FRICK
®
QUANTUM
™
LX/HD RETROFIT
INSTALLATION INSTRUCTIONS
090.040-I (MAR 2012)
Page 4
21.
Refer to the panel wiring diagrams in the Maintenance
manual (090.020 M or 090.040 M) and connect the red,
black, and white wire of the twisted-three wire to the slide
valve potentiometer. Cut off the shield wire at the slide valve
indicator end and place tape or heat shrink tubing around
the exposed shield so that it will not come in contact with
the compressor or slide valve cover.
22.
Connect the shield wire of the twisted-three wire to the
control panel ground block in the control panel.
23.
Connect the red, black, and white twisted-three wires
to the microprocessor board, as shown on the panel wiring
diagrams in manual 090.020-M or 090.040-M.
24.
If the compressor is an RWB II model, locate the slide
stop potentiometer. Verify that the existing wiring between
the slide stop potentiometer and control panel is wired with
Belden 8770 or equivalent.
25.
Refer to the panel wiring diagrams in the manual 090.020-
M or 090.040-M and verify that the red, black, and white
wires of the twisted-three wire to the slide stop potenti-
ometer are wired properly. Verify that the shield wire at the
slide stop end is cut off and taped to prevent contact with
the compressor. Leave slide stop cover off until the calibra-
tion procedure is complete.
26.
Connect the red, black, and white twisted-three wires
to the microprocessor board, as shown on the panel wiring
diagrams in the manual 090.020-M or 090.040 M.
27.
Connect the shield wire of the twisted-three wire to the
control panel ground block in the control panel.
28.
Before starting the AC control wiring, the following items
should be checked in the compressor starter. Refer to the
compressor motor starter diagrams.
A.
The compressor requires a minimum of 2 KVA transformer
for 120 VAC control and heater power.
B.
The compressor starter must have a ground wire pulled
from the three-phase source. The ground must be connected
to the starter backplate and the neutral terminal (2) on the
secondary side of the control transformer.
C.
Verify that the current transformer (CT) is placed as
shown on the motor starter diagram in the IOM and is sized
according to the current transformer (CT) selection chart.
D.
Verify that auxiliary contacts are provided on the compres-
sor and oil pump contactor (if oil pump is required).
E.
Verify that the compressor motor overloads are sized
properly.
F.
If the compressor and oil pump starters do not have inter-
posing relays already provided, the relays must be mounted
and wired as shown on the drawings.
G.
If converting from an RWB II to a
QUANTUM
™
LX/HD
, con-
nect the motor amp signal from the current transformer in
the motor starter (wires 3 and 4) directly to the analog board
in the
QUANTUM
™
LX/HD
panel. On the RWB II, the number
3 and 4 wires were connected to a current transducer in the
junction box. The best way to get the CT from the
junction box to the
QUANTUM
™
LX/HD
enclosure is to use
the number 12 gauge blue and black wires which were used
for common and +5VDC.
The most common electronic control panel problems are
due to undersized AC power wiring, poor grounds, and
control power supplied from lighting panels that have
other devices tied to them that generate large amounts
of AC line noise. Please follow these directions carefully.
(For additional information on "Installation of Electronic
Equipment in an Industrial Environment", see page 7)
Metal oxide varistors (MOV or surge suppressor) are rec-
ommended for the load/unload solenoid coils, compressor
starter coil, oil pump starter coil (if applicable) and liquid
injection solenoid coil (if applicable). The MOVs should be
placed directly at the coils of these devices. Placement of
the MOVs at the control panel terminal strip negates the
surge suppression effect. For 100 VAC to 125 VAC operation,
a General Electric part number V130LA10A is recommended.
For 185 VAC to 254 VAC operation, a General Electric part
number V275LA20A is recommended.
29.
Using 12 AWG or larger wire, connect the control
transformer in the compressor starter panel to the proper
terminals in the
QUANTUM
™
LX/HD
control panel, as shown
in the IOM on the compressor motor starter diagrams and
the panel wiring diagrams. These wires are: black (1), white
(2), and green (GND). (Copper ground only. Conduit ground
is not acceptable.)
The main power wiring to the
QUANTUM
™
LX/HD
panel (line
and neutral) must be 12 AWG or larger. A separate ground
wire is also required for each
QUANTUM
™
LX/HD
panel and
must also be at least a number 12 copper wire.
30.
Connect the remaining control wires between the starter
and the control panel, as shown in the IOM on the compres-
sor motor starter diagrams and the panel wiring diagrams.
These control wires are typically:
A.
Compressor start
(18)
B.
Compressor auxiliary
(20)
C.
Current transformer
(3 and 4)
D.
Oil pump start (if required)
(8)
E.
Oil pump auxiliary (if required)
(19)
31.
Connect the remaining package control wires, including
options, to the control panel, as shown on the panel wiring
diagrams in the manual 090.020-M or 090-040-O.
32.
Before applying power to the
QUANTUM
™
LX/HD
control
panel, make the following checks:
A.
Check for loose connections or damage to the circuit
boards or cables.
B.
Check for wire clippings or metal drill filings on the
circuit board or in the panel. Clean
QUANTUM
™
LX/HD
control panel thoroughly before applying the control
power.
33.
Make sure that the circuit breakers (1CB and 2CB) in the
QUANTUM
™
LX/HD
control panel are in the "OFF" position.
Engage the electrical disconnect at the compressor starter.
34.
Using a DIGITAL VOLTMETER, verify the AC line voltage
in the
QUANTUM
™
LX/HD
control panel. The AC line voltage
should be between 100 VAC and 125 VAC or 185 VAC to
254 VAC.
35.
Check for AC volts (in millivolts) between AC neutral (2)
and AC ground (GND). If the millivolt reading is greater than
500 millivolts, pull the electrical disconnect at the motor
starter and reverify ground and neutral circuits.
36.
Turn circuit breakers 1CB and 2CB to the "ON" position.
