7
EN1H-2615GE25 R1020
Balancing
The unit is equipped with a static balancing valve. In addition can be added
the diaphragm for differential pressure balancing (not included with HIU).
A probe is already installed on pipe "f" to facilitate the installation.
See in picture below the suggest installation.
Metering
The unit can be equipped with energy and water meters. Stub pieces are
arranged on the unit to facilitate the installation:
• remove the stub piece
• install the meter (max torque 50Nm)
- original sealings installed with stub pieces must be replaced
- When installing display of ultrasonic heatmeter take care to use not too
long screws to avoid touching the pipe under
• connect temperature sensors in the pre-arranged probes
Heatmeter 1 will measure the total energy consumtpion both for heating and
domestic hot water production.
Heatmeter 2 will measure the energy consumption of apartment heating only.
Energy consumption only for domestic hot water production can be
measured as difference between heatmeter 1 and heatmeter 2.
Backflow preventer
As required by regulations insert a backflow preventer on the domestic cold
water inlet.
Backflow preventer is not included with the unit.
CAUTION
Sharp edges could cause injury.
The Heat meter should be installed before the impulse copper tube of
diaphragm unit for dynamic balancing. Don't bend the tube to the
sharp angles - it may cause breaks.
Before installation of any meter take out the old washer, clean the
sealing surface and use new washer (not included).
Unit Components
abcdef g
Heat exchanger (insulated)
Strainer (behind heat exchanger)
Temperature sensor
Place for heatmeter 1
Place for water meter
Heatmeter 1 temperature probe
Passage for electric connections
Heatmeter 2 temperature probe
Static balancing valve
ON/OFF motorized valve
Modulating motorized valve
Pipes (insulated)
Support for ultrasonic heatmeters
Cabinet with door
Place for heatmeter 2
Flow meter Air valves Electronic controller
Stop valves
(pipe probe for upgrade to
for sanitary water
automatic)
HYBO - HYDRAULIC INTERFACE UNIT
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