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Page 28
Electrical Data Compressors
Technical data
8.2 Unit Electrical Data
MQL/MQH 4 6 8M 8T
Rated voltage V/ph/Hz 230V-1-50Hz 400/3+N/50
Max. absorbed power kW 2.2 2.7 4.6 4.6
Rated current A 8.3 10.1 16.4 7.5
Max. current (FLA) A 9.7 11.7 20.7 8.6
Max. start-up current (LRA) A 38 53 77 37
External fuses (A) 16 16 25 16
Max. cable section (1) mm
2
2.5 2.5 4.0 2.5
(1) The dimensioning of the unit’s power cables is the responsibility of the installer, who shall consider: the rating, the maximum working tempera-
ture in the room, the type of insulation and the cable laying, the maximum length of the power supply line.
n.d. Not available.
MQL/MQH 10M 10T 12 15 17
Rated voltage V/ph/Hz 230V-1-50Hz 400/3+N/50
Max. absorbed power kW 5.6 5.4 6.3 7.3 8.3
Rated current A 19.7 9.6 11.2 11.7 13.5
Max. current (FLA) A 26.4 11.4 13 14.7 16.9
Max. start-up current (LRA) A 115 51 67 75 102
External fuses (A) n.d. n.d. n.d. n.d. n.d.
Max. cable section (1) mm
2
n.d. n.d. n.d. n.d. n.d.
Compressors MQL/MQH 4 6 8M 8T
Number n° 1111
Max. absorbed power kW 1,8 2,3 4,2 4,2
Nominal current A 6,6 8,4 14,7 5,8
Max. current (FLA) A 8 10 19 6,9
Max. start-up current (LRA) A 37 52 76 36
Oil pan resistor W – – 70 70
Compressors
MQL/MQH 10M 10T 12 15 17
Number n° 11111
Max. absorbed power kW 4,9 4,7 5,6 6,6 7,6
Nominal current A 16,3 6,2 7,8 8,3 10,1
Max. current (FLA) A 23 8 9,6 11,3 14
Max. start-up current (LRA) A 114 50 66 74 101
Oil pan resistor W 70 70 70 70 70
Manuale MQL-MQH 10.6.2005 12:26 Pagina 28
Содержание
- Mql mqh 4 17 1
- Dismantling demolition and scrapping 2
- English 2
- Foreword 2
- General description 2
- Installation 2
- Maintenance 2
- Minichiller control 2
- Safety 2
- Spare parts 2
- Start up 2
- Table of contents 2
- Technical data 2
- Transport lifting and positioning 2
- Troubleshooting 2
- An introduction to the manual 3
- Emergency stop normal stop 3
- Foreword 3
- Introduction 3
- Warranty 3
- Definitions 4
- English 4
- Foreword 4
- Safety 4
- Access to the unit 5
- General precautions 5
- Precautions against residual risks 5
- Safety 5
- English 6
- Precautions during maintenance operations 6
- Safety 6
- Aus outlet 7
- Ein inlet 7
- Entrée entrata 7
- Safety 7
- Safety labels 7
- Sortie uscita 7
- English 8
- Safety 8
- Safety regulations 8
- Safety 9
- English 10
- Safety 10
- Anchoring 11
- Inspection 11
- Storage 11
- Transport lifting and positioning 11
- Unit handling 11
- English 12
- Installation 12
- Installation advices 12
- Fixing dimensions 13
- Installation 13
- Maintenance access 13
- English 14
- Installation 14
- Safety differential pressure switch 14
- Water connections 14
- Water piping 14
- Draining the defrosting waste water for heat pump unit only 15
- Hydraulic connection 15
- If the terminal unit is on a lower level than the mql mqh water chiller make sure the water pressure in the chiller is at least 0 bar 15
- Installation 15
- Page 14 15
- Pressure drop in tubes and accessories 15
- Principle diagram of water circuit 15
- Tabella n 2 15
- Table n 1 15
- The grey area shows pressure drop in mm of water gauge m and the velocity in m s recommended for various flows and diameters intermediate values are determined through interpo lation values outside the grey area correspond to exces sive pressure drops and should be avoided table n 2 shows the equivalent length pipe with the same diameter of a few common accessories for this type of installation 15
- The heat pump units must be installed in positions where the defrosting water cannot create any dam age 15
- The mql mqh are to be connected with the termi nal units such as fan coil units cassettes or wall mounted units each terminal unit connected with the mql mqh water chiller and provided with its own control is therefore completely independent of the chiller see diagram of principle on the left 15
- The water inlet outlet fittings shall conform to the in structions provided by the plates affixed neat the connection points 15
- To determine the appropriated pipe section see table n 1 which shows the values of pressure drop for various water flows and the diameter of stan dard copper pipes for hydraulic installations 15
- When heat pump units work in heating mode dur ing defrosting cycles they may discharge water from the base 15
- Electrical connections 16
- English 16
- Installation 16
- Power supply 16
- Preliminary check 17
- Start up 17
- Checking the operation 18
- Delivery to the customer 18
- English 18
- Start up 18
- Before start up 19
- Control system 19
- Minichiller control 19
- Operating instructions 19
- Starting and using the unit 19
- Alarms table 20
- An anomalous noise in the compressor 20
- Control system 20
- English 20
- Failure diagnostics 20
- If the unit is powered by 3 phase current it is essential that the compressor turns in the correct direction the direction of rotation of scroll compressors is fixed the direction of rotation is wrong when while the unit is working you can feel 20
- If you exchange the connections of two out of three phases the compressor inverts the direc tion of rotation and these phenomena disappear suddenly 20
- In case of summer winter switching through re mote contact the unit will operate in cool ing mode when this contact is closed and in heating mode when it is open 20
- Meaning possible cause corrective action 20
- The lack of the correct differential between dis charge pressure and suction pressure i e if the discharge pressure is just above the suc tion pressure 20
- General description 21
- General specifications 21
- Introduction 21
- Air exchanger 22
- Compressors 22
- Coolant circuit 22
- English 22
- General description 22
- Water exchanger 22
- General description 23
- Outline refrigerator mqh hp 4 8 23
- Outline refrigerator mql 10 17 23
- Page 22 23
- English 24
- General description 24
- Outline refrigerator mqh 10 17 24
- Page 23 24
- Page 24 25
- Technical data 25
- English 26
- Page 25 26
- Technical data 26
- Page 26 27
- Technical data 27
- English 28
- Page 27 28
- Technical data 28
- Electrical data compressors 29
- Page 28 29
- Technical data 29
- Unit electrical data 29
- English 30
- Fans electrical data 30
- Page 29 30
- Technical data 30
- Mql mqh 10 17 31
- Mql mqh 4 8 31
- Overall dimensions 31
- Page 30 31
- Technical data 31
- Clearences 32
- English 32
- Technical data 32
- General requirements 33
- Maintenance 33
- Planned maintenance 33
- Compressor 34
- Condenser 34
- Dehydrating filter 34
- English 34
- Maintenance 34
- Refrigerant charge 34
- Evaporator 35
- Maintenance 35
- Thermostatic expansion valve only mql mqh 4 8 35
- English 36
- Troubleshooting 36
- Troubleshooting 37
- English 38
- Oil for compressors 38
- Spare part list 38
- Spare parts 38
- Wiring diagrams 38
- Dismantling demolition and scrapping 39
- Generalities 39
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