Installation Sheet

1) Shut off water supply to valve.
2) Loosen set screw and remove handle,
dome cover, dial and escutcheon in that
order.
3) Open valve to about warm position and
unscrew cap (SC-2). Warning: Failure
to OPEN VALVE will damage cap and
spindle. Spindle assembly (HF-103) will
be removed with cap. Leave packing nut
(SC-7) in place while unscrewing cap to
avoid distortion.
4) Ordinary service to eliminate dripping
or not shutting off requires only the
replacement of parts supplied in washer
and gasket kit (KIT-HF). Hold spindle
with handle while removing hot washer
screw and cold washer retainer (remove
retainer with channel lock pliers).
5) Inspect surfaces of renewable seat (HF-
109). If seat surfaces are worn or wire
drawn or if NEW SPINDLE IS VERY
LOOSE IN SEAT, replace renewable seat
(HF-109). Use 1/2” hex key. Clean seat
surfaces for proper sealing of top seat
o-ring (HF-114). Tighten seat to 15 foot
pounds of torque.
6) The perforated end of the (HF-109)
spindle assembly houses the balancing
piston which is the heart of this pressure
balancing valve. The piston should be free
to move back and forth and should click
when the spindle assembly is shaken. If
deposits block this action, tap the handle
end of the spindle against a solid object
to free the piston. Soaking in household
vinegar will help free foreign matter. If
this does not free piston, replace (HF-103)
spindle assembly. DO NOT TAMPER
WITH PERFORATED CYLINDER
ON THE SPINDLE ASSEMBLY OR
ATTEMPT REMOVAL OF THE
PISTON.
7) Reassemble, reversing above procedure.
Be sure spindle assembly is drawn close
to the cap before screwing cap back into
valve. Warning: Failure to do this will
damage cap and spindle.
8) USE ONLY SYMMONS SAFETYMIX
GENUINE REPAIR PARTS. FAILURE
TO DO SO WILL VOID ALL
WARRANTIES AND IMPAIR PROPER
OPERATION OF YOUR VALVE.
SERVICE
TROUBLE SHOOTING CHART
Problem Cause Solution (Follow service instructions)
Valve will not pass water Hot and cold water not turned on
Turn on both supplies. Valve will not
operate unless both HOT and COLD water
pressure is turned on.
Valve leaks when shut off.
Hot and cold washers are worn or foreign
matter (solder, chips, etc.) are between
washers and seat surfaces.
Replace HOT and COLD washers. Inspect
top surface on hot and cold seats and
replace if necessary.
Temperature control handle is turned
from cold to hot (or hot back to cold) and
volume from spout or head is not constant.
Pressure-balancing piston housed in spindle
assembly is blocked from free movement by
foreign matter.
With valve open half way, remove handle
and tap spindle with plastic hammer.
If problem not solved, remove spindle
assembly completely and tap handle end
against solid object to free piston. Soaking
in household vinegar will help free foreign
matter.
Valve delivers sufficient quantity of cold, but
little hot, or the reverse.
Same as above Same as above
Temperature varies without moving handle. Same as above Same as above
Valve delivery temperature reduces gradually
during use; handle must be turned on
to hotter positions to maintain constant
temperature.
Overdraw on hot water supply, i.e. running
out of hot water.
See note regarding Hot Water Heater on
page 1.
Symmons Industries, Inc. ■ 31 Brooks Drive ■ Braintree, MA 02184
[phone], [phone]
■ Fax [phone]
Website: www.symmons.com
■ Email: [e-mail]
©2007-2014 Symmons Industries, Inc. Printed in U.S.A.
■ ZV-432 ■ Rev A ■ 061114