3
Hydraulic unit WHSH HE 24V (0-10 V) L
Installation and Operating Instructions
Medium:
Non-aggressive liquids (e.g. water and appropriate water glycol mixtures according to VDI 2035).
Not suitable for steam, oily and aggressive media.
2 .1 Materials
Fittings: Brass
Pump:
Grey cast iron casing
Handles:
PA 6.6
Wall bracket:
Steel, galvanised
Insulation: EPP
Flange pipe:
Copper
Seals: EPDM
2 .2 Dimensions/connection dimensions
3 .0 Assembly and installation instructions
m
Risk of injury .
Ensure that the pipes and fittings are cool and empty before working on the system.
Decommission the system. The fitting group can reach the media temperature during operation.
Threads, bores and corners have sharp edges. Only touch with suitable protective gloves.
m
Risk of injury due to electric shock .
Make sure components are isolated from the power supply and protected against reactivation before opening and
working on electronic components!
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Risk of material damage!
Fats or oils must not be used during installation.
These can destroy seals. Particles of dirt as well as fat and oil residues must be rinsed out of the supply lines.
A dirt trap should be installed in front of the valve.
2 .3 Flow rate diagram
Fig .2
Fig .1
2 .4 Pump curves
Fig .3
CHAPTER 3
ASSEMBLY
n
m
CAUTION
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DANGER
ATTENTION
EN
Pr
essur
e loss
Pr
essur
e loss
Flow
