York IDM030B21E Series, Service Manual

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5-26
SM-16005-rev.2
EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING
(22) Thermistor of Wired Controller (C8)
This function is utilized to control the unit by the built-in thermistor of the wired controller (wired
controller thermistor) instead of the inlet air thermistor.
Set this function at “01” or “02” when utilizing this function.
However, even if this function is set at “01” or “02”, if the detecting temperature is abnormal due to the
failure of the thermistor of the wired controller, etc., the control is changed to the inlet air thermistor of
the indoor unit automatically.
(30) Power Supply ON/OFF 1 (Automatic Operation when Power Supply Is ON) (d1)
This function is utilized to run/stop the unit by turning ON/OFF the power supply.
When this function is utilized in the condition that there is no person to operate the unit, monitor the
system for potential unit failure.
NOTE:
The unit is stopped even when the power supply is turned ON/OFF due to power failure. If power
failure occurs during the stoppage of the unit, the operation is restarted after the power supply is
restored.
(31) Not Prepared (d2)
(26) Not Prepared (CC)
(27) Not Prepared (Cd)
(28) Not Prepared (CE)
Do not change this function when using this unit. When it is used, the function of outdoor air intake may not work
effectively.
(29) Change of Louver Swing Angle (CF)
This function is utilized to the change louver swing angle.
Setting
Condition
Louver Swing Angle
(Air Discharge Angle)
Purpose
00 7 Steps Standard Operation
01 Lower 2 Steps are Cut Draft Prevention
02 Higher 2 Steps are Cut For High Ceiling
NOTE:
When changing the setting, turn OFF the power supply or
allow the louver to make one complete swing fully in the auto
swing mode to validate the setting.
Setting
Condition
Logic of
Contact
Sequence
Activation
00 A Contact Normal
Forced
Stoppage
01 B Contact Normal
Forced
Stoppage
Contact "Close" Contact "Open"
Indoor
PCB
Indoor
PCB
Air
Discharge
Angle
(23) Not Prepared (C9)
(24) Not Prepared (CA)
(25) Selection of Forced Stoppage Logic (Cb)
This function is utilized to select the logic of the contact for forced stoppage signal input.
The setting condition and the logic of the contact are as shown below.
Selected Thermistor Setting Controlled Indoor Temp.
Thermistor of Wired Controller
00 Indoor Suction Thermistor
01 Thermistor of Wired Controller
02
Average Value of Indoor Suction Thermistor and
Thermistor of Wired Controller