Rotex RKHWMX300C Page 3 Installation And Maintenance Instructions Manual Download

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List of contents

FA ROTEX HPSU monobloc compact • 09/2017

General Information . . . . . . . . . . . . . . . . . . . . 4

1.1

Refer to the manual . . . . . . . . . . . . . . . . . . . . . . .4

1.2

Warranty conditions . . . . . . . . . . . . . . . . . . . . . . .4

Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.1

Warnings and symbols . . . . . . . . . . . . . . . . . . . . .5

2.1.1

Meaning of the warnings . . . . . . . . . . . . . . . . . . . . . .5

2.1.2

Validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2.1.3

Order number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

2.1.4

Handling instructions . . . . . . . . . . . . . . . . . . . . . . . . .5

2.2

Avoiding danger . . . . . . . . . . . . . . . . . . . . . . . . . .5

2.3

Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

2.4

Instructions for operating safety . . . . . . . . . . . . . .6

2.4.1

Before working on the hydraulic system . . . . . . . . . .6

2.4.2

Electrical installation . . . . . . . . . . . . . . . . . . . . . . . . .6

2.4.3

Site of installation . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2.4.4

Heating system and sanitary connection. . . . . . . . . .7

2.4.5

Requirements for the heating water . . . . . . . . . . . . .7

2.4.6

Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2.4.7

Instruct the owner . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Product description . . . . . . . . . . . . . . . . . . . . 8

3.1

Design and components . . . . . . . . . . . . . . . . . . . .8

3.1.1

Exterior of the device and interior structure
RKHWMX(B)300C. . . . . . . . . . . . . . . . . . . . . . . . . . .8

3.1.2

Exterior of the device and interior structure
RKHWMX(B)500C. . . . . . . . . . . . . . . . . . . . . . . . . . .9

3.1.3

Upper side of the device . . . . . . . . . . . . . . . . . . . . .10

Set-up and installation . . . . . . . . . . . . . . . . . 12

4.1

Dimensions and connections . . . . . . . . . . . . . . .13

4.1.1

RKHWMX(B)300C. . . . . . . . . . . . . . . . . . . . . . . . . .13

4.1.2

RKHWMX(B)500C. . . . . . . . . . . . . . . . . . . . . . . . . .14

4.1.3

Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . .15

4.2

Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

4.3

Removing the cover and thermal insulation . . . .17

4.4

Water connection . . . . . . . . . . . . . . . . . . . . . . . .18

4.4.1

Aligning the connections of the heating supply and
return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

4.4.2

Connecting hydraulic lines . . . . . . . . . . . . . . . . . . .20

4.4.3

Installation of the DB connection kit ( 14 15 90) . . .21

4.4.4

Installation of the P connection kit ( 14 15 89) . . . .21

4.5

Electrical connection . . . . . . . . . . . . . . . . . . . . . .22

4.5.1

ROTEX HPSU monobloc compact overall c

onnection diagram . . . . . . . . . . . . . . . . . . . . . . . . . .23

4.5.2

Position of the printed circuit boards . . . . . . . . . . . .24

4.5.3

RTX-EHS printed circuit board connection

diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

4.5.4

RoCon BM2C printed circuit board connection
diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

4.5.5

Mains connection

ROTEX HPSU monobloc compact . . . . . . . . . . . . .25

4.5.6

Opening the controller housing and establishing
electrical connections . . . . . . . . . . . . . . . . . . . . . . .26

4.5.7

Connecting the heat pump outdoor unit . . . . . . . . .26

4.5.8

Connecting an external switching contact . . . . . . . .26

4.5.9

External requirement request (EBA) . . . . . . . . . . . .27

4.5.10 Connecting an electric ROTEX backup heater

(BUxx) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

4.5.11 Connecting an external heat generator . . . . . . . . . .29
4.5.12 Connecting a ROTEX room thermostat. . . . . . . . . .30
4.5.13 Connecting optional ROTEX RoCon system

components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

4.5.14 Connecting a ROTEX HP convector . . . . . . . . . . . .31
4.5.15 Connecting switching contacts (AUX outputs) . . . .31
4.5.16 Off-peak mains connection (HT/NT) . . . . . . . . . . . .32

4.5.17 Connecting an intelligent controller

(Smart Grid - SG). . . . . . . . . . . . . . . . . . . . . . . . . . 32

4.5.18 Symbols and key names for connection and wiring

diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

4.6

Filling the system on the water side . . . . . . . . . . 34

4.6.1

Checking the water quality and adjusting the

pressure gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

4.6.2

Filling the hot water heat exchanger . . . . . . . . . . . 34

4.6.3

Filling the storage tank . . . . . . . . . . . . . . . . . . . . . 34

4.6.4

Filling the heating system . . . . . . . . . . . . . . . . . . . 34

Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.1

Initial start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.1.1

Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.1.2

Starting the device . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.1.3

Setting commissioning parameters . . . . . . . . . . . . 36

5.1.4

Bleeding the hydraulic system . . . . . . . . . . . . . . . . 36

5.1.5

Checking the minimum flow. . . . . . . . . . . . . . . . . . 37

5.1.6

Setting the parameter Screed Program

(only when required) . . . . . . . . . . . . . . . . . . . . . . . 37

5.2

Re-commissioning . . . . . . . . . . . . . . . . . . . . . . . 38

5.2.1

Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5.2.2

Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Taking out of operation . . . . . . . . . . . . . . . . 39

6.1

Temporary shutdown . . . . . . . . . . . . . . . . . . . . . 39

6.1.1

Draining the storage tank . . . . . . . . . . . . . . . . . . . 39

6.1.2

Draining the heating circuit and hot water circuit . . 40

6.2

Final shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Service and maintenance. . . . . . . . . . . . . . . 42

7.1

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

7.2

Activities to be performed annually . . . . . . . . . . 42

7.3

Filling, topping up the storage tank . . . . . . . . . . 43

7.4

Filling, topping up the heating system . . . . . . . . 44

7.4.1

Protecting the water circuit against freezing . . . . . 44

7.4.2

Filling, topping up steps . . . . . . . . . . . . . . . . . . . . . 45

Errors, malfunctions and messages . . . . . . 47

8.1

Recognising errors, correcting malfunctions . . . 47

8.1.1

Current error display . . . . . . . . . . . . . . . . . . . . . . . 47

8.1.2

Reading out the protocol . . . . . . . . . . . . . . . . . . . . 47

8.1.3

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

8.2

Malfunctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

8.3

Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

8.4

Control and configuration of DIP switches . . . . . 60

8.5

Emergency operation . . . . . . . . . . . . . . . . . . . . . 60

Hydraulic system connection . . . . . . . . . . . 61

10 Technical data . . . . . . . . . . . . . . . . . . . . . . . . 63

10.1 Equipment data . . . . . . . . . . . . . . . . . . . . . . . . . 63

10.1.1 RKHWMX(B)300C . . . . . . . . . . . . . . . . . . . . . . . . . 63
10.1.2 RKHWMX(B)500C . . . . . . . . . . . . . . . . . . . . . . . . . 65

10.2 Characteristic lines. . . . . . . . . . . . . . . . . . . . . . . 67

10.2.1 Sensor characteristic lines. . . . . . . . . . . . . . . . . . . 67

10.3 Tightening torque . . . . . . . . . . . . . . . . . . . . . . . 67
10.4 Circuit diagram

ROTEX HPSU monobloc compact . . . . . . . . . . 68

11 Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

12 List of keywords . . . . . . . . . . . . . . . . . . . . . . 71

Summary of Contents for RKHWMX300C

Page 1: ...ertified companies ROTEX HPSU monobloc compact Installation and maintenance instructions Solar storage tank with heating controller For types RKHWMX300C RKHWMX500C RKHWMXB300C RKHWMXB500C GB Edition 09 2017 ...

Page 2: ...dartlar ve norm belirten belgelerle uyumludur 01 Directives as amended 02 Direktiven gemäß Änderung 03 Directives telles que modifiées 04 Richtlijnen zoals geamendeerd 05 Directivas según lo enmendado 06 Direttive come da modifica 07 ȅįȘȖȚȫȞ ȩʌȦȢ ȑȤȠȣȞ ĲȡȠʌȠʌȠȚȘșİȓ 08 Directivas conforme alteração em 09 Ⱦɢɪɟɤɬɢɜ ɫɨ ɜɫɟɦɢ ɩɨɩɪɚɜɤɚɦɢ 10 Direktiver med senere ændringer 11 Direktiv med företagna ändri...

Page 3: ...ackup heater BUxx 27 4 5 11 Connecting an external heat generator 29 4 5 12 Connecting a ROTEX room thermostat 30 4 5 13 Connecting optional ROTEX RoCon system components 30 4 5 14 Connecting a ROTEX HP convector 31 4 5 15 Connecting switching contacts AUX outputs 31 4 5 16 Off peak mains connection HT NT 32 4 5 17 Connecting an intelligent controller Smart Grid SG 32 4 5 18 Symbols and key names ...

Page 4: ...al provides all the necessary information for installa tion start up and maintenance as well as basic information on operation and settings All parameters needed for trouble free operation have been configured at the factory Please see the attached documents for a detailed description of operation and control Relevant documents ROTEX HPSU monobloc compact Operating instructions for the user owner ...

Page 5: ...ved This assumes knowledge and use of the con tents of this manual of the relevant accident pre vention regulations as well as the recognised safety related and occupational health rules DANGER Draws attention to imminent danger Disregarding this warning can lead to serious injury or death WARNING Indicates a potentially dangerous situation Disregarding this warning may result in serious physical ...

Page 6: ...opriate installation and maintenance of heating climate control and cooling installations and heat pumps Ɣ Switch off the external main switch during all work on the ROTEX HPSU monobloc compact and secure it to prevent uninten tional activation Ɣ Seals must not be damaged or removed Ɣ Make sure that the safety valves comply with the requirements of EN 12828 when connecting on the heating side and ...

Page 7: ...ystem SAS 1 15 60 21 Ɣ The dirt filter must be cleaned at regular intervals 2 4 5 Requirements for the heating water Observe the relevant regulations of technology to prevent creation of corrosion products and de posits Minimum requirements regarding the quality of filling and supplementary water Water hardness calcium and magnesium calculated as calcium carbonate 3 mmol l Conductivity 1500 ideal ...

Page 8: ...ructure RKHWMX B 300C Fig 3 1 RKHWMX B 300C design and components exterior view and interior structure Key names see tab 3 1 30 1 2 3 4 5 33 19 17 3UV DHW 18 29 28 RoCon B1 3UVB1 9 23 24 22 19 3UV DHW 7a 1 2 3 4 5 31 32 3UVB1 17 18 12 41 10 20 27 15 24 11 tDHW X 26 M A B AB 28 29 M B A AB 14 13 21 X 4 SV 5 31 32 M B A AB M A B AB 3UV DHW 3UVB1 DS MAG tV BH ...

Page 9: ... 3 2 RKHWMX B 500C design and components exterior view and interior structure Key names see tab 3 1 19 3UV DHW 28 29 RoCon B1 3UVB1 17 18 33 1 2 3 30 4 5 7a 15 9 23 24 22 20 13 2 3 29 28 tDHW 19 4 5 31 32 X M A B AB M B A AB 21 12 41 24 11 10 14 16 3UV DHW 17 1 26 27 18 3UVB1 X 4 SV 5 31 32 M B A AB M A B AB 3UV DHW 3UVB1 DS MAG tV BH ...

Page 10: ...9 2017 3 x Product description 3 1 3 Upper side of the device Fig 3 3 RKHWMX 300 500 C design and components upper side of the device A 17 33 33 4 34 5 34 3UV DHW 3UVB1 15 1 3UV DHW DS 40 23 35 38 30 SV A 39 19 3UV DHW 2 8 tV BH 3 32 31 ...

Page 11: ... sleeve for storage tank temperature sensor tDHW 20 Pressure free storage tank water 21 Solar zone 22 Hot water zone 23 Safety overflow connection 24 Mount for handle 25 Rating plate 26 Cover 27 Solar return flow 28 Solar feed 3 4 IG 1 AG type B only 29 Solar return flow 3 4 IG 1 AG type B only 30 Discharge fitting cover 31 Outdoor unit water inlet connection 1 AG 32 Outdoor unit water outlet conn...

Page 12: ... such as e g installation repair connection and ini tial commissioning must only be carried out by persons who are authorised who have successfully completed qualifying technical or vocational training for the respective activity and who have taken part in advanced training sessions recognised by the relevant responsible authority This especially includes heating specialists and specialist electri...

Page 13: ...ctions 4 1 1 RKHWMX B 300C 1 Solar inflow 2 Cold water 3 Hot water 4 Heating flow 5 Heating return flow 6 Outdoor unit water outlet connection 7 Outdoor unit water inlet connection 8 Solar feed type B only 9 Solar return type B only A Front B Rear Fig 4 1 RKHWMX B 300C connections and dimensions ...

Page 14: ...WMX B 500C 1 Solar inflow 2 Cold water 3 Hot water 4 Heating flow 5 Heating return flow 6 Outdoor unit water outlet connection 7 Outdoor unit water inlet connection 8 Solar feed type B only 9 Solar return type B only A Front B Rear Fig 4 2 RKHWMX B 500C connections and dimensions ...

Page 15: ... Ɣ Installation in an explosion risk environment is not permissible Ɣ The electronic controller must never be exposed to the effects of weather Ɣ The storage tank may not be exposed to continuous direct sunlight as the UV radi ation and the effects of the weather will damage the plastic Ɣ The ROTEX HPSU monobloc compact must be installed protected from frost Ɣ Make sure that the supply company doe...

Page 16: ... cabinet behind panels or in other restricted conditions sufficient ventilation e g using ventilation gratings must be ensured Ɣ If required install the optional backup heater BUxx in the ROTEX HPSU monobloc compact fig 4 5 Observe the installation and operating instructions enclosed with the accessories tightening torque see chap 10 3 CAUTION If the ROTEX HPSU monobloc compact is not installed a ...

Page 17: ...hown on RKHWMX B 500C with installation of the optional backup heater 1200 mm ኢ X 2 3 4 5 s2 s1 80 C 1000 m m max 10 Nm 2050 X 1 Fig 4 6 Remove the protective cover If the installation conditions require the hydraulic con nection directly upwards the cover can be cut out along the broken line Fig 4 7 Producing the cover cut out Fig 4 8 ROTEX HPSU monobloc compact without protective cover ...

Page 18: ...ive EPP moulded parts that can be easily damaged if not handled correctly Ɣ Only remove the thermal insulation in the order stated below and in the stated direc tions Ɣ Do not use force Ɣ Do not use tools Fig 4 9 Removing the top thermal insulation Fig 4 10 Removing the bottom thermal insulation The thermal insulation is installed in reverse order CAUTION If the ROTEX HPSU monobloc compact is con ...

Page 19: ...lead to contact corro sion damage and subsequently to leakage Ɣ Flush the feed pipes before filling the heat exchanger Ɣ Install a dirt filter in the cold water supply see chap 2 4 4 RKHWMXB300C AND RKHWMXB500C ONLY CAUTION If the heat exchanger for pressurised solar system charging fig 4 1 fig 4 2 items 8 9 is connected to an external heater e g wood burning boiler the ROTEX HPSU monobloc compact...

Page 20: ...n flow is reliably prevented Ɣ Connect the drain line to the safety overpressure valve and diaphragm expansion vessel as per EN 12828 Check the seat of the drain hose on the pressure relief valve If necessary connect and install a separate hose Ɣ Carefully insulate pipework against heat loss and to avoid condensation insulation thickness at least 20 mm Water shortage protection the controller s pr...

Page 21: ...another external heat generator on the storage tank The kit contains two thermally insulated corrugated pipes that are connected to the connections of the storage tank via a union nut At the other end of the corrugated pipes there is an adapter for different connection sizes of the supply and return pipes WARNING There is a danger of scalding at hot water tem peratures over 60 C This is possible w...

Page 22: ...r formed by electrical engineers in compli ance with valid standards and guidelines as well as the specifications of the energy supply company Ɣ The equipment covers and maintenance opening covers must be re fitted immedi ately after completion of the work CAUTION Increased temperatures may occur in the ROTEX HPSU monobloc compact control housing during operation This can result in currently carry...

Page 23: ... Smart Grid EBA J8 J8 J14 J16 GND t V BH P Z T AU BUxx 1 230V BUxx 3 400V RoCon U1 RoCon M1 RoCon UFH output AUX 0 75 mm sig 0 5 mm sig 0 5 mm sig EXT HT NT RT 0 5 mm sig 0 5 mm sig 1 5 mm sig 0 75 1 5 mm sig SG 0 75 mm sig 0 75 mm sig 0 75 mm sig EXT 1 5 mm 230V P1 P2 EVU RoCon BM2C RTX EHS L1 N PE BU BU L1 L2 L3 N PE BU BU BU BU XBUH1 XBUH1 2 5 mm 230 V 2 5 mm 400 V N N PE PE J6 V3 2 5 mm 230 V ...

Page 24: ...ion of the printed circuit boards 4 5 3 RTX EHS printed circuit board connection diagram 1 Controller housing 2 Controller cover 3 Controller control panel Fig 4 18 Overview of printed circuit boards inside housing Fig 4 19 RTX EHS printed circuit board backup heater see chap 4 5 10 ...

Page 25: ...bloc compact to the mains to the domestic installation s junc tion box isolator according to EN 60335 1 via an all pole separating main switch to be installed in the building Ensure that the polarity is correct The outdoor unit and optional accessories must be connected to the ROTEX HPSU monobloc compact controller separately To do this the cover of the ROTEX HPSU monobloc compact must be removed ...

Page 26: ... in rotary switch position An operating mode activated by the external switching contact is shown on the controller display by EXT followed by the symbol for the operating mode see the operating instructions for the con troller When special functions are activated for example Manual Oper ation the input is not evaluated Fig 4 21 Remove the right hous ing cover Fig 4 22 Unlock the front panel Fig 4...

Page 27: ... RTX EHS fig 4 19 in the ROTEX HPSU monobloc compact controller housing Ɣ Insert connector XBUH1 of the backup heater at the rear of the ROTEX HPSU monobloc compact controller housing Ɣ Set parameter Function Heating Rod to 1 see RoCon mb controller operating instructions Connection variant 1 Operating mode Resistance RV Tolerance Standby 680 ȍ 5 Heating 1200 ȍ Reducing 1800 ȍ Summer 2700 ȍ Automa...

Page 28: ...with a heating ele ment BUH1 BUH3 the parameter Function Heating Rod 2 must be set Fig 4 34 Connection of a backup heater with a heating element BUH1 BUH3 key see fig 4 32 WARNING Contact with a damaged backup heater con nection cable can result in an electric shock and therefore life threatening injuries and burns Ɣ Do not repair the backup heater s connection cable Î Always replace the entire ba...

Page 29: ...st Connection to K3 if the external heat generator under takes hot water preparation and heating support setting of parameter Function Heating Rod 2 or Connection to K1 and K3 if two external heat generators are used setting of parameter Function Heating Rod 3 In this case K1 connects the external heat generator e g gas or oil fired boiler for heating support and K3 con nects the external heat gen...

Page 30: ...evices with a total line length of up to 800 m can be connected in the entire RoCon system ROTEX RoCon U1 room station A separate RoCon U1 room station can be connected for each heating circuit to enable remote adjustment of operating modes and target room temperatures from another room ROTEX RoCon M1 mixer module It is possible for the ROTEX HPSU monobloc compact to be con nected to the RoCon M1 ...

Page 31: ...puts The switching contacts AUX outputs can be used for various parameterisable functions When the ROTEX HPSU monobloc compact is in Cooling oper ating mode switching contact B B1 closes Switching contact B B1 is used e g to connect an external status display Cooling mode active or as a switchover contact heating cooling on the basic module of the ROTEX RoCon UFH floor heating controller Switchove...

Page 32: ...again potential free switching contact S2S closes and the system resumes operation b If implemented as a normally open switching contact parameter HT NT Contact 0 must be set When the EVU sends the off peak signal switching contact S2S is closed The system switches to Mandatory OFF If the signal is sent again potential free switching contact S2S opens and the system resumes operation 4 5 17 Connec...

Page 33: ...1 Connecting cable between HPSU monobloc compact with cooling function and HP convec tor HT NT Switching contact for off peak mains connection PZ Circulation pump RJ45 CAN Internal wiring plug connection RoCon BM2C to RoCon B1 RoCon B1 Controller control panel RoCon BM2C Printed circuit board basic controller module RoCon BM2C J1 Not assigned J2 Plug connection3UVB1 J3 AUX switching contact plug c...

Page 34: ...connections do not interrupt the cold water flow this will ensure that the heat exchanger will be fully vented and that any impurities or resi due will be discharged 4 6 3 Filling the storage tank See chap 7 3 4 6 4 Filling the heating system See chap 7 4 RTX EHS K1 Relay 1 for backup heater K2 Relay 2 for backup heater K3 Relay 3 for backup heater X1 Terminal strip for backup heater mains connec ...

Page 35: ...ura tion is loaded Î The Starting Up message is displayed Î The Initialization message is displayed Î The standard display for the current rotary switch setting is shown WARNING A ROTEX HPSU monobloc compact erected and installed incorrectly may not operate prop erly and can be dangerous for the health and safety of individuals Ɣ The ROTEX HPSU monobloc compact must only be commissioned by authori...

Page 36: ...rt Setup Language Date Setup Keylock Function Access Rights Outdoor type Access Rights Access Rights Access Rights Fig 5 2 Setting the commissioning parameters If the storage tank temperature falls below specific minimum values the ROTEX HPSU monobloc compact s safety settings prevent the heat pump from being operated at low outside temperatures Outside temperature 2 C minimum storage tank tempera...

Page 37: ...ng instructions 5 1 6 Setting the parameter Screed Program only when required With the screed program the feed temperature is controlled according to a pre set temperature profile See the controller operating instructions for further information on the screed program its activation and sequence After the screed program has ended the RoCon mb control unit continues to work in the previously set ope...

Page 38: ...ed commission it according to the enclosed instructions After shutting off the ROTEX solar system again check the fill level in the buffer storage tank CAUTION Setting up in frosty conditions can result in damage to the entire heating system Ɣ Commissioning at temperatures below 0 C only if a water temperature of at least 5 C is guaranteed in the heating system and the storage tank ROTEX recommend...

Page 39: ...period of time with a suitable fixture for safely draining or collecting the escaping water with suitable protective clothing CAUTION A heating system which is shut down can freeze in the event of frost and may suffer damage Ɣ Drain the water out of the shutdown heating system if there is a danger of frost Ɣ If the heating system is not drained the power supply must be ensured and the external mai...

Page 40: ...and hot water circuit Ɣ Connect the drain hose to the KFE cock of the ROTEX HPSU monobloc compact Ɣ Open the combined filling and draining valve on the ROTEX HPSU monobloc compact Ɣ Drain the heating and hot water circuits Ɣ Disconnect the heating flow and return flow as well as the cold water inflow and the hot water outflow from the ROTEX HPSU monobloc compact Ɣ Connect the discharge hose on the...

Page 41: ...U monobloc compact such as e g dismantling compo nents temporary or final shut down of the system must only be carried out by persons who are authorised who have successfully completed qualifying technical or vocational training for the respective activity and who have taken part in advanced training sessions recognised by the relevant responsible authority These particularly include certified hea...

Page 42: ... such as e g maintenance or repair must only be carried out by persons who are authorised who have successfully completed qualifying technical or vocational training for the respective activity and who have taken part in advanced training sessions recognised by the relevant responsible authority These particularly include certified heating engineers qualified electricians and HVAC specialists who ...

Page 43: ...23 that was connected as a safety overflow Ɣ Remove the filling hose with non return valve 1 2 Thanks to its design the ROTEX HPSU monobloc compact requires very little maintenance No corro sion protection equipment is required such as expendable anodes This means there is no need for maintenance work such as changing the protective anodes or cleaning the inside of the storage tank If the connecti...

Page 44: ...uit The required concentration depends on the lowest expected outdoor temperature and on whether you want to pro tect the system from bursting or from freezing To prevent the system from freezing more glycol is required Add glycol accord ing to the table below Tab 7 1 Required glycol concentration 1 Solar inflow 2 Safety overflow Fig 7 1 Filling buffer storage without connected DrainBack solar sys...

Page 45: ...water from its environment Therefore do NOT add glycol that has been exposed to air Leaving the cap off the glycol container causes the concentration of water to increase The glycol concentration is then lower than assumed As a result the hydraulic compo nents might freeze up after all Take preventive actions to ensure a minimal exposure of the glycol to air CAUTION Ɣ If overpressure occurs the sy...

Page 46: ...t phase the HPSU monobloc com pact runs in hot water heating operation 11 Constantly check the water pressure on the external pressure gauge during hot water heating mode and top up water via the KFE cock fig 7 2 item 2 if necessary 12 Vent the entire heating system as described in chap 5 1 4 open the system s control valves At the same time the underfloor heating system can be filled and flushed ...

Page 47: ...ay in the controller Ascertain cause of triggering the contactor and remedy fault Start the system again Î When the cause has been eliminated the system will con tinue to operate as normal Contactor not triggered a No error codes are shown but the system is not working properly Search for and rectify faults see chap 8 2 Î Once the cause has been eliminated the system contin ues to work normally b ...

Page 48: ...connect the system from the power supply for at least 10 s and then switch on again Heating does not warm up Requirement heating mode shut off e g switching time program is in the economy phase outside temperature is too high parameters for optional backup heater BUxx incorrectly set requirement for hot water active Ɣ Check the operating mode setting Ɣ Check the request parameters Ɣ Check the date...

Page 49: ... volume in heating system too low Ɣ Check admission pressure in the expansion tank and water pressure if necessary top up heating water and adjust admission pressure see chap 7 4 Hot water supply is taking too much of the out put of the heat pump Ɣ Check parameter Function Heating Rod settings in Configuration level Setup sub level Ɣ Check parameter Power DHW settings in Configu ration level Syste...

Page 50: ...xx has triggered Unlock System is in Heating operating mode Ɣ Switch the operating mode to Cooling Outside temperature 4 C The heat pump has automatically switched to Heating operating mode to be able to guarantee frost protection if the outside temperature continues to fall No room cooling possible Cooling output for room cooling too low Water flow too low Ɣ Check that all stop valves of the wate...

Page 51: ...ge is working correctly connection of an external pressure gauge Ɣ Check admission pressure in the expansion tank and water pressure if necessary top up heating water and adjust admission pressure see chap 7 4 Safety pressure relief valve is leaking or always open Expansion tank is defective Ɣ Replace expansion tank Water pressure in heating system is too high Ɣ On the controller rotary switch pos...

Page 52: ... Check replace E129 Fault pressure sensor Pressure sensor DS Pressure sensor DS defective Ɣ Check replace E198 Flow measure ment not plausible Flow sensor FLS out door unit 3 way switch valve3UVB1 Error occurs when 3 way switch valve 3UVB1 is in bypass position the internal circulation pump is running but a volumetric flow that is too low is measured Required minimum water flow rate Heating Coolin...

Page 53: ...meter Overview Ɣ Does this fault occur during defrosting in room heating or hot water preparation operating mode With optional backup heater check its power supply and fuses Ɣ Check fuses pump fuse FU1 on printed circuit board A1P outdoor unit and conductor plate fuse F1 on RoCon BM2C printed circuit board Ɣ Check flow sensor FLS outdoor unit for soiling and function if necessary clean replace Ɣ F...

Page 54: ...E5 Load protec comp Electronic overload pro tection in the refrigerant compressor outdoor unit Refrigerant compressor overload protection has triggered Pressure difference in the refrigerant circuit between high and low pressure side too high 26 bar Refrigerant compressor defective Inverter circuit board in the heat pump outdoor unit defective Refrigerant compressor inverter circuit board wiring p...

Page 55: ...or tDHW E9024 J1 Fault pressure sensor Pressure sensor S1NPH in the heat pump outdoor unit E9025 J3 Return flow sensor Outlet temperature sen sor R2T in the heat pump outdoor unit E9026 J5 Suction pipe sen sor Intake temperature sen sor R3T in the heat pump outdoor unit E9027 J6 Aircoil sensor Defrost Temperature sensor of fin heat exchanger R5T in the heat pump outdoor unit E9028 J7 Aircoil senso...

Page 56: ...ve Inverter circuit board in the heat pump outdoor unit defective Fan motor defective Wiring poor contact Ɣ Check eliminate cause replace Ɣ If necessary contact a ROTEX service technician E9035 P1 Circuit board defective Inverter circuit board in the heat pump outdoor unit No supply voltage from the mains connection Inverter circuit board in the heat pump outdoor unit defective Ɣ Check eliminate c...

Page 57: ...consumption poss too high Ɣ Check the building s WW tap Ɣ Confirm that the software and EEPROM on the hydro printed circuit board match E9046 E6 compressor start up Software System detects an abnormal electricity wave shape 16 times in 5 min Ɣ Check whether the power supply meets the regulations Check for frequency fluctuations Ɣ Check the compressor Ɣ Check the compressor s connection and wiring ...

Page 58: ...ent part has been installed Ɣ Check whether the outer main conductor plate is receiving a power supply Ɣ Check the shut off valves Ɣ Check the heat exchanger Ɣ Check the temperature sensor on the fin heat exchanger Ɣ Check the quality of the refrigerant E9050 H0 Comfort Heating Software Power supply condition malfunction detected before or directly after the compressor starts up Ɣ Check the compre...

Page 59: ...ater in the heating system Ɣ Check heating system for leaks top up water W8007 Water pressure in heating system too high Warning message water pressure has exceeded permissible maxi mum value Diaphragm expansion vessel defective or incorrect admission pressure set Ɣ Check replace Parameter Max Pressure setting too low Ɣ Set the parameter if necessary If the setting is correct drain water to lower ...

Page 60: ...exchanger evaporator e Filter f Electronic expansion valve g Shut off valve fluid line h Service valve with maintenance connection gas pipe i Accumulator k Refrigerant compressor n 4 way switch valve heating cooling R1T Feed temperature sensor R2T Outlet temperature sensor refrigerant compressor R3T Fluid line temperature sensor R4T Return flow temperature sensor R5T Centre fin heat exchanger temp...

Page 61: ...heat exchanger connections on the storage tank side except heat exchangers for pressurised solar system charging Suitable non return valves must be installed in the building for components connected to the heat exchanger for pressurised solar system charging The system diagram below is an example and is never a substitute for careful system planning Please visit the ROTEX website for more diagrams...

Page 62: ...er with drive motor MK1 Mixer group with high efficiency pump MK2 Mixer group with high efficiency pump PWM regulated P High efficiency pump PMi Mixing circuit pump PS Solar operating pump PZ Circulation pump PWT Panel heat exchanger condenser RoCon mb Controller for ROTEX HPSU monobloc compact RoCon M1 Mixer circuit control RPS4 Solar control and pump unit RPWT1 Plate heat exchanger RRLQ Heat pum...

Page 63: ...eat exchanger litres 13 2 Heat exchanger surface area m2 2 7 Pressurised solar heat exchanger stainless steel 1 4404 Water capacity heat exchanger litres 4 2 Heat exchanger surface area m2 0 8 Thermal output data 1 Hot water quantity without reheating at a consumption rate of 8 l min 12 l min TS 50 C litres 184 153 Hot water quantity without reheating at a consumption rate of 8 l min TS 60 C litre...

Page 64: ...Cold water inlet temperature 10 C TDHW Hot water draw off temperature 40 C TS Storage tank target temperature charging status prior to start of draw off 2 At a reference clearance of 1 m 3 Number of individual lines in the connection cable including protective earth conductor The cross section of the individual lines is dependent on the current load the length of the connection cable and the respe...

Page 65: ...m2 2 5 Pressurised solar heat exchanger stainless steel 1 4404 Water capacity heat exchanger litres 9 3 Heat exchanger surface area m2 1 7 Thermal output data 1 Hot water quantity without reheating at a consumption rate of 8 l min 12 l min TS 50 C litres 364 318 328 4 276 4 324 282 288 4 240 4 Hot water quantity without reheating at a consumption rate of 8 l min TS 60 C litres 540 494 492 444 Hot ...

Page 66: ...HW Hot water draw off temperature 40 C TS Storage tank target temperature charging status prior to start of draw off 2 At a reference clearance of 1 m 3 Number of individual lines in the connection cable including protective earth conductor The cross section of the individual lines is dependent on the current load the length of the connection cable and the respective legal provisions 4 Hot water s...

Page 67: ... 3 ROTEX HPSU monobloc compact sensor table Maximum sensor tightening torque 10 Nm RS Sensor resistance NTC t Temperature tV BH Backup heater feed temperature sensor Fig 10 1 Characteristics of feed temperature sensor tV BH ROTEX HPSU monobloc compact RS Sensor resistance NTC t Temperature tDHW Storage tank temperature sensor Fig 10 2 Characteristic of storage tank temperature sensor tDHW ROTEX HP...

Page 68: ... 1 2 3 4 1 1 1 1 J10 J1 J15 1 1 1 AUX HT NT max 25V AC 60V DC SG RT PE PE N L1 PE N L1 PE N PE N CAN H CAN L CAN GND CAN VCC A B A1 B1 A2 GND BSK EBA GND GND Smart Grid GND GND GND EVU GND GND P Z 3UV DHW AB M A B 3UVB1 AB M A B RoCon U1 RoCon M1 EXT EBA 21 24 18 t DHW t V BH 5 7 kW L N PE 1 2 V3 1 230V N PE L1 L2 L3 Power surge category I I I Fuse 20A RCD FI XAG1 RoCon B1 DS RTX EHS X3 X1 K3 K2 K...

Page 69: ...11 x Notes FA ROTEX HPSU monobloc compact 09 2017 69 11 Notes ...

Page 70: ...70 FA ROTEX HPSU monobloc compact 09 2017 11 x Notes ...

Page 71: ...orage tank 34 43 Filling water 7 20 Floor heating controller 31 H Heat pump outdoor unit Electrical connection 26 Heating support 29 Housing installation room 7 Hydraulic connection Connection examples 61 Connections 10 13 14 Important information 7 Installation 18 I Initial commissioning 35 Installation 15 K KFE filling connection 39 44 M Maintenance 42 Malfunctions 47 Minimum flow 37 Mixer modul...

Page 72: ... ROTEX FA ROTEX HPSU monobloc compact Subject to change and correction 008 1442244_00 09 2017 ...

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