Viessmann VITOCAL 300-G Technical Manual
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Viessmann VITOCAL 300-G Technical Manual

Brine/water and water/water heat pump single and two-stage, from 21 kw
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VIESMANN
Technical guide
Heat pump with electric drive for DHW and central heating in
mono-mode or dual mode heating systems.
VITOCAL 300-G
Type BW/BWS:
■
Brine/water heat pump, 21.2 to 42.8 kW.
Type WW:
■
Water/water heat pump, 28.1 to 57.4 kW.
Type BW/WW:
■
For single stage operation or operation at stage 1 of a two-
stage heat pump.
Type BWS:
■
As stage 2 of a two-stage heat pump for increased output in
conjunction with type BW/WW.
Highly flexible due to combination with modules of different
■
output.
Easier handling through small and light modules.
■
5457 919 GB
2/2010
Type BW/BWS, WW
VITOCAL 300-G
Brine/water and water/water heat pump
Single and two-stage, from 21 kW

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  • Page 1 VIESMANN VITOCAL 300-G Brine/water and water/water heat pump Single and two-stage, from 21 kW Technical guide Heat pump with electric drive for DHW and central heating in mono-mode or dual mode heating systems. VITOCAL 300-G Type BW/BWS, WW Type BW/BWS: ■...

  • Page 2: Table Of Contents

    Index Index Vitocal 300-G 1. 1 Product description ..................... ■ Benefits of type BW/BWS, WW ................■ Delivered condition ....................1. 2 Specification ....................... ■ Specification ......................■ Dimensions of type BW/BWS, WW ................. ■ Output diagrams ..................... Installation accessories 2.
  • Page 3 ■ Vitocom 300, type FA5, FI2, GP2 ................68 ■ LON communication module ................... 69 ■ LON connecting cable for data exchange between control units ......70 ■ Extension of the connecting cable ................70 ■ Terminator ....................... 70 Keyword index .............................. 71 VIESMANN VITOCAL 300-G...

  • Page 4: Vitocal 300-G 1. 1 Product Description

    Vitocal 300-G 1.1 Product description Heat pumps with electric drive for DHW and central heating in mono- The water/water heat pumps with delivery and return wells gain heat mode, mono-energetic or dual mode operation. from the groundwater which offers stable temperatures, enabling the The brine/water heat pumps extract heat from the ground with the help heat pumps to achieve constantly high COPs.

  • Page 5: Specification

    Vitocal 300-G (cont.) 1.2 Specification Specification Type BW/BWS BW/BWS Output data to DIN EN 14511 (0/35 °C, 5 K spread) Rated heating output 21.2 28.8 42.8 Refrigerating capacity 17.0 23.3 34.2 Power consumption 4.48 5.96 9.28 Coefficient of performance ∊ (COP) 4.73...
  • Page 6 Vitocal 300-G (cont.) BW/BWS, WW Refrigerant circuit Refrigerant R 410 A Fill volume 10.0 Compressor Type Hermetically sealed scroll compressor Permiss. operating pressure, high pressure side Permiss. operating pressure, low pressure side Permiss. operating pressure Primary circuit Secondary circuit Dimensions...

  • Page 7: Dimensions Of Type Bw/Bws, Ww

    Vitocal 300-G (cont.) Dimensions of type BW/BWS, WW < 42 V 230 V < 42 V 230 V 400 V 400 V = 300 Type BWS on the left; type BW/WW on the right VIESMANN VITOCAL 300-G...

  • Page 8: Output Diagrams

    Vitocal 300-G (cont.) Output diagrams Type 121 A Heating output B Refrigerating capacity C Power consumption = 35 °C = 45 °C = 55 °C = 60 °C Heating circuit flow temperature Note Data for the COP was calculated with reference to DIN EN 14511.
  • Page 9 Vitocal 300-G (cont.) Type 129 A Heating output B Refrigerating capacity C Power consumption = 35 °C = 45 °C = 55 °C = 60 °C Heating circuit flow temperature Note Data for the COP was calculated with reference to DIN EN 14511.
  • Page 10 Vitocal 300-G (cont.) Type 145 A Heating output B Refrigerating capacity C Power consumption = 35 °C = 45 °C = 55 °C = 60 °C Heating circuit flow temperature Note Data for the COP was calculated with reference to DIN EN 14511.

  • Page 11: Installation Accessories

    ■ For systems with a brine circuit pump (primary pump) in the brine See chapter "Primary pump". return. ■ Suitable for Viessmann heat transfer medium "Tyfocor" based on ethylene glycol (see chapter "Heat transfer medium"). ■ Brine accessory pack for single and two-stage heat pumps, ther- mally insulated with vapour diffusion-proof material.

  • Page 12: Primary Pump

    BW 129 BW 145 Circulation pump part no. Wilo standard cir- Z007 441 — on-site culation pump, type TOP S 30/7, 400 V~ Wilo standard cir- — Z007 442 culation pump, type TOP S 30/10, 400 V~ VIESMANN VITOCAL 300-G...

  • Page 13: Brine Distributor For Geothermal Collectors

    Can be fitted to the house wall, in the cellar duct or in the central service duct. Components: ■ 2 headers for flow and return ■ Flow and return connections for 10 brine circuits, ball valves and locking ring fittings (PE 20 × 2.0) VIESMANN VITOCAL 300-G...

  • Page 14: Brine Distributor For Geothermal Probes/Geothermal Collectors

    ■ Header for separate flow and return ■ Flow and return connections for 2, 3 or 4 brine circuits, ball valves and locking ring fittings (PE 25 × 2.3 or PE 32 × 2.9) ■ Installation accessories ■ 2 drain & fill valves VIESMANN VITOCAL 300-G...
  • Page 15 Example for 8 brine circuits VL Brine flow RL Brine return VL Brine flow Note For the allocation of brine distributor to heat pump type, see tables in design information, "Heat sources for brine/water heat pumps", pages 37 and 39. VIESMANN VITOCAL 300-G...

  • Page 16: Heat Transfer Medium Tyfocor

    ■ Hose, inlet side (0.5 m) For filling the primary circuit. ■ Connection hose (2 pce, each 2.5 m) ■ Packing crate (can be used as flushing tank) Components: ■ Self-priming impeller pump (30 l/min) ■ Dirt filter, inlet side VIESMANN VITOCAL 300-G...

  • Page 17: Secondary Circuit

    Flow rate in m³/h max. (1) Type E4/E6 Vario 25/180, 230 V~ min. (3) E6 auto E4 auto Flow rate in m³/h Pump rate in m³/h Type E4/E6 Auto 25/180, 230 V~ Type RS 25/6-3, 230 V~ VIESMANN VITOCAL 300-G...

  • Page 18: Safety Equipment Block

    Type Stratos Para (1 - 7 m), 230 V~ Safety equipment block Part no. 7143 779 Components: ■ Safety valve R ½ (blow-off pressure 3 bar) ■ Pressure gauge ■ Automatic air vent valve with automatic shut-off facility ■ Thermal insulation VIESMANN VITOCAL 300-G...

  • Page 19: Cooling

    ■ For wall mounting Fan convector Vitoclima 200-C Type V202H V203H V206H V209H Z004 926 Z004 927 Z004 928 Z004 929 Plinth for floor mounting 7267 205 Air filter (5 pce) 7428 521 7428 522 7428 523 VIESMANN VITOCAL 300-G...
  • Page 20 Max. permiss. ambient temperature °C Max. permiss. media temperature °C Power consumption Rated current Weight Factory-set fan speed Dimensions Front and side view A Plinth (accessory) Type Dimensions in mm V202H V203H 1138 1132 V206H 1508 1502 V209H 1508 1502 VIESMANN VITOCAL 300-G...
  • Page 21 A R.H. B L.H. C Heating return connection D Cooling return connection E Heating flow connection F Cooling flow connection Type Dimensions in mm V202H V203H V206H V209H Position of the hydraulic connections (side view, both sides) VIESMANN VITOCAL 300-G...

  • Page 22: Dhw Heating Via An External Heat Exchanger

    – Reduction of reverberative surfaces, particularly on walls and ceil- the following chapter). ings. Rough structural renders absorb more sound than tiles. – If quietness is a particularly important consideration, apply sound- absorbing material to the walls and ceilings (commercially availa- ble). ■ Hydraulic connections: VIESMANN VITOCAL 300-G...

  • Page 23: Minimum Clearances

    23 m Electrical connections ■ Observe the technical connection requirements specified by your Viessmann heat pumps operate with 400 V~ (in some countries local power supply utility. 230 V models are also available). ■ Your local power supply utility will provide you with details regarding The control circuit requires a power supply of 230 V~.
  • Page 24 BW, WW Heat pump control unit power supply (230 V~) 1.0 m A connecting cable is used for the power sup- Compressor power supply (400 V~) 1.0 m 1.0 m Additional power cables 1.5 m Connecting cable VIESMANN VITOCAL 300-G...
  • Page 25 BW, WW Heat pump control unit power supply (230 V~) 1.0 m A connecting cable is used for the power sup- Compressor power supply (400 V~) 1.0 m 1.0 m Additional power cables 1.5 m Connecting cable VIESMANN VITOCAL 300-G...

  • Page 26: Hydraulic Connections

    Heat pump Heat pump control unit Primary pump Brine accessory pack Pressure switch, primary circuit Brine distributor for geothermal probes/collectors Geothermal probes/collectors Two-stage heat pumps (type BW+BWS) Two primary pumps P Primary circuit interface (see system examples) VIESMANN VITOCAL 300-G...
  • Page 27 Heat pump stage 1 Heat pump control unit Heat pump stage 2 Common primary pump Flow temperature sensor, primary circuit Return temperature sensor, primary circuit Brine accessory pack Pressure switch, primary circuit Brine distributor, geothermal probes/collectors Geothermal probes/collectors VIESMANN VITOCAL 300-G...

  • Page 28: Connections On The Primary Side Water/Water (Stages 1 And 2)

    Separating heat exchanger, primary circuit Flow limiter, well circuit ( (conversion kit standard delivery), remove jumper when connecting) Dirt trap Well pump (suction pump for groundwater; connect via on-site contactor with fuse protection) Delivery well Return well VIESMANN VITOCAL 300-G...
  • Page 29 Flow limiter, well circuit (component of conversion kit; remove jumper when connecting) Dirt trap Primary pump (heat pump stage 2) Well pump (suction pump for groundwater; connection via on-site contactor with fuse protection) Delivery well Return well VIESMANN VITOCAL 300-G...
  • Page 30 Pressure switch, primary circuit Heat exchanger, primary circuit Flow limiter, well circuit (component of conversion kit; remove jumper when connecting) Dirt trap Well pump (suction pump for groundwater; connection via on-site contactor with fuse protection) Delivery well Return well VIESMANN VITOCAL 300-G...

  • Page 31: Connections On Secondary Side For Two-Stage Heat Pumps

    1 and one heat pump connection. stage 2. The electrical connection is made at the heat pump stage 1 via KM BUS at external extension H1 (accessory). VIESMANN VITOCAL 300-G...
  • Page 32 Secondary pump, heat pump stage 2 Circulation pump for cylinder heating (heating water side), heat pump stage 2 Primary pump, heat pump stage 1 Flow temperature sensor, primary circuit Return temperature sensor, primary circuit Primary pump, heat pump stage 2 VIESMANN VITOCAL 300-G...

  • Page 33: System Versions

    Heating cir- cuit M2 Heating cir- cuit M3 Separate cooling circuit 0 Swimming pool water heating Swimming pool (only with external extension Solar DHW heating Solar (only with Vitosolic 100/200) Cascade operation Lead appli- ance Lag heat pump VIESMANN VITOCAL 300-G...

  • Page 34: Sizing The Heat Pump

    Please contact the customer's power supply utility to enquire Low energy house 40 W/m about power-OFF periods. New build (to EnEV) 50 W/m House (built prior to 1995 with standard thermal insu- 80 W/m lation) Older house (without thermal insulation) 120 W/m VIESMANN VITOCAL 300-G...

  • Page 35: Mono-Energetic Operation

    600 to 1200 0.08 to 0.15 30 to 60 1200 to 2400 0.15 to 0.30 Standard demand With a DHW cylinder heat-up time of 8 h. Select a higher supplement if the actual DHW demand exceeds the stated values. VIESMANN VITOCAL 300-G...

  • Page 36: Supplement For Setback Mode

    Every pipe circuit should be able to be isolated individually on the flow and return side to enable the collector to be filled and vented. With a DHW cylinder heat-up time of 8 h. Select a higher supplement if the actual DHW demand exceeds the stated values. VIESMANN VITOCAL 300-G...
  • Page 37 41 on-site 145+145 Two-stage, stages with different output BW+BWS 40.3 1620 49 on-site 32 on-site 24 on-site 121+129 BW+BWS 51.2 2050 62 on-site 41 on-site 31 on-site 121+145 BW+BWS 57.5 2300 69 on-site 46 on-site 35 on-site 129+145 VIESMANN VITOCAL 300-G...
  • Page 38 4 brine distributors are required, additional geothermal col- lector circuits are also required. The brine distributors and geothermal collector circuits must be designed and sized by a specialist contractor (e.g. Viessmann geothermal department or an engineering consul- tancy). Example calculations for sizing the heat source...

  • Page 39: Geothermal Probe

    We recommend arranging the sizing to match the regional conditions and the drilling service to be carried out by the contractor suggested by your local Viessmann sales office. Required geothermal probes and brine distributors at ³ = 50 W/m, probe (to VDI 4640) for 2000 operating hours (estimated sizing) Heat pump type PE 32 ×...

  • Page 40: Expansion Vessel For Primary Circuit

    BW 145 The brine distributors for geothermal probes must be designed and sized by a specialist contractor (e.g. Viessmann geothermal depart- ment or an engineering consultancy). The guide values given above include an additional 20 %.

  • Page 41: Pipework, Primary Circuit

    137.2 201.3 142.7 216.8 246.3 232.3 262.4 247.8 263.3 PE pipe 32 × 2.9 mm, PN 10 278.7 Flow rate R value for Tyfocor 294.2 Pa/m 309.7 31.2 33.3 35.4 37.5 39.5 41.6 43.7 45.8 47.9 49.9 VIESMANN VITOCAL 300-G...
  • Page 42 1960 742.6 18600 1808.4 2000 769.3 PE pipe 40 × 3.7 mm, PN 10 Flow rate R value for Tyfocor Pa/m 1500 165.8 1600 209.6 2000 274.0 2100 305.5 2300 383.6 2400 389.1 2500 404.2 2700 479.5 VIESMANN VITOCAL 300-G...

  • Page 43: Pump Output Supplements (Percentage) For Operation With Tyfocor

    = ² (in %) facturer. ² water Viessmann heat transfer medium "Tyfocor" (ready-mixed for temper- Design residual head atures down to –15 °C) has a ethylene glycol volume ratio of 28.6 °% (in %) water (calculated as 30 %).

  • Page 44: Calculating The Required Groundwater Volume

    For the minimum flow rates, see the heat pump specification (e.g. minimum flow rate for Vitocal 300-G, type WW 121 = 5.2 m /h). Permits for a groundwater/water heat pump system This project requires permission from the "local water authority"...

  • Page 45: Sizing The Heat Exchanger, Primary Circuit/Separating Heat Exchanger

    4 °C be reduced by a maximum of 0.4. We recommend the use of the threaded stainless steel plate heat exchanger from the Viessmann Vitoset pricelist (manufacturer: Tranter AG); see the following selection table. A Water B Brine (antifreeze mixture)

  • Page 46: Central Heating/Central Cooling

    The heat pump reaches a maximum flow temperature of 60 °C. When using radiators or when modernising or replacing boilers, the heat pump can be used, subject to the max. flow temperature of 60 °C being observed. VIESMANN VITOCAL 300-G...

  • Page 47: Cooling Operation

    Heating water buffer cylinders provide hydraulic separation of the flow in the secondary and heating circuits. For example, the flow rate in the secondary circuit remains constant even if the heating circuit flow rate is reduced via thermostatic valves. ■ Longer heat pump operating times VIESMANN VITOCAL 300-G...

  • Page 48: Heating Water Buffer Cylinder For Optimised Runtimes

    ■ Soften fill water with a hardness above 16.8 °dH (3.0 mol/m ), e.g. Regarding the quality and amount of heating water, incl. fill and top-up with the small softening system for heating water (see the water, observe the VDI 2035 [or local regulations]. Viessmann Vitoset pricelist). VIESMANN VITOCAL 300-G...

  • Page 49: Dhw Heating

    ■ Cylinder temperature is below 3 °C (frost protection). ■ Heat pump does not provide any heating output and actual temper- ature has fallen below set temperature at the top cylinder tempera- ture sensor. VIESMANN VITOCAL 300-G...

  • Page 50: Hydraulic Connection, Primary Store System

    WW Domestic hot water Solar interface or external heat source (see system examples) Required equipment Pos. Description DHW cylinder Cylinder temperature sensor Cylinder primary pump (DHW side) Plate heat exchanger Flow limiter Motorised two-way valve, normally closed DHW circulation pump VIESMANN VITOCAL 300-G...
  • Page 51 Description Quantity Part no. Heating lance Z004 280 Cylinder temperature sensor 7170 965 Vitocell 100-L, (750 or 1000 litre capacity) see Viessmann pricelist Cylinder primary pump 7820 403 7820 404 Two-way motorised ball valve (N/C) 7180 573 Flow limiter on-site...
  • Page 52 WW 145 Notes for BW 145, WW 145 In combination with Vitocell 100-L, type CVL, the flow rate of 10.97 m /h cannot be reached. On-site DHW cylinder required. Cylinder primary pump curves See page 22. VIESMANN VITOCAL 300-G...

  • Page 53: Cooling Operation

    Recommendation: Utilise the heat pump power supply from an on- site power distribution board. Hydraulic connection, natural cooling function A Geothermal probe interface B Interface to heat pump primary circuit C Interface to heat pump/heating water buffer cylinder (secondary circuit) φ VIESMANN VITOCAL 300-G...
  • Page 54 ■ Power supply (1/N/PE,230 V/50 Hz) required. ■ When creating wall outlets, consider supports, lintels and sealing elements (e.g. vapour barriers). ■ Only fit appliances to solid level walls. VIESMANN VITOCAL 300-G...
  • Page 55 Recommendation for sizing the cooling system correctly: calculate the cooling heat exchanger. cooling load to VDI 2078. Brine/water heat pumps 13 °C 20 °C 10 °C 12 °C A Cooling circuit primary side (brine) B Cooling circuit secondary side (water) VIESMANN VITOCAL 300-G...

  • Page 56: Swimming Pool Water Heating

    (accessory). mostat (accessory), a demand signal is sent to the heat pump control unit via the external extension H1 (accessory). In the delivered condi- tion, central heating and DHW heating have priority over swimming pool water heating. VIESMANN VITOCAL 300-G...

  • Page 57: Sizing The Plate Heat Exchanger

    (in the solar return) is greater than the start temperature differential set at the solar control unit. VIESMANN VITOCAL 300-G...

  • Page 58: Sizing The Solar Expansion Vessel

    Part no. Capacity Ø a Connection Weight 7248 241 R ¾" 7248 242 R ¾" 7248 243 R ¾" 7248 244 12.3 7248 245 18.4 Details regarding the calculation of the required volume see "Vitosol" technical guide. VIESMANN VITOCAL 300-G...

  • Page 59: Heat Pump Control Unit 4. 1 Vitotronic 200, Type Wo1A

    ■ Displaying: – Flow temperature – DHW temperature – Information – Operating details – Diagnostic details – Information, warning and fault messages Time switch Digital time switch ■ Individual and 7-day program ■ Automatic summer/winter time changeover VIESMANN VITOCAL 300-G...

  • Page 60: Setting The Operating Programs

    The flow temperature required to reach a specific room temperature depends on the heating system and the thermal insulation of the build- ing to be heated or cooled. Adjusting the heating or cooling curves matches the flow temperatures to these conditions. Outside temperature in °C VIESMANN VITOCAL 300-G...

  • Page 61: Heating Systems With Heating Water Buffer Cylinder Or Low Loss Header

    – during storage and transport –20 to +65 °C Setting range for the DHW temperature 10 to +70 °C Heating and cooling curves setting range – Slope 0 to 3.5 – Level –15 to +40 K VIESMANN VITOCAL 300-G...

  • Page 62: Control Unit Accessories

    Contactor relay Part no. 7814 681 Specification Contactor in small casing. Coil voltage 230 V~/50 Hz With 4 N/C and 4 N/O contacts. Rated current (I AC1 16 A With terminal strip for earth conductors. AC3 9 A VIESMANN VITOCAL 300-G...

  • Page 63: Contact Temperature Sensor As System Flow Temperature Sensor

    Breaking capacity 10(2) A 250 V~ Switching function with rising temperature from 2 to 3 Stainless steel sensor well R½ x 200 mm Contact temperature sensor Part no. 7183 288 For capturing the flow and return temperature. VIESMANN VITOCAL 300-G...

  • Page 64: Mixer Motor

    IP 32D to EN 60529 ensure through appropriate Components: design/installation ■ Mixer PCB with mixer motor for Viessmann mixer DN 20 to 50 and Protection class R ½ to 1¼ Permissible ambient temperature ■ Flow temperature sensor (contact temperature sensor), lead length –...

  • Page 65: Extension Kit For One Heating Circuit With Mixer For Separate Mixer Motor

    Mixer PCB Secured with a tie. Specification IP rating IP 32D to EN 60529 ensure through appropriate design/installation Sensor type Viessmann NTC 10 kΩ at Specification 25 °C Rated voltage 230 V~ Permissible ambient temperature Rated frequency 50 Hz – during operation 0 to +120 °C...

  • Page 66: Vitotrol 200A

    Installation in the room to be cooled on an internal wall, opposite radi- ators/heat sinks. Never install inside shelving units, in recesses, or immediately by a door or heat source (e.g. direct sunlight, fireplace, TV set, etc.). VIESMANN VITOCAL 300-G...

  • Page 67: Km Bus Distributor

    ■ Power supply cable with Euro plug (2.0 m long) ■ GSM aerial (3.0 m long), magnetic foot and adhesive pad Functions: ■ KM BUS cable (3.0 m long) ■ Remote switching via GSM mobile phone networks ■ Remote scanning via GSM mobile phone networks VIESMANN VITOCAL 300-G...

  • Page 68: Vitocom 300, Type Fa5, Fi2, Gp2

    16 M BUS capable heat meters with M BUS slave interface to EN 1434-3 – see the standard module for dimensions 7143 432 Uninterruptible power supply unit (UPS) Mounting rail installation TS35 to DIN EN 50 022, 35 x 15 and 35 x 7.5. VIESMANN VITOCAL 300-G...

  • Page 69: Lon Communication Module

    30 V–, max. 2 A Installation spacing 14 to 900 m with plug-in connec- – 2 analogue inputs AE 1 and AE 2 For Viessmann Ni500 tem- perature sensors, 10 to 127 – 2 LON plug-in connectors RJ45 7199 251 ºC ±0.5 K...

  • Page 70: Viesmann Vitocal 300-G

    Part no. 7171 784 – 2-core cable, CAT 5, screened on-site JY(St) Y 2 x 2 x 0.8 on-site Terminator Part no. 7143 497 To terminate the LON BUS at the first and last LON user. 2 pce VIESMANN VITOCAL 300-G...

  • Page 71: Keyword Index

    Electrical connections..............23 KM BUS distributor................67 Electrical demand................22 Electricity meter................23 EnEV....................59 LON....................69 Ethylene glycol.................36 LON communication module............69 Expansion vessel ■ Calculating the volume..............58 ■ Primary circuit................40 ■ Solar....................58 ■ Structure, function, specification...........58 External extension H1..............67 External heat source................35 VIESMANN VITOCAL 300-G...
  • Page 72 Solar expansion vessel..............58 Solar swimming pool water heating..........58 Solar thermal system...............57 Specification..................5 Standard delivery................4 Standard heat load of the building...........34 Supplement for DHW heating............35 Supplement for setback mode............36 Supply well..................44 Swimming pool water heating............56 System separation................44 System versions................33 VIESMANN VITOCAL 300-G...
  • Page 73 VIESMANN VITOCAL 300-G...
  • Page 74 VIESMANN VITOCAL 300-G...
  • Page 75 VIESMANN VITOCAL 300-G...
  • Page 76 Subject to technical modifications. Viessmann Werke GmbH&Co KG Viessmann Limited D-35107 Allendorf 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 VIESMANN VITOCAL 300-G...

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