Safety Devices; Cooling; Overheat Protection - Car-O-Liner CTR9 Instruction Manual

CTR9
2.4

Safety devices

2.4.1 Cooling

2.4.2 Overheat protection

49023, EN - rev. 4, 2020-01
If the C-Tong is used frequently, the welding cables and the power trans-
former become very hot. To prevent the welder from malfunctioning due to
overheating, it is continuously cooled during operation.
The fan starts when you press the C-Tong trigger button. The CTR9 is
equipped with water cooling of electrodes, yokes and transformer/rectifier.
The CTR9 has an overheat protection system which monitors the welder
when the C-Tong is used. The electrodes become hot if the C-Tong is used
frequently, which may affect the quality of the weld nuggets.
The overheat protection is in two levels. The power transformer is monitored
by a thermal sensor and a thermal breaker. The sensor and the breaker disa-
bles the welder in case of overheating. The welder remains disabled until the
temperature decreases to a safe level. Even though the welder is disabled in
case of overheating, the fan in the welder cabinet continues to operate. When
the welder has cooled, it is able to operate again.
IMPORTANT! Do not turn off the welder while cooling is activated!
IMPORTANT! If the thermal breaker has switched off the welder,
please contact Car-O-Liner authorized service personnel.
Car-O-Liner Group AB
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