Startup Procedure; Pre-Start Inspection - Boreal W-Series Installation And Service Manual

Hydronic geothermal heat pumps two-stage r410a

Table of Contents

The following steps describe how to perform the startup procedure of the geothermal heat pump.

The W-Series Two-Stage R410a Startup Record located in this manual is used in conjunction with this startup procedure to pro-

vide 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 Boreal Geothermal Inc.

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.

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. If applicable, 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.

Outdoor Loop (Ground Loop):

1. Verify that all shutoff valves are fully open and there are no restrictions in the piping from the heat pump to the ground 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 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.

Outdoor Loop (Ground Water):

1. Verify there are no leaks in the connections to the unit. Verify the water valve is installed and properly oriented in the

return line.

2. Verify that there is flow control in the return line.

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.

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.

3. Record the fuse / circuit breaker size and wire gauge for the heat pump.

4. Verify that the control connections to the unit are properly connected and all control signals are off, so that the unit will not start

up when the power is turned on.

5. Verify that the circulator pumps are connected to the proper voltage terminals in the heat pump. Record the voltages of the

circulator pumps.

6. Ensure all access panels except the one that provides access to the electrical box are in place.

02 JULY 2009