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Safety Information

©2012 Viking Preferred Service

C

SAVE THESE INSTRUCTIONS

REVIEW ALL SERVICE INFORMATION IN THE APPROPRIATE SERVICE MANUAL AND 

TECHNICAL SHEETS BEFORE BEGINNING REPAIRS.

Pride and workmanship go into every product to provide our customers with quality appliances. It 

is possible, however, that during the lifetime of a product service maybe require. Products should 

be serviced only by a qualified authorized service technician who is familiar with the safety 

procedures required to perform the repair and is equipped with the proper tools, parts, testing 

instruments, and the appropriate service manual.

Safety Information

We have provided many important safety 

messages throughout this manual and on 

the product. Always read and obey all safety 

statements. To properly identify a safety 

statements look for the following safety alert 

symbol.

This symbol alerts personnel to hazards 

that can many different types of altering 

messages. All safety messages will be 

preceded by a safety alert symbol and the 

word “DANGER”, “WARNING” or “CAUTION”.

All safety messages will identify the hazard, 

tell you how to reduce the chance of injury, 

and inform you what can happen if the 

instructions are not followed.

Immediate hazards which WILL result in severe 

personal injury or death.

Hazards or unsafe practices which COULD 

result in severe personal injury or death.

Hazards or unsafe practices which COULD 

result in minor personal injury, product or 

property damage.

To avoid risk of serious injury or death, repairs 

should not be attempted by unauthorized 

personnel.

VIKING will not be responsible for any injury 

or property damage from improper service 

procedures. If performing service on your own 

product, you must assume responsibility for any 

personal injury or property damage which may 

result.

To locate an authorized service agent, call: 

Viking Customer Service

Phone No. 1-888-845-4641

Address your written correspondence to: 

Viking Preferred Service

1803 HWY 82 West

Greenwood, MS 38930

Summary of Contents for RDWHC3042

Page 1: ...1A April 2012 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...

Page 2: ...ON Low Speed 12 FAN OPERATION High Speed 13 FAN OPERATION High Speed Thermostat 14 FAN OPERATION High Temperature Thermostat 15 Wiring Diagrams 16 DWH30 36SS Diagram 16 DCH RDWHC 30SS 30 DCH RDWHC 36S...

Page 3: ...ts personnel to hazards that can many different types of altering messages All safety messages will be preceded by a safety alert symbol and the word DANGER WARNING or CAUTION All safety messages will...

Page 4: ...General Information 4 2012 Viking Preferred Service Performance Chart DWH30SS DWH36SS Performance Chart DCH RDWHC 30SS DCH RDWHC 36SS...

Page 5: ...both in a recirculation mode as well as exterior discharge mode FIG 1 and 2 below shows the underside of the 30 wall hood FIG 1 FIG 2 The unit comes with a two speed dual blower motor and a two level...

Page 6: ...ation Charcoal Filter Added The charcoal filter is held in place with four securing clips Included with charcoal filter as shown in FIG 5 above Remove filters to access the internal blower motors FIG...

Page 7: ...ns the length of the hood as shown in FIG 7 FIG 7 In FIG 8 the blower motor assembly has been rotated 180 for rear and top external discharge There are 2 5 16th nuts that secure the blower assembly to...

Page 8: ...in place FIG 10 FIG 9 FIG 10 shows the rear of the hood with the damper removed Notice the two squirrel wheels in place for rear discharge Junction box for incoming power supply is located in upper r...

Page 9: ...trim held in place with 2 Phillips head screws shown in FIG 14 and Fig 15 FIG 14 FIG 15 There are five Phillips head screws that hold the control panel in place One on each side one in the center and...

Page 10: ...onal WARNING Disassembly 10 2012 Viking Preferred Service Remove the light and switch compartment Remove screws securing the panel to the frame of the hood One in the center and one next to each canop...

Page 11: ...Low the current runs through the light switch through the diode which reduces the voltage to the lights The lights will operate in a low light condition When the lights are switched to position II Hig...

Page 12: ...the fans are switched to position I Low the current runs through the fan switch through the Common and Normally closed N C contact in the High speed thermostat From there the current is sent to both l...

Page 13: ...eferred Service 13 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 oper...

Page 14: ...temperature in the hood exceeds 160 Fahrenheit the Fan speed thermostat will switch to the Normally Open Contact and switch power from the low speed windings to the high speed windings When the tempe...

Page 15: ...erature 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 Therm...

Page 16: ...Wiring Diagrams 16 2012 Viking Preferred Service Wiring Diagram DWH30SS DWH36SS...

Page 17: ...re designed to operate as exterior discharge mode only FIG 1 below shows the underside of the 30 wall hood FIG 1 The unit comes with a variable speed blower motor and a variable level light selection...

Page 18: ...2012 Viking Preferred Service To access to the blower motor and internal switches remove the filters FIG 4 shows two trims that run the length of the hood both front and rear as well as the center sup...

Page 19: ...plug shown unplugged in FIG 7 in the component compartment of the hood If now power is coming out of the J Box a three wire grounded extension cord can be used to test the operation of the hood FIG 7...

Page 20: ...Service FIG 11 and FIG 12 show the left front screw location accessed through the light bulb openings This view is looking forward from inside the hood Suggest using a handheld mirror to locate screw...

Page 21: ...he mounting bracket The location is shown circled in FIG 14 FIG 14 FIG 15 FIG 15 shows the location of the High Temperature Thermostat If the hood cavity exceeds 160 Fahrenheit The thermostat will clo...

Page 22: ...between low high or any variation in between the intensity of the light output will vary The current runs through the light switch through the dimmer control then out to the cavity lights The diagram...

Page 23: ...Troubleshooting 2012 Viking Preferred Service 23 LIGHT OPERATION High With dimmer set to high the intensity of the lights will be at full output...

Page 24: ...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 mot...

Page 25: ...Troubleshooting 2012 Viking Preferred Service 25 MOTOR OPERATION High With motor controller is set to high the motor will run at full speed...

Page 26: ...red Service 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 d...

Page 27: ...Wiring Diagrams 2012 Viking Preferred Service 27 Wiring Diagram DCH RDWHC30SS DCH RDWHC36SS...

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