Gast R7100R-50 - Manual (Page 2)

SAFETY
This is the safety alert symbol:
ƽ. When you see this sym-
bol, be aware that personal injury or property damage is
possible. The hazard is explained in the text following the
symbol.
The following is an explanation of the three different
types of hazards:
ƽ
DANGER Severe personal injury or death
will occur if hazard is ignored.
ƽ
WARNING Severe personal injury or death
can occur if hazard is ignored.
ƽ
CAUTION Minor injury or property damage
can occur if hazard is ignored.
Read the information carefully before operating.
_____________________________________________
2
GENERAL INFORMATION
This instruction applies to the following models ONLY:
R3105N-50, R4110N-50, R4310P-50, R4P115N-50,
R5125Q-50, R5325R-50, R6130Q-50, R6P155Q-50,
R6340R-50, R6P355R-50 and R7100R-50. These blowers
are intended for use in Soil Vapor Extraction Systems. The
blowers are sealed at the factory for very low leakage. They
are powered with a U.L. listed electric motor Class 1 Div. 1
Group D for Hazardous Duty locations. Ambient temperature
for normal full load operation should not exced 40
C (105 0 F).
For higher ambient operation, contact the factory.
Gast Manufacturing Incorporated may offer general
application guidance: however, suitability of the particular
blower and/or accessories is ultimately the responsibility of
the user, not the manufacturer of the blower.
INSTALLATION
ƽ
DANGER Models R5325R-50, R6130Q-50,
R6340R-50, R5125Q-50, R6P155Q-50,
R6P355R-50 and R7100R-50 use Pilot
Duty Thermal Overload Protection. Con-
necting this protection to the proper
control circuitry is mandated by UL674
and NEC501. Failure to do so could/may
result in an EXPLOSION. Se pages 3
and 4 for recommended wiring schematic
for these models.
ƽ
WARNING Electric shock can result from bad
wiring. A qualified person must install all
wiring, conforming to all required safety
codes. Grounding is necessary.
ƽ
WARNING This blower is intended for use on soil
vapor extraction equipment. Any other
use must be approved in writing by Gast
Manufacturing, Inc.
Install this blower in any mounting position. Do no
block the flow of cooling air over the blower and motor.
PLUMBING
Use the threaded pipe ports for connection only. They will
not support the plumbing. Be sure to use the same or larger
size pipe to prevent air flow restriction and overheating of
the blower. When installing fittings, be sure to use pipe
thread sealant. This protects the threads in the blower
housing and prevents leakage. Dirt and chips are often
found in new plumbing. Do not allow them to enter the
blower.
NOISE
Mount the unit on a solid surface that will not increase the
sound. This will reduce noise and vibration. We suggest
the use of shock mounts or vibration isolation material for
mounting.
ROTATION
The Gast Regenair Blower should only rotate clockwise as
viewed from the electric motor side. The casting has an
arrow showing the correct direction. Confirm the proper
rotation by checking air flow at the IN and OUT ports. If
needed reverse rotation of three phase motors by changing
the position of any two of the power line wires.
OPERATION
ƽ
WARNING Solid or liquid material exiting the
blower or piping can cause eye dam-
age or skin cuts. Keep away from air
stream.
ƽ
WARNING Gast Manufacturing, Incorporated will
not knowingly specify, design or build
any blower for installation in a hazard-
ous, combustible or explosive location
without a motor conforming to the
proper NEMA or U.L. standards.
Blowers with standard TEFC motors should never be
utilized for soil vapor extraction applications or where
local, state and / or Federal codes specify the use of
explosion-proof motors (as defined by the National
Electric Code, Articles 100,500 c1990).
ƽ
CAUTION Attach blower to solid surface before
starting to prevent injury or damage
from unit movement.
Air containing solid particles or liquid must pass
through a filter before entering the blower. Blowers
must have filters, other accessories and all piping
attached before starting. Any foreign material passing
through the blower may cause internal damage to the
blower.