Honeywell VP513A Manuale utente

Honeywell

INGLE

SEATED

GENERAL

These instructions include service and repair informa-

tion for the VP5

13A

and B pneumatically operated,

high-pressure, single-seated water valve.

SPECIFICATIONS

MODELS:

VP5

13A

(normally open)

VP5

13B

(normally closed)

tubing),

3/4

in. (nominal for

7/8

in.

O.D.

copper

tubing).

VP513B:

1/2

in. (nominal for

5/8

in. O.D. copper

tubing).

NOMINALVALVE BODY RATING: 250 lb/in2(1724

kPa). CAPACITY INDEX (Cv):

VP5 13A: 1.0, 1.6, 2.5 or 4.0 Cv.

MAXIMUM BODY TEMPERATURE: 250 F (121 C). VP5 13B: 1

.0,

1.6, or 2.5 Cv.

SIZE:

MAXIMUM SAFE OPERATOR AIR PRESSURE: 2.5

VP513A:

1/2

in. (nominal for

5/8

in. O.D. copper lb/in2(172

kPa).

APPLICATION

The VP5 13A (normally open) and VP5 13B (normally

closed) water valves provide proportional control of unit

air conditioners using hot and/or cold water as the con-

trolled medium.

OPERATION (See Fig. 1)

An increase in control air pressure from the system

temprature controller proportionally drives the VP5 13A

closed or the

VP513B

open, modulating the medium’s

flow through the coil.

CONTROL

Al R

~-t/-----i

2697

Fig. 1. VP5 13A Typical Operation

MLF

TAB: ll.D.4.

Rev.

10-79

Form No

75-

1707

Commercial

Bldg Group

MAINTENA

CLEANING INSPECTION

Remove all dirt and grease accumulation from

under-

Inspect top of packing nut around stem for signs of

side of operator and around packing nut and stem. Use leakage. Repack the valve if necessary. See REPAIR,

solvent if necessary. Packing Replacement

CAUTION

Do not allow solvent to come into contact with

diaphragm, as it can cause serious damage.

Work in well ventilated room to prevent breathing

toxic fumes of solvent.

TROUBLESH

TING

1. Observe room tempera

setting up or down to

perature.

ture and move thermostat

simulate high or low

tem-

2. Check air pressure at valve and water flow. Normal

conditions are shown in Table 1.

a. [fair pressure is opposite normal condition, check

thermostat operation and calibration. When air

pressure is lower than normal, check for proper

air supply pressure and for air leaks in piping or

diaphragm (seeREPAIR, Diaphragm Replace-

ment). Replace Series 1models with new oper-

ators or replace both diaphragm and cover.

b. If

air

pressure is cowect and water is not

flowing

when it should be, check for pump operation,

air lock, closed hand valves, or stuck valve.

c. If air pressure is correct

and

water is flowing when

it should not be, check for a bad disc or seat,

something lodged under the disc, or water pressure

exceeding valve close-off rating.

Replace stems and discs by disassembling valve (see

REPAIR, Stem and Disc Holder Replacement). Replace

seats on VP5

13B

valves by using special tool, Part No.

CCM3833. Replace the entire valve body if the seat on

a VP5

13A

valve is defective.

3. Visually inspect the valves for leakage at stem.

repacking is necessary, see REPAIR, Packing Replace-

ment.

Table 1 -Normal Operating Conditions of

VP5

134

Application Room Temp.

Air Pressure Water Flow

Model No.

Hot W.

Ch. W.

High

Low

Flow No. Flow

~--~-

VP5

13A

(N.O.)

VP51 3B (NC,)

XXXX

XXX

XXXX

75-1707

DlAPHRAGM

REPLACEMENT (See Fig. 2):

1. Shut down air supply to operator.

2. Using a

-. screwdriver, draw the valve stem retainer

from the locked position.

3. Back off setscrews and lift operator from

valve. 30 NOT scratch or bend valve stem.

4. Remove the two allen

head

cap screws in the base of

The main spring

care to prevent stri is under compression. Use

Remove the operator cover n nting screws

Remove defective diaphragm

6. Install new diaphragm and reassemble. Be careful not

to pinch or cut the new diaphragtn during reassembly.

/~ACTUATOR

Top

ISTEM

LOCKSL

,----

(H_’

SPRlNG

CUP

SPIDER

’

(22

PLUG

2698

Fig. 2. Details of

VP513A

PACKING REPLACEMENT (See Fig. 2)

NOTE: Shut down the system when repacking the

VP5 13B models. The VP5 13A can be repacked

without the system shutdown by pulling the

valve stem all the way up allowing the O-ring

to sealoff any leakage through the

CAUTION

The

controlled

medium pressure

holds

the O-ring

seal in

place.

DO NOT depress valve stem while

repacking.

5. .

With the operator removed, inset-r a nail, awl. pin,

or similar instrument into the

1/16

in. diameter hole

near the top of the valve stem, Prevent stem from

turning and remove the stem

button

,Impor-

tant: DO NOT remove the setscrew from the

top

the button.

Pull s up and remo

ing spacers

See Fig. 3 for exploded view of packing

components.

Inspect valve stem

this

time

to dctermine

its

condi-

tion.

Glean spacers, packing nut, spring and

exposed

por-

tion

of stem with

tricloroethylene

or similar solvent.

Lubricate stem, spring, spacer and each new

packing

ring with lubricant, Part No. 309535.

Reassemble packing components.

CAUTION

DO NOT force the new packing rings overthe

threaded end of the valve stem. Carefully screw

them over the threads to avoid damageto thc

ring.

1_______1_-

STEM

BUTTON

PACK I

PACKING RING

PACKING

RING

SPACER

PACKING

RING

SPACER

BONNET

2519

Fig. 3. Packing Assembly

75-1707

STEM AND DISC HOLDER COMPONENT REPLACE-

to defective components. Be sure O-ring seal is in

MENT

(See

Fig. 4)

position on valve stem.

Shut

down system (supply air and control medium).

Inspect integral valve seat (Fig. 2 ,

). If defec-

tive, replace complete valve.

Replace parts as required (see PARTS LIST).

Remove operator and packing components as previ-

ously discussed.

Remove bonnet (Fig. 2.

4. VP5

13A

models:

5. VP5

13B

models:

a. Remove valve seat with special tool, Part No.

CCM3833, and lift out stem assembly.

b. Replace components as required by removing disc

holder mounting screw. See PARTS LIST for parts

ordering information.

a. Remove stem and disc holder assembly from valve

body.

b. Remove throttling plug (Fig. 2,

6. Reassemble and start up system. Observe operation

) for access through several cycles.

Fig. 4. Details of

VP513B

75-

1707

VP5 13A

SCREW-8-32

1/4

W/LOCKWASHER

6-32 X

1/2

FIL HD

SERIES 2-3

NONE

COVER NONE

14003572-001 14003572-001

312760

DIAPHRAGM

312760

CUP, DIAPHRAGM

SPRING, STABILIZER

RETAINER, STEM

CUP, SPRING

3-10 9-13

(62-90)

RANGE:

LB/IN

(kPa)

(21-69)

SPRING

WASHER, RETAINER

315413

SPIDER-UPPER

SPIDER- BASE

SCREW

1/4-20

3/8

SOCKET SET (2)

SCREW

1/4-20

3/4

SOCKET HD (2)

STANDARD HARDWARE ITEM: OBTAIN LOCALLY WHEN POSSIBLE

WHEN REPLACING THE SERIES 1 OPERATOR COVER AND/OR DIAPHRAGM, UPDATE TO A

SERIES 2 AND 3 VERSION COVER AND DIAPHRAGM

WHEN REPLACING THE SERIES 1 UPPER SPIDER, UPDATE TO A SERIES 2 AND 3 UPPER

SPIDER, COVER, DIAPHRAGM AND MOUNTING SCREWS (4)

X505

Fig. 5.

VP5

13 Parts List.

575-1

707

*SCREW

1/4-28

X 3/8 SOCKET SET

------+

k?d

BUTTON

PACKING NUT

.+-----PACKING

(3)

+T-

SPACER

PACKING (2)

-SPRING PACKING

BONNET

VP513A

VP513B

@+--RING,

SEAL

PLUG

-STEM

.+-----

STEM AND

HOLDER ASSY

SPRING

SEAT

VP513B1004

B1012

OTHER

VP513B

-DISC

O-RING

WASHER

DISC HOLDEF

SCREW

BODY

-+-----

PLUG

1/2"

VALVE

14003228-001

313094SERIES 1

313102 SERIES 2 315936

315800A

315937

1.0 CV

315972

1.6 CV

315056 315971

25CV 313265 315938

r\/

‘STANDARD HAPDWARE ITEM. OBTAIN LOCALLY WHEN POSSIBLE.

NOTE PARTS FOR OBSOLETE VALVES (ANGLE PATTERN AND

1/2

IN OD) ARE NO

LONGER AVAILABLE SUBSTITUTE VP527A FOR SMALL CV S.T VALVES.

X506

Fig. 6.

VP5

13 Parts List (Continued).

HONEYWELL*MlnneapolIs,

Minnesota

55408

Scarborough,

Ontario

Subsidiaries

and Affiliates Around the World..Printed in U.S.A.

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