C L I M AT E M A S T E R W AT E R - S O U R C E H E AT P U M P S
C o n s o l e s
R e v. : 5 N o v. , 2 0 0 9 B
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C l i m a t e M a s t e r W a t e r- S o u r c e H e a t i n g a n d C o o l i n g S y s t e m s
Unit-Mounted Controls, TRC & CCE Units, Rev. B
CCE Revision B models and TRC models include digital
display unit-mounted controls (see picture, below). Either
manual changeover (MCO) or auto changeover (ACO)
controls are available, as indicated by the model number.
The room temperature will appear after the set point
has been displayed for 3 seconds. To read “set point”
press “SET”. To change heating or cooling setpoints,
slide switch to desired mode (i.e. heating or cooling), and
press the arrow up or arrow down key to change the set
point. The differential between heating and cooling set
points is factory set at 3°F (1.5°C).
Unit-mounted controls are shipped from the factory
for display in degrees Farhenheit. To change display to
Celcius, follow the instructions below.
1. Turn power OFF.
2. Remove the thermostat cover (NOTE: Make sure to
depress the tab at the top of the thermostat to avoid
damaging the cover) F/C jumper is located at top left
of display case (see Fig 6).
3. Remove the Jumper for °C selection; position
jumper on both pins for °F selection.
4. Turn power ON.
5. Press RESET if desired measurement scale has not
been changed (See Fig 6).
Figure 5: Example MCO Thermostat
Figure 6: °F/°C Changeover
Electrical - Low Voltage
°F
°C