York HIDS006B21S Service Manual page 157

(32) Power Supply ON/OFF 2 (Restarting Function After Power Failure) (d3)
This function is utilized to restart the unit operation automatically when the power supply is restored
after a power failure of over 2 seconds. In case of power failure for 2 seconds or less, the standard
unit retains all the operational functions and restarts the operation automatically. (The compressor
restarts operation after 3 minutes guard in addition to power failure time for up to 2 seconds.)
When this function is utilized in the condition that there is no person to operate the unit, monitor the
system for potential unit failure.
NOTES:
1. If power failure occurs during the stoppage of the unit, the unit remains stopped after the power
supply is restored.
2. When the compressor does not reach the fixed temperature, the system may not restart
automatically after turning on the power supply by hot-start control.
*Hot-start Control:
(33) Prevention for Cooling Discharge Air Temperature Decrease (d4)
This function is utilized to prevent discharge air temperature decrease during the cooling operation by
controlling Thermo-ON/OFF according to the discharge air temperature.
● Thermo-ON:
COOL/DRY operations continue for 3 minutes when discharge air temperature at 52
● Thermo-OFF:
The room temperature reaches the setting temperature when discharge air temperature at 56
or higher.
(34) Not Prepared (d5)...(for Ducted High Static Type)
(34) Prevention for Heating Discharge Air Temperature Decrease (d5)...(for Ducted Medium Static and
Slim Type)
This function is utilized to prevent discharge air temperature decrease during the heating operation by
making the actual fan speed lower than the speed indicated on the wired controller.
Indications on
Wired Controller
Actual Fan Speed
NOTE:
The above table shows when the optional function setting "Hi Speed" is set as standard (00) by the
wired controller.
(35) Not Prepared (d6)
(36) Not Prepared (d7)
(37) Not Prepared (E1)
(38) Not Prepared (E2)
(39) Not Prepared (E3)
(40) Not Prepared (E4)
(41) Not Prepared (E5)
(42) Indoor Fan Operation Time After Cooling Operation Stoppage (E6)
This function is utilized to prevent condensation upon cooling operation stoppage by setting "SLOW"
indoor fan operation to dry. "SLOW" operation (for 60 minutes or 120 minutes by setting) continues
even when the cooling operation is stopped.
(43) Not Prepared (E7)
(44) Fan Operation Control during Heating Thermo-OFF (E8)
This function is utilized to prevent the perception of cold draft by reducing the indoor fan speed during
heating Thermo-OFF.
Setting Condition
00
01
SM-18001-rev.1
EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING
The control program that does not operate the compressor even after the
power is turned ON if the compressor does not reach the fixed temperature.
Large
HIGH2 HIGH
HIGH HIGH
during
Fan Operation Thermo-OFF
LOW
SLOW
Fan Speed Small
MED LOW
LOW LOW
o o
F (11 C) or lower.
o o
F (13 C)
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