IHP H8864 User manual

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P/N 900261-00 Rev. A REV 3/18/14 Page 1 of 5
IHP: WS-S-TSTAT
Cat. No. H8864 Model: WS-S-TSTAT
INSTALLATION AND OPERATION INSTRUCTIONS
INTRODUCTION
This WS-S-TSTAT wired wall thermostat was developed to provide a safe, reliable control system for gas heating appliances. The
system can be operated thermostatically or manually from the wall unit.
WALL MOUNT THERMOSTAT
The WS-S-TSTAT wired thermostat operates on (2) 3V Button Cell (Included) which powers the
LCD screen and circuit board. Before using the WS-S-TSTAT wall thermostat the 3V batteries must
be installed into the battery compartments.
It is recommended that CR2032 lithium batteries always be used for longer battery life and
maximum operational performance. If the LCD screen will not come on, check the 3V Button Cell
battery.
TO INSTALL BATTERIES IN THE THERMOSTAT
1. Remove face from backing wall plate this is done by sliding the face up about 1/2” then pull the face off the base plate. As
shown in Figure #1
2. Locate the (2) holders for the 3V button cell batteries.
3. Slide the button cell batteries into the battery holders. (Make sure that the batteries are installed with the (+) plus side facing
you or up.
4. Reinstall the face to the backing plate this is done by sliding the face in and down about 1/2” then check that the (2) male
terminal connectors on the face are engaged in the female terminal connectors on the backing plate. As show in Figure #1
TO REMOVE THE BATTERIES FROM THE THERMOSTAT
1. Remove face from backing plate this is done by sliding the face up about 1/2” then pull the face off the base plate. As shown in
Figure #1
2. Locate the (2) holders for the 3V button cell batteries.
3. Insert a small screwdriver into the slot above the button cell battery and push the battery out. As shown in Figure #2
4. Reinstall the face to the backing plate this is done by sliding the face in and down about 1/2” then check that the (2) male
terminal connectors on the face are engaged in the female terminal connectors on the backing plate. As show in Figure #1
Figure #2
IF YOU CANNOT READ OR UNDERSTAND THESE INSTALLATION INSTRUCTIONS DO NOT
ATTEMPT TO INSTALL OR OPERATE
ON OFF
SET
°
)
ROOM “SET”
TEMP
LCD
Display
Thermo
Mode
SET Button
ON/UP
Button
DOWN/OFF
Button
(2) 3 Volt Button
Cell Batteries
Battery Removal
Slots
+
Plus
Side
+
Plus
Side
Figure #1

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P/N 900261-00 Rev. A REV 3/18/14 Page 2 of 5
IHP: WS-S-TSTAT
WIRED WALL MOUNT THERMOSTAT OPERATION
FUNCTIONS
1. ROOM TEMP – Current room temperature.
2. F – Degrees Fahrenheit (C Indicates degrees Celsius)
3. FLAME ICON – Indicates APPLIANCE IS ON.
4. SET- Indicates WS-S-TSTAT is in thermostat mode.
5. DASHES – Indicate thermostat mode is being disabled. When
WS-S-TSTAT is not in the thermostat mode. The word (SET) will not appear.
1. This WS-S-TSTAT Wired wall Thermostat has ON, OFF, and SET functions that are activated
by pressing the buttons on the face of the WS-S-TSTAT.
2. If the LCD will not come on, check the 3V-button cell battery.
SETTING MANUAL OPERATION
1. When the ON button on the WS-S-TSTAT is pressed a flame icon on the LCD screen will
appear when the appliance is ON.
2. When the appliance is OFF the flame icon will not appear.
SETTING THERMOSTAT OPERATION
1. If the WS-S-TSTAT is in the thermostat mode the word (SET) will appear on the LCD
screen.
2. When the SET button is pressed the temperature digits will begin to flash.
3. While the temperature digits are flashing use the ON button to increase the set
temperature or use the OFF button to decrease the set temperature to your desired
temperature.
4. When the desired temperature setting is reached press the SET button, again and the
word SET will appear on the LCD screen and now the thermostat will automatically send
an ON or OFF signal to the appliance.
5. To disengage the thermostat mode push the OFF button or push and hold the SET button
until (2) dashes appear on the LCD screen. When you release the SET button this will
disengage the thermostat mode and the word SET will disappear from the LCD screen.
SETTING 0 F / 0 C SCALE
The factory setting for temperature is degrees Fahrenheit (0 F). To change this setting to Centigrade (0 C), you must press and hold both
the ON and OFF buttons on the transmitter at the same time until the LCD displays the change. If you want to convert back, repeat the
above procedure.
THERMO UPDATING FEATURE
This wired wall thermostat has a THERMO UPDATING Feature built into its software. The THERMO UPDATING Feature operates in
the following manner, but only in the THERMOSTAT MODE:
The WS-S-TSTAT normally reads the ROOM temperature every 2 minutes checking the ROOM temperature against the SET
temperature and then sends a signal to the appliance.
NOTE: When locating the WS-S-TSTAT on a wall remember it should be kept away from direct sources of heat such as heating
appliance, incandescent lighting, and direct sunlight. Leaving the WS-S-TSTAT in direct sunlight, for example, will cause its heat-
sensing diode to read the room temperature higher than it actually is; if in THERMOSTAT mode, it may not turn on the appliance even if
the ambient ROOM temperature is below the SET temperature.
ROOM TEMP
12
3
SET
ROOM TEMP SET
5
4
ROOM TEMP
ROOM TEMP SET
ROOM TEMP SET
ON
SET
OFF

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P/N 900261-00 Rev. A REV 3/18/14 Page 3 of 5
IHP: WS-S-TSTAT
WALL
3V
3V
30
60
120
OFF
INSTALLATION INSTRUCTIONS
WALL MOUNTING THE WS-S-TSTAT THERMOSTAT
1. Remove face from backing plate as shown in Figure #1 then locate the
WS-S-TSTAT to where the (2) thermostat wires from the appliance can be
pulled through the hole on the backing plate and connect them to the (2)
terminal screws.
2. After locating the (2) two mounting holes and mark the holes on the wall.
3. Use the (2) two dry wall anchors and screws (that are supplied) to mount
the base plate to the wall as shown.
4. Thermostat can also be mounted onto an existing (Plastic) electrical box.
5. Base plate should be mounted level on the wall for best operation
6. Reinstall the face to the backing plate this is done by sliding the face in and
down about 1/2” then check that the (2) male terminal connectors on the face
are engaged in the female terminal connectors on the backing plate. As shown
in Figure #1
GENERAL INFORMATION
WARNING
This WS-S-TSTAT wired wall thermostat must be installed exactly as outlined in these instructions. Read all instructions completely
before attempting installation. Follow instructions carefully during installation. Any modifications of the WS-S-TSTAT or any of its
components will void the warranty and may be pose a fire hazard.
Do not connect any gas valve or electronic module directly to 110-120VAC power. Consult gas appliance manufacturer’s instructions
and wiring schematics for proper placement of all wires. All electronic modules are to be wired to manufacturer’s specifications.
WIRING INSTRUCTIONS
A qualified electrician or a gas technician who is familiar with the gas appliance and gas valves that will be operated by this remote
should install the remote control system. Incorrect wiring connections WILL cause damage to the gas valve or electronic module
operating the gas appliance and may also damage the remote receiver.
WIRING MILLIVOLT VALVES - ELECTRONIC SPARK IGNITIONS – OTHER APPLIANCES
This WS-S-TSTAT wired wall thermostat connects to a millivolt gas valve, electronic spark ignition systems or other heating appliances
as shown below in Figure #3, Figure #4, & Figure #5. Connect 18-gage stranded or solid wires from the WS-S-TSTAT wired wall
thermostat to the gas valve, or electronic module.
Figure #3(Millivolt Valve) Figure #4 (Electronic Spark System)
TH
TP TP
TERMINAL BLOCK
ON MILLIVOLT
GAS VALVES
TH
THERMOPILE/
PILOT LIGHT
REMOTE
RECEIVER
ELECTRONIC MODULE
TR TH
REMOTE
RECEIVER
neutral wire
24VAC
hot wire
120VAC
110/24VAC
Transformer

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P/N 900261-00 Rev. A REV 3/18/14 Page 4 of 5
IHP: WS-S-TSTAT
Figure #5 (Other Appliances)
SYSTEM CHECK
MILLIVOLT VALVES - ELECTRONIC IGNITION SYSTEMS – OTHER APPLIANCES
Light your gas appliance following the lighting instructions that came with the appliance. Confirm that the pilot flame is on; it must be in
operation for the main gas valve to operate, if you have an electronic ignition system check the power source as well.
•Press the ON button on the WS-S-TSTAT to turn the system to ON manually. The main flame should come ON.
•Press the OFF button on the WS-S-TSTAT to turn the system to OFF manually. The main flame should extinguish (the pilot flame
will remain on if you are using a millivolt gas valve system).
•Press the SET button on the WS-S-TSTAT to change the system to THERMO. Hold the SET button to set the temperature on the
WS-S-TSTAT to a temperature of a least 20F (10C) above the ROOM temperature displayed on the LCD screen. With this
manual setting, the normal thermostatic cycle is overridden and the system flame will ignite. Set the SET temperature to at least 20
F (10C) below the room temperature and the system flame will extinguish in a few seconds. Thereafter, it should continue to cycle
to on and off thermostatically approximately every two minutes as the ROOM temperature changes, but only when the temperature
differential between ROOM and SET temperatures differ at least 20F (10C). The 20F differential is the factory setting.
GENERAL INFORMATION
BATTERY LIFE
Life expectancy of lithium button cell batteries in the WS-S-TSTAT should be at least (1) season (8) months. Check and replace both
batteries annually. The WS-S-TSTAT should operate with as little as 2.4 volts of battery power, measuring at each of the 3-volt button
cell batteries.
Other Appliance
Power Supply;
Could be 12VAC,
112DC or 24VAC
Wires from other
not incluced
Note: Bring wires
thru back of TS3 to
the screws shown.

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P/N 900261-00 Rev. A REV 3/18/14 Page 5 of 5
IHP: WS-S-TSTAT
HOW TO REGISTER A CLAIM AGAINST WARRANTY
In order for any claim under this warranty to be valid, you must contact the IHP dealer/distributor from which
you purchased the product. If you cannot locate the dealer/distributor, then you must notify IHP in writing.
IHP must be notified of the claimed defect in writing within 90 days of the date of failure. Notices should be
directed to the IHP Warranty Department at 1508 Elm Hill Pike, Suite 108; Nashville, TN 37210 or visit our
website at www.IHP.us.com
TROUBLE SHOOTING
Should you encounter problems with your appliance system, the problem may be with the appliance itself or it could be with the WS-S-
TSTAT wired wall thermostat. Review the appliance manufacturer’s operation manual to make sure all connections are properly made.
Then check the operation of the WS-S-TSTAT in the following manner:
1. Be sure the batteries are properly installed and that the battery output is 2.4 volts on each battery or more. If one battery is
installed backward the wired wall thermostat will not operate.
2. The WS-S-TSTAT has (2) 3-volt button cell batteries (1) button cell operates the LCD screen and the other button cell powers the
PCB board. If the button cell battery that controls sending the PCB board is low or defective the LCD screen may work but the PCB
relay may not close the contact (Check each button cell battery)
3. Check that the (2) male terminal connectors on the face are engaged in the female terminal connectors on the backing plate.
4. Check the wire connections to the WS-S-TSTAT from the appliance that they are properly connected
SPECIFICATIONS
BATTERIES: WS-S-TSTAT wired wall thermostat – (2) ea. (CR2032) 3.0-volt lithium button cell batteries.