2
HIU2-IM-DE-W-DE-08-2018-Rev1_DE-enUS | Art. No. 10078860
EN
ENGLISH
Contents
1 General information ...................................... 2
1.1 Important information about this installation and operating
manual ...........................................................................2
1.2 Product conformity .........................................................2
1.3 Product features ..............................................................2
1.4 Product label ...................................................................3
2 Technical data ............................................... 4
3 Safety .............................................................. 5
3.1 Depiction of safety information ........................................5
3.2 Important safety information ...........................................5
3.3 Intended use ...................................................................5
3.4 Foreseeable misuse ........................................................5
3.5 Responsibilities of the operator .......................................5
3.6 Personnel groups ............................................................6
3.7 Information on the operating environment .......................6
4 Structure ........................................................ 7
4.1 Hydraulic diagram ...........................................................8
4.2 HIU 2 HK.........................................................................9
4.3 HIU 2 HKM.................................................................... 10
5 Installation and commissioning .................11
5.1 Installation ..................................................................... 11
6 Power curves and diagrams ...................... 13
6.1 Power curves ................................................................ 13
6.2 Pressure loss diagrams ................................................. 14
7 Maintenance ................................................ 16
7.1 Annual maintenance intervals ........................................ 16
7.2 Replacement of wear parts ........................................... 16
7.3 Cleaning the dirt trap ..................................................... 17
7.4 Replacing the plate heat exchanger .............................. 17
8 Spare parts list ............................................ 18
9 Disposal ........................................................ 19
9.1 Return shipment to the manufacturer ............................ 19
9.2 Reporting to administrative bodies and the
manufacturer ................................................................. 19
1 General information
1.1 Important information about the installa-
tion and operating manual
The operator is responsible for ensuring
adherence to the local laws and regulations
(e.g. accident prevention regulations,
etc.).
Incorrect operation or operating the HIU 2
contrary to the specifications shall void all
rights to any warranty claim.
This installation and operating manual
• is a component of the HIU 2
• contains instructions and information on safe and correct
installation and commissioning of the HIU 2
• must be available to all users throughout the entire service
life of the HIU 2
• is intended for trained personnel who are familiar with the
applicable standards and provisions and, in particular, with
the relevant safety concepts and the operation and mainte-
nance of the HIU 2
• is protected by copyright and may not be altered without
the manufacturer’s permission
• may not be made accessible to unauthorized personnel,
either in original form or as a copy.
1.2 Product conformity
A Declaration of Conformity according to the Machinery
Directive 2006/42/EC has been issued for this HIU 2 product.
1.3 Product features
• Stable bracket
• Intended for installation in a surface-mounted cabinet,
flush-mounted cabinet or EPP insulation.
• All connections to the system with 1” male thread and 3/4”
male thread, and flat sealing
• Tapping temperature adjustable
• Max. draw-off capacity of DHW 12 l/min and 17 l/min
at DHW heated from 10 to 45 °C, at a primary supply
temperature of 65 °C and 200 mbar delta p.
• Very convenient controls, compact, space-saving design.
• Modular structure and suitable for connection to manifolds.
