Bradley Sentry SN2013/AST4 Mode D'emploi page 10

SN2013/AST4, SN2013/AST4-F, SN2033/AST4
Thermostatic Mixing Valve Troubleshooting
Before attempting to troubleshoot the valve or disassemble the components, check for the following conditions:
• If stop valves are used, make sure that they are fully open.
• Make sure that the hot and cold inlet pipes are connected properly, and that there are no cross-connections or
leaking stop valves.
• Check the hot water heater output to make sure that it is at least 10° 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 Cause
External leaks.
Damaged cartridge or O-rings.
Improper water
Hot water supply is not 10° above desired set point.
temperature or
temperature
Valve temperature is not properly set.
fluctuation.
Limited water Dirt and debris have built up in the valve or strainer.
flow.
10
Parts List
Item
1
2
3
4
5
6
7
* Included with Prepack S65-326
8/15/2014
Solution
Replace cartridge with part number 269-1927
Increase hot water supply temperature
Adjust the temperature as shown on page 7, step 4.
1. Check to make sure both hot and cold supplies are
connected to the Navigator mixing valve and that they
have water flow.
2. Remove cover and U-clip. Remove the cartridge and
clean the strainer. It is not required to grease cartridge,
however if desired, use silicone grease only. Do not use
grease on check valves.
Part No. Description
160-463 Cap Screw
107-582 Cover
269-1927 Thermostatic Cartridge
198-014 Check Valve*
132-051 Retaining Ring*
118-319 Valve Body
146-079 U-Clip
Tempered Line Adapter Option
Part no. S39-804
(replaces S59-4000 if tempered line
is used)
Strainer
(173-028)
Bradley • 215-784 Rev. P; ECN 14-00-007
Installation
Quantity
S59-4000
1
1
1
2
2
1
1