Figure 4.2 Display Module; Figure 4.3 Keypad; Table 4-1 Display Module Leds; Table 4-2 Keypad Function - Carrier PrimeLINE 69NT40-561-200 Operation And Service Manual

Figure 4.2 Display Module

Table 4–1 Display Module LEDs
LIGHT
COOL Energized when the refrigerant compres-
(White / Blue) sor is energized.
HEAT Energized to indicate heater operation in
(Orange) heat mode, defrost mode, or dehumidifica-
tion.
DEFROST Energized when the unit is in defrost
(Orange) mode.
IN RANGE Energized when the controlled tempera-
(Green) ture probe is within specified tolerance of
setpoint. The controlling probe in perish-
able range is the SUPPLY air probe and in
frozen range is the RETURN air probe.
SUPPLY Energized when the supply air probe is
(Yellow) used for control. When this LED is illumi-
nated, the temperature displayed in the
AIR TEMPERATURE display is the read-
ing at the supply air probe. This LED will
flash if dehumidification or humidification
is enabled.
RETURN Energized when the return air probe is
(Yellow) used for control. When this LED is illumi-
nated, the temperature displayed in the
AIR TEMPERATURE display is the read-
ing at the return air probe.
ALARM Energized when an active or inactive shut-
(Red) down alarm is in the alarm queue.
T-362
FUNCTION

Figure 4.3 Keypad

Table 4–2 Keypad Function
KEY
CODE SELECT Access function codes.
PRE-TRIP Display Pre-Trip selection menu. Discon-
tinue pre-trip in progress.
ALARM LIST Display alarm list and clear alarm queue.
MANUAL Display selected defrost mode. Press and
DEFROST / hold this key for five seconds to initiate de-
INTERVAL frost using same logic as if the optional
manual defrost switch was toggled on.
ENTER Confirm a selection or save a selection to
the controller.
Arrow Up Change or scroll a selection up. Pre-trip
advance or test interrupt.
Arrow Down Change or scroll selection down. Pre-trip
repeat backward.
RETURN / Display non-controlling probe tempera-
SUPPLY ture (momentary display).
°C / °F Display alternate english / metric scale
(momentary display). When set to F,
pressure is displayed in psig and vacuum
in "/hg." "P" appears after the value to in-
dicate psig and "i" appears for inches of
mercury. When set to C, pressure read-
ings are in bars. "b" appears after the val-
ue to indicate bars.
BATTERY Initiate battery backup mode to allow set-
POWER point & function code selection if AC
power is not connected.
ALT MODE Switch the functions from temperature
software to DataCORDER software. The
remaining keys function the same as de-
scribed above except the readings or
changes are made to the DataCORDER
programming.
4–2
CODE PRE
SELECT TRIP
MANUAL
ALARM
DEFROST/
LIST
INTERVAL
ENTER
RETURN C
SUPPLY F
BATTERY ALT
POWER MODE
FUNCTION