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PUMP DOWN PROCEDURE
OBJECTIVE OF PUMPING DOWN
For product repairs and indoor unit relocation, the pump-down operation must be done to recover the refrigerant into the
outdoor unit.
CAUTIONS WHEN PERFORMING PUMP DOWN
The product limits the amount of refrigerant in the outdoor unit due to its slim design.
Collect much of the refrigerant in the system in an empty refrigerant vessel and perform a pump-down operation.
with the remaining refrigerant. The maximum amount of refrigerant is 5 kg.
If the amount of refrigerant exceeds the maximum allowable limit, increased pressure may cause a compressor trip
or burnout.
1. Close the manifold gauge.
2. Close the liquid side service valve.
3. Set the unit to the Cooling Test mode by pushing the K2 button 1 time.
4. Observe the low-pressure side using a manifold gauge when the compressor is operating.
5. When the pressure gauge indicates "0" turn the low-pressure side valve counterclockwise to close.
6. Stop the operation of the unit by pushing the K3 button.
7. Close each cap of the valve.
Use a transfer cylinder when recovering refrigerant to be reused. Using a modified refrigerant vessel may cause
explosion and cause damage or personal injury.
Relocation of the Air to the water heat pump
• Refer to this procedure when the unit is relocated.
• Carry out the pump-down procedure. (Refer to the details of ‘pump down’.)
• Collecting refrigerant may be hard since multi-type products exceed the allowable charging amount of refrigerant
in the outdoor unit to support long piping.
• Remove the power cord.
• Disconnect the assembly cable from the indoor and outdoor units.
• Remove the flare nut connecting the indoor unit and the pipe.
• Currently, cover the pipe of the indoor unit and the other pipe using a cap or vinyl plug to avoid foreign
material entering.
• Disconnect the pipe connected to the outdoor unit. Currently, cover the valve of the outdoor unit and the
other pipe using a cap or vinyl plug to avoid foreign material entering.
• Make sure you do not bend the connection pipes in the middle and store them together with the cables.
• Move the indoor and outdoor units to a new location.
• Remove the mounting plate for the indoor unit and move it to a new location.
Summary of Contents for Inuit 6I
Page 1: ...5 INSTALLATION MANUAL AIR TO WATER HEAT PUMP IGLU INUIT...
Page 16: ...16 IGLU Inuit 6WTI indoor unit...
Page 17: ...17 IGLU Inuit 9I outdoor unit IGLU Inuit 9I indoor unit...
Page 18: ...18 IGLU Inuit 9WTI outdoor unit IGLU Inuit 9WTI indoor unit...
Page 19: ...19 IGLU Inuit 12I IGLU Inuit 16I outdoor unit IGLU Inuit 12I IGLU Inuit indoor unit...
Page 27: ...27 SPACE REQUIREMENTS FOR OUTDOOR UNIT WHEN INSTALLING ONE OUTDOOR UNIT...
Page 43: ...43...