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Bosch 3H/2C Touch-Technology Thermostat
Installation, Operation & Application Manual
08.2016
|
Bosch Thermotechnology Corp.
Data subject to change
3 Installation
3.1 Removing existing thermostat
DANGER: ELECTRICAL SHOCK HAZARD
Turn off power at the main service panel by removing the fuse
or switching the appropriate circuit breaker to OFF position
before removing the existing thermostat.
1.
Turn off power to heating and cooling system by removing the fuse or switching
the appropriate circuit breaker off .
2.
Remove cover of old thermostat; this should expose the wires.
3.
Label the existing wires with the enclosed wire labels before removing wires.
4.
After labeling wires, remove wires from wire terminals.
5.
Remove existing thermostat base from wall.
6.
Refer to the following section for instructions on how to install this thermostat.
3.2 Battery installation and information
Two “AA” alkaline batteries are used for backup power only. They are installed into the
back of the thermostat. Orient them in the correct direction as shown on the plastic
thermostat case.
The batteries should be changed yearly to prevent leakage from damaging the
thermostat and voiding your warranty.
If the batteries are not changed or low and the thermostat is not connected to 24
VAC or loses 24 VAC power, the thermostat will eventually display
and conserve
energy by maintaining a lower setpoint in heating and a higher setpoint in cooling.
3.3 Installing thermostat
DANGER: ELECTRICAL SHOCK HAZARD
Turn off power at the main service panel by removing the fuse
or switching the appropriate circuit breaker to OFF position
before removing the existing thermostat.
CAUTION:
Thermostat installation must conform to local and national
building and electrical codes and ordinances.
Mount the thermostat about fi ve feet above the fl oor. Do not mount the
thermostat on an outside wall, in direct sunlight, behind a door, or in an
area aff ected by a vent or duct.
1.
Turn off power to heating & cooling system by removing the fuse or switching
the appropriate circuit breaker off .
2.
To remove sub base, pull it from the thermostat.
3.
Put thermostat sub base against the wall where you plan to mount it (be sure
wires will feed through the wire opening in the sub base of the thermostat).
4.
Mark the placement of the mounting holes.
5.
Set thermostat sub base and thermostat away from working area.
6.
Using a 3/16” drill bit, drill holes in the places you have marked for mounting.
7.
Use a hammer to tap supplied anchors in mounting holes.
8.
Insert stripped, labeled wires in matching wire terminals. Tighten screws to
secure wires.
CAUTION:
Be sure exposed portion of wires does not touch other wires.
9.
Gently tug wire to be sure of proper connection. Double check that each wire
is connected to the proper terminal.
10.
Install 2 “AA” batteries into back of thermostat.
11.
Snap thermostat onto the sub base.
12.
Turn on power to the system at the main service panel.
13.
Confi gure thermostat to match the type of system you have.
14.
Test thermostat operation as described in “Testing the Thermostat”.
