SMOG-HOG SH Series Manual de usuario

OPERATIONS MANUAL

SH Series Models:

SH-6

SH-10

SH-20

SH-40

SH-50

SH Series Operations Manual

TABLE OF CONTENTS

SECTION DESCRIPTION PAGE

I. INSPECTION OF EQUIPMENT 2

II. INSTALLATION PLANNING 2

Ill. INSTALLATION

A. Unit Mounting 2

B. Metal Truss Supported Ceilings 3

C. Column or Wall Mounting 3

IV. AIR DIFFUSER

A. Unducted Installation 3

B. Ducted Installation 5

V. ELECTRICAL REQUIREMENTS

A. Power Connection on C Models 5

B. Power Connection on PE Models 5

VI. MOTOR/BLOWER CHECKOUT

A. Drive Set Access Procedure 5

VII. DESCRIPTION OF COMPONENTS

A. Prefilters 5

B. Ionizing Sections 5

C. Collection Cells 6

D. Afterfilters 6

E. Power Packs 6

F. Push-to-Test Buttons 6

G. Blower 6

H. Drive 6

I. Outlet Vanes 6

J. Cabinet 6

K. Access Door (Electrostatics) 6

L. Access Door (Drive Set) 6

VIll. MAINTENANCE

A. Cleaning Instructions 6

B. Instructions for Replacing Ionizer Wire 7

IX. TROUBLESHOOTING

A. Troubleshooting Procedures 7

X. ORDERING PARTS 8

XI. APPENDIX

A. SMOG-HOG Parts List 9

B. SH Series Airflow Curves 10

C. Wiring Diagrams 11

SH Series Operations Manual

SH Series Operations Manual 2

SMOG-HOG NOMENCLATURE

SMOG-HOG electronic air cleaners are available in a

variety of configurations and sizes. Codes shown below

identify characteristics which might be built into a given

unit. This model number completely identifies the design

and can be found on the unit nameplate. For example, a

model designated SH-10-PE-H could be defined

according to descriptions listed below (see bold):

SH -SMOG-HOG Series

10 -Airflow in 100s of CFM (i.e., 10 ≅1,000 CFM, etc.)

P-Polyphase, external high voltage wiring

C-

Corded (10' power cord) and external high voltage wiring

E-External high voltage wiring (internal power pack)

H-High static pressure blower◊

DP - Dual polarity

XB - Without blower

S-Stacked modules (SH-40/50 only)

T-Te e-shaped unit (SH-40/50 only)

◊Not available on SH-50 models

Models SH-6, SH-10, SH-20, SH-40 & SH-50

This type of SMOG-HOG Industrial Air Cleaner is a

self-contained, two-stage, Penney-type, electrostatic

precipitator complete with fully-interlocked, energy-limiting,

UL recognized power pack, mechanical prefilter, ionizer,

collection cell, afterfilter, blower assembly, indicator lights,

interlock switches and push-to-test buttons. Models

available include:

SH-6-C SH-20-PE

SH-10-C SH-40-PE-T

SH-20-C SH-50-PE-T

SH-6-PE SH-40-PE-S

SH-10-PE SH-50-PE-S

Models SH-10-XB, SH-20-XB, SH-40-S-XB &

SH-50-S-XB

This type of SMOG-HOG Industrial Air Cleaner is a

self-contained, two-stage, Penney-type, electrostatic

precipitator complete with fully-interlocked, energy-limiting

power pack, mechanical prefilter, ionizer, collection cell,

afterfilter, indicator lights, interlock switches and push-to-

test buttons. XB units are designed for use in tandem with

Models SH-10, SH-20, SH-40 and SH-50 or in a ducted

application where a blower is included in the existing

ventilation system. Models available include:

SH-10-PE-XB SH-40-PE-S-XB

SH-20-PE-XB SH-50-PE-S-XB

SH Series Voltages Available

Voltage Phase HZ Voltage Phase HZ

115* 1 60 230* 3 60

115* 1 50 380* 3 50

208* 3 60 460* 3 60

220* 3 50 575* 3 60

* UL listed

I. INSPECTION OF EQUIPMENT

Upon receipt of your SMOG-HOG, check carefully for any

possible shipping damage. Any damage to carton, skid,

etc. may be a warning to you that rough handling has

caused internal damage. Notify your delivery carrier and

enter a claim if any damage is found.

II. INSTALLATION PLANNING

UNDUCTED OR AREA CAPTURE: Consideration must be

given to the placement of the precipitator to maximize

efficiency. The number of units required to clean the air will

depend on the layout of the room and the concentration of

pollutants. Because it is necessary to develop proper

airflow patterns, the placement and number of

precipitators should be as suggested by UAS or your local

SMOG-HOG representative.

DUCTED OR SOURCE CAPTURE: When your

SMOG-HOG is used as a ducted source collector, the

enclosure or pick-up hood design is important for

adequate capture of contaminants. Drive pulleys and

belts have been selected to provide proper airflow at the

design static pressure specified. Pulleys and belts should

not be replaced without first contacting UAS.

Allow at least 36" door swing and access clearance on the

door side of the unit. All models except the SH-6 require

18" clearance from the electrical junction box on top of the

unit to any overhead obstruction to allow adequate

access.

III. INSTALLATION

Carefully remove the unit from the shipping container,

again inspecting for shipping damage. For ease of

installation, open access door and remove the cell, ionizer

and filters from the cabinet.

Ceiling mounted units are suspended by means of 1⁄2"

threaded rods run through weld nuts in the top corners of

the units. (See page 4 for weld nut locations on all but XB

models†.) Additional support should be used for auxiliary

equipment or ductwork.

†NOTE: Weld nuts are not provided on XB units. These

units are to be supported with flat washers and 1⁄2"-13

nuts supplied by the installer.

Reinstall the components removed earlier to facilitate the

mounting of the unit.

Unit Mounting

Models SH-6, SH-10 and SH-20 are designed for

suspended mounting. They can be provided with eyebolts

for chain hanging, but the length of chain should be kept

at a minimum. The preferred method of hanging is with 1⁄2"

threaded rod through the top of the cabinet. If chain

is used, it should be of the welded link type, with a 2,000

lb. test strength or better. “S” hooks used for connections

should be closed. The chain should be hung vertically. If

any angle is introduced, the chain and fasteners should be

SH Series Operations Manual

Figure 1

Proper Installation

Figure 2

Ceiling Mounted Unit

NOTE: The SMOG-HOG should not be used for support of

personnel or material. Check with local building

code/structural engineer to ensure proper installation to roof

truss or column.

Metal Truss Supported Ceilings

Figure 2 shows an SH-20 unit suspended from a metal

truss supported ceiling. Customer must take care to

determine that the truss will be sufficient to support the

weight. As shown, angle iron braces are secured between

two steel trusses. Rod length should be kept to a

minimum.

Column or Wall Mounting

Figure 3 shows an SH-50 (T-shaped) unit suspended from

a cantilevered frame from which the 1⁄2" threaded rods are

suspended. Rods are threaded into weld nuts located at

the corners of the blower cabinet. Rod length should be

kept to a minimum.

sized to handle the added tension. Figure 1 shows the

recommended method for suspending the units with chain.

Models SH-40 and SH-50 may be suspended by rod but

are not approved for chain hanging.

On oily applications, rear blower section elevation of unit

should be 1⁄2" higher than the entrance elevation.

IV. AIR DIFFUSER

The four-way adjustable air diffuser grille can be set to any

open position desired.

Unducted Installation (for area capture)

Air diffuser should be set for maximum contaminant

capture and even dispersion of clean air. The pattern

Figure 3

Column Mounted Unit

SH Series Operations Manual 4

Figure 4

DIMENSIONS AND MOUNTING HOLE LOCATIONS

(IN INCHES AND CENTIMETERS)

SH Series Operations Manual

Figure 5

Unit Access

should be that suggested by UAS or your local

SMOG-HOG representative.

Ducted Installation (for direct capture)

Air diffuser can be set to any position compatible with

personnel comfort.

V. ELECTRICAL REQUIREMENTS

Power Connection on C Models

The power cord on SH-6-C, SH-10-C and SH-20-C

should be used in connection with a properly sized and

appropriately located 115 VAC grounded outlet

receptacle. No alteration of the power cord should be

attempted nor should extension cords be used.

Power Connection on PE Models

The only electrical connection required is a power source

to the terminal block as shown in the wiring diagram inside

the top electrical junction box. Connect as indicated on the

“Supply Connection Location” label. See unit nameplate

for voltage specifications.

Units are factory wired for the voltage requirement

indicated to UAS by the customer. The electrical box has

no knockouts. Therefore, whatever electrical connectors

are standard in your plant may be used to bring the power

line into the unit.

The power switch for operating the unit and any fused

disconnect switch must be supplied by the customer

and located remotely (not supplied as part of the

SMOG-HOG). UL listed models are supplied by UAS with

a motor starter and remote start/stop pushbutton switch

as standard equipment.

VI. MOTOR/BLOWER CHECKOUT

After three-phase connection is made, check the direction

of rotation of the blower wheel. See Figure 5 for drive set

door access. If the wheel is not rotating in the proper

direction, reverse the motor rotation by interchanging any

two of the three AC input leads at the terminal block.

CAUTION: Even when running backward, some air

motion is noticeable. If the blower is rotating correctly,

the access door will be snapped shut by the strong

negative pressure within the cabinet.

When the SMOG-HOG is used in a ducted application,

blower speed is increased to compensate for the static

pressure loss of the ductwork. After ductwork is installed,

and with the unit operating, measure the current flow to

the unit using an amprobe. The ampere reading should

not exceed the FLA rating stamped on the motor

nameplate. If current flow is excessive, reduce blower

speed by adjustment of the variable pitch sheave on

the motor.

CAUTION: Measure the current at the remote starter

or disconnect. Erroneous readings will result if

measurements are made in the vicinity of the high

voltage power supply located in the electrical box.

Single-phase units (i.e., 115/1/50-60) are prewired for

proper rotation and line hook-up. Simply connect to single-

phase input circuit and unit is ready for operation.

Input to the high voltage power pack must not exceed 120

volts, 60 Hertz. This is supplied by the power line or the

step-down transformer as shown in the wiring diagram

inside the main electrical junction box on all units.

The indicator light on the unit is illuminated when high

voltage is present at the power pack. If the light fails to

illuminate when power is turned on, refer servicing to

authorized personnel.

Drive Set Access Procedure

1. Shut down blower.

2. Remove (1) cell and (1) afterfilter.

3. Reach through ESP compartment for access to

thumbscrew.

4. Rotate captive thumbscrew until blower

compartment door is released.

5. Reverse above operation for closure.

VII. DESCRIPTION OF COMPONENTS

(See page 1 for photos of individual model components)

A. Prefilters. Heavy-duty, reusable aluminum mesh,

industrial service filters aid air distribution and

mechanically remove large particles not suitable for

precipitation. They are interchangeable with afterfilters.

B. Ionizing Sections. Ionizing sections are independent

of collection cells for ease of maintenance. The frame, of

rugged aluminum construction, supports tungsten steel

ionizing wires. Each wire is spring mounted and easily

replaced in the field. Both spring and wire support bars

and heavy ceramic insulators are located out of the

airstream, behind a three-sided aluminum extrusion with

an airfoil design, to further limit insulator contamination.

An extremely dense ionizing field and integral bypass

SH Series Operations Manual 6

prevention baffles assure ionization of all particles

entering the precipitator.

C. Collection Cells. Parallel plate collection components

are of aluminum construction. Air gap insulators which

afford a longer path to ground are located completely out

of the dirty airstream. This arrangement maintains nominal

operating voltages longer, thus reducing the frequency of

cleaning. The insulators, along with the cell’s long plate

design, assure maximum efficiency and retention of

collected contaminant.

D. Afterfilters. Heavy-duty, reusable, industrial

aluminum mesh filters aid even air distribution across the

cells and trap any collected contaminant that might blow

off the cells during start and stop operations. They are

interchangeable with prefilters.

E. Power Packs. The proprietary design high-voltage

power supply sends 11 KV DC to collection components

and is limited to less than .005 amps of current at short

out. This limited current draw will protect both the power

pack and components in a short-out condition. Power

consumption is 75 watts maximum. The power pack is

located in an external electrical box.

F. Push-to-Test Buttons. An exclusive UAS

feature, these buttons verify electrical continuity during

equipment operation without the use of a meter. They are

also a convenient means to ground any residual charge

in components before removing them from a deactivated

unit.

G. Blower. A belt-driven, low speed, centrifugal-type

blower with sealed ball bearings is shock-mounted to the

cabinet to reduce noise and vibration.

H. Drive. Motors are continuous-duty, totally-enclosed

and fastened to adjustable motor mounts. The motor is

equipped with a variable speed motor pulley allowing

blower speed on-site adjustment.

I. Outlet Vanes. Four-way-direction, individually

adjustable deflectors permit adjustment of cleaned air

distribution to meet specific application requirements.

J. Cabinet. This 16-gauge steel housing is of wrap-

around construction with all seams welded. The cabinet is

prepared in a phosphatized wash cycle. The finish coat is

an electrostatically-applied powder paint, baked to ensure

a durable hard finish. The electrostatic compartment

features bypass baffles on the door and rear wall to guide

the contaminated airstream through the components.

K. Access Door (Electrostatics). Doors are hinged for

easy access and interlocked to shut down high-voltage

when opened.

L. Access Door (Drive Set). A separate hinged

door allows access to motor and blower for easy

adjustment (see Figure 5).

VIII. MAINTENANCE

Normal maintenance is confined to periodic cleaning of

cell, ionizer and filters, plus checking of the drive belt.

Rarely is any other maintenance necessary.

Cleaning Instructions

• Turn unit off and depress both push-to-test buttons to

remove any residual charge from components.

• Slide dirty collection components (prefilter, ionizer, cell

and afterfilter) from cabinet.

• Clean components by soaking in a hot solution of

detergent for a minimum of 30 minutes. Shake

components in the hot solution to remove loosened dirt.

Any cleaner used must be inhibited for the protection of

aluminum filters and cells. UAS has specific detergent

recommendations.

• Immediately after removing components from the

detergent bath, flush away any remaining residue and

rinse thoroughly with water. Shake off excess water.

• Set collection cells, ionizers and mesh filters in a warm

room, with plates standing vertically, until they have

completely drained and are dry to the touch. Twenty

minutes is normally satisfactory.

• Wipe off contaminant from the high voltage insulators

located on the back wall of the cabinet.

• Reinstall components in the cabinet, close the door and

turn the unit on. Connecting springs between cell and

ionizer sections must be turned to the center of the

cabinet for double component units (i.e., units with

adjacent removable components — SH-20, SH-40 and

SH-50). Electrical contact must be made between cells

and ionizers by these springs. Make sure wall and door

ground springs are in place and making contact with

ionizer and cell endplates respectively. See Figure 10 for

properly aligned assembly.

Figure 6

Replacing Ionizer Wire

SH Series Operations Manual

Figure 7

Checking Ionizer Voltage

Figure 8

Checking Cell Voltage

• Periodically check for loose drive belt on the

motor/blower unit. One-half inch deflection under light

thumb pressure at mid-point between pulleys is the

normal correct tension.

Instructions for Replacing Ionizer Wire

• Remove the damaged wire from each spring. Replace

spring if damaged.

• Loop one end of the new wire over the bottom spring

then extend the top spring and loop the end of the wire

over the spring (see Figure 6). Pliers may aid this

operation.

• Release the spring gently. The wire is now taut and

automatically centered.

NOTE: In the event that replacement wires are not

available, the ionizer may be left in service. Remove

the broken wire(s) and springs from assembly until

replacement is made.

THE FOLLOWING SECTIONS

ARE FOR THE USE OF

TRAINED PERSONNEL ONLY

CAUTION: Hazardous live and

moving parts are exposed during

the following procedures.

IX. TROUBLESHOOTING

Tools Required:

• Screwdriver 8" or longer with plastic handle

• Volt-Ohm-Meter — used to check low voltage input

(115 VAC) and continuity (OHMS)

• High Voltage Probe — used to check high voltage power

supply. Range: from 0 to 15 KV DC

• Amp Probe

Troubleshooting Procedures

High voltage problems can generally be isolated by

referring to the indicator light. When the light illuminates,

high voltage is present at the ionizer and collector

terminals of the power pack.

If the indicator light illuminates but there is no high voltage

present at the ionizer or collector, the difficulty is caused

by an open circuit in the high voltage path. Test for high

voltage is made by depressing push-to-test buttons

individually. This should short out the circuit, causing the

indicator light to go out, thus verifying electrical

continuity.

If light does not go out, check for the presence and

condition of high voltage contact springs, hardware and

(red) high voltage lead wires. See Figure 9 for proper

alignment.

If the indicator light is out, proceed to isolate the difficulty

as follows:

Open the access door and depress the interlock switch.

Check for presence of high voltage at cell and ionizer

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