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INSTALLATION MANUAL 

Refrigeration unit  

Series Uno Undermount

 

UN120 | UN120 Multi 

 

2

 

 

rev.02

 

 

REVISION 

 
 

 
 
 
 

The information contained in this manual is the property of ZANOTTI S.p.A. 

The  drawings  and  other  documents  accompanying  the  refrigeration  unit  are  the  property  of  ZANOTTI 
S.p.A. 

It is forbidden to distribute and/or duplicate, in any form, this manual, even partially, without the written 
authorisation of ZANOTTI S.p.A. 

ZANOTTI  S.p.A.  reserves  the  right  to  change,  without  prior  notice,  the  characteristics  of  the  product 
described in this manual. 

In  case  of  doubt  or  difficulty  in  understanding  or  interpreting  the  manual,  the  original/official  version 
indicated as "ORIGINAL INSTRUCTIONS" on the cover, must be considered as the valid version. 

The  contents  of this manual  have  been  carefully  checked to  ensure  they  correspond  to  the  system  in 
question. 

However,  as  possible  differences  cannot  be  excluded,  the  contents  of  this  document  are  periodically 
checked and any corrections or modifications will be included in the next edition. 

Some of the images included in this manual should only be considered as an example, as they may not 
refer to the refrigeration unit described here. 

 

 

DATE 

REVISION 

DESCRIPTION 

12/2021 

01 

First version 

03/2022 

02 

Revision chapter 3.7: 5 and 6 fans single-temperature 

evaporators added. 

 

 

 

 

 

 

 

 

 

 

 

 

Содержание UNO Series

Страница 1: ...Refrigeration excellence since 1962 REFRIGERATION UNIT Series Uno Undermount INSTALLATION MANUAL TRANSLATION OF THE ORIGINAL INSTRUCTIONS...

Страница 2: ...oubt or difficulty in understanding or interpreting the manual the original official version indicated as ORIGINAL INSTRUCTIONS on the cover must be considered as the valid version The contents of thi...

Страница 3: ...1 7 Plant components 8 2 TECHNICAL DATA 9 2 1 Dimensions 9 2 1 1 Condenser unit 9 2 1 2 Evaporators 12 2 1 2 1 Flat two fan evaporator 12 2 1 2 2 Flat three fan evaporator 14 2 1 2 3 Three fan cubic E...

Страница 4: ...ature version connection 33 3 7 4 2 units 3 fans evaporator single temperature version connection 34 3 7 5 Cubic evaporator connection 35 3 8 Drain hoses installation 36 3 9 In cab controller installa...

Страница 5: ...ti INSTALLATION MANUAL rev 02 5 4 3 3 Emergency circuit 50 4 3 4 Key 51 4 4 Wiring diagram multi temperature version 53 4 4 1 Power board 54 4 4 2 Multi temperature board 55 4 4 3 Electronic board 56...

Страница 6: ...ect installation and maintenance of the unit 1 2 Symbols The manual uses some symbols which are used to draw the reader s attention and highlight some particularly important aspects SYMBOL MEANING NOT...

Страница 7: ...s of behaviours and obligations to be observed while performing the various installation activities envisaged on the unit This is to ensure personnel equipment and the environment remain safe 1 5 Manu...

Страница 8: ...NSTALLATION MANUAL Refrigeration unit Series Uno Undermount UN120 UN120 Multi 8 rev 02 1 7 Plant components Figure 1 Refrigeration unit Uno Undermount 1 In cab controller 3 Condenser unit 2 Evaporator...

Страница 9: ...ermount UN120 UN120 Multi INSTALLATION MANUAL rev 02 9 2 TECHNICAL DATA 2 1 Dimensions 2 1 1 Condenser unit NOTE The condenser unit is equipped with brackets for installation Dimensions in mm in Figur...

Страница 10: ...INSTALLATION MANUAL Refrigeration unit Series Uno Undermount UN120 UN120 Multi 10 rev 02 Dimensions in mm in Figure 4 Rear view Figure 5 Top View...

Страница 11: ...Refrigeration unit Series Uno Undermount UN120 UN120 Multi INSTALLATION MANUAL rev 02 11 Dimensions in mm in Figure 6 View of cab side Figure 7 Engine side view...

Страница 12: ...nit Series Uno Undermount UN120 UN120 Multi 12 rev 02 2 1 2 Evaporators 2 1 2 1 Flat two fan evaporator Dimensions in mm in Figure 8 Rear view 1 Defrosting 12 mm 0 47 in 3 Suction 22 mm 0 87 in 2 Liqu...

Страница 13: ...Refrigeration unit Series Uno Undermount UN120 UN120 Multi INSTALLATION MANUAL rev 02 13 Dimensions in mm in Figure 10 Side view Figure 11 View 3 4...

Страница 14: ...ation unit Series Uno Undermount UN120 UN120 Multi 14 rev 02 2 1 2 2 Flat three fan evaporator Dimensions in mm in Figure 12 Rear view 1 Defrosting 12 mm 0 47 in 3 Suction 28 mm 1 10 in 2 Liquid 10 mm...

Страница 15: ...Refrigeration unit Series Uno Undermount UN120 UN120 Multi INSTALLATION MANUAL rev 02 15 Dimensions in mm in Figure 14 Side view Figure 15 View 3 4...

Страница 16: ...INSTALLATION MANUAL Refrigeration unit Series Uno Undermount UN120 UN120 Multi 16 rev 02 2 1 2 3 Three fan cubic Evaporator Dimensions in mm in Figure 16 Rear view Figure 17 Top View...

Страница 17: ...Refrigeration unit Series Uno Undermount UN120 UN120 Multi INSTALLATION MANUAL rev 02 17 Dimensions in mm in Figure 18 Side view Figure 19 View 3 4...

Страница 18: ...geration unit Series Uno Undermount UN120 UN120 Multi 18 rev 02 2 2 Weights UN120 UN120 MULTI kg lb kg lb Road mode External power supply mode 510 1124 510 1124 Road mode only 475 1047 475 1047 Evapor...

Страница 19: ...ATION MANUAL rev 02 19 3 INSTALLATION 3 1 Installation layout Figure 20 Installation layout Left side 1 In cab controller 5 Defrosting line 2 Evaporator connection cable 6 Liquid line 3 Evaporator 7 S...

Страница 20: ...tor connection cable 15 KB battery relay 3 Evaporator 16 Diesel fuel tank 4 In cab controller connection cable 17 Diesel fuel pump 9 Fuel pick up pipe 18 Battery positive cable 10 Diesel fuel pump pic...

Страница 21: ...oceeding with the installation of the unit on the truck it is necessary to check that you have the following tools available Protective goggles and PPE Drill Drill bits Tape Metro Mechanical tools Lad...

Страница 22: ...e 3 3 1 3 Battery optional Muffler kit see 3 3 1 4 Diesel fuel pump kit see 3 3 1 1 Immersion pipe Electrical connection kit see 3 3 1 2 Sealing gasket Silencer pipe Fuel tank optional Fastening screw...

Страница 23: ...2 Electrical connection kit Flying socket Fuse base Fuse terminal Fuse support Fuse base Blade fuse 3A Simple Envelope 8X15 Red pre head head connector 1 5 3 3 1 3 Battery holder kit Battery holder bo...

Страница 24: ...th the unit Remove the coatings and accessories of the unit present Attach the unit using the holes in the supports A Figure 22 to a suitable lifting device and lift it slightly Figure 22 Anchor brack...

Страница 25: ...ollows With an 8 mm Allen wrench open the front panel fixtures Figure 23 Slide the front panel leftward to remove it Figure 23 Unscrew the screws that fix the electrical panel see arrows Figure 24 Ove...

Страница 26: ...INSTALLATION MANUAL Refrigeration unit Series Uno Undermount UN120 UN120 Multi 26 rev 02 3 5 1 Mounting brackets Dimensions in mm in Figure 25 Supports Rear view...

Страница 27: ...Refrigeration unit Series Uno Undermount UN120 UN120 Multi INSTALLATION MANUAL rev 02 27 Dimensions in mm in Figure 26 Supports Top View...

Страница 28: ...paragraph To install the evaporator proceed as follows Slowly unscrew the caps on the defrost lines 1 Figure 27 liquid 2 and suction 3 to allow the nitrogen to gradually escape Figure 27 Protective ca...

Страница 29: ...Refrigeration unit Series Uno Undermount UN120 UN120 Multi INSTALLATION MANUAL rev 02 29 3 6 1 Positioning the evaporators Figure 28 Positioning the evaporators...

Страница 30: ...allation and application NOTE Apply refrigerant oil to all refrigerant pipes O rings prior to assembly Fabricate a 28 mm 1 10 in suction pipe from the evaporator to the condenser Use the provided flan...

Страница 31: ...no Undermount UN120 UN120 Multi INSTALLATION MANUAL rev 02 31 3 7 1 Condenser unit connection Figure 29 Condenser unit connections 1 Liquid 10 mm 0 39 in 3 Defrosting 12 mm 0 47 in 2 Suction 28 mm 1 1...

Страница 32: ...unit Series Uno Undermount UN120 UN120 Multi 32 rev 02 3 7 2 5 fans evaporator single temperature version connection Figure 30 Connecting the 5 fans evaporator 1 Liquid 10 mm 0 39 in 3 Defrosting 12 m...

Страница 33: ...rmount UN120 UN120 Multi INSTALLATION MANUAL rev 02 33 3 7 3 6 fans evaporator single temperature version connection Figure 31 Connecting the 6 fans evaporator 1 Liquid 10 mm 0 39 in 3 Defrosting 12 m...

Страница 34: ...mount UN120 UN120 Multi 34 rev 02 3 7 4 2 units 3 fans evaporator single temperature version connection Figure 32 Multi temperature version connection with two three fan evaporators 1 Liquid 10 mm 0 3...

Страница 35: ...t Series Uno Undermount UN120 UN120 Multi INSTALLATION MANUAL rev 02 35 3 7 5 Cubic evaporator connection Figure 33 Cubic evaporator connection 1 Liquid 10 mm 0 39 in 3 Defrosting 12 mm 0 47 in 2 Suct...

Страница 36: ...directly out of the cold storage to allow faster water drainage To install the drain hoses proceed as follows Insert the entire length of the resistance wire into the drain hose if present CAUTION Do...

Страница 37: ...Refrigeration unit Series Uno Undermount UN120 UN120 Multi INSTALLATION MANUAL rev 02 37 3 9 In cab controller installation Figure 35 Installation of the support Figure 36 Connector connection...

Страница 38: ...INSTALLATION MANUAL Refrigeration unit Series Uno Undermount UN120 UN120 Multi 38 rev 02 Figure 37 IP67 Remote Control On Demand...

Страница 39: ...10Diesel fuel pump installation To install the diesel fuel pump proceed as follows Apply hydrocarbon resistant sealant to points A Figure 38 of the fittings Install the diesel fuel pump complete with...

Страница 40: ...8 Fuel pick up pipe 2 Fuse 9 Fuel pick up pipe filter 3 Card connection cable guard fuse 10 Diesel fuel tank 4 Diesel fuel pump 11 Fuel pick up supply pipe 8 mm 5 16 5 Diesel fuel pump connection cabl...

Страница 41: ...ent Figure 40 Installing the battery compartment 1 HH screw 6x16 8 Battery locking bracket 2 Flat washer 6x12 9 Battery holder box with relay brackets 3 HH screw 10x40 10 Battery holder cover 4 Flat w...

Страница 42: ...Battery connections and KB relay Figure 41 Battery connections and KB relay 1 Battery A Power cable from the main fuse 2 Maximum system guard fuse 200 A B To the positive pole of the unit 3 Display gu...

Страница 43: ...0 microns keep the suction for about an hour Close the vacuum pump valve switch off the pump checking that the gauge reading for the vacuum pump does not exceed 2000 microns in the following thirty mi...

Страница 44: ...ing checks Correct fixing of all the mechanical units No air gaps between the unit and truck wall Correct connection of the drain hoses Correct installation of the diesel fuel pump Correct connection...

Страница 45: ...version 1 Defrosting line 11 Dehydrating filter 2 Suction line 12 Liquid receiver 3 Liquid line 13 Condenser 4 Three ways valve 14 Suction valve 5 High pressure switch 15 Discharge valve 6 Condenser f...

Страница 46: ...ceiver 2 Suction line 13 Condenser 3 Liquid line 14 Suction valve 4 Three ways valve 15 Discharge valve 5 High pressure switch 16 Stand by compressor 6 Condenser fan pressure switch 17 Oil separator 7...

Страница 47: ...Refrigeration unit Series Uno Undermount UN120 UN120 Multi INSTALLATION MANUAL rev 02 47 4 3 Wiring diagram single temperature version...

Страница 48: ...INSTALLATION MANUAL Refrigeration unit Series Uno Undermount UN120 UN120 Multi 48 rev 02 4 3 1 Power board...

Страница 49: ...Refrigeration unit Series Uno Undermount UN120 UN120 Multi INSTALLATION MANUAL rev 02 49 4 3 2 Electronic board...

Страница 50: ...INSTALLATION MANUAL Refrigeration unit Series Uno Undermount UN120 UN120 Multi 50 rev 02 4 3 3 Emergency circuit...

Страница 51: ...IR FILTER FA11 GLOW PLUG FUSE FA2 CLUTCH FUSE FA3 OIL PUMP FUSE FA4 DIESEL FUEL STOP SOLENOID VALVE FUSE 0 FA5 DEFROST SOLENOID VALVE FUSE FA6 HIGH SPEED SOLENOID FUSE FA7 START MOTOR REEL FUSE FA8 AU...

Страница 52: ...N M8 9 10 MVE1 2 3 EVAPORATOR FANS MOTOR MP DOOR MICROSWITCH MTA START MOTOR P1MX CONDENSER FAN PRESSURE SWITCH BDC LOW PRESSURE SWITCH PMX HIGH PRESSURE SWITCH PN DIESEL FUEL PUMP PO OIL PRESSURE SWI...

Страница 53: ...Refrigeration unit Series Uno Undermount UN120 UN120 Multi INSTALLATION MANUAL rev 02 53 4 4 Wiring diagram multi temperature version...

Страница 54: ...INSTALLATION MANUAL Refrigeration unit Series Uno Undermount UN120 UN120 Multi 54 rev 02 4 4 1 Power board...

Страница 55: ...Refrigeration unit Series Uno Undermount UN120 UN120 Multi INSTALLATION MANUAL rev 02 55 4 4 2 Multi temperature board...

Страница 56: ...INSTALLATION MANUAL Refrigeration unit Series Uno Undermount UN120 UN120 Multi 56 rev 02 4 4 3 Electronic board...

Страница 57: ...Refrigeration unit Series Uno Undermount UN120 UN120 Multi INSTALLATION MANUAL rev 02 57 4 4 4 Second evaporator control circuit...

Страница 58: ...STOP SOLENOID VALVE FUSE 0 FA5 DEFROST SOLENOID VALVE FUSE FA6 HIGH SPEED SOLENOID FUSE FA7 START MOTOR REEL FUSE FA8 AUXILIARY CIRCUIT FUSE FA11 GLOW PLUG FUSE FB BATTERY FUSE FEC DIESEL FUEL HEATER...

Страница 59: ...DOOR MICROSWITCH MTA START MOTOR BDC LOW PRESSURE SWITCH PMX HIGH PRESSURE SWITCH PN DIESEL FUEL PUMP PO OIL PRESSURE SWITCH S2 REMOTE ON OFF SA AIR SWITCH Y3V THREE WAY SOLENOID VALVE YAV HIGH SPEED...

Страница 60: ...Zanotti S p A M L King 30 46020 Pegognaga MN Italy Tax Code VAT No 0185670203 T 39 0376 5551 F 39 0376 536554 info zanotti com www zanotti com...

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