KAESER EPC Series User Manual

Model Start mode Starts [1/h] Z
max
[Ω]
EPC 550–2 Star-delta 6 —
12 —
18 —
EPC 750–2 Direct online 6 —
12 —
18 —
EPC 750–2 Star-delta 6 0.258
12 0.187
18 0.154
EPC 1000–2 Direct online 6 —
12 —
18 —
EPC 1000–2 Star-delta 6 0.174
12 0.126
18 0.104
Tab. 20 Network impedance
2.14 Machine duty cycle
Calculating the cycling period:
Cycling time = time under load + time at standstill
Calculating the duty cycle:
Duty cycle [%] =
time under load
time under load + standstill time
x 100
Example
12 minutes
20 minutes
x 100 % = 60 %
The following values are valid for:
■ 20 °C ambient temperature
■ 30 % relative humidity
■ 1013 mbar air pressure
Duty cycle [%] Cycle time [min]
EPC 230–2–100 ≤ 70 —
EPC 230–2–250 ≤ 70 —
EPC 420–2–250 ≤ 70 —
EPC 550–2–250 ≤ 70 —
EPC 550–2–350 ≤ 70 —
EPC 750–2–500 ≤ 70 4–30
2 Technical Specification
2.14 Machine duty cycle
10
Service Manual 2-stage piston compressor
EPC No.: 9_9431_02 E

KAESER EPC Series Specifications

General

Type	Rotary Screw Compressor
Drive Type	Direct Drive
Cooling System	Air-cooled
Control System	Sigma Control 2.0
Weight	Varies depending on model
Noise Level	62 - 75 dB(A) (depending on model)