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Isomix-HC
Control station for load-based control of the flow
temperature in surface heating/cooling systems
Installation and Operating Manual
(translated from the original operating manual)
Watts Industries Deutschland GmbH
Godramsteiner Hauptstr. 167
76829 Landau, Germany
Tel.: +49 (0) 6341 96560
wide@wattswater.com
WattsWater.de
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Table of Contents
Summary of Contents for Watts Industries Isomix-HC
- Page 1 Isomix-HC Control station for load-based control of the flow temperature in surface heating/cooling systems Installation and Operating Manual (translated from the original operating manual) Watts Industries Deutschland GmbH Godramsteiner Hauptstr. 167 76829 Landau, Germany Tel.: +49 (0) 6341 96560 wide@wattswater.com...
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Page 2: Table Of Contents
ENGLISH Contents 1 General information 1 General information ........2 1.1 Important information about the installa- tion and operating manual 1.1 Important information about this installation and operating The plant operator is responsible for manual ..................2 ensuring compliance with the local laws and regulations 1.2 Product conformity ............2 (e.g. -
Page 3: Technical Data
ENGLISH 2 Technical data Electrical connection Operating voltage 230 V Frequency 50 Hz Nominal heat output approx. 14 kW Hydraulic performance data Max. operating pressure 6 bar Max. ambient temperature 40 °C Max. operating temperature 80 °C Control range of flow temperature 5 –... -
Page 4: Safety
(e.g. misuse, disregarding notices, etc.) that may The Isomix-HC can be used to operate a heating system that cause serious physical injury or death. is set to the individual requirements of a home or of individual living rooms or commercial areas. -
Page 5: Responsibilities Of The Plant Operator
ENGLISH 4 Structure 3.5 Responsibilities of the plant operator The plant operator must ensure that: • the Isomix is used only for its intended purpose • the Isomix is installed, operated and maintained according to the specifications of the installation and operating manual •... -
Page 6: Function
ENGLISH 5 Function 6 Installation and commissioning The set value for the flow temperature, determined by the Electrical energy! heating controller using the current external temperature and the heating curve, is monitored continuously by the flow Risk of death from electric shock. sensor. -
Page 7: Installation
System diagram of heating elements and surface heating/cooling system One heat generator Separate heating and cooling generator Shared riser Separate risers Isomix-HC Isomix-HC System diagram of surface heating/cooling system System diagram of surface heating/cooling system Separate heating and cooling generator... - Page 8 ENGLISH Hot water! Heat generator Risk of severe scalding. Primary circulation pump boiler/heating circuit Primary supply circuit Do not reach into the hot water when emptying the Isomix. Primary return circuit Ensure that the Isomix has cooled Heating element / radiator down before carrying out maintenance, Underfloor heating/cooling supply cleaning and repair work.
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Page 9: Initial Commissioning
ENGLISH 6.2 Initial commissioning All screw fittings must be checked and tightened if necessary prior to installation and commissioning! Torque: • ¾” screw fittings 35 Nm • 1” screw fittings 55 Nm • 1 ” screw fittings 130 Nm 1. Connect the control station to the pipe network. 2. -
Page 10: Use In Combination With Watts Heat Interface Unit Hiu 2
6.3 Use in combination with Watts Heat Interface Unit HIU 2 For use in combination with the HIU 2 Heat Interface Unit, the Isomix-HC must be converted (overhead) and the eccentric rotated. 1. Release nut (A). 2. Rotate eccentric (B). -
Page 11: Pressure Loss Curve
ENGLISH 7 Pressure loss curve Pressure loss Isomix floor control unit Flow rate [L/h] ISOMIX HC-IM-DE-W-DE-10-2018-Rev1_enUS | Art. No. 10070436... -
Page 12: Maintenance
This applies especially to mechanical parts and parts that Maintenance of the Isomix-HC must be come into contact with water and steam, such as hoses, carried out only by trained personnel seals, valves, etc. -
Page 13: Troubleshooting
ENGLISH 9 Troubleshooting Fault Possible cause Remedy Underfloor heating circuits do not heat up; pump not running Temperature limiter (TL) is switching the control station Set TL to approx. 10 K higher than the underfloor heating pump off. flow temperature. Reason: TL setting is too low. -
Page 14: Spare Parts List
11.1 Return to the manufacturer Get in contact with the manufacturer if you would like to return the Isomix or parts of it. 10080536 Isomix-HC eccentric 11.2 Notification of administrative bodies and 1” fl. x 1” fl. the manufacturer Inform the manufacturer of decommissioning and disposal of the Isomix for statistical purposes.