Product Manual

Special Equipment Safety Features
9
High Pressure
Safety Device
(Rupture Disc)
WARNING: If the high-pressure safety device ever discharges water, turn the
engine off and do not use the machine. Call Product Support at 1-800-270-0810.
This unit is equipped with a high-pressure
safety feature. If the unloader malfunctions the
high-pressure safety device will open and relieve
excess system pressure.
Temperature
Sensor
(Thermistor)
This unit is equipped with a Temperature sensor
that measures water temperature and automatically
turns the burner off when the temperature setting is
reached or is at maximum preset limit. When the
water temperature drops, the burner automatically
reignites.
Thermal Relief
Valve
This unit is equipped with a thermal relief valve to protect the pump from
overheating. The pump continues to work in bypass mode when you are not
spraying. If high temperatures are developed during bypass mode, the thermal
relief valve will open and discharge hot water onto the ground, protecting the pump
from overheating. The thermal relief valve is located on the unloader bypass port.
Spray Gun
Safety Latch
The spray gun is equipped with a built-in trigger safety latch to guard against
accidental trigger actuation.
High Pressure
Limit Switch
This unit is equipped with a high-pressure
limit switch which acts as a primary safety
feature. If the system pressure exceeds the
set pressure limit this device will stop the
burner from firing.
00417
Safety Latch
Fig06830
HIGH PRESSURE LIMIT SWITCH
Fig157115-R
High Pressure Rupture Disc
TEMPERATURE SENSOR
Fig06831