Filling The Tank; Electrical Connection - Pfannenberg EB Series Quick Instructions

EN

12. Filling the tank

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Fill tank with coolant (water-glycol mixture in the appropriate concentration) until the maximum level is
reached (water quality and treatment should be established according to the application specifications)
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Chiller circuit is designed with non-ferrous materials: stainless steel, brass, copper, bronze, Polyethylene,
rubber etc.
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To speed up the filling procedure it is recommended to fill-in the user circuit as well.
For standard application with a minimum ambient temperature +13 °C the suggested fluid is:
Pfannenberg Protect PP20E
CAUTION
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Do not use any automotive antifreeze
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Do not use distilled water
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Do not use other fluids or additives which the chemical composition is not well known
In case of any doubt contact Service Pfannenberg.

13. Electrical connection

DANGER
Life-threatening danger due to electric shock
Live units and exposed connection cables can generate an electric shock and cause severe accidents.
➢ Work on electrical connections must be carried out exclusively by trained, qualified electricians.
➢ Switch OFF the electrical power before wiring the power cord.
➢ To avoid accidents, turn the main switch of the customer's e-box to the OFF position and lock it.
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Appendix I - Fig. 5
➢ Test to ensure the absence of voltage on the unit and on all power supply cables.
➢ Lightning protection of the unit (outdoor installation) must be carried out by qualified engineers.
•
Electrical power supply cables and protections should be sized according to the technical data of the unit
and according to the local and power distributor Standards.
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Electrical power supply cables should be carried into the electrical box and ensure by the connecting
glands in the bottom side of electrical box.
•
Connect the ground conductor yellow-green to the PE terminal block in the electrical box.
•
Connect the electrical power supply cables direct to the main switch QS0 following the right phase
sequence.
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Do not switch on the electrical power the chiller if it has been moved from a cold to warm environment.
Humidity inside the electrical devices could cause condense water and consequent damage.
•
Check that the voltage supply is according to the electrical data in the type label.
•
Check that the transformer of auxiliary circuit is correctly connected in conformity to the supply voltage and
frequency.
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Appendix I - Fig. 6
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