Lennox THS310 Installation, Operating And Maintenance Manual Download Page 2 | Manualshive

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Summary of Contents for THS310

Page 1: ...www lennoxemea com INSTALLATION OPERATING AND MAINTENANCE CEILING MOUNTED SPLIT UNIT DNOVA THS 2 5 38 kW ADNOVA THS_R410A IOM 1304 E...

Page 2: ......

Page 3: ...of the unit 10 4 3 Evacuating a circuit contaminated with refrigerant 11 4 4 Charging positions single point 11 5 Electrical Connections 12 5 1 Generalities 12 6 Starting Up 14 6 1 Preliminary checks...

Page 4: ...7 0 C 45 0 C 44 0 C 45 C 47 C Temp Humidity conditions Min 19 C 30 R H Max 35 C 50 R H Storage conditions Min 10 C 90 R H Max 55 C 90 R H 1 3 Cooling circuit The entire cooling circuit is built in the...

Page 5: ...m Alarm signalling Display of operating parameters RS232 RS485 serial output management optional Phase sequence error Not displayed by the mP but prevents the compressor from starting up See microproc...

Page 6: ...P 4 Evaporator 9 Condensing pressure probe 5 Filter dryer 10 Tap THS045 056 073 090 105 120 145 310 380 Pos Description Pos Description 1 Compressor 8 High pressure switch HP 2 Condenser 9 Condensing...

Page 7: ...of electrical components may cause hazardous situations during installation and maintenance work All work on the unit must be carried out by qualified personnel only trained to do their job in accord...

Page 8: ...taken to avoid abrupt or violent maneuvers The unit must be handled carefully and gently avoid using machine components as anchorages or holds and always keep it in an upright position The unit should...

Page 9: ...when choosing the best site for installing the unit and the relative connections position of the indoor unit next to the main heat source location of power supply solidity of the supporting ceiling wa...

Page 10: ...lows In both cases the holes in the ceiling wall have to be protected by rainproof grilles with pre filter to avoid water or foreign bodies get in the conditioner Outside air taken into the room by th...

Page 11: ...number of pre shaped bends if this is not possible every bend must have a radius of at least 100mm The gas line must be insulated The liquid line must be kept far from heat sources if this is not poss...

Page 12: ...with ambient air further evaporation of remaining liquid the original pressure in the tank will be restored after a certain period of time Fig 3 Gibb s law diagram 4 2 Full vacuum and charge of the u...

Page 13: ...d this sensitive sensor and misinterpret the value for a certain period of time For this reason if no machine for recovering refrigerant is available it is nonetheless advisable to switch on the crank...

Page 14: ...luctuations exceeding 5 and the unbalance between phases must always be below 2 The above operating conditions must always be complied with failure to ensure said conditions will result in the immedia...

Page 15: ...DNOVA THS_R410A IOM 1304 E 13 Legend 1 Power supply for internal unit THSI 2 Power supply for external unit THSC 3 Auxiliary cables MAIN ELECTRICAL PANEL 2 1 3...

Page 16: ...n the sump and limit the quantity of refrigerant dissolved in it To verify whether the heating elements are working properly check the lower part of the compressors it should be warm or in any case at...

Page 17: ...ors In next mask m_on_off that you can see pushing Down it is possibile to turn the unit on or off pushing Enter Down and then again Enter It is also shown if the unit is a master or a slave unit this...

Page 18: ...eter placed on the compressor intake pipe 2 read the temperature indicated on the scale of a pressure gauge likewise connected to the intake side refer to the pressure gauge scale for the refrigerant...

Page 19: ...50 30 Differential air pressure switch dirty filter Pa 50 20 Values to be calibrated depending on the application Tab 5 Setting of safety control devices Control device Activation Differential Resetti...

Page 20: ...ng the units and secure them with the fastening screws provided 8 2 Periodical checks To guarantee a constantly satisfactory performance over time it is advisable to carry out routine maintenance and...

Page 21: ...nd air filter compartment Remove the damper fastening screws placed at the side Pull out the entire damper section to access the servomotor Grilled panel Servomotor Remove the grilled panel to access...

Page 22: ...st empty out the circuit before repairing the leaks with suitable alloys Do not use oxygen in the place of nitrogen as a test agent since this would cause a risk of explosion 8 5 Hard vacuum and dryin...

Page 23: ...arged with nitrogen in the factory must not be charged with R22 or other refrigerants without the written authorization Lennox 8 7 Environmental protection The law implementing the regulations reg EEC...

Page 24: ...cooling values exceeding 5 C Drain and pressurise the circuit and check for leaks Evacuate slowly for more than 3 hours until reaching a pressure of 0 1 Pa and then recharge in the liquid phase Unit...

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Page 26: ...LENNOX DISTRIBUTION 33 4 72 23 20 20 www lennoxemea com ADNOVA THS_R410A IOM 1304 E Due to LENNOX EMEA ongoing commitment to quality the specifications ratings and dimensions are subject to change wit...

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