Maintenance Instructions
OPERATION
The principal handle of the TEMP-GARD valve is for tempera-
ture control only. To turn on the valve, the handle is turned coun-
terclockwise through the cold position, to the warm and then to
the hot position. The maximum turn of the valve is approxi-
mately one revolution. This large adjustment allows for infinite
settings to suit the requirements of the user.
The volume control and volume control/diverter options of the
TEMP-GARD valve give the user an added control feature. The
shower only valves with volume control; the lever handle below
the temperature handle is used to regulate the volume of flow.
This is done by moving the lever handle from the far right posi-
tion (Minimum Flow) to the far left position (Maximum Flow).
The tub and shower valves with volume control/diverter; the
lever handle below the temperature handle is used not only to
regulate the volume of flow but also to divert flow from the tub to
the shower. This is done by moving the lever handle to the left
for tub flow and to the right for shower flow. Desired volume
control is obtained by moving the lever from the vertical posi-
tion in the required direction.
Do not turn diverter without the
complete trim installed. Damage to the diverter spindle may
occur if it is turned too far.
(Note: Leave packing nut(#10) in place and
valve in full hot
position when removing bonnet to avoid distortion to control
stem)
4. Standard service: To eliminate dripping or non-positive off.
• This normally requires only the replacement of parts
supplied in control stem washer replacement
kit(RK7000-120) or stem replacement kit(RK7000-50).
• Hold control stem with temperature handle(#38) to
remove the hot washer retaining screw(#17) and the cold
washer retaining ring(#13). Channel locks or equivalent
can be used to remove cold washer retaining ring.
(Note: Be sure to inspect seats, seat o-ring and control stem
for wear)
5. Extended service: When wear on seats, seat o-ring or
control stem is identified.
5a Seat replacement
• Requires seat replacement kit(RK7000-180) and a set
of seat tools(RK7000-18TOOLS)(Note: Make a positive
engagement of tool into seats while removing and
reassembling).
5b Control stem assembly service and replacement.
• The inside end of the control stem going into the valve is
the most critical part of the valve. This end houses the
stainless steel control piston.
• If the piston is obstructed or blocked, first soak the
control stem assembly overnight in household vinegar.
Then try to free it by tapping the handle end against a
firm object such as a stiff rubber handle or the sole of a
shoe. If piston comes free, shake it and feel for
resistance. The piston should move freely in control stem
and should "click" when assembly is shaken.
• If piston does not become unobstructed or any damage
is noted, replace it with the control stem assembly
(RK7000-50).
•• Loosen packing nut prior to inserting new control
stem, as this reduces possible damage to
packing components.
•• Lubricate control stem shaft threads with
included pillow packet lube, prior to inserting in
bonnet.
DO NOT TAMPER WITH THE CONTROL
SPINDLE OR ATTEMPT TO REMOVE THE PISTON.
6. Reassemble the ZURN TEMP-GARD valve.
• Reversing above procedure; IMPORTANT: Be sure that
the spindle assembly is drawn close to the bonnet
before screwing bonnet back into valve.
• Tighten bonnet to 25 ft. lbs. of torque.
• Tighten packing nut to 15 in. lbs. of torque, and check
for desired frictional resistance when rotating handle.
Packing nut can be tightened additionally, in small
increments, to increase frictional resistance.
• Reset adjustment screw to obtain maximum desired
output temperature.
• Check for leaks, prior to reinstalling trim.
Follow the dimensions below for wall preparation:
•
When installing the ZURN TEMP-GARD valve in fiberglass
or panel wall (1/16" to 1"), it is recommended to sandwich
wall between valve body and the cover (Note: To aid with
installation, use the optional wall flange(-WF).
•
On panel walls over 1" thick, install in conventional manner.
•
Securing valve piping to rough construction in lieu of full
dependence on thin wall for rigidity is recommended.
COVER GASKET
Position gasket in back side of cover with the adhesive against
the cover and the open end at bottom as shown.
40
40
1. Shut-off water to valve with service stops. To do this remove
both retainer screws (#26) with flathead screwdriver. Then turn
both service stop spindles (#22) clockwise with 3/16" Allen
wrench.
2. Remove cover trim.
3.
Caution Important:
Before removing bonnet (#3) follow
this sequence to avoid distortion of stem. Back out adjustment
screw Item (#8) until O-ring is fully exposed.
Open valve to full
hot
and unscrew bonnet (#3). Control stem will be removed
with bonnet. Leave packing nut (#10) in place when removing
bonnet to avoid distortion of control stem.
SERVICE (REFER TO FINAL PAGE FOR PART CALL-OUTS)
Form #
CF1007
Date:
08/22/14
Product #
IS7000
C.N. No.
SAN006742
Rev.
K
Sheet:
2 of 4
