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Display functions – Carrier 39L User Manual

Page 69

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CONTROL OPERATION

Accessing Functions and Subfunctions —

See

Table 12. Refer also to Table 11, which shows the 6 func-
tions (identified by name) and the subfunctions (identified
by number). Table 13 shows the sequence of all the elements
in a subfunction.

Display Functions

SUMMARY DISPLAY — Whenever the keyboard has not
been used for 10 minutes, the display automatically switches
to an alternating summary display. This display has 3 parts
(day/time, mode, and alarms), shown below, which alternate
in continuously rotating sequence.

Display

Expansion

TUE 12:45

TODAY IS TUE, TIME IS 12:45

MODE 23

UNOCCUPIED HEATING

2 ALARMS

THERE ARE 2 ALARMS DETECTED

Return to the previous display at any time by pressing

.

Table 12 — Accessing Functions and Subfunctions

OPERATION

KEYBOARD

ENTRY

DISPLAY

DESCRIPTION

To access a function, press the subfunction number and the function name key.
The display shows the subfunction group

SETPOINT

System set points

To move to the other elements, scroll up or down using the arrow keys

OHSP X

Occupied heating set point

OCSP X

Occupied cooling set point

UHSP X

Unoccupied heating set point

When the last element in a subfunction has been displayed, the first element
is repeated

UCSP X

Unoccupied cooling set point

To move to the next subfunction, it is not necessary to use the subfunction
number. Pressing the function name key advances the display through all sub-
functions within a function and then back to the first

DEMAND

Demand limit set points

TIME

Time of day and day of week
display

DAYLIGHT

Daylight savings time

HOLIDAY

Holiday display

SETPOINT

System set points

To move to another function, either depress the function name key for
the desired function (display shows the first subfunction)

X ALARMS

X alarms detected

or

Access a particular subfunction by using the subfunction number and the func-
tion name key

SETPOINT

Current operating set points

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