Panasonic NC-DG3000WTS Simplified Service Manual ▷ View online
25
6.22. Valve A, Seal ring and Spring B assembly
1. Assemble seal ring on valve A, then assemble spring B.
2. Set 4 legs of valve A of pump comp., as picture below.
2. Set 4 legs of valve A of pump comp., as picture below.
Operating point
• Flat side of sealing should reach to base of valve A.
6.23. How to check Pump comp.
1. Use finger to Block A position, and push tightly to prevent air leak from Lid. (If there is some rebound on Pump Comp., it
means OK.)
Operating point
• If do not set packing lid well, it may not withstand pushing reaction. (Packing lid should not be open)
• Assemble pump comp., to lid after check air leak.
• Assemble pump comp., to lid after check air leak.
6.24. Check after assembly
• After assembly, check for any water leaks, insulation resistance, dielectric strength and performance with power applied.
The insulation resistance :
• Shall be 2MΩ or more when measured with a DC500VC megger. (Measuring point : Between the 2 peg frame pins and the bot-
tom plate)
Dielectric strength :
• Shall withstand AC1000V for 1 minute. (Measuring point : Same as for the insulation resistance test)
Check normal operation :
• Conduct the pot performance test (5.1.Thermo pot performance test mode ,5.2.Check for thermo pot performance )normal.
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6.25. Position of production date stamping
• Production date is stamped on the bottom plate.
6.26. Performance test
6.26.1.
Keep warm temperature check.
1. Fill the container with the rated amount of water and
maintain temperature.
2. Measure the temperature 1 hour after keep warm lamp
illuminates.
Normal warming temperature range :
• 90deg - 100deg (without continuous boiling) LED indication :
98
6.26.2.
Discharge amount check (at 98 set-
ting)
ting)
6.26.2.1. With motorized discharge.
1. Fill the container with the rated amount of water.
2. Measure the water amount about 1 hour after the start of
2. Measure the water amount about 1 hour after the start of
keep warm operation.
3. Press the pour out pad and let the hot water pour out for 5
seconds. Measure the amount of discharged hot water.
Normal water discharge amount :
• 250ml or more.
6.26.3.
Boiling time (Steam emitting time)
check.
check.
1. Pour the rated amount of water into the container and boil
the water.
2. Measure the exact time from when steam starts to be pro-
duced to when the vacuum keep warm lamp illuminates.
Normal boiling time :
• 80 seconds or less.
6.26.4.
Dechlorination boiling check. (at 98
setting)
setting)
1. Fill the container with the rated amount of water and
switch to dechlorination mode by pressing the reboil pad.
(Reboil lamp illuminates for flushing).
(Reboil lamp illuminates for flushing).
2. Check that dechlorination boiling mode starts.
6.26.5.
Citric acid cleaning time check.
1. Fill the container with the rated amount of water and
switch to citric acid cleaning mode by pressing the select
pad for more than 3 seconds.
pad for more than 3 seconds.
2. Check citric acid cleaning mode starts. (Reboil lamp illu-
minates and the liquid crystal indication rotates).
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7 Wiring Connection Diagram
7.1.
Circuit diagram
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8 Schematic Diagram
8.1.
Actual wiring diagram
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