Climate Control Series
Quincy Compressor
2022209100, August 2018
20
The compressed air supply line from the air receiver of a stationary unit
must be equipped with a pressure and heat rated flexible connection.
As with any piping, all parts of the discharge piping should fit so as not to
create any stress between the piping and components
Never join pipes or fittings with lead-tin soldering or use plastic
(PVC) pipe. Welded or threaded steel pipes and cast iron fittings,
designed for the pres sures and temperatures, are recommended.
Pressure Vessels
Air receiver tanks and other pressure containing vessels such as
(but not limited
to)
pulsation bottles, heat exchangers, moisture separators and traps, must be
in accordance with ASME Boiler and Pressure Vessel Code Section VIII and
ANSI B19.3 safety stan dards. They must be equipped with a properly sized
pressure relief valve, pressure gauge, receiver tank drain, & manual shutoff
valve (refer to
Fig. 3-10, Typical Drop Leg & Component Location
).
Follow ASME code for air receiver tanks and other pressure con-
taining vessels. Pressure vessels may not be modified, welded,
repaired, reworked or subjected to operating conditions outside
the nameplate ratings. Such actions will negate code status, affect
insurance status and may cause property damage, severe injury or
even death. Always replace worn, cracked or damaged receivers.
A drain valve must be located in the bottom of the air receiver to allow for
moisture drainage. An auto matic drain valve is recommended. Extend drain
valve piping away from the unit and any personnel in the immediate area to
provide safe and convenient removal of excess moisture.
If the air receiver is going to be subject to temperatures of 32°F or below,
provisions must be made to guard against freezing of the pressure relief valves,
check valves, pressure gauge, and moisture drain.
Condensation
Rust can form inside the crankcase and on internal com ponents as a result of
condensation. A compressor must operate long enough during each run cycle
to reach full operating temperature in order to reduce the risk of condensation.
Lubricant that appears milky may have mixed with condensate.
Failure to
replace contaminated lubricant will result in damage to the compres-
sor and may void warranty.
Condensation can also form in the air tank of your
com pressor. When this happens, a mixture of air and
mois ture will be expelled through the service valve
and into what ever is connected to the valve (e.g. air
hoses, metal air lines, pneumatic tools, spray guns). An
in-line filter or dryer, available from your local Quincy
distributor, may be re quired to eliminate the moisture.
Condensation in the air tank can be kept to a mini-
mum by draining the tank on a daily basis. This also
reduces the risk of rust developing and weak ening the
tank.
WARNING !
WARNING !
Fig. 3-11 Internal Drain Tube
30 PSIG
