201-2001
heat interface unit
1
These instructions must be read and understood
before installing and maintaining the HIU.
CAUTION! FAILURE TO FOLLOW THESE
INSTRUCTIONS COULD RESULT IN A SAFETY
HAZARD!
1
The device must be installed, commissioned and
maintained by qualified technical personnel in accordance
with national regulations and/or relevant local
requirements.
2
If the device is not installed, commissioned and maintained
correctly in accordance with the instructions provided in
this manual, it may not work correctly and may endanger
the user.
3
Flush the pipework thoroughly before installing the HIU to
remove any particles, rust, incrustations, limescale, welding
slag and any other contaminants.
The water circuits must be clean and free from debris.
4
Make sure that all connection fittings are watertight.
5
When connecting water pipes, make sure that threaded
connections are not mechanically overstressed. Over time
this may result in breakage, causing water damage and/or
personal injury.
6
Water temperatures higher than 50˚C may cause severe
burns. When installing, commissioning and maintaining the
device, take the necessary precautions so that these
temperatures will not be hazardous for people.
7
In the case of particularly hard or impure water, there must
be suitable provision for filtering and treating the water
before it enters the device, in accordance with current
legislation. Failure to do so may result the HIU becoming
damaged or working incorrectly.
8
Any use of the HIU other than it’s intended use is
prohibited
9
Any coupling of the device with other system components
must be made while taking the operational characteristics
of both units into consideration.
10
An incorrect coupling could compromise the operation of
the device and/or system.
11
If the system is prone to ‘water hammer’ a water hammer
arrester must be installed.
12
If hot water recirculation is present or a non-return valve is
installed in the cold water inlet, provision must be made to
accommodate water expansion by fitting an expansion
vessel.
Safety Instructions
Function
201-2001 Heat Interface Units (HIU) control the domestic hot
water and space heating in an individual apartment within a
centralised boiler or district heating system.
Wall mounted unit.
C
ontent
Function and product range
1
Safety instructions
1
Technical specification
2
Dimensions
3
Components
4
Schematic drawing
5
Installation
5
Electrical schematic
5
Technical specification - 2-port control
valve actuator
6
Manual operation
6
Technical specification - DPCV
6
Shutting off flow
6
WARNING
DISCONNECT
POWER SUPPL
Y
BEFORE REMOVING COVER
