7 Control and function elements
Front Rear
Position Designation
1 Main switch
2 Four-digit temperature display LED, menu display
3 Control indicator - alarm
4 Edit keys
Temperature setpoint increase or decrease
Press the key briefly for step-by-step changes.
Press and hold the key for fast change of setpoint.
5 OK key 1. Switch the device on/off.
2. Store value / parameter.
6 Pump switchover,
Delivery
external…….internal
7 Adjustable excess temperature safety device
8 Control indicator - cooling
9 Control indicator - heating
10 USB host interface (type A)
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