Winterhalter Gastronom GR 64 User manual

89003809
09/98 sch Winterhalter Gastronom GmbH Postfach 1152
D-88070 Meckenbeuren 1
Operating Instructions
Winterhalter Gastronom utensil washing machines GR 64, GR 65, GR 66, GR 66/1
Contents:
1. Intended purpose.................................................................................................. Page 1
2. Installation and initial start-up................................................................................ Page 1
3. Safety information for the operator........................................................................ Page 2
4. Operating elements............................................................................................... Page 3
5. Before the wash.................................................................................................... Page 4
6. Wash cycle............................................................................................................ Page 6
7. After the wash....................................................................................................... Page 8
8. Care and maintenance.......................................................................................... Page10
9. Faults.................................................................................................................... Page11
10. Optional extras.......................................................................................................Page12
11. Special notes......................................................................................................... Page13
12. Emission data........................................................................................................ Page13
1.Intended purpose
The Winterhalter Gastronom utensil washing machines GR 64, GR 65, GR 66 and
GR 66/1 are designed for cleaning all types of utensils used in catering establishments.
They may only be used for this purpose, and in accordance with the operating instructions.
Any other usage or modification of the machines’ design without our written consent will ex-
empt us from all guarantee and product liability obligations.
2.Installation and initial start-up
The machine must be installed and connected to the on-site supply and waste pipes in
accordance with the “Installation instructions for Winterhalter Gastronom utensil
washing machines“.
The initial start-up (or so-called “running-in” phase) and the briefing of the machine opera-
tor must be performed by Winterhalter service technicians in accordance with the “Start-up
regulations for Winterhalter Gastronom dish and utensil washing machines“. For this
purpose, you should contact the Winterhalter representative responsible for your factory
once the machine has been correctly connected to the on-site supply pipes.
Your dishwasher is not ready to be put into operation until all connections have been
completed.
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3.Safety information for the operator
The following points must be observed to ensure safe operation of the machine:
•Only use this machine after having read and understood the operat-
ing instructions and been personally instructed in the operation and
workings of the machine.
•Only operate the machine as described in these operating instruc-
tions.
•Risk of injury: Do not open any coverings or machine parts which
require the use of a tool.
•Risk of electric shocks: Do not interfere with the electrical equip-
ment of the machine, but always call in a specialist (professional
electrician).
•When using detergent and clear rinse products, observe the safety
information printed on the packaging.
•Wear protective gloves for any work which has to be performed in-
side the tank while the machine is in operation or during the daily
maintenance/shutdown routine.
•In the event of any faults not due to the on-site water or power sup-
ply, please contact the Winterhalter customer service team.
•The machine is not hose-proof: do not spray the outside with a
high-pressure or steam-jet cleaner.

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4.Operating elements
1 Mains switch 1st actuation = machine on (lamp illuminated)
2nd actuation = machine off (lamp extinguished).
2 Indicator lamp for deter-
gent solution temperature Lights up until operating temperature of detergent solu-
tion is reached.
3 Programme 1 Actuation ="Short" programme selected (lights up while
programme is in progress).
Standard setting: 2.4 minutes
4 Programme 2 Actuation ="Long" programme selected (lights up while
programme is in progress).
Standard setting: 5 minutes
5 Continuous circulation of
detergent solution 1st actuation = Circulation on (lamp illuminated).
2nd actuation = Circulation off (lamp extinguished).
6 Continuous freshwater
rinse / tank cleaning Continuous actuation = Activates freshwater rinse for cleaning inside tank.
7 Drain tank When this switch is pressed, the discharge valve for
draining the tank is opened for 5 minutes.
Once the tank has been drained, press the switch
again to extinguish the indicator lamp in the push-
button switch.
8 Manual cold-water pre-
rinse Optional extra for rinsing off albuminous impurities from utensils in order to avoid congealing.
See page 12 for further details.
Note on cycle times: In order to obtain the freshwater rinse temperature of 85°C important for hygi-
enic cleaning, the time allowed for the wash phase is extended until a temperature of 85°C is reached
in the boiler.
For this reason, the specified cycle times are only possible provided the boiler heating power is
adjusted to the water inlet temperature.

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5.Before the wash
5.1.Rendering the machine ready
for operation
To do this, proceed as follows:
A) Open the on-site shut-off valve of the
water supply pipe.
B) Turn on the on-site main switch.
At the same time, test the on-site resid-
ual-current operated circuit-breaker for
your own safety by pressing the test but-
ton.
C) Open the door.
D) Check whether the surface strainers
and strainer basket are correctly in-
serted.
E) Check to make sure all wash arms
are in place.
F) Close the door.
G) Press the green power switch (1)
(lamp on).
This causes the tank to be filled auto-
matically.
H) Make sure the pushbutton switch
"Drain tank" (7) is switched off. The
indicator lamp should not be illuminated.
As soon as the necessary water level is
reached in the tank, the machine is
heated to operating temperature.
The heating time depends on the tem-
perature of the incoming water.
I) Once the required operating tempera-
tures are reached, the white indicator
lamp (2) is extinguished.
J) Check the filling level in the rinse aid
container and top it up if necessary.
Make sure the rinse aid container never
becomes completely empty.
Additional rinse aid is metered automati-
cally.
We recommend the use of our Winterhal-
ter Gastronom rinse aid product.

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5.2.Preliminary detergent dosage
Add a preliminary amount of detergent
powder to the heated tank water.
Preliminary dosing table for Winterhalter
Gastronom detergent P 65:
Tank
volume Dosage (3g/l)
Detergent
P 65
Winter-
halter
measur-
ing cup
GR 64,
GR 65 85 l 255 g 1
GR 66 100 l 300 g 1 1/3
GR 66/1 125 l 375 g 1 1/2
If using other detergents, follow the dosing
directions printed on the packet.
Bear in mind that more detergent will be
needed in the case of heavily soiled items
or very hard water, for example.
To ensure that the detergent mixes in
thoroughly and does not settle on the floor
of the tank, you should switch on the ma-
chine briefly after adding the preliminary
dose. Press pushbutton (3).
NOTE
Only use detergent and rinse aid prod-
ucts which are suitable for commercial
dishwashers.
Observe the safety information printed
on the packaging.
We recommend the use of our Winterhal-
ter Gastronom detergent.
NOTE
If the machine is equipped with an auto-
matic metering device (optional extra),
there is no need to add detergent manu-
ally.
See the corresponding instruction manual
on how to use this device.
You can now begin washing.

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6.The wash cycle
Before you put the utensils in the machine,
you should remove the worst of the food
leavings. Sauce remnants should be
tipped away and dried-on residues left to
soak.
Place items such as bowls, pots, pans,
meat trays and so on in the utensil rack
with the opening facing downwards. You
can fill the spaces in between with small
items such as serving spoons, etc. The
utensils should not be piled on top of each
other, however, as this prevents the spray
jet from reaching all the items and leads to
imperfect results.
Baking trays should be tilted forwards in
the insert, making sure that the dirty sides
are facing downwards.
Use the plastic accessory rack for cutlery
and other small items. Once loaded, this is
placed on top of the utensil rack.
Push the rack into the machine and close
the door.
NOTE
Lightweight parts made of plastic etc. may
slip or turn over during the wash.
If necessary, you can place a plastic rack
on top of these.
The machine has two alternative cycle
times. The correct programme is chosen
according to the degree of soiling of the
items to be washed.
For normally soiled items with dried-on
dirt, use programme 2.
This is selected by pressing pushbutton
(4).
For lightly soiled items with non dried-
on dirt, use programme 1.
This is selected by pressing pushbutton
(3).
Operating sequence:
•Circulation of detergent solution:
intensive cleaning from above and
below.
•Freshwater rinse with water heated to
85°C (containing rinse aid).
•The indicator lamp in the selected
pushbutton remains illuminated
throughout the programme sequence.
•Once the lamp is extinguished, the
door can be opened and the rack can
be pulled out of the machine onto the
opened lower door to allow removal of
the utensils.
•Do not remove the rack beforehand,
as this will interrupt important stages of
the programme.
•Reload the rack and continue washing
as described above.
•Make sure that the door remains
closed when the machine is not in
operation in order to avoid an un-
necessary waste of energy.

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Re-dosing of detergent
The concentration of detergent in the de-
tergent solution decreases steadily during
the washing process (due to the freshwa-
ter rinse).
You should therefore add more detergent
powder after approx. 10 wash cycles:
Re-dosing table for Winterhalter Gastro-
nom detergent P 65:
Fresh-
water
rinse
Dosage (3g/l)
Detergent
P 65
Winter-
halter
measur-
ing cup
GR 64,
GR 65 approx. 5 l/rackb 150 g 3/4
GR 66 approx.
8 l/rack 240 g 1
GR 66/1 approx.
7.5 l/rack 225 g 1
After adding the detergent, start pro-
gramme 1 immediately to make sure it
mixes in thoroughly.
Heavily soiled items...
...can be washed intensively (max. 15
minutes).
For this purpose, press the "Continuous
circulation" switch (5).
This switch lights up during operation. To
end the wash cycle, press switch (5)
again. The lamp in the switch is then ex-
tinguished and the freshwater rinse fol-
lows automatically.
NOTE
If the maximum time of 15 minutes is ex-
ceeded, the machine switches to fault
mode (see page 11).
Routine checks:
•Check the rinse aid level in the con-
tainer.
•Check the washed items for cleanli-
ness.
•Check that the temperature indicator
lamp (2) goes out each time. This
means that the setpoint temperatures
have been reached.
•Check the strainer basket and sur-
face strainers inside the machine for
dirt and clean them if necessary.
The water does not have to be drained
off for this purpose.

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7.After the wash
A) Open the door and remove the rack
from the machine.
B) Close the door.
C) Press the pushbutton switch "Drain
tank" (7).
D) After draining the tank, clean the in-
side of the tank by pressing the push-
button "Clean tank" (6) briefly (approx.
10s).
E) Open the door and check whether
the inside of the tank is clean. If neces-
sary, repeat the cleaning process or re-
move the remaining dirt with a brush or
soft scraper.
F) If the tank has not been fully drained
due to the automatic re-closure of the
tank drain valve, switch the pushbutton
switch "Drain tank" (7) off briefly then
on again.
Once the wash tank has been fully
drained and cleaned:
G) Remove the strainer basket and sur-
face strainers.
H) Clean the strainer basket and sur-
face strainers.
I) Reinsert the strainer basket and
surface strainers.
J) Switch off the pushbutton switch
"Drain tank“ (7) by pressing it again.
K) Then switch off the machine imme-
diately afterwards by pressing the
power switch (1).
Otherwise, the machine will be filled again.

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L) Turn off the on-site main switch.
M) Close the on-site shut-off valve.
N) Clean the outside of the machine
with a soft cloth and suitable stainless
steel cleaning agents.
We recommend Winterhalter Gastro-
nom stainless steel cleaner and stain-
less steel polish.
O) Leave the doors of the machine
open to allow any remaining moisture
inside the tank to evaporate.

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8.Care and maintenance
Carry out the following maintenance jobs at regular intervals:
A) Subject machine to functional check
B) Remove and clean wash arms and nozzles, then remount them correctly
C) Clean residues from inside of machine
D) Clean fine-mesh strainer in dirt trap downstream of the on-site water supply
E) Clean electrode of conductivity-sensitive metering unit if installed
F) Decalcify if necessary as follows:
•Drain machine.
•Stop detergent supply.
•Refill machine.
•Add decalcifier solution according to manufacturer’s directions.
NOTE
Observe the safety instructions printed on the packaging.
•Operate the machine: activate the continuous circulation function for approx. 10 min-
utes by pressing switch (5) and releasing it again after 10 minutes.
•Drain the machine.
NOTE
Under no circumstances should the decalcifier solution be left in the machine for
several hours.
•Start up the detergent supply again
•Refill the machine
•Run the machine for a further 10 minutes or so
•Drain the machine or use it for the current wash.
During the daily cleaning routine, make sure that no rusty foreign bodies are left on the floor
and walls of the tank, as these can cause even "stainless” steel to rust. Such rust particles
may originate from non-stainless kitchenware, cleaning aids or non rust-proofed supply
pipes.
Besides the daily cleaning and regular maintenance routines, the machine should undergo
thorough servicing by a specialist at least twice a year.
We recommend that you have this done by a Winterhalter service technician.
Use suitable cleaning agents and preservatives to treat the outside of the machine. We
recommend Winterhalter Gastronom stainless steel cleaner and stainless steel polish.

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9.Faults...
...can sometimes be rectified by the user.
Check the possible causes indicated here and eliminate them accordingly.
If you are unable to determine the cause, contact one of the Winterhalter service
technicians.
WARNING Do not open any coverings or machine parts for which
the use of a tool is required.
Fault Possible cause
Machine cannot be switched on. •On-site main switch is not turned on.
•Internal cause: contact the responsible customer
service team.
Machine is not filling up. •On-site main shut-off valve is not open.
•Dirt trap in supply water pipe is blocked.
Tank inlet is filling the machine continuously
but the "Drain tank" switch (7) is not illumi-
nated.
•Internal cause: contact the responsible customer
service team.
Utensils are still dirty. •Detergent metering omitted, or interrupted due to
empty container.
•Pump intake strainer blocked.
•Utensils not inserted correctly in the machine.
•Wash nozzles in wash arms blocked.
•Setpoint temperatures not reached.
Utensils still wet. •Rinse aid supply interrupted due to empty con-
tainer.
•Setpoint temperatures not reached.
Indicator lamps in programme keys (3) and
(4) flashing. •Wash cycle was interrupted as the setpoint tem-
perature was not reached in the boiler after 15
minutes. Switch the machine off and on again. If
the keys are still flashing, the problem is due to a
machine-internal cause, and you should contact
the responsible customer service team.
Indicator lamps in programme keys (3) and
(4) are flashing and indicator lamp in switch
(5) is constantly illuminated.
•The 15-minute time limit for the continuous circula-
tion cycle was exceeded. Press switch (5), then
turn the machine off and on again.
Tank water draining off incompletely or not at
all. •Release switch (7) and press it again in order to
open the tank drain valve for a further 5 minutes.

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Postfach 1152
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10.Optional extras
Manual cold-water pre-rinse
Purpose:
This device serves to rinse off albuminous impurities (meat and blood residues) from the
utensils in order to prevent the albumin content from congealing on contact with the hot de-
tergent solution.
Application:
Before activating programme 1 or 2, keep pushbutton (8) pressed for approx. 10s in order to
pre-rinse the utensils with cold freshwater.
Note on manual re-dosing of detergent:
Please note that the concentration of detergent in the detergent solution decreases more
rapidly if you use the cold-water pre-rinse. You should therefore top up the detergent after
only 5 wash cycles if using this device on a permanent basis (see table on page 7).

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11.Special notes
Should the detergent solution become heavily soiled after a day’s intensive washing, you
should drain it off, clean the inside of the tank and then refill the tank.
In this case you will need to add a preliminary dose of detergent again as described in sec-
tion 5.2.
Please only use detergent and rinse aid products which are suitable for commercial utensil
washing machines. We recommend our own products for this purpose, as they have been
specially developed for our machines.
All weights and measures specified in this manual for detergent and rinse aid refer to Win-
terhalter products.
The machine must be protected from frost, as freezing may cause damage to water con-
ducting systems.
These operating instructions are an integral part of the machine!
In the event of a resale of the utensil washing machine, the operating instructions
must be passed on to the new owner/operator together with the machine.
12.Emission data
Noise emission:
Workplace-related emission level (DIN EN ISO 11202): LpAeq =dB