Bosch TSTBM3H2CPH6W-A User Manual

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Subject to change without prior notice Revised 02-13
22 TSTBM3H2CPH6W-A
UNDERSTANDING SWING AND STAGING
All Bosch thermostats have adjustable swings.
Cycling your HVAC system is a balance between user
comfort and equipment efciency. Equipment wear
and tear is also a consideration.
• User comfort is maximized by small swings
• Equipment efciency is maximized by large swings
• Equipment wear and tear is minimized by large
swings
• The ideal swing is one at which the system runs as
long and with as few cycles as possible without the
homeowner being uncomfortable
• Modern systems are designed to run longer with
fewer cycles for best efciency
• Staging systems are designed to be most efcient
on rst stage (excluding dual fuel systems)
• Equipment life is reduced by frequent on/off cycles
• The 1st stage energizes at 1x swing, the 2nd stage
at 2x swing and the 3rd stage at 3x swing.
Example:
• Thermostat system switch set to heat
• Swing setting is 1°F
• Set point is 70°
Temp Actions
71°F 1st Stage Off
70°F Set point
69°F 1st Stage On / 2nd Stage Off
68°F 2nd Stage On / 3rd Stage Off
67°F 3rd Stage On
The 1st stage will energize at 69°F and turn off at
71°F. The 2nd stage will energize at 68°F and turn
off at 69°F. The 3rd stage will energize at 67°F and
turn off at 68°F.
HUM TERMINAL
HUM TERMINAL SETTING
1 "H" terminal is energized when a heating
call is made or a FAN ON call is made
2 "H" terminal is energized when a heating
call is made
3 "H" and "G" terminals are energized
with and without a heating call
4 "H" terminal only is energized without
heating call and remains energized with
a heating call
* These setting and condition explanations assume
humidity set point has not been satised and the
equipment is attempting to actively humidify
HUM and DHM Terminals
DHM TERMINAL
DHM TERMINAL SETTING
Without Cool-to-Dehumidify Feature Active With Cool-to-Dehumidify Feature Active
1 “D” terminal is energized when a cooling call is
made or a FAN ON call is made.
First stage of cooling (Y1,O,G) along with “D”
terminal are energized even if space temp is
satised (within the over cool limit)
When the set point is beyond the over cool limit,
the “D” will also energize with a FAN ON call
2
“D”
and "G" terminals energized even when
space temp is satised.
“D” and “G” remain energized if cooling call is
made.
“D” and “G” terminals only are energized even
when space temp is satised.
“D” and “G” remain energized if cooling call is
made.”
3 “D” terminal only is energized with and without
a cooling call.
“D” terminal only is energized with and without a
cooling call
4 “D” terminal only is energized without a cooling
call.
“D” terminal is de-energized when a cooling call
is made.
“D” terminal is energized without a cooling call
“D” terminal is de-energized when a cooling call is
made”
* These setting and condition explanations assume humidity set point has not been satised and the equipment is attempting to
actively dehumidify

Bosch TSTBM3H2CPH6W-A Specifications

General

Brand	Bosch
Model	TSTBM3H2CPH6W-A
Category	Thermostat
Language	English