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Issue

Possible Cause

Corrective Action

Notes

Main Valve will not 
open

Closed isolation valves in pilot system.

Check isolation valves, ensure 
open. 

Insufficient supply pressure.

Check upstream pressure.

Depending on water 
source, supply pressure 
may not be controlled by 
valve operator.

Main valve stem assembly corroded/
damaged

Inspect stem assembly, clean/
replace if necessary.

Blockage in pilot system.

Inspect & clean any installed 
pilot system strainers, check 
orifice/speed controls for 
blockages.

Improperly configured opening speed 
control. 

Adjust opening speed control 
to verify functionality, adjust as 
required.

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. 

Main Valve will not 
close

Closed isolation valves in pilot system

Check isolation valves, ensure 
open. 

Diaphragm is damaged

Conduct diaphragm seal test, 
repair and replace if necessary. 

Main valve stem assembly corroded/
damaged.

Inspect stem assembly, clean/
replace if necessary.

Blockage in main valve.

Perform freedom of movement  
test; if valve does not close,  
disassemble and remove  
blockage.

Worn/damaged valve seat. 

Perform  seat sealing check; 
disassemble and inspect/re-
pair seat if required.

Improperly configured closing speed 
control.

Adjust closing speed control 
to verify functionality, adjust as 
required.

Standard setting for 
closing speed control is 
11/2 - 21/2 turns open from 
full closed position. Can 
be adjusted in field.

Solenoid will not 
actuate

Possible Cause: Low or no voltage

Check voltage at the solenoid 
connection, insuring that it has 
the minimum of 85% of the 
coils rated voltage.

Should be performed by 
licensed electrician

Manual operated is engaged

Turn manual operator counter-
clockwise to disengage

Troubleshooting Guide

 

6          IOM-A-ACV-960-15-17_660-15-17   2115 

EDP# 1917064 

© 2021 Watts

IOM-A-ACV-960-15-17_660-15-17   2115 

EDP# 1917064 

© 2021 Watts         7

Содержание AMES 960GD-15-17

Страница 1: ...ting the Altitude Controls 3 Maintenance Schedule 6 Trouble Shooting Guide 6 Valve Disassembly Instructions 8 ACV Schematic 11 Local building or plumbing codes may require modifica tions to the inform...

Страница 2: ...oper procedures be followed Time must be allowed for the valve to react to adjustments and the system to stabilize The objective is to bring the valve into service in a controlled manner to protect th...

Страница 3: ...will need to be bled off the valve cover during startup The ACV includes a bleed valve use a flat head screwdriver to slowly open the valve See Figure 1 STEP 4 Pressure the line by opening the upstre...

Страница 4: ...downstream isolation valve STEP 7 If the valve remains closed as indicated by the stem position in the position indicator See Figure 2 and the tank level is known to be below the desired level SLOWLY...

Страница 5: ...be turned OUT counter clockwise an additional to turn This will lower the shut off level slightly below the tank over flow mark eliminating any wave action discharge from the over flow pipe See Figure...

Страница 6: ...cification sheets for approximate cover capacity A continuous flow of water from the open port indicates a damaged diaphragm or loose disc diaphragm assembly Disassemble valve and replace diaphragm or...

Страница 7: ...valves ensure open Diaphragm is damaged Conduct diaphragm seal test repair and replace if necessary Main valve stem assembly corroded damaged Inspect stem assembly clean replace if necessary Blockage...

Страница 8: ...e cover nuts and washers 3 Remove the cover If cover is not free to be removed loosen it by tapping upward along its outside edge with a dull cold chisel pic tured above a Large valves may require the...

Страница 9: ...h or by using a Mineral Dissolving Solution Inspect parts for wear and replace if necessary 7 Inspect valve seat If seat is not damaged removal is not necessary Valve seats 6 and smaller are threaded...

Страница 10: ...in a crossing pattern to ensure even distribution Test the Disc and Diaphragm Assembly for smooth travel by following the Freedom of Movement Test procedure in previous section 11 Test the integrity o...

Страница 11: ...Steel 9 Stem Washer ASTM A276 304 Stainless Steel 10 Diaphragm Washer ASTM A536 65 45 12 Epoxy Coated Ductile Iron 11 Diaphragm Buna N Nitrile 12 Disc Retainer ASTM A536 65 45 12 Epoxy Coated Ductile...

Страница 12: ...sulting from labor charges delays vandalism negligence fouling caused by foreign material damage from adverse water conditions chemical or any other circumstances over which the Company has no control...

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