Watermark SS-THVD2 User manual

Thermostatic Shower with Built-in
Volume Control/ Diverter
Thermostatic Shower Trim w/ Built-in
Volume Control/ Diverter Page | 1
SS-THVD2 -1/2” THERMOSTATIC VALVE WITH 2 WAY DIVERTER
SS-THVD3 -1/2” THERMOSTATIC VALVE WITH 3 WAY DIVERTER
Features:
•Ability to pre-select water temperature – thus conserving water
•Paraffin wax element maintains water temperature within ± 1.8°F
•Compensates for water pressure fluctuations preventing scalding
•Safety button at 100°F prevents accidental scalding
• High flow rates allow for multiple shower applications
Specifications:
oOperating pressure is 2 PSI to 72 PSI
oWhen pressure is higher than 72 PSI a pressure reducer (fitted before the valve) is required.
oTemperature range is 50°F to 180°F
oRecommended setting is 29 PSI and 149ºF
Note:
•USE TEFLON TAPE OR PIPE SEALANT FOR THREADED CONNECTIONS
•DO NOT USE PLUMBER’S PUTTY ON ANY OF THE BRASS COMPONENTS
This will cause the finish to tarnish and void the warranty. A non-corrosive Alkoxy Silicone is
recommended.
•DURING SWEATING OF LINES DO NOT OVERHEAT CASTING
Overheating may cause damage to internal mechanism and void the manufacturer’s warranty as
well as increase the risk of scalding.
•COPPER ADAPTORS MAY BE REQUIRED TO COMPLETE YOUR INSTALLATION
•Listed by IAPMO, CSA, NSF, and other municipalities
•Shipping weight (lbs.): 5.5
•
Shipping dimension (in.): 11 x 9 x 7

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Valve Installation
1. Flush the lines of all dirt and debris. Failure to completely flush the lines will cause valve failure and will
void the manufacturer’s warranty
2. Fit the valve on the wall without removing the plastic cover on the control spindle. Turning the control
spindle will change the temperature setting which is pre-calibrated at the factory
3. Connect the hot water supply to the left inlet of the valve (HOT marked with RED paint) and cold supply to
the right inlet (COLD marked with BLUE paint).
4. Use the plastic mud guard template (part of the package) to position the valve on the wall. This is done
by checking the label on the outer template for the minimum/ maximum settings which is 1 ½” to 2 1/8”
from the center of the valve inlets to the finished wall.
5. Connect the outlet pipe(s). Refer to Diagram 2 for SS-THVD2 valve and to diagram 3 for SS-THVD3 valve.
NOTE: Port marked V will output 7.5 gpm and port marked D will put out 4.5 gpm.
NOTE: Shared ports are only between ports marked D1 and D2 on the SS-THVD3 valve.
Ensure bottom outlet is plugged if not being used.
Diagram 2 – thermostatic valve with 2 way diverter
Sample Setup

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Volume Control/ Diverter
Thermostatic Shower Trim w/ Built-in
Volume Control/ Diverter Page | 3
Diagram 3 – thermostatic valve with 3 way diverter
Sample Setup
Trim Installation
a. Screw Temperature Control Dome (6)and Volume Control Dome (7)onto valve.
oPlease note that the Temperature Control Dome (6)has a larger opening than the Volume
Control Dome (7).
b. Secure the Thermostatic Face Plate (1) onto the valve by sliding over the Temperature Control
Dome (6)and Volume Control Dome (7)
c. Screw Dome Sleeve (13)onto Temperature Control Dome (6)and Volume Control Dome (7).
d. Lock the Thermostatic Face Plate (1) securely against the wall using the Thermostatic Face Plate
Lock Ring (2).
e. Ensure Temperature Stop ring is installed with red dot at 12 o’clock position, and thermostatic
handle is installed with push button at 12 o’clock position.

Thermostatic Shower with Built-in
Volume Control/ Diverter
Thermostatic Shower Trim w/ Built-in
Volume Control/ Diverter Page | 4
Temperature Setting
The delivered temperature of the valve varies depending on the temperature of the supplied hot water. The
valve is factory set at a supplied temperature of 149ºF under balanced pressures. Depending on your
preferred hot water temperature setting, it may be necessary to adjust the calibrations of the valve. The
limit override button is preset at 100ºF and can be adjusted as described below.
1. Select 100ºF on the control handle.
2. Without turning the handle, remove the handle by unscrewing the screw and pulling off (screw may
be concealed and/or fastened with set screws).
3. Use a thermometer to check the delivered temperature on one of the outlets.
4. Adjust water temperature to 100ºF by hand turning the cartridge stem slowly left or right.
5. Ensure that the temperature stop-ring in installed with red dot at 12 o’clock position.
Push the handle back on the valve with the push button at the 12 o’clock position.
Removal and Maintenance of Cartridge
This thermostatic valve has screens to prevent dirt and unwanted particles from damaging the valve.
Clogged screens can cause reduced flow and inefficient temperature mixture by the valve. You can easily
clean the screens by following the instructions below.
1. Unscrew the two screws on the cover faceplate and remove the plate.
2. Shut off the water inlets by tightening the two screws at the two check stop valves.
3. Remove the handle by unscrewing the screw and pulling off (screw may be concealed and/or
fastened with set screws).
4. Pull off the temperature stop-ring.
5. Unscrew the cartridge with a 24 mm wrench or other adjustable wrench in a counter-clockwise
position and gently pull it out.
6. Clean the screens and rinse with water. If necessary, soak in a 50/50 mix of white vinegar/ water or
a de-scaling agent until all dirt is dissolved. Grease the o-rings with a silicone based grease and wipe
the housing with a wet cloth before reassembling.
7. Reassemble the valve by reversing these instructions. Make sure the indentation on the shroud, the
red dot on the temperature limit-ring, and push button on the handle are all in the aligned in the 12
o’clock position.
Note: To prevent the handle from accumulating mineral build up, which can cause the handle to “lock
up”, the handle must be turned on an occasional basis.

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Volume Control/ Diverter
Thermostatic Shower Trim w/ Built-in
Volume Control/ Diverter Page | 5
Parts Checklist
Carefully remove all parts from the box.
The following parts should be included.
Description
Qty
1
Face plate
1
2
Lock Ring
2
4
Temperature control
handle post
1
5 Volume control handle
post
1
6 Temperature control
dome
1
Representative Trim
Parts Checklist
7
Volume control dome
1
9
Volume Control handle
1
10 Temperature Control
handle
1
11 Temperature control set
screw (for some models)
1
12
set screw (for some
models)
2
13
Dome sleeve (raw brass)
2
Representative Trim

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Volume Control/ Diverter
Thermostatic Shower Trim w/ Built-in
Volume Control/ Diverter Page | 6
Troubleshooting
Malfunction
Cause
Remedy
Cannot regulate temperature
Dirt in check valves
Water supply reversed
Valve installed upside down
Remove and clean check valves
Reverse hot and cold supply lines
Reverse valve
Hot and cold water do not mix Lack of water pressure at one
of the inlets
Blocked shower head
Correct water pressure at source
Remove shower head and clean debris.
If necessary, soak in a 50/50 mix of
white vinegar/ water or a de-scaling
agent until all dirt is dissolved.
Water not hot enough /
Water too hot
Debris in check valves
Valve not properly calibrated
Water heater setting incorrect
Remove and clean check valves
Calibrate valve following instructions on
previous page
Adjust water heater temperature setting
Temperature selected on
handle is different than actual
water temperature
Debris in check valves
Valve not properly calibrated
Uneven hot & cold water
pressure
Remove and clean check valves
Calibrate valve following instructions on
previous page
Check and adjust water pressure for
both hot & cold supply lines
Handle does not turn Mineral build up Remove and clean cartridge following
instructions above
Low water pressure Low water pressure
Debris in cartridge
Debris in check valves
Blocked shower head
Check and adjust water pressure at
source
Remove and clean cartridge following
instructions above
Remove and clean check valves
Remove shower head and clean debris.
If necessary, soak in a 50/50 mix of
white vinegar/ water or a de-scaling
agent until all dirt is dissolved.
Leaking shower head Fault cartridge in wall stop/
volume control
Repair or replace cartridge in wall stop/
volume control
Valve body too deep into wall The measured rough in or
finished wall surface is incorrect
Install the proper extension kit:
SS-EXT50 (need to specify finish)

Thermostatic Shower with Built-in
Volume Control/ Diverter
Thermostatic Shower Trim w/ Built-in
Volume Control/ Diverter Page | 7
SS-THVD2
SS-THVD3
Rev. 2/2014