Menu Structure - Carrier WeatherExpert 48LC Installation Instructions Manual

Single package rooftop gas heat/electric cooling unit with puronr (r ---410a) refrigerant size: 07
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Using the Keypad with Settings and Parameters
To use the keypad when working with Setpoints, System
and Advanced Settings, Checkout tests and Alarms:
1. Navigate to the desired menu.
2. Press the
(Enter) button to display the first item in
the currently displayed menu.
3. Use the
and
buttons to scroll to the desired pa-
rameter.
4. Press the
(Enter) button to display the value of the
currently displayed item.
5. Press the
button to increase (change) the displayed
parameter value.
6. Press the
button to decrease (change) the displayed
parameter value.
NOTE: When values are displayed, pressing and
holding the
display to automatically increment.
7. Press the
(Enter) button to accept the displayed
value and store it in nonvolatile RAM.
8. "CHANGE STORED" displays.
Menu
Parameter
STATUS
ECON AVAIL
ECONOMIZING
OCCUPIED
HEAT PUMP
COOL Y1 ---IN
COOL Y1 ---OUT
COOL Y2 ---IN
COOL Y2 ---OUT
MA TEMP
DA TEMP
OA TEMP
OA HUM
or
button causes the
Table 8 – Menu Structure *
Parameter
Parameter
Default
Range and Increment
Value
NO
YES/NO
NO
YES/NO
NO
YES/NO
**
n/a
COOL
HEAT
OFF
ON/OFF
OFF
ON/OFF
OFF
ON/OFF
OFF
ON/OFF
nn_F (or _C)
0 to 140_F
( ---18 to 60_C)
nn_F (or _C)
0 to 140_F
( ---18 to 60_C)
nn_F (or _C)
---40 to 140_F
( ---40 to 60_C)
nn%
0 to 100%
9. Press the
(Enter) button to return to the current
menu parameter.
10. Press the
(Menu Up/Exit) button to return to the
previous menu.

Menu Structure

IMPORTANT: Table 8 illustrates the complete hierarchy.
Your menu parameters may be different depending on
your configuration. For example if you do not have a
DCV (CO
) sensor, then none of the DCV parameters
2
appear.
The menu hierarchy has been modified to reflect controller
configuration for 2- - speed indoor fan application in the
Staged Air Volume option.
NOTE: Some parameters in the menus use the letters MA
or MAT, indicating a mixed air temperature sensor
location before the cooling coil. This unit application has
the control sensor located after the cooling coil, in the fan
section, where it is designated as (Cooling) Supply Air
Temperature or SAT sensor.
EXPANDED PARAMETER NAME
{
ECONOMIZING AVAILABLE
YES = economizing available; the system can use outside air for free
cooling when required
ECONOMIZING ACTIVE
YES = Outside air being used for Cooling Stage 1.
NO
= Economizing not active
OCCUPIED
YES = OCC signal received from space thermostat or unitary controller.
YES = 24 Vac on terminal OCC.
NO
= 0 Vac on terminal OCC.
HEAT PUMP MODE
(Not available on 2---Speed configuration)
FIRST STAGE COOLING DEMAND (Y1---IN)
Y1---I signal from space thermostat or unitary controller for Cooling Stage 1.
ON
= 24 Vac on terminal Y1---I
OFF = 0 Vac on terminal Y1---I
FIRST STAGE COOLING RELAY OUTPUT
ON
= 24 Vac on terminal Y1---O; Stage 1 mechanical cooling called on
OFF = 0 Vac on terminal Y1---O; no mechanical cooling
SECOND STAGE COOLING DEMAND (Y2---IN)
Y2---I signal from space thermostat or unitary controller for Cooling Stage 2.
ON
= 24 Vac on terminal Y2---I
OFF = 0 Vac on terminal Y2---I
SECOND STAGE COOLING RELAY OUTPUT
ON
= 24 Vac on terminal Y2---O; Stage 2 mechanical cooling called on
OFF = 0 Vac on terminal Y2---O; no Stage 2 mechanical cooling
SUPPLY AIR TEMPERATURE, Cooling Mode
Displays value of measured mixed/cooled air from SAT sensor in fan
section.
Displays --- ---.--- if not connected, short or out---of---range. See Menu Note 2
DISCHARGE AIR TEMPERATURE, after Heating section
(Accessory sensor required)
Displays when Discharge Air sensor is connected and displays measured
discharge temperature.
Displays --- --- --- --- --- --- if sensor sends invalid value, if not connected, short
or out---of---range.
OUTSIDE AIR TEMPERATURE
Displays measured value of outdoor air temperature.
Displays --- --- --- --- --- --- if sensor sends invalid value, if not connected, short
or out---of---range.
OUTSIDE AIR RELATIVE HUMIDITY
Displays measured value of outdoor humidity from OA enthalpy sensor.
34
Notes

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