Analog Controls; Balancing Procedures (Control Sequences 2100-2105); Thermostat Installation; Programming Thermostat - Carrier 35E Installation And Start-Up Instructions Manual

ANALOG CONTROLS

Balancing Procedures (Control Sequences
The analog electronic control system is a
2100-2105) —
pressure independent volume reset control that uses a KMC
CSP-4702 controller-actuator (see Fig. 13).
Adjustments for the minimum and maximum airflows are
made at the thermostat.
The thermostat (CTE-5202) operates on a 16 VDC power
supply from the CSP 4702 controller and outputs a 0 to 10
VDC signal on the AO1 and AO2 terminals. AO1 is used as
the cooling output and AO2 is used as the heating output.
Thermostat Installation —
mount the thermostat on an interior wall. Do not mount the
thermostat in a location that will cause it to be affected by di-
rect sunlight or other heat or cold sources. The thermostat
should be clear of all obstructions so it can properly sense the
room temperature.
Complete rough-in wiring at each location prior to thermo-
stat 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.
For proper operation,
Fig. 13 — KMC CSP-4702
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 bot-
tom before installing.
4. Connect the wires to the terminal block. Refer to the wir-
ing diagram located on the inside cover of the control en-
closure 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 be-
tween 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 8 below 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.
13