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0-UC 13-FEB 18-2 

 

Page 10 

 

During Installation and subsequent maintenance 

 

Installation and maintenance are to be performed only by qualified personnel who are familiar with 
local codes and regulations, and experienced with this type of equipment. 

 

If lifting equipment is required, ensure that it is suitable for purpose, certificated and that the operatives 
are qualified to use it. 

 

Safe working methods are identified and operatives have suitable PPE. 

 

Ensure the working area has adequate ventilation during brazing procedures.  

 

The units contain moving machinery and electrical power hazards, which may cause severe injury or 
death. Disconnect and shut off power before installation or service of the equipment. 

 

Refrigerant release into the atmosphere is illegal. Proper evacuation, recovery, handling and leak testing 
procedures must be observed at all times. 

 

Units must be earthed and no maintenance work should be attempted prior to disconnecting the 
electrical supply. 

 

The electrical covers and fan guards must remain fitted at all times. 

 

Use of the units outside of the design conditions and the application for which the units were intended 
may be unsafe and be detrimental to the units, regardless of short or long-term operation. 

 

The units are not designed to withstand loads or stresses from other equipment or personnel. Such 
extraneous loads or stress may cause failure/leak/injury.

 

 
 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for LFMNS0150AXV1

Page 1: ...COMMERCIAL REFRIGERATION UNIT COOLER MEDIUM LOW TEMPERATURE OPERATING AND INSTALLATION MANUAL ...

Page 2: ...9 3 Specification 3 1 General 11 3 2 Capacity Table 13 4 Unit location and Mounting 4 1 Unit Location 14 4 2 Mounting 14 5 Piping Installation 5 1 Refrigerant Piping 15 5 2 Evacuation and Leak test 15 5 3 Drain Pipe 15 5 4 Superheat 15 6 Electrical 6 1 Field Wiring 16 6 2 Earth Wiring 16 6 3 Wiring Diagram 17 7 Start up 7 1 Pre start up 19 7 2 Operation checkout 19 8 Preventative Maintenance 19 9 ...

Page 3: ...erature with heater Unit Category R Outdoor unit F Indoor unit Type of product M Medium temperature application L Low temperature application 1 2 Product features Can be used with refrigerants R404A R134a and R410A DX evaporator coil with shredder valve integrated into suction line for ease of superheat measurement Powder coated galvanized casing IP44 Axial fan with moisture proof protected and bu...

Page 4: ...8 2 Page 4 1 3 Unit Dimension Model LFMNS0150AXV1 LFMNS0400AXV1 LFLHS0150AXV1 LFLHS0200AXV1 Model LFMNS0600AXV1 LFMNS0800AXV1 LFLHS0320AXV1 LFLHS0400AXV1 Model LFMNS0980AXV1 LFMNS1400AXV1 LFLHS0480AXV1 LFLHS0600AXV1 ...

Page 5: ...0 UC 13 FEB 18 2 Page 5 1 4 Exploded View Medium Temperature Application LFMNS0150AXV1 LFMNS0400AXV1 LFMNS0600AXV1 LFMNS0800AXV1 ...

Page 6: ...EB 18 2 Page 6 1 FAN 3 EVAPORATOR COIL 4 DRAIN PAN 5 PANEL TOP 7 PANEL SIDE 8 PANEL RIGHT 9 PANEL LEFT 10 HANGER 12 ADAPTOR 13 DRAIN PAN FITTING 14 CONTROL BOX COVER 15 TERMINAL BLOCK LFMNS0980AXV1 LFMNS1400AXV1 ...

Page 7: ...0 UC 13 FEB 18 2 Page 7 Low Temperature Application LFLHS0150AXV1 LFLHS0200AXV1 LFLHS0320AXV1 LFLHS0400AXV1 ...

Page 8: ...EFROST HEATER 3 EVAPORATOR COIL 4 DRAIN PAN 5 PANEL TOP 6 PANEL FRONT 7 PANEL SIDE 8 PANEL RIGHT 9 PANEL LEFT 10 HANGER 11 HEATER CLAMP 12 ADAPTOR 13 DRAIN PAN FITTING 14 CONTROL BOX COVER 15 TERMINAL BLOCK LFLHS0480AXV1 LFLHS0600AXV1 ...

Page 9: ...e caused by incorrect application or unit mis handling 2 Health and Safety 2 1 General information Before Installation Ensure the units received are the correct models for the intended application Ensure the refrigerant voltage and MWP are all suitable for the proposed application Check there is no damage to the units Any damage should be advised to the supplier immediately Check that the proposed...

Page 10: ...hich may cause severe injury or death Disconnect and shut off power before installation or service of the equipment Refrigerant release into the atmosphere is illegal Proper evacuation recovery handling and leak testing procedures must be observed at all times Units must be earthed and no maintenance work should be attempted prior to disconnecting the electrical supply The electrical covers and fa...

Page 11: ...1Ph 50Hz Max operating pressure Bar 25 25 25 25 25 25 Evaporator Fin spacing FPI 6 6 6 6 6 6 Coil Rows 6 8 6 8 6 8 Fan Fan Size mm x Qty 315 x 1 315 x 1 315 x 2 315 x 2 315 x 3 315 x 3 Air Flow m3 h 1600 1500 3200 3100 4800 4700 Fan Speed rpm 1350 1350 1350 1350 1350 1350 Running current A 0 41 0 41 0 82 0 82 1 23 1 23 Power Consumptions W 92 92 184 184 276 276 Finishing Casing Galvanized Steel GI...

Page 12: ...ing FPI 5 5 5 5 5 5 Coil Rows 6 8 6 8 6 8 Fan Fan Size mm x Qty 315 x 1 315 x 1 315 x 2 315 x 2 315 x 3 315 x 3 Air Flow m3 h 1600 1500 3200 3100 4800 4700 Fan Speed rpm 1350 1350 1350 1350 1350 1350 Running current A 0 41 0 41 0 82 0 82 1 23 1 23 Power Consumptions W 92 92 184 184 276 276 Heater Qty 3 3 3 3 3 3 Power Consumptions unit W 450 450 900 900 1350 1350 Finishing Casing Galvanized Steel ...

Page 13: ...T1 Air inlet temperature Ta Evaporating temperature at the outlet Te TD CORRECTION FACTOR Capacity at different TD can be calculated using the correction factor given in below table TD K 4 5 5 0 5 5 6 0 6 5 7 0 7 5 8 0 8 5 9 0 9 5 10 0 Correction Factor 0 56 0 63 0 69 0 75 0 81 0 88 0 94 1 00 1 06 1 13 1 19 1 25 b Low Temperature Refrigerant R404A Model Te 40 35 30 25 20 LFLHS0150AXV1 0 81 1 04 1 ...

Page 14: ...r is open Light fixtures shelving and product boxes must be located in a manner whereby they do not block the air intake and air discharge from the unit cooler Side clearance should be reserved so that service work can be carried out IMPORTANT The coil face must be located a minimum of 0 6xH from walls to assure unrestricted air intake 4 2 Mounting Daikin unit coolers come with mounting holes that...

Page 15: ...or the leak test and vacuum test information 5 3 Drain pipe Installing a trap is required for trouble free operation If unit cooler is operated without the drain trap warm air with higher temperature will draw from outside to the cold room Thus warm air will significantly reduce the cooler capacity and may lead to ice formation in the drain pan If the temperature surrounding the drain line and tra...

Page 16: ...is located on the inside of the panel door of the control box The unit must be grounded Model Heater Removal Length mm LFMNS0150AXV1 LFMNS0400AXV1 LFLHS0150AXV1 LFLHS0200AXV1 800 LFMNS0600AXV1 LFMNS0800AXV1 LFLHS0320AXV1 LFLHS0400AXV1 1350 LFMNS0980AXV1 LFMNS1400AXV1 LFLHS0480AXV1 LFLHS0600AXV1 1750 The diagram and table above showed the required length to reserve for heater removal and access to ...

Page 17: ...cting the electrical supply Installation of earth wire should be made to earth screw before connecting the live wires The earth wire shall be slacked with longer length as shown in below diagram WARNING Please check electrical safety leakage current withstand voltage earth continuity after connected to heaters fuse and timers ...

Page 18: ...B 18 2 Page 18 6 3 Wiring Diagram a LFMNS0150AXV1 LFMNS0400AXV1 LFLHS0150AXV1 LFLHS0200AXV1 b LFMNS0600AXV1 LFMNS0800AXV1 LFLHS0320AXV1 LFLHS0400AXV1 REMARK Heater is only provided for low temperature model only ...

Page 19: ...0 UC 13 FEB 18 2 Page 19 c LFMNS0980AXV1 LFMNS1400AXV1 LFLHS0480AXV1 LFLHS0600AXV1 ...

Page 20: ...ance schedule should be set up as soon as the Unit Cooler is installed The unit should be inspected periodically for proper operation and buildup of dirt 1 Inspect and clean the drain pan to ensure there is no blockage The drain pan should be cleaned regularly with warm water and neutral detergent 2 The cabinet fans and guards can be cleaned with water and neutral detergent Do not clean using wate...

Page 21: ... line with slope Check unit installation and align the unit level at all directions Install drain line trap Noise Resonance on the vibrating mounting parts Vibration of fan or fan mounting misaligned Fix the position of vibrating part correctly Fix the position of fan correctly replace if defective Room temperature too high not cold Room thermostat defect Insufficient or no refrigerant supply to e...

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