Compressor Room Ventilation; Electrical Connection - Hertz HDD Series Instruction Manual

TRANSPORTATION, HANDLING, INSTALLATION
6.3

Compressor Room Ventilation

➢ To keep the operating temperature at a certain value, place the compressor at a place of
adequate air flow. The temperature of the compressor operating room should not be less than 35
o
(2 C), nor higher than 104
temperature is less than 35
➢ If you think that there would be no adequate air flow in the compressor operating room, you
are suggested to arrange appropriate room ventilation, or discharge the hot air emitted from
the compressor outside the compressor room. In this arrangement, the hot air emitted from
the compressor room should not be returned to the compressor room. Hence, the hot air discharge
and the room air inlet should not take place at the same front.
➢ Hot air outlet duct, should be bigger than compressor's hot air outlet cover and shouldn't be too long
or sinuous as to create large losses.
➢ If it is wanted to operate the compressor without discharge whole inside the room, and
discharge the hot air to outside the room through a fan, a fan of the equivalent capacity with
the fan on the compressor would be simply sufficient. Place this fan as near as possible to the
hot air outlet of the compressor.
➢ The area of clean air intake should roughly and practically be 1.5 to 2 folds of the compressor
intake grill field.
➢ The compressor hot air outlet should not take place on the same wall with the windows where
the fresh air could enter the room.
➢ Take action to keep the compressor cooling radiator away from the direct sunlight or regional
strong winds.
➢ Prevent the compressor room to be exposed to hazardous gas and steam as well as the heat
and abrasive dusts emitted by such equipment as the central heating boiler or generating
sets.
6.4

Electrical Connection

Have the electrical connections of the compressor made by a qualified electrician. Electrical diagrams and
spare parts lists of your compressor are provided in addition to the manual.
Your compressor has been designed to work in three-phase systems. Voltage and frequency information is
located on the plate of your compressor. The information on the supply cable is provided for your information
in the following table.
Incorrectly setting the control transformer poses a risk to the trouble-free operating of the system. Checking
the setting of the control transformer is part of commissioning and part of regular inspection/maintenance
because the supply voltage can change.
The correct setting should be checked by measuring the control transformerʼs output voltage while the
system is running with a load.
Disconnect the system from the mains and wait minimum 10 minutes before touching
electrical components. The power capacitors need this time to discharge.
o o
F (40 C). Do not place the compressor in any place where the
o F (+2 o C). Heat the compressor room if necessary.
38
o F