RIX MB-115 User manual

RIX
COMPRESSORS
MICROBOOST
Owner’s Manual
MB-115
MB-230
PLICABILITY [CD]
February 19, 2004
AP

WARNING!!!
To prevent FIRE, SERIOUS INJURY and/or DEATH, it is the
User's responsibility to ensure that all parts used in the
compression assembly and gas plumbing of a RIX Oxygen
or Nitrox compressor are cleaned for oxygen service.
Cleaning should be in accordance with Compressed Gas
Association G-4.1. Factory oxygen cleaned parts are
denoted by an “X” prefix at the beginning of the part number.
it is the Buyers responsibility to maintain the cleanliness of
factory-cleaned parts throughout installation and start-up.
Furthermore, non-factory supplied parts will void all
warranties, as improper materials can cause oxygen fires
resulting in serious fires injury and/or death.
FOR ALL REPAIRS:
1) Refer to the applicable service manual for assembly
instructions
2) Refer to applicable compressor start-up instructions after
all repairs

INTRODUCTION
Congratulations on your purchase of the Rix Microboost
compressor. We anticipate that with proper care you will get
many years of satisfactory performance from this
compressor.
This manual is prepared to help you operate this equipment
safely and so that you get the most benefit from this
package. Please read it carefully.
This equipment is protected by warranty, a copy of which
should have been provided separately by your dealer. We
suggest that you read the warranty policy to fully understand
your coverage and your responsibilities of ownership.
Rix recommends that all servicing be done by trained and
qualified personnel. Rix recommends that you contact our
offices at 707-747-5900 for a list of qualified service centers.
Rix Industries
4900 industrial Way
Benicia, CA 94510
Phone [phone]
Fax [phone]
APPLICABILITY
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ABCD]
1

INTRODUCTION
Safety
This electromechanical equipment is designed to produce high pressure gas.
Operating personnel must follow these safety requirements at all times to
avoid injury to personnel or damage to property.
Keep away from live circuits. Do not attempt to replace components or make
adjustments unless the power to the compressor has been disconnected and
all pressure relieved.
Never operate with safety devices removed or disabled. This includes guards
for moving objects, protection from high temperature surfaces, pressure
relief valves, pressure switches, or covers over electrical components.
When compressing oxygen it is critical that surfaces in contact with oxygen
be kept clean and free from contamination, especially hydrocarbon
contamination or any flammable material. This compressor is shipped
oxygen clean and must be maintained that way to avoid the hazard of
explosion or fire.
Safety warnings are provided in a variety of forms, including:
Safety Labels-located on the equipment
Safety Messages- provided in this manual and proceeded by a safety alert
label, DANGER, WARNING, CAUTION, and NOTE.
You will likely be killed or seriously hurt if you don’t follow
instructions, and equipment damage is certain.
You may be killed or seriously hurt if you don’t follow
instructions, and equipment damage is certain.
CAUTION You can be hurt if you don’t follow instructions, and equipment
damage is likely.
NOTE! Highlights a certain operation, maintenance condition, or statement,
which is useful but not associated with a known hazard, as indicated by a
warning or caution.
2
REVISION A , 2/14/03
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CONTENTS
JIntroduction anne 1
Performance.........................,..................................…. 4
Safety......... sise 5
Controls and features........................................... nen 6
IA 8
Operation .ee 10
Servicing...................,............ iso 11
Troubleshooting............................................ 13
了 Parts. ee eeaeeereemen 14
Technical Data.......................................... ドー 20
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3

PERFORMANCE
The Microboost Compressor is designed to take oxygen at 0-25 psig and
compress it to 2200 psig. The discharge flow rate varies with inlet pressure
according to the chart below:
Microboost Flow Chart
18
16 -
14 -
12-
10-
Flow
(SCFH)
0 ' : 一 ; ，
10 15 20 25
Inlet Pressure (psig)
o a
Top line 60 Hz flow
Bottom line 50 Hz flow
Inlet Pressure Range 0-25 psig
Discharge Pressure Range 0-2200 psig
This compressor is designed to compress clean, dry, oxygen or nitrogen. For
other gasses contact Rix Industries.
4
REVISION
A,
2/12/03
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[ABCD]

SAFETY
DANGER
Keep away from live circuits. Do not attempt to replace components or make
adjustments unless the power to the compressor has been disconnected and
all pressure relieved.
DANGER
Never operate with safety devices removed, modified, or disabled. This
includes guards for moving objects, protection from high temperatures
surfaces, pressure relief valves, or covers over electrical components.
Surfaces on the motor and compressor can become hot and may cause pain
or discomfort when touched. Allow the equipment to cool before handling it.
ID R
To prevent FIRE, SERIOUS INJURY, and/or DEATH, it is the User’s
responsibility to ensure that all parts used in the compression assembly and
gas plumbing of this Rix Oxygen compressor and any other portions of the
gas stream that may be exposed during the installation of new or
replacement parts are cleaned for Oxygen Service prior to installation.
Any work to be done on the compressor where the gas stream may be
exposed must be done in accordance with safe Oxygen Equipment
handling procedures. |
No attempt should be made to work on the machine without full knowledge
of Oxygen handling equipment handling and the potential hazards of
contamination.
Factory oxygen cleaned parts are denoted by an “X” prefix at the beginning
of the part number. It is the User’s responsibility to maintain the cleanliness
of factory cleaned parts and any other existing portions of the gas stream that
may be exposed during the initial installation, start-up, or during installation
of replacement parts.
Rix Industries recommends the customer establish a procedure
for working with oxygen machinery. Refer to Compressed Gas
Association, Inc. publication number CGA G-4.1, Cleaning
Equipment for Oxygen Service.
REVISED 2/24/03 i 5
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CONTROLS AND FEATURES
THERMAL 一
OVERLOAD
PRESSURE SWITCH
(UNDERNEATH)
ON/OFF
ROCKER
SWITCH
START
PUSHBUTTON/LIGHT
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CONTROLS AND FEATURES
Power Entry Medule- The Microboost is connected to a source of
power using a power cord connected to the Power Entry Module
(conforming to IEC-320-C13). A power cord suitable for the intended
voltage, 115 VAC or 230 VAC, at 10 amps should be used to connect
the Microboost to the source of power.
Overload- The pushbutton reset overload is provided to protect the
equipment if the motor current draw exceeds 10 amps. A separate
automatic reset thermal switch is located inside the motor to protect the
motor from overheating.
Power On/Off Rocker Switch- The rocker switch is used to turn
power on to the Microboost control system. This switch is also used to
stop the unit manually when it is running.
Start Pushbutton- The momentary lighted pushbutton is provided for
starting the compressor. With the unit plugged into-a-seurce of electric
power and the On/Off rocker switch in the On position the Start
Pushbutton can be pressed to start the compressor motor. The
compressor runs until the pressure switch signals it to stop or until the
On/Off rocker switch is switched Off.
Pressure Switch- The pressure switch is provided to automatically stop
the compressor when the set pressure is reached. This-is-usuatty-factory
set at 2200 psig. The switch is located inside the Mitrotoost tase and
is accessible for adjusting through a rectangular opening provided in
the underside cover.
Relief Valves- Relief valves are provided for all compression stages.
The first stage (set at 359-psig) and second stage-(set-at-1200-psig)
relief valves are located on the outside of the compressor as shown. The
third stage relief valve (set at 2400 psig) is located—-inside—the
compressor base. These prevent pressures from rising to levels that:
might cause damage.
REVISION
B,
2/12/03
7
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[ABCD]

INSTALLATION
13.2
DISCHARGE CONNECTION
(1/4 NPT)
POWER ENTRY MODULE,
< ‚/АМЕЕТ CONNECTION
(ANP)
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INSTALLATION
The Microboost is a free standing package weighing 61 lbs and is meant to
be located in open air on a table, shelf, or on the floor. It may also be
mounted inside a frame or cabinet as long as sufficient air circulation is
provided to prevent overheating. Locate the compressor in an area with good
ventilation. An ambient temperature of 90° F or less is preferable.
Circulating air across the compressor with an external fan will make it
operate better and last longer.
Rix recommends installing a flow check valve after the Microboost
discharge to prevent reverse flow when the compressor is off.
Pressure gauges should be installed at the suction and discharge to help in
monitoring performance and for troubleshooting.
Plug into a source of power that is protected for 15 amps (115 V) or 10 amps
(230 V).
Connect the compressor inlet to a source of clean, dry gas regulated not to
exceed 25 psig. Inlet filtration to 2 micron max particle size is
recommended. Particle contamination can cause failure.
Connect the compressor discharge to a high pressure cylinder or manifold
designed to handle pressures at 2300 psig. A discharge filter of at least 5
micron is recommended to remove seal wear (Teflon) particles. The
customer is responsible for designing and adequately protecting the
plumbing and equipment he attaches to the Microboost.
Exposed surfaces of the operating motor and compressor can reach 180° F
and may cause pain or discomfort if touched. Locate the unit in a safe
location where it is protected from human contact.
REVISION
B,
2/12/03
9
APPLICABILITY
[ABCD]

OPERATION
Check that power is connected to the Microboost.
Check that the compressor suction is connected to a source of clean,
dry oxygen or nitrogen gas.
Check that the compressor discharge is connected to a fill system
suitable for 2300 psig and that there are no restrictions in the line.
Check that the compressor discharge is relieved of any pressure build-
up.
Caution
Do not attempt to start the compressor against
discharge pressure. Vent all gas pressure at the compressor
discharge prior to starting. If the compressor stalls it is
probably because there is residual pressure in the system.
Push the Power On rocker switch to the ON position.
Push the Start pushbutton, the compressor should come on. Verify that
the compressor comes on and the Start pushbutton light is illuminated.
Periodically monitor the compressor for proper operation. Observe that
there are no leaks or unusual noises. Make sure there is adequate air
circulation around the compressor and that the location temperature
where the compressor is operating does not exceed 110° F.
Compressor Shutdown
Press the On/Off rocker switch to the OFF position.
10
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SERVICING
Oxygen compression equipment has very special requirements because
of the hazards of explosion and fire associated with compressed
oxygen. Rix recommends that only trained and qualified personnel
work on this equipment. Rix recommends returning the compressor to
Rix or to an approved Rix service center when repairs are to be made.
Simple operations such as repairing leaks or replacing valves or relief
valves may be done locally by competent mechanics trained in working
on oxygen equipment. Care must be taken when handling these parts so
that surfaces in contact with oxygen do not become contaminated.
Changing Suction and Discharge Valves (first and second stages)
The compression valves are designed into the tube fittings for the first
and second stages suction and discharge. These valves are not designed
to be serviceable except by the factory. To replace a valve, remove the
fitting nut and tube line and then remove the valve. When reinstalling a
valve make sure that the O-ring is in place and is lightly lubricated with
oxygen compatible grease such as KrytoxBo.
Valves are marked with an ‘S’ for suction and a ‘D’ for discharge.
Make sure the proper valve is used when reinstalling. Do not
interchange suction and discharge valves. Reinstall the tube line and
tighten the nut as necessary to eliminate leakage. Use a soap type leak
test fluid to check for leaks while the compressor is running. Tighten
just enough to eliminate all leakage.
Caution
Do not over-tighten as this may damage the sealing
surfaces making it more difficult to attain a leak-free joint.
11
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SERVICING
Changing Suction Valve (third stage)
This suction valve is similar to the first and second stage suction valve
but is marked “3S”. It should not be interchanged with any other stage
valve, but otherwise may be serviced in the same way as the suction
valves for the first and second stages.
Changing Discharge Valve (third stage)
The discharge valve is located under the hex plug on top of the third
stage head. It is critically important to keep the internal parts from
becoming contaminated and this valve should be serviced by personnel
trained in handling oxygen systems. Lightly lubricate the small O-ring
on the tip of the poppet with an oxygen compatible lubricant such as
Krytoxe.
Changing Relief Valves
The relief valves are not meant to be serviced except by the factory. If
it becomes necessary they may be replaced with new valves using care
so that the surfaces in contact with oxygen do not become
contaminated. The first and second stage relief valves are located on
the side of the compressor. The third stage or final relief valve is
located inside the base of the compressor.
Setting The Pressure Switch
A pressure switch is located inside the base of the compressor and is
factory set at 2200 psig. It is important that the set point never exceeds
this pressure. If it becomes necessary to reset this switch it is accessible
through a square shaped cutout in the plate covering the underside of
the
base. Push the sleeve on the body of the pressure switch back to
expose the pressure adjustment mechanism. Insert a flat bladed tool
such as a screwdriver in the slot and rotate the adjustment mechanism
clockwise to increase pressure and counterclockwise to decrease it.
12
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TROUBLESHOOTING
Circuit breaker in Microboost base trips
Likely causes:
1. A short circuit in the motor or electrical wiring.
2. A bearing is failing in the drive system.
3. A problem internal to the compressor or gearbox has increased
the motor load.
Thermal switch in motor trips (note: this will reset automatically)
Likely causes:
1. Inadequate air circulation where the compressor is operating.
2. Motor current draw is high (see overload causes listed above).
Relief valves leaks or relieves
Likely causes:
1. A valve problem (either suction or discharge) in the next higher
stage of compression.
2. A faulty relief valve (damaged seat or maladjustment).
Low flow
Likely causes:
1. A leak in a tube or pipe fitting on the compressor.
2. A leaking relief valve.
3. Worn piston seals in the compressor.
Compressor stalls
Likely causes:
1. Mechanical failure such as a bearing seizure.
Compressor will not start
Likely causes:
1. The compressor pressure is above the pressure switch setting.
2. The motor has overheated and tripped the thermal switch.
3. The circuit breaker tripped.
13
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PARTS BREAKDOWN
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14

PARTS BREAKDOWN
Compressor Assembly Major Components
MICROBOOST Model MB-D-115
115 V, 50/60 Hz
ITEM QTY PART NUMBER DESCRIPTION
1 1 107-7309 MOTOR/GEARBOX
2 1 G100-MB-B COMPRESSOR (see separate parts list, page 17)
3 1 G200-MB-115-B BASE (see separate parts list, page 19)
4 1 138-5777 POWER CORD
MICROBOOST Model MB-D-230
230 V, 50/60 Hz
ТЕМ QTY PART NUMBER DESCRIPTION
1 1 107-7309 MOTOR/GEARBOX
2 1 G100-MB-B COMPRESSOR (see separate parts list, page 17)
3 1 G200-MB-230-B BASE (see separate parts list, page 19)
4 1 МА POWER CORD (provided by customer)
15
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PARTS BREAKDOWN
16
X
NX
q
X
X
X
NOON
SON
ON
NOON
X
Sc
\
X
|
APPLICABILITY [BCD]
X
a o
ペー
ジ
\
\
VE
A
な
ο 一
À

PARTS BREAKDOWN
Item Part Number
On
AaAhwW
ND
=
NON
N
dad
SÅ
A
A
A
ーー
D
> © ©
©
JO
0
B w D = © ©
32-A9020
6-A8781
27-A8784
181-5704
5-C2974
32-6040
38-A8941
91-A9262
XAS15-A8450
XA455-B7146
X123-903-5
XA515-A8448
XAD15-A8451
XA54-A8595
X123-120-5
X63-B7013
X54P-4P50NSS
X123-904-5
32-1175
XAD15-A8576
XAS15-A8594
X2-B7112
2/19/04
Qty Description
A
ода
Я
a
Ma-
Ti
n
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Bolt, Soc Hd, 1/4-28, 1 3/8L
Front Plate
Shaft
Needle Bearing (in item 44)
Crankshaft
Bolt, Hex Hd
Plate, Cover
Key
Suction Valve, 1%, 2%
Tube Line assembly, 1*
O-ring
Relief Valve, 1° Stage
Discharge Valve, 1%, 2"
Fitting Assy, Inlet
O-ring, 3% Stg Cylinder
Cylinder Liner, 3" Stg
Plug, 7/16 ST THD
O-ring,
Bolt, Hex Hd
Discharge Valve, gi Stage
Suction Valve, 3" Stage
Head, 3" Stage
Item Part Number
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
XA455-B8447
XA125-A9503
X1-C2750-1
X123-146-5
X32-1151
X20-A8486
X8-C2751
XA125-A9501
X123-038-5
X31-1003
XA125-A9502
X123-035-5
53-70
20-4862
XA515-A8449
62-A8993
A100-D3316
58-A8484
32-4038
6-A8780
52-A8779
A7-A9290
Qty
4
4
1
1
2
2
1
4
1
1
1
1
1
1
1
1
1
REF
4
1
1
1
Description
Tube Line Assy, 2 Stg
Seal, 3% Stage
Cylinder Block, 1º Stage
O-ring
Bolt, Soc Hd, 1/4-20, 2L
Washer, Copper
Piston, Compression
Seal, 1º Stage
O-ring, 1° Stage
Snap Ring
Seal 2™ Stage
O-ring, 2" Stage
Nut, Nylok, 3/4-16
Washer, AN, 3/4, Steel
Relief Valve, 2"! Stage
Label, Nameplate
Crankcase
Guide (part of item 39)
Bolt, Soc Hd, 5/16-18, 3/4L
Back Plate
Yoke
Connecting Rod Assy
17

PARTS BREAKDOWN
18
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