Vestfrost ULTF-C74i User manual

SERVICEMANUAL - EN
FREEZERS
BIOMEDICAL SOLUTIONS
model - UlTF-C74iUlTF-C198iUlTF-C296iUlTF-C383i

Vestfrost Solutions 3
EN
CONTENTS
ATTENTION! � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 4
MAINTENANCE SCHEDULE � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 4
REPLACEMENT OF PARTS � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 5
Display - with integrated keyboard � � � � � � � � � � � � � � � � � � � � 5
Handle and inlay � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 6
Hinge and lid � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 8
Fan, Battery, Transformer, Power board � � � � � � � � � � � � � � � � � 10
UlTF-C198i, UlTF-C296i, UlTF-C383i� � � � � � � � � � � � � � � � � � � 10
Fan, Battery, Transformer, Electronic control unit UlTF-C74i � � � � �12
COOLING SYSTEM � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 14
Change compressor � � � � � � � � � � � � � � � � � � � � � � � � � � � 14
Recharching refrigerant from a service bottle� � � � � � � � � � � � � � 15
ELECTRICAL SYSTEM � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 16
Wire diagram UlTF-C198iUlTF-C296i, UlTF-C383i � � � � � � � �16
Wire diagram ULTF-C74i� � � � � � � � � � � � � � � � � � � � � � �17
SPARE PARTS� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 18
Spare parts exploded view ULTF-C74i � � � � � � � � � � � � � � � �18
Spare parts list ULTF-C74i � � � � � � � � � � � � � � � � � � � � � �19
Spare parts exploded view ULTF-C198i � � � � � � � � � � � � � � �20
Spare parts list ULTF-C198i � � � � � � � � � � � � � � � � � � � � �21
Spare parts exploded view ULTF-C296i � � � � � � � � � � � � � � �22
Spare parts list ULTF-C296i � � � � � � � � � � � � � � � � � � � � �23
Spare parts exploded view ULTF-C383i � � � � � � � � � � � � � � �24
Spare parts list ULTF-C383i � � � � � � � � � � � � � � � � � � � � �25
LIST OF PARAMETERS � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 26
List of Ultra low parameters � � � � � � � � � � � � � � � � � � � � � � � 26
List of LCP parameters � � � � � � � � � � � � � � � � � � � � � � � � � � 27
List of LCS parameters � � � � � � � � � � � � � � � � � � � � � � � � � � 28

4 Vestfrostsolutions.com EN
ATTENTION!
Before servicing or cleaning
the appliance, unplug the
appliance from the mains
or disconnect the electrical
power supply�
ATTENTION!
This service manual is in-
tended for use by persons
having electrical and me-
chanical training and a level
of knowledge of these sub-
jects generally considered
acceptable in the appliance
repair trade�The manufac-
turer cannot be responsible,
MAINTENANCE SCHEDULE
TASK SCHEDULE
Cleaning of interior Weekly
Cleaning of compressor compartment
(including condenser and compressor)
Monthly
Cleaning of sealing in the lid Quarterly
Replacement of battery for back up Every third year
All below maintenance is recommended.
Please investigate the local legislation in your area.
nor assume any liability, for
injury or damage of any kind
arising from the use of this
manual�
ATTENTION!
Bare pcbs are sensitive to
ESD, so please take precau-
tions to ensure that tools,
persons and appliance is
equalised�
ATTENTION!
Compressor and tubes can
be hot, please allow the unit
to cool down before repair-
ing�

Vestfrost Solutions 5
EN
TASK SCHEDULE
Cleaning of interior Weekly
Cleaning of compressor compartment
(including condenser and compressor)
Monthly
Cleaning of sealing in the lid Quarterly
Replacement of battery for back up Every third year
Display - with integrated keyboard
Release the display by pushing in the plast
lock (located under display) and lifting up the
panel simultanously
Carefully demount the plug/wire from the
display back side
Mount display in reverse order
REPLACEMENT OF PARTS

6 Vestfrostsolutions.com EN
Handle and inlay
Use a small flat-blade screwdriver
Place the screwdriver between the inlay and
the handle
Tilt out the inlay
Use the Torx 20 screwdriver and remove the
screw on the right side of the handle

Vestfrost Solutions 7
EN
Turn the lever up (1)
Pull the aluminum tube to the right (2)
The right plastic part and the aluminum tube
are now removed
Use the Torx 20 screwdriver and remove the
screw on the left side of the handle
Mount the new handle in reverse order
1
2

8 Vestfrostsolutions.com EN
Remove hinge covers
Pull out the bottom hinge cover
Pull up on the top hinge cover
Important The lid must be fully open before
proceeding
Use the Torx 20 screwdriver to loosen 4
screws in each hinge.
Hinge and lid
1
2

Vestfrost Solutions 9
EN
The lid is removed with a light lift.
Place the lid on top of the unit
Use the Torx 20 screwdriver to remove 4
screws in each hinge
Mount the new hinde/lid in reverse order
IMPORTANT check that the lid flush with the
cabinet (mounted straight) ...
... that the sealing strip closes tightly. Check-
with a piece of paper

10 Vestfrostsolutions.com EN
For access tto the engine room compartment,
remove engine room cover. Engine room
cover is fixed with seven built-in clips
2 pcs at each side and 3 at the bottom
To release the clip function use a small flat-
blade screwdriver
For each released clips, gently pull out the
cover.
The battery is removed by removing the cable
tie with eg cutter plier, and disconnect the red
and black wire.
W
Fan, Battery,Transformer, Power board
UlTF-C198i, UlTF-C296i, UlTF-C383i

Vestfrost Solutions 11
EN
Fan, Battery,Transformer, Power board
UlTF-C198i, UlTF-C296i, UlTF-C383i
Remove the nuts and wire connectors and
the box with transformer and power board
holder can be pulled out of the compressor
compartment
Remove the power board by removing the 5
screws (one in the middle and one in each
corner of the pore board). The transformer
is removed from the holder by removing 2
screws.
Unplug fan from power board and Remove
the 2 bolts with hexagon head
To remove the fan from the bracket, remove
2 bolts with hexagon head

12 Vestfrostsolutions.com EN
Fan, Battery,Transformer, Electronic control unit UlTF-C74i
For access tto the engine room compartment,
remove engine room cover. Engine room
cover is fixed with 2 screws
Unplug fan from power board and Remove
the 2 bolts with hexagon head
The battery is removed by removing the
bracket (2 screws), and disconnect the red
and black wire.

Vestfrost Solutions 13
EN
Remove 2 nuts and wire connectors and
the box with transformer and power board
holder can be pulled out of the compressor
compartment
Remove the power board by removing the 5
screws (one in the middle and one in each
corner of the pore board). The transformer
is removed from the holder by removing 2
screws.

14 Vestfrostsolutions.com EN
Change compressor
Repairs to the cooling system may only
be carried out by trained professionals.
When changing the compressor, the
filter drier must also be replaced.
Is is important to cut out the filter drier,
as heating with solder flame will release
moisture inside the dry filter. This will
vaporize and drive moisture from filter
drier back into system.
The quantity and type of the refrigerant
used in your appliance is indicated on the
rating plate.
Do not make sharp bending angels on
the pipes.
The distance between the pipes must be
at least 12 millimetres.
COOLING SYSTEM

Vestfrost Solutions 15
EN
Recharching refrigerant from a service bottle
The recharging shall take place in a room
where the ambient temperature is be-
tween 20 and 25 °C.
1. Connect service bottle, compressor
and vacuum pump (A) to a T
2. Open valve (C) and let vacuum pump
run for minimum 30 min
3. Close valve (C)
4. Place the bottle on a scale if possi-
ble.
5. Open valve (B) slowly
6. When the refrigerant stops flowing
into the system, start the compres-
sor.
7. Let the compressor run for 5 min
8. Check amount of refrigerant charged
on the scale, should be approx. the
same as on the rating plate
9. Repeat from 5 if necessary
Note! If you start the compressor at point
8 with the valve open then you can ruin
the compressor.
C
A
B

16 Vestfrostsolutions.com EN
ELECTRICAL SYSTEM
Wire diagram UlTF-C198iUlTF-C296i, UlTF-C383i

Vestfrost Solutions 17
EN
Wire diagram UlTF-C198iUlTF-C296i, UlTF-C383iWire diagram ULTF-C74i

18 Vestfrostsolutions.com EN
Spare parts exploded view ULTF-C74i
SPARE PARTS

Vestfrost Solutions 19
EN
Spare parts list ULTF-C74i
UTLF-C74i 3.2
Position Item number Item name
0061 0-6538001 Filter drier,
0087 0-6038175 Base plate fittings, complete
0129 8-036510297 Compressor - Complete NEU2155U Embraco
0898 7090048 Sensor
3011 8471472 Display
3104 7090466 Transformer
5054 2040229 Fittings for condenser
5055 6010135 Condenser
5144 5200908640002 Lid foamed without handle/hinges
5145 6000986 Lid, lower380 x 380 x 27
5346 7095666 Electronic control unit
5399 8471798 Wheels with break
5402 1510059 Hinge
5450 3011135-01 Top part for hinge cover
5451 3010032-01 Bottom part for hinge cover
5548 7-049954504 Nature-R - refilling with filter
5562 6520467 Terminal Board Complet
5605 304090501 Handle with lock (push and turn)
5606 8090314 Inlay for handle,
5682 1510231 Key, set - 2pc.
5683 2040145 Catch for handle
5684 3010265-01 Cover for catch
5685 600098801 Lock with keys,(push and turn)
5860 7060046 Battery
5875 6520867 Dry contact for Alarm complete / Terminal box 3 pol
5882 6520393 Cover
5972 2042987 Motor screen
6553 7535084 Mains lead
7100 7090478 Fan
XXXX 1006628 Wire diagram
Subject to changes without prior notice.
1-X07866400710590 Version :...
A
Date :............. 09-06-2022
A
pproved b
y
:.... sus

20 Vestfrostsolutions.com EN
Spare parts exploded view ULTF-C198i