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.
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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.
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.
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 ...
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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...
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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...
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...
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...
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.
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.
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.
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...
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...
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...
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...
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...
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...
– 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...
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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...
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...
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...
(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...
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...
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...
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...
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...
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...
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...
/ 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...
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...
– 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...
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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...
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...
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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...
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...
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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...
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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...
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(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...
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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...
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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...
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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...
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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...
- 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...
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∆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...
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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...
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...
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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...