Toshiba ESTIA HWS-1501CSHM3-E, Service Manual

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170
6 Compressor
Compressor lead 3. Vacuuming
1) Connect the vacuum pump to the charge port of
the gas piping valve to operate the vacuum pump.
2) Perform vacuuming until the vacuum low pressure
gauge shows 1(mmHg).
NOTE
Open fully the pulse motor valve before vacuuming.
With the valve closed, vacuuming between the outdoor
unit liquid valve and the pulse motor valve may fail.
How to make pulse motor valve forcible full open
• Turn on the electric leakage breaker.
• Set the SW804 dip switch 1 and 3 on the outdoor
unit control board to ON.
• Press SW801 on the outdoor unit control board
for 1 second or longer.
• After pressing SW801 for 1 second or longer,
turn off the electric leakage beaker within 2
minutes.
4. Charge refrigerant
1) Add refrigerant whose amount is defined
according to the piping length from the valve
charge port. (HWS-802H : 1.8kg)
7 Pulse motor valve coil 1. How to remove
1) Perform the step 1-1 and step 3.
2) Remove the coil from the pulse motor valve body
while pulling the coil upward to release the spring
holding the copper pipe.
2. How to attach
1) Fix the spring to the copper pipe.
No.
Exchange parts
name
Work procedure Remarks
SW801 SW804
Pulse motor
valve body
Pulse motor valve coil
Spring