Viking VUIM150, Сервисный журнал

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9. Install system access valve(s) and recover refrigerant. After recovering, be sure to
cap off the access valve to prevent contamination of the system.
10. Disconnect the wires at the solenoid, remove the solenoid-retaining clip, and
remove the solenoid (see figure #3-2)
11. Un-braze the brazed union upstream of the hot gas valve (see figure #3-2). Be sure
to cap off after tubing has cooled
12. Un-braze and remove the capillary tube from the drier assembly.
13. Un-braze the drier assembly at the end of the condenser (see figure #3-1). Be sure
to cap off after cooling.
Installation:
1.
Bend hot gas valve tubing similar to one being replaced. Do not kink tubing or
overstress tubing at valve joints.
2. Braze in new drier assembly and then the capillary tube.
3. Apply a heat sink or a damp cloth on the valve body to keep heat away. Failure to
keep the valve body cool will result in a leaky valve.
4. Braze the hot gas valve tube (from the side of the valve) into the tee on the drier
assembly.
5. Braze the hot gas valve tube (from the bottom of the valve) into the evaporator
bypass tube.
6. Cool the brazed joints with 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 1 through 10.
3.2 Evaporator
The evaporator uses evaporating refrigerant to remove heat from the water that flows
over the evaporator plate to form an ice slab. The ice slab will simply slide down the
evaporator plate onto the grid-cutter during harvest.
The evaporator plate will over time have a build up of mineral deposits. The evaporator
will
not need to be replaced due to the mineral deposits. These deposits must be
removed periodically for proper icemaker performance.
The evaporator must also be free of nicks and scratches. A nice polished and smooth
evaporator will allow the ice machine to perform correctly, giving the best performance
by allowing the ice slab to slide freely and allowing the water to have proper evaporator
to water contact. If nicks and scratches are found, replacement is not needed. Simply
remove the nicks and scratches with fine sanding material and then use a polish for
stainless steel.
If the evaporator has a leak, it should be replaced, a leak detection device will confirm a
leaking evaporator assembly.
Remember, if a leak in the evaporator, accumulator, or
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