Installation; Hydraulic Connections - Pfannenberg EB Series Quick Instructions

EN

10. Installation

NOTICE
The chillers are designed for indoor installation, on request the OD option is available for outdoor installation.
For proper operation of the unit the following points must be observed.
•
Place the chiller in an area shielded from any possible manufacturing residuals (shavings, dust, etc.)
and well-ventilated, away from heat sources and direct influence of sun light.
•
Chillers should be placed in an area without chemical and corrosive substances, flammable gas, hot air
and liquid coming from nearby processes.
•
Position the unit as close as possible to the user system, to avoid pressure losses along the hydraulic
connection pipes.

Appendix I - Fig. 4
•
Use the adjustable feet (where installed) to level off the unit.
•
Provide enough space for access and air circulation, see drawing.
•
On request the chiller can be equipped with an ALF aluminum air filter, suitable for dry dust, and oily
mists.

11. Hydraulic connections

For proper operation of the unit the following minimum requirements for the hydraulic circuit must be observed.
•
The chiller has been cleaned by means of specific cleaning products. Make sure that the pipes used do not
contain dirt or processing residues; if in doubt, perform one or more cleaning cycles.
•
Use pipes and fittings with same diameter of the circuit connections and with adequate resistance to the
liquid pressure.
•
Install one shut-off valve at each connection inlet and outlet to isolate the chiller from the system.
• Install a filter on the chiller inlet return pipe, with metal mesh of 100 μm.
•
Insulate the pipes to prevent condensation.
• If user's circuit is at least 500 mm over the hydraulic connection of the chiller, the fluid in the piping may
drain back and overflow the chiller reservoir if the chiller is shut down. This can be prevented by using a
check valve in the supply line, and either a solenoid valve on the return line.
For proper operation of the unit the following minimum requirements for the hydraulic circuit must be observed.
•
The chiller has been cleaned by means of specific cleaning products. Make sure that the pipes used do not
contain dirt or processing residues; if in doubt, perform one or more cleaning cycles.
▪ Install a filter on the chiller inlet return pipe, with metal mesh of 100 μm.
▪ Flush the system with FUCHS "Maintain professional washer LI" (Pfannenberg part number:
46783000135 – 25 kg Tank) at least for 10 minutes.
▪
Clean the filer if necessary and remove it after finishing the cleaning procedure.
•
Use pipes and fittings with same diameter of the circuit connections and with adequate resistance to the
liquid pressure.
•
Install one shut-off valve at each connection inlet and outlet to isolate the chiller from the system.
• Install a filter on the chiller inlet return pipe, with metal mesh of 100 μm.
•
Insulate the pipes to prevent condensation.
• If user's circuit is at least 500 mm over the hydraulic connection of the chiller, the fluid in the piping may
drain back and overflow the chiller reservoir if the chiller is shut down. This can be prevented by using a
check valve in the supply line, and either a solenoid valve on the return line.
Pfannenberg GmbH
Dilution percentage:
2 % Professional Washer
98 % Water (it is recommended to use demineralized water)
17 / 60