Velux TFF 200 Directions For Use Manual
Velux TFF 200 Directions For Use Manual

Velux TFF 200 Directions For Use Manual

Solar hot water unit

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TFF 200/300/400 0201

Directions for use

Warning to the user
a. Do not remove or adjust any component part of this unvented water heater. Contact the installer.
b. If this unvented water heater develops a fault, such as a flow of hot water from the discharge pipe, switch the heater off
and contact the installer.
Warning to the installer
a. This installation is subject to Building Regulation approval. Notify the Local Authority of an intention to install.
b. Use only manufacturer's recommended replacement parts.
c. Installed by:
Name:
Address:
Phone no.:
Completion date:
VAS 451890 - 0207

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Summary of Contents for Velux TFF 200

  • Page 1: Directions For Use

    TFF 200/300/400 0201 Directions for use Warning to the user a. Do not remove or adjust any component part of this unvented water heater. Contact the installer. b. If this unvented water heater develops a fault, such as a flow of hot water from the discharge pipe, switch the heater off and contact the installer.
  • Page 2 Figures and illustrations used. Due to the possibility of setting and printing errors, and to the need for continuous technical change, please understand that we cannot accept liability for the correctness of the data. The current version of the General Terms of Business applies.
  • Page 3: Table Of Contents

    Thermical solar systems and their components. spected as well as directives of respective countries: 1.1 Storing When receiving the VELUX solar hot water unit and before installation please store in an upright position in a dry and weather secure storing facility.
  • Page 4: Installing The Storage Tank

    Components check list: Before commencing installation, check that all components for your VELUX solar hot water unit are contained in the package. The following components are supplied as standard with your VELUX solar hot water unit: • Cold water combination valve pack ...
  • Page 5 Solar flow Solar return Check valve Stop valve Discharge Water main Please note! Cylinder relief valve connections should not be used for any other purpose and no valves should be fitted between the expansion valve and the storage cylinder. 5 VELUX...
  • Page 6 For connection of unvented kit components to the cold water inlet. ITEM DESCRIPTION INSTRUCTION TPR valve Factory fitted Motorised valve See paragraph 2.4 Thermal cutout Factory fitted Motorised valve See paragraph 2.4 Solar pump and control See section l & ll 6 VELUX...
  • Page 7: Discharge Pipework

    Exam- ples of acceptable discharge arrangements are: 7 VELUX...
  • Page 8 18 m 1.4 m 42 mm up to 27 m 1.7 m 35 mm up to 9 m 1.4 m 28 mm 42 mm up to 18 m 1.7 m 54 mm up to 27 m 2.3 m 8 VELUX...
  • Page 9: Connection Diagram

    See instruction supplied with the valve. NB: High limit stat to be set at 80-85°C. 2.5 Dual thermostat Control Limit 2.5.1 Connection diagram °c °c High limit stat is set at 80-85°C. Control stat is set at 70-75°C. °c 9 VELUX...
  • Page 10: Commissioning The Storage Tank

    2 years for the first time (after that annually) and replaced if necessary. In hard water areas scaling can be reduced by restricting the water temperature. For descaling see section 8. 10 VELUX...
  • Page 11: Electrical Heating Element

    The country- Only electrical heating elements with thermostat specific regulations in effect must be observed. and thermal cut-out from VELUX should be used for The electrical heater (if applicable) must be descaled this product. annually and also at regular intervals depending on Note: Electrical heating elements must never be the hardness of the water.
  • Page 12: Spare Parts

    7.2 Spare parts A full range of spare parts are available for the VELUX solar hot water system range. Refer to the Technical Data label on the unit to identify the model installed and ensure the correct part is ordered.
  • Page 13: Maintanence

    Maintenance should be carried out if fitted. To do this the VELUX unit will need to be by a competent person and any replacement parts drained.
  • Page 14: Technical Specifications

    8.6 Log Book On completion of any maintenance or service of the VELUX Solar Hot Water Unit fill-in a record of actions taken and the date the work was undertaken. The record should be kept with the instruction for use.
  • Page 15 SECTION I: TANK INSTALLATION Specifications (continuation) TFF 200 TFF 300 TFF 400 0201 0201 0201 Performance indicator N / kW 4.2 / 31 4.1 / 45 9.4 / 51 bottom Heating flow, HV 1" 1" 1" 1147 1424 1355 Heating return, HR 1"...
  • Page 17: Safety Instructions

    DIN 4751 Water Heating Systems. DIN 4757 Solar Heating and Solar Thermal Systems. EN 18380 Heating and Process Water Systems. EN 18382 Electric Cable and Wiring Equipment in Buildings. EN 12975 Thermical solar systems and their components. 17 VELUX...
  • Page 18: Dimensions, Components

    2. Dimensions, components Two-line return unit, insulated, DN 20, with solar control, air collector, fill fitting, and flow indicator. Tube connection Figure 1: Overview Ø 22 Connection, flat sealing G 1" Figure 2: Dimensions 77.5 175 75.5 ca. 202.6 18 VELUX...
  • Page 19: Technical Specifications

    The gravity brakes are in operating The ball valves are closed (Figure 3c). position (closed). The slots in the handles are in a vertical position (Figure 3a). Figure 3a: Ball Valve open. Figure 3b: Gravity Brakes open. Figure 3c: Ball Valve closed. 19 VELUX...
  • Page 20: Fill/Drain Fitting

    The air and the thermal carrier medium escaping while venting the system can reach tempera- tures of over 100°C. Afterwards, firmly close the nipple. Monitor the system pressure while venting. If necessary, refill the solar system with thermal carrier medium. 20 VELUX...
  • Page 21: Connection Nozzle

    11. Maintenance For maintenance tasks (e.g., replacing the pump), close the flow and return ball valves and the shut-off in the drain fitting (Figure 1, pos. 1 and 2). 21 VELUX...
  • Page 22: List Of Spare Parts

    AGHB 141309 Retaining clip for expansion tanks, for AG18S and AG25S – RLG-AR 130128 Tank connection pipe for PSKR Note: = Female thread = Male thread = Thread = German Standard Diameter (GSD) MAG = Membrane expansion tank 22 VELUX...
  • Page 23: Pump Description

    Applied harmonized standards in particular: 89/392/EWG in this version, 91/368/EWG, EN 809, EN 50 081-1, EN 50 082-1, EN 50 081-2, 93/44/EWG, 93/68/EWG EN 50 082-2. Fig. 2 Fig. 3 Fig. 4 STL.../6-3 Fig. 5 Water flow (m 23 VELUX...
  • Page 24: Safety Precautions For The Operator

    – Effect all wiring according to Wiring diagram (Fig. 4). instructions. – Pump/installation must be earthed in compliance Work must principally be carried out only with the with regulations. plant switched off and at complete standstill. 24 VELUX...
  • Page 25 Beware of possibly released hot liquid or vapour, the operational state of the pump or the pipe system depending on fluid temperature and system pres- (fluid temperature). sure. Danger of scalding exists! Danger of scalding exists when touching the pump! 25 VELUX...
  • Page 26 26 VELUX...
  • Page 27 Blinking codes..................................39 2.3.1 System screen blinking codes............................. 39 Commissioning........................39 Controller parameter and indication channels..............41 Channel overview................................41 4.1.1 - 6 Indication channels................................43 4.1.7 - 21 Adjustment channels............................... 44 Tips for fault localization....................52 Accessories/Spare Parts....................55 27 VELUX...
  • Page 28: Security Devices

    Thermal solar plants and their components; collec- tors, part 1: general standards. PrEN 12975-2 Thermal solar plants and their components; collec- tors, part 2: test methods. PrEN 12976-1 Thermal solar plants an their components; prefabri- cated plants, part 1: general standards. 28 VELUX...
  • Page 29: Technichal Data And Function Survey

    Inputs: For 4 temperature sensors Pt1000. Outputs: 2 semi-conductor relays. Power supply: 210 ... 250V~, 50 ... 60Hz. Total power supply: 4 (2) A 250 V~ Mode of operation: Typ 1.y Breaking capacity per relay: Semi-conductor relay: 1,6 (1) A 250 V~ 29 VELUX...
  • Page 30: Installation

    (hole pitch 130 mm), afterwards put separate laying of the cable lines and installation of the lower dowel. ac power supply. 4. Fasten the housing at the underground. Display Hanging Base Pushbuttons Cover Fixation Can fuse A4 Cable conduits with strain relief 30 VELUX...
  • Page 31: Electrical Wiring

    1 (1) A ( 220 ... 240)V~ (1) A (220 ... 240)V~ Temp. Sensor Pt1000 N R2 R1 N L Earthing clamps Net clamps Sensor clamps Consumer clamps Dangerous voltage on contact! Electrostatic discharge can lead to damages of electronic components! 31 VELUX...
  • Page 32: Allocation Of Clamps

    Solar system and heat exchange of existing store with 2 stores, 4 sensors and 2 pumps. ARR 2 Symbol Specification Collector sensor Store sensor lower Store sensor at the top Store sensor 2 Store 1 Store 2 Solar pump Pump for heat exchange 32 VELUX...
  • Page 33: Solar System And After-Heating

    The sensor S4/TRF can optionally be used for heat quantity balancing. ARR 4 Symbol Specification Collector sensor Store sensor lower Store sensor at the top S4/TRF Sensor for heat quantity balancing (optionally) Solar pump S4/TRF 3-way-valve 33 VELUX...
  • Page 34: 2-Store-Solar-System Valve Logic

    3 sensors and 2 solar pumps. The sensor S4/TRF can optionally be used for heat quantity balancing. ARR 6 Symbol Specification Collector sensor Store sensor 1 Store sensor 2 S4/TRF S4/TRF Measuring sensor (optionally) Store 1 Store 2 Solar pump 1 Solar pump 2 34 VELUX...
  • Page 35: Solar System With 2 Collectors

    1 store, 4 sensors, 1 solar pump and 1 pump for after-heating. ARR 8 Symbol Specification Collector sensor Store sensor lower Store sensor at the top Sensor for solid fuel boiler Solar pump Pump for solid fuel boiler 35 VELUX...
  • Page 36: Solar System With Heating Circuit Reverse Raising

    Backwards ton 1 pressed for about 2 seconds. If an adjustment value is shown on the display, is indicated. In this case you can press the key " " (3) in order to change into input mode. 36 VELUX...
  • Page 37: System Monitoring Display

    / maximum store recooling function active temperature exceeded Option antifreeze function Collector minimum limitation active active antifreeze function active Collector security shutdown active or store securtiy shutdown active Sensor defect Manual operation active An adjustment channel is changed SET-mode 37 VELUX...
  • Page 38: System Screen

    Store 2 or after-heating (with additional symbol) Store Collectors with collector sensor Temperature sensor Heating circuit Store 1 and 2 with heat exchanger Pump 3-way-valves After-heating with The flow direction or the current breaking burner symbol capacity are always shown. 38 VELUX...
  • Page 39: Blinking Codes

    – Select the system scheme by ARR Forward characteristics SET (selection/adjustment mode) – Adjustment is saved by pressing button Backwards Now the controller is ready for operation and should enable an optimum operation of the solar system by the factory settings made. 39 VELUX...
  • Page 40 ARR 7: Solar system with 2 collectors and 1 store ARR 8: Solar system with after-heating by solid fuel boiler ARR 9: Solar system with heating circuit reverse raising ARR 1 ARR 2 ARR 3 ARR 4 ARR 5 ARR 6 ARR 7 ARR 8 ARR 9 40 VELUX...
  • Page 41: Controller Parameter And Indication Channels

    Maximum temperature store (1) S1MX Maximum temperature store 1 DT20 Switch-on temperature difference 2 DT2F Switch-off temperature difference 2 DT2S Nominal temperature difference 2 RIS2 Increase 2 S2MX Maximum temperature store 2 Emergency temperature collector (1) Emergency temperature collector 1 41 VELUX...
  • Page 42 Antifreeze content Minimum pump speed relay (1) n1MN Minimum pump speed relay 1 n2MN Minimum pump speed relay 2 HND1 Manual operation relay 1 HND2 Manual operation relay 2 LANG Language PROG xx.xx Program number xx.xx VERS Version number 42 VELUX...
  • Page 43: Indication Channels

    / n1% / n2%: Current pump speed Shows the current pump speed of the Display range: corresponding pump. 30 ... 100% • n%: Current pump speed (1-pump-system) • n1%: Current pump speed pump 1 • n2%: Current pump speed pump 2 43 VELUX...
  • Page 44: Adjustment Channels

    1: Propylene glycol/Antifreeze FS MEDT: 2: Ethylene glycol Type of antifreeze 3: Vacuum antifreeze FSV Adjustment range: 0 ... 3 Please note: Channels FMAX and MEDT are only Factory setting: 1 available during the activated option heat quantity measurement (OHQM). 44 VELUX...
  • Page 45 RIS / RIS1 / RIS2 / RIS3: (DT F/DT1F/DT2F/DT3F), the controller Raise switches off. Adjustment range: Please note: Switch-on temperature difference DO 1 ... 20 K must be at least 0,5 K higher than the switch-off Factory setting: 2 K temperature difference DF. 45 VELUX...
  • Page 46 8, following adjustments should be made: ARR = 8 MX3O approx. 80°C/MX3F approx. 75°C. MN3E 60.0°C MN3A 65.0°C Please note: the parameter MX3O and MX3F always apply to the heat sink, the parameter MN3O and MN3F to the heat source. 46 VELUX...
  • Page 47 (or solid fuel boiler CMN / CMN1 / CMN2: charging pumps) for low collector temperatures. If Minimum collector the minimum temperature is underrun, is shown temperature on the display (flashing). Adjustment range: 10 ... 90°C Factory setting: 10°C 47 VELUX...
  • Page 48 2 = Priority store 2 collector are loaded in numerical order (store 1 or store 2). In general only one store is loaded at that time. For ARR = 6 parallel loading is also possible. 48 VELUX...
  • Page 49 After the expiration of the solar pump runtime the current collector temperature is stored as a new reference value. If the measured tempera- ture (new reference value) is again exceeded by 2 K, the solar pump switches-on for 30 seconds. 49 VELUX...
  • Page 50 The thermostat function is used for use of surplus AH F: energy. Thermostat-switch-off temperature is shown on the display if the second relay Adjustment range: output is activated. 0.0 ... 95.0°C Factory setting: 45.0°C After-heating Use of surplus energy 50 VELUX...
  • Page 51 AUTO: Relay in automatic operation Relay on, display: (flashing) + LANG: 4.1.21 Language Adjustment of language The menu language can be adjusted in this channel. Adjustment range: dE, En Factory setting: dE • dE: German • En: English 51 VELUX...
  • Page 52: Tips For Fault Localization

    - 888.8 Line break. Short-circuit. Check the line. Check the line. Pt1000-temperature sensors pinched o can be checked with an ohmmeter. In the following the resistance values corresponding to di erent temperatures Resistance values of the are listed. Pt1000-sensors 52 VELUX...
  • Page 53 ∆To accordingly. Heat exchanger Collector sensor unfavour- calcified? able placed e.g. contact sensor instead of immersion sleeve sensor? Decalcification If necessary activate tube collector function. Heat exchanger plugged? o.k. Clean Heat exchanger too small? New calculation of the dimension. 53 VELUX...
  • Page 54 flow preventer or an electrical 2-way valve behind the circulation pump; the 2-way valve is open in pump operation, otherwise it is closed, connect pump and 2-way valve in parallel; activate the circulation again! 54 VELUX...
  • Page 55: Accessories/Spare Parts

    Temperature sensor for collectors with PT1000 characteristics SKSPT1000S 141 107 Temperature sensor for stores with PT1000 characteristics SBATHE 141 110 Stainless steel immersion sleeve for swimming pool sensors. For applica- tion in chlorine water. SKSGS 140 032 Spare fuse 4 A 55 VELUX...
  • Page 56 GB: VELUX Company Ltd. IRL: VELUX Company Ltd. Woodside Way Unit 1, Willsborough Cluster Glenrothes East Willsborough Industrial Estate Fife Ky7 4ND Clonshaugn Scotland Dublin 17 Phone: +44 1 592 77 22 11 Ireland Fax: +44 1 592 77 18 39 Phone: +353 1848 8775 www.velux.co.uk...

This manual is also suitable for:

Tff 300Tff 400 0201

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