MHG Heating ThermSelect Assembly, Commissioning And Maintenance Instructions Download Page 19

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ThermSelect®

4. General

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Service water sensor QAZ 36
94.19314-5013 (2 m)
94.19314-5012 (6 m)

Service water sensor QAZ 36 for recording the hot water storage
temperature for Boiler Management Unit LMU and RVS with con-
nection cable 2x0.5 mm², NTC 10 kOhm, 10000 Ohm at 25°C.

Collector sensor QAZ 36.481/101
94.19314-5018 (1.5 m)

For RVS or LMU

Additional heater 6.0 kW
98.38400-6302

Additional electric heater 6.0 kW (3 x 2 kW, 400 V) incl. contactor
and connection cable set for controller RVS 61.843

Reservoir

Heat pumps require special reservoirs. MHG carries all required
special high-capacity buffer and zone reservoirs in its program.

Summary of Contents for ThermSelect

Page 1: ...ThermSelect As of 9 March 2011...

Page 2: ...4 Handling of packaging material 15 3 5 Disposal of packaging 16 3 6 Disposal of the device 16 4 General 17 4 1 Product description 17 4 2 What is included 18 4 3 Accessories 18 5 Technical data 20 5...

Page 3: ...ioning record 66 8 Maintenance 67 8 1 Maintenance 67 8 2 Components relevant to safety 68 8 3 Work to be carried out 68 8 4 Spare part drawing and legend 72 9 Troubleshooting 73 9 1 Troubleshooting 73...

Page 4: ...orking on the device The information contained in this document is accurate and up to date to the best of our knowledge at the time of writing The information provided serves as a reference for the sa...

Page 5: ...ructions for Assembly Startup and Maintenance as well as the operating instructions In compliance with the necessary maintenance activities In compliance with the technologically required minimum and...

Page 6: ...ies and property damages DANGER indicates life threatening situations due to electric current WARNING indicates a possibly hazardous situation which can lead to death or serious injuries if not avoide...

Page 7: ...quipment in particu lar he must receive the operating instructions for the device He is responsible for the proper operation of the system and must en sure that it is regularly serviced by a specialis...

Page 8: ...ious inju ries Therefore Work on electrical systems may only be performed by professional electricians Turn off electric power before beginning the work activities and secure against being turned on a...

Page 9: ...xygen Therefore Exercise special caution when entering lower lying closed rooms Work on the refrigerant circulation may only be per formed by persons possessing a refrigeration cer tificate in accorda...

Page 10: ...perating safety of the device Opening and or repairing original parts e g drive controller WARNING Risk to life and damage to the environment through refrigerant leakage The operating permit becomes v...

Page 11: ...Technical rules for drinking water installations TRWI DIN 4726 01 2001 Plastic pipes for warm water floor heating DIN 4753 03 1988 Water heaters and water heating systems for drinking and service wat...

Page 12: ...ting systems VDE Stipulations and special require ments of the public utility companies Additional Standards Regulations for Austria In Austria the local building regulations as well as the VGW regu l...

Page 13: ...GW Swiss association of gas and water technologies SEV Swiss association for electrical energy and in formation technology SWKI Swiss Association of Heating and Air Condition ing Engineers Geb ude Kli...

Page 14: ...nly shortly before assem bly CAUTION Device damage through improper handling The machine oil shifts Therefore The heat pump may only be transported standing and never horizontally The heat pump may on...

Page 15: ...Report each defect as soon as it is detected Damage compensation claims can only be asserted within the respective claim periods 3 3 Notes on storage The shaft of the circulation pump may seize durin...

Page 16: ...roper disposal of hazardous waste is required End of life devices must be taken to the respective public collection point for proper disposal Disposal must be in accordance with current local laws and...

Page 17: ...ump hybrid system in a compact design with 2 integrated weather controlled heat pump controllers Size width x depth x height Version 1 690x600x900 Version 2 1 030x730x900 Quiet running through sound d...

Page 18: ...the RVS control ler mode reserve for time greater than 12 hours Control unit QAA 78 94 88147 5021 Radio linked control unit optionally usable as a control unit service device or room device Setting of...

Page 19: ...on nection cable 2x0 5 mm NTC 10 kOhm 10000 Ohm at 25 C Collector sensor QAZ 36 481 101 94 19314 5018 1 5 m For RVS or LMU Additional heater 6 0 kW 98 38400 6302 Additional electric heater 6 0 kW 3 x...

Page 20: ...ions at rear wall of heat pump Sk09 6200 023_a Stand 06 11 09 Fig 1 Connections at rear wall of heat pump ThermSelect 15 Version 1 schematic diagram The device illustrated does not cor respond to the...

Page 21: ...in distance to walls and obstacles 500 mm EAL Electrical connection of fan split evaporator 3x0 75 mm supply line 0 10 V signal 2x0 75 mm FA Foundation Take note of the following information KB Gravel...

Page 22: ...5 Technical Data ThermSelect 22 100 5 2 Identification plate Fig 4 Sample identification plate...

Page 23: ...7 Output A2 W35 8 Output B0 W35 9 Output W10 W35 10 Output W7 W35 11 Rated thermal output 12 max positive operating pressure 13 max flow temperature 14 Pressure limiter 15 Electric connection 16 Powe...

Page 24: ...rcuit breaker slow C characteristic A 3x25 3x32 3x40 3x63 Recommended wire gauge mm 3x4 0 3x6 0 3x10 0 Electric connection Compressor control current 3NPE 400 V 1NPE 230 V Protection class heat pump a...

Page 25: ...ThermSelect 5 Technical Data 25 100...

Page 26: ...5 Ex7 K1 N PE Q3 N PE Y2 N PE N PE PE Qx2 N PE Qx3 N PE Qx4 Qx5 N PE Y1 N Q9 Qx1 N E11 Q8 K19 Q2 Ex6 PE Qx6 M UX M Bx5 M Bx4 M Bx3 M Bx2 M Bx1 M B84 M B91 M B71 M B1 M B21 M B9 M B92 B3 M B81 H3 M H1...

Page 27: ...rigerant circulation heating normally closed A1 Relay coil L N N1 Neutral lead A2 Relay coil N ND Pressure switch low pressure AF Outdoor temperature sensor NOT Control switch or emergency switch if r...

Page 28: ...Q3 N PE Y2 N PE N PE PE Qx2 N PE Qx3 N PE Qx4 Qx5 N PE Y1 N Q9 Qx1 N E11 Q8 K19 Q2 Ex6 PE Qx6 M UX M Bx5 M Bx4 M Bx3 M Bx2 M Bx1 M B84 M B91 M B71 M B1 M B21 M B9 M B92 B3 M B81 H3 M H1 CL G CL CL CL...

Page 29: ...culation heating normally closed N N1 Neutral lead A1 Relay coil L ND Pressure switch low pressure A2 Relay coil N NOT Control switch or emergency switch if required AF Outdoor temperature sensor AVS...

Page 30: ...mperature sensor 42 2 B21 Sensor air heat pump flow 42 3 B71 Sensor air heat pump return 42 4 B21 Sensor brine heat pump flow 42 5 B71 Sensor brine heat pump return 42 6 Bx1 Sensor track flow B10 48 0...

Page 31: ...ThermSelect 5 Technical Data 31 100...

Page 32: ...e MFE1 plug y terminals M BX5 BW Service water sensor plug k terminals M B3 MFE A Multifunctional input A e g external heat pump block low tariff over load compressor overload source pressure controll...

Page 33: ...ons see MFA1 plug Z terminal QX5 N RG1 Room device 1 plug b terminals G CL CL MFA6 Multifunctional output 6 functions see MFA1 plug Z terminal QX6 N RG2 Room device 2 plug b terminals CL CL RLWP Retur...

Page 34: ...area DC 0 10 V internal resistance 100 k Line inputs EX1 EX7 E9 E11 AC 230 V 10 Internal resistance 100 k Sensor input B9 Sensor inputs B1 B3 B4 B21 B41 B71 B81 B82 B91 and B92 Sensor inputs BX1 BX5...

Page 35: ...400 m Max cable capacity 60 nF 0 5 mm2 LPB with controller bus feed per controller with central bus feed bus load figure Cu cable 1 5 mm2 2 wire not interchangeable 250 m 460 m E 3 Standards safety E...

Page 36: ...ed by professional electricians Turn off electric power before beginning the work activities and secure against being turned on again 6 2 Requirements on the erection location of the heat pump Before...

Page 37: ...ure borne sound The acoustics in the erection rooms with reverberating walls can increase the operating sound significantly Countermeasure acoustic insulation on one of the opposite wall or ceiling su...

Page 38: ...le for a long period of time Therefore With this version it is compulsory to exclusively operate the brine evaporator in parallel with the air evaporator A changeover to alternative mode i e exclusive...

Page 39: ...eld of heating installations cooling installa tion technology and water systems installations 6 4 Installation information CAUTION Environmental damage through substances hazard ous to groundwater Sub...

Page 40: ...NOTE in case of emergencies ring the telephone number below 44 0 208 762 83 22 CareChem 24 Europe WARNING Danger to life through lack of oxygen Vapours of the refrigerants R 407 C are heavier than ai...

Page 41: ...need to be passed through the pipe in order to prevent scale formation Scale and other contamination impair the proper operation and lead to faults Split evaporator assembly PRECAUTION Risk of injury...

Page 42: ...split evaporator must be agreed upon with MHG Long line paths extend the duration of thawing and are to be avoided The lines are insulated with diffusion proof material The gaps of the insulation mus...

Page 43: ...ticles get into the refrigerant line as these cause the destruction of the compres sor NOTE The heating pump contains refrigerant for a 15m max length cooling line Any shortening or lengthening of the...

Page 44: ...6 Assembly ThermSelect 44 100 Fig 9 Connections split evaporator Legend for Fig 9 Abbrev iation Meaning 1 Fluid line 2 Suction gas line 3 Hot gas line 4 Sensor cable heat source evaporation...

Page 45: ...ThermSelect 6 Assembly 45 100 Fig 10 Sensor cable heat source inlet 5...

Page 46: ...he foil packaging and install the heat pump according to the following steps Fig 11 Heating pump without enclosure Fig 12 Place the heat pump with the pallet next to the actual erection location Remov...

Page 47: ...nd can cause water damage Therefore The heat source lines are lined with diffusion resistant insulation which must not be damaged Installation related damage must be closed again in a diffusion resist...

Page 48: ...tool Take note of bending radius to avoid bending or breaking of pipes To avoid brittle or cracking pipes do not bend the pipes repeatedly In order to reduce loss of pressure and to ensure return of...

Page 49: ...gas line 3 Hot gas line Evacuate the suction liquid and hot gas lines To evacuate the devices connect to the Schrader valves s Fig 9 After the evacuation has been completed open the ball valves to al...

Page 50: ...To prevent corrosion damage in the heating system heating water in potable quality must be used under consideration of the require ments according to VDI guideline 2035 Preventing damage in warm wate...

Page 51: ...d 5 10 K at the heat drop must be maintained under normal operating conditions while observing the application limits This spread is nor mally achieved when the volume flows specified in the technical...

Page 52: ...s must be complied with The electrical connections must be inspected by a responsible technician before establishing the con nection with the line supply An external separator e g main switch must be...

Page 53: ...L Solenoid liquid line air N Solenoid liquid line brine N Solenoid hea ter N Solenoid thaw ing N 3 6 9 12 15 18 21 24 27 30 Condenser pump PE Ventilator PE Heat source pump PE Normal tariff PE Pressu...

Page 54: ...ectly on the motor protection switch L1 L2 L and for N and PE on the relevant terminal connectors on the top hat rail Fig 19 Special tariff connection Electrical connections for RVS con troller Compon...

Page 55: ...L3 L1 N PE 230V 50 60 Hz 1 R2 R1 2 0 10V PWM out RSA RSB RSA RSB GND 0 10V PWM 0 10V PWM 4 20mA 20V 10V GND OUT NO COM NC N L L1 L1 N PE 230V 50 60 Hz 1 R2 2 RSA RSB RSA RSB GND 0 10V PWM 0 10V PWM 4...

Page 56: ...6 Assembly ThermSelect 56 100 Enclosure assembly Fig 21 Snap the catches of the side panel of the enclosure into the rear panel Fig 22 Fix side panels on the rear panel of the enclosure...

Page 57: ...ThermSelect 6 Assembly 57 100 Fig 23 Insert the spring plates in the side enclosures Fig 24 Snap the front panel onto the catches of the side panel...

Page 58: ...6 Assembly ThermSelect 58 100 Fig 25 Screw the closing journals into the lid of the enclosure Fig 26 Position the lid Fig 27 Insert the bracket...

Page 59: ...ThermSelect 6 Assembly 59 100 Fig 28 Screw in the upper and lower wing nut of the bracket Fig 29 Reach through the openings of the brackets to remove the control unit and attach it from the outside...

Page 60: ...dance with regulations Auto reset with 5 min recovery 4 Frequency not in accor dance with regulations Auto reset with 5 min recovery 5 Rotor blocking status while ramping Auto reset with 5 min recover...

Page 61: ...100 Fig 31 Flashing sequence RSBT 4016 4025 4032 EV 1 Controller and control unit At this point MHG refers to the Assembly Operation Maintenance manual RVS 61 843 AVS 37 QAA 75 QAA 78 Part No 98 1880...

Page 62: ...tion has been correctly installed the polarity of the line connection is correct electrical voltage is applied the heating system and possibly existing reservoir are correctly filled and ventilated th...

Page 63: ...rant Refrigerant leakage damages the environment 100 24 000 times more than carbon dioxide CO2 Therefore Hermetically sealed systems that contain 6 kg of refrigerant or more must not exceed a leakage...

Page 64: ...igerant is determined during operation by mea suring and comparing the refrigerant condensation temperature and the heat pump flow temperature The heat pump compressor must be activated for min of 10...

Page 65: ...tion 6 Accept settings 7 Room comfort target value adjusting navigation and settings Symbol Display options Heating in constant mode day comfort mode Heating in constant mode night reduced mode Heatin...

Page 66: ...ration Maintenance manual RVS 61 843 AVS 37 QAA 75 QAA 78 Part No 98 18803 6105 The factory parameterisation is shown in the table on pages 90 95 It may need to be adapted to the local system conditio...

Page 67: ...fects encountered shall be repaired without delay NOTE Professional annual maintenance is stipulated ac cording to the warranty conditions of MHG Heiztech nik DANGER Risk to life through electrical cu...

Page 68: ...10 250 000 Pressure relief valves 10 n a 8 3 Work to be carried out PRECAUTION Risk of injury due to refrigerant Refrigerant is corrosive and causes cold burns upon contact with skin Therefore Wear ch...

Page 69: ...hnical personnel that carried out the maintenance work Document dates and results of all inspec tions Check cooling circulation Screw connections seals sight glass refrigerant regulation Check heating...

Page 70: ...n off when dismantling the control unit Fig 34 Insert a screw driver as per the illustration first into the right and then the left upper recess push the catch down and the screw driver forward at the...

Page 71: ...rmSelect 8 Maintenance 71 100 Fig 36 Remove the control unit from the bracket and insert through the opening of the bracket and place inside Repeat the steps of Fig 34 Fig 36 with the second control u...

Page 72: ...8 Maintenance ThermSelect 72 100 8 4 Spare part drawing and legend Fig 37...

Page 73: ...er is suddenly disrupted when the heat pump is running e g due to standstill of circulating heat pump or closed valves it can due to the thermal inertia of the system occur that the high pressure safe...

Page 74: ...st factory service Controller parameter set incorrectly Set parameters according to guide Contact interrupted Check LP switch wiring Manual unlocking necessary if the low pres sure monitor triggers De...

Page 75: ...service Operation with incorrect refrigerant Request factory service Pressure gas temperature too high Request factory service Fault current FI circuit breaker ac tivates Wrong allocation of neutral l...

Page 76: ...st technical changes Copyright These instructions are copyright protected by MHG Heiztechnik Duplications of any type and in any form also excerpts as well as the exploitation notification and or comm...

Page 77: ...are parts that must be re placed when the device is used as intended within the warranty pe riod The warranty periods have been extended by law makers however this does not preclude possible wear and...

Page 78: ...mised are delivers as new at their own costs and risk MHG provides warranty for replaced parts to the same extent as for the original delivery item The following warranty periods apply for the ThermSe...

Page 79: ...f the pressure of the medium in the refrigerant cycle exceeds 28 bar The refrigerants R407C and the cooling equipment machine oil diester oil are environmentally compatible According to the EU safety...

Page 80: ...ems and heat pumps Safety and envi ronmentally relevant requirements DIN EN 378 01 2000 Air conditioners liquid cooling sets and heat pumps with electrically powered compressors heating DIN EN 255 07...

Page 81: ...rant refilled g 4 Refrigerant recycled g 5 Functional check of cooling cycle F 6 Leak tightness check of cooling cycle F 7 Electric connections check F 8 Inspection of seals and replacement where nece...

Page 82: ...eat meter reading Heat meter reading Leak tightness verification completed Date Leak tightness verification completed Leaks repaired yes no Leaks repaired Inspection due after 4 weeks Date Inspection...

Page 83: ...Heat meter reading Heat meter reading Leak tightness verification completed Date Leak tightness verification completed Leaks repaired yes no Leaks repaired Inspection due after 4 weeks Date Inspection...

Page 84: ...Heat meter reading Heat meter reading Leak tightness verification completed Date Leak tightness verification completed Leaks repaired yes no Leaks repaired Inspection due after 4 weeks Date Inspection...

Page 85: ...Heat meter reading Heat meter reading Leak tightness verification completed Date Leak tightness verification completed Leaks repaired yes no Leaks repaired Inspection due after 4 weeks Date Inspection...

Page 86: ...eat pump with heating warm water change over valve Legend for Fig 38 Abbrev iation Meaning Abbrev iation Meaning 22 0 Ventilator 1 FIL Filter 42 2 Sensor air heat pump flow B21 FL Fluid line 42 3 Sens...

Page 87: ...94 71000 5631 94 71000 5641 94 71000 5651 Expansion vessel Heating Design of the MAG on site Fresh water connection To be provided on site Electrical Connections RVS 61 843 Component Connection to Li...

Page 88: ...arm water change over valve and buffer storage Legend for Fig 39 Abbrev iation Meaning Abbrev iation Meaning 22 0 Ventilator 1 FIL Filter 42 2 Sensor air heat pump flow B21 FL Fluid line 42 3 Sensor a...

Page 89: ...000 5615 94 71000 5621 94 71000 5631 94 71000 5641 94 71000 5651 Overflow valve To be provided on site Expansion vessel Heating Design of the MAG on site Fresh water connection To be provided on site...

Page 90: ...condenser pump 120 2816 F Source temp min brine 10 2819 I Lead time source 5 2842 I Condenser run time min 0 2843 I Condenser idle time min 10 2845 F Reduction shut off temp Max 0 2853 O Low pressure...

Page 91: ...rmediate circuit pump Q33 TWW Mixing pump Q35 Collector pump Q5 Collector pump 2 Q16 Solar pump ext exchanger K9 Solar con trol element buffer K8 Solar control element swimming pool K18 Electrical ins...

Page 92: ...ing contact Break contact 6000 O Control direction HP guard E10 Break contact Working contact Break contact 6001 O Cntrl dir Evap1 overload E11 Break contact Working contact Work con tact Break contac...

Page 93: ...me condenser pump 120 2816 F Source temp min brine 10 2819 I Lead time source 5 2842 I Condenser run time min 0 2843 I Condenser idle time min 10 2845 F Reduction shut off temp Max 0 2853 O Low pressu...

Page 94: ...termediate circuit pump Q33 TWW Mixing pump Q35 Collektor pump Q5 Collector pump 2 Q16 Solar pump ext exchanger K9 Solar con trol element buffer K8 Solar control element swimming pool K18 Electrical i...

Page 95: ...Working contact Break contact 6000 O Control direction HP guard E10 Break contact Working contact Break contact 6001 O Cntrl dir Evap1 overload E11 Break contact Working contact Work con tact Break c...

Page 96: ...Your notes ThermSelect 96 100...

Page 97: ...ThermSelect Your Notes 97 100...

Page 98: ...Your notes ThermSelect 98 100 12 Index...

Page 99: ...mSelect design 90 Factory parameterisation for ThermSelect Pro design 93 G Generator shut off valve 33 91 94 H Heat pump connections 49 Heat pump installation 46 Heating water 10 50 74 Hot surfaces 8...

Page 100: ...Your notes ThermSelect 100 100...

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