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TOTALPAC2 Integrated Fire Protection System
Air Supply
FM-072G-0-06 G
increase air pressure or counter-clockwise to decrease
pressure. Tighten lock nut.
Note: Depending on site conditions, the internal filter of the
APMD may need maintenance on a regular basis. Refer
to Viking Data Sheet # 127a for more details.
Air option "D":
.7 To Apply Air Supply:
Turn on upstream air supply. Open Bypass valve (E8)
by placing handle in line with valve body.
.8 To Close Air Supply:
Close bypass valve (E8) (handle crossways to valve
body).
4. Maintenance and inspection:
Air Option "A":
.1 To close the Air Supply:
This procedure requires turning OFF the air compressor's
AC power by switching off the compressor isolating switch
(E15) located in the control section of the unit before
servicing. Note that the air compressor motor is equipped
with thermal protectors that reset automatically. These
thermal protectors will stop the motor in case it overheats
and can automatically start the motor when they reset.
.2 To remove and clean the check valve assembly (E11):
This procedure requires turning OFF the compressor's
AC power. Follow instructions "To close Air Supply"
above.
.a Carefully loosen the ¼" copper adapter, remove copper
tubing, and proceed to disassemble the check valve
assembly (E11).
.b Once disassembled, carefully clean the check valve
seat, or replace the check valve (part # 40CHSW0002)
altogether if worn out components are found.
.c Remove all brass connections, by unscrewing gently all
tubing adapters from the fittings, removing the
previously installed Teflon tape and apply new Teflon
tape on all threads. Re-install all components and
check for leaks after reconnecting power to the air
compressor.
.3 To clean or replace the compressor's air inlet filter:
This procedure requires turning OFF the compressor's AC
power. Follow instructions "To close Air Supply" above.
.a The motor compressor unit should be kept dirt-free. A
dirty filter restricts air flow, and causes the pump to run
hotter and results in longer operating cycles.
.b To inspect the inlet filter, turn the black plastic cover
counter-clockwise to remove it from its case (refer to
Figure 1). Remove old felt. Clean or replace with new
one (part # B 344 A). DO NOT CLEAN WITH
PETROLEUM-BASED PRODUCTS.
.c Re-install filter and cap. DO NOT OPERATE
COMPRESSOR WITHOUT A FILTER.
Note: Refer to the GAST Operation & Maintenance
Technical Manual provided with the
TOTALPAC2 unit for
more details.
Intake and exhaust filters are standard on most
compressors and will provide adequate filtration for most
applications. Check filters periodically and replace when
necessary. Initial inspection is suggested at 500 hours,
then the user should determine the frequency. Most
problems can be prevented by keeping filters and mufflers
clean. Dirty filters and mufflers decrease compressor
performance and can decrease compressor service life.
Should the compressor need rebuilding, field rebuilt kits
are available from Gast or its Authorized Service Facilities.
Refer to the compressor's Owner's Manual provided with
the T
OTALPAC2 unit. Maintain a clean air filter cartridge to
insure best flow and performance. The location and the
quality of the air being ingested indicates the frequency for
inspection and replacement. A dirty filter restricts air flow,
causes the pump to run hotter and results in longer
operating cycles.
.4 To drain the Air Supply Accumulator:
The amount of moisture pumped into the system and how
quickly it accumulates is proportional to the amount of
humidity in the air and how long the compressor is in
operation. This unit has been designed to operate
between 32 and 100
o
F.
At least once a year, open air option Drain Valve (E12)
until all condensate water is drained from the air receiver.
Close air option Drain Valve.
Warning ! The relief valve and outlet pipe of the air
compressor may become very hot during normal
operation. Do not touch the valve, compressor heads or
outlet piping until the compressor has been turned off
and allowed to cool.
A safety relief valve is provided on standard compressors
and is preset at the factory. Do not exceed or adjust safety
relief pressures other than those preset at the factory.
Warning ! Do not unscrew relief valve head entirely off
while the compressor is operating. Ejection of valve
parts could cause severe injury.
Air Options "B" or "C":
The Viking Model D-2 Air Pressure Maintenance Device
(APMD) (E5) is a pressure regulator that automatically
reduces the supply air pressure to a pre-set requirement
when connected to a constantly maintained air supply (plant
air, external air compressor or dry nitrogen tank). Refer to
Figure 2 for details.
Features:
- Replaceable air filter
- Outlet pressure range is 5 to 75 psi ( ± 2 psi) (34,47 to
517,11 kPa). Air pressure setting can be readjusted after
installation. See Paragraph 3.6, TO ADJUST SYSTEM
AIR PRESSURE.
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