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Viessmann Divicon Installation Instructions For Contractors
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Viessmann Divicon Installation Instructions For Contractors

Viessmann Divicon Installation Instructions For Contractors

Heating/cooling circuit distributor with mixer and extension kit
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VIESMANN
Installation instructions
for contractors
Divicon
Heating/cooling circuit distributor with mixer and extension kit
Heating/cooling circuit distributor with mixer without extension kit
Heating/cooling circuit distributor without mixer
Divicon
6222149 GB
2/2024

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Summary of Contents for Viessmann Divicon

  • Page 1 VIESMANN Installation instructions for contractors Divicon Heating/cooling circuit distributor with mixer and extension kit Heating/cooling circuit distributor with mixer without extension kit Heating/cooling circuit distributor without mixer Divicon 6222149 GB 2/2024...
  • Page 2 Safety instructions Please follow these safety instruc- tions closely to prevent accidents and material losses. Safety instructions explained Danger Note This symbol warns against the risk Details identified by the word "Note" of injury. contain additional information. Please note This symbol warns against the risk of material losses and environmen- tal pollution.
  • Page 3 Repair work Please note Repairing components that fulfil a safety function can compromise the safe operation of the system. Replace faulty components only with genuine Viessmann spare parts.
  • Page 4 Manifold for 3 Divicons ............... 12 ■ Installing the low loss header ..............13 Installing the Divicon ................14 Fitting the Divicon to the wall mounting bracket ......... 14 ■ Fitting the Divicon to the manifold ............15 ■ Setting the K value ................
  • Page 5 Index (cont.) 9. Declaration of conformity ........................ 62 for extension kit 10. Keyword index ........................ 63...
  • Page 6 Rp 1 Rp 1 ¾ ¼ a (male) ¼ ¼ Installation example: Divicon with double manifold G 1½ Fig. 1 Divicon with mixer: Wall mounting, shown without thermal insulation, mixer motor or mixer extension kit G 1½ HR Heating/cooling circuit return...
  • Page 7 Divicon heating/cooling circuit distributor without mixer (shown with Wilo circulation pump) Note on diagrams The information in the following chapters applies to all Divicon types. The Divicon heating/cooling circuit dis- tributor with mixer and extension kit is shown as an example.
  • Page 8 Preparing for installation Removing the thermal insulation Fig. 6 Note Depending on the type, the flow temperature sensor and cable (step 3) may not be fitted. 6. Remove the thermal insulation from the manifold (if 7. Remove the thermal insulation from the low loss fitted).
  • Page 9 Fitting the wall mounting bracket Fitting the wall mounting bracket for 1 Divicon Ø 10 Fig. 7 Fitting the wall mounting brackets for a manifold for 2 or 3 Divicons...
  • Page 10 Fitting the wall mounting bracket (cont.) Ø 10 Fig. 8 Manifold for 2 Divicons Manifold for 3 Divicons...
  • Page 11 Installing the manifold Manifold for 2 Divicons Fig. 9 Heating flow From the heat generator Heating return To the heat generator...
  • Page 12 Installing the manifold (cont.) Manifold for 3 Divicons Fig. 10 Heating flow From the heat generator Heating return To the heat generator...
  • Page 13 Installing the low loss header Fig. 11 Heating flow To the heat generator Heating return Temperature sensor, low loss header From the heat generator...
  • Page 14 Installing the Divicon Fitting the Divicon to the wall mounting bracket Fig. 12...
  • Page 15 Installing the Divicon (cont.) Fitting the Divicon to the manifold Fig. 13 Note This installation procedure applies to manifolds for 2 or 3 Divicons. The installation for manifolds for 2 Divicons is shown as an example. Thermal insulation rings from the "cooling kit" (only...
  • Page 16 Installing the flow temperature sensor Note ■ The flow temperature sensor is already installed in the Divicon heating/cooling circuit distributor with mixer and extension kit. The Divicon heating/cooling circuit distributor without ■ mixer does not allow for installation of the flow tem-...
  • Page 17 Installing the flow temperature sensor (cont.) Fig. 15...
  • Page 18 Connecting the heating/cooling circuit Connecting the heating/cooling circuit to 1 Divicon Fig. 16 Heat generator...
  • Page 19 Connecting the heating/cooling circuit (cont.) Connecting the heating/cooling circuit to 2/3 Divicons with manifold Fig. 17 Note This installation procedure applies to manifolds for 2 or 3 Divicons. The installation for manifolds for 2 Divicons is shown as an example. Heat generator Manifold for 2 or 3 Divicons Low loss header...
  • Page 20 Connecting the heating/cooling circuit (cont.) Fig. 18...
  • Page 21 Filling the system Fig. 19 1. For filling (with heating water), open the check 2. For operation, position the slot of the screw in the valve in the heating return. To do so, move the slot horizontal position. of the screw to a vertical position.
  • Page 22 Fitting the thermal insulation Fitting the thermal insulation to the low loss header Fig. 20...
  • Page 23 Fitting the thermal insulation (cont.) Fitting the thermal insulation to the manifold Fig. 21...
  • Page 24 Note The cables must be laid in the joints before the thermal insulation is fitted to the Divicon. The fitted thermal insulation sections of the Divicon conceal the joints for the cables.
  • Page 25 Fitting the thermal insulation (cont.) Fitting the thermal insulation to the Divicon Fig. 23 Circulation pump connecting cable Flow temperature sensor connecting cable Note Flow temperature sensor cable is not available on all Divicon types.
  • Page 26 Fitting the thermal insulation (cont.) Fig. 24 Thermal insulation sections from the "cooling kit" (only required for cooling mode) It is essential to use the thermal insulation section for installation with a manifold.
  • Page 27 Fitting the thermal insulation (cont.) Fig. 25...
  • Page 28 Fitting the thermal insulation (cont.) Fig. 26 Thermal insulation sections from the "cool- ing kit" (only required for cooling mode)
  • Page 29 Fitting the thermal insulation (cont.) Fig. 27 Note Do not yet attach the front section of the thermal insu- lation to the Divicon.
  • Page 30 Installing the mixer motor a < b Fig. 28...
  • Page 31 Installing the mixer motor (cont.) 1 ... 2 Nm Fig. 29...
  • Page 32 Installing the mixer motor (cont.) Fig. 30 Thermal insulation section from the "cooling kit" (only required for cooling mode) If the mixer motor needs to be set manually, see page 51.
  • Page 33 Installing the mixer extension kit Fig. 31...
  • Page 34 PlusBus connection for connecting to the heat For heat pumps, connect the temperature sen- generator and another accessory sor for the low loss header according to the PWM1 No function system scheme; see: www.viessmann-schemes.com TS1, 2 Flow temperature sensor No function...
  • Page 35 Contact humidistat 230 V~: Connect to the mixer Note extension kit. For heat pumps with Viessmann One Base and a buf- See the following chapter. fer cylinder, the "ADIO electronics module" mixer Contact humidistat 24 V : Connect directly to the extension kit is always required to connect the contact ■...
  • Page 36 Mixer extension kit, PlusBus subscriber (cont.) Connecting the 230 V~ contact humidistat to the mixer extension kit fÖ sÖ L ? N L ? N 230 V ~ 24 V Fig. 34 Contact humidistat Heating/cooling circuit pump 24 V /230 V~ converter Mixer extension kit Note on installation with temperature limiter to restrict the maximum temperature...
  • Page 37 Mixer extension kit, PlusBus subscriber (cont.) Setting rotary switch S1 If several mixer extension kits are being connected, set rotary switch S1. Set the rotary switch on each extension kit to a con- secutive number: Heating/cooling circuit 2 w.mixer: Rotary switch to 1 ■...
  • Page 38 Mixer extension kit, PlusBus subscriber (cont.) Power supply Power supply at heat generator Separate power supply If the power supply for the extension is not made at the heat generator. Danger Incorrect electrical installations can lead to seri- ous injury from electrical current and result in appliance damage.
  • Page 39 Mixer extension kit, PlusBus subscriber (cont.) Connect the power supply in accordance with the dia- gram. If the power supply to the appliance is connected with a flexible power cable, ensure that the live conductors are pulled taut before the earth conductor in the event of strain relief failure.
  • Page 40 PlusBus connection for connecting to the heat For heat pumps, connect the temperature sen- generator and another accessory sor for the low loss header according to the PWM1 No function system scheme; see: www.viessmann-schemes.com TS1, 2 Flow temperature sensor No function...
  • Page 41 Mixer extension kit, PlusBus subscriber (cont.) 230 V~ connection Power supply 230 V~ P3, 52 Mixer motor 40A Power supply for accessories P1, 20 Heating circuit pump Power supply 230 V/50 Hz Mixer extension kit, KM-BUS subscriber Danger Please note Incorrect wiring can lead to serious injury from Electronic assemblies can be damaged by elec- electrical current and result in appliance dam-...
  • Page 42 Mixer extension kit, KM-BUS subscriber (cont.) Connecting the temperature limiter to restrict the maximum temperature (accessories) Electromechanical temperature limiter using the liquid expansion principle ■ Switches off the heating circuit pump if the set value is exceeded. The flow temperature is only slowly reduced in this ■...
  • Page 43 Mixer extension kit, KM-BUS subscriber (cont.) Connecting the extension kit to the control unit Weather-compensated Vitotronic control unit Danger Incorrect core assignment can result in serious injury and damage to the appliance. Take care not to interchange wires "L1" and "N". fÖ...
  • Page 44 Mixer extension kit, KM-BUS subscriber (cont.) Heating circuit affected by the mixer Sensors connected Rotary switch S1 Heating circuit with mixer M2 Flow temperature sensor "2" (delivered condition) Flow temperature sensor and return tem- "3" perature sensor Heating circuit with mixer M3 Flow temperature sensor "4"...
  • Page 45 Mixer extension kit, KM-BUS subscriber (cont.) 3 2 1 N?L1 fÖ Fig. 47 Extension kit Power supply 145 KM-BUS S1 Rotary switch: See the following table for position Control unit "X14" KM-BUS at terminals "1" and "2" (remove plug 145) With plug 145 to the KM-BUS distributor (accessories) Power supply...
  • Page 46 Mixer extension kit, KM-BUS subscriber (cont.) Power supply Connect accessories with a total wattage above Danger 400 W directly to the mains power supply. The absence of system component earthing can lead to serious injury from electric current if an Danger electrical fault occurs.
  • Page 47 Mixer extension kit, KM-BUS subscriber (cont.) Connection and wiring diagram Fig. 50 S1 Rotary switch for subscriber number addressing 230 V~ connection F1 Fuse, 2 A (slow) 52, (P3) Mixer motor 20, (P1) Heating circuit pump Extra low voltage (ELV) connections 145 KM-BUS connection for connecting to the control Power supply 230 V~ unit and another extension kit...
  • Page 48 Cable routing for mixer extension kit 230 V/50 Hz 230 V/50 Hz PlusBus/KM-BUS PlusBus/KM-BUS 230 V/50 Hz 230 V/50 Hz 230 V/50 Hz PlusBus/KM-BUS PlusBus/KM-BUS 230 V/50 Hz PlusBus/ 230 V/ KM-BUS 50 Hz Fig. 51...
  • Page 49 Sealing the thermal insulation Fig. 52 3. Fit the pipe insulation such that it is vapour diffu- 4. Cover the joints between the insulating parts with sion-proof. insulating tape.
  • Page 50 Commissioning Heat generator installation and service instruc- tions Changing the rotational direction (if required) Danger 3. Refit the casing cover. An electric shock can be life threatening. Before opening the boiler, disconnect it from 4. Check the rotational direction. the mains voltage, e.g. at the fuse or mains isolator.
  • Page 51 Setting the mixer motor manually Fig. 54...
  • Page 52 Specification Divicon heating/cooling circuit distributor with mixer and extension kit Connection to heating circuit (nominal diameter) DN 20 DN 25 DN 32 High efficiency circulation pump Wilo Type PARA 25/6 PARA 25/8 ■ Grundfos Type UPM3S 25-60 UPM3K 25-70 ■...
  • Page 53 Specification (cont.) Divicon heating/cooling circuit distributor with mixer without extension kit Connection to heating circuit (nominal diameter) DN 20 DN 25 DN 32 High efficiency circulation pump Wilo Type PARA 25/6 PARA 25/8 ■ Grundfos Type UPM3S 25-60 UPM3K 25-70 ■...
  • Page 54 Specification (cont.) Divicon heating/cooling circuit distributor without mixer Connection to heating circuit (nominal diameter) DN 20 DN 25 DN 32 High efficiency circulation pump Wilo Type PARA 25/6 PARA 25/8 ■ Grundfos Type UPM3S 25-60 UPM3K 25-70 ■ Energy efficiency index EEI Wilo ■...
  • Page 55 Storage and transport 20 °C to +70 °C − ■ Pressure drop graphs Note All diagrams refer to the respective Divicon with mixer, without manifold. Divicon with mixer DN 20 1100 Flow rate in l/h Fig. 56 With circulation pump Grundfos UPM3S...
  • Page 56 Specification (cont.) Divicon with mixer DN 25 1100 1300 1500 Flow rate in l/h Fig. 57 With circulation pump Wilo PARA 25/6 1100 1300 1500 Flow rate in l/h Fig. 58 With circulation pump Grundfos UPM3S 25-60...
  • Page 57 Specification (cont.) Divicon with mixer DN 32 1100 1300 1500 1700 1900 2100 2300 2500 Flow rate in l/h Fig. 59 With circulation pump Wilo PARA 25/8...
  • Page 58 2100 2300 2500 Flow rate in l/h Fig. 60 With circulation pump Grundfos UPM3K 25-70 Residual heads Note All diagrams refer to the respective Divicon with mixer, without manifold. Divicon with mixer DN 20 1000 1200 1400 1600 1800 2000 Flow rate in l/h Fig.
  • Page 59 1200 1400 1600 1800 2000 2200 Flow rate in l/h Fig. 62 With circulation pump Grundfos UPM3S 25-60 Divicon with mixer DN 25 1000 1200 1400 1600 1800 2000 2200 Flow rate in l/h Fig. 63 With circulation pump Wilo PARA 25/6...
  • Page 60 Specification (cont.) Divicon with mixer DN 32 1000 1200 1400 1600 1800 2000 2200 2400 Flow rate in l/h Fig. 65 With circulation pump Wilo PARA 25/8 1000 1200 1400 1600 1800 2000 2200 2400 Flow rate in l/h Fig. 66...
  • Page 61 Specification (cont.) Curve Divicon with mixer extension kit, PlusBus or KM-BUS subscriber Temperature in °C Temperature in K Fig. 67...
  • Page 62 Declaration of conformity for extension kit We, Viessmann Climate Solutions SE, D-35108 Allen- dorf, declare as sole responsible body that the named product complies with the European directives and supplementary national requirements in terms of its design and operational characteristics.
  • Page 63 Keyword index Connecting cables, routing Pressure drop – For installation with manifold........24 – Divicon..............55 – For installation with mixer extension kit....48 Connection and wiring diagram – Mixer extension kit, KM-BUS subscriber....47 Residual heads – Mixer extension kit, PlusBus subscriber....40 –...
  • Page 64 Viessmann Climate Solutions SE Viessmann Limited 35108 Allendorf / Germany Hortonwood 30, Telford Telephone: +49 6452 70-0 Shropshire, TF1 7YP, GB Fax: +49 6452 70-2780 Telephone: +44 1952 675000 www.viessmann.com Fax: +44 1952 675040 E-mail: info-uk@viessmann.com...