|
SPECIFICATIONS*
|
| Input Power |
2Watts @ 120 vac |
| Output Relay: |
NO Contact; 20A,
or 1 HP @ 120 VAC,
with 30 sec ON delay
NC contacts; 10A or 1/3 HP |
| Differential: |
8/4 to 24/4 °F |
| High Limit: |
110 to 200 °F |
| Accuracy: |
+/- 1 °F |
| Environmental: |
-10 to 120 °F
0 to 95% RH |
| Temperature Sensors: |
10K @ 25C/77 °F |
| Dimensions: |
5”W x 6 ”H x 2.5”deep |
TEMPERATURE DIFFERENCE CONTROL
When the temperature difference between the sensor in the solar
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 immediately.
LOW TEMPERATURE SHUT DOWN
This feature is available to prevent the system from operating at
low outdoor temperatures. If this feature is enabled normal operation will stop when the COLLECTOR temperature
falls below 50 degrees F. The
PUMP relay will then be turned off. Normal control operation will not resume until
the COLLECTOR temperature returns to 70 degrees or above. To enable this feature, a jumper must be placed onto the jumper pins marked "LO" on the circuit board.
Only ONE of these two override features can be enabled.
FREEZE PROTECTION OVERRIDE
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 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.
HIGH LIMIT CONTROL
If the temperature in the storage tank exceeds the HI-LIMIT temperature dialed in the
controller, the pump will be turned OFF immediately 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 below the setting in the HI-LIMIT in the controller then control action
will return back to its normal control operation. The pump relay will always have a 30 second delay to the ON
position and the blue LED will always show its STATUS condition.
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”.
See more technical information and installation instructions about this differential temperature control in the Product Documentation section above! |
