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1 4 | Bosch 2H/2C/Hum Touch-Technology Thermostat
6 Mode of operation
This thermostat is based on the i2020HR, but adds connections to the UPM to read
UPM fault codes. It saves fault code history and displays a new message on the front
panel of the thermostat to alert the user to call a service technician to service the
system.
The thermostat is a programmable, manual or auto changeover, up to 2-stage heat
and up to 2-stage cool thermostat. It functions with air conditioning, heat pumps,
gas, oil, or electric heat systems. The thermostat activates the heating appliance
when the room temperature is below the set heat temperature (by the diff erential
temperature). When the call for heat has been satisfi ed, the outputs are turned off .
With heat pumps, the thermostat will not let the compressor come on for 4 minutes
after it turns off to protect your compressor.
When the room temperature is greater than the set cool temperature (by the
diff erential temperature), the cooling device is activated. When the call for cooling
has been satisfi ed, the outputs are turned off . The thermostat will not let the
compressor come on for 4 minutes after it turns off to protect your compressor.
The program schedule can be overridden by changing the set temperature (
). This puts the thermostat into a temporary hold. It will automatically return to
the program schedule depending on how the override feature is confi gured.
The thermostat is controlling a dehumidifi er (including an air conditioner). The
thermostat will turn on the dehumidifi er when the relative humidity is above the
setpoint humidity, by the diff erential. Depending on the settings, when the relative
humidity reaches the diff erential humidity set or the room temperature is 3°F below
the set cooling temperature, the dehumidifi er is turned off .
Data subject to change
6.1 Icon functions
UP – Used to increase the time, set temperatures, and to adjust
confi guration settings.
DOWN – Used to decrease the time, set temperatures, and to adjust
confi guration settings.
MENU – Used to enter confi guration, set the clock, lock the thermostat,
or select viewing options.
—
CONFIG
—
CLOCK
—
LOCK
—
VIEW
or
—
HUMIDITY
FAN – Used to select between AUTO, ON, and HOURLY fan operation.
MODE – Used to select between OFF, HEAT, EMERGENCY HEAT (heat
pump only), COOL, and AUTO changeover modes.
HOME – Wakes thermostat, returns to home screen, and enters changes
into memory.
SCHEDULE – Used to edit program schedule, turn program on and off ,
and set vacation return dates.
CALL
CALL SERVICE TECH – Message appears when the thermostat senses a
SERVICE
TECH
CHECK FILTER – Message appears when the blower motor set runtime
Installation, Operation & Application Manual
Sets up thermostat to work for specific
systems.
Set year, month, date, and time.
Allows you to lock the thermostat to prevent
tampering.
Allows you to see both the remote sensor
temperatures, date, current schedule period, lock
screen, fi lter accumulated time, and show details
(system status).
Allows you to view the current relative
humidity and change humidity setpoint (10%
to 80%).
lockout condition occured on the UPM.
has been met. Indicates the air fi lter should be
checked, cleaned, or changed.
09.2016 | Bosch Thermotechnology Corp.
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