Emerson EC3-X33 Superheat Controller
Emerson EC3-X33 Superheat Controller
Description
EC3-X33 is a universal superheat controller used in conjunction with Emerson Electrical Control Valves EX4...EX8.
Emerson EC3-X33 Superheat Controller
Safety Instructions
• Read installation instructions thoroughly. Failure to comply can result in device failure, system damage or personal injury.
• The product is intended for use by persons having the appropriate knowledge and skills.
• Disconnect all voltages from system before installation.
• Do not operate system before all cable connections are completed.
• Comply with local electrical regulations when wiring.
Note: The EC3-X33 series contains a lead, acid gel rechargeable battery. The battery must NOT be disposed of with other commercial waste. Instead, it is the user’s responsibility to pass it
to a designated collection point for the safe recycling of batteries (harmonized directive 98/101/EEC). For further information contact your local environmental recycling center.
Emerson EC3-X33 Superheat Controller
Technical data
Power supply
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24VAC ±10%; 50/60Hz; 1A
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Power consumption
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25VA max. including EX4 … EX8
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Plug-in connector
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Removable screw terminals wire size 12-20 AWG
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Grounding
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1/4 in spade earth connector
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Protection class
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IP20
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Connection to ECD-002
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ECC-Nxx or CAT5 cable with RJ45 connectors
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Digital Inputs
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0/24VAC/DC for stop/start function
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NTC input
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Emerson temperature sensor ECN-N60
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4-20 mA Analog input
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Emerson PT4-07M / PT4-18M / PT4-30M
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4-20 mA Analog output
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For connection to any 3rd party controller with
12/24VDC power supply and appropriate burden
|
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Output alarm relay
Activated:
Deactivated:
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SPDT contacts 24V AC/DC, 2 Amp inductive load
During normal operation (no alarm condition)
During alarm condition or power supply is OFF
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Stepper motor output for EX4…EX8
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Maximum current 0.8A with nominal 24VDC operating voltage
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Emerson EC3-X33 Superheat Controller