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15
5. Operating the Unit
5.1 ON/OFF Power Switch and Circuit Breaker
This section covers the operating controls and indicators from the Loctite® Bulk Hot Melt System. Please read carefully
before attempting to operate system.
The On/Off power switch is located at the lower left side of the melt unit. It is a manual circuit breaker and also a
magnetic breaker, which opens the circuit when the current exceeds 20 amps (at 115VAC or 230VAC) or when
over-temperature conditions are sensed at the melt tank.
5.2 Front Panel Controls
Control and trouble shooting for the entire melt system is accomplished from the melt unit front panel. A brief
overview of these controls and indicators are shown on the following pages.
Fig. 8
Circuit Breaker
Range Indicator Digit
Standby Status LED
Pump Status LED
Pump Speed
Increment/Decrement
Actual Temp Display
Open Sensor Error
LED
Over Temp
Error LED
Pump Function
LED’s
Loop Output Indicators
Loop Select “On/Off”
Loop Select “DOWN”
“Set Temp”
Increment/Decrement
“Set” Temp Display
(or Standby Timer)
Standby
Toggle
Loop Select “UP”
Pump Speed
Indicato
r
Figure 9
Front Panel Controls
Pump Function
Toggle
Pump “ON/OFF”