Dixell IC121CX-11130 Professional Temperature Controller: Complete Guide for Industrial Refrigeration Control

18 Februari 2026

Historical parts record: Photos and notes below belong to this record. Confirm the offered unit’s full model, condition and available test evidence before ordering.

What this delivery is: a Dixell IC121CX-11130 multifunction temperature controller — built by Copeland Controls in Alpago (BL), Italy, the Dixell line under the Copeland brand — brand new in the factory box, one-year warranty per the record, 0.5 kg, received 2025-11-24. Two brand names are correct here: the record says DIXELL and the box says COPELAND, because Dixell became part of Emerson and then Copeland — the controller inside is the same Italian-made product either way, and the rear label reads Copeland Controls, Alpago (BL), Italy. The unit is a 2024 build: box code X0ICHJEPC300-S00, Lot 44/2024, matching the rear label's 001# 44/2024.

Reading the controller

The IC121CX is the multi-output member of Dixell's IC121 family: a panel-mount controller with a two-line LCD (process value above, second line for the set point or probe two), six keys — snowflake and sun for the cooling and heating quick-set functions, SET, up/down arrows and the clock-marked menu key — and Copeland moulded across the bezel. The rear label carries the working specification in one block: temperature range −10 to 60 °C, humidity 20 to 85%, power 5 VA max on a 24-volt AC/DC supply, NTC probes. The terminal drawing below it is the reason this model gets specified: four NTC probe inputs (Pb1–Pb4), five digital inputs (LP, ID1, ID2, HP, ID5 — the low-pressure, high-pressure and general alarm inputs a refrigeration rack expects), a 4-20 mA analog output, a 12 VDC 40 mA open-collector output, four relay outputs on terminals 15–22 plus a fifth (RL5) on 25–26, a Hot Key/TTL programming port, and a remote display connection. Two white panel clips in the box snap the controller into a panel cut-out without screws.

Item	Value on the label / box / record
Product	Dixell IC121CX-11130 multifunction temperature controller (Copeland Controls brand)
Origin	Copeland Controls, Alpago (BL), Italy — Italian-made per label and record
Rating	T −10÷60 °C; R.H. 20÷85%; Power 5 VA max; Supply 24V~; Probe NTC; firmware V1.0
Display / keys	Two-line LCD; snowflake, sun, SET, up, down, menu keys
Inputs	Pb1–Pb4 NTC probes; digital inputs LP, ID1, ID2, HP, ID5; Hot Key/TTL programming port; remote display connection
Outputs	4 relays (terminals 15–22) + RL5 (25/26); 4-20 mA analog out; 12 VDC 40 mA open-collector out
Codes	Box X0ICHJEPC300-S00, IC121CX-11130, Lot 44/2024; rear label 001# 44/2024, ICHJEPC300; CE and cURus
Condition / quantity / weight	New, genuine, 1-year warranty; 1 pc; 0.5 kg; received 2025-11-24

Use notes

This controller class runs a full refrigeration logic set — compressor, defrost, evaporator fans, alarm management — on the relay bank, with the probe set covering cabinet, evaporator and display temperatures. Wire the NTC probes to Pb1–Pb4, the pressure switches to HP and LP, land the compressor and fan contactors on the relay terminals, and the menu structure does the rest through the six keys or the Hot Key port for bench programming before the panel goes in. The 4-20 mA output mirrors the process value to a supervisory system, and RL5 is the spare contact for a light, heater or alarm bell. Panel mounting is the two white clips into a standard cut-out — no screw brackets needed. A control-side comparison from this restore series: the Omron E5CN-HR2M-500 temperature controller, a single-loop unit next to this multi-output rack controller.