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NHT UL BL
on all surfaces protruding above the solution-level and on
the underside of the top cover(s).
4 - Install the top cover(s) and operate the unit. Allow the
solution to agitate for about two minutes. Drain the solution
out of the bowl(s).
5 - Use fresh product to chase any remaining sanitizer from
the bottom of the bowl(s). Drain this solution. Do not rinse
out the machine.
5. 5 REAR SEAL MAINTENANCE
IMPORTANT
The rear seal, P.N. 00145 (Nr. 11 in the exploded view),
must be kept lubricated, in the shaded rear area, with
food grade approved lubrificant. To prevent from
damages to the machine,it must be replaced every 2000
hours.
To remove the rear seal sqeeze it to break the suction (see
figure 16)
6 ROUTINE MAINTENANCE
IMPORTANT
In order to prevent damages to the machine, the "Rear
Seal" must be replaced every 2000 hours.
1 - Daily: inspect the machine for signs of product leaks past
seals and gaskets. If proper assembly does not stop leaks
around seals or gaskets, check for improper lubrication,
worn or damaged parts. Replace parts as needed.
2 - Monthly on NHT 2 UL and NHT 3 UL models: remove
the dust from the condenser filter. A blocked filter will
ATTENTION
Before any disassembly and/or cleaning procedure
make sure that the dispenser is disconnected from its
power source by unplugging it or switching off the 2-
pole wall breaker.
reduce performance and could cause compressor failure.
10
figure 16
3 - Replacement of lighted top cover bulb: remove the fixing
screw placed in the upper part of the top cover, remove the
lower part and replace the bulb (using a 24-28V 21W max
bulb). Reassemble the top cover and replace the fixing
screw.(vedere figure 17)
ATTENTION
Condenser fins are very sharp. Use extreme caution
when cleaning.
6. 1 MAINTENANCE (TO BE CARRIED OUT
BY QUALIFIED SERVICE PERSONNEL
ONLY)
1 - Annually: remove the panels and clean the inside of the
machine including the base, side panels, condenser, etc.
2 - Never remove the insulating jacket from around the
suction tubing of the evaporator (the copper tubing located
on the right side of gear motor). In case the insulating
jacket is missing replace the entire parts with original
spare parts from the supplier.
3 - In order to prevent any damages to the dispenser, all
plastics parts must be lubricated only with grease supplied
by the manufacturer or with another lubricating product
suitable for polycarbonate.
IMPORTANT
The electric diagram of the dispenser is located in the
inner part of the dispensing side panel.
7 DEFROST TIMER (OPTIONAL)
The Defrost Timer, located on the right side of the unit,
automatically switches the dispenser from Granita mode to
Soft Drink mode and the opposite. This means that during
defrost periods frozen Granita will melt to thermostat setting
temperature and once defrost period has expired, the product
figure 17
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