Publicidad
S59-2005
Maintenance
Check the piston for free and smooth
movement
1. Remove the handle and escutcheon to expose
the valve assembly.
2. Loosen the two screws that hold the valve
assembly in the valve body.
3. Remove the valve assembly.
4. Gently pry the retainer off the valve assembly.
This will separate the cap and liner exposing
other components.
5. Disassemble components.
6. Push in on the piston with your finger (the
piston should move freely). If not, the piston
and liner assembly needs to be cleaned.
• any cleaner suitable for brass and stainless
steel may be used (if cleaning with suitable
cleaner is not sufficient to remove debris, a
400-grit sandpaper may be used to polish
and hone the piston and liner).
7. Reassemble the valve assembly in reverse
manner.
8. If, after a thorough cleaning, the piston does
not move freely, the piston/liner assembly must be replaced. Order a new Piston/Liner Assembly as specified in the Service Guide.
Check the thermostat for proper operation
1. At room temperature (80° F or less), remove the valve assembly from the valve body as outlined in the previous section detailing piston movement.
2. Place the thermostat into a small container filled with 115° water. The thermostat's pushrod should pop out of the thermostat approximately 1/10".
3. If the pushrod does not pop out, the thermostat must be replaced (it cannot be repaired). Order a new thermostat kit as specified in the Service
Guide.
Adjust the temperature
1. Turn on the water and let it run until 2.5 – 4 GPM is flowing through the valve.
2. Remove the shower valve handle screw to expose the set screw inside the valve stem.
3. Using a 3/32" hex-head Allen key, turn the set screw counterclockwise to increase the temperature or clockwise to decrease the temperature.
4. When the adjustment is complete, replace the handle and turn off the water.
Troubleshooting
NOTE: Before attempting to troubleshoot the valve or disassemble the components, check for the following conditions:
• make sure that the stop check valves are fully open and that all inlet and
outlet shut-off valves are open.
• make sure that the hot and cold inlet pipes are connected properly, and that there are no cross-connections or leaking stop/check valves.
• check the hot water heater output to make sure that it is at least 15° F above the set temperature.
Be sure to close the appropriate shut-off valves prior to disassembly of the valve and reopen the valves after inspection and repair is complete.
Problem: Limited water flow
Cause: The stop/check sections of the valve do not move freely.
Solution:
Dirt and debris have collected on the stop/check valve seat limiting the movement of the stop/checks. The stop/checks should be
disassembled and cleaned. The components may be brushed with a small wire brush to remove debris. If the stop/check valves need to be
replaced, contact your Bradley representative and ask for Stop/Check Valve S27-102.
Problem: External leaks in the system
Cause: Either the NPT joints or O-rings have been damaged.
Solution:
Replace the NPT joints and/or O-rings where necessary. For replacement of the O-rings, order the O-ring/Seat kit as specified in the
included Service Guide.
Problem: Improper water temperature or temperature fluctuation
Cause: Thermostat is slowly failing or not working at all.
Solution: See "Check the thermostat for proper operation" and follow the step-by-step procedure.
Cause: Valve temperature is not properly set.
Solution: See "Adjust the temperature" and follow the step-by-step procedure.
Cause: Inlet supply line to the mixing valve is being shared by other pieces of equipment that are used only periodically, such as laundry appliances or
washdown stations. It may reduce the inlet pressure to the mixing valve to less than 3 PSI. The supply line size may not be large enough to
supply both the valve and the other appliances.
Solution: Enlarge the supply line size, reconfigure the supply line or regulate the supply usage.
6
TO CHECK FOR SMOOTH MOVEMENT)
SEAT ASSEMBLY
SCREWS
7/21/06
SPRING
PISTON
(PUSH IN, THEN RELEASE
THERMOSTAT
PUSHROD
THERMOSTAT
RETAINER
CAP WITH
STEM
Bradley Corporation • 215-1501 Rev. E; EN 06-908
Installation
VALVE BODY
LINER
PISTON ASSEMBLY
NOTE: Arrow on cap
must point to HOT side.
Publicidad
