Chromalox PF421-6 specifications General, Installation, Operation, Renewal Parts Identification

Installation, Operation

and

RENEWAL PARTS IDENTIFICATION

4	EH-HVT
(Supersedes PF421-5)	PF421-6

161-048557-001

APRIL, 2003

Type EH and HVT Electric Utility Heater

Type EH

Type HVT*

NOTICE: Carefully remove heater from carton and check for shipping damage. Any damage claims should be entered immediately with the carrier.

				63/4”
		A (EH)		33/4”
		A (HVT)		Thermostat
				(HVT Only)
Specifications – Table A
			Dim. “A”
Model	VoltS	WattS	(In.)	BTUH
EH-1221	120	250	145/8	853
EH-1221	240	250	145/8	853
EH-1251	120	500	145/8	1706
EH-1251	240	500	145/8	1706
HVT-1251*	120	500	285/8	1706
HVT-2411*	120	1000	285/8	3412

*HVT models are equipped with a 55°F to 110°F adjustable thermostat.

GENERAL

FIRE HAZARD. Since heaters are capable of devel- oping high temperatures, extreme care should be taken to:

A.Locate on vertical wall with length of heater positioned horizon- tally. HVT models must be installed with thermostat at right end;

B.Avoid mounting into a wall recess since such mounting interferes with free air circulation, increases heater temperatures, and pre- vents proper thermostat operation on HVT models;

C.Mount heaters with a minimum clearance of 24” above floor level or from adjacent wall;

D.Keep all combustible materials a minimum of 4” from front and top of heater.

1.Remove screw from each end and remove perforated cover.

2.After feeding electrical wiring through opening in back of heater (See WIRING section), mount back of heater to wall with four screws (HVT models-5/16” diameter holes on 5” x 25-7/8”) (EH models 9/32” diameter holes on 5x12-1/2” centers) through back of heater. Leave one pair of end screws snug, but not tight, to avoid expansion noise due to binding.

© 2010 Chromalox®, Inc.