Connection To The Cooling System - KEB COMBIVERT F5 Betriebsanleitung

3.6 Connection to the
Cooling System
closed cooling circuit
The cooling water connection is to be carried out with elastic pressure-resistant
hoses and to be secured with clamps (observe the direction of flow and test for
leaks!) For the connection to the cooling system the delivered connecting adap-
ter with 1/2-inch-gland 00.00.650-G012 has to be used (Whitworth-pipe thread
DIN ISO 228-1). For the screw connections and also for the metallic articles in the
cooling circuit which are in contact with the coolant (electrolyte) a material is to be
selected, which forms a small electromotive series with the heat sink to avoid contact
corrosion and/or pitting corrosion (electro-chemical voltage series, see annex). A
ZnNi coated steel screw connection is recommended. Other materials is before the
employment to be examinated in each case. The specific case of application must
be checked by the customer in tuning of the complete cooling circuit and must be
classified according to the used materials. With PVC hoses and seals take care that
halogen-free materials are used.
A liability for occuring damages by wrongly used materials and from this
resulting corrosion cannot be taken over!
The connection to the cooling system can be executed as closed or opened cooling
circuit, but it depends on the local circumstances. The connection to the closed
cooling circuit is recommended, since the danger of contamination of the coolant
is very small. Preferably also a monitoring of the pH value of the coolant should be
installed.
Pay attention to an appropriate conductor cross section of the copper bars at required
equipotential bonding that a prevention of electro-chemical procedures is given.
In case of a closed cooling circuit the outflow coolant is cooled down by a heat
exchanger or by a re-cooling system and refeed back into the cooling circuit.
Valve
Pump
Heat exchanger,
Re-cooling
Inflow Outflow
do.xx
do.xy
COMBIVERT
system
Coolant
KEB
27