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Summary of Contents for PAW FriwaMega - DN 32
- Page 1 PAW GmbH & Co. KG Böcklerstr. 11, D-31789 Hameln, Germany Phone: +49-5151-9856-0, Fax: +49-5151-9856-98 E-mail: info@paw.eu, Web: www.paw.eu Installation and Operation Instructions Domestic Hot Water Module FriwaMega – DN 32 2014/11 99640766x-mub-en – V03...
- Page 2 Item no. 99640766x-mub-en - Version V03 – Date 2014/11 Translation of the original instructions PAW GmbH & Co.KG We reserve the right to make technical changes without notice! Böcklerstraße 11 Printed in Germany – Copyright by PAW GmbH & Co. KG D-31789 Hameln, Germany 99640766x-mub-en – V03 2014/11...
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Page 3: Table Of Contents
1 General Information Contents General Information ......................4 Scope of these instructions ..................4 About this product ......................5 Designated use ......................5 Safety instructions ......................6 Product description ......................8 Dimensioning and planning .................... 10 Dimensioning of the tank .................... 11 Circulation mode ...................... -
Page 4: General Information
1 General Information Carefully read these instructions before installation and commissioning. Save these instructions in the vicinity of the installation for future reference. 1 General Information Scope of these instructions These instructions describe the installation, commissioning, function and operation of the domestic hot water module FriwaMega. -
Page 5: About This Product
Due to its design, the station must be mounted and operated in a vertical position! The technical data specified in these instructions must be observed. Only use PAW accessories with the domestic hot water module. Improper usage excludes any liability claims. -
Page 6: Safety Instructions
2 Safety instructions 2 Safety instructions The installation and commissioning as well as the connection of electrical components require technical knowledge commensurate with a recognised vocational qualification as a fitter for plumbing, heating and air conditioning technology, or a profession requiring a comparable level of knowledge [specialist]. - Page 7 2 Safety instructions NOTICE Material damage due to mineral oils! Mineral oil products cause lasting damage to seals made of EPDM, whereby the sealant properties get lost. We do not assume liability nor provide warranty for damage to property resulting from sealants damaged in this way. ...
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Page 8: Product Description
3 Product description 3 Product description Connections primary circuit Flow from the buffer tank (warm) Return to the buffer tank (cold) Equipment primary circuit Return ball valve Check valve Heat exchanger Temperature sensor Pt1000 Drain valve Primary pump Check valve Flow ball valve 99640766x-mub-en –... - Page 9 3 Product description Connections secondary circuit Cold water supply Hot water outlet Hot water circulation Equipment secondary circuit Piston valve hot water circulation Piston valve cold water inlet Pressure relief valve 10 bars, suitable for domestic hot water Only for the protection of the station. Does not replace the pressure relief valve that has to be mounted on site! Temperature sensor Pt1000...
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Page 10: Dimensioning And Planning
4 Dimensioning and planning 4 Dimensioning and planning The FriwaMega is a domestic hot water module operating on the principle of a flow-type water heater. The FriwaMega will only work flawlessly if the installation meets certain requirements. Please take some time to plan the installation. WARNING Danger of scalding due to hot water! Undesirable circulation of water in the primary circuit can cause the exit of water... -
Page 11: Dimensioning Of The Tank
4 Dimensioning and planning Dimensioning of the tank The following table helps you to calculate the approximately required volume of the buffer tank. Temperature in Domestic hot water temperature Required tank volume the buffer tank set at the controller per litre of hot water 50 °C 45 °C 1.3 litres... -
Page 12: Circulation Mode
5 Circulation mode 5 Circulation mode The domestic hot water module is optionally equipped with a circulation pump. The FriwaMega without circulation can be subsequently equipped with a circulation set (item no. 6404134GH7 or 6404135GH10) for an internal retrofitting. Three different operating modes of the circulation pump are set at the controller (see controller instructions, menu "Func"... -
Page 13: Assembly And Installation [Specialist]
6 Assembly and installation [specialist] 6 Assembly and installation [specialist] The domestic hot water module FriwaMega must only be connected with the storage tank by separate connections for flow and return. External pumps must not be installed between the domestic hot water module and the buffer tank. The circulation of water causes considerable temperature fluctuations. - Page 14 6 Assembly and installation [specialist] WARNING Risk to life and limb due to electric shock! Prior to commencing electrical work on the controller, pull the mains plug! Only after completing all installation work, plug the mains plug of the controller into a socket.
- Page 15 6 Assembly and installation [specialist] 7. Connect the domestic hot water module with the installation by using the pipes as shown in the figure below. When the station is delivered, the ball valves and piston valves are closed, in order to protect the station against dirt. Before connecting the pipes, make sure that the connections are free from dirt.
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Page 16: Commissioning [Specialist]
7 Commissioning [specialist] 7 Commissioning [specialist] Note! Slowly open the valves in the pipes and in the module, in order to prevent pressure surges. Function check valve The ball valves (A) and (H) in the primary circuit are equipped with check valves (B) and (G), in order to avoid unwanted gravity circulation. -
Page 17: Filling The Primary Circuit
7 Commissioning [specialist] Filling the primary circuit WARNING Danger of scalding due to hot water! The system is under pressure. By opening the pressure relief valve, hot water with a temperature of up to 90 °C may exit and cause personal injury. ... -
Page 18: Commissioning Of The Controller
7 Commissioning [specialist] Commissioning of the controller WARNING Risk to life and limb due to electric shock! Check if the sensors and the pumps are properly connected to the controller and if the controller housing is closed. Only under these circumstances, the mains plug of the controller can be plugged into a socket. - Page 19 7 Commissioning [specialist] 8. Slowly open the piston valves (b) and (k) on the secondary side. 9. Open at least one withdrawal point for domestic hot water (for example a tap) with a flow rate of at least 10 l/min and let the water run for about 2 minutes to deaerate the secondary circuit.
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Page 20: Maximum Withdrawal Flow Rate
7 Commissioning [specialist] Maximum withdrawal flow rate The following diagram illustrates the maximum withdrawal flow rate depending on the tank temperature with a preset hot water temperature of 45 °C at the tap. The integrated control prevents the temperature from falling, as long as the maximum flow rate is not exceeded and as long as the water in the buffer tank maintains a sufficient temperature. - Page 21 7 Commissioning [specialist] The following diagram illustrates the maximum withdrawal flow rate at a domestic hot water temperature of 45 °C at the tap, after the addition of cold water of 10 °C. The domestic hot water temperature set at the controller is of 60 °C. Temperature of the buffer tank Example 2 Example 1...
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Page 22: Setting The Temperature
7 Commissioning [specialist] Setting the temperature Set the desired (maximum) domestic hot water temperature at the controller under "Para" (see controller instructions, page 24). WARNING Danger of scalding due to hot water! The maximum domestic hot water temperature must not exceed 60 °C in order to avoid scalding at the tap. -
Page 23: Maintenance [Specialist]
8 Maintenance [specialist] FriwaMega FriwaMega FriwaMega 45 °C 82 l/min 199 kW 50 °C 45 °C 123 l/min 300 kW 50 °C 100 l/min 114 l/min 278 kW 60 °C 55 °C 77 l/min 98 l/min 240 kW 45 °C 130 l/min* 316 kW 50 °C... -
Page 24: Spare Parts [Specialist]
9 Spare parts [specialist] 9 Spare parts [specialist] NOTICE Complaints and requests/orders of spare parts will only be processed with information on the serial number! The serial number is placed in the upper right corner of the support sheet in the station. Control and insulation 99640766x-mub-en –... -
Page 25: Hydraulics Primary Circuit (6407660, 6407661, 6407662)
9 Spare parts [specialist] Hydraulics primary circuit (6407660, 6407661, 6407662) 2014/11 99640766x-mub-en – V03... -
Page 26: Hydraulics Secondary Circuit Friwamega Without Circulation (6407660)
9 Spare parts [specialist] Hydraulics secondary circuit FriwaMega without circulation (6407660) 99640766x-mub-en – V03 2014/11... -
Page 27: Hydraulics Secondary Circuit Friwamega With Circulation (6407661, 6407662)
9 Spare parts [specialist] Hydraulics secondary circuit FriwaMega with circulation (6407661, 6407662) FriwaMega Pump (secondary) Item number with circulation 6407661 Grundfos UPML 25-105 N, high-efficiency pump E12160 6407662 Grundfos UPM2 15-75 CIL2, high-efficiency pump E1216311VA 2014/11 99640766x-mub-en – V03... -
Page 28: Technical Data
10 Technical data 10 Technical data Dimensions FriwaMega Height (with insulation) 1402 mm + adjusting of the stand feet approx. 15 mm Height (with circulation set) 1500 mm + adjusting of the stand feet approx. 15 mm Width (with insulation) 710 mm Depth (with insulation) 920 mm... -
Page 29: Pressure Drop Characteristics
10 Technical data 10.1 Pressure drop characteristics Flow rate [m³/h] 2014/11 99640766x-mub-en – V03... -
Page 30: Commissioning Report
11 Commissioning report 11 Commissioning report Installation operator Location of installation Serial numbers: FriwaMega Flow rate sensor Controller Software version Pipes primary ⌀ Pipes secondary ⌀ Other additionally installed Circulation set Return distribution set components Others: Have both circuits been correctly flushed and vented? (no air noises in the pump) Vented Are all the shut-off valves open in the cold water line? - Page 31 11 Commissioning report 2014/11 99640766x-mub-en – V03...
- Page 32 PAW GmbH & Co.KG www.paw.eu Böcklerstraße 11 Phone: +49 (0) 5151 9856 - 0 D-31789 Hameln, Germany Fax: +49 (0) 5151 9856 - 98 99640766x-mub-en – V03 2014/11...
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