Scotsman NM1852RH Скачать руководство пользователя страница 14

MAINTENANCE AND CLEANING

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A Scotsman Ice System represents a sizable investment of time and money in any company’s
business.  In order to receive the best return for that investment, it MUST receive periodic
maintenance.
It is the USER’S RESPONSIBILITY to see that the unit is properly maintained.  It is always
preferable, and less costly in the long run, to avoid possible down time by keeping it clean;
adjusting it as needed; and by replacing worn parts before they can cause failure.  The following
is a list of recommended maintenance that will help keep the machine running with a minimum of
problems.
Maintenance and Cleaning should be scheduled at a minimum of twice per year.
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 //////////////////////////WARNING/////////////////////////////
Electrical power will be ON when doing in
place cleaning.
 Switch it OFF before
completing the cleaning procedures.
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ICEMAKING SYSTEM: In place cleaning
1.  Check and clean any water treatment
devices, if any are installed.
2.  Pull out and remove the front panel.
3.  Move the ON-OFF switch to OFF.
4.  Remove all the ice from the storage bin.
5.  Remove the cover to the water reservoir
and block the float up.
6.  Drain the water reservoir and freezer
assembly using the drain tube attached to the
freezer water inlet.  Return the drain tube to its
normal upright position and replace the end
cap.
//////////////////////////WARNING//////////////////////////////
Scotsman Ice Machine Cleaner contains
Phosphoric and Hydroxyacetic acids.
These compounds are corrosive and may
cause burns.  If swallowed, DO NOT induce
vomiting.  Give large amounts of water or
milk.  Call Physician immediately.  In case
of external contact, flush with water.  KEEP
OUT OF THE REACH OF CHILDREN.
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7.  Prepare the cleaning solution:  Mix eight
ounces of Scotsman Ice Machine Cleaner with
three quarts of hot water. The water should be
between 90-115 degrees F.

8.  Slowly pour the cleaning solution into the
water reservoir until it is full.  Wait 15 minutes,
then switch the master switch to ON.
9.  As the ice maker begins to use water from
the reservoir, continue to add more cleaning
solution to maintain a full reservoir.
10. After all of the cleaning solution has been
added to the reservoir, and the reservoir is
nearly empty, switch the master switch to OFF.
11. After draining the reservoir, as in step 6,
wash and rinse the water reservoir.
12. Remove the block from the float in the
water reservoir.
13. Switch the master switch to ON
14. Continue ice making for at least 15
minutes, to flush out any cleaning solution.
Check ice for acid taste - continue icemaking
until ice tastes sweet.
///////////////////////////////WARNING/////////////////////////
DO NOT USE any ice produced from the
cleaning solution.
Be sure no ice remains in the bin.
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15. Remove all ice from the storage bin.
16. Add warm water to the ice storage bin and
thoroughly wash and rinse all surfaces within
the bin.
17. Sanitize the bin interior with an approved
sanitizer using the directions for that sanitizer.
18. Replace the front panel.

NM1852RH

August 1992

Page 14

Содержание NM1852RH

Страница 1: ...tors two liquid line valves two control boxes two thermostatic expansion valves and an EPR valve For the Installer Page 2 For the Electrician Page 4 For the Plumber Page 5 Final Check List Page 6 Init...

Страница 2: ...y and performance They meet or exceed the standards of U L N S F and C S A Scotsman assumes no liability or responsibility of any kind for products manufactured by Scotsman that have been altered in a...

Страница 3: ...dge and using a mechanical lift install the NM1852RH onto the top of the storage bin assembly Fasten the ice machine to the bin using 4 5 15 18 2 5 cap screws Level the assembly by a Turning the leg l...

Страница 4: ...diagram The ice machine should be connected to its own electrical circuit and be individually fused Voltage when the unit is under full load must remain within the limitations listed on page 2 LOW VOL...

Страница 5: ...ween the ice maker and the water supply Drain System All drains are of the gravity type and must have a minimum of 1 4 fall per foot of horizontal run The drains must be installed to conform to local...

Страница 6: ...n removed from inside the cabinet 6 Have the electrical connections been made 7 Have the drains been installed and checked for leaks 8 Has the refrigeration supply been installed and checked for leaks...

Страница 7: ...make ice Water flows from the water reservoir and the float drops letting in more water 7 Switch on the other master switch observe that The liquid line valve opens The gearmotor runs Within a short...

Страница 8: ...80 F Measure the temperature of the evaporator outlet at the TXV bulb and check the low side pressure at the EPR valve about 24 PSIG Convert the pressure to temperature using a temperature pressure ch...

Страница 9: ...l The relays are for the gear motor with a built in time delay to clear the evaporator of ice when the unit turns off and for the liquid line valve Transformer Supplies low voltage to the circuit boar...

Страница 10: ...ing action being where the two seal faces meet Ice Sweep A plastic cap with fingers It revolves with the auger to sweep the ice into the ice chute Divider Where the ice is compressed and much of the e...

Страница 11: ...unless the ice stays between the sensors for more than 15 seconds bin full At that point the bin empty light goes out and the machine shuts down Shut Down consists of The liquid line relay opens The...

Страница 12: ...through the float valve The water then goes out the bottom of the reservoir tank to the bottom of the evaporator Reservoir overflow or evaporator condensation is routed to the drain WATER INLET DRAIN...

Страница 13: ...hermostatic expansion valve meters the liquid refrigerant into the evaporator where it boils off evaporates and absorbs heat It then moves through the ball valve and into the evaporator pressure regul...

Страница 14: ...and Hydroxyacetic acids These compounds are corrosive and may cause burns If swallowed DO NOT induce vomiting Give large amounts of water or milk Call Physician immediately In case of external contac...

Страница 15: ...from the reservoir and the tip wiped clean of mineral buildup 3 The bearing in the breaker should also be checked at least two times per year Check the bearing by removing the ice chute cover unscrewi...

Страница 16: ...on on removal of these parts see REMOVAL AND REPLACEMENT 1 To remove the auger remove front and top panel If top panel cannot be removed or if there is less than 6 clearance over the top of the machin...

Страница 17: ...C Check the spout switch It opens from excess pressure of ice inside the ice chute this should only happen when the machine does not shut off when the ice storage bin is full This switch must be manua...

Страница 18: ...n the tester to the full position The bin full light on the tester should be ON if not replace the circuit board If the bin full light on the tester is ON move the tester switch to bin empty the light...

Страница 19: ...at the liquid line valve coil Check for an open wire between the relay and the valve 2 Check the valve coil If the coil is open replace the liquid line valve 3 Check the auger drive motor centrifugal...

Страница 20: ...servoir from icemaker 8 Reverse to reassemble BIN CONTROLS Ice Level Sensors 1 Disconnect electrical power 2 Remove front panel 3 Remove control box cover 4 Locate ice chute at the base of the chute i...

Страница 21: ...ng breaker to evaporator d Lift up and remove breaker bearing assembly from auger evaporator 6 Service the bearing Check for rust rough spots and damage a The bearing is pressed into the breaker to re...

Страница 22: ...breaker to evaporator d Lift up and remove breaker from evaporator e If the auger is stuck use a slide hammer type puller to pull on the auger at the threaded hole The size of that hole is 5 8 18 Ins...

Страница 23: ...y past the grove for the snap ring 2 Replace the snap ring and pull the water seal down against it 3 The part of the water seal that rotates with the auger must also be replaced Remove the old part fr...

Страница 24: ...an new drier in the liquid line 7 Evacuate the system until dehydrated then weigh in the nameplate charge Check for leaks 8 Install auger breaker breaker bearing assembly and ice discharge chute in r...

Страница 25: ...h removal of the water seal have been performed 1 Remove the electrical wires from the gear drive motor 2 Unscrew the 4 cap screws holding the gearmotor to the gearmotor plate 3 Remove the gearmotor f...

Страница 26: ...properly aligned clean and not obstructed use the tester as follows Bin Control Note All testing is done with the electrical power on the master switch on and all reset switches reset 1 Unplug photo t...

Страница 27: ...t replace the circuit board b Move the water switch on the tester to the Water position The No Water light on the board should go OFF If not replace the circuit board If the light does go off replace...

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