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Summary of Contents for FSI F-DI1.25VHP ECU
- Page 1 FSI® 1.25 Ton AC/Heat Pump Unit Operational Guide for F‐DI1.25VHP ...
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Page 2: Basic Setup
Operation guide for the F-DI1.25VHP ECU / heat pump There are no user serviceable parts within the ECU and the user should not attempt to service the ECU in anyway. • Failure to use a grounded electrical outlet could result in an electrocution injury. - Page 3 Install the ducting to and from the shelter and fasten with the integrated clamps. Slide the ducting over the rings and pull the loose end of the cinch strap to tighten it on the rings. The left upper duct is the outlet air from the ECU, supply air to the shelter, and the right lower duct is the return air from the shelter.
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Page 4: Controller Setting
circuit breaker for starting the compressor is required. The ECU will draw less current when it is operating. For cold weather operation, the ECU has two resistance heaters installed. You will need to provide enough power to operate the heaters in cold weather. -
Page 5: Setting Fan Speed
The second line of the display is the set point. The set point is the temperature that you are attempting to achieve inside your shelter. Press the Higher or Lower arrows once and the display will show set point and the temperature that is currently set. To change the temperature press once for each degree change or hold the up or down arrow to scroll and set your new temperature. - Page 6 buttons. Press and hold the DOWN arrow button then press the UP arrow button. The display will switch to FAN SPD and display HIGH. As soon as the display reverts to normal operation the fan speed will change to HIGH. To switch back to LOW fan speed press and hold the UP button and then press the DOWN arrow the display will switch to FAN SPD LOW and as soon as the display reverts to normal operation the fan will switch back to the LOW speed.
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Page 7: Emergency Operation Mode
Generally the outside temperatures would be below 15 degree F or –9 C This will operate both resistance heaters instead of the heatpump and will be more effective at supplying heat for the shelter. The supply fan is constantly ON to allow a better air mix of heating and cooling to help avoid uneven cooling or heating of the shelter when the compressor unit cycles off. -
Page 8: Shutdown Procedure
Shut down procedure Turn the controller to the off position. Press and hold the ON/OFF button unit the asterisk disappears, or simply unplug it from the control cable. If the ECU compressor was running it will stop. The ECU fan will continue to circulate air until it is turned of at the power supply breaker. - Page 9 1.25VHP NOTES: Wiring Rev 1A Identified Terminal Date 04-06-11 Emergency cool switch UP Center position OFF Emergency Heat switch Down Fan speed Controller no jumper Relay 24 volt Compressor and Reversing Fan indoor Fan Capacitor valve energized for heat supply 115 volt High 30 A...
- Page 10 Controller cable receptacle and controller interface connector Wiring details viewed from the rear of the receptacle G Temp Ther G 24v R A 24v S Not used Black W Temp THer B rev valve B NU F Therm Green O cool H Therm White Y Fan...
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Page 11: Troubleshooting
Trouble shooting ECU not operational Check power supply Check power cord Check receptacle for damage Inside blower operates but ECU will Verify that the controller is plugged in and not start to cool or heat operational. Check that the Asterisk is showing on the display if not press and hold the on key for 2 seconds if that fails to work contact your service personal.
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