IMC Eagle 2 Indoor Pool - Temperature Limited Differential Controller
• 15 amp rated
• Single Relay
• With line cord & receptacle
• Includes 2 sensors
EC2C2-1500-PL is microprocessor programed specifically for optimal performance of "drainback" systems used for heating pools. The Large easy-to-read 40 character (2x20) backlit LCD display shows every parameter measured and controlled by the onboard microprocessor. Line powered – single relay with conduit holes for permanent wiring. With NON-isolated Data Port. 20 amp rated. Includes 2 industrial grade 10K IMC thermistors.
Product Application: For solar pool heating systems - Indoor use only
• Power relay that can handle up to 20 A or 2 HP
• Fault LED indicators for simple diagnostics
• Electrostatic discharge protected electronics
• Polyester coated 16 gage rugged steel enclosure with features for
• Reliable operation when installed where the ambient swings do not
exceed -10 to 120 °F
• With IMC’s exclusive “DATA PORT” designed for use with one of
these OPTIONAL devices:
- Remote 4 Line LCD Display
- Data Adapter to PC's RS-232
- Data Adapter to PC's USB
- SD Card Recorder
- BACNET Interface
This unique transmitter allows these devices to be located up to
500 feet away connected with a conventional CAT-5 cable.
Local LCD Display:
The LCD display has 2 lines of 20 characters each. The first line permanently displays the collector and the storage temperatures. The second line can be paged (switched) by pressing the black button. These 4 pages (as sampled below) display all system information including override messages.
Controller Power Input: 2.5 Watts Minimum @ 120VAC 10% 50/60HZ
Power Relay Contact Ratings:
30VDC MAX. or 240VAC MAX.
Normally Open (NO):
20A Resistive @ 120VAC & 240VAC
1 HP @ 120VAC; 2 HP @ 240VAC
20A@ 30VDC; TV-5
Normally Closed (NC):
15A Resistive @ 120VAC & 240VAC
1/4 HP @ 120VAC; 1/2 HP @ 240VAC
Relay Action: 30sec delay ON; no delay OFF
Differential: ON-Adjustable 4 to 16 F; OFF-fixed 2 F reset
POOL High Limit: ON- Adjustable 70 to 105 F;OFF-fixed1.5 F reset
Accuracy: +/- 1 F
Sensors: 10K @ 77 F (25 C) Rated to 400 F
Environmental: -10 to 120 F @ 0 to 95 %RH
Dimensions & Weight: 5.00”W x 6.12”H x 2.50”D; Appx. 2.5 lbs
Sensors: Industrial grade 10K IMC thermistors rated for 400°F with +/-1°F accuracy. When installed properly, they will not exceed ONE degree of additional error for cable distances up to 1000 ft. of 18 ga., 700 ft. of 20 ga. or 500 ft. of 22 ga. Two “BOLT-ON” sensors are included with each controller.
Temperature Difference Control - When the temperature difference between the sensor on the solar collector and the sensor in the storage tank exceeds the dialed temperature setting on “ON DIF”, the PUMP relay will actuate after a 30 second delay. The BLUE LED “RLY” indicator will also turn ON. When the storage tank temperature falls 2 degrees below the dialed setting on “ON DIF”, the PUMP relay and the BLUE LED indicator will turn off without delay. See “High Limit Control” below.
Pool High Limit Control - When the temperature in the POOL exceeds the dialed setting on “POOLHI LIM”, the PUMP relay will turn OFF without delay regardless of the temperature difference that exists between the POOL and the solar COLLECTOR. The BLUE LED indicator will turn OFF and the AMBER LED “ULT” indicator will turn ON. When the POOL temperature falls 1.5 degrees below the dialed setting on “POOL HI LIM”, the controller will resume normal operation. The PUMP relay will always have a 30 second delay before switching ON and the BLUE LED will always show its STATUS.
Power and Fault Indicators "LEDs" - The GREEN LED “PWR” indicator is ON when the microprocessor is POWERED and the SOLAR controller is operating. The RED LED “FLT” indicator will be FLASHING when there is a FAULT condition. Faults occur when either storage or collector sensor is OPEN or missing, or if any sensor has resistance OUT of RANGE, or when the pump RELAY SWITCH is NOT set to “AUT” (automatic) position. It is also possible that an internal circuit malfunction initiates the FAULT condition.
Low Temperature Shut-Down Override "LO" - This feature is available to prevent a “drain back” water system from operating at low outdoor temperatures. If this feature is enabled, normal operation will stop when the COLLECTOR temperature falls below 50 F. The PUMP relay will then be turned OFF. Normal control operation will not resume until the COLLECTOR temperature returns to 70 F or above. To enable this feature, a jumper must be placed onto the pins marked “LO” on the circuit board. Only 1 override can be enabled.
Freeze Protection Override "FZ" - This feature is available to prevent a “non-drain back” water system from freezing when the outdoor temperature drops too low. If this feature is enabled normal operation will stop when the COLLECTOR temperature falls below 40 F. The PUMP relay will then be turned ON until the COLLECTOR temperature
reaches 52 F. Normal control operation will resume above this temperature. To enable this feature, a jumper must be placed onto the pins marked “FZ” on the circuit board. Only 1 override can be enabled.
Data Port - This PORT transmits data ONLY, it is NOT bi-directional. The frequency at which the data transmissions occur is selected by the data refresh jumper labeled “2S 6M” on the circuit board (see drawing). Set jumper position to 2S for one complete line of “total system information” to be sent to the computer every 2 seconds, or set to 6M for 6 minutes. Complete instructions are supplied with accessories required to connect to a computer. DO NOT CONNECT THIS PORT DIRECTLY TO ANY ETHERNET DEVICE OR COMPUTER PORT!
Data Sheet and Installation Instructions
Product Manufacturer: IMC Instruments, Inc.
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Note: All product performance tests and claims are that of the manufacturer, not The Energy Supermarket.
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