Chromalox PTHT-101 specifications Wiring, Operation, Maintenance

WIRING

WARNING: Hazard of Electric Shock. Any installa- tion involving electric heaters must be effectively grounded in accordance with the National Electrical Code to eliminate shock hazard.

1.Electrical wiring to heater must be installed in accordance with the National Electrical Code or local electrical codes by a qualified person.

2.When element wattages are not equal, heaters must not be connected in series.

3.For single phase, apply power across two (2) black leads. Green wire (ground) must be properly grounded.

4.For balanced 3 phase loads, three (3) heaters of the same volt- age and wattage ratings are required. A six-step guide to wiring connections for 3 phase delta:

#1		A	#1	A	#1	B
		A		A		B
#2	#3	#2	#3		#2	#3

Step 1: Designate one black leadwire as “A” and one black leadwire as “B”.

Step 2: Assign designa- tions 1, 2, 3 to heaters.

A #1

A

#2

Step 3: Connect leadwire			Step 4: Connect leadwire
“A” of Heater #1 to lead-			“B” of Heater #1 to lead-
wire “A” of Heater #2.			wire “B” of Heater #3.
B
	A	#1	B

B	A		B
	#2	#3	Three Phase
#3			Power

B AB

A

Step 5: Connect leadwire “B” of Heater #2 to lead- wire “A” of Heater #3.

Step 6: Designate one 3 phase power line to each of the three connections.

Note: Green wire (ground) of each heater must be properly grounded.

OPERATION

1.Do not operate heater at voltages in excess of that stamped on the heater since excess voltage will shorten heater life.

2.WARNING: Always maintain a minimum of 2” of solution above the heated portion of the element (See Figure 1, “B” Dimension) to prevent exposure of the effective heated length.

If the heater is not properly submerged, it may overheat and shorten heater life and create a fire hazard.

3.In an electroplating operation the heaters are not under any circumstances to be placed between the electrodes and the work.

MAINTENANCE

WARNING: Hazard of Severe Shock. Disconnect all power to heater before servicing or replacing heaters.

1.Heaters should be checked periodically for coatings and corro- sion, and cleaned if necessary.

2.Tank should be checked regularly for sediment around the end of heater as this sediment can act as an insulation and shorten heater life.

Limited Warranty:

Please refer to the Chromalox limited warranty applicable to this product at http://www.chromalox.com/customer-service/policies/termsofsale.aspx.

2150 N. RULON WHITE BLVD., OGDEN, UT 84404		TA - Q0 - EF
Phone: 1-800-368-2493	www.chromalox.com	Litho in U.S.A.