Installation and service instructions VIESMANN for contractors Vitodens 222-F Type FS2B Compact gas condensing boiler 4.8 to 35 kW natural gas and LPG version For applicability, see the last page VITODENS 222-F 5457 552 GB 2/2010 Please keep safe.
Safety instructions Safety instructions Please follow these safety instructions closely to prevent accidents and material losses. Safety instructions explained Danger This symbol warns against the risk of injury. ! Please note This symbol warns against the risk of material losses and environmental pollution. Note Details identified by the word "Note" contain additional information.
Safety instructions Safety instructions (cont.) If you smell flue gas Danger Flue gas can lead to life-threatening poisoning. ■ Shut down the heating system. ■ Ventilate the boiler room. ■ Close all doors leading to the living space. Working on the system ■ When using gas as fuel, also close the main gas shut-off valve and safeguard against unauthorised reopening. ■ Isolate the system from the power supply and check that it is no longer 'live', e.g.
Index Index Installation instructions Preparing for installation Product information.............................................................................................. Preparing for installation....................................................................................... 6 6 Installation sequence Installing the boiler............................................................................................... Opening the control unit casing..........................................
Index Index (cont.) Weather-compensated control unit...................................................................... 127 Internal extensions............................................................................................... 130 External extensions (accessories)........................................................................ 132 Control functions..................................................................................................
Preparing for installation Product information Vitodens 222-F, FS2B Set up for operation with natural gas E and LL. For conversion to LPG P (without conversion kit), see page 29. The Vitodens 222-F should generally only be delivered to those countries specified on the type plate. For deliveries to alternative countries, an approved contractor, on his own initiative, must arrange individual approval in accordance with the law of the land.
Preparing for installation Preparing for installation (cont.) 410 398 361 320 569 46 A B C D E F D E 50 595 A B 330 220 55 50 q G C F 40 b a 80 50 140 Installation 100 c d e f g h k l m n p 50 Heating flow R ¾ DHW R ½ Gas connection R ¾ Cold water R ½ Heating return R ¾ DHW circulation R ½ (separate accessory) G Condensate drain to the back into the wall H Side condensate drain K Cable entry area 5457 552 GB 600 Rated output range a (mm) b (mm) c (mm) 4.8 to 19 kW 6.
Preparing for installation Preparing for installation (cont.) Rated output range d (mm) e (mm) f (mm) g (mm) h (mm) k (mm) l (mm) m (mm) n (mm) p (mm) q (mm) 4.8 to 19 kW 6.5 to 26 kW 8.8 to 35 kW 1027 1027 1227 1082 1082 1302 1137 1137 1337 1191 1191 1391 1247 1247 1447 1302 1302 1562 1437 1437 1637 1466 1466 1666 1465 1465 1665 1526 1526 1726 201 224 224 Note The adjustable feet give all height measurements a tolerance of +15 mm. 1. Prepare the heating water connections.
Preparing for installation L M 2. Prepare the DHW connections. Install the safety assembly (accessory or on-site provision) in accordance with DIN 1988 in the cold water line (see page 10). Recommendation: Install the safety valve above the DHW cylinder to protect it against contamination, scaling and high temperatures. Connect the drain hose to condensate collector L. Remove plug from condensate collector. 3. Route condensate hose M to the back (drain in wall G) or to the side aperture H (see page 6).
Preparing for installation Preparing for installation (cont.) Safety assembly to DIN 1988 G H K L M Non-return valve Drain Cold water Drinking water filter Pressure reducer to DIN 1988-2, issue Dec.
Installation sequence Installing the boiler Assembling the boiler 6. Installation 2. 5. 4. 2x 3. 1. 5457 552 GB 7.
Installation sequence Installing the boiler (cont.) Connections on the heating water and the DHW side Shown with connection sets for finished walls (accessories) A Heating flow R ¾ B DHW R ½ C DHW circulation R ½ (separate accessory) D Cold water R ½ E Heating return R ¾ DHW connection DHW circulation connection The DHW expansion vessel, available as an accessory, is installed in the cold water supply inside the boiler.
Installation sequence Installing the boiler (cont.) Installation Gas connection Notes regarding operation with LPG. We recommend the installation of an external safety solenoid valve when installing the boiler in rooms below ground level. Note For the tightness test, use only suitable and approved leak detecting agents (EN 14291) and devices. Leak detecting agents with unsuitable constituents (e.g. nitrites, sulphides) can lead to material damage.
Installation sequence Installing the boiler (cont.) ! Please note Excessive test pressure may damage the boiler and the gas valve. Max. test pressure 150 mbar. Where higher pressure is required for tightness tests, separate the boiler and the gas valves from the gas supply pipe (undo the fitting). 3. Vent the gas line. For conversion to a different gas type see page 29 Flue gas connection Connect the balanced flue. Flue gas system installation instructions. Opening the control unit casing 3. 2.
Installation sequence Opening the control unit casing (cont.) 5. 7x Installation 4. Electrical connections Information regarding the connection of accessories For the connection, observe the separate installation instructions provided with the accessory components. Please note Electronic modules can be damaged by electrostatic discharges. Before beginning work, touch earthed objects, such as heating or water pipes, to discharge static loads.
Installation sequence Electrical connections (cont.) A ? aVG D B M 1~ E L1 ! C % N L1 L N N L1 L N L 230V~ 230V~ 7654321 X3 100 35 20 96 40 53 21 A Radio clock receiver B Vitotrol 100 UTDB (only for constant temperature control units) C Vitotrol 100 UTA (only for constant temperature control units) or Vitotrol 100 UTDB-RF wireless receiver (only for constant temperature control units) fÖ Power supply [terminals] ■ Remove any existing individual cores.
Installation sequence Electrical connections (cont.) Installation: ■ North or north-western wall, 2 to 2.5 m above ground level; in multistorey buildings, in the upper half of the second floor ■ Not above windows, doors or ventilation outlets ■ Not immediately below balconies or gutters ■ Never render over ■ Cable length max. 35 m with a cross-section of 1.
Installation sequence Electrical connections (cont.) Routing the connecting cables ! Low voltage connections 230 V connections Internal extension Main PCB E Communication module (accessories) F Cable grommet for power supply cable 5457 552 GB A B C D Please note Connecting cables will be damaged if they touch hot parts. When routing and securing power cables on site, ensure that the maximum permissible temperatures for these cables are not exceeded.
Installation sequence Closing the control unit casing Installation 1. 2. 3. 2x 6. 5. 4. 5457 552 GB Close control unit casing and insert programming unit, packed separately. Note The programming unit can also be used in a wall mounting base (accessory) near the boiler.
Installation sequence Closing the control unit casing (cont.
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 • • 1. Removing the front panels............................................ 23 • • • 2. Filling the heating system.............................................. 23 • 5. Setting the time and date (if required) – only for weather-compensated control units...........................
Commissioning, inspection, maintenance Steps - commissioning, inspection and… (cont.) Commissioning steps Inspection steps Maintenance steps • • 21. Checking the condensate drain and cleaning the siphon.............................................................................. 38 • 22. Checking the neutralising system (if installed) • 23. Checking the anode connection................................... 38 • • • • 24. Testing the anode earth current with an anode tester 39 • • 28.
Commissioning, inspection, maintenance Further details regarding the individual steps Removing the front panels See page 11, steps 1 to 5. Filling the heating system Please note Unsuitable fill water increases the level of deposits and corrosion and may lead to boiler damage. ■ Thoroughly flush the entire heating system prior to filling it with water. ■ Only use fill water of potable quality. ■ Soften fill water with hardness exceeding 3.0 mmol/l e.g.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Note If the control unit has not been switched ON prior to filling the system, then the servomotor of the diverter valve will still be in its central position, and the system will be completely filled. 5. Close boiler drain & fill valve A. Note Lever on valve B must be in the "l.h." position. 2. "Service functions" Activating filling function with weather-compensated control units: 1. Press OK and approx. 4 s.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Selecting the language (if required) – only for weather-compensated control units Extended menu: 1. å 3. "Language" Sprache Deutsch Cesky Dansk English DE ç CZ DK GB Wählen mit Ø Note At the commissioning stage, the display is in German (default setting) 2. "Settings" 4. Set the required language with / .
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Venting the boiler 1. Close the shut-off valves on the heating water side. 2. Remove cover panel A. 3. Connect the drain hose on valve B with a drain. 4. Open air vent valve B and fill valve C in the heating return and vent using mains pressure (flush) until no more air noise can be heard. 5. Close valve B and fill valve C in the heating return, and open the shut-off valves on the heating water side.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Activating venting function with constant temperature control unit: 1. Press OK and approx. 4 s. simultaneously for 2. Select "5" and confirm with OK. When the venting function is activated, "EL on" is shown on the display. 3. Ending venting function: Press . Filling the siphon with water Service B A 5457 552 GB C 1. Pivot control unit forward. 4. Pull off trap C downwards. 2. Pull retaining clip A off.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 6. Check that the condensate pipe is connected correctly to the siphon and heat exchanger. 8. Secure control unit back in operating position. 7. Refit cover panel. Designating heating circuits – only for weather-compensated control units In the delivered condition, the heating circuits are designated "Heating circuit 1", "Heating circuit 2" and "Heating circuit 3" (if installed).
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Gas type conversion (only for operation with LPG) 1. Set adjusting screw A at the gas train to "2". 1 2. Switch ON/OFF switch ON. 2 3. Select the gas type in coding address "82". ■ Call up code 2. ■ Call up "General" (weather-compensated control units) or Group "1" (constant temperature control units). ■ In coding address "11", select value "9". ■ In coding address "82", select value "1" (LPG operation).
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) yes Ignition no Fault EE Check the ignition module (control voltage 230 V across plugs "X2.1" and "X2.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) yes Automatic calibration of the combustion controller no Fault Eb Initiate a heat draw-off. Switch the boiler OFF and ON again. Press reset button R. For further fault details, see page 102. Checking the static and supply pressure Danger CO build-up as a result of an incorrect burner setup can have serious health implications. Carry out a CO test prior to and after work on gas equipment.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 5. Start the boiler. Note During commissioning, the boiler can enter a fault state because of airlocks in the gas line. After approx. 5 s, press the reset button R (see operating instructions) to reset the burner. 7. Record the actual value in the service report on page 157. Take the action shown in the following table. 8.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 4. "Change?" Select "Yes". A value flashes on the display (e.g. "85"). In the delivered condition, this value represents 100 % of rated output. 2. Select Ú "3" and confirm with OK. A value flashes on the display (e.g. "85") and "A" appears. In the delivered condition, this value represents 100 % of rated output. 5. Select required value. 3. Select required value and confirm with OK.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Burner removal 4x 2. Close the gas shut-off valve and safeguard against reopening. 5457 552 GB 1. Switch ON/OFF switch at the control unit and the main power supply OFF.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3. Pull electrical cables from fan motor A, gas valve B, ionisation electrode C, ignition unit D and earth tab E. 4. Release gas supply pipe fitting F. 5. Release four nuts G and remove the burner. ! Please note Prevent damage to the wire gauze. Never rest the burner on the gauze assembly.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Remove electrodes B. 2. Undo three retaining clips C at thermal insulation ring D and remove thermal insulation ring D. 4. Insert and secure a new burner gauze assembly E with a new gasket F. Torque: 3.5 Nm. 5. Refit thermal insulation ring D. 3. Undo four Torx screws and remove burner gauze assembly E with its gasket F. 6. Refit electrodes B. Torque: 2.5 Nm.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 3. Thoroughly flush heat exchanger A with water. 4. Install the burner. Fit the screw with a serrated washer and the remaining screws, then torque diagonally with 4 Nm. 5. Fit the gas supply pipe with a new gasket. 6. Check the gas connections for tightness. 1. Use a vacuum cleaner to remove residues from heat exchanger A inside the combustion chamber. 7.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the condensate drain and cleaning the siphon 1. Check that the condensate can drain freely at the siphon. 2. Pull retaining clip A off. 3. Pull filler pipe B upwards. 4. Pull off trap C downwards. 5. Pull the condensate hose from trap C. 6. Clean the siphon. 7. Fill siphon with water and reassemble. B 8. Check that the condensate pipe is connected correctly to the siphon and heat exchanger.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. 2. A Magnesium anode B Earth cable Testing the anode earth current with an anode tester 5457 552 GB Service Note We recommend that the magnesium anode function is checked annually. This function test can be carried out without interrupting operation, by measuring the earth current with an anode tester.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 1. Remove cover A. 5457 552 GB 2. Pull earth lead B from tab C. 3. Connect the tester (up to 5 mA) in series between tab C and earth cable B. ■ The anode is OK if the indicated current is > 0.3 mA. ■ Visually inspect the anode if the current measures < 0.3 mA, or if there is no current at all (see page 43).
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Draining the boiler on the DHW side 1. Connect hose to drain valve and route into a suitable container or drain outlet. Note Ensure adequate ventilation in the DHW pipework. 5457 552 GB Service 2. Turn drain valve from lever position A to lever position B or C as required. ■ Lever position B: Drain heating system excluding cylinder via the cold water connection.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Cleaning the primary store Note EN 806 specifies a visual inspection and (if required) cleaning every two years after the cylinder has been taken into use and thereafter according to requirements. 8x 1. 2. 3. 1. Drain the primary store. 2. Remove flange lid A. 3. Disconnect the primary store from the pipework to prevent contamination from entering the pipe system. 4.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking and replacing the magnesium anode (if required) Check the magnesium anode. If it is discovered that the anode has degraded to 10 to 15 mm Ø, we recommend replacing the magnesium anode. Returning the primary store into use 1. Reconnect the primary store to the pipework. 4. Push earth cable C onto tab. 5. Fit cover E. 6. Fill the primary store with drinking water. Service 2.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the diaphragm expansion vessel and system pressure Note Carry out this test on a cold system. 1. Drain the system, until the pressure gauge indicates "0". 2. If the diaphragm expansion vessel inlet pressure is lower than the static system pressure: Top up with nitrogen via connection A, until the inlet pressure is 0.1 to 0.2 bar. 5457 552 GB 3.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Checking the pre-charge pressure and the DHW expansion vessel (if installed) 1. Check the static pressure of the DHW line downstream of the pressure reducer and adjust if required. Set value: max. 3.0 bar 2. Close the on-site shut-off valve in the cold water line. 3. Turn lever on valve A to the "front" position. 4. Check the pre-charge pressure of the DHW expansion vessel and adjust if required.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Note Operate the appliance with uncontaminated combustion air to prevent operating faults and damage. CO2 or O2 content ■ The CO2 content must be within the following limits (upper and lower output): – 7.7 to 9.2 % for natural gas E and LL – 9.3 to 10.9 % for LPG P ■ For all gas types, the O2 content must be between 4.4 % and 6.9 %.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Selecting the upper/lower output for weather-compensated control units: 1. Press OK and approx. 4 s. 2. Select Ú " " and confirm with OK. The display shows "I" and "on" flashes. simultaneously for 2. "Actuator test" 3. Select the lower output: Select "Base load" "ON" and confirm with OK. 4. Select the upper output: Select "Full load" "ON" and confirm with OK. 3.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.
Commissioning, inspection, maintenance 35 Boiler water or flow temperature in °C 1.6 1.8 2.0 2.8 1.4 80 1.2 70 1.0 60 0.8 50 B 0.6 40 30 3 Se 0 2 t ro 5 om 10 5 tem 20 per 15 atu 1 re in ° 0 5 C Slope 2.6 2.4 2.2 3.0 90 3.4 3.2 Further details regarding the individual steps (cont.) 0.4 A 0.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Changing the slope and level 90 Adjusting the set room temperature Standard room temperature 3.5 Boiler water or flow temperature in °C 90 A 1.4 A B C 26 +2 0 B -20 0.2 +20 -20 Outside temperature in °C A Changing the slope B Changing the level (vertical parallel offset of the heating curve) Extended menu: 1.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Boiler control unit LON Subscriber no. 1 Code "77:1" Control unit is fault manager Code "79:1" Control unit transmits the time Code "7b:1" Control unit transmits outside temperature Set code "97:2" LON subscriber fault monitoring Code "9C:20" Vitotronic 200-H Vitotronic 200-H LON LON Subscriber no.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) 4. Select subscriber (e.g. subscriber 10). The subscriber check for the selected subscriber is introduced. ■ Successfully tested subscribers are designated with "OK". ■ Unsuccessfully tested subscribers are designated with "Not OK". Note If the subscriber check is carried out by another control unit, the subscriber number and "Wink" are shown on the display for approx. 1 min.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Constant temperature control unit Reset code 24:1 to 24:0. 5457 552 GB Service Note The selected service parameters for hours run and time interval restart at 0.
Commissioning, inspection, maintenance Further details regarding the individual steps (cont.) Fitting the front panels 4. 1. 2. 2x 5. 3. The system installer must hand the operating instructions to the system user and instruct him/her in the operation of the system.
Code 1 Calling up coding level 1 Note ■ On weather-compensated control units, codes are displayed as plain text. ■ Codes that have no function due to the heating system equipment level or the setting of other codes are not displayed. ■ Heating systems with one heating circuit without mixer and one or two heating circuits with mixer: The heating circuit without a mixer is designated "Heating circuit 1" and the heating circuits with mixer as "Heating circuit 2" or "Heating circuit 3".
Code 1 General/Group "1" Select "General" for weather-compensated control units (see page 61). Select "1" for constant temperature control units (see page 61). Coding Coding in the delivered condition System design 00:2 System version 1: One heating circuit without mixer (A1), with DHW heating Value System address version 00: ...
Code 1 General/Group "1" (cont.) Coding in the delivered condition Possible change Internal circulation pump function 51:0 Internal circulation pump 51:1 System with low loss always starts when there header: is a heat demand When there is a heat demand, the internal circulation pump only starts when the burner is operational (with pump run-on).
Code 1 General/Group "1" (cont.) Coding in the delivered condition Set flow temperature for ext. demand 9b:70 Set flow temperature in case of external demand 70 °C Possible change 9b:0 to 9b:127 Set flow temperature for external demand adjustable from 0 to 127 °C (limited by boiler-specific parameters) Boiler/Group "2" Select "Boiler" for weather-compensated control units (see page 61). Select "2" for constant temperature control units (see page 61).
Code 1 DHW/Group "3" Select "DHW" for weather-compensated control units (see page 61). Select "3" for constant temperature control units (see page 61).
Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) Parameter address A5:... 5 6 7 to 15 With heating circuit pump logic function: Heating circuit pump "OFF" AT > RTset + 1 K AT > RTset AT > RTset - 1 K AT > RTset - 9 K Coding in the delivered condition Summer eco function absolute A6:36 Extended economy function disabled (only for weather-compensated control units) A6:5 to A6:35 Extended economy control enabled, i.e.
Code 1 5457 552 GB Coding in the delivered condition Possible change Pump idle time, transition red.
Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) Parameter address b5:...
Code 1 Heating circuit 1, heating circuit 2, heating… (cont.
Code 1 Heating circuit 1, heating circuit 2, heating… (cont.
Code 1 Heating circuit 1, heating circuit 2, heating… (cont.) 5457 552 GB Service Coding in the delivered condition Possible change Increase set flow temperature FA:20 Raising the set boiler FA:0 Temperature rise adjustawater temperature or the to ble from 0 to 50 % set flow temperature FA:50 when changing from operation with reduced room temperature to operation with standard room temperature, by 20 %.
Code 2 Calling up coding level 2 Weather-compensated control unit: 1. Press OK and å simultaneously for approx. 4 s. 2. Press OK and ä simultaneously for approx. 4 s. 3. "Coding level 2" 4. Select group of required coding address: ■ "General" ■ "Boiler" ■ "DHW" ■ "Heating circuit 1/2/3" ■ "All cod. or solar" In this group, all coding addresses are displayed in ascending order. 5. Select coding address. 72 6. Select value according to the following tables and confirm with "OK". 7.
Code 2 Calling up coding level 2 (cont.) 7. If you want to reset all codes to their delivered condition: Select Ú "7" and confirm with OK. When " " flashes, confirm with OK. Note This also resets codes from coding level 1. General/Group "1" Select "General" for weather-compensated control units (see page 72). Select "1" for constant temperature control units (see page 72).
Code 2 General/Group "1" (cont.
Code 2 General/Group "1" (cont.) Possible change 3A:1 Function input DE1: Heating program changeover 3A:2 Function input DE1: External demand with set flow temperature. Function internal circulation pump: Coding address 3F 3A:3 Function input DE1: External blocking.
Code 2 General/Group "1" (cont.) Possible change 3b:1 Function input DE2: Heating program changeover 3b:2 Function input DE2: External demand with set flow temperature. Function internal circulation pump: Coding address 3F 3b:3 Function input DE2: External blocking.
Code 2 Coding in the delivered condition 3C:0 Function input DE3 at extension EA1: No function 3d:5 5457 552 GB 3E:0 DHW circulation pump runtime for brief operation: 5 min Internal circulation pump stays in control mode at signal "External blocking" Possible change 3C:1 Function input DE3: Heating program changeover 3C:2 Function input DE3: External demand with set flow temperature. Function internal circulation pump: Coding address 3F 3C:3 Function input DE3: External blocking.
Code 2 General/Group "1" (cont.) 51:0 52:0 54:0 6E:50 76:0 77:1 Possible change 3F:1 Internal circulation pump stops at signal "External demand" 3F:2 Internal circulation pump starts at signal "External demand" Internal circulation pump 51:1 System with low loss always starts when there header: is a heat demand When there is a heat demand, the internal circulation pump only starts when the burner is operational (with pump run-on).
Code 2 General/Group "1" (cont.
Code 2 General/Group "1" (cont.) Coding in the delivered condition 8F:0 All control elements active 90:128 94:0 95:0 97:0 98:1 5457 552 GB 99:0 9A:0 9b:70 Possible change 8F:1 All control elements locked out 8F:2 Only standard settings can be controlled Time constant for calcu- 90:1 Fast (low values) or slow lating the adjusted outto (high values) matching of side temperature 21.
Code 2 General/Group "1" (cont.) Coding in the delivered condition 9C:20 Monitoring LON subscribers. If a subscriber fails to respond, the values specified inside the control unit will be used after 20 min. Only then will a fault message be issued.
Code 2 Boiler/Group "2" (cont.
Code 2 DHW/Group "3" (cont.) Coding Coding in the delivered condition 56:0 Set DHW temperature adjustable from 10 to 60 °C Possible change 56:1 Set DHW temperature adjustable from 10 to above 60 °C 58:0 Without auxiliary function 58:10 for DHW heating to 58:60 59:0 Cylinder heating: Starting point -2.5 K Stopping point +2.
Code 2 DHW/Group "3" (cont.) Coding in the delivered condition Possible change 65:... Information regarding the type of diverter valve (not adjustable): 0: no diverter valve 1: Viessmann diverter valve 2: Wilo diverter valve 3: Grundfos diverter valve 6C:100 6F:...
Code 2 Heating circuit 1, heating circuit 2, heating… (cont.
Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition Possible change A4:0 With frost protection (only A4:1 No frost protection; this setfor weather-compensating is only possible if code ted control units) "A3: -9" has been selected.
Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) A7:0 A8:1 5457 552 GB A9:7 Possible change A6:5 Extended economy control to enabled, i.e. the burner and A6:35 heating circuit pump will be switched OFF and the mixer closed at a variable adjustable value between 5 and 35 °C plus 1 °C. Base value is the adjusted outside temperature. This value is based on the actual outside temperature and a time constant that takes the cooling down of an average building into consideration.
Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Parameter address b5:...
Code 2 Heating circuit 1, heating circuit 2, heating… (cont.
Code 2 Heating circuit 1, heating circuit 2, heating… (cont.
Code 2 Heating circuit 1, heating circuit 2, heating… (cont.
Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Coding in the delivered condition F6:25 In the "Only DHW" operating mode, the internal circulation pump is permanently ON (only for constant temperature control units) F7:25 F8:-5 5457 552 GB F9:-14 Possible change F6:0 In the "Only DHW" operating mode, the internal circulation pump is permanently OFF F6:1 In the "DHW only" operatto ing mode, the internal cirF6:24 culation pump will be started for 10 min respectively 1 to 24 times per day.
Code 2 Heating circuit 1, heating circuit 2, heating… (cont.) Possible change FA:0 Temperature rise adjustato ble from 0 to 50 % FA:50 Fb:0 to Fb:150 Duration adjustable from 0 to 300 min; one step ≙ 2 min 5457 552 GB Service Coding in the delivered condition FA:20 Raising the set boiler water temperature or the set flow temperature when changing from operation with reduced room temperature to operation with standard room temperature, by 20 %.
Diagnosis and service scans Calling up the service menu Only for weather-compensated control units Press OK and å simultaneously for approx. 4 s. Service menu overview Service Diagnosis Actuator test Coding level 1 Coding level 2 General Heating circuit 1 Heating circuit 2 Heating circuit 3 DHW Brief scan Reset data HC1 HC2 HC3 Fault history Service functions Terminate service? Subscriber check Service PIN Service reset Filling Venting Max.
Diagnosis and service scans Diagnosis (cont.) Note "- - -" appears on the display if a sensor that has been scanned is faulty. Calling up operating data 3. Select required group, e.g. "General". Weather-compensated control unit Constant temperature control unit 1. Press OK and å simultaneously for approx. 4 s. Operating instructions, chapter "Scanning information" 2. "Diagnosis" Resetting operating data Saved operating data (e.g. hours run) can be reset to 0.
Diagnosis and service scans Diagnosis (cont.
Diagnosis and service scans Diagnosis (cont.
Diagnosis and service scans Diagnosis (cont.) For explanations of individual scans, see the following table: Brief scan Display 0 System schemes 1 to 2 1 Software version 0 Burner control unit External hook-up 0 - 10 V Display in °C 0: no external hook-up Set boiler water temperature Highest demand temperature Burner control unit type Appliance type Set cylinder temperature Max.
Diagnosis and service scans Diagnosis (cont.
Diagnosis and service scans Checking outputs (relay test) (cont.) Display Start valve Heating Start valve centre Start valve cylinder Start htg circ pump HC2 Open mixer HC2 Close mixer HC2 Start htg circ pump HC3 Open mixer HC3 Close mixer HC3 Start outp. int. exten.
Diagnosis and service scans Checking outputs (relay test) (cont.
Troubleshooting Fault display Weather-compensated control unit If there is a fault, the red fault indicator A flashes. " " flashes on the display and "Fault" is shown. A R 1 2 0 3 4 bar The fault code is displayed with OK. For an explanation of the fault code, see the following pages. For some faults, the type of fault is also displayed in plain text. Calling up acknowledged faults Select "Fault" in the standard menu. The current faults will be displayed in a list.
Troubleshooting Fault display (cont.) Constant temperature control unit If there is a fault, the red fault indicator A flashes. The two-digit fault code and (subject to the type of fault) " " or " " flash on the programming unit display. A A fault messaging facility, if connected, will be switched OFF. If an acknowledged fault is not remedied, the fault message will be re-displayed the following day and the fault message facility restarted. Calling up acknowledged faults R 1 2 0 Press OK for approx.
Troubleshooting Fault codes Displayed fault code 10 Const. Weath.- System charcomp.
Troubleshooting Fault codes (cont.) Const. 4C Weath.- System charcomp.
Troubleshooting Fault codes (cont.) Displayed fault code A9 Const. b0 X X b1 X X Control mode as per delivered condition b5 X X b7 X X Control mode as per delivered condition Burner blocked Boiler coding card faulty b8 X X Cause X Internal circu- Check the circulalation pump tion pump blocked X The burner operates at its lower output if a heating circuit with mixer is connected. The burner is blocked if only one heating circuit without mixer is connected.
Troubleshooting Fault codes (cont.) Const. Weath.- System charcomp.
Troubleshooting Fault codes (cont.) Displayed fault code C4 Const. Weath.- System charcomp. acteristics Cause Measures X X Control mode Check Open Therm extension C5 X X Control mode, max. pump speed X Control mode, max. pump speed X Control mode, max. pump speed X Control mode, max.
Troubleshooting Fault codes (cont.) Const. Weath.- System charcomp. acteristics Cause Measures X X Control mode Check electrical connections X Control mode Communication error, ext.
Troubleshooting Displayed fault code dd Const. Weath.- System charcomp.
Troubleshooting Fault codes (cont.) Displayed fault code Eb Const. Weath.- System charcomp. acteristics X X EC X X Ed X X EE X X Cause Measures 111 Service Initiate a heat draw-off. Switch the boiler OFF and ON again. Press reset button R. Burner in a fault Parameter Press reset button state fault during R or calibration replace boiler coding card and press reset button R. Burner in a fault Internal fault Replace the control state unit.
Troubleshooting Fault codes (cont.) Displayed fault code EF Const. Weath.- System charcomp. acteristics X X F0 X X F1 X X F2 X X F3 X X 112 Cause Measures Check the gas supply (gas pressure and gas flow limiter), check the flue gas/ventilation air system for flue gas recirculation, check the ionisation electrode (replace if required). Press reset button R. Burner blocked Internal fault Replace the control unit.
Troubleshooting Fault codes (cont.) Const. Weath.- System charcomp. acteristics X X F9 X X FA X X FC X X Fd X X Cause Measures Burner in a fault The fuel valve Check the gas state closes too train. Check both late control paths. Press reset button R. Burner in a fault Fan speed Check the fan, the state too low during fan connecting burner start cables and power supply; check the fan control. Press reset button R.
Troubleshooting Fault codes (cont.) Const. Weath.- System charcomp. acteristics Cause X X Burner blocked Boiler coding or in a fault card or main state PCB faulty FF X X Burner blocked Internal fault or in a fault or reset butstate ton R blocked Measures Press reset button R. Replace boiler coding card or control unit if the fault persists. Start the appliance again. Replace the control unit if the appliance will not restart.
Troubleshooting Repairs Putting control unit in maintenance position If required for commissioning and servicing, the control unit can be put in a different position. 1. 2. 5457 552 GB Service 3.
Troubleshooting Repairs (cont.) Draining the boiler on the heating water side 1. Close the shut-off valves on the heating water side. 3. Open drain valve A and drain the boiler as much as required. 2. Route hose at drain valve A into a suitable container or drain outlet. Checking the outside temperature sensor (weather-compensated control unit) 200 100 80 60 40 20 10 8 6 -20 -10 0 10 20 30 Temperature in °C 1. Pull plug "X3" from the control unit.
Troubleshooting Repairs (cont.) 2. Test the resistance of the outside temperature sensor across terminals "X3.1" and "X3.2" on the disconnected plug and compare it with the curve. 3. Where actual values deviate severely from the curve values, disconnect the wires at the sensor and repeat test on the sensor itself. 5457 552 GB Service 4. Subject to result, replace the lead or the outside temperature sensor.
Troubleshooting Repairs (cont.
Troubleshooting Repairs (cont.) 1. ■ Boiler water temperature sensor Pull the leads from boiler water temperature sensor A and check the resistance. ■ Cylinder temperature sensor Pull plug % from the cable harness at the control unit and check the resistance. ■ Flow temperature sensor Pull plug "X3" from the control unit and check the resistance across terminals "X3.4" and "X3.5". 2. Check the sensor resistance and compare the actual values with the curve. 10 8 6 4 2 1 0.8 0.6 0.
Troubleshooting Repairs (cont.) Checking the outlet temperature sensor 1. Pull the leads from outlet temperature sensor A. 10 8 6 4 2 1 0.8 0.6 0.4 10 30 50 70 90 110 Temperature in °C 2. Check the sensor resistance and compare it with the curve. 3. Replace the sensor in case of severe deviation. Danger The outlet temperature sensor is immersed in the DHW (risk of scalding). Drain the DHW side of the boiler before replacing the sensor.
Troubleshooting Repairs (cont.) Checking the flue gas temperature sensor The flue gas temperature sensor locks out the boiler when the permissible flue gas temperature is exceeded. Reset the interlock after the flue system has cooled down by pressing reset button R. 1. Pull the leads from flue gas temperature sensor A. 3. Replace the sensor in case of severe deviation. 2 1 0.8 0.6 0.4 10 30 50 70 90 110 Temperature in °C 121 Service 10 8 6 4 2.
Troubleshooting Repairs (cont.) Checking the plate heat exchanger 1. Shut off and drain the boiler on its heating water and DHW side. 4. Push insulating mat A upwards and remove. 2. Release the side closures and pivot the control unit forward. 5. Undo two screws B and pull out plate heat exchanger C to the front. 3. Remove the siphon (see page 27). 122 5457 552 GB Note Drain the boiler on its heating water and DHW side.
Troubleshooting Repairs (cont.) 6. Check the connections on the heating water and DHW side for contamination and scaling; if required, replace the plate heat exchanger. 7. Install in reverse order with new gaskets. Checking the temperature limiter If the burner control unit cannot be reset after a fault shutdown, although the boiler water temperature is below approx. 75 °C, check the following: 1. Pull the leads from temperature limiter A. 2.
Troubleshooting Repairs (cont.) Checking the fuse F1 1. Switch OFF the power. 3. Remove cover A. 2. Release the side closures and pivot the control unit down. 4. Check fuse F1 (see connection and wiring diagram).
Troubleshooting Repairs (cont.) Checking the rotational direction of the mixer motor After being switched ON, the boiler implements a self-test. During this, the mixer is opened and closed again. Note the rotational direction of the mixer motor during its self-test. Then set the mixer manually to "Open" again. Note The flow temperature sensor must now capture a higher temperature. If the temperature drops, either the motor is turning in the wrong direction or the mixer set is incorrectly fitted.
Function description Constant temperature control unit °C 48 s A Heating mode The selected set boiler water temperature will be maintained when a demand is being raised by the room thermostat and the heating program is set to DHW and central heating "G". The boiler water temperature will be maintained at the default frost protection temperature when there is no demand. The electronic temperature limiter inside the burner control unit limits the boiler water temperature.
Function description Constant temperature control unit (cont.) Boosting when DHW is drawn off When DHW is drawn off, cold water enters at the bottom of the primary cylinder. The heating circuit pump is switched ON and the three-way diverter valve is changed over, if the cylinder temperature sensor recognises a temperature lower than the set temperature. ■ The cylinder primary pump is switched ON if the boiler water temperature ≥ set DHW temperature.
Function description Weather-compensated control unit (cont.) Heating mode The control unit determines a set boiler water temperature subject to outside temperature or room temperature (if a room temperature-dependent remote control is connected) and to the slope/ level of the heating curve. The determined set boiler water temperature is transferred to the burner control unit.
Function description Weather-compensated control unit (cont.) The DHW is controlled to the specified temperature via the cylinder temperature sensor. The primary cylinder continues to be heated up after the draw off process has terminated, until the set DHW temperature has been reached at the cylinder temperature sensor. The cylinder primary pump and the three-way diverter valve remain ON for a further 30 s.
Function description Internal extensions Internal extension H1 An external safety valve can be connected to gD. 5457 552 GB The internal extension H1 is integrated into the control unit casing. The cylinder primary pump is connected to relay output sK.
Function description Internal extensions (cont.) Internal extension H2 (accessories) Service An external extractor interlock can be connected to aBJ. 5457 552 GB The internal extension H2 is integrated into the control unit casing instead of the internal extension H1. The cylinder primary pump is connected to relay output sK.
Function description External extensions (accessories) Extension AM1 Circulation pump Circulation pump Power supply [terminals] fÖA Power supply terminal for additional accessories aVG KM BUS 5457 552 GB A1 A2 fÖ 132
Function description External extensions (accessories) (cont.) Functions One of the following circulation pumps can be connected to each of the terminals A1 and A2: ■ Heating circuit pump for the heating circuit without mixer ■ Circulation pump for cylinder heating ■ DHW circulation pump Function DHW circulation pump sK Heating circuit pump sÖ Select the function for these outputs via the codes on the boiler control unit: ■ Output A1: Code 33 ■ Output A2: Code 34 Code Output A2 34:0 (delivered cond.
Function description External extensions (accessories) (cont.
Function description External extensions (accessories) (cont.) Digital data inputs DE1 to DE3 The following functions can be connected alternatively: ■ External heating program changeover for each heating circuit ■ External blocking ■ External blocking with fault message input ■ External demand with minimum boiler water temperature ■ Fault message input ■ Short operation of the DHW circulation pump The hooked-up contacts must correspond to protection class II.
Function description External extensions (accessories) (cont.) Function assignment Select the function of output aBJ via code 36 at the boiler control unit. Control functions External heating program changeover The "External heating program changeover" function is connected via extension EA1. There are 3 inputs available at extension EA1 (DE1 to DE3).
Function description Control functions (cont.) Heating program changeover No heating program changeover Duration of the heating program changeover 1 to 12 hours Code F2:0 F2:1 to F2:12 The heating program changeover stays enabled for as long as the contact remains closed, but at least as long as the duration selected in coding address "F2".
Function description Control functions (cont.) External demand Input DE1 Input DE2 Input DE3 The effect on the internal circulation pump is selected with code 3F. The effect on the relevant heating circuit pump is selected with code d7. Code 3A:2 3b:2 3C:2 The minimum set boiler water temperature in case of external demand is selected in coding address "9b".
Function description Control functions (cont.) When the screed drying function is activated, the heating circuit pump of the mixer circuit is switched ON and the flow temperature will be held in accordance with the selected profile. After completion (30 days), the mixer circuit will again be regulated automatically via the set parameters. Observe EN 1264. The report to be provided by the heating contractor must contain the following heat-up details: ■ Heat-up data with respective flow temperatures ■ Max.
Function description Control functions (cont.
Function description Control functions (cont.) Flow temperature °C Temperature profile 6: Code "F1:6" 60 50 40 30 20 10 1 5 10 15 20 25 30 Days 25 30 Days Flow temperature °C Temperature profile 7: Code "F1:15" 50 40 30 20 10 1 5 10 15 20 Raising the reduced room temperature Service The outside temperature limits for the start and end of the temperature raising can be adjusted via coding addresses "F8" and "F9".
Function description Control functions (cont.) Example using the settings in the delivered condition Boiler water or flow temperature in °C 90 80 A 70 60 50 B 40 35 30 30 Se t ro 25 om tem 20 10 5 per 15 atu 1 re in ° 0 5 C 0 -5 -10 -15 -20 Outside temp.
Function description Control functions (cont.
Function description Assigning the heating circuits to the remote control The heating circuit assignment must be configured when commissioning the Vitotrol 200A or Vitotrol 300A.
Function description Electronic combustion controller (cont.) Air factor λ – CO2/O2 content Air factor λ O2 content (%) CO2 content (%) for natural gas H 1.24 4.4 9.2 1.27 4.9 9.0 1.30 5.3 8.7 1.34 5.7 8.5 1.37 6.1 8.3 1.40 6.5 8.1 1.44 6.9 7.8 CO2 content (%) for LPG P 10.9 10.6 10.3 10.0 9.8 9.6 9.3 5457 552 GB Service To achieve an optimum combustion control, the system regularly carries out an automatic self-calibration; also after a power failure (shutdown).
Designs A1 X...
Designs 5457 552 GB Service External connection diagram A1 A2 A3 Main PCB Power supply unit Optolink A4 A5 A6 Burner control unit Programming unit Coding card 147
Designs External connection diagram (cont.) A7 A8 A9 S1 S2 X...
Parts lists 5457 552 GB Spare parts information Quote the part and serial no. (see type plate) and the item number of the required part (as per this parts list). Obtain standard parts from your local supplier.
Parts lists Parts lists (cont.) 115 117 130 131 133 134 137 138 140 141 142 143 160 162 163 164 166 167 171 172 200 202 204 205 206 207 208 300 *2 *3 O-ring 8 x 2 (5 pce.) Locking clip, condensate drain Drain plug (set) Cap Hose 7 10 x 1.
Parts lists Parts lists (cont.
Parts lists Parts lists (cont.
Parts lists Parts lists (cont.
Parts lists Parts lists (cont.
Parts lists Parts lists (cont.
Parts lists Parts lists (cont.
Commissioning/service reports Commissioning/service reports Setting and test values Static pressure Set value Date: By: mbar Supply pressure (flow pressure) mbar = for natural gas H mbar = for LPG Tick gas type Carbon dioxide content CO2 ■ at lower output ■ at upper output Oxygen content O2 ■ at lower output ■ at upper output Service max. 57.5 mbar 17.4-25 mbar 25-47 mbar % by vol. % by vol. % by vol. % by vol.
Specification Specification Rated voltage Rated frequency Rated current Protection class IP rating 230 V 50 Hz 6A I IP X 4 D to EN 60529 Permissible ambient temperature ■ during operation 0 to +40 °C ■ during storage and transport -20 to +65 °C Gas boilers Rated output range at TV/TR 50/30 °C for DHW heating Rated thermal load range for central heating Power consumption (max.) with two-stage pump with variable speed, high efficiency pump Connection values in relation to the max.
Certificates Declaration of conformity Declaration of conformity for the Vitodens 222-F We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, confirm as sole responsible body that the product Vitodens 222-F complies with the following standards: DIN 4753 EN 483 EN 625 EN 677 EN 806 EN 12897 EN 55 014 EN 60 335-1 EN 60 335-2-102 EN 61 000-3-2 EN 61 000-3-3 EN 62 233 In accordance with the following Directives, this product is designated _-0085: 97/23/EC 92/42/EEC 2004/108/EC 2006/ 95/EC 2009/142/EC This pr
Certificates Manufacturer's certificate according to the 1st BImSchV [Germany] We, Viessmann Werke GmbH&Co KG, D-35107 Allendorf, confirm that the product Vitodens 222-F complies with the NOx limits specified by the 1st BImSchV paragraph 7 (2) [Germany]. Allendorf, 1 February 2010 Viessmann Werke GmbH&Co KG 5457 552 GB pp.
Keyword index Keyword index A Acknowledging a fault display..........102 B Boiler draining ■ DHW side.......................................41 Boiler temperature sensor................118 Boosting DHW heating.....................129 Brief scans.........................................95 Burner gasket.....................................35 Burner gauze assembly.....................35 Burner installation..............................36 Burner removal..................................
Keyword index Keyword index (cont.) I Ignition...............................................36 Ignition electrodes..............................36 Ionisation electrode............................36 L Language selection............................25 LON....................................................56 ■ Fault monitoring..............................57 ■ Setting subscriber numbers............56 LON communication module..............56 LON subscriber check........................
5457 552 GB
Viessmann Limited Hortonwood 30, Telford Shropshire, TF1 7YP, GB Telephone: +44 1952 675000 Fax: +44 1952 675040 E-mail: info-uk@viessmann.com chlorine-free bleached paper Printed on environmentally friendly, Viessmann Werke GmbH&Co KG D-35107 Allendorf Telephone: +49 6452 70-0 Fax: +49 6452 70-2780 www.viessmann.com Subject to technical modifications. Compact gas condensing boiler Type FS2B from serial no. 4.8 to 19 kW 7438 004 ... , 7438 007 ... 6.5 to 26 kW 7438 005 ... , 7438 008 ... 8.
