Troubleshooting – Sloan 952 Royal Concealed 900 Hydraulic Series User Manual

Page 7

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7

PUSH BUTTON ACTUATOR ASSEMBLY

1. Push Button Leaks.

The actuator cartridge has an accumulation of lime or its seals are damaged or worn.
Replace with a new HY-32-A cartridge.

2. The flushometer does not flush and a small amount of leakage is visible

below the valve.
A. Foreign material lodged in the cartridge. Remove the cartridge and inspect for

foreign material. Clean under running water.

B. The actuator cartridge has an accumulation of lime or its seals are damaged or

worn. Replace with a new HY-32-A cartridge.

C. Plastic tubing is installed incorrectly. Install plastic tubing correctly

(see Steps 2 and 5).

ACTUATOR CARTRIDGE REMOVAL

Plastic Push Button Actuator Removal:
(1) Loosen the setscrew in the button flange and remove the button, flange, and

spring from the actuator body.

(2) Unscrew the cartridge from the actuator body.

NOTE: An automatic check valve in

the actuator body allows removal of the cartridge without turning off the water.

Metal Push Button Actuator Removal:
(1) Remove the button or actuator assembly from the wall or fixture.
(2) Disassemble the flange or button assembly from the actuator body.
(3) Unscrew the cartridge from the actuator body.

NOTE: The metal Push Button is designed to be vandal-proof and must be
removed from the wall or fixture for service.

FLUSHOMETER ACTUATOR ASSEMBLY

1. The flushometer does not flush or flushes only once and will not flush a

second time when the button is pushed.
A. The plunger is lodged in the actuator cartridge or the plunger bypass hole is

clogged. Remove actuator housing and cartridge from the flushometer. Clean
under running water. If cartridge parts are worn, deteriorated or limed up and
problem persists after cleaning, replace with a new HY-83-A cartridge.

B. Plastic tubing is installed incorrectly. Install Plastic Tubing correctly

(see Steps 4 and 6).

REMOVAL OF THE ACTUATOR FROM THE FLUSHOMETER:
(1) Turn off water at the control stop.
(2) Unscrew the actuator housing coupling nut from the flushometer.
(3) Remove the actuator housing from the flushometer. The tubing connections can be

left intact.

(4) Carefully remove the actuator cartridge from the flushometer body to prevent

the actuator from abrupt separation due to expansion of an internal spring. If the
actuator cartridge is lodged in the flushometer body cavity, gently grip the exposed
portion of the cartridge with a channel-lock pliers and rotate back and forth to
loosen the o-ring seal.

(5) Carefully separate the actuator housing to reveal the spring and plunger.

FLUSHOMETER SERVICE

1. Flushometer does not function (no flush).

A. Control stop or main valve is closed. Open control stop or main valve.
B. Relief valve is worn. Replace Royal performance kit (Royal) or inside parts kit

(Regal XL).

2. Volume of water is not sufficient to siphon fixture.

A. Control stop is not open wide enough. Adjust control stop for desired delivery of

water volume.

B. Urinal flushometer parts installed in a closet flushometer. Replace inside urinal

flushometer parts with proper closet flushometer parts.

C. Incorrect dual filtered fixed bypass diaphragm assembly (Royal) or inside parts kit

(Regal XL) is installed in flushometer; for instance, Urinal assembly inside a closet
flushometer, or Low Consumption assembly inside a higher consumption fixture.
Determine the flush volume required by the fixture and replace Royal Performance
kit or inside parts kit. Use valve label and markings on fixture for reference.

D. Water supply volume or pressure is inadequate. If no gauges are available to

properly measure supply pressure or volume of water at the flushometer, then
remove the Relief Valve from the dual filtered fixed bypass diaphragm assembly
(Royal) or Inside Parts Kit (Regal XL), reassemble the flushometer and completely
open the Control Stop. If the fixture siphons, more water volume is required.

For Royal — Install a higher flushing volume Royal Performance Kit.

For Regal XL — If a 3.5 gpf Inside Parts Kit is installed in the flushometer, then
first flip the refill head (under the diaphragm) to obtain a 4.5 gpf volume. If this
volume is still inadequate, remove the Flow Ring from the Guide to obtain a 6.5
gpf Kit. If additional flow is still required, try a Low Pressure Guide Kit A-175-A
(#0301104).

IMPORTANT — LAWS AND REGULATIONS REQUIRING LOW CONSUMPTION
FIXTURES (1.6 GPF/6.0 LPF WATER CLOSETS AND 1.0 GPF/3.8 LPF
URINALS) PROHIBIT THE USE OF HIGHER FLUSHING VOLUMES.

If the fixture does not siphon or if a Low Consumption flush is required, steps must

be taken to increase the water supply pressure and/or volume. Contact the fixture
manufacturer for minimum water supply requirements of the fixture.

3. Flushometer closes off immediately.

A. Ruptured or damaged diaphragm. Replace Royal performance kit (Royal) or inside

parts kit (Regal XL).

B.

For Regal XL — An enlarged bypass orifice from corrosion or damage. Replace
Inside Parts Kit.

4. Length of flush is too short (Short Flush).

A.

For Regal — The diaphragm assembly and guide assembly are not hand tight.
Screw the two assemblies hand tight.

B.

For Regal XL — An enlarged bypass orifice from corrosion or damage. Replace
Inside Parts Kit.

C. Dual filtered diaphragm assembly (Royal) or inside parts kit (Regal XL) is damaged.

Replace Royal Performance Kit or Inside Parts Kit.

D. Incorrect dual filtered diaphragm assembly (Royal) or Inside Parts Kit (Regal XL) is

installed in flushometer; for instance, Urinal assembly inside a closet flushometer,
or Low Consumption assembly inside a higher consumption fixture. Determine the
flush volume required by the fixture and replace Royal Performance Kit or Inside
Parts Kit. Use valve label and markings on fixture for reference.

5. Length of flush is too long (Long Flush) or continuous.

A.

For Royal — Metering bypass hole in diaphragm is clogged. Remove the dual
filtered fixed bypass diaphragm assembly. Remove the primary and secondary
filter Rings from the diaphragm and wash under running water. Replace Royal
performance kit if cleaning does not correct the problem.

B.

For Regal XL — Relief Valve (A-19-A) is not seating properly or bypass orifice is
clogged. Disassemble the working parts and wash thoroughly.

NOTE: SIZE OF THE ORIFICE IN THE BYPASS IS OF UTMOST IMPORTANCE
FOR THE PROPER METERING OF WATER INTO THE UPPER CHAMBER OF THE
FLUSHOMETER. DO NOT ENLARGE OR DAMAGE THIS ORIFICE. REPLACE
INSIDE PARTS KIT IF CLEANING DOES NOT CORRECT PROBLEM.

C. Supply line water pressure has dropped and is not sufficient to close the valve.

Close control stop until pressure is restored.

D. Dual filtered diaphragm assembly (Royal) or inside parts kit (Regal XL) is damaged.

Replace Royal performance kit or inside parts kit.

E. Incorrect dual filtered diaphragm assembly (Royal) or inside parts kit (Regal XL) is

installed in flushometer; for instance, urinal assembly inside a closet flushometer,
or low consumption assembly inside a higher consumption fixture. Determine the
flush volume required by the fixture and replace Royal performance kit or inside
parts kit. Use valve label and markings on fixture for reference.

F. White closet relief valve has been used in a urinal flushometer. Replace closet

relief valve (A-19-AC) with black urinal relief valve (A-19-AU).

G. Inside cover is cracked or damaged. Replace the inside cover (A-71).
H. Conditions in the piping system may contribute to the noise. A degree of high

pressure in the piping may be relieved by adjustments to control stop. Other noises
created by loose pipes, lack of air chambers, inadequate pipe sizes, etc., are
problems that must be discussed with the building engineer.

6. Chattering noise is heard during flush.

A. Inside cover is damaged. Replace inside cover (A-71).
B.

For Regal XL — A-156-A segment Diaphragm has been installed upside-down.
Reposition the segment diaphragm properly (see markings on the diaphragm).

For more information concerning Royal and Regal XL flushometers,

consult Sloan Hydraulic Valve Repair and Maintenance guides.
You may also wish to contact your local Sloan Representative.

If further assistance is required, please contact the Sloan Technical Support at:

1-888-SLOAN-14 (1-888-756-2614)

TROUBLESHOOTING

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