Chromalox PE419-5 specifications Operation, Maintenance, 240V, 3øY

	WIRING
CONTACTOR	CONTACTOR	CONTACTOR
	L1	L1
L1
	L2	L2
L2	L3	L3
L3
120V, 240V	120V, 240V	120V, 240V
THERMOSTAT	THERMOSTAT	THERMOSTAT
Figure 7 – GCH6	Figure 8 – GCHIS	Figure 9 – GCHIS
480V, 3ø	240V, 3øY	40V, 3øY
Instructions for converting	240V LINE	480V LINE
GCH6, 240V, 3ø to GCH6, 480V, 3ø

1.	Remove all jumper straps and separate	166-014828-024
2.	according to different lengths.	166-075229-018		166-075229-014
	Discard jumper straps 166-075229-018
3.	(1-1/4” long).
	Reassemble jumper straps 166-014828-
	024 (2-1/2” long) and 166-075229-014			166-014828-024
4.	(1-1/2” long) as in Figure B.	FIGURE A	166-075229-014	FIGURE B
	Replace washers and nuts.
5.	Check circuits.	240V, 3ø (Parallel)	Connected	480V, 3ø (Series) Connected

NOTE: Broken Lines Indicate “Customer-furnished”. However, thermostat could have been furnished by chromalox if so specified on order.

OPERATION

1.Do not heat materials that are corrosive to the heating element sheath or chamber.

2.Terminal ends of heater must be protected from drippings, con- densation, spray or direct spill-over of material whose presence at the terminals may damage heater electrical insulation. Liquid-tight terminal enclosures are available to protect heater. Consult your local Chromalox Sales office.

3.If foreign material is carried by the gaseous flow, install suitable filters in the inlet pipe line to the heater.

4.Do not allow heater to operate when steam, air or gas flow is inter- rupted.

FIRE/EXPLOSION HAZARD. Safe operating condi- tions depend on operating pressure, mass velocity of gas and discharge temperature of the gas. At a

given discharge gas temperature, heater element sheath temperature and pipe body temperature tend to increase as gas flow (mass velocity) decreases. The standard GCH-6 has a 750˚F limita- tion on the carbon steel body and a 1500˚F limit on the INCOLOY sheath elements. Check factory if any doubt exists as to temperatures that will be encountered in your specific application. At pipe body temperatures above 750˚F, stainless steel pipe body is required (model GCHIS).

FIRE/EXPLOSION HAZARD. Do not exceed the Pressure-Temperature rating of the flange as list- ed in ANSI B16.5.

MAINTENANCE

ELECTRIC SHOCK HAZARD. Disconnect all power before installing or servicing heater. Failure to do so could result in personal injury or property damage. Heater must be installed and serviced by a qualified person in accordance with the National Electrical Code, NFPA 70.

1.Remove heating element assembly periodically to check heater sheath for corrosion or excessive oxidation. Correct operating con- ditions to minimize sheath deterioration.

2.Periodically check temperature control and limit control operation to insure accurate and safe process operation.

3.Check all electrical connections periodically and retighten con- nections which may have loosened in service. Replace wire and wire terminals that show signs of oxidation which would interfere with establishment of reliable electrical connections.

NOTE: Maintenance intervals to be determined by the user based on their knowledge of the heated medium and operating conditions.