AMES 982GD 매뉴얼 - 페이지 6

{카테고리_이름} AMES 982GD에 대한 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. AMES 982GD 12 페이지. Pump control control valve with backpressure feature

페이지 인쇄

Troubleshooting Guide

Issue

Possible Cause

Main Valve will not

Closed isolation valves in pilot system.

open

Insufficient supply pressure.

Main valve stem assembly corroded/

damaged

Blockage in pilot system.

Improperly configured opening speed

control.

Pressure Sustaining Control not oper-

able

Main Valve will not

Closed isolation valves in pilot system

Diaphragm is damaged

Main valve stem assembly corroded/

damaged.

Blockage in main valve.

Worn/damaged valve seat.

Improperly configured closing speed

control.

Solenoid will not

Possible Cause: Low or no voltage

actuate

Manual operated is engaged

IOM-A-ACV-982_682 2115

Corrective Action

Check isolation valves, ensure

open.

Check upstream pressure.

Inspect stem assembly, clean/

replace if necessary.

Inspect & clean any installed

pilot system strainers, check

orifice/speed controls for

blockages.

Adjust opening speed control

to verify functionality, adjust as

required.

Rebuild or replace Pressure

Sustaining Control

Check isolation valves, ensure

open.

Conduct diaphragm seal test,

repair and replace if necessary.

Inspect stem assembly, clean/

replace if necessary.

Perform freedom of movement

test; if valve does not close,

disassemble and remove

blockage.

Perform seat sealing check;

disassemble and inspect/re-

pair seat if required.

Adjust closing speed control

to verify functionality, adjust as

required.

Check voltage at the solenoid

connection, insuring that it has

the minimum of 85% of the

coils rated voltage.

Turn manual operator counter-

clockwise to disengage

EDP# 1917092

Notes

Depending on water

source, supply pressure

may not be controlled by

valve operator.

Standard setting for open-

ing speed control is 1 1/2

- 2 1/2 turns open from full

closed position. Can be

adjusted in field.

Standard setting for

closing speed control is

11/2 - 21/2 turns open from

full closed position. Can

be adjusted in field.

Should be performed by

licensed electrician