Biological Controls MICROCON EXC7 Manuel utilisateur

8/19/2010

MICROCON®

EXC7 and EXC7-UV

User Manual

Read and Save these Instructions

Manufactured by

749 Hope Road, Suite A- Eatontown, NJ 07724 USA

Tel: 800-224-9768, 732-389-8922 Fax: 732-389-8821

www.biologicalcontrols.com

SAFETY INSTRUCTIONS

Understand the signal words that are

universally used for overall safety.

•DANGER

•WARNING

•CAUTION

DANGER identifies the most serious

hazards, which will result in severe

personal injury or death.

WARNING signifies hazards, which

could result in personal injury or death.

CAUTION is used to identify unsafe

practices, which would result in minor

personal injury or product and property

damage.

BEFORE

INSTALLATION OR PERFORMING

MAINTENANCE OR SERVICE, TURN

OFF THE MAIN HIGH VOLTAGE

POWER BREAKER TO THE UNIT.

ELECTRICAL SHOCK CAN CAUSE

INJURY OR DEATH. THERE MAY BE

MORE THAN ONE DISCONNECT.

READ INSTRUCTION

MANUAL THOROUGHLY AND

FOLLOW ANY WARNINGS OR

CAUTIONS IN THIS MANUAL AND

ATTACHED TO THE UNIT BEFORE

STARTING INSTALLATION OR

MAINTENANCE ACTIVITIES.

IMPROPER INSTALLATION,

ADJUSTMENT, ALTERATION,

SERVICE, MAINTENANCE, OR USE

CAN CAUSE FIRE, ELECTRICAL

SHOCK, OR OTHER CONDITIONS

THAT MAY CAUSE PERSONAL

INJURY OR PROPERTY DAMAGE.

WEAR SAFETY GLASSES AND WORK

GLOVES AND FOLLOW ALL SAFETY

LOCAL BUILDING AND ELECTRICAL

CODES. CONSULT A QUALIFIED

INSTALLER, SERVICE AGENCY OR

YOUR SUPPLIER FOR INFORMATION

OR ASSISTANCE.

NEVER OPERATE THE

UNIT WITH THE BLOWER EXHAUST

PORT UNCOVERED TO PREVENT

CONTACT WITH THE BLOWER

IMPELLER BLADES. ALWAYS WAIT

UNIT THE BLOWER STOPS SPINNING

BEFORE UNCOVERING THE

IMPELLER.

NEVER EXPOSE EYES

OR SKIN TO ULTRAVIOLET LIGHT

FROM ANY SOURCE. UV LAMPS

MUST BE OFF BEFORE OPENING THE

EXC-UV CHASSIS TO PERFORM

MAINTENANCE OR SERVICE.

PERSONAL INJURY MAY RESULT.

THE UV LAMP

CONTAINS A SMALL QUANTITY OF

MERCURY. IF THE LAMP BREAKS,

CLEAN AND DISPOSE OF WITH CARE.

Blower Module

Filter

Module Control Panel

Interconnect Cable Assembly

Filter Module

Table of Contents

Section: Page #

1. INTRODUCTION...........................................................................................................................................................1

2. INSTALLATION MECHANICAL................................................................................................................................2

2.1. System Ducting ................................................................................................................................................................2

2.2. Blower Module-Mechanical............................................................................................................................................2

2.3. Filter Module-Mechanical ..............................................................................................................................................2

2.3.1. Blower Intake collar-plate ..............................................................................................................................................3

2.3.2. Exhaust collar-plate ¼ and ½ HP Blower Modules......................................................................................................3

2.4. Spacing Modules and Components ...............................................................................................................................3

3. INSTALLATION ELECTRICAL..................................................................................................................................3

3.1. Blower Module-Electrical...............................................................................................................................................3

3.1.1. High Voltage Wall Switch (optional) .............................................................................................................................3

3.2. Filter Module-Electrical..................................................................................................................................................3

3.2.1. Blower to Filter Module Interconnect Cable Assembly ...............................................................................................4

3.2.2. Remote Control-Cable (24VDC) ....................................................................................................................................4

3.2.3. 24VDC Remote Controls (optional)...............................................................................................................................4

3.2.4. Switch Plate Control Unit (optional)..............................................................................................................................4

3.2.5. Key-Switch (optional)......................................................................................................................................................5

4. SYSTEM START-UP......................................................................................................................................................5

5. MAINTENANCE INFORMATION..............................................................................................................................6

5.1. Blower Module.................................................................................................................................................................6

5.1.1. Blower Removal...............................................................................................................................................................6

5.2. Filter Module ...................................................................................................................................................................6

5.2.1. Cleaning............................................................................................................................................................................7

5.2.2. Hour Meter ......................................................................................................................................................................7

5.3. Filter Renewal..................................................................................................................................................................7

5.3.1. Pre-Filter..........................................................................................................................................................................7

5.3.2. HEPA Filter .....................................................................................................................................................................7

5.4. UV Lamp Renewal ..........................................................................................................................................................8

6. System Applications ........................................................................................................................................................9

6.1. Creating A Negative Pressure Room..............................................................................................................................9

6.2. Room Filtration Only....................................................................................................................................................10

7. FACTORY RETURNS (RMA) ....................................................................................................................................10

8. WARRANTY.................................................................................................................................................................10

8.1. Making a Warranty Claim ...........................................................................................................................................10

9. SPECIFICATIONS.......................................................................................................................................................12

9.1. Filter Module .................................................................................................................................................................12

9.2. Blower Modules.............................................................................................................................................................12

10. ASSEMBLY FIGURES & DIMENSIONS..................................................................................................................13

10.1. Filter Module .................................................................................................................................................................13

10.2. Blower Module...............................................................................................................................................................14

11. SCHEMATICS..............................................................................................................................................................15

11.1. Typical System 115V Schematic...................................................................................................................................15

11.2. Typical System 230V Schematic...................................................................................................................................15

11.3. Typical System 1/5 HP 2-Speed Motor Schematic.....................................................................................................16

11.4. Remote Wall Switch Option Schematics......................................................................................................................16

12. EXC7 PARTS LIST.......................................................................................................................................................17

MICROCON®

EXC7 and EXC7-UV

1. INTRODUCTION

The MICROCON® EXC7 and EXC7-UV are HEPA-Filter based filtration systems that provide

superior room air-purification. The difference between the EXC7 and the EXC7-UV is the addition

of the UVC germicidal light components located in the Filter Module (FM); otherwise, the filter

modules are identical. The Blower Module (BM) portion of the system contains a 1/5hp, ¼ hp

motor, or ½ hp blower motor. All of the configurations are capable of producing either negative or

positive room-pressure environments.

The system is typically equipped with a single Blower Module and one or two Filter Modules. The

components are mounted separately and interconnected with 10” or 12” diameter ducting and with

a provided connectorized Interconnect Cable Assembly.

When a controlled negative room-pressure is required, the system will include a ceiling diffuser

and an exhaust control-duct (transition box with damper). Several low voltage (24V) remote power

control and monitoring options are available.

2. INSTALLATION MECHANICAL

Turn off power at the facility fuse or circuit breaker panel before

proceeding with wiring or installation activities.

The system has more than one electrical-disconnect.

Always Support the Equipment Directly From Building Structure. Obtain an

approved fixture attachment design before proceeding with the installation. The

ceiling support system of the building must be checked to assure that it is

sufficient to carry the weight of the hardware.

2.1. System Ducting

Connect the ducting to the Blower Module, Filter Module(s), room diffusers, and transition boxes

per the system design. Secure the ducting to the inlet and exhaust collars making sure that no air-

leaks exist in the system. Ducts should run in straight lines whenever possible since elbows, bends,

and long runs will decrease the system airflow capacity (cfm).

When maximum CFM is desired, use twelve (12“) ducting wherever possible. Blower and Filter

Modules are typically equipped with 12” duct-collars. The exception is with the smaller 1/5 hp

Blower Module option that use 10” duct-collars. A 10”- 12” adaptor is added to systems that use

the 1/5hp blower module. The same adaptor may be fitted to the Filter Module if it is desired to use

10” ducting between the two components.

Solid-wall ducting is generally preferred over flex-ducting since it provides the lowest air

resistance and best CFM performance. Flex-ducting is used where the speed and ease of installation

is the priority. A combination of duct types and sizes is also an option.

2.2. Blower Module-Mechanical

The Blower Module can be mounted on a platform or suspended. Typically it is mounted above a

suspending ceiling-grid and supported by the four corners of the chassis. The Blower Module is

designed to mount in any position depending upon the height restrictions within the ceiling area.

The unit may be supported using threaded rod, chain or perforated metal straps. All corners and

sides of the larger chassis are equipped with small depression marks in the sheet-metal to mark

standard support locations. Drill out at least four (4) of the chassis depressions to attach the desired

hardware. A set of four (4) eye-bolts eq/w nuts are provided with each Blower Module (1/4 x 20 w/

9/16” ID diameter loop) for a chain support system. The eye-bolts typically extend 15/16 inches off

the mounting surface of the chassis. To prevent air leaks, always calk air-gaps around holes or

mounting hardware attached to the chassis.

The 1/5 hp blower module chassis dimensions are smaller than the ½ and ¼ hp Blower Module

chassis. See the specifications for dimensions. In general, the 1/5 hp system is equipped for 10 inch

ducts and the ¼ and ½ hp systems utilizes 12” ducting. Adaptors may be equipped when required.

2.3. Filter Module-Mechanical

The MICROCON® EXC7 and UV Filter Modules are designed to fit within the standard (nominal

24" x 24") T-bar hardware used to suspend ceiling tiles. Gasket each Filter Module onto the T-'bar

grid surface to provide an air-tight seal between the module and the T-bar channels.

Four (4) small brackets located on the top of the Filter Module chassis must be used to level and support the

weight of the unit using approved cable, wire, or chain hardware.

2.3.1. Blower Intake collar-plate

To avoid freight damage, the duct collar-plate is usually mounted with just four (4) sheet metal

screws with the duct-collar facing into the blower chassis,. The plate must be turned around prior to

installation and reattached using these screws and ten (10) others packaged in a small plastic bag

taped to the Blower Module.

The plate may be attached in one of two (2) positions since the collar is not centered on the blower

chassis. Select the position that best aligns the inlet duct-work with the chassis.

2.3.2. Exhaust collar-plate ¼ and ½ HP Blower Modules

This plate is the same part as the Inlet Collar but has only one correct mounting and is shipped in

the proper position. The collar must align with the blower chassis exhaust port opening.

2.4. Spacing Modules and Components

The distance between a Blower Module and Filter Module cannot exceed nine (9’) feet without a

custom-length Interconnect Cable Assembly. A “slave” Filter Module (a second Filter Module)

requires no Interconnect Cable; therefore, spacing is determined by the duct length restrictions

only.

The distance between the Filter Module intake-grille (door) and any ceiling diffuser should be at

least 6-8 feet to avoid a “short-circuit” of air-circulation. This happens if most of the air-circulation

occurs only between the Filter Module and the ceiling diffuser; as opposed to dispersing the air

more evenly throughout a room.

3. INSTALLATION ELECTRICAL

Turn off power at the facility fuse or circuit breaker panel before proceeding

with wiring or installation activities.

All electrical installation and maintenance must be performed by qualified

individuals and in accordance with the National Electrical Code. ANSI/NFPA

70-1999 and local codes.

3.1. Blower Module-Electrical

The module contains an electrical box to connect to the facility high voltage source (115/230VAC

50/60Hz). The electrical box contains a fuse or breaker to protect the internal wiring. Follow the

appropriate wiring schematic in the appendix depending upon the voltage source available at the

facility power panel. Note that the blower module has been pre-wired for a specific voltage.

Always check the serial number label to confirm the power requirements.

3.1.1. High Voltage Wall Switch (optional)

A high voltage wall switch may be installed to control the input power to the Blower Module.

The switch is provided by the installing electrician.

3.2. Filter Module-Electrical

The Filter Module contains the system power switch, pressure gauge, and optional Hour-Meter. It

also contains some additional components when the remote monitoring and power control options

are provided. Note that the UV lamps for EXCFM-UV units are not installed to protect them

during shipping. The lamps are packaged and taped to the inside of the unit. The lamps should be

installed before adding duct-work to the unit. They can be accessed and installed through the 12”

duct opening in the side of the unit. If not, the bulbs can be accessed by removing the HEPA filter.

Make sure the lamps are clean before installing them into the bi-pin connectors mounted inside the

filter module. The quartz glass may become damaged (etched) when powered with finger grease or

other debris on the lamp surfaces.

3.2.1. Blower to Filter Module Interconnect Cable Assembly

A 10- foot (10’) five (5) conductor wiring-harness is included with each Filter Module. This cable

contains the 120-230VAC circuits necessary to operate the system. It is fitted with insulated

molded-connectors at each end that mate to connectors equipped on the Blower and Filter Module

units. Connect the Filter Module to the Blower Module using the interconnect cable after all

mechanical work is completed.

3.2.2. Remote Control-Cable (24VDC)

When an optional 24VDC remote wall-switch controller is employed an 18-22ga. low voltage cable

is connected between the Filter Module and a wall mounted switch or control unit. Note that the

Filter-Module front panel power-switch will over-ride a remote switch; therefore, the Filter Module

front panel power switch must remain in the "ON" position to activate the remote control function.

The Filter Module power switch will illuminate only when both the Filter Module Power switch

and the remote key-switch are in the "ON" position. Some Filter Modules are equipped with an

internal 24VDC power module. A label near the exit port for the low voltage control cable

indicates the presence of the 24VDC power module.

The internal 24VDC power module is hard-wired to be on 24/7 and there is no

power-off switch. The Blower Module High Voltage must be turned off at the

facility circuit breaker panel or the Interconnect Cable Assembly must be

unplugged from one end to turn off the 24VDC low voltage power.

3.2.3. 24VDC Remote Controls (optional)

Several methods may be used to provide a 24VDC low voltage “on/off” remote-control function

for the system. See the schematic section of this document. Use standard alarm or thermostat-type

wiring to extend the control cable if needed. The control cable is provided on the Filter Module

only when the remote switching option is ordered.

•A standard single-pole light switch (provided by the installing electrician).

•A Key-Switch mounted on a stainless-steel switch-plate (available from Biological

Controls). Part # KSW1 or KSW2 adds a green Power "ON" LED.

•Facility management system capable of providing a “dry-contact” single-pole relay.

•Wall Plate Control Unit (see description below). Part # WPC.

3.2.4. Wall Plate Control Unit (optional)

The Filter-Module is equipped with a 30’foot 3-conductor control cable (4-wire when a pressure

switch option is included). This cable can be lengthened by splicing it to a similar alarm or

thermostat-type (18-22ga.) cable.

A 24VDC universal input power-module is supplied with each Switch Plate Control Unit. The

power-module output can be spliced into the cable at any point in the run. It must be plugged into a

facility AC power source that will not be interrupted during normal activity. Note that the polarity

(+,-) of the power-module 24VDC must be observed as shown in the schematic for proper

operation. The module positive (+) wire is marked with a white-ink dashed line.

Some Filter Modules are equipped with an optional internal 24VDC power module. When

equipped do not use an external unit described above. See the Schematic wiring for each option in

the Appendix.

3.2.5. Key-Switch (optional)

The Key Switch provides only an on/off - key-switch and a LED power indicator.

Switch Plate Controller Key Switch

4. SYSTEM START-UP

After electrical wiring is completed and before applying power to the system, check the

ground (earth) wiring continuity to all of the components per the electrical safety

requirements.

Note: UV units are shipped with the lamps uninstalled and packaged inside the

chassis. The lamps should be installed into their sockets before starting the system

to avoid having to remove the HEPA filter to gain access.

When the system components have been mounted and all of the duct-work and electrical wiring

connections have been completed, the system is ready for operation. Use the on/off switch located

on the Filter Module face-plate or use the optional wall mounted remote switch (note the Filter

Module power-switch must always remain “ON” when used with any remote control switch

option). When powered, the hour-meter will start recording system run-time (the decimal-point

blinks). The mini-helic pressure-gauge will register the filter resistance and the Filter Module

power-switch will illuminate.

Note: When the UV lamps in the EXC7-UV are operating properly a view-port on the faceplate

will glow blue.

For negative-pressure environments (see the System Applications Section), adjust the damper in

the transition-box to achieve the desired room-pressure. (Note: A pressure monitor will be

necessary for this procedure. Wall mount and portable units are available from Biological

Controls.)

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