American Dream Ultra Performance Geothermal Copper Series, Installation And Service Manual

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25 MAY 2009 Page 23 000744MAN-02
The following steps describe how to perform the startup procedure of the geothermal heat pump.
The Two-Stage R410a Air and Hydronic Startup Records located in this manual are used in conjunction with this startup procedure
to provide a detailed record of the installation. A completed copy should be left on site, a copy kept on file by the installer and a copy
should be sent to AMERICAN DREAM Geothermal.
Check the boxes or fill in the data as each step is completed. For data boxes, circle the appropriate units. Fill in the top section of all
three copies, or one copy if photocopies can be made after the startup has been completed.
PRE-START INSPECTION
Ductwork:
1. Verify that all ductwork has been completed and is firmly attached to the unit. Verify that any dampers or diverters are
properly set for operation of the heat pump.
2. Verify that all registers are open and clear of any objects that would restrict the airflow.
3. Verify that a new air filter is installed and the cover is secured.
4. Verify the condensate drain is connected, properly vented and free of debris.
5. If a plenum heater has been installed, verify that it is securely fastened to the ductwork.
Indoor Loop (Hydronic Loop):
1. Verify that all shutoff valves are fully open and there are no restrictions in the piping from the heat pump to the indoor loop,
and that full flow is available to the heat pump.
2. Verify that the entire system has been flooded and all the air has been purged as much as possible. Further purging may
be required after the system has been operating for a while.
3. Verify that the loop contains the proper mix of antifreeze (if used) for the intended application. Record the type of antifreeze
and the mixture value on the startup sheet, circle % Vol. or % Weight.
4. Record the static loop pressure on the startup sheet.
Line Sets (Inside structure):
1. Verify that all line sets are connected to the proper ports on the heat pump.
2. Verify that the line sets are completely insulated and securely fastened in place.
Domestic Hot Water (if equipped):
1. Verify that all shutoff valves are fully open and there are no restrictions in the piping from the heat pump to the domestic
hot water tank.
2. Verify that the entire system has been flooded and all the air has been purged as much as possible. Further purging may
be required after the system has been operating for a while.
3. Verify that the brown wire with the insulated terminal is disconnected in the electrical box. Refer to the schematic diagram
for more information.
Electrical:
1. Ensure the power to the unit is off. Ensure the power to the plenum heater is off if equipped.
2.
Verify all high voltage connections. Ensure that there are no stray wire strands, all connections are tight and the ground
wire is connected tightly to the ground connector for the heat pump and plenum heater.
3. Record the fuse / circuit breaker size and wire gauge for the heat pump. Record the fuse / circuit breaker size, wire gauge
and size of the plenum heater if installed.
4. Verify that the control connections to the thermostat and plenum heater (if installed) are properly connected and all control
signals are off, so that the unit will not start up when the power is turned on.
5. Ensure all access panels except the lower one that provides access to the electrical box are in place.
Unit Charge:
1. Ensure the unit has been vacuumed and has refrigerant in it. If the unit is not fully charged, the remainder can be added
during the start up procedure. Record the current amount of refrigerant in the system.
Startup Procedure