Daikin EWAQ016BAW, Service Manual

Page: 220 / 228

ESIE11-05 Test Run
Commissioning and Test Run 209
1.2 Procedure and Outline
Follow the following procedure to conduct the initial test operation after installation.
1.2.1 Check Work Prior to Turn Power Supply On
Check the stop valves for
conditions.
Terminal
Dryer
(1000W)
Check on piping / insulation
materials
Check the below items.
• Power wiring
• Control transmission wiring
between units
• Earth wire
Is the wiring performed as specified?
Is the designated wire used?
Is the wiring screw of wiring not loose?
Is the grounding work completed?
Is the insulation of the main power supply circuit deteriorated?
Use a 500V megger tester to measure the insulation. (*1)
• Do not use a megger tester for other circuits than 200V (or
240V) circuit.
*1:Measure to be taken against decreased insulation resistance in
the compressor.
If the compressor is left to stand for
an extended period of time after the
refrigerant charge with the stop valve
open and the power supply OFF, the
refrigerant may be mixed in the
compressor, thus decreasing the
insulation resistance.
Heat the compressor as shown on
the right and then recheck the
insulation.
Is the pipe size proper?
Is the pipe insulation material installed securely?
Check to be sure the stop valves are under the following
conditions.
Liquid-side stop valve
Open
Gas-side stop valve
Open