LL60 pages

Form LL6

Spencer UL Listed
(GL Series) Hermetic
Natural Gas Boosters
®

General Instructions
Please Do Not Destroy
Post in a conspicuous place and follow instructions
carefully. Additional copies furnished upon request.
Caution: Do not operate machine in "Surge" or in
unstable ow range for extended periods.
Spencer service
Spencer service begins upon receipt of your request for
equipment purchase. Our engineers welcome the opportunity
to discuss your installation problems and will assist in determining specication requirements if so desired. To serve you
promptly, we maintain an inventory of electric motors and
machine parts for the various types of equipment. Also, by
combining under one roof, the constantly supervised manufacturing, assembly, and test procedures, Spencer can
assure you of a unit capable of optimum performance under
the most severe service conditions. All Spencer gas boosters
are factory tested for load capacities, noise, vibration and
leakage. This guarantees long, trouble-free operation.
Warranty
We warrant that this product will be free from defects in
material and workmanship for a period of 18 months from
date of shipment or 12 months from date of start-up,
whichever comes first. Within the warranty period, Spencer
shall repair or replace such products that are determined
by us to be defective. This warranty will not apply to any
product which has been subjected to misuse, negligence,
or accident or misapplied or modified or repaired by unauthorized persons or improperly installed.
The guarantee of the motor and control manufacturers will
govern the extent of our guarantee on such equipment.
Warranty work on motors and controls must be authorized
by Spencer and must be performed in an authorized shop
as designated by the motor and control manufacturers.
Handling
This machine has been carefully balanced and tested at
our factory. It is essential, therefore, that it be handled with
care during installation in order that you may be assured
satisfactory performance.
If the machine is to be stored for some time before being
permanently installed, it must be carefully protected from
dampness and dirt.
Location
Install the machine in a cool, dry place free from dirt and
dust. After placing the machine in its operating position, be
sure that the blower and motor are readily accessible for
servicing by allowing several feet of clear space around the
machine. Inaccessibility can prove costly in both time and
labor.
Caution: Do not locate unit in excessively hot area
(above 100°F).

Foundation
No special foundation is necessary for the equipment. A level
concrete oor or block is recommended, although any other
substantial oor will prove satisfactory. The machine and its
base should be placed on the insulation pads normally
furnished with it.
Caution: Gas Boosters should not be bolted down or
anchored in any way.
Piping
Spencer GL Gas Boosters are UL Listed as being suitable for
installation in accordance with the provisions of the National
Electric Code, NFPA No. 70, and the National Fuel Gas Code,
NFPA No. 54, for natural gas only.
All piping should be of ample size to minimize frictional loss. It
is absolutely essential that all joints be gastight and that there
be no leaks in the system. Piping should be properly supported
without producing any stress and strain on the machine casing.
It is further recommended that a suitable exible connection be
used to connect it to the piping.
Caution: If the piping system is to be leak-tested using
high pressure air, be sure to either bypass or disconnect
the gas booster. High pressure air will seriously damage
the gas booster.
Electrical
Be sure that the motor furnished with this machine is wound for
the same type of current available at the installation. Follow the
wiring instructions furnished. Wire and fuses should comply
with NEC and/or local codes.
It is important that proper equipment be used. All A.C. machines
should be equipped with a magnetic contactor or a manual or
automatic compensator depending on the machine size and the
installation regulations of the local power company. The starters
should have thermal overload protection as well as true lowvoltage protection.
Ball Bearings
The motor ball bearings in this machine have been designed
specically for the function they must perform. Impeller loads,
both radial and thrust, are carried by the motor bearings.
Motors
GL Series Gas Boosters incorporate an explosion proof motor
suitable for Class 1, Group D environments. The motors are
also equipped with thermal overload protection (thermostats).
Lubrication
The motor bearings are factory lubricated. The machine must
be disassembled if both front and back motor bearings are to
be replaced. Consult factory for repair procedure.