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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 • 215-1759 Rev. A; ECN 14-00-007
Cause
1
5
4
6
Replace cartridge with part number 269-1927
Increase hot water supply temperature
Adjust the temperature as shown on page 6, step 5.
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 S59-4000 if tempered
line is used)
Strainer
(173-028)
7
SN2004/TT, SN2024/TT
Solution
Description
Cap Screw
Cover
Thermostatic Cartridge
Check Valve*
Retaining Ring*
Valve Body
U-Clip
10/20/2014
Quantity
S59-4000
1
1
1
2
2
1
1
11
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