Operation-Controller - IMC Eagle 2 SUN CONTROL Service And Installation Instructions

Differential temperature controller

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INSTRUMENTS, INC.

OPERATION-CONTROLLER

TEMPERATURE DIFFERENCE CONTROL-

collector and the sensor in the storage tank exceeds the "temperature difference" dialed in the controller, the PUMP

relay will actuate after a 30 second delay. The BLUE LED indicator will also turn on. If the temperature difference

decreases and falls below 4 F (2.2 C), the PUMP relay and the BLUE LED indicator will turn off with out delay.

HIGH LIMIT CONTROL

- If the temperature in the storage tank exceeds the HI-LIMIT dialed setting, the PUMP

relay will be turned OFF without delay regardless of the status of the "temperature difference" that exists between

the STORAGE tank and the solar COLLECTOR. The BLUE LED indicator will also turn be turned OFF. Should the

storage tank temperature fall 4 degrees below the setting in the HI-LIMT, the controller will then resume normal

operation. The PUMP relay will always have a 30 second delay before actuation into the ON position and the BLUE

LED will always show its STATUS condition.

LOW TEMPERATURE SHUT DOWN OVERRIDE-

low outdoor temperatures. If this feature is enabled normal operation will stop when the COLLECTOR temperature

falls below 50 degrees F. The

the COLLECTOR temperature returns to 70 degrees or above. To enable this feature,

onto the jumper pins marked "LO' on the circuit board.

FREEZE PROTECTION OVERRIDE-

freezing when the outdoor temperature drops too low.

COLLECTOR temperature falls below 37 degrees F. The PUMP relay will then be turned on until the COLLECTOR

temperature reaches 52 degrees. Normal control operation will resume above this temperature. To enable this

feature, a jumper must be placed onto the jumper pins marked "FZ' on the circuit board. Only ONE of these two

override features can be enabled.

DATA PORT-

Requires an IMC-Data port/RS232 ADAPTER. This will allow interface to a standard PC serial port.

The ADAPTER can further accept a serial/USB converter to connect directly to PC or Laptops that only have USB

ports. If wireless operation is desired for short distances, BLUE TOOTH transceiver can also be connected. The

rate at which the data is sent from the EAGLE solar controller is determined by a jumper in the controller as show in

the CONTROLLER diagram. If the jumper is placed in position labeled "2S", one complete line of "Total system

information" to the PC every 2 seconds which is necessary when performing diagnostics or a system startup. If the

same jumper is placed in position labeled "6M', then DATA will be sent every 6 minutes. This will allow a more

suitable data-send rate for long term DATA LOGGING, specially when storing the data in a "CAPTURE" file set up in

the PC "Terminal" communications program such as "Hyper Terminal" or "Terminal".

SAMPLE DATA PORT PRINT

RUNTIME COLL-T

STOR-T

DIFF-T