Pfannenberg DTS 3000 Series - Manual (Page 7)

4
the accessory pack) to the cooling unit as noted on
the individual cooling unit information sheet.
Make sure that the insulation strips are correctly
attached and placed correctly on the cooling unit.
The correct fitting and location of the insulation
strips is required for the proper operation of the
cooling unit.
Attach the cooling unit to the electrical panel
enclosure by use of the stud bolts inserted as
described above.
WARNING!
Do not move the cooling unit by the piping.
Doing so will damage the cooling unit and
void the warranty.
The cooling unit is then completely attached to the
electrical panel enclosure from inside the enclosure
by use of the screws and washers supplied in the
accessory pack.
Tighten the fasteners until the cooling unit insulation
strips are compressed to a thickness of 2 mm
(approx. .080”)
Install the condensate drainage hose to the drain
located in the cooling unit base.
Reinstall the cover using the original mounting
screws.
4.3 Power connection
WARNING!
Make sure that the main power supply to the
cooling unit is turned off while making the
power connections.
The cooling unit power supply shall be fused as
indicated on the unit ID plate by means of a series
connected power line connection. A temperature
control can not be connected in series with the
cooling unit power supply.
All power connections and / or repairs, if or when
required, shall only be carried out by authorized,
trained electricians.
WARNING!
The cooling unit may be damaged due to
compressor rotating in the incorrect direction.
On three phase connection (400V/460V)
units the power supply connections are
phase sensitive. Make sure that the power
connections are correct or the cooling unit will
not operate properly.
Power supply connection
All units are provided with either a molded cord
or permanent connection internal to the unit.
permanent connection must be secured to the
cooling unit by means of a cable strain relief.
Both the main power supply voltage and frequency
shall correspond to the nominal values shown on the
cooling unit ID plate.
WARNING!
The cooling unit may be damaged if the supply
voltage is too high.
This refers to cooling units with (460V / 400V)
multiphase connections.