Maritime Geothermal EMWT-65-HACW-P-1T, Инструкция по установке и обслуживанию

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Page 20 000662MAN-03 01 MAR 2012
The following steps describe how to perform the startup procedure of the geothermal heat pump.
The EMWT-HACW Series Two-Stage R410a Startup Record located in this manual is used in conjunction with this startup proce-
dure 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 Maritime Geothermal Ltd.
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
Heating and Cooling Zone Loops:
1. Verify that all shutoff valves inside the unit are fully open.
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. The value must be above 12PSIG . The electric heat will not function
if the pressure is below this value.
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 are properly connected and all control signals are off.
5. Turn both breakers off in the unit electrical box , so that the unit will not start when the power is turned on.
6. Verify that the circulator pumps are connected to the proper voltage terminals in the heat pump. Record the voltages of the
circulator pumps.
7. Ensure all access panels except the one that provides access to the electrical box are in place.
Startup Procedure