These products represent the most complete solution in the Infrared series for low temperature ventilated refrigeration units. The use of the most sophisticated manufacturing technology means that four relays are able to be housed inside an instrument for standard panel installation (32x74mm). In most models, the compressor relay is 16 A. These controllers perform the functions of thermometer and thermostat, and in addition manage the defrost using different algorithms (by temperature or time), as well as controlling the evaporator fans. The fourth relay is used as a multifunction auxiliary output: in fact, it can be programmed as an alarm output (used to stop the compressor if necessary), or for managing the condenser fans, delayed second compressor or the cold room light.
Technical features |
Power supply | IR33**0*: 12 Vac (-15% to +10% ) or 12 Vdc (0% to +50%), 50/60 Hz
IR33**L*: 12/24 Vac (-15% to +10% ), 50/60 Hz
IR33**H*: 115/230 Vac (-15% to +10% ), 50/60 Hz
IR33F0E*: 230 Vac (-15% to +10% ), 50/60 Hz |
Operating conditions | -10T65°C, <90% rH non-condensing |
Storage conditions | -20T70°C, <90% rH non-condensing |
Regulation range | -50T90°C with standard CAREL NTC probes
-40T150°C wide range NTC probes;
-50T150°C with PTC probes |
Inputs | IR33**0*/L*/H*: 2 for NTC or PTC probes, 2 digital inputs
IR33F0E*: 2 for NTC or PTC probes, 1 digital |
Outputs | IR33C00*/L*/H*: 1 relay 250 Vac, 12 (2) A res. e 3 relay 250 Vac, 8 (4) A res
IR33F00*/L*/H*: 1 relay 250 Vac, 12 (2) A res. e 2 relay 250 Vac, 8 (4) A res.;
IR33F0E*: 2 relay 250 Vac, 8 (4) A res. e 1 relay 250 Vac, 5 (1) A res. |
Index of protection | IP65 with panel mounting and gasket fitted |
Installation | panel mounting |
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