Viking DCH3042 Service Manual
Chimney / wall ventilation hoods
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Also See for DCH3042:
- Service manual (22 pages) ,
- Brochure & specs (44 pages) ,
- Brochure (20 pages)
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Service
Manual
This manual is to be used by qualified appliance technicians only. Viking
does not assume any responsibility for property damage or personal
injury for improper service procedures done by an unqualified person.
Chimney / Wall
Ventilation
Hoods
Preferred Service
This Base Manual covers general and
specific information including, but not
limited to the following models:
DCH3042
DCH3642
DWH3006
DWH3606
RDWHC3042
RDWHC3644
®
Models
SMV-0001A
April 2012
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Table of Contents
Troubleshooting
Related Manuals for Viking DCH3042
Summary of Contents for Viking DCH3042
- Page 1 Service ® Preferred Service Manual This manual is to be used by qualified appliance technicians only. Viking does not assume any responsibility for property damage or personal injury for improper service procedures done by an unqualified person. Chimney / Wall...
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Page 2: Table Of Contents
LIGHT OPERATION (Low) ........22 LIGHT OPERATION (High) ........23 MOTOR OPERATION (Low) ........24 MOTOR OPERATION (High) ......... 25 FAN OPERATION (High Temperature Thermostat) 26 Wiring Diagrams ............27 DCH/RDWHC 30/36SS Wiring Diagram ....27 ©2012 Viking Preferred Service... -
Page 3: Safety Information
All safety messages will be preceded by a safety alert symbol and the CAUTION word “DANGER”, “WARNING” or “CAUTION”. VIKING will not be responsible for any injury or property damage from improper service DANGER procedures. If performing service on your own... -
Page 4: General Information
General Information Performance Chart – DWH30SS – DWH36SS Performance Chart – DCH/ RDWHC 30SS – DCH/ RDWHC 36SS ©2012 Viking Preferred Service... -
Page 5: Dwh30 (30") - Dwh36 (36") Designer Wall Hoods
The unit comes with a two-speed dual blower motor and a two level light selection, both controlled by two center mounted rocker sw itches. Each switch has a center OFF position. FIG 3 shows a close-up of the switches. FIG. 3 ©2012 Viking Preferred Service... -
Page 6: Filters
Cloc kwise rotation (Below right) and the other in a counter-clockwise rotation (Below left). Each motor is connected separately to the control housing by the use of a 4-wire Molex disconnect plug (Inset). FIG. 6 Recirculation installation shown ©2012 Viking Preferred Service... -
Page 7: Ait Flow
There are (2) 5/16th nuts that secure the blower assembly to the hood housing. The insets below show each side where the nut is located (circled in red). The right one is just above the main power connection FIG. 8 ©2012 Viking Preferred Service... -
Page 8: Airflow Routing
(FIG 12) in the component compartment of the hood. If the lights and fan are not working, unplug the internal power plug and check for 120 volts at the female connection shown in Fig 13. FIG. 11 FIG. 12 Fixed three prong connection FIG. 13 ©2012 Viking Preferred Service... -
Page 9: Disassembly
FIG. 16 With the screws removed, remove the power and motor connection mounting plate from the hood. Internal wiring of the power connections is now accessible as shown in FIG 17. FIG. 17 ©2012 Viking Preferred Service... - Page 10 (Removed in photo). FIG. 18 Lift the control panel from the frame to expose the internal operational components. FIG 19 shows the Fan Switch, Light Switch, Hi-Temp Thermostat, High Speed Thermostat and halogen light socket. FIG. 19 ©2012 Viking Preferred Service...
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Page 11: Light Operation
The lights will operate in a low-light condition. When the lights are switched to position II (High), the current runs through the light switch and directly to the lights. The lights will operate at full power. ©2012 Viking Preferred Service... -
Page 12: Fan Operation (Low Speed)
Common and Normally closed (N.C.) contact in the High speed thermostat. From there the current is sent to both low speed windings in the motors. The fans will operate in a low speed condition. ©2012 Viking Preferred Service... -
Page 13: Fan Operation (High Speed)
FAN OPERATION (High Speed) When the fans are switched to position II (High), the current runs through the fan switch directly to both high speed windings in the motors. The fans will operate in a high speed condition. ©2012 Viking Preferred Service... -
Page 14: Fan Operation (High Speed Thermostat)
When the temperature drops below 160°, the thermostat will switch back to the Normally Closed contact and the fan speed will revert to low operation. ©2012 Viking Preferred Service... -
Page 15: Fan Operation (High Temperature Thermostat)
If at any time the interior of the hood exceeds 160° F, the High Temp thermostat will close and operate the fans at HIGH speed. When the temperature drops below 145°, the High Temp Thermostat will open fans will shut off or revert back to previous condition. ©2012 Viking Preferred Service... -
Page 16: Wiring Diagrams
Wiring Diagrams Wiring Diagram DWH30SS DWH36SS ©2012 Viking Preferred Service... -
Page 17: Dch/Rdwhc 30Ss (30") - Dch/Rdwhc 36Ss (36") Professional Wall Hood
The unit comes with a variable speed blower motor and a variable level light selection, both controlled by two center mounted On-Off push button switches. FIG 2 shows a close-up of the light controls and FIG 3 shows the fan controls. FIG. 2 FIG. 3 ©2012 Viking Preferred Service... -
Page 18: Disassembly
The blower assembly consists of the motor and two squirrel cage blower wheels, one at each end of the motor. The left side wheel is shown in FIG 5. FIG 6 shows the right side blower wheel, along with the internal power and motor connections. FIG. 5 FIG. 6 ©2012 Viking Preferred Service... -
Page 19: Electrical Connections, Input
Phillips head screwdriver (7-10" long) will be required to reach the screws. Two screws (one on each side come forward into the front frame). FIG. 9 FIG. 10 FIG 10 shows the side screws location accessed through the rear slotted opening in the panel. ©2012 Viking Preferred Service... -
Page 20: Thermostat And Switch Access
Lift the control panel compartment from inside the hood to access the Light sockets, control switches, High Temp Thermostat, Speed Control and light dimmer. FIG 13 shows the internal compartment, which houses the incoming power, Dimmer control, Speed Control, On / Off switches and High Temperature thermostat. FIG. 13 ©2012 Viking Preferred Service... -
Page 21: Dimmer And Motor Speed Controls
Reinstall in reverse order and secure locking nuts. CAUTION! Make sure motor is held in place while removing so it does not drop on the cooking surface below. FIG. 16 ©2012 Viking Preferred Service... -
Page 22: Troubleshooting
The current runs through the light switch, through the dimmer control, then out to the cavity lights. The diagram below shows the lights at a LOW dimmer setting. The cavity lights are very low in intensity. ©2012 Viking Preferred Service... -
Page 23: Light Operation (High)
Troubleshooting LIGHT OPERATION (High) With dimmer set to high, the intensity of the lights will be at full output. ©2012 Viking Preferred Service... -
Page 24: Motor Operation (Low)
When the Motor Controller is set between low, high or any variation in between, the speed of the motor will vary. The current runs through the Fan switch, through the Motor Controller, then out to the motor assembly. The diagram below shows the motor at a LOW speed setting. ©2012 Viking Preferred Service... -
Page 25: Motor Operation (High)
Troubleshooting MOTOR OPERATION (High) With motor controller is set to high, the motor will run at full speed. ©2012 Viking Preferred Service... -
Page 26: Fan Operation (High Temperature Thermostat)
If at any time the interior of the hood exceeds 160° F, the High Temp thermostat will close and operate. The fan at HIGH speed. When the temperature drops below 145°, the fans will shut off. ©2012 Viking Preferred Service... -
Page 27: Wiring Diagrams
Wiring Diagrams Wiring Diagram DCH/RDWHC30SS DCH/RDWHC36SS ©2012 Viking Preferred Service...