3.2 Servicing
Always disconnect power to any Viking product before attempting to service.
1)
CAUTION of electrical shock.
2)
Never attempt any electrical repairs in damp or wet areas when
power is connected to the unit.
If the unit has been running, use CAUTION around the compressor, condenser, and connecting
3)
high side tubing. These areas may be hot and capable of burning flesh.
Use CAUTION around the condenser fins and evaporator fins, also edges around the back panel,
4)
rear cabinet edges, and the mechanical base plate. These areas are sharp and could result in minor
to severe cuts.
Refrigerant is under pressure. Never attempt to open a refrigeration system without properly
5)
evacuating it.
Any refrigerant, R-12 (CFC), R-22 (HCFC), or R-134a (HFC), must be recovered. Federal
6)
regulations prohibit the intentional venting or release of refrigerants during the repair or disposal
of an appliance.
Whenever possible it is best to perform all system repairs at the service center rather then the
7)
customer’s home.
Always have proper ventilation using a torch when disconnecting soldered joints. It is not un-
8)
common to have some oil flash when the copper tubes are heated and separated.
Always wear protective safety glasses and gloves when working on any Viking product.
9)
3.3 Basic Tools Needed for R-134a Service & Repair
Manifold gage
1)
Hoses with couplers
2)
Certified refrigerant recovery system
3)
Charging cylinder or dial-a-charge
4)
Weight scale
5)
Access taps
6)
Brazing torch
7)
Vacuum pump
8)
Leak detector
9)
Small & large tubing cutters
10)
Swaging tools
11)
Multi-meter
12)
Standard hand tools (¼” nut-driver, 5/16” nut-driver, 3/8” nut-driver, slotted and Phillips
13)
screwdriver, allen wrenches, combination and adjustable wrenches, 3/8” drive socket set).
Rivet gun with assorted rivets
14)
Drill motor and assorted metal drill bits
15)
Solder and flux.
16)
14
2010 - Viking Preferred Service
SMR-0005
Summary of Contents for DFUW244CL
Page 6: ...Section 1 Introduction to Dual Zone 2010 Viking Preferred Service SMR 0005 ...
Page 10: ...Section 2 Dual Zone Characteristics 2010 Viking Preferred Service SMR 0005 ...
Page 16: ...Section 3 Refrigeration Systems 2010 Viking Preferred Service SMR 0005 ...
Page 27: ...Section 4 TruProtect Control Diagnostics 2010 Viking Preferred Service SMR 0005 ...
Page 30: ...Section 5 Mechanical System Components 2010 Viking Preferred Service SMR 0005 ...
Page 38: ...Section 6 Structural Components 2010 Viking Preferred Service SMR 0005 ...
Page 42: ...Section 7 Electrical Components 2010 Viking Preferred Service SMR 0005 ...
Page 50: ...Section 8 Control Components 2010 Viking Preferred Service SMR 0005 ...
Page 54: ...Section 9 Wiring 2010 Viking Preferred Service SMR 0005 ...
Page 57: ...52 J110 J111 J112 J2 J1 J4 J7 J3 9 3 Main Power Board 2010 Viking Preferred Service SMR 0005 ...
Page 58: ...9 4 User Interface 53 2010 Viking Preferred Service SMR 0005 ...
Page 59: ...Section 10 Reference Charts 2010 Viking Preferred Service SMR 0005 ...
Page 64: ...Section 11 Trouble Shooting Guide 2010 Viking Preferred Service SMR 0005 ...
Page 68: ...Section 12 Reference Photos 2010 Viking Preferred Service SMR 0005 ...
Page 71: ...2010 Viking Preferred Service SMR 0005 ...
Page 72: ...2010 Viking Preferred Service SMR 0005 ...
Page 74: ...2010 Viking Preferred Service SMR 0005 ...
Page 75: ...2010 Viking Preferred Service SMR 0005 ...
Page 76: ...2010 Viking Preferred Service SMR 0005 ...
Page 77: ...2010 Viking Preferred Service SMR 0005 ...
Page 78: ...2010 Viking Preferred Service SMR 0005 ...
Page 79: ...2010 Viking Preferred Service SMR 0005 ...
Page 80: ...2010 Viking Preferred Service SMR 0005 ...
Page 81: ...2010 Viking Preferred Service SMR 0005 ...
Page 84: ...2010 Viking Preferred Service SMR 0005 ...