American Standard T373.521 User Manual

Page of 3
VALVE LEAKS WHEN SHUT OFF
Remove CARTRIDGE (1) by removing CARTRIDGE SCREWS (2).
  
 
Remove 
three 
SCREWS (3) from FIXATION RING (4)
 
   and pull out PRESSURE BALANCING (5) unit.
Clean SEALS (9) on base of CARTRIDGE (1). Check base of PRESSURE
  
 
BALANCING 
UNIT (5) and clean O-RINGS (6). Remove CAPS (7) and check
 
   O-RINGS on inside of CAPS (7) for debris. Clean inside sealing surfaces of VALVE BODY (8).
Re-assemble PRESSURE BALANCING UNIT (5) and CARTRIDGE (1). Tighten all screws.
Turn on water supply and see above for installing TRIM and HANDLE.
 
   If it still leaks, replace pressure balancing unit (M952100-0070A).
 
   UNABLE TO MAINTAIN CONSTANT TEMPERATURE
Remove PRESSURE BALANCE UNIT (5).
Remove CAPS (7) and clean valve thoroughly.
Examine balancing unit and check condition of O-ring on end of piston. Piston should move back and forth.
 
   Order Repair Part M952100-0070A if balancing unit is defective. Replace CAPS (7) and install PRESSURE    
 
   BALANCE UNIT (5). Make sure inlets line up with two holes in bottom of casting.
 
   Top flange should butt-up against top of casting.
 
  INSTALL TRIM 
 
  CAUTION: Protect finish on SHOWER ARM, SHOWER HEAD
 
  and TUB SPOUT when installing.
When finished tiling the wall, remove PLASTER GUARD (A)
 
   and turn off water supply.
Install STEM ADAPTER (1) onto valve stem with ADAPTER
  
 
SCREW 
(2).
Push CAP (3) over VALVE CARTRIDGE (4).
Mount ESCUTCHEON (5) to valve body with SCREWS (6).
Push DIAL PLATE (7) over CAP (3) and into the four alignment
 
   holes in ESCUTCHEON (5).
Remove PIPE CAP (8) and PIPE CAP (9) from shower pipe and tub filler
  
 
pipe.
Install SHOWER ARM (10), SHOWER HEAD (11) and TUB
 
   FILLER SPOUT (12) by threading onto pipe nipples using teflon
 
   tape or pipe sealant.
Align HANDLE (13, 14) and push onto STEM ADAPTER (1).
        Tighten set screw in HANDLE (13, 14) securley with HEX
        WRENCH (15) supplied.
1
2
TO GAIN ACCESS TO VALVE FOR SERVICING
Remove HANDLE and TRIM. See step one and reverse assembly
procedure.
HANDLE
and TRIM
10
11
5
11
8
4
9
12
9
4
13
14
10
(4) ALIGNMENT
HOLES FOR
DIAL PLATE
1
2
3
A
M 9 6 8 2 8 5   R e v.   1 . 1