Johnson Controls York DPC-1 Operating And Maintenance Instructions Manual Download Page 10

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Fig. 6

Fig. 7

EMERG HEAT.

Controls the system in

emergency heating mode (operates only
if an electric heater, optional accessory, is
installed).

OFF.

Turns the air conditioning system off or

could be use to set fan only mode.

Cooling

Press

��

button alternatively until

the cool symbol

appears on the

screen (along with the word

COOL

)

(Fig. 3).

Once the operating mode is set, select
the temperature setting by pressing but-
ton

so as to set a higher

or lower temperature. The temperature
seting appears along with a small sym-
bol that represents a thermometer, and
remains on screen for 5 seconds. When
the temperature setting disappears,
the ambient temperature appears once
again.

After a few minutes, the cooling system
will begin to operate and the cooling
symbol on screen will start to flash.

Heating

Press the

��

button alternatively until

the heating symbol appears on the
screen (along with the word

HEAT

) (Fig.

4).

Once the operating mode is set, select
the temperature setting by pressing but-
ton

so as to set a higher

or lower temperature. The temperature
setting appears along with a small sym-
bol that represents a thermometer, and
remains on screen for 5 seconds. When
the temperature setting disappears,

the ambient temperature appears once
again.

After a few minutes, the heating system
will begin to operate and the heating
symbol on screen will start to flash.

Automatic

Press the

��

button alternatively until

the heating and cooling

symbols

appear on the screen (along with the
word

AUTO

) (Fig. 5).

Select a temperature setting for the cool-
ing mode and another for the heating
mode as desribed in paragraphs a) and
b). In this operating mode, the

COOL

temperature setting should be least 1°C
above the

HEAT

temperature setting,

which is the minimum differential allowed
by the thermostat. Press the

��

but-

ton repeatedly displays the cooling or
heating set points. After 5 seconds the
ambient temperature is displayed (Fig.
5).

After a few minutes, the system will beg-
ing to operate, switching automatically
between the heating and cooling modes
so as to keep the ambient temperature
between the two settings. When either
the heating or cooling mode are in opera-
tion, the corresponding symbol starts to
flash.

Automatic programming

If this option is not selected, it will not
appear (can be selected by setting mi-
cro-switch No. 2 to ON). Press the

��

button alternatively until the heating
and cooling

symbols are displayed

(along with the words

AUTO PROG

The selected time schedule profile is
also displayed (Fig. 6).

For correct operation of this mode, first
you must set the time on the clock and
select the number of the day of the week.
Then select the desired time sched-
ule profile for the different days of the
week. See the section on Programming
Menu.

Select a temperature setting for the cool-
ing mode and another for the heating
mode, in accordance with the program-
ming menu. (Fig. 6)

In this mode you must define the tem-
perature set point for day, night and
unoccupied conditions.

After a few minutes, the system will start,
switching automatically to either the heat
or cool mode and keeping the ambient
temperature between the selected set
points and in compliance with the time
schedule profile selected.

Emergency heat

Press the

��

button alternatively until

the words

EMERG HEAT

are displayed,

along with the heating symbol. After
a few minutes, the emergency heat will
begin to operate and the heating symbol

will flash on the screen.

In this operating mode, the compressor is
always inoperative and the auxiliary and
emergency heaters (optional accesso-
ries), if installed, are used for heating.

This operating mode can be used for
heating when there is any problem with
the compressor (Fig. 7).

Fig. 3

Fig. 4

Fig. 5

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