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Name:	Carel Electronic Controller IR33Z7HR20
Brand:	Carel
Model No.:	IR33
Part No.:	IR33Z7HR20
Country of origin:	China
Output Type:	Relay
Minimum Operating Temperature:	-50°C
Digital Comms:	RS485

Product Description

Carel Electronic Controller IR33Z7HR20

Specifications

More Information
Manufacturer	Carel
Product Type	Refrigeration
Product Length	3 inches (7.620 cm)
Product Width	2.875 inches (7.303 cm)
Product Height	1.375 inches (3.493 cm)
Product Weight	0.3 lbs (0.136 kg)
Country of Origin	China
Schedule B Number	9032.89.6085
Shipping Length	4.75 inches (12.065 cm)
Shipping Width	4.75 inches (12.065 cm)
Shipping Height	2.5 inches (6.350 cm)

Carel Digital Thermostat IR33 Series

MODELS

ir33: 12 Vac

IR33S00N00

IR33S00N0A

IR33Y00N00

IR33C00N00

IR33C00N0A

IR33C00R00

ir33: 12 to 24 Vac

IR33S0LN00

IR33S0LR00

IR33S0LC00

IR33Y0LR00

IR33C0LN00

IR33C0LR00

IR33C0LB00

IR33C7LN00

IR33C7LR00

IR33C7LN01

ir33: 115 Vac

Air Conditioner Carel Refrigeration Controls Digital Thermostat IR33 Series

The IR33Z7HR20 model controller features 4 relay outputs for controlling the minimum on or off times of a single or multiple outputs to protect loads. This protection avoids control swings for more consistent and reliable functionality.

The IR33Z7HR20 also features the standard on/off functionality for more versatile and application specific compatibility.

Optional Expansion

Suitable for use with remote controls, the IR33 series can use an infrared remote control allowing access to all main functions as well for configuring system parameters. This allows easy set up and use of all IR33 controllers from a distance.

Find the IRTRUES000 IR33 Remote Control here: 745-7999>

Programming keys are a simple and effective way to quickly program controllers both when on and also when not connected to a power supply. This disconnected programming function can reduce the risk of errors in the controller. A programming key allows for fast and effective technical service and can be used in just a few seconds for ease.

Find the IROPZKEY00 Programming Key Here: 745-8002

IR33 Universal Electronic Controllers

The IR33 series of universal electronic controllers from Carel are a panel mounted controller offering an updated and upgraded module to replace its IR32 predecessor. The IR33 series controllers feature two independent control loops and now with the addition of auto tuning and a real-time clock for cycle and alarm management, the IR33 range of controllers fare suitable for a range of applications.

Featuring a simple user interface with a clear LED screen and large control buttons, the controllers are easy to commission as well as coming in a standard 76.2 x 34.2mm size suitable for a 71 x 29mm panel cut out. Powered from 12 to 24 V ac/dc or by 115-230 V ac the units can also be used with transformers to for powering low voltage controllers from 110 V ac or 230 V ac.

All of the IR33 series controllers are capability of network connectivity for both monitoring and programming purposes to make the IR33 controllers truly versatile. Using the optional RS-485 series interface you can content any of the SSR, Relay or Relay/Analogue units for complete ease of use.

Auto Tuning

Auto tuning within the controller gives vital accuracy during configuration. The auto tune function uses rule based calculations typically used by experienced engineers to configure the controller either at the set-point or whist the load is being heated from an ambient temperature.

Supplied with a default factory setting, the PID parameters allow standard control and functionality but are not optimised for the system the IR33 will control. Auto-tuning the controller is used to fine-tune the 3 control parameters involved to ensure the controller is optimised for any application.

Real-time Clock

The addition of a real-time clock (RTC) to the IR33 series aids in the management of working cycles within the controller as well as to support logging alarms. The RTC in the controller is a low power resource for accurate time keeping freeing up system power for accurate monitoring and control.