Thrush AHF User Manual

Manual # OMAV2-SUMP1

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High Performance Air & Dirt Separators

Manual # 9636-1230 Rev. A

Operation&MaintenanceManual

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340West8thStreet

Peru,IN46970

PH:765‐472‐3351

FX:765‐472‐3968

www.thrushco.com

COPYRIGHTTHRUSHCO.,INC.2014

Manual #9636-1230

Thrush Co.

Table of Contents

Section No. Description Page No.

1 General Product Information 1
2 Safety Information/Warnings 2
3 Component Identification and Information 3-6
4 Installation and Operation 7-12
5 Maintenance Information 13
6 Parts Ordering/Contact Information 14

THIS DOCUMENT CONTAINS INFORMATION THAT THRUSH CO. DEEMS CONFIDENTIAL AND PROPRIETARY.
THE BASIC THRUSH CO. PRODUCT REVEALED IN THIS DOCUMENT IS PATENTED, AS ARE CERTAIN
PRODUCT COMPONENTS. IN CONSIDERATION FOR THE RECEIPT OF THIS DOCUMENT, RECIPIENT
AGREES NOT TO REPRODUCE, COPY, USE OR TRANSMIT THIS DOCUMENT OR THE INFORMATION
CONTAINED HEREIN, IN WHOLE OR IN PART, OR TO PERMIT OTHERS TO DO SO, FOR ANY PURPOSE
WITHOUT FIRST OBTAINING THE EXPRESS WRITTEN PERMISSION FROM THRUSH CO. RECIPIENT
FURTHER AGREES TO SURRENDER THIS DOCUMENT UPON REQUEST BY THRUSH CO.

COPYRIGHT THRUSH CO., INC. 2014

Thrush Co.

Manual #9636-1230

1.1 Overview

The Aar-O-Vent® is another product in the long line of innovations from Thrush Co.,INC.
It has been carefully assembled and factory tested to provide years of trouble-free
service. This manual provides information to install, operate, service and maintain the
Aar-O-Vent. Multiple Aar-O-Vent models are covered (Figure 1-1). There are three main
types of Aar-O-Vent: Air Separator (Air Only), Dirt Separator (Dirt Only), and combination
Air & Dirt Separator.

Section 1

General Product Information

Model Designation

Air Separator

ASF - Standard Velocity Air Separator

AHF - High Velocity Air Separator

Dirt Separator

DSR - Standard Velocity Dirt Separator

with Removable Cover

DHR - High Velocity Dirt Separator

with Removable Cover

DSF - Standard Velocity Dirt Separator

with Fixed Cover

DHF - High Velocity Dirt Separator

with Fixed Cover

(L) AFTER ANY MODEL # DENOTES "LESS OPTIONS"

Figure 1-1 Overview

Air & Dirt Separator

SVR - Standard Velocity Air & Dirt Separator

with Removable Cover

HVR - High Velocity Air & Dirt Separator

with Removable Cover

SVF - Standard Velocity Air & Dirt Separator

with Fixed Cover

HVF - High Velocity Air & Dirt Separator

with Fixed Cover

Thrush Co.

Manual #9636-1230

Section 2

Safety Information/Warnings

2.1 Safety Information and Warnings

Every practical safety feature has been incorporated into the design and manufacture of
the Thrush Co. Aar-O-Vent. If questions are not answered by this manual, or if specific
installation, operation, and/or maintenance procedures are not clearly understood,
contact your local representative before proceeding. Personnel must, at all times,
observe all safety regulations while performing maintenance or repairs.

All installation, operation, and maintenance procedures should be performed by
qualified, experienced and well trained personnel. The potential exists for severe
personal injury if proper procedures are not followed.

Depending on the size of Aar-O-Vent, the bundle can be quite heavy. It is

recommended that supports be used when removing the head and bundle. Once

all bolts have been removed from the head, the head and bundle are free to drop.

Risk of severe personal injury and/or property damage may occur if the bundle

and head are not supported.

5” and larger Aar-O-Vents have lift lugs to aid in lifting and locating the unit. The

lift lugs are not intended to be used to support the Aar-O-Vent during operation.

Adequately sized and spaced supports/hangers should be used to prevent

damage or strain on the system piping.

The Aar-O-Vent is not designed to be used as a make-up water inlet point. Using

any of the connections for make-up water would impede proper operation and

void the warranty.

System water over 100°F can be very hazardous. Keep flow away from the body

when flushing the unit. Failure to do so could result in serious bodily injury or

property damage.

Thrush Co.

Manual #9636-1230

3.1 Component Identification

The following paragraphs contain functional descriptions for each of the major
components of a Thrush Co. Aar-O-Vent. This manual provides information for multiple
Aar-O-Vent models. All the components listed have the same functional purpose in each
model.

Section 3

Component Identification and Information

LIFT LUGS (2)
(5" & LARGER)

COALESCING MEDIUM
(NOT SHOWN)

(2/4) SIGHT GLASS

ASME NAMEPLATE

REMOVABLE HEAD

AIR ELIMINATOR

SKIM VALVE

*

(2) GAUGE TAP

*

*

OPTIONAL EQUIPMENT

*

BLOW DOWN VALVE

Figure 3-1 Components