Chromalox PD422-4 operating instructions 161-056676-001, Date November, Specifications, General

Chromalox®

Installation

and

Operating Instructions

SERVICE REFERENCE

DIVISION 4		SECTION PTH
SALES	(Supersedes PD422-3) PD422-4
REFERENCE
	161-056676-001

DATE NOVEMBER, 2004

Type PTH

Over-the-Side Immersion Heaters

			1-3/4”					Specifications
					Leadwires w/ Ground
								Model	Volts			Dimensions (In.)		Approx.
														Wt.
					3’ PVC Flexible Conduit			Number	(1 Ph)	kW	W/In2	A	B
														(Lbs.)
								PTH-101	120	1	21	14	8	4
A
								PTH-102	240	1	21	14	8	4
							Mounting Plate
							5 x 1-1/2” Wide with	PTH-202	240	2	31	21	11	4
							(2) Holes	PTH-204	480	2	31	21	11	4
							4” Center to Center
				4, 6 and 9 kW
								PTH-302	240	3	32	26	16	5
		B		Heaters Equipped				PTH-304	480	3	32	26	16	5
		Heated		with Two (2)
								PTH-402	240	4	34	20	20	5
				1-1/8” Spacers
								PTH-404	480	4	34	30	20	5
								PTH-602	240	6	34	40	30	6
								PTH-604	480	6	34	40	30	6
				1, 2 and 3 kW
								PTH-902	240	9	34	54	44	8
				Heaters Equipped
								PTH-904	480	9	34	54	44	8
				with One (1)
				1-1/8” Spacer
	Figure 1					Figure 2

GENERAL

FIRE/EXPLOSION HAZARD. This heater is not intend- ed for use in hazardous atmospheres where flamma- ble vapors, gases, liquids or other combustible atmos- pheres are present as defined in the National Electrical Code. Failure to comply can result in per- sonal injury or property damage.

Chromalox type PTH over-the-side immersion heaters are especially suited for use in plating tanks, rinse tanks and other aqueous solutions.

IMPORTANT: It is the responsibility of the purchaser of the heater to make the ultimate choice of sheath material based upon his knowledge of the chemical composition of the corrosive solution, character of the materials entering the solution, and controls which he maintains on the process.

Sheath corrosion can result in a ground fault which, depending upon the solution being heated, can cause an explosion or fire.

Heater Construction Characteristics.

A.High quality resistance wire held in place by compacted mag- nesium oxide in type 316 passivated stainless steel sheath.

B.Medium watt densities.

C.Vapor resistant junction box with 3’ PVC flexible conduit with ground wire.

D.Spacer bar prevents elements from touching tank wall.

E.Flat profile consumes little tank work area.

The system designer is responsible for the safety of this equipment and should install adequate back-up controls and safety devices with their electric heating equipment. Where the consequences of failure could result in personal injury or property damage, back-up controls are essential.

© 2010 Chromalox, Inc.