Graco Aerobotix RC50, Инструкция по эксплуатации

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Operation
313813A 35
Temperature Control
PA Heater
PB Heat Exchanger
PC Supplied Water Inlet PD Supplied Water Outlet
PE Thermocouple
Heat Exchanger
The heat exchanger (PB) cools the chemical in the
pump inlet line prior to reaching the pump. The HMI
sends a temperature setpoint signal to the tempered
water units using the thermocouples (PE) as feedback.
The tempered water units open and close a water inlet
valve as necessary to maintain the desired fluid temper-
atures.
Tempered Water Unit
The stand-alone tempered water units improve the effi-
ciency of the heat exchanger. The function of the tem-
pered water units are to cool or heat the inlet water
flowing to the heat exchanger to increase the tempera-
ture control on the material.
Heater
The heater (PA) heats the material to the desired tem-
perature before moving to the dispense gun.
Over-Temperature Switches
For operation information, see Temperature Control
section on page 45. For factory settings, see the table at
the beginning of the
Settings section on page 45.
F
IG
. 19
PA
PA
PD
PC
ti14337a1
PB
PE