MF2944/BIR3
Installation
14 6/6/2014
Bradley •
215-1373 Rev. P; ECN 14-00-006
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.
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 9 step 7 .
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 .
Tempered Line Adapter Option
Part no. S39-804
(replaces S59-4000 if tempered line
is used)
Strainer
(173-028)
Parts List
Item
Part No.
Description
Quantity
S59-4000
1
160-463
Cap Screw
1
2
107-582
Cover
1
3
269-1927
Thermostatic Cartridge
1
4
198-014
Check Valve*
2
5
132-051
Retaining Ring*
2
6
118-319
Valve Body
1
7
146-079
U-Clip
1
* Included with Prepack S65-326
1
2
3
4
5
4
5
7
6
