Instructions / Assembly

iDEAL Paint Spray Booth (PSB-SDD26B-AK)
9
3.3.2 Exhaust Fan And Chambers
The booth exhaust chamber(s) is/are located as shown in the mechanical drawing package included with this manual.
Exhaust gases are pumped through the exhaust duct by an electrically powered fan. The fan is made of spark resistant
material and the motor is located out of the air stream. The exhaust chamber(s) operate(s) under a negative pressure to
induce the required airflow through the exhaust filters.
3.3.3 Product Doors
The product doors can be filtered or solid and may be either Tri-Fold or Bi-Fold Doors. Some industrial spray booths have
an open front in lieu of product doors.
3.3.4 Door Latch
Door latches secure doors in closed position and hold contact against rubber seal. Latches are pressure relief latches
that allow doors to open in case of explosion. This feature also allows for ease of booth operator egress from spray
booth by applying moderate pressure to the door from inside booth.
3.3.5 Door Limit Switch
The micro switch to indicate when a door is open on the booth. If a door is in the open position, micro switch contact is
opened which breaks the circuit for the paint air solenoid.
3.3.6 Air Make Up Unit (Optional)
The air make up unit (AMU) supplies filtered, heated atmospheric air. This unit may be heated by natural gas,
LP gas, steam coils or hot water coils. The temperature of the AMU discharge air is controlled by a thermostat.
The airflow capacity of the fan and motor are matched to the airflow capacity of the spray booth exhaust fans.
Some air makeup units also have the capability to provide a paint cure cycle. This cycle, employed after the
paintspraying operations are complete, typically involves supplying air that is heated to the paint area of the booth
todecrease paint cure times.
3.3.7 Intake Plenum / Canopy (Optional)
The box-like structure through which (heated) air is brought into the spray booth and typically used in conjunction with
the Air Make Up Unit. May be vertical and located at one end of the booth, or horizontal using part or all of the ceiling
inside the booth.
3.4 EXHAUST FILTER MANOMETER
Manometer is used to measure pressure drop across exhaust filters to indicate the condition of the filters.
3.5 AIR SOLENOID VALVE
The function of this valve is to interrupt supply of compressed air to painting equipment under certain conditions.
This is done to prevent painting from occurring when booth is not operating as designed or if any booth doors are open.
Air solenoid valve is electrically interlocked with booth intake and exhaust fans. If limit switches are purchased or
included, it is also interlocked with product doors and personnel doors. If a fan is not operating properly, or if a door is
open for longer than a few seconds, air solenoid valve will shut off flow of pressurized air to spray gun. Unit should be
installed downstream of any regulators and filters and upstream of painting equipment. It should be located near fitting
to which painting equipment connects in order to insure rapid loss of supply pressure.
3.6 CONTROL PANEL
Paint spray booth may be equipped with an optional electrical control panel. Please refer to electrical control drawings
for electrical schematic located inside the Control Panel. Also shown on this drawing is the wiring required for
installation. No spare parts are provided with Control Panel. The Control Panel and its associated wiring should be
installed by a licensed electrician. The cabinet that houses controls is NEMA 1 and is not suitable for installation in a
Class I, Division II area. Refer to Chapter 6 in the NFPA 33-2011 Standard and consult with the local authority having
jurisdiction for definition of this area for paint spray booth.