Thermostatic Shower Valve Cut-away
Series 4000 cut away
1
2
5
22
6
21
3
4
8
20
12
15
16
17
18
19
11
10
14
13
7
9
Checking the Thermostat
If cold seat #9 on thermostat is worn or deeply indented,
remove it and replace with a new one. If there is a question
as to the thermostat being good, hold thermostat under
cold water faucet and insert an eraser capped pencil into
the center of thermostat. Make a reference mark where
pencil protrudes from the thermostat. Now place the entire
thermostat into hot water, approximately 125°F, for about
one minute. Remove thermostat from water, examine the
reference mark on pencil again. At this temperature, it
should extend out from former position about 1/8”. If it does
not, a new thermostat should be installed.
CAUTION: Extreme care should be exercised when
placing thermostat in and out of hot water.
Checking Piston and Liner
Remove piston assembly #12 from valve. Check the piston
assembly and liner #16 for cleanliness and excessive wear.
Check hot disc #10 for wear. Replace all worn parts.
Note:
Liner #16 can be removed with a:
3/8” hex wrench for med & high flow 1/2” valves,
5/8” hex wrench for 3/4” valves.
Before reassembling the valve, thoroughly flush out with water.
Use only genuine factory parts for replacement of seat
washers; thickness will affect the operation of the mixing
valve.
When in Need of Information
When writing the factory or one of its representatives
in regard to a mixing valve, be sure to give the number
appearing on the name plate fastened to the dome.
Repair Kit
Valves can be completely rebuilt in a matter of minutes
without removal from the line by installing a repair kit.
WARNING: This product contains chemicals known
to the State of California to cause cancer and birth
defects or other reproductive harm.
(Installer: California law requires that this warning
be given to the consumer.)
For more information: www.oehha.org/prop65
