstall diffuser screen by hand-tightening the screws.
Step 8. Determine if recertication or testing of replacement is required.
Step 9: Restore power to FFU and verify proper operation of FFU.

THE STANDARD FILTER IS PROTECTED WITH AN

EXPANDED METAL FACE SCREEN. THIS IS

NEVER TO BE USED TO HANDLE THE FILTER.

IT IS ONLY FOR PROTECTION AGAINST AN

ACCIDENTAL TOUCH OF THE FILTER.

ONLY HANDLE THE FILTER BY THE FRAME.

Filter

Plenum

Assm.

Knife- Edge

Seal

¼ -20

Cap

Screw

10-32

PHP

Gel Track

Filter Clip

Diffuser

Screen

Filter

Caps

Screen

Screws

Diffuser

Screen

Screws

RSR/E Filter Change RSR/E Sheet Metal Filter Replacement

14 Innovators in Clean Air Technology | www.envirco.com | Operation & Maintenance

MAC 10® LEDC

Installation & Service Manual

■ Service: Standard and RSR Motor Removal and Installation

4x4 Fan Filter Unit

WARNING

DISCONNECT THE UNIT FROM THE ELECTRICAL

POWER SOURCE BEFORE ATTEMPTING

ANY SERVICE

Tools Required: Phillips Head Driver, Battery Operated Drill, (2) 8” adjustable wrenches, 10 mm hex head wrench,
#2 screwdriver, and slip joint pliers

Step 1. To gain access to the motor, remove the ceiling panel next to the unit, if applicable.
Step 2. Switch the ON-OFF switch to the off position.
Step 3. Loosen the electrical box cover screws (2), and slide/lift off cover.
Step 4. Make note of all wire routing and locations for later reinstallation.
Step 5. Disconnect 4-pin and 5-pin wire harnesses from the electrical box housing and remove the tubing for test port, if

installed.

Step 6. Remove the twelve mounting screws to free the motor/blower assembly from the lid assembly. If using power
drivers, set the unit to a low torque setting to avoid stripping the sheet metal screws. Carefully remove housing assembly,
paying attention to wire routing.
Step 7. Unwire the control cap by removing the cap cover and unplugging the cable connector to the motor from inside, then
pull back through the grommet next to the motor. Rubber grommet will need to be removed for connection clearance.

Step 8. Remove the six 10 mm bolts from the motor mounting plate to motor housing assembly.
Step 9. Using one adjustable wrench, loosen the hex nut that attach the blower wheel to the motor shaft while holding motor

shaft still with the second wrench. Remove blower wheel from motor shaft and the c-clip for reuse with new motor.
Step 10. Remove the motor mounting hardware from the backside of the motor mounting plate. Replace with the new motor

and reassemble by reversing the above order.

Motor Housing

Assm.

Motor Mounting Plate

10 mm bolts

ELECTRICAL SERVICE SHOULD ONLY

BE PERFORMED BY A LICENSED

OR QUALIFIED ELECTRICIAN.

WARNING

Motor Shaft

Hex Nut

Mounting

Screws

C-Clip

Motor Mounting

Plate

Wiring

Grommet

Motor/Electrical Removal Motor Assembly

Blower

Wheel

Motor

Motor Mounting

Hardware

15Innovators in Clean Air Technology | www.envirco.com | Operation & Maintenance

MAC 10® LEDC

4x4 Fan Filter Unit

Installation & Service Manual

■ Service: RSR/E Motor Removal and Installation

WARNING

DISCONNECT THE UNIT FROM THE ELECTRICAL

POWER SOURCE BEFORE ATTEMPTING

ANY SERVICE

Note: Minimum 2 person project.

Tools Required: 3/16 Ball Driver, Phillips screw bit, Head Driver, Battery Operated Drill, (2) 8” adjustable wrenches, 10 mm
hex head wrench, #2 standard screwdriver, and slip joint pliers

Step 1. Diffuser Screen Removal.
Step 2. HEPA Filter Removal.
Step 3. Remove (10) bafe mounting screws, carefully remove bafe.
Step 4. Disconnect the 4-pin and 5-pin control cables at the cap.
Step 5. Remove cover of cap to access motor cable for disconnection and routing back to motor - two screws for cap cover/

mounting of cap have nuts needing to be re-used.

Step 6. At the motor mounting plate, remove the (4) gussett screws at the corners, then the (6) bolts of the lower blower

assembly.

Step 7. Remove blower wheel using (2) adjustable wrenches, one to hold motor shaft and the other to losen the 3/4” hex
nut. Once wheel is removed, then using screwdriver, pull c-clip from motor shaft.
Step 8. Carefully route motor wire through grommet hole after removing rubber grommet to allow for cable connection and

clearance.

Step 9. Remove hex nuts and washers from (4) mounting studs of motor to separate motor from plate.
Step 10. Install new motor and components in reverse order.

Motor Housing

Assm.

Motor Mounting Plate

10 mm bolts

ELECTRICAL SERVICE SHOULD ONLY

BE PERFORMED BY A LICENSED

OR QUALIFIED ELECTRICIAN.

WARNING

Motor Shaft

Hex Nut

Mounting

Screws

C-Clip

Motor Mounting

Plate

Wiring

Grommet

Motor/Electrical Removal

16 Innovators in Clean Air Technology | www.envirco.com | Operation & Maintenance

Motor Assembly

Motor

Motor Mounting

Blower

Wheel

Hardware

■ Wiring Diagrams

MAC 10® LEDC

4x4 Fan Filter Unit

Installation & Service Manual

4 Pin MTA

Motor Connector

Remote Run

Indicator LED

4 pin

Control

Cable

Universal Card Wiring Diagram

5 pin

Power

Cable

17Innovators in Clean Air Technology | www.envirco.com | Operation & Maintenance

MAC 10® LEDC

4x4 Fan Filter Unit

Installation & Service Manual

■ Replacement Parts List

MAC 10 4x4 Parts Part Number

Grommet 63388

Motor - 120/240/277 ECM w/ Program 24397-025

Choke 5.5 amps 64103

Transformer 120/24 volts 63667

Transformer 220/24 volts 63666

Transformer 277/24 volts 63665

Venturi ring 64115

Blower Wheel Poly 63825

Universal Control Card 265888

Pressure Switch 63415-001

Filter HEPA Standard 47.63 x 47.63 White Painted Metal Screen 69575-004

Filter RSR/RSRE 45 x 45 x 3 HEPA 69604-001H

Filter RSR/RSRE 45 x 45 x 3 ULPA 69604-001U

Rocker Switch 63739-002

Finger Guard 63576-003

RSR-Filter Clip (RSR) 38205-001

Screw 1/4-20x1/2 (RSR) 63152

Washer Flat Nylon .20 ID 120456-005

Eyebolts 222449-001

Diffuser Screen Aluminum 842732-001

Note: Verify lter size by contacting factory (see page 3).

18 Innovators in Clean Air Technology | www.envirco.com | Operation & Maintenance

Installation & Service Manual

MAC 10® LEDC

4x4 Fan Filter Unit

■ Limted Warranty

LIMITED WARRANTY: Unless otherwise expressly stated

in Envirco’s published specifications for the Goods, Envirco

warrants that Goods 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 eighteen (18) months from the date

of shipment from Envirco’s facility, except for services for

which the warranty shall apply for ninety (90) days from
the date of performance (the “Warranty Period”). Provided
Buyer informs Envirco in writing of any breach of warranty

prior to the expiration of the applicable Warranty Period,
Envirco shall, as its sole obligation and Buyer’s sole and

exclusive remedy for any breach of this warranty, repair or
replace/re-perform the Goods which gave rise to the breach

or, at Envirco’ option, refund the amounts paid by Buyer

for the Goods which gave rise to the breach. Any repair,

replacement or re-performance by Envirco 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
Envirco in writing, Buyer shall bear the costs of access, de-

installation, re-installation and transportation of Goods to

Envirco and back to Buyer. These warranties and remedies

are conditioned upon (a) the proper storage, installation,
operation, and maintenance of the Goods and conformance

with the proper operation instruction manuals provided by
Envirco or its suppliers or subcontractors, (b) Buyer keeping

proper records of operation and maintenance during the
applicable Warranty Period and providing Envirco access to
those records, and (c) modification or repair of the Goods

only as authorized by Envirco. Envirco does not warrant the

Goods or any repaired or replacement parts against normal

wear and tear or damage caused by misuse, accident, or

use against the instructions of Envirco. Any modification or
repair of any of the Goods not authorized by Envirco shall

render the warranty null and void. EXCEPT AS EXPRESSLY

SET FORTH HEREIN, ENVIRCO MAKES NO OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING,
BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES
OF MERCHANTABILITY, NON-INFRINGEMENT OR
FITNESS FOR A PARTICULAR PURPOSE WHICH ARE
HEREBY DISCLAIMED TO THE EXTENT PERMITTED BY
APPLICABLE LAW.

■ Testing

Each MAC 10 LEDC filter unit is thoroughly tested at the

factory before shipment. However, because of the “rigors” of

shipping, ENVIRCO encourages its re-test after installation.

ENVIRCO recommends that the customer contact an

independent organization, with technicians trained and

experienced in performance evaluation and maintenance of
clean air equipment.

HEPA filters (Type J) are tested to IEST-RP-00034. ULPA
filters are tested to (Type F) IEST-RP-00034. All filters are UL
900 recognized. Your filters may have special requirements,
please see original engineering specifications for you specific
project.

All units that are airflow tested at Envirco are tested using a
Shortridge Airdata Multimeter 870 with a Velgrid head. The

recommended method of reading is to place one corner of

the Velgrid head 1-1/4” from the corner of the filter face and
then take four reading evenly spaced along the four foot

side, then repeat these reads three additional times. This
gives a total of 16 reading to test the unit. All advertised data

is based on using the Velgrid with 16 readings (256 velocity

points). Envirco recognized the using 16 reading during a
cleanroom start-up may be time consuming and recommends

using 4 Velgrid readings taken on each 2x2 filter section will

approximate the same as 16 readings.

Additional independent testing on the Envirco Mac 10

4x4 shows that using two-2x4 hoods simultaneously give
airflow data (cfm) with 5 percent of a duct traverse using 10
diameters of straight duct upstream of the fan intake.

19Innovators in Clean Air Technology | www.envirco.com | Operation & Maintenance

Clean air solutions built for you.

MORE INFORMATION AVAILABLE AT WWW.ENVIRCO.COM

Industrial

Cleanroom Products

®

» MAC 10

» MAC 10

» MAC 10

» MAC 10

» Ducted Ceiling Module:

DCM & RSR

» AC or DC Control Systems

Original

®

IQ™

®

LEAC™

®

LEDC™

Hospital & Healthcare

Hospital & Healthcare

®

» IsoClean

with Ultraviolet Light

» AirCeil

» Hospi-Gard® Room

Pressure Monitor

Enviramedic Products

» HOR Horizontal Flow

Enclosure

» HCF Horizontal Flow

Surgery Room

» VOR Vertical Flow Surgery

Isolator

and IsoClean

®

Pharmaceutical

Pharmaceutical &

Medical Device

®

» MAC 10

are available in stainless

steel diffuser screens or

complete stainless steel

construction

» Unimodule M-2 Vertical

Unidirectional Flow

Workstation

» METD 100% Exhausted

Vertical Flow Workstation

» Unidirectional Downow

RX products

Laboratory & Research

Laboratory & Research

» 100-Plus Horizontal or

Vertical Flow Clean Bench

» Unidirectional Flow

Horizontal Flow Bench (LF)

» TT Table Top Horizontal

Flow Clean Bench

» EnviraLab Sterility Module:

ESM

» NSF 49 Listed Biological

Safety Cabinet

Module

Envirco MAC 10 and VE5 are registered trademarks of Envirco, USA. Specications subject to modications or changes without notice. US patents 4,560,395 and 5,470,363. Other patents issued and pending in
foreign countries. Special thanks to Connect2Cleanrooms for cleanroom photography.

Envirco USA

101 McNeill Road | Sanford, NC 27330, USA

tel: [phone] | toll free: 800.884.0002 | fax:[phone]

www.envirco.com | email: [email protected]

Form P/N#: 267278

Envirco European Sales

The Cavendish Centre, Winnall Close | Winchester, Hampshire; S023 OLB, UK

tel:[phone] | fax:[phone]

www.envirco-emea.com | email: r[email protected]

Envirco Asian Sales and Manufacturing

Building #1, 200 Middle Suhong Road | Suzhou, Jiangsu PRC 215021

tel: [phone] | fax: [phone]

www.envirco.com | email: [email protected]Copyright ©2013 Envirco. All Rights Reserved.