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Installation
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
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 flow . Dirt and debris have built up in the valve or strainer .
2
3
4
5
Bradley • 215-1071 Rev. M; ECN 17-00-002
Cause
1
5
4
6
Replace cartridge with part number 269-1927
Increase hot water supply temperature
Adjust the temperature as previously shown in this
installation manual .
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 .
Parts List
Item
Part No.
1
160-463
2
107-582
3
269-1927
4
198-014
5
132-051
6
118-319
7
146-079
* Included with Prepack S65-326
Tempered Line Adapter Option
Part no. S39-804
(replaces S01-526 if tempered
line is used)
Strainer
(173-028)
7
8/21/2017
SN2004, SN2024 - Infrared
Solution
Quantity
Description
S59-4000
Cap Screw
1
Cover
1
Thermostatic Cartridge
1
Check Valve*
2
Retaining Ring*
2
Valve Body
1
U-Clip
1
11
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