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Viking VUIM150, Сервисный журнал

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Viking VUIM150 Скачать руководство пользователя страница 24

3.  Check the flow rate of the reservoir water line.  Using a stopwatch or a watch with a 

second hand, see what amount of time it takes to fill up a one quart container. The  
time should be 60 seconds to get the .25 gpm specifications of the valve.  

• 

If it takes substantially less than 60 seconds, check the water supply pressure 
to make certain it is not above 120 psi static pressure.  If it is not, the 
metering orifice of the valve has been changed and the valve will need to be 
replaced. 

• 

If it takes substantially more than 60 seconds, check the water supply 
pressure to make certain it is not below 20  psi static pressure.  If it is not, 
make certain the valve screen filter is clean.  If the filter is clean, replace the 
valve 

 
Removal: 
 

1.  Disconnect power, water line, and drain line. 
2.  Remove the access panel and rear panel (see figure 3.3) 
3.  Remove the blue and white wire terminals at the water valve. 
4.  Loosen the reservoir water supply line compression nut from the bottom of the water 

valve. 

5.  Remove the two screws securing the water valve to the unit’s support pan. 
6.  Remove the water valve. 

 
Installation: 
 
Reverse the removal procedure for installation.  Make certain that the reservoir waterline 
is in the reservoir inside the unit and there are no water leaks anywhere after installation. 
 

5.1 Condenser Fan 
 

The condenser fan is used to force air over the condenser coil.  The fan will run only 
during ice production cycle and turn off in ice harvest cycle. 
 
To check the condenser fan: 
 

• 

Make sure motor shaft turns freely.  This can be done by rotating the fan blade by 

hand and observing any excessive resistance. 

 

• 

Check for resistance between terminals.  If no resistance is found, replace the 

condenser fan. 

 

• 

Check for continuity between terminals and fan casing.  If continuity is found, 

replace the condenser fan. 

 

• 

Check current draw, typical current draw will be .15 amp without fan resistance.  If 

current draw is .19 amp or more, check for resistance in air movement or objects 
touching the fan blade.  If this is not found, then replace the condenser fan. 

 

25

Содержание VUIM150

Страница 1: ...VIKING RANGE CORPORATION P O DRAWER 956 GREENWOOD MS 38930 USA...

Страница 2: ...11 2 SEALED SYSTEM Introduction 11 Low Side Leaks 12 High Side Leaks 12 Restricted Capillary Tube 12 Access Valve 12 Pressure and Temperatures 13 Recharging 14 3 SEALED SYSTEM COMPONENTS Hot Gas Valve...

Страница 3: ...y 80 F ambient 30 lbs day 90 F ambient 23 lbs day At 70 F water temperature 70 F ambient 32 lbs day 80 F ambient 27 lbs day 90 F ambient 20 lbs day Electrical Requirements 120VAC 60Hz Power Cord Lengt...

Страница 4: ...nd condenser fins and base plate edges These areas can be sharp Refrigerant is under high pressure Evacuate system before attempting to open refrigerant system Reasonable care and safe work methods sh...

Страница 5: ...ded 1 Hoses with R 134A couplers Must meet standards for handling R 134A refrigerant 2 Approved and certified recovery system for R 134A 3 Manifold gage set for R 134A 4 Charging cylinder with R 134A...

Страница 6: ...used but may leak with age Use inch saddle shut off valve Check to make sure valve complies with local codes Do not use self piercing saddle valve or less than inch saddle valve as water flow will be...

Страница 7: ...cessary for horizontal runs over 4 feet Proper routing sloping and size of drain is important especially if using flexible tubing or poor ice production will result If installing a standoff gravity dr...

Страница 8: ...n tubing and cause water damage 1 11 OPERATION SELECTOR SWITCH IS IN THE ON POSITION The assumptions before proceeding are that water is supplied to the icemaker see page 7 there is proper electrical...

Страница 9: ...viously in the OFF or CLEAN position the evaporator thermistor temperature will be ignored until the circulation pump has run for 2 minutes During all harvest cycles the evaporator thermistor temperat...

Страница 10: ...ergize The clean cycle is now complete All loads will remain off as long as the selector switch remains in the CLEAN position and the power is not removed and re applied If at any time during a clean...

Страница 11: ...st appear to be a system component failure may be only a simple control air flow electrical or defrost system problem 2 2 Low Side Leaks Low side leaks consist of a break in the system at the evaporat...

Страница 12: ...he thermocouple 2 If it has been determined that there is proper contact between the thermistor and the evaporator plate the thermistor resistance value can be corresponded to the temperature see sect...

Страница 13: ...responding pressure If low side pressure is below pressure in Table A check for the following 1 A system leak 2 Capillary tube is restricted 3 Insufficient compressor If low side pressure is above pre...

Страница 14: ...d then recharge NOTE It is not uncommon to have some condensation or a slight frost on the suction line This may occur towards the end of the production cycle Liquid refrigerant is not getting into th...

Страница 15: ...valve keeping the valve cool during brazing and evacuation of the system before charging must be done to prevent damage and eventual failure of the valve Figure 3 2 Figure 3 1 A quick way to check the...

Страница 16: ...two screws that secure the top of the electrical bracket located in the front of the mechanical area see figure 3 4 7 Remove the six screws that secure the base plate to the cabinet on the bottom of t...

Страница 17: ...damp cloth 7 Remove the heat sink or damp cloth from the valve body 8 Check for leaks using dry nitrogen gas and a leak detection system 9 Flush the system and recharge 10 Reassemble reversing steps...

Страница 18: ...see figure 3 3 11 Remove the bin sensing tube with the bin thermistor remaining inside it It is not necessary to remove the bin thermistor from the sleeve Remove through the opening in the rear of th...

Страница 19: ...NOT REMOVE THE RUBBER PLUGS AT THE TUBE STUBS ON THE COMPRESSOR AT THIS TIME 29 Remove the insulation tube on the evaporator tubing harness 30 Remove the evaporator from the front of the unit The evap...

Страница 20: ...d and removed 2 Remove the access panel and rear panel at the rear of the unit see figure 3 3 3 Remove the grille by removing the two screws and disconnecting the three wires to the rocker switch Be s...

Страница 21: ...reinstall the suction line and tubing harness insulation tubes 6 Reinstall PTC starter and wire according to wire diagram 7 Reinstall compressor cap 8 Reverse steps 1 through 8 of removal for remaini...

Страница 22: ...Be sure to thoroughly flush the system and evacuate to 50 microns before weight charging If contamination was found or determined the evaporator should also be replaced at this time 4 1 Drain Valve T...

Страница 23: ...and observing for any leaks from the tubing connections or the valve itself 4 2 Water Valve The water valve supplies water to the reservoir for producing ice The valve opens for 1 0 minutes during in...

Страница 24: ...er supply line compression nut from the bottom of the water valve 5 Remove the two screws securing the water valve to the unit s support pan 6 Remove the water valve Installation Reverse the removal p...

Страница 25: ...nser fan Installation Reverse the removal procedure for installation 5 2 Thermistors This unit utilizes two thermistors for reading temperatures for input to the electronic control Each thermistor has...

Страница 26: ...eat sink compounds are Radio Shack part number 276 1372 General Electric part number 10 8108 To access and replace the evaporator thermistor 1 Remove any ice and drain the reservoir by pulling the dra...

Страница 27: ...ermistor and sensing tube from the unit 2 Use a reference temperature point that is known such as an ice bath and measure the resistance across the wire leads 3 Check the recorded resistance with that...

Страница 28: ...r switch Be sure to mark where these wires go for re assembly 4 Remove the drain valve 5 Disconnect the hot gas valve solenoid orange and white wires at the solenoid 6 Remove the hot gas valve solenoi...

Страница 29: ...minal is not used If the resistance between the terminal of the plug is 5 0 5 9 ohms the grid cutter is good At any other resistance readings it will need to be replaced Check for continuity between t...

Страница 30: ...moved it should be cleaned with ice machine cleaner Be sure to rinse the reservoir before re installing To remove the reservoir 1 From inside the unit remove the escutcheon panel 2 Remove the grid cut...

Страница 31: ...cutter into the receptacle on the side of the liner Route the plug wire between the reservoir and liner This will keep it away from the path of the ice slab 9 Re install the escutcheon panel Adjustmen...

Страница 32: ...Removal 1 Disconnect power to the icemaker 2 From inside the unit remove the escutcheon panel 3 Remove the grid cutter see section 6 1 4 Remove the ice deflector 5 Remove the reservoir see section 6 2...

Страница 33: ...e wiring diagram for the ice maker 7 2 Point to Point Wire Layout The diagram on the following page figure 7 2 shows point to point termination This diagram is also located on the back panel of the un...

Страница 34: ...Figure 7 2 35...

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