Digitus DN-97332, User Manual

Page 1: ...Split Rack Cooling Unit User Manual DN 97332 3 9 kW DN 97333 7 2 kW DN 97334 12 kW...

Page 2: ...2 Unpacking Inspection 12 3 3 Installation 12 3 3 1 Outdoor Installation 12 3 3 2 Indoor Installation 15 4 Commissioning 16 4 1 Leak Pressure and Vacuum 16 4 2 Add The Amount Of Lubricating Oil 17 4 3...

Page 3: ...lectric shock resulting in injury to persons in the Danger or Warning safety label This is a safety alert symbol used to alert to potential personal injury hazards Follow all safety information with t...

Page 4: ...follow safe electrical work practices This equipment must be installed and serviced by qualified personnel only Turn off all power supplying this equipment before working on or inside the equipment Al...

Page 5: ...uneven surfaces or door thresholds Lower leveling feet to floor when this equipment is at rest Lower leveling feet and attach joining brackets to adjacent racks when this equipment is in final positio...

Page 6: ...as compressed at room temperature to a temperature high pressure refrigerant gas increasing its temperature of condensation into the condenser outdoor unit is condensed to a liquid The key is the core...

Page 7: ...tion the alarm is transmitted to the controller Fan means for driving an air flow through the air conditioning cycle Filter for filtering dust in the air impurity individual air conditioning is standa...

Page 8: ...nting feet 2 2 Size Table 2 1 Indoor unit size Product number Width mm Depth mm Height mm DN 97332 483 686 266 DN 97333 483 686 443 DN 97334 483 686 532 Table 2 2 Outdoor unit size Product number Widt...

Page 9: ...Humidity 5 RH 95 RH non condensing Duration A total of not more than six months more than six months to be re calibrated performance 3 Installation 3 1 Installation Preparation Tools to prepare Wrench...

Page 10: ...on Prevent high temperature and humidity dust outdoor air into the acid Installation position and stay close to the obstacle distance of at least 500 mm If the outdoor unit installed on the ground the...

Page 11: ...densate drain of indoor unit shall piping with particular angel exhaust pipe angle 0 3 6 When installed in negative gap condenser liquid pipe shall piping with particular angel gas pipe angle 0 3 Figu...

Page 12: ...expansion bolts fixed to the base Piping Installation Piping principle 1 The use of copper pipe connection between the indoor unit and outdoor unit 3 9 kW 7 2 kW 12 kW which an indoor unit and an outd...

Page 13: ...peration please read the following precautions 1 Remove the dust cover of the valve connector 2 Carefully wipe with a clean cloth and the connecting base flanks 3 Refrigerating oil lubricated surface...

Page 14: ...ding process should pass the 0 03MPaNitrogen protected 5 When the pipeline and welding the ball valve it should pack a damp cloth to cool ball to prevent heat damage 6 The refrigerant tube support is...

Page 15: ...perating current of the unit check the unit nameplate Cable size should meet the electrical requirements 3 The need to connect a cable is indoor power line the power line of the outdoor unit 4 Main po...

Page 16: ...be slight changes in pressure such as the temperature difference is 3 Pressure changes 1 should be normal if the pressure change value is exceeded then the leak should be found to re welding pressure...

Page 17: ...he addition amount of the refrigerant kg m 9 52 0 060 12 7 0 112 16 0 181 19 0 261 22 0 362 28 0 618 4 2 Add The Amount Of Lubricating Oil When the union sufficiently long the compressor discharge air...

Page 18: ...e inspection system in Table 4 3 Table 4 3 Check before starting the unit Project Check the contents and requirements The whole appearance No damage to the appearance clean surface intact insulation F...

Page 19: ...Compressor rotation is correct recording its operating voltage current Fan speed controller Recording speed controller output voltage Heater Heater current record Humidifier Humidifier recording curr...

Page 20: ...up operation by professional engineers to complete 5 Maintenance 5 1 Daily Operations In the daily management of the engine room the air conditioning for precision management and maintenance mainly re...

Page 21: ...n Check if the indoor unit loosening 5 2 Common Fault Alarm Phenomenon and Measures Failure mainly for the precision air conditioning units cooling system failure control system failure the ventilatio...

Page 22: ...on valve The expansion valve bulb failure or incorrect mounting position An expansion valve replacement and proper installation position bulb Summer too much refrigerant perfusion Remove excess refrig...

Page 23: ...rigerant in the system Tim refrigerant charge control in the low voltage 0 9 1 Between Mpa Filter clogging dried Replacing the filter was dried Evaporator frosting Respond to the evaporator to defrost...

Page 24: ...room sealed situation the venue for unusual circumstances No high humidity heat load Increased thermal load Low humidity alarm Humidity limit set unreasonable Reset Device is not configured humidifier...

Page 25: ...gs Home menu alarm boot Menu options click the corresponding option to enter the corresponding menu page The home page option currently displays the embedded background mode representing the current p...

Page 26: ...ge at other page point menu I O Click to enter the input output page including all digital input output information and analog quantity input and output information User Settings click to enter the us...

Page 27: ...all alarms that exist in the current unit Trigger date the exact date of the alarm Trigger time The timing of the alarm Alarm content Warning Return The return key is returned to the previous page Ne...

Page 28: ...e the current crew serial number Alarm number date The exact date of the alarm time The timing of the alarm alarm content Alarm content return The return key is returned to the previous page next page...

Page 29: ...e device is blue the device is in the output state and the device is in a non output state when the color is gray When the port input state is blue the port is entered into a closed state and when the...

Page 30: ...on input and output values temperature and humidity curve Click to enter the temperature and humidity curve interface pressure curve Click into the pressure curve interface return The return key is re...

Page 31: ...31 Temperature humidity curve Figure 6 7 temperature humidity curve Pressure curve Figure 6 8 pressure curve...

Page 32: ...32 User Settings Figure 6 9 Enter password Enter password 4321 Enter the Settings page Figure 6 10 User...

Page 33: ...the change password page and change the user password Basic Setting Figure 6 11 Basic setting Temp Setting 0 0 C Set the temperature setting value that is the expected indoor temperature Humid Settin...

Page 34: ...Heat off band 0 0 C Set the heat closing deviation that is to meet the basic conditions of thermal shutdown after the temperature deviation Control mode return air The temperature control is based on...

Page 35: ...emperature is lower than the low temperature alarm set value and then the alarm Click the number to set high humidity alarm value 0 0 The high humidity alarm value the return air humidity exceeds the...

Page 36: ...re 6 14 User change password user password Settings click the text box to change the password User password confirmation Figure 6 15 User password confirmation password confirmation can be changed aft...

Page 37: ...aration of Conformity is part of the shipping content If the Declaration of Conformity is missing you can request it by post under the below mentioned manufacturer address www assmann com Assmann Elec...