Instruction Manual for RY1005A Temperature Controller
Part 1: Overview
Function Description:
This controller is suitable for controlling a water chiller. It can accurately control the water temperature by controlling the
start-stop of the refrigeration compressor and the control refrigerant solenoid valve. In smart mode, it can automatically
adjust the water temperature setting value based on the change in ambient temperature.
Controller Features:
Uses a refrigerant solenoid valve to control compressor cooling capacity.
Main Technical Specifications:
Power Supply: 24VDC -30 /+10%
Rated Power: Less than 3W
Relay Outputs:
Compressor Output Relay: 17A relay (four-pin relay)
Solenoid Valve Output Relay: 10A relay (five-pin relay)
Signal and Indicator Light Relay: 2A relay (eight-pin relay)
Inputs: Two NTC sensors with a resistance of 10 KΩ at 25 °C and a wire length of 1 meter.
Four Buttons: SET, RST, Up, Down
Three-digit LED temperature display (temperature display resolution: 0.1 degree)
Opening Size: 30*71
There are two status indicator lights, an alarm buzzer, indicating the working status of the controller.
Temperature Controller Parameter Setting Menu
The adjustable parameters of the temperature controller are listed in the table below:
Order Code Setting Item
Range
Factory
Setting Remarks
1 F0 Set Temperature
F9～F8/-30～50
25.0 Intelligent Temperature Control
Mode/Constant Temperature Mode
2 F1 Temperature Difference Value –15～5
-2.0
3 F2 Cooling Hysteresis
0.1～9.0
0.8 Accuracy: 0.1 degree
4 F3 Control Mode
0～1
1
1 Intelligent / 0 Constant Temperature
5 F4 High Water Temperature Alarm 1～80
20
6 F5 Low Water Temperature Alarm 1～40
25
7 F6 High Air Temperature Alarm 40～50
45.0
8 F7 Password
00～99
6
9 F8 Maximum
Set
Water (F9+1)～50
30.0
Temperature
10 F9 Minimum
Set
Water -30～(F8-1)
20.0
Temperature
11 A0 Heating Hysteresis
0.1～5.0
2.0
12 A1 Startup Alarm Delay
0～30
10 minutes
13 A2 Startup Delay
10～99
30 seconds
14 A3 State Transition Delay
0～99
5
seconds
15 A4 Room Temperature Calibration -10.0～10.0
0.0
