Honeywell Braukmann EA79 User manual

epvell Braukmann
The Honeywell Braukmann EA79 In.dustrial
Air Ventpurgesairfrom highpressuremainsand
equipment in hot or cold closed water syste,ms.
Includes built-in shutoff valve for servicing with-
out system shutdown. For use with water systems up 250” F [!20” Cl.
Removable float/valveassemblyforeasy servicing.
Includes safety drain connection and vent cap with
leakage guard.
314 in. NIT male pipe thread with l/2 in. NPT
female pipe thread connections.
Maintains quiet and efficient operation
Brass shell construction
Internal parts made of corrosion-resistant and
chemical-resistant materials for use with water
systems containing glycol, mincial oils, or petro-
leum-based oils.
CQNTl?NTS
Specifications .................................................2
Ordering tnformatimi ....................................2
installation .....................................................3
Operation .......................................................4
service.. ................. ......................................... .4
Troubleshooting .............. ...............................5
C. H. . IO-92 . Otloneyvell Inc. 1992 . FormNumber62-3034

EA79
SPECiFlCATlONS 0 ORDERING INFORMATION
MATERIALS OF CONSTRUCTION:
Body: Brass.
Cover ring: Brass.
Float, valve lever and cover: Engineered thermoplastics.
Seal disc and rings: Synthetic rubbers.
Fig. I-EA79 dimensions in in. [mm].
OPERATING RATINGS:
Maximum Pressure:150psi
Maximum Temperature:250” F 1120”C]
SAFETY RATINGS:
Maximum Pressure:450psi
Maximum Temperature:250” F [120° C]
CONNECTIONS: 314in.NPT malepipethreadwith l/Z in.
NE femalepipe thread.
DIMENSIONS: Referto Fig. 1.
CAPACITIES: Referto Fig. 2.
Fig. Z-EA79 flow capacities, with leakage guard
cap.
NOTE: Capacityindicatedisfor devicewith leakageguard
capcorrectly installedandoperational.Additional capac-
ity may beobtainedby removing theleakageguardcap
andinslallingaconnectionbetweenthe vem discharge
anddrain usingQl22AlKll SafeWasteConnector.
Ordering Information
HoneywellBraukmannCustomerService
1985DauglasDriveNorth
INDUSTRIAL AIR VENT:
Description
Industrialauomaticativent
ACCESSORIES:
ModelNumber
EA79AlOO4
Minneapolis,Minesora55422.3992
[phone](EasremUS) sak WasLCC”nneCLOrfor cannecling
[phone]~eskm US)
3. 01fax you orderto 1-800~356-0149.
2

EA79
INSTALLATION
VI’I-IEN INSTALLING THIS PRODUCT...
1. Read these inslructions carefully. Failure to follow
them could dama~ the rxoduct or cause a hazardous
- .
c0ndi1i0n.
2. Check the radngs given in the instructions and on
the product LOmake sure lhe product is suilable for your
application.
3. 1r1s~alle.rmust be a uaiwd, experienced sew&x
technician.
4. Afrer installalion is complele, check ou( product
operation as provided in these instmctions.
Do nol use tools LOadjust Ihe EA79 or damage
to vent may resuh Use hands only to ad.;usi
venl. A wrench may be used only on hex during
mstallation.
LOCATION
Install Ihe EA79 on the positive side of the circulaloi-
pump at the poini when alr will accumulate. This is usuall)
Lhehigh point of the supply or ihe return main in Ihe sysiem
as shown in Fig. 3.
Fig. 3--install EA79 at high point in system
INSTALLATION
I. Fit EA79 vent in piping at a location as specified in
the Localion section.
2. Turn EA79 until venl fits tightly on piping. USC a
wrench to securely tighien hex.
3. If safkly drain connection is desired, inswll a pipe
between vent discharge and drain using Q122AlOOl %I~?
waste Conmclor.
4. Make sure thal Lhcred vent cap is securely Light, and
thal the valve is in the closed position by luming vent body
clockwise. See Fig. 4. Use hands only to avoid damaging
the vmt.
5. Wiih lhe valvein theclosed position, flush the system
as required to remove din, debris and contaminanis.
6. Fill the system with the appropriate solution.
7. Operate he EA79 by turning the air vent body coun-
vxckxkwise to tie open position. Use hands only, see Fig. 4.
8. Make pure the red vent cap is Ughlened all lhe way
to the slop posilion for proper leakage guard operalion.
Use hands only to tighten.
Fig. 4-Turn vent body counterclockwise to
open or clockwise to close.
3 62.3034

A79
OPERATION .a SERVICE
TheEA79 operatesasfollows:
Owning theair venl (turning valve body counterciock-
wise)exposestheEA79 to the system.Water and air may
enterthevent chamber.Thefloat will Mallthroughanyair in
thechamber.ThisopensLhcvemseal.
Theredvcn~capallowsair~opassLhroughtheopcnvent.
As the air isreleasedthroughthe vent cap, waterreplaces
iheairinLheventchalnberandthefloatrises.Thisclosesihe
ventseat.Whenadditionalair entersthevent chanber, Lhc
operationrepeats.
If thevent scatremainsopen,waterwill risethroilghthe
vcnl aId causetheswellingdisksinsidetie redcaptoclose
“SCthevem.Closingiheair vent (turningvalve body clwk-
wise)isolaicstheEA79 from lbesyslem,allowingservice.
TheEA79 may behot dueLOsys~cm~em~mturc
extremes.USCcautionwhenadjustingvent toprc-
vent burninghands.
TheEA79 maybecomeaccumulatedwith dirt in theseat
arca of Ihe float assembly,which may causethe vent LO
malfunction.Periodiccleaningisrecommendedto prevent
thevent Crammalfunctioning.
NOTE: ThcEA79 maybeservicedwithoutdcpressurizing
or draining the system.
To clean the seat arca, proceedasfollows:
1. Turn thevent body clockwiseto theclosedposition,
isolatingthevent from thesystem.See Fig. 4.
2. Removethe float assemblyby unscrewingtheouter
ring at the top of Ihe body and lifting up the black cover
assembly.SeeFig. 5.
3. Cmhllly cleantheseatareaof any dimor &&is.
Donotbendspringonfloat assemblyordamageLO
theYentmay result.
4. Carefully clean any dirt or debrisfrom inside the
vent chamber.
5. ReplaceLhefloat assembly,making surethat the0
ring isseatedproperly (seeFig. 5).
6. Replaceblack cover assemblyonair venl body.
7. Using handsonly, replaceouter ring, turning until
handtight.
8. OperateLheEA79bytumingtheairvcntbodycounler.
clockwiseLOIheopenposition.Usehandsonly. SIX Fig. 4.
9. Make sure the red vent cap is tightened all the way
LOthe stop position for proper leakageguardoperation.
Usehandsonly to tighten.
Fig. S--En79 construction.
4

EA79
TROUBLESHOOTI~
The EA79 may be hot due LOsystem wnpemture
extremes. Use caution when adjusting vent to pre-
vent burning hands.
62.3034

Honeywell lhaukmann
Honeywell Inc.
1985 Douglas Drive North
Golden Valley, Minnesota 55422
FhlCd in U.S.A.