Changing the Set Point: Carel Easy Freeze Digital Controller - YouTube
User manual
ir33
IR33V7LR20 Carel | Carel IR33 Panel Mount PID Temperature Controller, 76.2 x 34.2mm, 1 Output Relay, 12 → 24 V ac Supply Voltage | 745-7949 | RS Components
Carel ir33 temperature controller manual
Carel Controller Ir33 | PDF | Fahrenheit | Computing
IR33W9MR20 | Carel IR33 Panel Mount PID Temperature Controller, 76.2 x 34.2mm, 2 Output Relay, 24 V ac/dc Supply Voltage | RS