Viessmann Vitocal 222-S Installation And Service Instructions For Contractors
Compact heat pumps, split version for heating and cooling operation
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VIESMANN
Installation and service instructions
for contractors
Vitocal 222-S
Type AWT 221.A04 to A13, 221.B10 to B16
Compact heat pumps, split version for heating operation
Type AWT-AC 221.A04 to A13, 221.B10 to B16
Compact heat pumps, split version for heating and cooling operation
For applicability, see the last page
VITOCAL 222-S
Please keep safe.
5776 028 GB
1/2017
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Table of Contents
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Summary of Contents for Viessmann Vitocal 222-S
- Page 1 VIESMANN Installation and service instructions for contractors Vitocal 222-S Type AWT 221.A04 to A13, 221.B10 to B16 Compact heat pumps, split version for heating operation Type AWT-AC 221.A04 to A13, 221.B10 to B16 Compact heat pumps, split version for heating and cooling operation...
- Page 2 ■ Safeguard the system against reconnection. Repair work Please note Repairing components that fulfil a safety func- tion can compromise the safe operation of your system. Replace faulty components with genuine Viessmann spare parts.
- Page 3 Spare and wearing parts that have not been tes- ted together with the system can compromise its function. Installing non-authorised components and making non-approved modifications or con- versions can compromise safety and may inva- lidate our warranty. For replacement, use only spare parts supplied or approved by Viessmann.
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Page 4: Table Of Contents
Index Index 1. Information Disposal of packaging ................Symbols ....................Intended use ..................Product information ................2. Preparing for installation Requirements for on-site connections ........... Recommended power cables ............. ■ 3. Installation sequence Installing the outdoor unit ............... 11 Installation information ................ 11 ■... - Page 5 Draining secondary side heat pump ............73 Checking the sensors ................74 Indoor unit: Viessmann NTC 10 k (marked blue) ......74 Ω ■ Indoor unit: Viessmann Pt500A (green ID label) ........ 75 ■ Outdoor unit: NTC 10 k (without ID) ..........75 Ω ■...
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Page 6: Information Disposal Of Packaging
Please dispose of packaging waste in line with statu- tory regulations. DE: Use the disposal system organised by Viessmann. AT: Use the ARA statutory disposal system (Altstoff Recycling Austria AG, licence number 5766). CH: Packaging waste is disposed of by the HVAC contractor. -
Page 7: Product Information
The mixer extension kit (accessories) is required to switch the mixer. Central cooling The Vitocal 222-S, type AWT-AC can be used for cen- tral cooling. Central cooling results either through a heating/cooling circuit or via a separate cooling circuit. For this, the refrigerant circuit is reversed and heat is extracted from the cooling circuit. -
Page 8: Preparing For Installation Requirements For On-Site Connections
Preparing for installation Requirements for on-site connections Indoor unit Fig. 1 Pos. Sym- Meaning Connection to the internal unit Cable entry < 42 V – — – ¾ DHW circulation – Cable entry 400 V~/230 V~, – — > 42 V Cold water –... -
Page 9: Recommended Power Cables
Preparing for installation Requirements for on-site connections (cont.) Pos. Sym- Meaning Connection to the internal unit Liquid line Type AWT-AC Pipe UNF thread 221.A04 6 mm ⅝ (Reducer x ⁷⁄₁₆ supplied) ⅝ 221.A05 to A13 10 mm ⅝ 221.B10 to B16 10 mm ⅝... - Page 10 Preparing for installation Requirements for on-site connections (cont.) Outdoor unit 230 V~ Type AWT/AWT-AC 221.A04 221.A05 221.A07 221.A10 221.A13 Compressor Cable cross-section 3 x 2.5 mm 3 x 2.5 mm 3 x 2.5 mm 3 x 2.5 mm 3 x 4.0 mm Max.
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Page 11: Installation Sequence Installing The Outdoor Unit
Installation sequence Installing the outdoor unit Installation information Types of installation: Condensate: Floorstanding installation with line entry above Ensure the condensate can drain freely, and create a ■ ■ ground level permanent gravel bed below the external unit as a ■... -
Page 12: Installation Site
Installation sequence Installing the outdoor unit (cont.) Installation site Select a site with good air circulation, so that the Take into account the lengths of the refrigerant lines: ■ ■ cooled air can dissipate and be replaced by warm See "Connecting refrigerant lines". air. -
Page 13: Transport And Siting
Installation sequence Installing the outdoor unit (cont.) Type AWT/AWT-AC Dimensions in mm Line entry Above ground Below ground level level 221.A04 1000 ≥ ≥ ≥ ≥ ≥ 221.A05 1000 ≥ ≥ ≥ ≥ ≥ 221.A07 1000 ≥ ≥ ≥ ≥ ≥... -
Page 14: Floorstanding Installation
Installation sequence Installing the outdoor unit (cont.) Floorstanding installation Fig. 3 Fig. 4 Support for floorstanding installation (accessories) Note We recommend letting condensate drain away freely Gravel bed as condensate soakaway Concrete foundations (see technical guide) (without condensate pipe). KG conduit DN 100 (only with entries below ground level) Rubber mounts (supplied) Wall mounting... -
Page 15: Installation Room Requirements
Installation sequence Installing the indoor unit (cont.) Please note Impacts, compression and tensile loads can cause damage to the outside panels of the appliance. Never apply loads/weight to the top, front or side panels of the appliance. Installation room requirements Please note Minimum room volume (to EN 378): Unfavourable ambient conditions can lead to... -
Page 16: Minimum Clearances
Installation sequence Installing the indoor unit (cont.) Minimum clearances Minimum room height h Installation h in mm Without connection set for pre-instal- 2000 ■ lation/DHW (accessories) With connection set for pre-installa- 2100 ■ tion/DHW (accessories) Observe engineering information. Technical guides for heat pumps Fig. -
Page 17: Removing The Cylinder Module
Installation sequence Installing the indoor unit (cont.) Removing the cylinder module Fig. 6... - Page 18 Installation sequence Installing the indoor unit (cont.) 193B P501 P303 P302 P301 Fig. 7 Fig. 8...
- Page 19 Installation sequence Installing the indoor unit (cont.) Fig. 9...
- Page 20 Installation sequence Installing the indoor unit (cont.) Fig. 10...
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Page 21: Assembly And Sealing Faces To Note
Installation sequence Installing the indoor unit (cont.) Fig. 11 Note Do not damage sealing tape when removing the cylinder module. Assembly and sealing faces to note Please note Leaking hydraulic connections lead to appli- ance damage. Ensure the diaphragm grommets at the pipe entries are seated correctly. - Page 22 Installation sequence Installing the indoor unit (cont.) 2. Fit the cylinder module in reverse order to that described under "Removing the cylinder module". See page 17 onwards. Please note Leaking hydraulic connections lead to appli- ance damage. Make watertight hydraulic connections ■...
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Page 23: Connecting The Refrigerant Lines
Installation sequence Connecting the refrigerant lines The external unit is pre-charged with refrigerant ■ R410A. ■ In the following cases, fit oil lift bends in the rising pipe: – In heating mode, if the internal unit is installed higher than the external unit: See diagram below. In cooling mode, if the internal unit is installed –... -
Page 24: Sound And Vibration Isolation When Line Entry Is Above Ground Level
Installation sequence Connecting the refrigerant lines (cont.) Sound and vibration isolation when line entry is above ground level Note Route connecting cables and refrigerant lines sepa- rately. Fig. 16 Note Line entry, e.g. KG conduit with thermal insulation Only for 230 V appliances Cables/leads between internal and external units Pipe bends for compensating vibrations Tube clips with EPDM inserts... -
Page 25: Connection To Outdoor Unit
Installation sequence Connecting the refrigerant lines (cont.) Connection to outdoor unit Fig. 17 Example type AWT/AWT-AC 221.A04 Liquid line Hot gas line 1. Remove the side cover: see page 40. 3. Flare the pipe ends. Please note 4. Secure the pipes. Contamination (e.g. -
Page 26: Connection To Indoor Unit
Installation sequence Connecting the refrigerant lines (cont.) Tighten nuts with the following torque: Type AWT/AWT-AC Line Connection to the Torque in Nm outdoor unit ⁷⁄₁₆ UNF 221.A04 Liquid line 6 mm 14 to 18 Hot gas line 12 mm 50 to 62 ¾... - Page 27 Installation sequence Connecting the refrigerant lines (cont.) 1. Undo nuts from refrigerant connections and slide onto the supplied pipe bends. 2. Flare the pipe ends of the supplied pipe bends on the short side. Note Flare the pipe end of the hot gas line by approx.
- Page 28 Installation sequence Connecting the refrigerant lines (cont.) 5. Flare the pipe bends on their open end and secure connection piece (twin connector) with union nuts. Note ■ Flare the pipe end of the hot gas line by approx. 0.5 mm. Connection pieces must not be skewed.
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Page 29: Connecting The Secondary Circuit
Installation sequence Connecting the refrigerant lines (cont.) Type AWT/AWT-AC Line Connection to the Torque in Nm indoor unit 221.A07 Liquid line 10 mm 33 to 42 ⅝ Hot gas line 16 mm 63 to 77 ⅞ 221.A10 Liquid line 10 mm 33 to 42 ⅝... - Page 30 Installation sequence Connecting the secondary circuit (cont.) 2. Install the safety assembly provided: Either to an on-site line in the heating water return or to the secondary circuit connection set (accessories) Connection set installation instructions Please note Leaking hydraulic connections lead to appli- ance damage.
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Page 31: Connecting The Dhw Side
Installation sequence Connecting the DHW side For connecting the DHW side, observe DIN 1988 and DIN 4753 (CH: SVGW regulations). P R H M O Fig. 24 Flow regulating valve DHW circulation pump Pressure gauge connection Spring-loaded check valve Non-return valve/pipe separator Heat pump terminal area (plan view) Drain valve Expansion vessel, suitable for drinking water... -
Page 32: Electrical Connection
Installation sequence Electrical connection Danger Danger Damaged wiring insulation wiring can lead to In terms of safety, the bus cables for the indoor/ serious injury from electrical current and result in outdoor units (12 V or 43 V) do not count as LV appliance damage. -
Page 33: Indoor Unit: Routing Cables To The Wiring Chamber
Installation sequence Electrical connection (cont.) Indoor unit: routing cables to the wiring chamber 400/230 V > 42 V < 42 V Fig. 25 Power cables to switching module for instantane- Type AWT/AWT-AC 221.A04 to A07: ous heating water heater 230 V~/400 V~ Bus cable 43 V: routing in the 230 V~ voltage area Connecting cables for 230 V~ components (for terminals, see page 41) -
Page 34: Indoor Unit: Overview Of Connections
Installation sequence Electrical connection (cont.) Indoor unit: overview of connections 12 V P202 P203 43 V F101 Fig. 26 Expansion PCB on main PCB: connect nothing on Switching module and power supply for instanta- site. neous heating water heater: see page 44. Main PCB: see page 35. -
Page 35: Indoor Unit: Main Pcb (230 V~ Components)
Installation sequence Electrical connection (cont.) Indoor unit: main PCB (230 V~ components) Information regarding the connection values Set the required parameters during commissioning: The specified output is the recommended connected see page 59 onwards. ■ load. ■ Total output of all components connected directly to the heat pump control unit (e.g. - Page 36 Installation sequence Electrical connection (cont.) Plug Terminals Function Explanation 212.3 DHW circulation pump Connection values Output: 50 W ■ Voltage: 230 V~ ■ Max. switching current: 4(2) A ■ 212.4 3-way diverter valve for heating water Connection values buffer cylinder bypass or heat pump Output: 130 W ■...
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Page 37: Indoor Unit: Expansion Pcb On Main Pcb (230 V~ Components)
Installation sequence Electrical connection (cont.) Indoor unit: expansion PCB on main PCB (230 V~ components) Do not make any on-site connections. Indoor unit: luster terminals (signal and safety connections) Set the required parameters during commissioning: see page 59 onwards. Terminals Function Explanation X3.1... -
Page 38: Indoor Unit: Controller And Sensor Pcb (Lv Connections)
Installation sequence Electrical connection (cont.) Terminals Function Explanation X3.8 Frost stat and/or contact humidistat, Requires floating N/C contact: X3.9 cooling Closed: Continuous safety chain ■ Open: Safety chain interrupted; heat pump shut down ■ Jumper Breaking capacity 230 V~, 0.15 A ■... -
Page 39: Indoor Unit: Avi Pcb
— Connection for Viessmann appliances, e.g. Vitovent 300-F Note If further Viessmann appliances are to be connected to Modbus 1, plug in the Modbus distributor (accessories) (see "Modbus distributor" installation in- structions). Connection for LON communication module (see "LON communication mod- —... -
Page 40: Outdoor Unit: Overview Of Connections
Installation sequence Electrical connection (cont.) Plug Component F101 Fuse 1.0 A L (slow) P202 Bus connection (12 V to outdoor unit for type AWT/AWT-AC 221.A10/A13, 221.B10 to B16) P203 Bus connection (43 V to outdoor unit for type AWT/AWT-AC 221.A04 to A07) Note Only one BUS connection should be connected. -
Page 41: Connecting Indoor And Outdoor Units
Installation sequence Electrical connection (cont.) Connecting indoor and outdoor units Type AWT/AWT-AC 221.A04 221.A05/A07 221.A10/A13 221.B10/B13/B16 230 V~ 230 V~ 230 V~ 400 V~ C N L ? C2 C1 ? N L C2 C1 ? N L3 L2L1 12VCOM COM43V Fig. -
Page 42: Heat Pump Control Unit Power Supply 230 V
Installation sequence Power supply (cont.) The assignment of the power-OFF (for compressor Protect the power cable to the heat pump control unit ■ ■ and/or instantaneous heating water heater) is made with an MCB/fuse of max. 16 A. via the type of connection and by setting parameters ■... - Page 43 Installation sequence Power supply (cont.) Outdoor unit power supply 230 V~ Type AWT/AWT-AC 221.A04 221.A05/A07 221.A10/A13 C N L ? C2 C1 ? N L ? N L1 ? N L1 Fig. 40 Fig. 39 Fig. 41 Outdoor unit wiring chamber: see page 40. Power supply 230 V/50 Hz Type AWT/AWT-AC 221.A04...
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Page 44: Connecting Instantaneous Heating Water Heater Power Supply
Installation sequence Power supply (cont.) Connecting instantaneous heating water heater power supply Internal unit Recommended power cable: ■ 1/N/PE 400 V~: 5 x 2.5 mm 230 V/50 Hz 230 V~: 7 x 2.5 mm ■ Fuse rating max. 16 A Economy tariff and power-OFF can be used ■... -
Page 45: Power Supply With Power-Off: With On-Site Load Disconnect
Installation sequence Power supply (cont.) X3.7 X3.6 X3.18/X2.1/X1.1 (400 V~) 7 (230 V~) ≈ Fig. 44 Diagram excluding fuses and RCD Heat pump control unit (indoor unit, luster termi- nals: see chapter "Indoor unit: overview of connec- tions") Instantaneous heating water heater Heat pump compressor (outdoor unit) Heat pump control unit power supply: see chapter "Heat pump control unit power supply 230 V~"... - Page 46 Installation sequence Power supply (cont.) X3.7 X3.6 X3.18/X2.1/X1.1 5 (400 V~) (230 V~) ≈ Fig. 45 Diagram excluding fuses and RCDs Heat pump control unit (indoor unit, luster termi- nals, see chapter "Indoor unit: overview of connec- tions") Instantaneous heating water heater (if installed) Heat pump compressor (outdoor unit) Heat pump control unit power supply: see chapter "Heat pump control unit power supply 230 V~"...
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Page 47: Mains Power Supply In Conjunction With On-Site Power Consumption
Installation sequence Power supply (cont.) Mains power supply in conjunction with on-site power consumption Without power-OFF E1E2 D /D L1 L1 L2 L2 L3 L3 Fig. 46 Heat pump Bi-directional meter (for PV systems to consume Additional consumers (of power generated on site) power on site): Energy taken from power supply utility and energy in the household... -
Page 48: Closing The Heat Pump
Installation sequence Power supply (cont.) [{{] 0-10V Fig. 47 EA1 extension Floating N/O contact 2: The agreement of the Connection to controller and sensor PCB power supply utility may be required Floating N/O contact 1: The agreement of the Power supply 1/N/PE 230 V/50 Hz power supply utility may be required Note ■... -
Page 49: Commissioning, Inspec-Steps - Commissioning, Inspection And Maintenance
Commissioning, inspection, maintenance Steps - commissioning, inspection and maintenance Commissioning steps Inspection steps Maintenance steps Page • • • 1. Opening the heat pump..................... 50 • 2. Compiling reports......................50 • 3. Purging the refrigerant lines and indoor unit..............50 •... -
Page 50: Opening The Heat Pump
Commissioning, inspection, maintenance Opening the heat pump Danger Please note Contact with 'live' components can lead to seri- Commissioning immediately after installation ous injury from electric current. Some compo- can lead to appliance damage. nents on PCBs remain 'live' even after the Wait at least 30 min between installing and power supply has been switched off. -
Page 51: Evacuating The Refrigerant Lines And Indoor Unit
Commissioning, inspection, maintenance Evacuating the refrigerant lines and indoor unit Please note Please note Commissioning is weather-dependent. At out- Escaping refrigerant will cause environmental side temperatures below 0 °C, moisture can pollution. condense and sublimate in the refrigerant lines. ■ Before evacuating the refrigerant lines and the If water droplets and/or ice particles enter the internal unit, check all connections for tight-... -
Page 52: Charging The Refrigerant Lines And Indoor Unit
Commissioning, inspection, maintenance Evacuating the refrigerant lines and indoor unit (cont.) Shut-off valve Vacuum pump Liquid line Connection hose between pressure gauge set and Fill hose between pressure gauge set and outdoor vacuum gauge unit Valve for vacuum gauge Pressure gauge set Vacuum gauge Connection hose between pressure gauge set and vacuum pump... -
Page 53: Checking The Refrigerant Circuit For Tightness
Commissioning, inspection, maintenance Charging the refrigerant lines and indoor unit (cont.) Line lengths 12 to 30 m: 6. Fit the union nut with copper cap to the service valve of the external unit: Torque 15 to 20 Nm. 1. Connect hose between pressure gauge set and refrigerant bottle. - Page 54 Commissioning, inspection, maintenance Filling and venting the secondary side (cont.) Please note Escaping liquids can lead to electrical defects. Protect electrical components of the heat pump from escaping liquids. 1. Open any non-return valves installed on site. 2. Check the pre-charge pressure of the expansion vessel.
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Page 55: Checking The Expansion Vessel And Heating Circuit Pressure
Commissioning, inspection, maintenance Filling and venting the secondary side (cont.) Opening the air vent valve for DHW heating Fig. 50 Checking the expansion vessel and heating circuit pressure Observe engineering information. Technical guides for heat pumps Cleaning the DHW cylinder Danger Please note Uncontrolled escape of DHW or heat transfer... -
Page 56: Measuring The Anode Earth Current With An Anode Tester
Commissioning, inspection, maintenance Cleaning the DHW cylinder (cont.) Please note A short circuit between the magnesium anode and the internal indirect coil negates the protec- tive effect of the magnesium anode. This leads to corrosion damage on the DHW cylinder. Before connecting the electrical cables, check the resistance across terminals . -
Page 57: Checking The Indoor Unit Electrical Connections For Firm Seating
Commissioning, inspection, maintenance Replacing the magnesium anode (cont.) Please note A short circuit between the magnesium anode and the internal indirect coil negates the protec- tive effect of the magnesium anode. This leads to corrosion damage on the DHW cylinder. Before connecting the electrical cables, check the resistance across terminals (see... -
Page 58: Checking The Thermal Insulation Of Flared Connections
Commissioning, inspection, maintenance Checking the thermal insulation of flared connections Checking electrical connections of the outdoor unit for firm seating Danger Contact with 'live' components can lead to seri- ous injury from electric current. Some compo- nents on PCBs remain 'live' even after the power supply has been switched off. -
Page 59: Commissioning The System
Commissioning, inspection, maintenance Commissioning the system Commissioning (configuration, parameter settings and Note function check) can be carried out with or without the The type and extent of the parameters depend on the commissioning wizard (see following chapter and serv- appliance type, on the selected system scheme and ice instructions for the heat pump control unit). - Page 60 Commissioning, inspection, maintenance Commissioning the system (cont.) Language Date/Time Time Date Start commissioning? Coding Parameter group Parameters level 1 select Temperature Sensor values sensors display Signal inputs Signal inputs display Actuator test Actuator test carry out Subscriber check (LON) Subscriber check carry out Function check Function...
- Page 61 Commissioning, inspection, maintenance Commissioning the system (cont.) Required heat pump parameters "Output compressor stage 5030" During commissioning, the heating output of the heat pump must be set subject to type. Type AWT/AWT-AC 221.A04 221.A05 221.A07 221.A10 221.A13 221.B16 221.B10 221.B13 "Output compressor stage 5030"...
- Page 62 Commissioning, inspection, maintenance Commissioning the system (cont.) Parameters for pumps and other components Parameter Setting Heating circuit pump "System definition" Ó "System scheme 7000" With heating circuit A1/HC1 for heat- ■ ing circuit without mixer With heating circuit M2/HC2 for ■...
- Page 63 Commissioning, inspection, maintenance Commissioning the system (cont.) Parameters for external functions Parameter Setting External demand If applicable "Internal hydraulics" Ó "Flow temperature for external demand 730C" Set flow temperature for external de- mand External starting of the compressor; mixer in control mode or OPEN "System definition"...
- Page 64 Commissioning, inspection, maintenance Commissioning the system (cont.) Parameters for swimming pool water heating Parameter Setting "System definition" Ó "External extension 7010" "1" or "3" "Swimming pool 7008" "1" Parameters for ventilation Parameters Setting "Ventilation" Ó "Vitovent enable 7D00" "1" Vitovent 300-F "2"...
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Page 65: Ticking The Heat Pump Type
Commissioning, inspection, maintenance Commissioning the system (cont.) Parameters Setting Specify the temperature differential to the selected set value for the chosen function. "Photovoltaics" Ó ≙ "Raise set DHW cylinder temperature PV 7E21" "0" to "500" ( 0 to 50 K) ≙... -
Page 66: Instructing The System User
Commissioning, inspection, maintenance Checking the system function (cont.) Fig. 54 Reset button Instructing the system user The system installer should hand the operating instruc- tions to the system user and instruct the user in oper- ating the system. This also includes all components added as accessories, such as remote controls. -
Page 67: Maintenance Overview Of Electrical Components
Maintenance Overview of electrical components See page 34 onwards. Opening programming unit Fig. 55... - Page 68 Maintenance Opening programming unit (cont.) Removing cover from programming unit, if necessary Fig. 56...
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Page 69: Overview Of Internal Components: Indoor Unit
Maintenance Overview of internal components: indoor unit a:C] Fig. 57 Flow temperature sensor, secondary circuit Instantaneous heating water heater with high (alternative positions) limit safety cut-out Cylinder temperature sensor Secondary circuit drain & fill valve Secondary circuit return temperature sensor Indoor unit service valve: Schrader valve;... -
Page 70: Dhw Cylinder Drain & Fill Valve Positions
Maintenance Overview of internal components: indoor unit (cont.) Secondary circuit air vent valve Pressure sensor (ICT) for determining conden- sation temperature in condenser DHW cylinder drain & fill valve positions Fig. 58 Closed Open to drain the internal DHW line Open to drain or fill the cylinder Overview of internal components: outdoor unit Danger... -
Page 71: Outdoor Unit 4 Kw, Type Awt/Awt-Ac 221.A04
Maintenance Overview of internal components: outdoor unit (cont.) Outdoor unit 4 kW, type AWT/AWT-AC 221.A04 Fig. 59 Compressor head temperature sensor (CTT) Heat exchanger (evaporator) Electronic expansion valve (EEV) Temperature sensor, air intake, evaporator (OAT) Temperature sensor, refrigerant inlet, evaporator Evaporator temperature sensor (OMT) (OCT) 4-way diverter valve... -
Page 72: Outdoor Unit 5 To 7 Kw, Type Awt/Awt-Ac 221.A05/A07
Maintenance Overview of internal components: outdoor unit (cont.) Outdoor unit 5 to 7 kW, type AWT/AWT-AC 221.A05/A07 Fig. 60 Compressor head temperature sensor (CTT) Heat exchanger (evaporator) High pressure switch (pHi) Temperature sensor, air intake, evaporator (OAT) Liquid separator Evaporator temperature sensor (OMT) Temperature sensor, refrigerant inlet, evaporator 4-way diverter valve (OCT) -
Page 73: Outdoor Unit 10 To 16 Kw, Type Awt/Awt-Ac 221.A10/A13, 221.B10 To B16
Maintenance Overview of internal components: outdoor unit (cont.) Outdoor unit 10 to 16 kW, type AWT/AWT-AC 221.A10/A13, 221.B10 to B16 Fig. 61 4-way diverter valve Heat exchanger (evaporator) Electronic expansion valve (EEV) Temperature sensor, air intake, evaporator (OAT) Liquid separator Evaporator temperature sensor (OMT) High pressure switch (pHi) Temperature sensor, refrigerant inlet, evaporator... -
Page 74: Checking The Sensors
Outdoor unit (see Refrigerant circuit con- ■ Ω gas) (CTT) page 70) troller (observe label on the outdoor unit) Indoor unit: Viessmann NTC 10 k (marked blue) Ω Outside temperature sensor Other sensors Temperature in °C Temperature in °C Fig. 62... -
Page 75: Indoor Unit: Viessmann Pt500A (Green Id Label)
Maintenance Checking the sensors (cont.) Indoor unit: Viessmann Pt500A (green ID label) Temperature in °C Fig. 64 Outdoor unit: NTC 10 k (without ID) Ω 1000 Temperature in °C Fig. 65... -
Page 76: Outdoor Unit: Ntc 50 K 惟
Maintenance Checking the sensors (cont.) Outdoor unit: NTC 50 k (without ID) Ω 1000 Temperature in °C Fig. 66 Checking the fuses For fuse locations: see page 34 onwards. Fuse F1 is located on the mains terminal of the heat Fuse F101: ■... - Page 77 Maintenance Checking the fuses (cont.)
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Page 78: Overview Of Assemblies, Indoor Unit
Indoor unit parts lists Overview of assemblies, indoor unit The following details are required when ordering parts: ■ Serial no. (see type plate ■ Assembly (from this parts list) ■ Position number of the individual part within the assembly (from this parts list) Fig. -
Page 79: Indoor Unit Parts Not Shown
The following details are required when ordering parts: ■ Serial no. (see type plate on page 78) ■ Position number of the part (from this parts list) Pos. Part 0004 Touch-up spray paint, white 0005 Touch-up paint stick, white 0007 Vitocal 222-S installation and service instructions... -
Page 80: Indoor Unit Casing
Indoor unit parts lists Indoor unit casing 0003 0006 0005 0001 0007 0004 0008 0009 0002 0010 Fig. 68... - Page 81 0002 Front panel, bottom 0003 Side panel, left 0004 Side panel, right 0005 Top panel, front 0006 Top panel, back 0007 Logos, Viessmann and Vitocal 222 0008 Support, heat pump control unit 0009 Screws (set) 0010 Fixing elements (2 pce)
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Page 82: Indoor Unit Electrical Equipment
Indoor unit parts lists Indoor unit electrical equipment 0018 0020 0033 0017 0019 0001 0032 0007 0006 0005 0010 0002 0009 0037 0011 0008 0030 0013 0023 0025 0024 0034 0035 0039 0040 Fig. 69... - Page 83 Indoor unit parts lists Indoor unit electrical equipment (cont.) Pos. Part 0001 Programming unit 0002 Controller and sensor PCB with cover (CU401) 0005 Main PCB with cover (MB761) 0006 Expansion PCB with cover (SA135) 0007 Coding card 0008 AVI PCB (IU122-A10) 0009 Base support, controller and sensor PCB 0010...
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Page 84: Indoor Unit Hydraulics
Indoor unit parts lists Indoor unit hydraulics 0005 0037 0038 0041 0031 0027 0023 0030 0030 0031 0032 0032 0036 0043 0044 0045 0037 0023 0008 0038 0023 0034 0047 0035 0020 0016 0028 0036 0035 0035 0034 0031 0042 0046 0043 0032... - Page 85 Indoor unit parts lists Indoor unit hydraulics (cont.) Pos. Part 0001 Back panel, lower casing 0002 Base plate 0003 Angle profile, lower casing, left 0004 Angle profile, lower casing, right 0005 Top panel, lower casing 0006 Retaining rail 0007 Insulation, base plate 0008 Connection line, heating water flow/return 0009...
- Page 86 Indoor unit parts lists Indoor unit hydraulics (cont.) Pos. Part 0045 Only for type AWT/AWT-AC 221.A04 to A07: Reducer (set) 0046 Liquid line 10 mm 0047 Hot gas line 15 mm 0048 Connection set...
- Page 87 Indoor unit parts lists Indoor unit hydraulics (cont.)
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Page 88: Indoor Unit Cylinder
Indoor unit parts lists Indoor unit cylinder 0007 0019 0029 0012 0027 0029 0008 0016 0015 0019 0014 0029 0029 0029 0013 0004 0001 0015 0028 0002 0014 0018 0026 0017 0029 0010 0025 0029 0026 0026 0029 0020 0016 0009 0011 0029... - Page 89 Indoor unit parts lists Indoor unit cylinder (cont.) Pos. Part 0001 DHW cylinder with internal indirect coil 170 l 0002 Back panel, casing top 0003 Retaining bracket for connection hoses 0004 Retaining bracket, DHW cylinder 0005 Return hose, DHW heating 0006 Flow hose, DHW heating 0007...
- Page 90 Indoor unit parts lists Indoor unit cylinder (cont.)
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Page 91: Ordering Parts
Outdoor unit parts list 230 V~, type AWT/AWT-AC 221.A04 Ordering parts The following details are required when ordering parts: ■ Serial no. (see type plate) ■ Position number of the part (from this parts list) -
Page 92: Outdoor Unit Parts 230 V~, Type Awt/Awt-Ac 221.A04
Outdoor unit parts list 230 V~, type AWT/AWT-AC 221.A04 Outdoor unit parts 230 V~, type AWT/AWT-AC 221.A04 0024 0010 0026 0020 0031 0009 0027 0005 0004 0030 0002 0015 0017 0016 0001 0032 0018 0013 0029 0012 0011 Fig. 72... - Page 93 Outdoor unit parts list 230 V~, type AWT/AWT-AC 221.A04 Outdoor unit parts 230 V~, type AWT/AWT-AC 221.A04 (cont.) Pos. Part 0001 Front casing 0002 Air inlet ring 0004 Axial fan 0005 DC motor 0009 Transformer 0010 Control unit 0011 Shut-off valve, liquid gas line 0012 Shut-off valve, hot gas line 0013...
- Page 94 Outdoor unit parts list 230 V~, type AWT/AWT-AC 221.A04 Outdoor unit parts 230 V~, type AWT/AWT-AC 221.A04 (cont.)
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Page 95: Ordering Parts
Outdoor unit parts list 230 V~, type AWT/AWT-AC 221.A05/A07 Ordering parts The following details are required when ordering parts: ■ Serial no. (see type plate) ■ Position number of the part (from this parts list) -
Page 96: Outdoor Unit Parts 230 V~, Type Awt/Awt-Ac 221.A05/A07
Outdoor unit parts list 230 V~, type AWT/AWT-AC 221.A05/A07 Outdoor unit parts 230 V~, type AWT/AWT-AC 221.A05/A07 0033 0031 0027 0036 0036 0028 0029 0004 0007 0034 0038 0006 0003 0020 0012 0022 0021 0043 0042 0005 0037 0013 0011 0017 0015 0016... - Page 97 Outdoor unit parts list 230 V~, type AWT/AWT-AC 221.A05/A07 Outdoor unit parts 230 V~, type AWT/AWT-AC 221.A05/A07 (cont.) Pos. Part 0001 Air discharge grille 0002 Side panel, left 0003 M8 nut 0004 Axial fan 0005 Module, 4-way diverter valve 0006 4-way diverter valve 0007 DC motor...
- Page 98 Outdoor unit parts list 230 V~, type AWT/AWT-AC 221.A05/A07 Outdoor unit parts 230 V~, type AWT/AWT-AC 221.A05/A07 (cont.)
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Page 99: Overview Of Assemblies 230 V~, Type Awt/Awt-Ac 221.A10/A13
Outdoor unit parts lists 230 V~, type AWT/AWT-AC 221.A10/A13 Overview of assemblies 230 V~, type AWT/AWT-AC 221.A10/A13 The following details are required when ordering parts: ■ Serial no. (see type plate ■ Assembly (from this parts list) ■ Position number of the individual part within the assembly (from this parts list) Fig. -
Page 100: Outdoor Unit Casing 230 V~, Type Awt/Awt-Ac 221.A10/A13
Outdoor unit parts lists 230 V~, type AWT/AWT-AC 221.A10/A13 Outdoor unit casing 230 V~, type AWT/AWT-AC 221.A10/A13 0001 0021 0022 0023 0017 0018 0019 0020 0013 0011 0010 0012 0015 0005 0011 0007 0010 0002 0003 0015 0007 0004 0006 0016 Fig. - Page 101 Outdoor unit parts lists 230 V~, type AWT/AWT-AC 221.A10/A13 Outdoor unit casing 230 V~, type AWT/AWT-AC 221.A10/A13 (cont.) Pos. Part 0001 Top panel 0002 Side panel, right 0003 Cover panel, top right 0004 Cover panel, bottom right 0005 Front panel, left 0006 Front panel, right 0007...
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Page 102: Outdoor Unit Electrical Equipment 230 V~, Type Awt
Outdoor unit parts lists 230 V~, type AWT/AWT-AC 221.A10/A13 Outdoor unit electrical equipment 230 V~, type AWT/AWT-AC 221.A10/A13 0005 0002 0003 0004 0001 0011 0006 0013 0008 0007 0012 0009 Fig. 76... - Page 103 Outdoor unit parts lists 230 V~, type AWT/AWT-AC 221.A10/A13 Outdoor unit electrical equipment 230 V~, type AWT/AWT-AC 221.A10/A13 (cont.) Pos. Part 0001 Main PCB 0002 Driver PCB 0003 Capacitor PCB 0004 PCB, mains filter 0005 Choke coil 0006 Coil, electronic expansion valve 0007 Coil, 4-way diverter valve 0008...
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Page 104: Outdoor Unit Hydraulics 230 V~, Type Awt/Awt-Ac 221.A10/A13
Outdoor unit parts lists 230 V~, type AWT/AWT-AC 221.A10/A13 Outdoor unit hydraulics 230 V~, type AWT/AWT-AC 221.A10/A13 0007 0008 0004 0003 0006 0001 0010 0005 Fig. 77... - Page 105 Outdoor unit parts lists 230 V~, type AWT/AWT-AC 221.A10/A13 Outdoor unit hydraulics 230 V~, type AWT/AWT-AC 221.A10/A13 (cont.) Pos. Part 0001 Compressor 0003 Liquid separator 0004 High pressure switch 0005 Shut-off valve, hot gas line 0006 Oil separator 0007 Electronic expansion valve 0008 Compressor thermal insulation 0010...
- Page 106 Outdoor unit parts lists 230 V~, type AWT/AWT-AC 221.A10/A13 Outdoor unit hydraulics 230 V~, type AWT/AWT-AC 221.A10/A13 (cont.)
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Page 107: Overview Of Assemblies 400 V~, Type Awt/Awt-Ac 221.B10/B13/B16
Outdoor unit parts lists 400 V~, type AWT/AWT-AC 221.B10/B13/B16 Overview of assemblies 400 V~, type AWT/AWT-AC 221.B10/B13/B16 The following details are required when ordering parts: ■ Serial no. (see type plate ■ Assembly (from this parts list) ■ Position number of the individual part within the assembly (from this parts list) Fig. -
Page 108: Outdoor Unit Casing 400 V~, Type Awt/Awt-Ac 221.B10/B13/B16
Outdoor unit parts lists 400 V~, type AWT/AWT-AC 221.B10/B13/B16 Outdoor unit casing 400 V~, type AWT/AWT-AC 221.B10/B13/B16 0001 0022 0021 0012 0017 0023 0018 0019 0013 0011 0010 0015 0005 0007 0011 0002 0003 0020 0010 0015 0004 0007 0016 0006 Fig. - Page 109 Outdoor unit parts lists 400 V~, type AWT/AWT-AC 221.B10/B13/B16 Outdoor unit casing 400 V~, type AWT/AWT-AC 221.B10/B13/B16 (cont.) Pos. Part 0001 Top panel 0002 Side panel, right 0003 Top cover 0004 Bottom cover 0005 Front panel, left 0006 Front panel, right 0007 Air discharge grille 0010...
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Page 110: Outdoor Unit Electrical Equipment 400 V~, Type Awt/Awt-Ac 221.B10/B13/B16
Outdoor unit parts lists 400 V~, type AWT/AWT-AC 221.B10/B13/B16 Outdoor unit electrical equipment 400 V~, type AWT/AWT-AC 221.B10/B13/B16 0005 0002 0004 0003 0001 0011 0017 0008 0006 0007 0009 0012 Fig. 80... - Page 111 Outdoor unit parts lists 400 V~, type AWT/AWT-AC 221.B10/B13/B16 Outdoor unit electrical equipment 400 V~ , type… (cont.) Pos. Part 0001 Main PCB 0002 Driver PCB 0003 Capacitor PCB 0004 PCB, mains filter 0005 Choke coil 0006 Coil, electronic expansion valve 0007 Coil, 4-way diverter valve 0008...
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Page 112: Outdoor Unit Hydraulics 400 V~, Type Awt/Awt-Ac 221.B10/B13/B16
Outdoor unit parts lists 400 V~, type AWT/AWT-AC 221.B10/B13/B16 Outdoor unit hydraulics 400 V~, type AWT/AWT-AC 221.B10/B13/B16 0007 0004 0003 0002 0008 0006 0010 0001 0009 0005 0008 Fig. 81... - Page 113 Outdoor unit parts lists 400 V~, type AWT/AWT-AC 221.B10/B13/B16 Outdoor unit hydraulics 400 V~, type AWT/AWT-AC 221.B10/B13/B16 (cont.) Pos. Part 0001 Compressor 0002 Module, 4-way diverter valve 0003 Liquid separator 0004 High pressure switch 0005 Shut-off valve, hot gas line 0006 Oil separator 0007...
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Page 114: Hydraulic Parameter Report
Commissioning/service reports Hydraulic parameter report Setting and test values Setpoint Commissioning Maintenance/ Service Testing the external heating circuit pumps Circulation pump type Circulation pump stage Overflow valve setting Commissioning, primary circuit Air intake temperature °C ("Diagnosis" "System overview") Ó Air discharge temperature °C ("Diagnosis"... -
Page 115: Control Parameter Report
Commissioning/service reports Control parameter report Parameter description "Vitotronic 200" service instructions System definition Parameters Code Delivered condition Commission- Maintenance/ service "System scheme" (see chapter "System 7000 scheme") ≙ "Temperature differential for calculating 7003 40 ( 4 K) the heating limit" ≙... - Page 116 Commissioning/service reports Control parameter report (cont.) Parameter Code Delivered condition Commission- Maintenance/ service ≙ "Set DHW temperature" 6000 500 ( 50 °C) ≙ "Min. DHW temperature" 6005 100 ( 10 °C) ≙ "Max. DHW temperature" 6006 600 ( 60 °C) ≙...
- Page 117 Commissioning/service reports Control parameter report (cont.) Internal hydraulics Parameter Code Delivered condition Commission- Maintenance/ Service "Heat pump for drying a building" 7300 "Time program for screed drying" 7303 ≙ "Flow temperature for external demand" 730C 500 ( 50 °C) "Starting time high efficiency circulation 7365 Do not adjust pump"...
- Page 118 Commissioning/service reports Control parameter report (cont.) Cooling Parameter Code Delivered condition Commission- Maintenance/ Service "Cooling function" 7100 "Cooling circuit" 7101 ≙ "Set room temperature separate cooling 7102 200 ( 20 °C) circuit" ≙ "Min. flow temperature cooling" 7103 50 ( 5 °C) "Influence room temperature hook-up 7104...
- Page 119 Commissioning/service reports Control parameter report (cont.) Photovoltaics Parameter Code Delivered condition Commission- Maintenance/ service "Enable own energy consumption PV" 7E00 ≙ "Prop. of external current" 7E02 10 ( 10 %) ≙ "Threshold for electrical power" 7E04 0 W) "Enable own energy consumptn for set 7E10 DHW temperature 2"...
- Page 120 Commissioning/service reports Control parameter report (cont.) Communication Parameter Code Delivered condition Commission- Maintenance/ service "Enable LON communication module" 7710 "LON subscriber number" 7777 "LON fault manager" 7779 "LON system number" 7798 "Interval for data transfer via LON" 779C 20 min "Source outside temperature"...
- Page 121 Specification Specification 230 V appliances Type AWT/AWT-AC 221.A04 221.A05 221.A07 221.A10 221.A13 Heating output data to EN 14511 (A2/W35) Rated heating output 3.00 3.70 5.60 7.70 10.60 Fan speed Power consumption 0.91 1.06 1.73 2.20 3.25 Coefficient of performance 3.27 3.50 3.24 3.50...
- Page 122 Specification Specification (cont.) Type AWT/AWT-AC 221.A04 221.A05 221.A07 221.A10 221.A13 Heating water (secondary cir- cuit) Content 16.7 16.7 16.7 17.7 17.7 Minimum flow rate (must be 1000 1000 1600 1600 maintained) Minimum volume in the heating system (cannot be fitted with shut-off devices) Max.
- Page 123 Specification Specification (cont.) Type AWT/AWT-AC 221.A04 221.A05 221.A07 221.A10 221.A13 Refrigerant circuit Refrigerant R410A R410A R410A R410A R410A Refrigerant charge 2.15 2.15 2.95 2.95 ■ Global warming potential 2088 2088 2088 2088 2088 ■ (GWP) equivalent 2.51 4.50 4.50 6.20 6.20 ■...
- Page 124 Specification Specification (cont.) Type AWT/AWT-AC 221.A04 221.A05 221.A07 221.A10 221.A13 Connections Heating water flow Cu 28 x 1 Cu 28 x 1 Cu 28 x 1 Cu 28 x 1 Cu 28 x 1 Heating water return Cu 28 x 1 Cu 28 x 1 Cu 28 x 1 Cu 28 x 1...
- Page 125 Specification Specification (cont.) Type AWT/AWT-AC 221.B10 221.B13 221.B16 Heating output data to EN 14511 (A7/W35, 5 K spread) Rated heating output 10.16 12.07 15.5 Fan speed Air flow rate 3456 4217 4217 Power consumption 2.00 2.57 3.76 Coefficient of performance 5.08 4.69 4.11...
- Page 126 Specification Specification (cont.) Type AWT/AWT-AC 221.B10 221.B13 221.B16 External unit electrical values Rated voltage, compressor 3/N/PE 400 V/50 Hz ■ Max. operating current, com- 7.85 9.89 13.09 ■ pressor Starting current, compressor ■ Starting current, compressor ■ with stalled armature MCB/fuse protection ■...
- Page 127 Specification Specification (cont.) Type AWT/AWT-AC 221.B10 221.B13 221.B16 Integral DHW cylinder Capacity Continuous output for DHW heating from 10 to 60 °C Performance factor N DIN 4708 Max. draw-off rate at the speci- l/min 15.9 16.5 16.9 fied performance factor N DHW heating from 10 to 45 °C Max.
- Page 128 Specification Specification (cont.) Type AWT/AWT-AC 221.B10 221.B13 221.B16 Sound power of external unit at rated heating output (measurements with reference to EN 12102/ EN ISO 9614-2) Weighted total sound power level dB(A) At A7 ± /W55 ± ■ in night mode dB(A) At A7 ±...
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Page 129: Commissioning Order
Preferred appointment: Date Time Date Time The work that is requested to be carried out by Viessmann will be billed in accordance with the latest Viessmann pricelist. Place / Date Signature Final decommissioning and disposal Viessmann products can be recycled. Components and substances from the system are not part of ordi- nary household waste. -
Page 130: Declaration Of Conformity
Vitocal 222-S, type AWT/AWT-AC 221.A and AWT/AWT-AC 221.B including heat pump control unit Vitotronic 200, type WO1C We, Viessmann Werke GmbH & Co. KG, D-35107 Allendorf, declare as sole responsible body that the named product complies with the provisions of the following directives and regulations:... - Page 131 Keyword index Keyword index Casing parts Air discharge.............. 12 – Indoor unit............... 80 Air discharge grille removal........57 Casing spare parts Air intake..............12 – Indoor unit............... 80 Air short circuit............12 Charging Air vent valve, DHW cylinder........69 – Refrigerant circuit............ 52 Air vent valve, secondary circuit.........70 Checking Ambient temperatures..........15...
- Page 132 Keyword index Keyword index (cont.) Cooling control............35 Electrical values Cooling function............63 – External unit..........122, 126 Copper seal ring............28 – Internal unit........... 122, 126 Corrosion damage..........56, 57 Electric booster heater..........63 Cover of outdoor unit, fitting........48 Electricity meter............38 Curve –...
- Page 133 Keyword index Keyword index (cont.) Fuse, checking............76 Installation information..........11 Fuse protection Installation location requirements – Power supply, outdoor unit........43 – Indoor unit............... 15 Fuse rating Installation site, outdoor unit........12 – Power supply for instantaneous heating water Instantaneous heating water heater..45, 46, 63, 69 heater..............
- Page 134 Keyword index Keyword index (cont.) Noise................22 Parameter group selection......... 60 Non-return valve...........31, 54 Parameters NTC curve............75, 76 – Circulation pumps for cylinder heating....62 – Cooling function............63 – DHW circulation pump..........62 Off signal..............45 – Electric booster heater..........63 Oil lift bends...............
- Page 135 Keyword index Keyword index (cont.) Power cable............9, 42 Refrigerant lines – Heat pump control unit..........33 – Connecting.............. 23 – Indoor unit..............9 – Connection............25, 26 – Instantaneous heating water heater......44 – Fitting oil lift bends..........23 – Outdoor unit............10 –...
- Page 136 Keyword index Keyword index (cont.) Siting................13 – Between walls............12 Temperature limiter............ 36 – Conditions............... 11 Temperature sensor........... 74 – External unit............14 – Air intake, evaporator (OAT)....... 71, 72, 73 – Freestanding............11 – Compressor head (CTT)......71, 72, 73 –...
- Page 137 Keyword index Keyword index (cont.) Wind direction.............11 Wind loads..............11...
- Page 140 7514942 7554825 7560750 7560751 7560752 7560753 7560796 7560797 7571584 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...