Date And Time; Operation Switch; Select Language - York EX Series Installation, Operation & Maintenance Instructions Manual

SECTION 6 – OPERATION

DATE AND TIME

The date and time settings can be changed if you press
the Date and Time button above the Main button. The
Date and Time screen displays. Use the following pro-
cedure.
When you enter the date information, note
that the format to use is: YYYY / MM / DD.
1. Press the Change button.
2. Enter the correct date and time.
3. Press the Set button to set the time.
4. Press the Start button to restart the clock.
If the clock is not keeping the correct time, use the fol-
lowing to fix it:
1. Press the Correct button to specify a correcting
amount (+ or -).
2. Press the Set button to set the new time.
The date and time may also be updated if you press
the Date and Time button on the Setting screen. The
procedure is the same.

OPERATION SWITCH

In this screen section, choices can be made about the
mode of operation for the various devices. Use the but-
tons to make your choice. The choices are:
116
Forced Dilution: indicates whether forced dilution is
on or off.
Refrigerant Pump: indicates whether the refrigerant
pump is operating automatically (Auto mode) or is
stopped (Stop mode)
Operation Mode: indicates if the unit is operation
in cooling or heating mode. To change the operation
mode, press and hold the Cooling or Heating button
for 15 seconds.
Simultaneous: indicates whether the simultaneous
residential hot water supply operation with the auxilia-
ry heat exchanger is on or off (auxiliary heat exchanger
equipped model only). The ON/OFF buttons control
simultaneous operation.
RHW only operation: indicates whether the residen-
tial hot water supply only (sole) operation with the
auxiliary heat exchanger is on or off (auxiliary heat
exchanger equipped model only). To change the opera-
tion mode, press and hold the OFF or ON button for
15 seconds.
Fuel Type: indicates whether the fuel to be used is
gas or oil (dual fuel burner equipped model only). The
LD20029a
Gas/Oil buttons select the fuel to use.
LD20029a
Purge Mode: the Auto and Manual buttons control
the purge operation. The lit button indicates if the
purge mode is Automatic or Manual.
Manual Purge: The ON and OFF buttons control the
manual purge operation. The lit button tells you if the
manual purge operation is running or not. If you press
the Purge Mode Auto button, the purge is done auto-
matically. If you press the Purge Mode Manual button,
the purge starts when you press the Manual Purge ON
button. The purge stops when you press the Manual
Purge OFF button.
Purge Route (if available): Indicates whether the
purge route to be used is from the purge tank or the
absorber. The Tank and Abso buttons select the purge
route to be use.
Any of the above may be changed.

SELECT LANGUAGE

Press the button to choose the language to be shown
in the Control Center. Various languages are available:
Japanese, English, Chinese, etc.
FORM 155.32-ICOM1.EN.GB
ISSUE DATE: 10/13/2017
JOHNSON CONTROLS