CAUTION
!
To prevent electrical shock and/or equipment damage,
disconnect electric power to system at main fuse or circuit
breaker box until installation is complete.
PART NO. 37-6981A
0843
Installation and Operating Instructions
for Hum/Dehum Modulating
Touchscreen Thermostat
APPLICATIONS
(-)HC-TST412MDMS
Modulating Touchscreen Thermostat
SPECIFICATIONS
Electrical Rating:
Battery Power . . . . . . . . . . . . . . . . . . . . . . . . . . mV to 30 VAC, NEC Class II, 50/60 Hz or DC
Input-Hardwire . . . . . . . . . . . . . . . . . . . . . . . . . 20 to 30 VAC
Terminal Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A per terminal, 2.5A maximum all terminals combined
Setpoint Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 to 99°F (7 to 32°C)
Differential (Single Stage) . . . . . . . . . . . . . . . . . . . . Heat 0.6°F; Cool 1.2°F
Differential (Multi-Stage) . . . . . . . . . . . . . . . . . . . . . Heat 0.6°F; Cool 1.2°F
Differential (Heat Pump) . . . . . . . . . . . . . . . . . . . . . Heat 1.2°F; Cool 1.5°F
Operating Ambient. . . . . . . . . . . . . . . . . . . . . . . . . . 32°F to +105°F (0 to +41°C)
Operating Humidity . . . . . . . . . . . . . . . . . . . . . . . . . 90% non-condensing max.
Shipping Temperature Range . . . . . . . . . . . . . . . . . -4 to +150°F (-20 to +65°C)
Dimensions Thermostat. . . . . . . . . . . . . . . . . . . . . . 4.6"H x 5.9"W x 1.2"D
ATTENTION: MERCURY NOTICE
This product does not contain mercury. However, this
product may replace a product that contains mercury.
Mercury and products containing mercury must not be
discarded in household trash. Do not touch any spilled
mercury. Wearing non-absorbent gloves, clean up any
spilled mercury and place in a sealed container. For prop-
er disposal of a product containing mercury or a sealed
container of spilled mercury, place it in a suitable shipping
container. Refer to www.white-rodgers.com for location
to send product containing mercury.
Save these instructions for future use!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS
CAREFULLY BEFORE INSTALLING OR OPERATING THIS
CONTROL COULD CAUSE PERSONAL INJURY AND/OR
PROPERTY DAMAGE.
Please refer to the system installation and operating
manual for more detailed instructions and options.
Model Programming Choices
(-)HC-TST412MDMS
7 Day 5/1/1 Day Non-Programmable
THERMOSTAT APPLICATION GUIDE
Description
Modulating PWM output, gas furnace Yes
Heat Pump (with Aux. or Emergency Heat), 2 Stage Yes
Systems with up to 3 Stages Heat, 2 Stages Cool Yes
Heat Only Systems Yes
Wired Remote Temperature Sensor (Indoor or Outdoor) Yes
Dual Fuel Feature (Heat Pump Mode) Yes
Compressor Fault Detection Yes
Humidifi cation Control Yes
Dehumidifi cation Control Yes
Index Page
Installation 2
Wiring Connections 2
Wiring Diagrams 3
Thermostat Quick Reference 5
Installer Confi guration Menu 6
Operating Your Thermostat 10
Programming 12
Troubleshooting 15
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