DISTRIBUTION and CONTROL

Transcription

1 DISTRIBUTION and CONTROL Installation Planning Installation instructions & design manual e9717

2 Page 2 Table of Contents DISTRIBUTION and CONTROL 1 General information Safety information Distribution and control A few system diagrams (not intended to be exhaustive) Manifold cabinets Fixing bars (wall mounting without manifold cabinet): Manifold cabinet on-wall Manifold cabinet UF in-wall Bracket set and dimensions VarioManifold Assembly thermometer Possible variations Connecting the Variotherm pipes Filling/flushing/deaerating the system Pressure test Hydronic balancing Hydronic balancing handover protocol Flow characteristic curve Thermoelectric actuators Thermoelectric actuator Thermoelectric actuator with limit switch Installing the thermoelectric actuators Controllers Type overview Fitting dew point sensor Fitting heating surface sensor Pumped VarioManifold Description Weather-guided control station for surface heating for systems featuring a main pump Pump PVS (WILO Yonos PARA 15/6) Regulating valve Pressure loss in the boiler circuit WHR36 weather-guided controller Troubleshooting Pump Microstation Description Weather-guided control station for surface heating for systems featuring a main pump Pump PMS (WILO Yonos PARA 15/6) Regulating valve Pressure loss in the boiler circuit WHR36 weather-guided controller Modification for operation with thermoelectric actuator Troubleshooting Return temperature limiter (for one surface heating circuit) RTL valve RTLT valve (with thermostatic valve)... 3

3 - SET PROG + Installation instructions & design manual 1 General information Page 3 1 General information 1.1 Safety information - The electrical and hydraulic connection and service work on the device may only be provided by authorised specialist personnel. - The devices are designed for use in dry, closed rooms. - The electrical installation standards and regulations specified by the local energy supply companies should be observed, together with the locally applicable regulations and standards for heating installations. - Faults in the connection can cause damage to the device! We bear no liability for damage caused by incorrect connection and/or inappropriate handling of the device. - If the system components are installed or commissioned incorrectly, all claims on the basis of the manufacturer s warranty and guarantee become void. 1.2 Distribution and control Heating/cooling manifolds are installed for the distribution of water within the heating/cooling system. 1.3 A few system diagrams (not intended to be exhaustive) Skirting heating system PIANO H or PIANO HK(T) with clock PIANO HK or PIANO HKT System wall heating tr = tf = tf = tr = 5 C 6 C 4 C 3 C Boiler (also storage tank) tf = 6 C tr = 5 C Floor heating System with manifold Skirting heating system (with thermostatic valve) Radiator (existing) PIANO HK or PIANO HKT Modular wall heating tr = tf = tf = t R = 5 C 6 C 4 C 3 C Boiler (also storage tank) tf = 6 C tr = 5 C Drywall floor heating System with manifold and existing 2-pipe system

4 - SET PROG SET PROG Page 4 1 General information DISTRIBUTION and CONTROL PIANO HW Sensor fitted between pipes PIANO HKT Dew point sensor Tepidarium Tiled stove Cosy corner bench tf = 17 C t R = 21 C Modular ceiling cooling/heating tf = 6 C tr = 5 C Boiler (or buffer storage tank) Tepidarium, tiled stove or cosy corner bench system Heat pump (can be switched to cooling) Surface heating and cooling system PIANO HK-Funk (receiver) PIANO HK PIANO HK-Funk (thermostat/transmitter) Modular wall heating/ cooling Floor heating e.g. living room e.g. office Radio solution in the absence of ductwork between the room thermostat and thermoelectric actuator If you wish to create several surface heating circuits with low temperatures using an existing 2-pipe system, then install a microstation with a pump or a pumped manifold. Radiator (existing) Floor heating 1-2 heating circuits t F = 4 C Pump Microstation Optionally: PIANO HK(T) with clock in reference room (Antechamber) PIANO H 23V AC 5 Hz Radiator (existing) tr = 3 C System wall heating tf = 4 C Pumped Vario- Manifold tr = 3 C tr = tf = 5 C 6 C 2-14 heating circuits tf = tr = Boiler (or buffer storage tank) 6 C 5 C Boiler (or buffer storage tank) Pump Microstation and fixed-value regulator Weather-guided pumped manifold

5 Installation instructions & design manual 1 General information Page 5 Examples for cold water production (not provided and not intended to be exhaustive): Room thermostat e.g. PIANO HKT RT43 e.g. Module- Ceiling VarioManifold Pump Expansion tank Dew point sensor Variotherm components Ball valve 17 C * 21 C * Check valve RT43 Dew point sensor e.g. ModuleWall * Typical dimensioning temperatures Dirt trap Heat exchanger Cold production Outdoor use incl. safety devices (not provided) 8 C * 12 C * 3 way mixing valve Brine pipeline Heat generation e.g. gas, oil, solid fuel boiler, remote heating, buffer Safety valve Brine pipeline Brine pipeline Ground collector, deep-drill boreholes, etc. Production well Injection well Please note legal specifications for water!

6 Page 6 2 Manifold cabinets DISTRIBUTION and CONTROL 2 Manifold cabinets If you intend to use manifold cabinets, these are mounted before the manifolds are installed. 2.1 Fixing bars (wall mounting without manifold cabinet): The fixing bars are mounted to the wall at a suitable distance depending on the manifold size using the screws (4x) provided. The VarioManifold, Pumped VarioManifold or Pump Microstation can then be attached to them. 2.2 Manifold cabinet on-wall The manifold cabinet is placed on the wall and screwed tight. For the bracket installation, see section mm B 14 mm C-rails 123 mm Fixed back panel Front door Screed facing 565 mm - 18 mm 1 mm 465 mm Manifold cabinet types VSA1 VSA2 VSA3 VSA4 B (mm) VarioManifold circuits 2-3 1, Pumped VarioManifold circuits Pump Microstation circuits

7 Installation instructions & design manual 2 Manifold cabinets Page 7 Cutting check * Screed or pipe s minimum vertical cover for screed floor heating system FFOK... Upper edge of finished floor RDOK... Upper edge of raw slab 5 mm* 15 mm Floor covering FFOK Screed Raw slab RDOK mm 5 mm 5 mm Example for on-wall installation 2.3 Manifold cabinet UF in-wall D C 8 mm 13 mm 15 mm A B (±,5) C-rails mm Deviating pipe rail C + 8 mm Front door Front frame Screed facing 657 mm mm 11 mm 547 mm mm Manifold cabinet types VSU1 VSU2 VSU3 VSU4 A (mm) B (mm) C (mm) D (mm) VarioManifold circuits Pumped VarioManifold circuits Pump Microstation circuits

8 Page 8 2 Manifold cabinets DISTRIBUTION and CONTROL 1 Remove the front frame and the base cover from the cabinet. 2 Place the cabinet in the recess in the wall, straighten it using the adjustable feet and fix it to the unfinished floor. 3 Mount the bracket set to the rear side of the manifold (see chapter 2.4). 4 Snap the VarioManifold into the C-rails and affix with the screws. 5 Connect the connection pipes. To do so, pre-cut opening plates on the right and left can be broken open. 6 Fix the wall cabinet in the wall with quick setting cement. Screw it to the supporting structure in the drywall. 7 Lay out the heating/cooling distribution circuits. Feed the flow and return behind the deviating pipe bend into the floor and towards the heating surfaces. In-wall mounted front frame: 8a Attach the screed facing (this will not be plastered over later) - this covers the area between the front frame and the finished floor level. Cover all visible parts well (e.g. with painter's tape) - protect the opening from dirt with card or plastic film. 9a After completing the wall, remove the protective coverings or adhesive tapes and attach the doors. Cutting check 5 mm* 15 mm Floor covering FFOK Screed Lintel Raw slab * Screed or pipe's minimum vertical cover for screed floor heating system FFOK... Upper edge of finished floor RDOK... Upper edge of raw slab RDOK mm 595 mm 45 mm mm max. 8 mm for skirting board Example for in-wall mounted front frame

9 Installation instructions & design manual 2 Manifold cabinets Page 9 Wall-mounted front frame: 8b. Attach the screed facing (this will not be plastered over later) - this covers the area between the front frame and the finished floor level. Align the front box edge to the finished plaster edge or finished wall edge. Cover all visible parts well (e.g. with painter's tape) - protect the opening from dirt with card or plastic film. 9b. After completing the wall, remove the protective coverings or adhesive tapes and attach the front frames and doors. Cutting check 5 mm* 15 mm Floor covering FFOK Screed Lintel Raw slab * Screed or pipe's minimum vertical cover for screed floor heating system FFOK... Upper edge of finished floor RDOK... Upper edge of raw slab RDOK mm 585 mm 415 mm 8-1 mm max. 48 mm for skirting board Example for wall-mounted front frame 2.4 Bracket set and dimensions Demounting: 4.8 x 19 mm , Bracket 4.8 x 9.5 mm C-rail or fixing bar 4.8 x 19 mm 52, x 9.5 mm

10 Page 1 3 VarioManifold 5. DISTRIBUTION and CONTROL 3 VarioManifold 5. Manifold module with outlet facing upwards e.g. room thermostat PIANO H 2-25 mm Flow 23 V AC 5 Hz Electrical distribution box (in close proximity to the heating/cooling distribution manifold) for example 1,5 mm² Return Elbow fitting 6/4" 9 (optional): Installation length Locking ball valve, supply (1" female thread) Locking ball valve, return (1 female thread) Manual air vent Thermometer Feed & drain cock Flow indicator Flow segment with flow indicator Return segment with stop valve Technical data: Max. test pressure: 1 bar (only with water) Operating temperatures: -2 C bis +9 C (anti-freeze filling) Thermoelectric actuator Name labels blue End plates (isolated) Variotherm 3/4 Eurocone clamping screw fitting (for Variotherm pipes ø11.6, ø16 and ø2 mm Insulating grommet (optional) Max. operating overload pressure: 6 bar Installation depth of manifold: 93 mm or 8 mm with removed thermometers Manifold Inst. length installation length +15 mm Manifold Inst. length 1 circuit (1-beam) 345 mm 1 circuits 645 mm 2 circuits 245 mm 11 circuits 695 mm 3 circuits 295 mm 12 circuits 745 mm 4 circuits 345 mm 13 circuits 795 mm 5 circuits 395 mm 14 circuits 845 mm 6 circuits 445 mm 15 circuits 895 mm 7 circuits 495 mm 16 circuits 945 mm 8 circuits 545 mm 17 circuits 995 mm 9 circuits 595 mm The VarioManifold is made of plastic modules which are fitted together according to the number of heating/cooling circuits required. 3.1 Assembly thermometer Front side Rear side Screw the immersion sleeve into the connection block and tighten with 15 Nm. Then insert the thermometer. Do not completely tighten the feed cock remains just visible.. The seal

11 Installation instructions & design manual 3 VarioManifold 5. Page Possible variations Basic Version Example: 5 low-temperature circuits with floor heating system and wall heating system Example Beispielschema: diagram: M 55 C 45 C 4 C 3 C Combination - two different temperature circuits Example: 6 low-temperature circuits with wall and floor heating, 2 high-temperature circuits for trench heating and cosy corner bench Dividing plate Dividing plate Other variants: 1-beam variant Example: 1 low-temperature circuit with floor heating system Flow connected to the left, return to the right Dimensioning example for supply pipe to heating distribution manifold t (t F - t R ) = 1 K Heating circuits Heat output Dimensions for copper/multi-layer supply pipes kw for example Cu22x1. / 26x kw for example Cu28x1. / 32x kw for example Cu35x1.2 / 4x4 Dimensioning example for supply pipe to cooling distribution manifold t (t F - t R ) = 4 K Cooling circuits Cooling performance Dimensions for copper/multi-layer supply pipes kw for example Cu22x1. / 26x kw for example Cu28x1. / 32x kw for example Cu35x1.2 / 4x4 One circuit facing upwards All circuits facing upwards

12 Page 12 3 VarioManifold 5. DISTRIBUTION and CONTROL 3.3 Connecting the Variotherm pipes Straight, level cut with pipe cutting pliers Calibration and chamfering tool or ø 2 mm for ø 16 mm for ø 11.6 mm 1 The supply pipe is cut off straight across and then calibrated. 2 Push the pipe into the clamping screw fitting up to the stop, and in this position tighten the union nut hand-tight. 3 Tighten the clamping screw fitting for one more turn with an open-end wrench. The tightening torque is 35 Nm. Flow indicator VarioManifold flow module Clamping screw fitting* 3/4"EURO Insulating grommet, Protection against condensation at the clamping screw fitting in case of cooling. Clamping screw fitting* Supply pipe** ** Supply pipe * Clamping screw fitting Variomodular pipe 2x2 Laser 3/4"EUROx2 (Z15) VarioProFile pipe 16x2 Laser 3/4"EUROx16 (Z14) Variomodular/VarioProFile pipe 11.6x1.5 Laser 3/4"EUROx11.6 (Z13) Pre-insulated Variomodular pipe 16x2 Laser 3/4"EUROx16 (Z14) 3.4 Filling/flushing/deaerating the system Purified water as per ÖNORM H and VDI 235 OFF 1 Main locking ball valves and all return modules are closed. 2. All flow valves are opened. 3. Then connect the filling and flushing station to both feed & drain cocks on the supply and return pipes.

13 Installation instructions & design manual 3 VarioManifold 5. Page 13 Attention: Flushing only in flow direction! ON ON 4 Switch on the flushing and filling station. Then turn on the feed & drain cocks; the supply pipe is pressurised and the return segments of the first two heating/cooling circuits are opened. This thoroughly flushes water through the supply line into the two heating/cooling circuits. 5 Once the water comes out with no air bubbles, the opened return modules are to be closed. 6 Immediately afterwards, the next two return modules are to be opened. The same procedure is followed for the other circuits in sequential order, until the entire system is filled. ON OFF 7 Finally, this flushing procedure is repeated upon opening of all flow and return modules. 8. First turn off the feed & drain cock on the return pipe, then immediately turn off the feed & drain cock on the supply pipe. Turn off the flushing and filling station. Open the main locking ball valves. 3.5 Pressure test Close ball valves Test pressure: minimal 4 bar maximum 6 bar 24 hours Pressure test pump 4) Then retighten screws and reduce pressure to 2-3 bar. Maintain this pressure until completion of the object in order to identify any possible damage. Caution: Concrete (screed/industrial floor heating systems) heats up during the binding process, increasing the pressure in the heating system. Always use an expansion tank and a safety valve!

14 Page 14 3 VarioManifold 5. DISTRIBUTION and CONTROL 3.6 Hydronic balancing The length of the Variotherm pipe (heating surface + supply pipes), possible connection parts (e.g. press-fit couplings) and the distribution manifold determine the pressure loss in the individual heating/cooling circuits. For hydronic balancing, the relevant circulation pump must be running. A water flow rate is assigned to each heating/cooling circuit. Short circuit > Compensate by further closing the flow indicator valve. Hydronic balancing is performed by means of the flow rate valve in the flow (orange segment). 1. Fully open all return valves. Close all flow valves. Pull up the affixing ring and turn it anticlockwise until it stops. Then press down the affixing ring. 2. Slowly open the flow indicators in sequential order until the display has reached the required flow rate. Because the flow rates of the individual heating/cooling circuits affect one another, it may be necessary to make corrections to the values in a second flow. Pull up the affixing ring and turn it clockwise until it stops. The press the affixing ring down. Read here! * * Values may differ due to no purified water or polluted heating water (corrosion).

15 Installation instructions & design manual 3 VarioManifold 5. Page Hydronic balancing handover protocol Hydronic balancing has been carried out according to the values of the heat requirement calculation Hydronic balancing has been carried out with individual adjustments Heating/cooling distribution manifolds Heating/cooling circuit Designation Setting l/h Carried out by: Construction project: Place, date, signature (installer): Place, date, signature (installer):

16 Page 16 3 VarioManifold 5. DISTRIBUTION and CONTROL 3.8 Flow characteristic curve p To ascertain the pressure loss of the heating/cooling distribution manifold for the respective heating/cooling circuits (without pressure loss of pipes). Max. opened return valve - with clamping screw fitting for VarioProFile pipe 11.6x1.5 - with clamping screw fitting for VarioProFile pipe 16x2 1 Flow rate Q [l/h] Flow valve 1 turn opened Flow valve 3/4 turns opened Flow valve 1 turn opened Flow valve 3/4 turns opened Flow valve 1/2 turns opened Flow valve 1/2 turns opened Flow valve 1/4 turns opened Flow valve 1/4 turns opened Kv value 1,,1 1 2,,2 2 3,,3 3 4,,4 4 5,,5 5 6,,6 6 7,,7 7 8,,8 8 9,,9 9 1, 1, 1 [mwc] [bar] [Pa] Pressure loss p

17 Installation instructions & design manual 4 Thermoelectric actuators Page 17 4 Thermoelectric actuators The Thermoelectric actuator of the heating/cooling distribution manifold opens or closes the circuit depending on the requirements of the room thermostat. 4.1 Thermoelectric actuator PTC expansion material element function Technical data Type (voltage) 23 V AC 5/6 Hz 24 V AC/DC -6 Hz Activation current < 55 ma (max. 1 ms) < 3 ma (max. 2 min.) Operating current 4.3 ma 42 ma Operating power 1 W Design Closed when power off Closing and opening times approx. 3,5 min. Adjustment travel 4 mm Adjustment force 1 N ±5 % Media temperature - 1 C Storage temperature C... Ambient temperature C... Protection degree/protection IP 54 / II IP 54 class CE conformity as per EN 673 Housing/housing colour: Polyamide/light blue Weight 1 g with 1 m connection cable Connection line 2 x,75 mm² PVC grey / 1 m Overvoltage resistance as per EN min. 2.5 kv min. 2.5 kv 4.2 Thermoelectric actuator with limit switch This variant of the thermoelectric actuator is also fitted with an internal switch (open when power off), which closes as soon as voltage is applied to the actuator. PTC expansion material element First-Open- First-Open Funktion* First-Open- First-Open Funktion* function limit switch Technical data Type (voltage) 23 V AC 5/6 Hz 24 V AC/DC -6 Hz Activation current < 55 ma (max. 1 ms) < 3 ma (max. 2 min.) Operating current 4.3 ma 42 ma Operating power 1 W Design Closed when power off Closing and opening times approx. 3 min. Adjustment travel 4 mm Adjustment force 1 N ±5 % Limit switch - switching current 23 V AC: 5 A ohmic load, 1 A inductive load 24 V DC: 3 A ohmic load, 1 A inductive load Switching point approx. 2 mm Media temperature - 1 C Storage temperature C... Ambient temperature C... Protection degree/protection class IP 54 / II IP 54 / III CE conformity as per EN 673 Housing/housing colour: Polyamide/light grey Weight 15 g with 1 m connection cable Connection line 4 x,75 mm² PVC grey / 1 m Overvoltage resistance as per EN min. 2.5 kv 1 kv *First-Open function: The Thermoelectric actuator is switched to open when power off by default so that the installer can immediately start the system with installed thermoelectric actuators. If the thermoelectric actuator is energised for > 6 minutes, it will be switched to closed when power off.

18 Page 18 4 Thermoelectric actuators DISTRIBUTION and CONTROL Thermoelectric actuator with limit switch 1 2 Room thermostat N L1 PE Cabling diagram - basic wiring Load, e.g. pump N L1 PE Functionality description:: 1 No heating/cooling requirement, room thermostat relay output open > limit switch open, as the thermoelectric actuator is powered off > pump off 2 Heating/cooling requirement present, relay output of the room thermostat closed > limit switch closed, as voltage is applied to the thermoelectric actuator > pump running 23 V AC L1 S RT2 RT1 RT2 P RT S P N PE Thermoelectric actuator with limit switch Thermoelectric actuator (without limit switch) Thermoelectric actuators on room thermostat 1 (RT1), e.g. living room Thermoelectric actuators on room thermostat 2 (RT2), e.g. bedroom Wiring of limit switches for several thermoelectric actuators on a pumped manifold (example) Functionality description: The pump runs if voltage is applied to at least one thermoelectric actuator with a limit switch. The pump is off when all thermoelectric actuators with a limit switch are closed. 4.3 Installing the thermoelectric actuators It is not necessary to drain the system. 1 Remove the valve's protective cap 2 Screw on the grey adapter ring 3 Click thermoelectric actuator into place

19 Installation instructions & design manual 5 Controllers Page 19 5 Controllers 5.1 Type overview Central heating systems are to be equipped with state-of-the-art automatic devices for room-specific temperature control. Also see operating manual for installation instructions. PIANO H electronic room thermostat for heating mode. Item number: RT4 PIANO HK electronic room thermostat for heating/cooling mode. Item number: RT41 PE N L LOAD LAST DC AC PE N L LOAD LAST DC AC Operating voltage: 23 V AC, 5 Hz Relay output: floating input 1) (NO contact), 1 A, 23 V AC Temperature range: C Switching difference: ±.2 K Protection degree: IP 3 Features: KTY semiconductor sensor Screw connections On/off switch Switching status display Weight: 85 g Protection class: II Size (h x w x d): 81 x 81 x 16 (25) mm Attachment: to in-wall box Colour: RAL 91 Pure white Operating voltage: 23 V AC, 5 Hz Relay output: floating input 1) (NO contact), 1 A, 23 V AC Temperature range: C Switching difference: ±.2 K Protection degree: IP 3 Features: KTY semiconductor sensor Screw connections Off/heating/cooling switch Switching status display Weight: 95 g Protection class: II Size (h x w x d): 81 x 81 x 16 (25) mm Attachment: to in-wall box Colour: RAL 91 Pure white PIANO HKT electronic room thermostat for heating/cooling operation. Item number: RT42 PIANO HK(T) electronic room thermostat with clock for heating/cooling mode. Item number: RT43 PE N L LOAD LAST DC AC PE N L LOAD LAST DC AC - SET PROG + Optionally: 8 9 Dew point sensor Taupunktwächter Operating voltage: 23 V AC, 5 Hz Relay output: floating input 1) (NO contact), 5 A, 23 V AC Temperature range: C Switching difference: ±.2 K Protection degree: IP 3 Sensor cable: 5 m (extendible to max. 2 m with 2x1.5 mm²) Features: incl. dew point sensor KTY semiconductor sensor Screw connections Off/heating/cooling switch Switching status display LED red/orange Weight: 21 g Protection class: II Size (h x w x d): 81 x 81 x 16 (36) mm Attachment: to in-wall box Colour: RAL 91 Pure white 1) The required safety distances (EN 673-1) are to fulfill externally! 8 9 Dew Taupunktwächter point sensor (Optional) (optional) Operating voltage: 23 V AC, 5 Hz Relay output: floating input 1) (NO contact), 5 A, 23 V AC Temperature range: C Temperature switching difference: settable Protection degree: IP 3 Features: KTY semiconductor sensor Screw connections Switching status display Digital clock with weekly program 32 switching points (heating) and 32 switching points (cooling) (Optionally: operation with dew point sensor, item number: RT421) Weight: 19 g Protection class: II Size (h x w x d): 81 x 81 x 16 (36) mm Attachment: to in-wall box Colour: RAL 91 Pure white

20 Page 2 5 Controllers DISTRIBUTION and CONTROL PIANO HF electronic room thermostat with heating surface sensor for heating mode. Item number: RT44 PIANO HW electronic surface thermostat with clock for heating mode. Item number: RT6 PE N L LOAD LAST Sensor DC AC PE N L LOAD LAST Sensor DC AC - SET PROG + Operating voltage: 23 V AC, 5 Hz Relay output: non floating input (NO contact), 1 A, 23 V AC Temperature range room: C Temperature range surface: C Switching difference: ±.2 K Protection degree: IP 3 Sensor cable: Length: 4 m (extendible to max. 25 m with 2x.75 mm²) Features: KTY semiconductor sensor (room & surface) Screw connections On/off switch Switching status display Individual settings for room and surface temperature Weight: 21 g Protection class: II Size (h x w x d): 81 x 81 x 16 (25) mm Attachment: to in-wall box Colour: RAL 91 Pure white Surface mounting frame for room thermostat Item number: RT491 Operating voltage: 23 V AC, 5 Hz Relay output: non floating input (NO contact), 16 A, 23 V AC Temperature range surface: C Temp. switching difference: settable Protection degree: IP 3 Sensor cable: Length: 4 m (extendible to max. 25 m with 2x.75 mm²) Features: KTY semiconductor sensor Screw connections Switching status display Digital clock with weekly programme Weight: 28 g Protection class: II Size (h x w x d): 81 x 81 x 16 (36) mm Attachment: to in-wall box Colour: RAL 91 Pure white PIANO HK-Funk electronic room thermostat for heating/cooling mode. Item number: RT47 Radio receiver connection diagram: PE N L LOAD LAST DC AC Application: Weight: Size (h x w x d): Attachment: Colour: for installation without existing in-wall box, compatible with following room thermostates: PIANO H PIANO HK PIANO HF 35 g 81 x 81 x 18 mm surface mounting RAL 91 Pure white Arrangement of multiple room thermostats: > 3 mm Radio thermostat Radio receiver Radio thermostat (transmitter): Operating voltage: 3 V battery (durability approx. 2 years) Output: Radio transmitter, Radio signal MHz Temperature range: C Switching difference: ±.2 K Protection degree: IP 2 Features: KTY semiconductor sensor Screw connections Off/heating/cooling switch Weight: 7 g Protection class: III (extra-low voltage, DIN EN 673-1) Size (h x w x d): 81 x 81 x 16 mm Attachment: surface mounting Colour: RAL 91 Pure white Radio receiver: Operating voltage: 23 V AC, 5 Hz Relay output: non floating input (NO contact), 23 V AC, max. 16 A (cosφ = 1), max. 4 A (cosφ =.6) Receiving frequenzy: 433,92 MHz Features: Switching status display Weight: 9 g Protection class: II Protection degree: IP 3 Size (h x w x d): 71 x 71 x 31 mm Attachment: surface mounting or in-wall box (outside of the manifold box)

21 Installation instructions & design manual 5 Controllers Page Fitting dew point sensor With PIANO HKT and PIANO HK(T) with clock, the associated dew point sensor (available separately for PIANO HK[T] ) is connected. Use: SystemWall cooling, EasyFlexWall cooling, ModuleWall/ModuleCeiling cooling. The dew point sensor should be fitted at the position on the pipe that is expected to dew first. Generally this is the case at the flow entry. The dew point sensor is fitted to the pipe using cable ties. Make sure that there is good thermal contact between the pipe and the sensor (use heat transfer paste). The supply pipes should be sufficiently secured. Dew point sensor Inspection opening Wiring in ductwork Flow Flow Wiring in ductwork Flush-mounted junction box 1 x 1 mm Dew point sensor PIANO HKT, PIANO HK(T) with clock Dew point sensor PIANO HKT, PIANO HK(T) with clock Cable strap Thermal paste VarioProFile pipe Cable strap Thermal paste Variomodular pipe Example System wall cooling Example Modular ceiling cooling 5.3 Fitting heating surface sensor Electrical in-wall box ø 6 mm for PIANO HF/HW (usually outside or next to the wall heating). With PIANO HF and PIANO HW with clock, the supplied heating surface sensor is connected. Use: EasyFlex wall heating (e.g. centrally heated tile stoves). Before plastering, the ducting (e.g. Cu12 pipe) for the heating surface sensor is clamped in a suitable reference position between the Variotherm pipes. Cap e.g. ducting Cu12x1 for heating surface sensor Wiring in ductwork Empty pipe Cu12x1 Heating surface sensor Example EasyFlex wall heating

22 - SET PROG Page 22 6 Pumped VarioManifold 5. DISTRIBUTION and CONTROL 6 Pumped VarioManifold Description For installing surface heating systems (2 15 heating circuits) in high-temperature heating systems (2-pipe system) with existing circulation pump. The flow temperature of the boiler circuit must be at least 1 K higher than the set flow temperature of the surface heating circuit. Observe the required pipe diameter (capacity) to the Pumped Manifold. Primary pressure required! A Variant A or B 42 mm B mm Flow indicator Regulating valve Pump PVS (WILO Yonos Para 15/6) Flushing ball valve (close when flushing) Immersion sleeve for remote sensor (Fixed value control station A ) or for flow temperature sensor (weather-guided control station B ); contains heat transfer paste (Safety data sheet: Temperature limiter (Factory setting 6 C) 23V AC, 5 Hz (provided connection cable: 3 x.5 mm² [max. 3 A], please note the electrical protection!) Locking ball valve (3/4 female thread) Fixed value control station 23V AC 5 Hz Consumers with presettable flow rate A Optional: PIANO HK(T) with clock Weather-guided control station 23V AC 5 Hz WHR36 External sensor B Consumers with presettable flow rate 4 C 3 C 3 C Fixed value regulator 6 C 5 C Heat generator 4 C 3 C Actuator (VT3FC) 3 C 6 C 5 C Heat generator Main pump Main pump 6 C 45 C 6 C Die Kessel-Vorlauftemperatur 45 C muss mindestens 1 K höher als die eingestellte Heizkurventemperatur sein (= Flächenheizung Vorlauftemperatur ). Fixed value regulator: The flow temperature of the surface heating circuit can be continuously adjusted between 2 and 7 C. (Values of temperature scale are reference values for the flow temperature!) Vorlauftemperatur ( C) 7 Standard 65 Heating curve WHR36: -5 K +5 K K +1 K K Standard Außentemperatur ( C) +1 K

23 Installation instructions & design manual 6 Pumped VarioManifold 5. Page Weather-guided control station for surface heating for systems featuring a main pump Examples for power: Temperatures Flow temp. Power surface hea. cir. boiler circuit Volume flow in boiler circuit: 5 l/h 4/3 C 5 C 1163 W Flow indicator in boiler circuit 17 l/h 4/3 C 6 C 1745 W 4/3 C 7 C 2326 W Volume flow in boiler circuit: 15 l/h 4/3 C 5 C 3489 W 145 l/h 12 l/h 6 l/h Surface heating circuit Boiler circuit 4/3 C 6 C 5234 W 4/3 C 7 C 6978 W Read here! 6.3 Pump PVS (WILO Yonos PARA 15/6) 6, 1 1 Useful head [mwc] 5, 4, 3, 2, 1, Constant differential pressure ( p-c), for surface heating Venting function,2,4,6,8 1, 1,2 1,4 1,6 1,8 2, 2,2 2,4 2,6 Volume flow [m³/h] Variable differential pressure ( p-v) 6.4 Regulating valve Pressure loss in the boiler circuit The flow rate in the boiler circuit is adjusted using the regulating valve when the fixed-value regulator or actuator is fully opened ( ) Example 5 heating circuits: Pressure loss [mbar] Closed Open 2, 2,5 3, 4, Factory settings fully open Searching for: pressure loss and volume flow in boiler circuit, if regulating valve is 3 turns open. Desired: Boiler flow temperature: 55 C Surface heating temperature: 4/3 C Required volume flow in surface heating circuit: 5 x 75 l/h 4 C 2 mbar Example l/h Volume flow [l/h] 3 C 436 W 5 x 75 l/h p 436 W 15 l/h 3 C 55 C 2 mbar (.2 (,2 mwc) mws)

24 - + Page 24 6 Pumped VarioManifold 5. DISTRIBUTION and CONTROL 6.5 WHR36 weather-guided controller Terminal Klemmleiste block A A N 23V AC 1 L Terminal Klemmleiste block BB Electrical connection: Terminal block A, 23V AC 1 Power supply phase 2 Power supply neutral conductor 3-4 Bridge PVS pump incl. safety thermostat 5-6 Schaltstrom Relais max.,8 A 7-8 Thermoelectric actuator (only item no. VT3FC permissible) Boiler demand, with contact 5-6 switched (potential-free, max A) RoHS WHR36 opened Use block terminal provided by customer! PE N L WHR36, PIANO WHR36, terminal Klemmleiste HK(T) with B block clock Taupunktwächter Dew point sensor (optional) (Optional) DC AC Terminal block B, safety-low voltage 1-2 Bridge, or optionally: Room thermostat with clock (part no. RT43) (see connection diagram*) 3-4 External sensor 1) (cable for example 2 x.75 mm², max. 5 m) 5-6 Flow sensor 1) (cable for example 2 x.75 mm², max. 5 m) 7-8 Bridge, or switching contact for pump & actuator On/Off 1) Use original sensor! Control lamps: - + Setting the heating curve: Green LED... Thermoelectric actuator activation Red LED... Self diagnosis or alarm message Green LED... Pump PVS Orange LED... Power supply Self-diagnosis is performed when starting for the first time. The red LED flashes for about 5 seconds and goes out. After about 5 minutes the controller begins to adjust the flow temperature to the heating curve. If the red LED is continuously illuminated an alarm is present. In this case the wiring must be checked. An alarm occurs if the flow temperature in the surface heating circuits exceeds 55 C. The controller returns to normal operation when the flow temperature cools to below 52 C. Attachment: Rear Rückseite side 115 mm 155 mm Klettverschluss Hook & loop strips Dry heating: 25 C C During the heating-up process the outdoor sensor is disconnected (terminal strip B, 3-4). The controller works as a fixed value regulator from 25 C (knob turned fully counterclockwise to -) to 45 C (knob turned fully clockwise to +). The temperature is adjusted manually every day. Sensor resistance values: Flow temperature sensor (NTC resistor) Outdoor sensor (NTC resistor) +15 C +2 C +25 C +3 C +35 C +4 C -2 C -1 C C +1 C +2 C +25 C 18. kω 14. kω 1. kω 7.5 kω 5.5 kω 4.1 kω 8.23 kω 4.9 kω 3. kω 1.9 kω 1.25 kω 1. kω

25 Installation instructions & design manual 6 Pumped VarioManifold 5. Page Troubleshooting Fault Surface heating circuit temperature too low Surface heating circuit temperature too high Troubleshooting Main pump must be available and running Fixed value control station: Switch on the pump PVS Weather-guided control station: - Switch on the controller WHR36, orange LED (power on) & green LED (pump on) should glow - Check the heating curve setting Adjust the surface heating circuit flow Check and regulate the flow in the boiler circuit (regulating valve) Regulate the existing heating system (e.g. radiators) Switch main pump to a higher setting level Check if the flow/return in the boiler circuit has been reversed Air in system, flush again if necessary Fully open the flushing ball valve Consider the time for baking out, moisture in surface heating system (wet plaster, screed,...) Fixed-value control station: Fixed value regulator is not screwed all the way to the end stop Weather-guided control station: Actuator adapter is not screwed all the way to the end stop Check the heating curve setting

26 - SET PROG Page 26 7 Pump Microstation DISTRIBUTION and CONTROL 7 Pump Microstation 7.1 Description For installing surface heating systems (1 2 heating circuits) in high-temperature heating systems (2-pipe system) with existing circulation pump. The flow temperature of the boiler circuit must be at least 1 K higher than the set flow temperature of the surface heating circuit. Observe the required pipe diameter (capacity) to the Pump Microstation. Primary pressure required! A h = 415 mm Variant A or B B mm 1 mm mm mm Flow indicator Regulating valve Pump PMS (WILO Yonos Para 15/6) Feed / drain cock Immersion sleeve for remote sensor (Fixed value control station A ) or for flow temperature sensor (weather-guided control station B ); contains heat transfer paste (Safety data sheet: Manual air-vent Flow valve, adjustable via protection cap 23V AC, 5 Hz (provided connection cable: 3 x.5 mm² [max. 3 A], please note the electrical protection!) Locking ball valve (3/4 female thread) Check valve Fixed value control station 23V AC 5 Hz Consumers with presettable flow rate A Optional: PIANO HK(T) with clock Weather-guided control station 23V AC 5 Hz WHR36 External sensor Consumers with presettable flow rate B Fixed value regulator 5 C Actuator (VT3FC) 5 C 4 C 3 C 3 C 6 C Heat generator 4 C 3 C 3 C 6 C Heat generator Main pump Main pump 6 C 45 C 6 C 45 C Fixed value regulator: The flow temperature of the surface heating circuit can be continuously adjusted between 2 and 7 C. (Values of temperature scale are reference values for the flow temperature!) 7 Standard 65 Heating curve WHR36: -5 K +5 K K +1 K K Standard +1 K

27 Installation instructions & design manual 7 Pump Microstation Page Weather-guided control station for surface heating for systems featuring a main pump Examples for power: Temperatures Flow temp. Power surface hea. cir. boiler circuit Volume flow in boiler circuit: 5 l/h 4/3 C 5 C 1163 W Flow indicator in boiler circuit 17 l/h 4/3 C 6 C 1745 W 4/3 C 7 C 2326 W Volume flow in boiler circuit: 1 l/h 4/3 C 5 C 2326 W 145 l/h 12 l/h 6 l/h Surface heating circuit Boiler circuit 4/3 C 6 C 3489 W 4/3 C 7 C 5234 W Read here! 7.3 Pump PMS (WILO Yonos PARA 15/6) 6, 1 1 Useful head [mwc] 5, 4, 3, 2, 1, Constant differential pressure ( p-c), for surface heating Venting function,2,4,6,8 1, 1,2 1,4 1,6 1,8 2, 2,2 2,4 2,6 Volume flow [m³/h] Variable differential pressure ( p-v) 7.4 Regulating valve Pressure loss in the boiler circuit The flow rate in the boiler circuit is adjusted using the regulating valve when the fixed-value regulator or actuator is fully opened ( ) Example 2 heating circuits: Pressure loss [mbar] Closed Open 2, 2,5 3, 4, Factory settings fully open Searching for: pressure loss and volume flow in boiler circuit, if regulating valve is 3 turns open. Desired: Boiler flow temperature: 55 C Surface heating temperature: 4/3 C Required volume flow in surface heating circuit: 2 x 8 l/h 4 C 3 mbar Example l/h Volume flow [l/h] 3 C 186 W 2 x 8 l/h 3 C p 55 C 3 mbar (.3 (,3 mwc) mws) 186 W 74 l/h

28 Page 28 7 Pump Microstation DISTRIBUTION and CONTROL 7.5 WHR36 weather-guided controller Terminal Klemmleiste block A A N 23V AC 1 L Terminal Klemmleiste block BB Electrical connection: Terminal block A, 23V AC 1 Power supply phase 2 Power supply neutral conductor 3-4 Bridge PMS pump incl. safety thermostat 5-6 Schaltstrom Relais max.,8 A 7-8 Thermoelectric actuator (only item no. VT3FC permissible) Boiler demand, with contact 5-6 switched (potential-free, max A) RoHS WHR36 opened Use block terminal provided by customer! PE N L WHR36, PIANO WHR36, terminal Klemmleiste HK(T) with B block clock Taupunktwächter Dew point sensor (optional) (Optional) DC AC Terminal block B, safety-low voltage 1-2 Bridge, or optionally: Room thermostat with clock (part no. RT43) (see connection diagram*) 3-4 External sensor 1) (cable for example 2 x.75 mm², max. 5 m) 5-6 Flow sensor 1) (cable for example 2 x.75 mm², max. 5 m) 7-8 Bridge, or switching contact for pump & actuator On/Off 1) Use original sensor! Control lamps: - + Setting the heating curve: Green LED... Thermoelectric actuator activation Red LED... Self diagnosis or alarm message Green LED... Pump PMS Orange LED... Power supply Self-diagnosis is performed when starting for the first time. The red LED flashes for about 5 seconds and goes out. After about 5 minutes the controller begins to adjust the flow temperature to the heating curve. If the red LED is continuously illuminated an alarm is present. In this case the wiring must be checked. An alarm occurs if the flow temperature in the surface heating circuits exceeds 55 C. The controller returns to normal operation when the flow temperature cools to below 52 C. Attachment: Rückseite Rear side mm 155 mm Klettverschluss Hook & loop strips Dry heating: 25 C C During the heating-up process the outdoor sensor is disconnected (terminal strip B, 3-4). The controller works as a fixed value regulator from 25 C (knob turned fully counterclockwise to -) to 45 C (knob turned fully clockwise to +). The temperature is adjusted manually every day. Sensor resistance values: Flow temperature sensor (NTC resistor) Outdoor sensor (NTC resistor) +15 C +2 C +25 C +3 C +35 C +4 C -2 C -1 C C +1 C +2 C +25 C 18. kω 14. kω 1. kω 7.5 kω 5.5 kω 4.1 kω 8.23 kω 4.9 kω 3. kω 1.9 kω 1.25 kω 1. kω

29 Installation instructions & design manual 7 Pump Microstation Page Modification for operation with thermoelectric actuator Actuator (e.g. part no.: VT3) Return valve (part no.: PMX42) First remove the blind cap and fit the return valve. Then the actuator can be clipped onto the fitted adapter ring. 7.7 Troubleshooting Fault Surface heating circuit temperature too low Surface heating circuit temperature too high Troubleshooting Main pump must be available and running Fixed value control station: Switch on the pump PMS Weather-guided control station: - Switch on the controller WHR36, orange LED (power on) & green LED (pump on) should glow - Check the heating curve setting Adjust the surface heating circuit flow Check and regulate the flow in the boiler circuit (regulating valve) Regulate the existing heating system (e.g. radiators) Switch main pump to a higher setting level Check if the flow/return in the boiler circuit has been reversed Air in system, flush again if necessary Consider the time for baking out, moisture in surface heating system (wet plaster, screed,...) Fixed-value control station: Fixed value regulator is not screwed all the way to the end stop Weather-guided control station: Actuator adapter is not screwed all the way to the end stop Check the heating curve setting

30 2,5 2, 1,5 1,,5 2,5 2, 1,5 1,,5 2,5 2, 1,5 1,,5 Page 3 8 Return temperature limiter (for one surface heating circuit) DISTRIBUTION and CONTROL 8 Return temperature limiter (for one surface heating circuit) 8.1 RTL valve Feed cock 3/4" for flushing the surface heating circuit flow indicator adjustable between l/min with locking Feed cock 3/4" for flushing the surface heating circuit 2 Setting the return temperature* Mounting strap VL Consumer with presettable flow rate 1 Screw on the expanding element sensor Locking ball valve Lid dimensions W x H = 34 x 235 mm Return temperature limiter with expanding element sensor 2-4 C settable, swivel-mounted Boiler flow 3/4 Eurocone, max. 6 C Boiler return: 3/4" Eurocone Surface heating flow: 3/4" Eurocone Surface heating return: 3/4" Eurocone Heating pump: Caution: observe required pump performance! 2,5 2, 1,5 1,,5 Heat generator for example gas, oil, solid fuel boiler, remote heating and buffer VL Dimensions mounting box: W x h x d = 3 x 2 x 6 mm *The scale of 2-4 gives the following target temperatures (guideline): VL 2 2,5 3 3,5 4 2 C 25 C 3 C 35 C 4 C 8.2 RTLT valve (with thermostatic valve) Dimensions mounting box: W x h x d = 3 x 2 x 6 mm thermostatic valve Lid dimensions W x h = 34 x 235 mm Fork piece VL Lid of RTLT valve with opening for thermostatic valve Turn valve body upwards Attach fork piece and thermostatic valve Close mounting box

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