Viessmann Vitocal 300-A Series Installation And Service Instructions Manual
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Viessmann Vitocal 300-A Series Installation And Service Instructions Manual

Viessmann Vitocal 300-A Series Installation And Service Instructions Manual

Air/water heat pump with electric drive
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VIESMANN
Installation and service
instructions
for contractors
Vitocal 300-A
Type AWCI-M-AC 301.A
Type AWO-M-AC 301.A
Air/water heat pump with electric drive, 230 V~
For applicability, see the last page
VITOCAL 300-A
Please keep safe.
5692 875 GB
7/2011

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Summary of Contents for Viessmann Vitocal 300-A Series

  • Page 1 VIESMANN Installation and service instructions for contractors Vitocal 300-A Type AWCI-M-AC 301.A Type AWO-M-AC 301.A Air/water heat pump with electric drive, 230 V~ For applicability, see the last page VITOCAL 300-A Please keep safe. 5692 875 GB 7/2011...

  • Page 2: Safety Instructions

    Safety instructions Safety instructions Please follow these safety instructions closely to prevent accidents and mate- rial losses. Safety instructions explained ■ The Code of Practice of relevant trade associations Danger ■ All current safety regulations as This symbol warns against the defined by DIN, EN, DVGW, VDE and risk of injury.
  • Page 3 Please note Repairing components that fulfil a safety function can compromise the safe operation of your sys- tem. Replace faulty components only with original Viessmann spare parts. Auxiliary components, spare and wearing parts Please note Spare and wearing parts that...

  • Page 4: Table Of Contents

    Index Index Installation instructions Preparing for installation Product information....................General information - electrical connection............Internal heat pump, type AWCI-M-AC 301.A............External heat pump type AWO-M-AC 301.A............14 Overview of possible system schemes..............24 System example 1, ID: 4605093_1006_01............25 System example 2, ID: 4605305_1006_01............33 DHW heating......................
  • Page 5 Index Index (cont.) Certificates Declaration of conformity..................148 Keyword index....................149...

  • Page 6: Preparing For Installation

    Preparing for installation Product information Type AWCI-M-AC 301.A Reversible air/water heat pump with inte- gral circulation pump (secondary pump), 3-way diverter valve and safety assem- bly. Type AWO-M-AC 301.A Air/water heat pump without integral cir- The 4 red cores in the heat pump control culation pump (secondary pump) or 3- unit must be removed for the external way diverter valve.

  • Page 7: Internal Heat Pump, Type Awci-M-Ac 301.A

    Preparing for installation Internal heat pump, type AWCI-M-AC 301.A Installation room requirements Please note Please note Incorrect ambient conditions can Overloading the floor can result in lead to system damage and can building damage. put safe operation at risk. Observe the permissible floor ■...
  • Page 8 Preparing for installation Internal heat pump, type AWCI-M-AC 301.A (cont.) Siting Minimum clearances and dimensions for installation in corners Discharge side on the left (delivered condition); hydraulic connections on the right (on site) A Wall outlet, discharge side C Plaster finish B Wall outlet, intake side D Top edge, finished floor level...
  • Page 9 Preparing for installation Internal heat pump, type AWCI-M-AC 301.A (cont.) C D E Discharge side on the left (delivered condition); hydraulic connections on the right (on site) A External render D Compression sealing strip and B Wall acrylic airtight seam (all-round) E PU foam (all-round) C Wall outlet (EPP, can be trimmed to F Plaster finish/wall coating...
  • Page 10 Preparing for installation Internal heat pump, type AWCI-M-AC 301.A (cont.) Minimum clearances and dimensions for installation against the wall Discharge side on the left (delivered condition); hydraulic connections on the right (on site) A Wall outlet on the discharge side F Heat pump (made of EPP) G Appliance connector, air duct, dis-...
  • Page 11 Preparing for installation Internal heat pump, type AWCI-M-AC 301.A (cont.) Number of Total length of duct Clearance X in mm Partition C duct parts parts in mm required 1000 1050 1350 1400 1700 1750 2050 2100 2400 2450 2750 2800 3100 3150 3450...
  • Page 12 Preparing for installation Internal heat pump, type AWCI-M-AC 301.A (cont.) Connections Note ■ Air discharge optionally on the l.h. or r.h. side. ■ Hydraulic lines and condensate drain can be routed from the heat pump on the l.h. or r.h. side. They are always fitted on the opposite side to the air discharge. ■...
  • Page 13 Preparing for installation Internal heat pump, type AWCI-M-AC 301.A (cont.) Cables A Heat pump control unit G Instantaneous heating water heater B Power cable for heat pump control (accessory) unit 230 V/50 Hz H Control panel K Internal heat pump Recommended cable: 3 x 1.5 mm (5 x 1.5 mm with power-off by the...

  • Page 14: External Heat Pump Type Awo-M-Ac 301.A

    Preparing for installation External heat pump type AWO-M-AC 301.A Positioning requirements ■ Provide a manual drain of the heating ■ Never install the heat pump next to liv- water flow and return lines in any area ing rooms or bedrooms. at risk from frost.
  • Page 15 Preparing for installation External heat pump type AWO-M-AC 301.A (cont.) Siting Minimum clearances 1500 1500 Foundations Site the heat pump horizontally on a per- ■ Drain all condensate derived from the manently solid surface. We recommend air (subject to temperature and relative laying concrete foundations as shown in humidity up to 20 l/h) via a DN 40 drain the following diagrams.
  • Page 16 Preparing for installation External heat pump type AWO-M-AC 301.A (cont.) Foundation dimensions 1080 Plan view of the foundations...
  • Page 17 Preparing for installation External heat pump type AWO-M-AC 301.A (cont.) A Installation area of the heat pump on D Soft ground, gravel or crushed stone concrete foundations E Foundation recess for routing the B Concrete foundations, consisting of: lines for heating water flow and ■...
  • Page 18 Preparing for installation External heat pump type AWO-M-AC 301.A (cont.) A Concrete foundations as previously E Connecting cables (LV and control described and according to local cables) and power cable to the con- requirements and in accordance trol panel F Condensate drain with the standard rules of building engineering B Frost protection (compacted...
  • Page 19 Preparing for installation External heat pump type AWO-M-AC 301.A (cont.) Connections 1380 Side view, shown without silencer hood. Note Cable entries are cut into the sealing mat in the floor panel on site (see page 67).
  • Page 20 Preparing for installation External heat pump type AWO-M-AC 301.A (cont.) A Condensate drain C Secondary circuit return (DHW cyl- B Secondary circuit flow (DHW cylin- inder/heating water return; for instal- der/heating water flow; for installa- lation see page 60) D Silencer hoods (for installation see tion see page 60) page 55) Cables and hydraulic lines...
  • Page 21 Preparing for installation External heat pump type AWO-M-AC 301.A (cont.) A Clearance, house wall – founda- I Moisture-proof and waterproof wall tions: ducts (on site) J Drain & fill facility (for draining with ■ Max. clearance subject to the length of the connecting cables compressed air) and hydraulic connection lines, K Expansion vessel with safety...
  • Page 22 Preparing for installation External heat pump type AWO-M-AC 301.A (cont.) Power cable to control panel B Routing KG conduits Outside the building, run the power cable ■ Provide a wire pull for connecting cables D. to control panel B as an earth cable (NYY), or route a NYM cable inside a KG ■...
  • Page 23 Preparing for installation External heat pump type AWO-M-AC 301.A (cont.) Required cables and hydraulic lines B Power cable for compressor/fan Q Instantaneous heating water heater (230 V/50 Hz; 1/N/PE) (accessory; install in building) R Secondary circuit flow temperature Recommended cable: 3 x 4.0 mm sensor (install in the heating water flexible flow inside the building)

  • Page 24: Overview Of Possible System Schemes

    Preparing for installation External heat pump type AWO-M-AC 301.A (cont.) U Instantaneous heating water heater Y Power cable for heat pump control control unit 230 V/50 Hz Recommended cable: 5 x 1.5mm Recommended cable: 3 x 1.5 mm V Power cable, instantaneous heating (5 x 1.5 mm with power-off by the water heater (if installed), max.

  • Page 25: System Example 1, Id: 4605093_1006_01

    Preparing for installation Overview of possible system schemes (cont.) Components "System scheme 7000" Heating circuit A1/HC1 – – – – – – M2/HC2 – – – – M3/HC3 – – – – – – – – DHW cylinder – – –...
  • Page 26 Preparing for installation System example 1, ID: 4605093_1006_01 (cont.) Note ■ The hydraulic scheme is shown with one Vitocal 300-A, type AWO-M-AC 301.A: The secondary pump, circula- tion pump for cylinder heating and instantaneous heating water heater (accessory) are installed outside the appliance.
  • Page 27 Preparing for installation System example 1, ID: 4605093_1006_01 (cont.) Hydraulic installation scheme -8/145- -8/145- -8/145- -2/X3.8;X3.9- --2/F12-- --2/225.1--76-- --105/2-- --74/20-- --105/20-- --2/225.2;3-- --105/52-- ---47/R1-- -2/X3.8;X3.9- -2/211.5- --2/212.3-- -2/211.4- --2/F8-- --A/137-- --47/R2-- Note: This scheme is a basic example without shut-off devices or safety equipment. This does not replace the need for local engineering.
  • Page 28 Preparing for installation System example 1, ID: 4605093_1006_01 (cont.) Required equipment Pos. Designation Heat pump Vitotronic 200 heat pump control unit with connecting cables Outside temperature sensor Instantaneous heating water heater, 3, 6, or 9 kW (accessory) Type AWCI-M-AC 301.A: 3-way diverter valve for "Central heating/DHW heating"...
  • Page 29 Preparing for installation System example 1, ID: 4605093_1006_01 (cont.) Pos. Designation Heating water buffer cylinder Heating water buffer cylinder Buffer temperature sensor System flow temperature sensor Heating/cooling circuit with mixer M2/HC2 Underfloor heating circuit with directly controlled mixer motor Vitotrol 200A remote control Flow temperature sensor Temperature limiter to limit the maximum temperature of underfloor heating systems...
  • Page 30 Preparing for installation System example 1, ID: 4605093_1006_01 (cont.) 100 W 212.2 UP A1 X2.N 130 W 211.4 UPSB X2.N X3.8 X3.9 <16A X3.18 X2.1 230 V / 50 Hz X1.1 50 W 212.3 X2.N 211.2 X2.N 211.3 230 V / 50 Hz 224.4 X2.N <10 W...
  • Page 31 Preparing for installation System example 1, ID: 4605093_1006_01 (cont.) HK A1 HK M3 HK M2 230 V/ 50 Hz 1 / N / PE UP M3 VTS M3 230 V/ 50 Hz N 20 N 18...
  • Page 32 Preparing for installation System example 1, ID: 4605093_1006_01 (cont.) PT500 PT500 PT500 Ni500 Ni500 VTS M2 PT500 <32 A 230 V/ 50 Hz Required parameter settings Set the required parameters during commissioning; see from page 110. Parameter Setting "System definition" ■...

  • Page 33: System Example 2, Id: 4605305_1006_01

    Preparing for installation System example 1, ID: 4605093_1006_01 (cont.) Parameter Setting Instantaneous heating water heater (accessory): "Electr booster heater" ■ "Enable instantaneous heating water heater "1" 7900" ■ "Enable instant. heating water heater for central "0" or "1" heating 7902" "Solar"...
  • Page 34 Preparing for installation System example 2, ID: 4605305_1006_01 (cont.) Note ■ The hydraulic scheme is shown with one Vitocal 300-A, type AWO-M-AC 301.A: The secondary pump and the circulation pump for cylinder heating are installed outside the appliance. ■ With type AWCI-M-AC 301.A, the secondary pump and 3-way diverter valve for "Central heating/DHW heat- ing"...
  • Page 35 Preparing for installation System example 2, ID: 4605305_1006_01 (cont.) Hydraulic installation scheme -8/145- -8/145- -8/145- --2/F16-- --2/F14-- --2/F12-- --105/2-- --2/225.1-- --74/20-- --105/20-- --105/52-- --2/225.2;3-- --2/F13-- --2/211.5-- ---114/50-- -2/212.3- -2/211.4- -2/224.7- --2/F8-- -2/224.6- -2/222.4- -2/211.2- 33 --2/224.6-- Note: This scheme is a basic example without shut-off devices or safety equipment. This does not replace the need for local engineering.
  • Page 36 Preparing for installation System example 2, ID: 4605305_1006_01 (cont.) Required equipment Pos. Designation Heat pump Vitotronic 200 heat pump control unit with connecting cables Outside temperature sensor Type AWCI-M-AC 301.A: 3-way diverter valve for "Central heating/DHW heating" Type AWO-M-AC 301.A: Circulation pump for cylinder heating Secondary pump Flow temperature sensor (integrated in the appliance for type AWCI-M-AC 301.A)
  • Page 37 Preparing for installation System example 2, ID: 4605305_1006_01 (cont.) Pos. Designation Heating circuit with mixer M2/HC2 Underfloor heating circuit with directly controlled mixer motor Vitotrol 200A remote control Flow temperature sensor Temperature limiter to limit the maximum temperature of underfloor heating systems ■...
  • Page 38 Preparing for installation System example 2, ID: 4605305_1006_01 (cont.) <10 W 211.5 X2.N 100 W 212.2 UP A1 X2.N 130 W 211.4 X2.N 50 W 212.3 X2.N 211.2 X2.N 211.3 230 V / 50Hz 224.4 X2.N 100 W 224.7 X2.N 130 W 224.6 X2.N...
  • Page 39 Preparing for installation System example 2, ID: 4605305_1006_01 (cont.) HK A1 HK M2 HK M3 230 V/ 50 Hz 1 / N / PE UP M3 VTS M3 230 V/ 50 Hz 1 / N / PE 230 V, 50 Hz...
  • Page 40 Preparing for installation System example 2, ID: 4605305_1006_01 (cont.) PT500 PT500 PT500 PT500 Ni500 PT500 VTS M2 Ni500 Ni500 Ni500 <32 A 230 V/ 50 Hz Required parameter settings Set the required parameters during commissioning; see from page 110. Parameter Setting "System definition"...

  • Page 41: Dhw Heating

    Preparing for installation System example 2, ID: 4605305_1006_01 (cont.) Parameter Setting "External heat source" ■ "Enable external heat source 7B00" "1" ■ "Enable external heat source for DHW heating "1" 7B0D" Remote controls (accessories): "Heating circuit 1" ■ "Remote control 2003" "1"...
  • Page 42 Preparing for installation DHW heating (cont.) DHW cylinder with internal indirect coil Hydraulic installation scheme Heat pump interface WW DHW KW Cold water Required equipment Pos. Designation DHW cylinder EHE immersion heater (appliance and control equipment on site. Only use as an alternative to the instantaneous heating water heater or external heat source for DHW reheating) DHW circulation pump (optional)
  • Page 43 Preparing for installation DHW heating (cont.) Electrical installation scheme 50 W 212.3 X2.N 130 W 211.4 UPSB X2.N L1 L1 L1 N N N 224.7 X2.N PT500 PT500 Required parameter settings Set the required parameters during commissioning; see from page 110. Parameter Setting "System definition"...
  • Page 44 Preparing for installation DHW heating (cont.) Cylinder with primary store system Hydraulic installation scheme Heat pump interface WW DHW KW Cold water Required equipment Pos. Designation Cylinder EHE immersion heater (appliance and control equipment on site. Only use as an alternative to the instantaneous heating water heater or external heat source for DHW reheating.) DHW circulation pump (optional) Cylinder temperature sensor, top...
  • Page 45 Preparing for installation DHW heating (cont.) Electrical installation scheme 50 W 212.3 X2.N 130 W 211.4 UPSB X2.N L1 L1 L1 N N N 224.7 X2.N 224.6 X2.N PT500 PT500 Required parameter settings Set the required parameters during commissioning; see from page 110. Parameter Setting "System definition"...

  • Page 46: Installation Sequence

    Installation sequence Removing the transport brackets Please note Please note Prevent damage to the appliance Transport brackets during handling. must be removed. Never put weight on the top, front or side panels of the appliance. Please note Tilting the compressor at a steep angle inside the heat pump can result in appliance damage.
  • Page 47 Installation sequence Removing the transport brackets (cont.)

  • Page 48: Fitting The Outer Panels

    Installation sequence Fitting the outer panels Installation using type AWCI-M-AC 301.A as an example. Note ■ Steps 4 and 5 are only required for type AWCI-M-AC 301.A. ■ For type AWO-M-AC 301.A: Fit silencer hoods before the top panel. Fitting the silencer hoods: see the fol- lowing chapter.
  • Page 49 Installation sequence Fitting the outer panels (cont.)
  • Page 50 Installation sequence Fitting the outer panels (cont.) Installation of side panels with air discharge on the l.h. side (delivered condi- tion for type AWCI-M-AC 301.A)
  • Page 51 Installation sequence Fitting the outer panels (cont.) Installation of the side panels with air discharge on the r.h. side Note To facilitate installation, apply a soapy solution to the edges of the side panel insu- lation.
  • Page 52 Installation sequence Fitting the outer panels (cont.)
  • Page 53 Installation sequence Fitting the outer panels (cont.)
  • Page 54 Installation sequence Fitting the outer panels (cont.) Note Fitting the silencer hoods: see the fol- For type AWCI-M-AC 301.A, the silencer lowing chapter. hoods are fitted before fitting the top panel.

  • Page 55: Fitting The Silencer Hoods (Only Type Awo-M-Ac 301.A)

    Installation sequence Fitting the silencer hoods (only type AWO-M-AC 301.A)

  • Page 56: Siting The Heat Pump

    Installation sequence Siting the heat pump Connecting the primary circuit (only type AWCI-M-AC 301.A) See also installation information from 1. Centre the wall outlets in the wall cut- page 8. outs and plaster them in correctly. Note 2. Finish off the external part of the ven- Make the ventilation and extract air aper- tilation and extract air ducts with tures burglar-proof.
  • Page 57 Installation sequence Siting the heat pump (cont.) Type AWCI-M-AC 301.A:...
  • Page 58 Installation sequence Siting the heat pump (cont.) Type AWO-M-AC 301.A:...

  • Page 59: Connecting The Heating Circuits And Condensate Drain

    Installation sequence Connecting the heating circuits and condensate drain Note ■ In underfloor heating circuits, integrate a temperature limiter on site for limiting the maximum temperature of under- floor heating systems. ■ To ensure the minimum flow rate (see specification), fit an overflow valve in every heating circuit (except single pipe heating circuits).
  • Page 60 Installation sequence Connecting the heating circuits and condensate… (cont.) C Heating water flow D Heating water return/DHW cylinder return Route condensate drain hose B out of the heat pump and connect via a siphon (backup level at least 60 mm) to the on-site drain outlet. Technical guide Type AWO-M-AC 301.A 1.
  • Page 61 Installation sequence Connecting the heating circuits and condensate… (cont.) 4. Route condensate drain D out of the 5. Route hydraulic lines A and C out heat pump in such a manner that it of the heat pump and connect with does not contact hot, vibrating or the lines in the foundations duct.
  • Page 62 Installation sequence Connecting the heating circuits and condensate… (cont.) 1. Fit pipe section with sensor well A. 3. Connect sensor lead plug D and lead to the heat pump control unit. 2. Secure flow temperature sensor for (Lead with plug, 2.0 m long; extend secondary circuit C with spring clip on site if required).

  • Page 63: Electrical Connections In The Control Panel

    Installation sequence Electrical connections in the control panel Opening the control panel A Control panel with electric compo- B Internal earth conductor nents 1. Undo 2 screws at the bottom of the Note control panel cover. In the delivered condition, the coding card is affixed inside the control panel.
  • Page 64 Installation sequence Electrical connections in the control panel (cont.) Overview of electrical connections in the control panel A Fan fuse 6.3 A (slow) B Compressor contactor Mains terminals (230 V~) for com- pressor and fan with contact shield C Distributor PCB and power-OFF seal if required D Terminal for connecting lead: LV L Full wave soft starter...
  • Page 65 Installation sequence Electrical connections in the control panel (cont.) Routing cables to the control panel Danger Route cables so that they cannot Damaged cable insulation can touch very hot, vibrating or sharp- cause injury and damage to the edged components. appliance.
  • Page 66 Installation sequence Electrical connections in the control panel (cont.) Cable entry from the right ¨ A One cable entry each for LV leads E Cable bracket (cables secured with and 230 V~ cables cable ties) B Mains terminals F Connecting cables with plugs: LV C Power cable 230 V~ with cable fit- lead (<...
  • Page 67 Installation sequence Electrical connections in the control panel (cont.) Type AWO-M-AC 301.A ¨ A Sealing mat (for cable entry from F Connecting cables with plugs: LV below) lead (< 42 V) and control cable B Mains terminals (230 V~) from the heat pump control C Power cable 230 V~ with cable fit- unit ting...
  • Page 68 Installation sequence Electrical connections in the control panel (cont.) 1. Type AWCI-M-AC 301.A: 4. Push the connecting leads/cables Route the 230 V~ cables through one (LV lead < 42 V and control cable cable entry, and the LV lead through 230 V~) from the heat pump control the other cable entry in the l.h.
  • Page 69 Installation sequence Electrical connections in the control panel (cont.) Attaching the connecting cables from the control unit in the con- trol panel < 42 V 230 V~ X14.6 1. Remove cover A.
  • Page 70 Installation sequence Electrical connections in the control panel (cont.) 2. Route cables B and F through the 7. Secure connecting cables B and entry in the control panel and plug in F with 4 cable ties E to bracket strain relief fittings. 3.

  • Page 71: Electrical Connections In The Heat Pump Control Unit

    Installation sequence Electrical connections in the heat pump control unit Fitting the heat pump control unit and inserting cables Wall mounting base and casing base, fitting...
  • Page 72 Installation sequence Electrical connections in the heat pump control… (cont.) Fitting the casing front A Cross connect PCB C Casing front B ON/OFF switch plug-in connection D Controller and sensor PCB...
  • Page 73 Installation sequence Electrical connections in the heat pump control… (cont.) Heat pump control unit, open...
  • Page 74 Installation sequence Electrical connections in the heat pump control… (cont.) Cables, inserting and applying strain relief A Cables with moulded strain relief B On-site cables/leads...
  • Page 75 Installation sequence Electrical connections in the heat pump control… (cont.) Attaching cables from the control panel in the control unit A Cross connect PCB D Connecting cable (control cable B Controller and sensor PCB 230 V~) C Connecting lead (LV lead < 42 V) Adapting the heat pump control unit for type AWO-M-AC 301.A For type AWO-M-AC 301.A, the secon- dary pump, the circulation pump for cyl-...
  • Page 76 Installation sequence Electrical connections in the heat pump control… (cont.) The red cores connect with the following terminals: A X6.6 — 211.2 C X6.2 — 211.3 B X6.4 — 211.4 D X6.1 — 224.4 To adapt the wiring, remove all 4 red Please note cores.
  • Page 77 Installation sequence Electrical connections in the heat pump control… (cont.) A Coding card B Controller and sensor PCB...
  • Page 78 Installation sequence Electrical connections in the heat pump control… (cont.) Overview of electrical connections Note ■ Route 230 V~ cables and LV cables separately and bundle them tightly together at the terminals. This ensures that, in case of failure, for example when detaching a wire, the wires can- not drift into the adjacent voltage area.
  • Page 79 Installation sequence Electrical connections in the heat pump control… (cont.) sYA sYS A Cross connect PCB C Expansion PCB F1 Fuse 6.3 A (slow) D Controller and sensor PCB B Main PCB F3 Fuse 6.3 A (slow)
  • Page 80 Installation sequence Electrical connections in the heat pump control… (cont.) Main PCB Information regarding the connection If the total output is < 1000 W, the indi- values vidual output of a component (e.g. ■ The output given is the recommended pump, valve, messaging facility, con- connected load.
  • Page 81 Installation sequence Electrical connections in the heat pump control… (cont.) Plug sYA Terminals Function Explanation 211.3 Instantaneous heating Connection values: water heater control, ■ Output: 10 W stage 1 ■ Voltage: 230 V~ ■ Max. switching current: 4(2) A Connect on site (see installation instruc- tions for instantaneous heating water heater and control module).
  • Page 82 Installation sequence Electrical connections in the heat pump control… (cont.) Plug sYS Terminals Function Explanation 212.2 Heating circuit pump for ■ If a heating water buffer cylinder is heating circuit without mixer installed, this pump will be installed in A1/HC1 addition to the secondary pump.
  • Page 83 Installation sequence Electrical connections in the heat pump control… (cont.) Connection A to Circulation pump C control unit Heating circuit without mixer A1/HC1 ■ Without heating water buffer cylin- 211.2 Secondary pump ■ With heating water buffer cylinder 212.2 Heating circuit pump A1/ Heating circuit with mixer M2/HC2 225.1 Heating circuit pump M2/HC2...
  • Page 84 Installation sequence Electrical connections in the heat pump control… (cont.) Expansion PCB Information regarding the connection If the total output is < 1000 W, the indi- values vidual output of a component (e.g. ■ The output given is the recommended pump, valve, messaging facility, con- connected load.
  • Page 85 Installation sequence Electrical connections in the heat pump control… (cont.) Plug sXS Terminals Function Explanation 222.3 Switching external heat Zero volt contact 222.4 source with two high limit safety cut-outs (max. 70 °C) Note to protect the heat pump and ■...
  • Page 86 Installation sequence Electrical connections in the heat pump control… (cont.) C Connection on the external heat High limit safety cut-out for heat pump in conjunction with an external source at terminals for external heat source demand D High limit safety cut-out (max. 70 °C) as heat pump protection X3.1 K1 Relay;...
  • Page 87 Installation sequence Electrical connections in the heat pump control… (cont.) Central fault message 223.1 230 V~, 0.5 A 223.2 A Terminals on extension PCB Plug sXF Terminals Function Explanation 224.4 Control of instantaneous Connection values: heating water heater, ■ Output: 10 W stage 2 ■...
  • Page 88 Installation sequence Electrical connections in the heat pump control… (cont.) Immersion heater (230 V~, on site) 224.7 X2.N A Immersion heater, power supply B Terminals of the heat pump control 1/N/PE 230 V/50 Hz unit...
  • Page 89 Installation sequence Electrical connections in the heat pump control… (cont.) Plug sXG Terminals Function Explanation 225.1 Heating circuit pump of the Connect the temperature limiter in series heating circuit with mixer as maximum temperature limiter for M2/HC2 underfloor heating circuit (if installed). Connection values: ■...
  • Page 90 Installation sequence Electrical connections in the heat pump control… (cont.) Terminals Function Explanation ■ Power supply terminals Terminals for message and safety connec- of the control unit "L1" tions and auxiliary compo- nents Note ■ Switched phase L1: Switched phase can be used for on-site X3.1, X3.2, X3.3, X3.7, system components.
  • Page 91 Installation sequence Electrical connections in the heat pump control… (cont.) Terminals Function Explanation Note ■ No parameters need to be set. ■ The compressor is shut down "hard" as soon as the contact opens. ■ The supply voltage to the relevant com- ponents (subject to power supply utility) is switched off by the power-OFF contact signal.
  • Page 92 Installation sequence Electrical connections in the heat pump control… (cont.) Terminals Function Explanation X3.12 Signal "External demand" Requires zero volt N/O contact: X3.13 (external starting of com- ■ Closed: Demand or at exter- pressor and pumps, mixer ■ Open: No demand nal exten- in control operation or ■...
  • Page 93 Installation sequence Electrical connections in the heat pump control… (cont.) Plug Sensors/connections Type (PTC) Outside temperature sensor; connect on site Ni500 Buffer temperature sensor, top; connect on site Pt500 (X5.6/X5.7) Cylinder temperature sensor, top; connect on site Pt500 (X6.1/X6.2) Cylinder temperature sensor, bottom; connect on site Pt500 (X6.1/X6.3) Secondary circuit flow temperature sensor...
  • Page 94 Installation sequence Electrical connections in the heat pump control… (cont.) Plug Sensors/connections Type (PTC) Connection of the LON communication module (plug in – on site, see LON communication module installation instructions) Coding card slot (plug in on site; see page 76) –...
  • Page 95 Installation sequence Electrical connections in the heat pump control… (cont.) fÖ L1 N gÖ A Connection to controller and sensor E Fuses and contactor for circulation pump for swimming pool heating B External extension H1 (accessory) F Circulation pump for swimming pool C Temperature controller for regulat- heating (accessory) ing the swimming pool temperature...
  • Page 96 Installation sequence Electrical connections in the heat pump control… (cont.) X3.10 X3.11 230V 223.1 fÖ 223.2 230V 223.1 223.2 230V sÖ 223.1 223.2 A Heat pump 1 (lead appliance) E Lag heat pump 1 Connection at contact for "External B KM BUS demand "...

  • Page 97: Power Supply

    Installation sequence Electrical connections in the heat pump control… (cont.) G Lag heat pump 2 K Lag heat pump 3 Connection at contact for "External L Central fault message input, lag demand " heat pump H Zero volt contact "External demand N/C contact X3.10 / X3.11 triggers a "...
  • Page 98 Installation sequence Power supply (cont.) Danger ■ The heat pump control unit/PCB Incorrect core allocation can must be supplied without blocking by cause severe injuries and dam- the power supply utility; tariffs that are age to the appliance. subject to possible shutdown must not Never interchange cores "L"...
  • Page 99 Installation sequence Power supply (cont.) ■ Max. fuse rating 16 A ■ Standard tariff (no optional economy tariff with power-OFF for the heat pump control unit) ■ Recommended cable: 3 x 1.5 mm (5 x 1.5 mm with power-OFF for the compressor/instantaneous heating water heater) Compressor power supply (230 V~), sealing economy tariff con-...
  • Page 100 Installation sequence Power supply (cont.) 1. Remove contact shield C. 2. Route 230 V~ power cable through cable fitting B and apply strain relief. 3. Connect cores to power supply ter- minals A in the control panel. 1 / N / PE 4.
  • Page 101 Installation sequence Power supply (cont.) Service instructions for Vitotronic Note 200 heat pump control unit Observe the technical connection condi- tions of the relevant power supply util- ity. X3.7 X3.6 ≈ Diagram excluding fuses and RCD. A Heat pump control unit (connection D High tariff meter on cross connect PCB) E Ripple control receiver (contact...
  • Page 102 Installation sequence Power supply (cont.) Power-OFF with on-site load discon- Note nection Observe the technical connection condi- tions of the relevant power supply util- The power-OFF signal is connected to ity. the on-site contactor of the economy tar- iff power supply and in the heat pump control unit.

  • Page 103: Closing The Heat Pump

    Installation sequence Power supply (cont.) G Ripple control receiver (contact H Economy tariff meter open: power-OFF enabled) with K TNC system feed backup fuse Closing the heat pump Closing the control panel...
  • Page 104 Installation sequence Closing the heat pump (cont.) Fitting the front panel 2. 2.

  • Page 105: Commissioning, Inspection, Maintenance

    Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance For further information regarding the individual steps, see the page indicated Commissioning steps Inspection steps Maintenance steps Page • • • 1. Opening the heat pump............ 106 • 2. Writing reports..............107 •...

  • Page 106: Further Details Regarding The Individual Steps

    Commissioning, inspection, maintenance Further details regarding the individual steps Opening the heat pump Danger 1. Remove the front panels in reverse Contact with 'live' components order; see page 104. can lead to serious injury from electric current. 2. If required, the control panel can be Never touch the connections pivoted to the side (see page 107).

  • Page 107: Writing Reports

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Pivoting control panel to the side Writing reports Enter measurements taken during com- missioning (described in the following) into the reports from page 138 onwards.

  • Page 108: Checking The Refrigerant Circuit For Leaks

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the refrigerant circuit for leaks 1. Check the floor area, valves and all 2. Check the heat pump interior with a visible solder joints for traces of oil. refrigerant leak detector or leak detecting spray for refrigerant leaks.

  • Page 109: Checking The Expansion Vessel And Heating Circuit Pressure

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Open any on-site non-return valves if 6. Close drain & fill valve. installed. 7. To prevent damage to electrical com- 2. Check the pre-charge pressure of the ponents, connect an on-site hose to expansion vessel (see the following manual air vent valve A and open chapter).

  • Page 110: Checking The Compressor Casing Temperature

    The compressor must not develop a layer of ice on its outside, and the casing must not get hotter than 60 °C (if necessary, check with Viessmann technical service). Commissioning the system Commissioning (configuration, parame- Note ter settings and function checks) can be...
  • Page 111 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Always observe the instructions Switch on the ON/OFF switch on the in the separate service instruc- heat pump control unit. tions of the Vitotronic 200 heat ■ The enquiry "Commissioning pump control unit, otherwise the Start?"...
  • Page 112 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Language Date Time Date / time Start commissioning? Parameter group Parameter Programming select level 1 Sensor values Temperature sensors display Signal inputs Signal inputs display Actuator test Actuator test carry out Subscriber check LON Subscriber check carry out...
  • Page 113 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Commissioning without the commissioning assistant Enabling the service menu Service menu: 1. Press OK + å simultaneously for The service menu can be enabled from approx. 4 s any menu. 2.
  • Page 114 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Pump/component Parameter Setting Heating circuit pump and "System definition" Ó With heating circuit mixer M2/HC2 with mixer M2/HC2 "System scheme 7000" Heating circuit pump and "System definition" Ó With heating circuit mixer M3/HC3 (control via "System scheme 7000"...
  • Page 115 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Pump/component Parameter Setting Remote control (e.g. "Heating circuit 1" Ó "1" Vitotrol 200A) "Remote control 2003" Note Set code at the "Heating circuit 2" Ó Vitotrol 200A to "Remote control 3003" assign heating cir- cuits: "Heating circuit 3"...
  • Page 116 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) External functions Parameter Setting External changeover of the "System definition" Ó "0" to "10" operating mode of various "System components for system components external changeover 7011" "System definition" Ó "0" to "3" "Operating status for external changeover 7012"...
  • Page 117 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Instantaneous heating water heater Parameters for Setting instantaneous heating water heater "Electr booster heater" Ó "1" "Enable instantaneous heating water heater 7900" "Electr booster heater", if applicable Ó "1" "Enable instant. heating water heater for cen- tral heating 7902"...
  • Page 118 Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Swimming pool water heating Parameters for swimming pool water heating Setting "System definition" Ó "1" "External extension 7010" "System definition" Ó "1" "Swimming pool 7008" Cascade via external extension H1 Parameter Setting Lead appliance...

  • Page 119: Instructing The System User

    Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Parameter Setting Lead appliance Lag heat pump "System definition" Ó "0" to "255" – "Output lag heat pump 700B" "System definition" Ó "0" to "31" "0" to "31" "Use of heat pump in cascade 700C"...

  • Page 120: Troubleshooting

    Troubleshooting Repair Overview of sensors, drain valve and air vent valve Type AWO-M-AC 301.A...
  • Page 121 Troubleshooting Repair (cont.) Type AWCI-M-AC 301.A A Collector L Safety high pressure switch B Schrader valve, high pressure side M Hot gas temperature sensor C Filter dryer N Digital scroll valve D Liquid gas temperature sensor O Low pressure sensor E Electronic expansion valve (EEV) P Schrader valve, low pressure side F Manual air vent valve...
  • Page 122 Troubleshooting Repair (cont.) Checking sensors ■ For sensor connections to the control- ler and sensor PCB, see page 78. ■ For the position of the sensors in the heat pump, see diagram on page 120. Temperature sensors type Ni500 Capturing element: "Ni500" ■...
  • Page 123 Troubleshooting Repair (cont.) Checking fuses/MCB For fuse locations, see from page 78. ■ Fuse F1 is located on the cross con- nect PCB. ■ Fuse F3 is located on the main PCB. Fuses F1 and F3: ■ 6.3 AH (slow), 250 V~ ■...

  • Page 124: Parts Lists

    Parts lists Parts list type AWCI-M-AC 301.A Information for ordering spare parts. 033 Rear section, side panel, air han- Quote the part and serial numbers (see dling enclosure, r.h./l.h. type plate) and the position numbers of 034 Cover, air handling enclosure, r.h./ the required part (as per this parts list).
  • Page 125 155 Electronic expansion valve con- 208 Top l.h. side panel necting cable 209 Bottom l.h. side panel 156 Connecting cable, compressor 210 Viessmann logo 158 Connecting cable, 3-way diverter 211 Vitocal 300 logo valve 212 Top back panel brace 159 Temperature sensor Pt500, air dis-...
  • Page 126 Parts lists Parts list type AWCI-M-AC 301.A (cont.)
  • Page 127 Parts lists Parts list type AWCI-M-AC 301.A (cont.)
  • Page 128 Parts lists Parts list type AWCI-M-AC 301.A (cont.)
  • Page 129 Parts lists Parts list type AWCI-M-AC 301.A (cont.)

  • Page 130: Parts List Type Awo-M-Ac 301.A

    Parts lists Parts list type AWCI-M-AC 301.A (cont.) Parts list type AWO-M-AC 301.A Information for ordering spare parts. Standard parts are available from your Quote the part and serial numbers (see local supplier. type plate) and the position numbers of A Type plate the required part (as per this parts list).
  • Page 131 044 Gasket A 27 x 39 x 2 mm 207 Back panel, bottom 045 Return connection set 209 Bottom l.h. side panel 046 Flow connection set 210 Viessmann logo 051 Inlet ring for fan 211 Vitocal 300 logo 052 Fan 212 Top back panel brace...
  • Page 132 Parts lists Parts list type AWO-M-AC 301.A (cont.) Parts not shown 155 Electronic expansion valve con- 019 Sealing cap necting cable 062 Anti-vibration mounts (set) 156 Connecting cable, compressor 121 Temperature sensor Pt500 159 Temperature sensor Pt500, air dis- 130 Auxiliary contact HN10 charge, evaporator 136 Control module cable kit 160 Cable entries...
  • Page 133 Parts lists Parts list type AWO-M-AC 301.A (cont.)
  • Page 134 Parts lists Parts list type AWO-M-AC 301.A (cont.)
  • Page 135 Parts lists Parts list type AWO-M-AC 301.A (cont.)
  • Page 136 Parts lists Parts list type AWO-M-AC 301.A (cont.)
  • Page 137 Parts lists Parts list type AWO-M-AC 301.A (cont.)

  • Page 138: Commissioning/Service Reports

    Commissioning/service reports Hydraulic parameter report Setting and test values Set value Commission- Testing the external heating circuit pumps Circulation pump type Circulation pump stage Overflow valve setting Primary circuit commissioning Air inlet temperature °C Air discharge temperature °C Temperature differential ΔT: Secondary circuit flow temperature = 35 °C 4 to 8 at air inlet temperature ≤...
  • Page 139 Commissioning/service reports Control parameters report (cont.) Parameter Code Delivered condi- Commis- tion sioning System definition System scheme (see page 25) 7000 Temperature differential for calculating 7003 40 (≙ 4 K) the heating limit Temperature differential for calculating 7004 40 (≙ 4 K) the cooling limit Swimming pool 7008...
  • Page 140 Commissioning/service reports Control parameters report (cont.) Parameter Code Delivered condi- Commis- tion sioning External heat source Enable external heat source 7B00 Priority ext. heat source/instant. heating 7B01 water heater Dual mode temperature external heat 7B02 100 (≙ 10 °C) source Enable external heat source for DHW 7B0D heating...
  • Page 141 Commissioning/service reports Control parameters report (cont.) Parameter Code Delivered condi- Commis- tion sioning Electric booster heater Enable instantaneous heating water 7900 heater Enable instant. heating water heater for 7902 central heating Max. output instantaneous heating water 7907 heater Output for instant. heating water heater at 790A power-OFF Dual mode temp.
  • Page 142 Commissioning/service reports Control parameters report (cont.) Parameter Code Delivered condi- Commis- tion sioning Heating circuit 2 Standard room temperature 3000 200 (≙ 20 °C) Reduced room temperature 3001 200 (≙ 20 °C) Remote control 3003 Heating curve slope 3006 6 (≙ 0.6) Heating curve level 3007 0 (≙...
  • Page 143 Commissioning/service reports Control parameters report (cont.) Parameter Code Delivered condi- Commis- tion sioning Time Automatic changeover summertime - 7C00 wintertime Start summertime - month 7C01 Start summertime - week 7C02 Start summertime - day 7C03 Start wintertime - month 7C04 Start wintertime - week 7C05 Start wintertime - day...

  • Page 144: Specification

    Specification Specification Vitocal 300-A Type AWCI-M- AWO-M- AWO-M- 301.A09 301.A09 301.A09 (Silent) Heating output data at 100 % to EN 14511 (A2/W35 °C, spread 5 K) Rated heating output 8.60 Power consumption Coefficient of performance ε (COP) 3.50 Output control 3 to 8.6 Heating output data at 100 % to EN 255 (A2/W35 °C, spread 10 K)
  • Page 145 Specification Specification (cont.) Vitocal 300-A Type AWCI-M- AWO-M- AWO-M- 301.A09 301.A09 301.A09 (Silent) Heating water at 10 K spread Contents litres Min. flow rate Pressure drop, condenser mbar Max. flow temperature at -20°C air °C intake temperature Max. flow temperature at -5 °C air °C intake temperature Electrical values...
  • Page 146 Specification Specification (cont.) Vitocal 300-A Type AWCI-M- AWO-M- AWO-M- 301.A09 301.A09 301.A09 (Silent) Sound power level L A-weighted sound power level (total) at A7 °C (±3 K)/W35 °C (±1 K) ■ In the installation room – Fan stage 1 dB(A) –...

  • Page 147: Appendix

    Hydraulic lines fully thermally insulated All windows and external doors sealed Components for cooling mode fully installed (optional) Preferred appointment: Date Time Date Time All work ordered from Viessmann will be charged to me/us in accordance with the current Viessmann pricelist. Place/date Signature...

  • Page 148: Declaration Of Conformity

    Certificates Declaration of conformity We, Viessmann Werke GmbH & Co KG, D-35107 Allendorf, declare as sole respon- sible body that the product Vitocal 300-A, type AWCI-M-AC 301.A and type AWO- M-AC 301.A, incl. the heat pump control unit conforms with the following stand-...

  • Page 149: Keyword Index

    Keyword index Keyword index Air duct..........10 Declaration of Conformity....148 Antifreeze...........21 DHW heating 1........41 Appliance connector......10 DHW heating 2........44 Dimensions ■ Type AWCI-M-AC 301.A....8 Cables........13, 20, 23 ■ Type AWO-M-AC 301.A....15 ■ Applying strain relief.......74 Drain & fill facility........21 ■ Inserting..........71 Draining Cascade ■...
  • Page 150 Keyword index Keyword index (cont.) Flow temperature sensor, secondary cir- cuit.............61 Panel..........71 Foundations........15 Parameter Frost protection........21 ■ Immersion heater......117 Parameters ■ Cascade via H1......118 Heating circuit connection....59 ■ Cascade via LON......118 Heat pump control unit ■ Cooling function......116 ■ Fitting..........71 ■...
  • Page 151 Keyword index Keyword index (cont.) Service menu ■ Calling up........113 Underfloor heating......82 ■ Disabling........113 Underfloor heating circuit....82 ■ Enabling........113 Use of heat pump in a cascade118, 119 Setting parameters......113 Siting ■ Type AWCI-M-AC 301.A....7, 8 Vitocom..........115 ■ Type AWO-M-AC 301.A...14, 15 Swimming pool heating......94 System example 1......25 Wall clearances...
  • Page 152 Applicability Serial No.: 7440 160 7440 162 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...

This manual is also suitable for:

Vitocal 300 awo-m-ac 301.aVitocal 300 awci-m-ac 301.a

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