preparIng The unIT for sTarT up
www.DaikinApplied.com 93 IM 1125-7 • REBEL ROOFTOPS
Servicing Control Panel Components
DANGER
Hazardous voltage. May cause severe injury or
death.
Disconnect electric power before servicing equipment
Before Start-Up
1. Remove shipping bolts from compressor(s).
2. Verify that the unit is completely and properly installed
with ductwork connected.
3. Verify that all construction debris is removed, and that
the lters are clean.
4. Verify that all electrical work is complete and properly
terminated.
5. Verify that all electrical connections in the unit control
panel are tight, and that the proper voltage is connected.
6. Verify all nameplate electrical data is compatible with the
power supply.
7. Verify the phase voltage imbalance is no greater than
2%.
8. Verify that gas piping is complete and leak tight.
9. Verify that the shutoff cock is installed ahead of the
furnace, and that all air has been bled from the gas lines.
10. Verify installation of gas ue and outside air vents.
11. Manually rotate all fans and verify that they rotate freely.
12. Verify that the evaporator condensate drain is trapped
and that the drain pan is level.
13. If unit is curb mounted, verify that the curb is properly
ashed to prevent water leakage.
14. Review the equipment and service literature, the
sequences of operation, and the wiring diagrams to
become familiar with the functions and purposes of the
controls and devices.
15. Determine which optional controls are included with the
unit.
Power-Up
1. Close the unit disconnect switch.
2. Power should now be supplied to the control panel.
Phasing the Rebel Unit
The supply and return fans, inverter compressor, and
condenser fans are all inverter driven and are DC voltage
motors. Care has to be taken to ensure proper phasing.
1. With a phase rotation indicating tool ensure phase
rotation per the wiring diagrams on the inside door of the
control panel.
Fan Start-Up
1. Verify all duct isolation dampers are open.
2. Place the unit into the “Fan Only” mode through the
keypad.
3. The controller should enter the “Startup Initial” operating
state. If the fan does not run, check the manual motor
protectors or that the circuit breakers have not tripped.
4. Verify the rotation is correct.
To Next Page
Loading...
