Installation S59-4000, S59-4000A, S59-4000BY
Bradley • 215-1638 Rev. E ECN 14-09-013B 4/16/2014 3
Before attempting to troubleshoot the valve or disassemble the components, check for the following conditions:
• Ifstopvalvesareused,makesurethattheyarefullyopen.
• Makesurethatthehotandcoldinletpipesareconnectedproperly,andthattherearenocross-connectionsor
leaking stop valves.
• Checkthehotwaterheateroutputtomakesurethatitisatleast10°Fabovethesettemperature.
Thermostatic Mixing Valve Troubleshooting
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 Solution
External leaks.
Damaged cartridge or O-rings. Replace cartridge with part number 269-1927
Improper water
temperature or
temperature
fluctuation.
Hot water supply is not 10° above desired set point. Increase hot water supply temperature
Valve temperature is not properly set. Adjust the temperature as shown on page 2 step 2.
Limited water
flow.
Dirt and debris have built up in the valve or strainer. 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.
Item Part No. Description
Quantity
S59-4000 S59-4000A S59-4000BY
1 160-463 Cap Screw 1 1 1
2 107-582 Cover 1 1 1
3 269-1927 Thermostatic Cartridge 1 1 1
4 198-014 Check Valve* 2 2 2
5 132-051 Retaining Ring* 2 2 2
6 269-1999 3/8" Compression Adapter - 3 2
7 146-079 U-Clip 1 1 1
8 118-319 Valve Body 1 1 1
9 S45-2456 Mounting Bracket Kit (optional) 1 1 1
10 153-461 1/2" NPT x 3/8" OD Compression Adapter - - 1
11 269-2012 3/8" OD Compression Tee - - 1
12 136-050 3/8" OD Compression Cap - - 1
* Included with Prepack S65-326
Parts List
6
6
6
1
2
3
4
5
4
5
9
7
8
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