hydro-s 7024510, Инструкция по установке и эксплуатации

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-13-
downtime (DT) delay before load is enabled
6 T2 enable Enabling T2 sensor 0: Disable; 1: Enable 0
7 T1C T1 sensor calibration – 9°C to +9°C 0°C
8 T2C T2 sensor calibration – 9°C to +9°C 0°C
9 T2LS T2 under-temperature value 3°C to 20°C 7°C
A
Power failure
memory
Power failure memory validity 0: Invalid; 1: Valid 1
Protection Functions
T2 under-temperature protection
In heating mode, if T2 is detected equal to or lower than T2LS (7°C) for consecutive 5s, T2
under-temperature protection will be reported. The unit will not start if there is no load, and
will stop load output if it is already started.
When T2 is higher than T2LS plus 2 degrees, the protection is automatically removed. Shutting
down or switching the mode to cooling will clear this protection.
T1 sensor fault
If the thermostat detects that T1 is higher than 99°C for consecutive 5s, the fault of T1 sensor
short-circuit is reported. If T1 is detected lower than – 40°C for consecutive 5s, the fault of T1
sensor open-circuit is reported. In either case, the load automatically stops running.
The fault automatically recovers. Shutting down or mode switching cannot clear the fault.
T2 sensor fault
When T2 sensor is disabled, the corresponding control logic and troubleshooting are invalid.
If the thermostat detects that T2 is higher than 99°C for consecutive 5s, the fault of T2 sensor
short-circuit is reported. If T2 is detected lower than – 40°C for consecutive 5s, the fault of T2
sensor open-circuit is reported. In cooling mode, the alarm is generated but the fault is not
rectified. In heating mode, the unit is stopped for troubleshooting.
The fault automatically recovers. Except disabling T2 sensor, shutting down or mode switching
cannot clear the fault.
Fault Codes
No. Fault Code Fault Description
1 E0 T2 under-temperature protection
2 E1 T1 sensor short-circuit fault
3 E2 T1 sensor open-circuit fault
4 E3 T2 sensor short-circuit fault
5 E4 T2 sensor open-circuit fault
6 E5 Thermostat hardware fault