Model FF-2500 Proportioning Unit
10
25942-1, Issue 4
15.
ISOCYANATE PRESSURE GAUGE-
Displays the pressure in the isocyanate
proportioning system.
16.
A-INLET SUPPLY VALVE
(R on other side)
17.
A-INLET FILTER SCREEN
(R on other side)
18.
A-PACKING NUT, LUBE CUP
(R on other side)
19.
PRESSURE LIMIT SWITCH-
Factory set to turn off the air drive system when
the proportioning pump exceeds the designed operating pressure limit. (A side
shown, R on other side)
20.
PRIMARY HEATER THERMOCOUPLE–
Senses the temperature of the
primary heater and inputs that information.
21.
THERMAL LIMIT SWITCH-
(under thermostat cover not shown)
Interrupts power to the primary heater when the surface temperature approaches the
designed operating temperature limit.
22.
POWER PACK (TRANSFORMER) CORD-
Provides AC power to the primary
side of the transformer.
23.
LOW VOLTAGE POWER PACK (TRANSFORMER)-
Provides selectable low
voltage outputs for heating various chemical hose lengths.
24.
TSU EXTENSION ADAPTER-
Carries the electrical signal from the TSU sensor
in the isocyanate hose to the hose temperature controller.
25.
AIR MOTOR REVERSING SWITCH-
Energizes and de-energizes the air valve
coils to reverse direction.
26.
HOSE HEAT POWER SET-
Adjusts the amount of amperage supplied to the hose
heating system.
27.
HOSE HEAT AMMETER-
Indicates the amount of amperage supplied to the hose
heating system.
28.
PRIMARY HEATER-
Heats the materials to the required dispensing temperature.
29.
A- (ISOCYANATE) PROPORTIONING PUMP-
Draws in and dispenses a fixed
volume of isocyanate for delivery to the gun or pour head.
30.
R- (RESIN) PROPORTIONING PUMP-
(Opposite side, not shown) Draws in and
dispenses a fixed volume of resin for delivery to the gun or pour head.
31.
POWER-LOCK™ HOSE HEAT CONNECTION
- Connects power from the
transformer to the heated hoses.
