Chromalox PF411-10 installation instructions Wiring, Maintenance, 125V, NEMA 5-20P, NEMA 6-20P

WIRING

Electric Shock Hazard. Heater case must be effec- tively grounded in accordance with the National Electrical Code to avoid hazard of electric shock.

NOTE: All electrical wiring must be installed in accordance with the National Electrical Code and local codes by a qualified person.

1.This heater is for use on 120, 208 or 240 volts. (See heater nameplate.) The cord has a plug similar to one shown in

Figure 10. (Consult Table A for actual plug configuration.) No adapter is available for these blade type configurations, and none should be used.

An appropriate 20A @ 125V, 15A @ 250V or 20A @ 250V grounding outlet must be used. When properly installed, it provides a ground connection through the cord to the heater to protect the operator from electric shock.

2.Connect heater according to the voltage and frequency speci- fied on the nameplate and using the appropriate wiring dia- gram (below).

		20A					15A			20A
		125V					250V			250V
NEMA 5-20P					NEMA 6-15P				NEMA 6-20P
	Figure 3				Figure 4					Figure 5
Element		Elements			Element			Element
					Cutout	Contactor		Cutout	Contactor
Switch	Cutout
					M
M	Switch	Cutout
		M			Resistor			M
			L1		L2		L1	L2
Cord Set		Cord Set				Switch			Switch	Grounding Pin
When Furnished				Cord Set
	When Furnished							Cord Set
			When Furnished
							When Furnished
Figure 6		Figure 7			Figure 8			Figure 9		Figure 10
			Elements					Elements
		M			Contactor			M	Contactor
		Resistor	Cutout					Cutout
	Toggle	1	2			Toggle	L1	L2
	Switch	L2				Switch
		L1
		3	4
					2				2
			Terminal Block					Terminal Block
					1				1
	Optional Remote				3	Optional Remote			3
									Fan Delay
	Thermostat				Fan Delay	Thermostat		Cord Set
	By Others	Cord Set				By Others
		When Furnished					When Furnished
			Figure 11					Figure 12

MAINTENANCE

1.Hazard of Electric Shock. Disconnect all power before attempting to service this heater.

Do not attempt to service heater while unit is operating as there is hazard of electric shock, injury from operating fan and burns from hot heating elements.

2.Following long periods of idleness, heater should be vaccu- umed before start-up, to remove accumulated combustible particles which otherwise may smoke or incinerate on initial heat up.

3.When heater is not in use, store in safe location to prevent heater and/or power cord damage.

4.HF heaters use permanently lubricated motors, do not attempt to lubricate.