General Description 6
16
ST16135-00E
Fig. 6.2 - Compressor Assembly
6.3
Compressor Assembly (Fig. 6.2)
The unit comprises of a vertical single stage, oil flooded, rotary,
sliding vane compressor driven by an electric motor mounted to a
base. It is supplied with control panel, starter, and oil cooler/air
aftercooler with all accessories piped in and electrically
connected.
The intake cover (A) is assembled directly to the compressor (B)
which is fitted to the motor flange (C). A flexible coupling drives
the compressor rotor from the motor drive shaft, enclosed inside
the bell housing (U). The motor is bolted to the vertical column
supported by the base.
An electrically driven, impellor type, horizontally mounted fan (D)
is located below the combination oil cooler/air aftercooler matrix
(E). This draws cooling air through the air filter (F) and forces it
through the cooler matrix.
The compressor electronic controller (G) with an LCD screen is
mounted in the starter (J). An emergency stop button (X) is
located on the front controller panel.
For RS models, the inverter drive (H) is mounted inside the starter
compartment, behind the starter panel door (J).
The compressor air intake is protected by an air intake filter (K),
and the oil system is filtered by an oil filter (L). An oil level sight
glass (M) is mounted adjacent to the oil filter.
The compressor is filled and topped up with oil via the oil filler (N).
The sight glass (M) will be full when oil overflows from the level
plug orifice (O).
Oil is drained from the compressor and cooler by removing the
drain plug (P) and opening the drain tap (Q).
The compressor pressure gauge (R) is visible when the top panel
is removed.
Oil separators (S) located on the compressor top cover ensure air
delivered through the minimum pressure valve has a cleanliness
of less than 3 ppm (parts per million by weight). Air is delivered
through the air delivery pipe (T) to the after cooler (E) before
discharge from the unit.
The oil supply to the cooler is through oil feed pipe (V) with the
cool oil return through oil return pipe (W) For a quick warm up, a
thermal by-pass valve (Y) allows the oil supply to by-pass the
cooler on initial start up.
6.4
Electronic Controller
Controllers have menu structures that contain all the parameters
and settings for safe operation of the compressor.
P00
User Menu (View Only)
P10
Customer Menu
P20
Oil Change Menu
P21
Service Menu
P22
Diagnostic Menu
P30
Drive Menu (RS Only)
P31
Factory Menu
For safety reasons menu’s P20 onwards are reserved for trained
personnel and require access codes for entry. The following
sections describe in detail the P00 and P10 menu’s only.
