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| Products/ Temperature Controllers/ Freezer / Chiller Controller |
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| Application |
The Megachill and Microchill are specially designed for use with chillers. They integrate all the functions required by a single compressor system. It has a user friendly LCD screen to display all parameters & status of the devices.
It allows you to manage systems with Water or Air condensation. An integrated Antifreeze controller is built in alongwith a host of other features. |
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| Features |
6 Temperature Inputs
Manual Reset for critical faults like HP,LP,AFT, OSS
Special provision for Bitzer compressor reset incase of overload trip
Relay status via LED + LCD for instant diagnosis of faults.
Inbuilt Water level + Antifreeze Thermostat.
Hardware Program key to protect parameters. |
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| Function |
They are suitable for use with refrigerating units and control the cooling cycle (COMP relay output),evaporator ventilator operation (Evap. Fan relay output) and defrost cycles via resistances or by inverting the gas cycle(Heater relayoutput).The CRC-1100 has an additional relay for alarm signaling.
They are also provided with two NTC probe inputs, one for temperature control, the other, to be located onto the evaporator, to control the defrost termination temperature and to managed the fan.
The CRC-1100 and SZ-7523-P have a digital Input for High/Low Pressure. In addition to this, the CRC-1100 has an LCD read out and the SZ-7523-P has a 20A power relay output for compressor. |
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| Inputs / Outputs |
| Description of Inputs / Outputs (Megachill) |
| Analogue Inputs |
Digital Inputs (Trip Signals) |
Digital Outputs |
| Control Probe |
HP (High Pressure) |
Pump |
| Evaporator Inlet |
LP (Low Pressure) |
Compressor |
| Evaporator Outlet |
OSS - Oil Safety Switch |
Condenser Fan |
| Condenser Inlet |
Compressor Overload |
Alarm |
| Condenser Outlet |
Bitzer Compressor O/L |
Water Solenoid Valve |
| Internal Antifreeze Control |
Condenser Water Flow
Switch (For Water Cooled) |
Bitzer Comp Reset |
NTC thermistor type
With IP 68 Metal Casing |
Pump Overload |
Liquid SV for pump Down |
| Controlling Range-30 to 50°C |
Single Phase Preventor |
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| Resolution 0.5°C |
CCH-Crankcase Heater OnExternal Antifreeze
Thermostat Trip |
All digital outputs are
protected with 1.5A fuse |
| Water Level Input : |
Evaporator Water Flow Switch |
All are 10A, 230Vac |
| 1. Low Water Level |
R-phase |
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| 2. Medium Water Level |
Y-phase |
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| 3. High Water Level |
B-phase |
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