4.0 General Description
12 CC1132751C
4.3 Compressor Assembly (Fig.4.2)
The unit comprises of a 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 (D). The motor is bolted to the vertical column
supported by the base.
An electrically driven, impellor type, horizontally mounted fan (E)
is located below the combination oil cooler/air aftercooler matrix
(F). This draws cooling air through the air filter (G) and forces it
through the cooler matrix.
The electronic controller (H) with an LCD screen is mounted in
the starter (J). An emergency stop button (K) is located on the
front controller panel.
For RS models, the inverter drive (L) is mounted inside the
starter compartment, behind the starter panel door (J).
The compressor air intake is protected by an air intake filter (M),
and the oil system is filtered by an oil filter (N). An oil level sight
glass (O) is mounted adjacent to the oil filter.
The compressor is filled and topped up with oil via the oil filler
(P). The sight glass (O) will be full when oil overflows from the
level plug orifice (Q).
Oil is drained from the compressor and cooler by removing the
drain plug (R).
The compressor pressure gauge (S) is visible when the front
panel is open.
Oil separator (T) located on the compressor separator manifold
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 (U) to the after
cooler (F) 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.
4.4 Electronic Controller
Controllers have menu structures that contain all the parameters
and settings for safe operation of the compressor.
a)
[MAINTENANCE SCHED]
b)
[CONTROL MENU]
c)
[FAULT MEMORY]
d)
[TIMER CONTROL]
e)
[LIMIT VALUES]
f)
[OPTIONAL IN/OUTPUTS]
All menus are available to view, the [MAINTENANCE SCHED]
and [LIMIT VALUES] are reserved for fully trained personnel and
require a service or master code for entry.
Further explanation on menu structures is given in the following
sections, 5.0 Operating Instructions and 6.0 Adjustments.
Fig 4.2 Compressor Assembly
A
H
B
D
C
V
F
E
P O Q M
J K U
T
N
W
S
R
Y
G
L
Summary of Contents for HR04
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