![background image](http://html1.mh-extra.com/html/carrier/45j/45j_installation-start-up-and-service-instructions-manual_2564189020.webp)
20
Fig. 17 — CSP-4702 Controller/Actuator
Thermostat Installation
For proper operation, mount the thermostat on an interior
wall. Do not mount the thermostat in a location that will cause it
to be affected by direct sunlight or other heat or cold sources.
The thermostat should be clear of all obstructions so it can prop-
erly sense the room temperature. Complete rough-in wiring at
each location prior to thermostat installation. Cable insulation
must meet local building codes.
1. Remove thermostat cover. If the thermostat is locked on the
back plate, turn the two hex screws in on the bottom of the
cover (in the two outermost holes) in the back plate
CLOCKWISE until they clear the cover. Do not remove
these screws completely. Swing the thermostat up and
away from the back plate to remove it.
2. Route the wires through the opening in the back plate.
3. Install the back plate directly to the junction box using the
screws supplied with the thermostat. Verify the hex screws
used for securing the cover are located at the bottom before
installing.
4. Connect the wires to the terminal block. Refer to the wiring
diagram located on the inside cover of the control enclo-
sure of each unit showing the wiring terminations.
5. Replace the thermostat cover. Turn the two hex screws
COUNTER CLOCKWISE until they are flush with the
bottom cover and secure it to the back plate.
Programming Thermostat
1. The thermostat has three sequences that are selectable from
the display screen. To access the configuration menu on the
thermostat, press and hold the Up and Down arrows for 10
seconds until the display starts flashing “LIMITS”. Use the
Up and Down arrows to scroll between the different menu
options or set a specific value. Use the Setpoint button to
select a menu or set a value.
2. To set the minimum and maximum airflow limits, Use
AO1 Min and AO1 Max or AO2 Min and AO2 Max. Use
the Table 16 to determine thermostat setting for the CFM
per inlet size.
3. For details on how to program the thermostat for each
control sequence see the specific control sequence sub-
mittal.