SN2005/AST4, SN2005/AST4-F
Installation
10
12/04/2012
Bradley
• 215-1066 Rev. H; ECN 12-00-004
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 6, step 4.
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.
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.
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