SiUS181631EA Test Operation
Test Operation and Field Settings 115
1. Test Operation
1.1 Procedure and Outline
Follow the following procedure to conduct the initial test operation after installation.
1.1.1 Check Work Prior to Turn Power Supply On
1.1.2 Turn Power On
Check on refrigerant piping.
Check on amount of refrigerant
charge.
(R12942)
{
Is the power supply single-phase 208 ~ 230 V, 60 Hz?
{ Have you finished a duct work to drain?
{ Have you detach transport fitting?
{ Is the wiring performed as specified?
{ Are the designated wires used?
{ Is the grounding work completed?
Use a 500 V Megger tester to measure the insulation.
Do not use a Megger tester for other than
208 - 230
V circuit.
{ Are the screws of wiring not loose?
{ Is the electrical component box covered with an insulation cover
completely?
{ Is pipe size proper? (The design pressure of this product is 4.0 MPa
(1338 ftAq).)
{ Are pipe insulation materials installed securely?
Liquid and gas pipes need to be insulated. (Otherwise causes water
leak.)
{ Are respective stop valves on liquid and gas line securely open?
{ Is refrigerant charged up to the specified amount?
If insufficient, charge the refrigerant from the service port of stop valve
on the liquid side with outdoor unit in stop mode after turning power
on.
Check the below items.
• Power wiring
• Control transmission wiring
between units
• Ground wire
Turn outdoor unit power on.
Turn indoor unit power on.
{ Be sure to turn the power on 6 hours before starting operation to
protect compressors.
{ Close outside panels of the outdoor unit.
(R12995)
Carry out field setting on
outdoor PCB.
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