York YGWH 115 Installation, Commissioning & Operation page 47

Form 6S6I-B01C-EOMA-EN (0318)
Code 111: Safety Fault-Return Chilled Temp. Sensor Fault
When there is a fault or disconnection in the Return Chilled Temperature Sensor or connection plug is pulled out, the
unit will shut down and the message will be displayed. This fault has to be manually reset after the sensor recovers.
Code 112: Safety Fault-SYS1 Discharge Temp. Sensor Fault
When there is a fault or disconnection in the SYS1 Discharge Temperature Sensor or connection plug is pulled out,
the 1# unit will shut down and the message will be displayed. This fault has to be manually reset after the sensor
recovers.
Code 113: Safety Fault-Leaving Hot Liquid Temp. Sensor Fault
When there is a fault or disconnection in the Leaving Hot Liquid Temperature Sensor or connection plug is pulled
out, the unit will shut down and the message will be displayed. This fault has to be manually reset after the sensor
recovers. (Only available when running mode is Heat Pump)
Code 114: Safety Fault-Return Hot Liquid Temp. Sensor Fault
When there is a fault or disconnection in the Return Hot Liquid Temperature Sensor or connection plug is pulled
out, the unit will shut down and the message will be displayed. This fault has to be manually reset after the sensor
recovers. (Only available when running mode is Heat Pump)
Code 115: Safety Fault-Evaporator Pressure Out Of Range Fault
This safety fault is set when the unit is running, the Evaporator Pressure is over 510 kPa while condenser pressure
is less than 300 kPa, or the leaving Chilled Temperature is less than 18 °C, or the leaving Chilled Temperature is
not less than 18 °C and lasts for over 30 minutes, the unit will be shut down and the message will be displayed in
the status bar. This fault has to be manually reset after the unit is stopped. (Only available when running mode is
Air-conditioner or Ice-Storage)
Code 116: Safety Fault-Condenser Pressure Sensor Fault
When there is a fault or disconnection in the Condenser Pressure Sensor or connection plug is pulled out, the unit
will shut down and the message will be displayed. This fault has to be manually reset after the sensor recovers.
Code 117: Safety Fault-SYS1 Oil Pressure Sensor Fault
When there is a fault or disconnection in the SYS1 Oil Pressure Sensor or connection plug is pulled out, the 1# unit
will shut down and the message will be displayed. This fault has to be manually reset after the sensor recovers.
Code 118: Safety Fault-Condenser High Pressure
This safety fault is set when the Condenser Pressure goes above the 'High Press. Stop Setpoint' for 1 second,
the unit will shut down and the message will be displayed. This fault has to be manually reset after the Condenser
Pressure is less than the 'High Press. Stop Setpoint'.
The 'High Press. Stop Setpoint' is configurable on the HMI, and its default value is as below:
Air-conditioner/Ice-Storage: 1090kpa;
Heat Pump: 1356kpa; High Temperature Heat Pump: 1745kpa.
Code 119: Safety Fault-Evaporator Low Pressure
This safety fault is set whenever the Evaporator Pressure is less than the 'Low Press. Stop Setpoint' and lasts for
10 seconds, the unit will shut down and the message will be displayed. This fault has to be manually reset after the
Evaporator Pressure is larger than the 'Low Press. Stop Setpoint'.
The default value of 'Low Press. Stop Setpoint' is as below:
Air-conditioner/ Heat Pump: 165kPa;
Ice-Storage: 91kpa.
Code 120: Safety Fault-SYS1 Discharge High Temp.
The 'cycling stop-SYS1 Discharge High Temp.' is set when the 1#Discharge Temperature goes above the Protection
Point for over 0.5 second, and this cycling stop has happened no more than three times during the last 90 minutes.
And the cycling stop will be released automatically and the 1# unit will cycle start after the 1#Discharge Temperature
falls below the Protection Point. This safety fault is set when the Discharge Temperature goes above the Protection
Point for over 0.5 second, and the cycling stop of 'Discharge High Temp.' has happened more than three times
during the last 90 minutes. This safety fault has to be manually reset after the 1#Discharge Temperature falls below
the Protection Point.
Protection Point: Air condition/Ice Storage: 95°C, Heat Pump: 100°C.
EN
8-3