Chromalox PE414-3 specifications General, Specifications Table a Specifications Table B

Chromalox®

Installation, Operation

and

RENEWAL PARTS IDENTIFICATION

4	NWH
(Supersedes PE414-2)	PE414-3

161-304777-001

MAY, 2007

																Circulation
															TM
				Heaters for Oil or Water Heating
Dimensions (Inches)							7-7/8"					Specifications – Table A						Specifications – Table B
Rotatable	6"											Dim. (In.)						Dim. (In.)
Terminal												A	B			Model	PCN	A	B	Model	PCN
Cover
		4"										Cast Iron Body / Oil .5 to 10 kW						Cast Iron Body / Oil .5 to 10 kW
1" Conduit				8 1/2"								29	19	NWHOSR-06-04P5-E1			100108	32	19	NWHOSR-06-04P5-E2	100255
Opening										11"		29	19	NWHOSR-06-04P5-E1			100116	32	19	NWHOSR-06-04P5-E2	100263
Outlet												41	303/4	NWHOSR-06-005P-E1			100124	44	303/4	NWHOSR-06-005P-E2	100271
1" FNPT
												29	19	NWHOSR-06-006P-E1			100132	32	19	NWHOSR-06-006P-E2	100280
						A						29	19	NWHOSR-06-006P-E1			100140	32	19	NWHOSR-06-006P-E2	100298
											A
				B								41	303/4	NWHOSR-06-010P-E1			100159	44	303/4	NWHOSR-06-010P-E2	100300
										B
												Galvanized Body / Water .5 to 40 kW						Galvanized Body / Water .5 to 40 kW
												29	19	NWHSRG-06-018P-E1			100010	32	19	NWHSRG-06-018P-E2	100327
Inlet												29	19	NWHSRG-06-018P-E1			100028	32	19	NWHSRG-06-018P-E2	100343
1" FNPT												41	303/4	NWHSRG-06-020P-E1			100036	44	303/4	NWHSRG-06-020P-E2	100351
					2 Mtg. Lugs							29	19	NWHSRG-06-024P-E1			100044	32	19	NWHSRG-06-024P-E2	100360
1" FNPT Pipe Plug			1/2"-13 x 1/2" Deep					6"				29	19	NWHSRG-06-024P-E1			100079	32	19	NWHSRG-06-024P-E2	100378
(or Inlet)		E1							E2
												41	303/4	NWHSRG-06-040P-E1			100095	44	303/4	NWHSRG-06-040P-E2	100386

GENERAL

READ ALL INSTRUCTIONS BEFORE USE

FIRE/EXPLOSION HAZARD. Ordinary location heaters (designated E1) are not intended for use in hazardous atmospheres where flammable vapors, gases, liquids or other combustible atmospheres are present as defined in the National Electrical Code. Failure to comply can result in personal injury or property damage.

This design has the versatility of field adjustments of voltage kW through various wiring combinations.

The NWHSRG model is a general purpose water circulation heater intended for indoor use. E2 designs have a Moisture Resistant/Explosion Resistant enclosure. Designs are up to 40kW

-DO NOT USE THE NWHSRG MODEL FOR OIL.

The NWHOSR model is a general-purpose regular and fuel oil solution circulation heater intended for use indoors. E2 designs have a Moisture Resistant/Explosion Resistant enclosure. Designs are up to 10kW - DO NOT USE THE NWHOSR MODEL FOR WATER. Ensure the wiring guide for oil is used for the correct wiring diagram.

Both the NWHSRG and NWHOSR use six INCOLOY® sheath elements welded to a steel 2.5” screw plug. The vessel is cast iron and is surrounded by 1.5” insulation and a sheet metal jacket. For water applications, the vessel has a galvanized coating. A J-type thermocouple in a thermowell is standard. These versaTHERMTM heaters are designed for 150 psig max. at 35°F min. to 300°F max.

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.

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

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 conse- quences of failure could result in personal injury or property damage, back-up controls are essential.

If foreign material is to be carried by the liquid flow, install suitable filters in the inlet pipe to the heater.

Ensure the temperature/pressure is controlled below the vapor point of the liquid at all times and is within the temperature/pres- sure ratings for this heater.

Heating elements must be completely immersed in liquid when energized.

© 2010 Chromalox, Inc.