Ì Í k m u s i n r o - harrington industrial plastics · scraping the surface can destroy...

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This heater is a component part for a heating system typically used to heat open-top process tanks containing aqueous electroplating chemistry. Listed below are system requirements. Shutoff provides the ability to interrupt power if predetermined values are exceeded. to detect ground fault leakage ((heater power conducted through earth ground) and shut-off if current exceeds value. to shut-off if heater sheath temperature exceeds value. to shut-off if the solution temperature exceeds value. to shut-off if the solution level falls below value, exposing the heater’s Hot Zone. This helps prevent an overheat hazard. with sensor detection for failed (open or shorted) temperature sensors to prevent an overheat hazard, as heating control circuitry permits heater power until the temperature reaches its set value. is less than 5 ohms; including resistance from grounding conductors connecting heater to earth ground. It is the customer’s

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Page 1: Ì Í K M U S I N R O - Harrington Industrial Plastics · Scraping the surface can destroy fluoropolymer sheaths, remove passivation surfaces on metal heaters and chip quartz surfaces

� � � � � � � � �� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� � � � � � � � � � � � � � � � � � � � � � �

This heater is a component part for a heating system typically used to heat open-top process tanks containing aqueous electroplating chemistry.�

– ! " # $ " % & ' ( $ " ) * " + , - % " ) " . $ (Listed below are / 0 1 0 / 2 / system requirements. Shutoff provides the ability to interrupt power if predetermined values are exceeded. 3 4 5 2 1 6 7 8 2 9 : ; < : < = : 0 5 1 to detect ground fault

leakage ((heater power conducted through earth ground) and shut-off if current exceeds value. > < 8 : < 4 ? @ < 8 : @ A < / B < 4 8 : 2 4 < ; < : < = : 0 5 1 to shut-off if heater sheath temperature exceeds value. > 0 C @ ? 5 9 2 : 0 5 1 A < / B < 4 8 : 2 4 < ; < : < = : 0 5 1 to shut-off if the solution temperature exceeds value.

? 5 9 2 : 0 5 1 D < E < 9 ; < : < = : 0 5 1 to shut-off if the solution level falls below value, exposing the heater’s Hot Zone. This helps prevent an overheat hazard. A < / B < 4 8 : 2 4 < F 5 1 : 4 5 9 with sensor detection for failed (open or shorted) temperature sensors to prevent an overheat hazard, as heating control circuitry permits heater power until the temperature reaches its set value. A 5 : 8 9 < 8 4 : @ C 4 5 2 1 6 4 < G 0 G : 8 1 = < is less than 5 ohms; including resistance from grounding conductors connecting heater to earth ground.

H I J K L M N K N O O J M P N Q R S J T L J M P U N I I N V R N L J O T R W X I T P L N K L T R Y P P Z K S T P X Q I W X M Q X W I J R J T R [ X Q I W J L S W I J R J \ T R [ K T R P Z ] ^ J K L X J M P Q R R J IL Q T P S Q K Y S T _ T M [ N ` R Q L X M Q X J M I W N R P L T I I J [ T R [ O T N R L T N R J [ a b I I S J T L J M P O Z P L ] J J c Z N X X J [ U N L S T L S J M O T I Q d J M L J O X J M T L Z M J[ J d N K J P Z K S T P T e f \ e g \ Q M e h L W X J \ T R [ O Z P L S T d J I N c Z N [ I J d J I K Q R L M Q I L Q M J [ Z K J L S J X Q L J R L N T I Q ` ` N M J aIt is the customer’s i j k l m n k o p o q o r s r m l t i u v w k j x o n k r w q q w n y z w o n r w o n r v j i z w q w n y q o { t o y q j | j q l i m r j u r o m n }e M N Q M L Q M J O Q d N R V T R [ N R P X J K L N R V S J T L J M P \ N L N P P L M Q R V I W M J K Q O O J R [ J [ L S T L W Q Z L Z M R Q ` ` T I I X Q U J M a b I L S Q Z V S L S J S J T L J M T R [ L T R YT M J V M Q Z R [ J [ \ L S J X M Q ] T ] N I N L W Q ` ` Z I I I N R J d Q I L T V J M J P N [ J R L N R L S J L T R Y N P S N V S N ` S J T L J M P S J T L S ` T N I P a b [ S J M J L Q T I I ~ W P L J O� J c Z N M J O J R L P N R J I J K L M N K N O O J M P N Q R S J T L J M T X X I N K T L N Q R P L Q S J I X X M J d J R L J I J K L M N K T I P S Q K Y a � ` S J T L J M N P N O X M Q X J M I W N R P L T I I J [ T R [O T N R L T N R J [ Q M N R P L T I I J [ U N L S Q Z L T X M Q X J M I W J R V N R J J M J [ K Q R L M Q I P W P L J O \ T P J M N Q Z P ` N M J T R [ X J M P Q R R J I S T _ T M [ N P X M J P J R L a� m n m r t k j j q j u r i o u o z z j i k o m n v j w r j i k r m v j w r � q w z z w p q j k m q t r o m n k }

Page 2: Ì Í K M U S I N R O - Harrington Industrial Plastics · Scraping the surface can destroy fluoropolymer sheaths, remove passivation surfaces on metal heaters and chip quartz surfaces

� � � � � � � � � � � � � � � � � � � � � � � � � � �� � � � � � � � � � � � � � � �–

� � � � � � � � �

� �– � " . " % #   � , - ¡ "   - . " (

Always follow installation instructions, wiring diagrams and these general guidelines to ensure optimal performance and heater life longevity. ¢ £ £ ¤ ¥ £ ¦ § ¨ © ª £ « © ¬ © ­ £ ® ¯ ¤Never remove heaters from solution while at operating temperature as personnel may be exposed to hot surfaces, Quartz heaters may fracture and fluoropolymer heaters may melt. Power down and allow heater to cool for five to ten (5–10) minutes before removal or drainage. ° © ¯ ± © « ¢ ¤ © ¯ § ² § ³ ¯ § ¥ ´ ¯ ² § ± © § ¯ § µ ©Sludge and particle buildup on or around heater results in excessive temperatures and increased corrosion that shorten life of heater. Ensure installation provides sufficient excess power line for easy cleaning/maintenance. Check heaters frequently for buildup and clean if accumulation is present.

Turn off Power before beginning maintenance. Wear protective clothing for tank contents prior to removal and inspection. Use care when maintaining heaters. Scraping the surface can destroy fluoropolymer sheaths, remove passivation surfaces on metal heaters and chip quartz surfaces. Never hammer heaters to remove built-up deposits Consult with your process supplier for chemical sludge removal procedures ¬ © ¶ ¤ ¯ µ © ­ © § ± · « £ ± © µ ± £ « ¸

Use only manufacturer’s Over Temperature Protectors for replacement and follow factory-supplied instructions for Protector 1 Series or Protector 2 Series protectors, or it could be rendered ineffective.� ¹

– � " . " % #   º - % - . » ¼ ½ $ " (· £ ¦ © « ¾ ² « ² § ³Size/route power wires to latest edition NEC; connect to manufacturer temperature controller. ´ ¿ ¤ ± ² ¶ ¤ © ¶ « £ ± © µ ± £ « ¦ ² « ² § ³Refer to Figures 2, and 5–7 in this booklet for multiple protector wiring in a single installation. À Á « © © ¶ Á ¯ ¸ © µ ¿ « « © § ± « ¯ ± ² § ³The three phase current on single phase heater nameplates only applies when field installing/ assembling three (3) identical single phase heaters in a three phase delta arrangement. Each element rated at phase-to-phase voltage.

� – ! " # $ " % � . ( $ #     # $ - ½ .Ã Ä Å Æ Ç È ÉÊ Z T M L _ T R [ Ë I Z Q M Q X Q I W O J M S J T L J M P T M J d J M W ` M T V N I J T R [M J c Z N M J K T M J U S J R S T R [ I N R V T R [ T P P J O ] I N R V aÌ P J J Í L M J O J K T M J U S J R S T R [ I N R V J c Z N X O J R L \ T P` I Z Q M Q X Q I W O J M P S J T L S P K T R ] J N M M J X T M T ] I W [ T O T V J [ ] W L S JP I N V S L J P L R N K Y Q M K Z L a Î J d J M Z P J Y R N d J P Q M T R W Q L S J M P S T M XN R P L M Z O J R L L Q Q X J R S J T L J M U M T X X N R V aÏ

Unpack your equipment and thoroughly inspect each product for damage that may have occurred during shipping. Should damage exist, notify the carrier immediately for instruction on filing claims. Ð Ñ Ò Ñ Ó Ñ Ô Õ Ö × Ó Õ Ø × Ù × Ú Õ Ø Ô Ö Ñ Ø Û Ü Ó Ý Þß

Locate the heater nameplate tag, stamped on metal coils or on the fluoropolymer coil wrapping, which provides voltage and amperage information. Identify heater style and refer to the packing list and purchase order to verify you have the correct equipment; see Figures 1–3 for reference. à

If all data matches, review installation location to identify and verify the following items:

line voltage and heater voltage are in agreement. Over Temperature Protector/fused disconnect or circuit breaker is correct, of sufficient capacity, and sized per NEC, latest edition. process tank is equipped with a Low Solution Level Detection shut-off device. you have the correct sized temperature controller (thermostat) for heater voltage and amperage requirements; controller contains required circuitry for the Over Temperature Protector and Low Solution Level Detector. Heater sheath material and solution to be heated are compatible. If voltage or material is incorrect, do not install or operate heater. áFor Quartz heaters, continue to step 5, for other

types of heaters, continue to step 8. â ã Û × Ö Ó ä å Õ × Ó Õ Ö Ý × Ö Õ æ Ö × Ú ç è Õ é ê Ý Õ Ü × Ö Õ ë ì Õ Ò ì × Ò Ø è ç Ò Ú× Ò Ø × Ý Ý Õ Ù í è ç Ò Ú ÞTurn head cover counterclockwise to

remove. îTilt the tube slightly and slowly insert the heating

element assembly until seated. ïRoute the wires through the conduit opening in the

head. Pitch heater electrical conduit down and away from heater head for drainage. ð

Install heater head cover; screw on clockwise until tight. (Continue to step 9)

Page 3: Ì Í K M U S I N R O - Harrington Industrial Plastics · Scraping the surface can destroy fluoropolymer sheaths, remove passivation surfaces on metal heaters and chip quartz surfaces

� � � � � � � � � � � � � � � � � � � � � � � � � � �� � � � � � � � � � � � � � � �–

� � � � � � � � �Heaters need to be mounted in locations away from contact with work, and the heater heads should be protected from splashing, dripping and excessive moisture. Do not operate electric heaters under covers and always provide adequate ventilation.

ñ ò ó ô õ ö ÷ ø ó õ ø ô ùú ô û õ ø ü õ û ô ý û ô þ÷ û õÿ û � ø � ø õ ó � ÷ ø ó õ ø ô ùú ô û õ ø ü õ û ô ý û ô þ÷ û õÿ û � ø � ø õ ó � � � � � ó � ø � ÷ ø ó õ ø ô ùú ô û õ ø ü õ û ô ý û ô þ÷ û õÿ û � ø � ò û ô û � û � � ø ô ÷ ø ó õ ø ô ùú ô û õ ø ü õ û ô ý � þ � � û ô �÷ û õÿ û � ø � � � � � ø � ø � õ� ø õ ó � û ô � ò û ô û � û � � ø ô÷ ø ó õ ø ô ùú ô û õ ø ü õ û ô ý � þ � �û ô �

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Page 4: Ì Í K M U S I N R O - Harrington Industrial Plastics · Scraping the surface can destroy fluoropolymer sheaths, remove passivation surfaces on metal heaters and chip quartz surfaces

� � � � � � � � � � � � � � � � � � � � � � � � � � �� � � � � � � � � � � � � � � �–

� � � � � � � � �

(Heater Installation continued) �Carefully Mount heater (and guard if applicable)

securely to tank. Hot Zone must be totally immersed at all times – the cold length of the heater must be long enough to prevent exposing the top of the heater Hot Zone. Low Solution Level Detection with heater power shut-off provides the ability to interrupt heater power if the solution level falls, exposing the heater Hot Zone. Level controls must be used. Minimum 1” clearance between heater sheath and tank at all points. A one inch (1”) minimum tank freeboard above the heater Hot Zone is required to prolong heater life. If solution level drops below the hot zone, it may shorten the life of the heater and may pose a significant fire hazard in plastic or plastic lined tanks. Minimum 2” clearance above any parts accumulation /sludge on bottom of tank. Isolate heaters from any electrified source. Heaters should not contact anodes, cathodes, any electrified portions of tank, racks or parts at any time. Connect the heater ground leads to the building ground (or rectifier ground) to prevent voltage potential difference. Heater heads should be protected from splashing, dripping and excessive moisture. Do not operate heaters under covers and always provide adequate ventilation. Ï �Route heater power lead wires along with ground

lead and protector leads through conduit. Size and route power wiring to NEC latest edition. Standard wiring consists of the following colored wire:

black—power leads green—ground lead yellow, blue, white or red—Over Temperature Protector leads (color is dependent upon protector designation and temperature rating)

Other wiring color combinations are available; consult factory for details. If installing flexible nonmetallic conduit, properly install connector ferrule to ensure liquid-tight operation.

Ï ÏInstall the control. Secure the sensor or place in a

suitable thermowell to prevent movement that could lead to erroneous readings and a dangerous overheat condition. Install the top of the sensor bulb below the minimum liquid level and always above the bottom of the heater. A mislocation or floating sensor can result in an overheat condition which could result in a significant fire hazard in plastic tanks. Ï ß

Set low level shut-off at least 1” above the top of heater Hot Zone. Ï à

Install the junction box per NEC latest edition. Mount on an ambient surface. Using approved splice connectors, install a 60° Celsius wire (minimum—based on nameplate amperage).� �

–¹ ½ . ¡ , - $ � . ( $ #     # $ - ½ .

See Figure 3 for illustration of Conduit. ÏCut conduit end square. ßApply compression nut over end of conduit. àApply connector ferrule over end of conduit. áPlace threaded insert into end of conduit. âPlace conduit with insert, ferrule and nut into the

connector body until the insert sits firmly in the bottom of the connector body interior. î

Slip the connector ferrule along the conduit until it is seated against the connector body. ï

Hand tighten the compression nut firmly onto the connector body threads. ð

Place sealing ring onto the connector body. �Insert assembly into a 7/8” diameter (or appropriately

sized) hole in panel or box opening. Ï �Secure the assembled connector into the panel or

box using the locknut, making sure that the sealing ring is between the connector body and the panel or box.

Page 5: Ì Í K M U S I N R O - Harrington Industrial Plastics · Scraping the surface can destroy fluoropolymer sheaths, remove passivation surfaces on metal heaters and chip quartz surfaces

� � � � � � � � � � � � � � � � � � � � � � � � � � �� � � � � � � � � � � � � � � �–

� � � � � � � � �

The Protector 1 Series Over Temperature Protectors utilize a eutectic switch with a pre-specified One-Shot melt temperature. Devices of this type are recommended for all heater installations. The One-Shot characteristic can alert operators to identify and remedy the cause of over temperature conditions as they replace spent fuses. The UL/CSA rating permits direct connection in many applications for economical installations. All three-phase installations or those whose heater power requirements exceed the amperage or voltage rating require a power contactor to provide an indirect heating load connection.� � * # $ - . » * " + , - % " ) " . $ (

15 amps at 120VAC or 240 VAC Per UL requirements, you must purchase replacement protectors from the manufacturer.� � � � � � ! � " � # � $ ! � % � $ ! � % & $ � # � $ ! � % ' ! ( � � ) $ ! * + � " ,- . / 0 1 . 2 . 3 2 4 � � ! $ � � 5 � % ! * � 6 & � � ! � . 3 0 7 8 9 3 1 7 :- ; / 0 1 1 2 . 3 2 4 � � ! $ � � 5 � % ! * � 6 & � � ! � 1 < 0 7 8 9 . . 0 7 :- = / 0 1 < 2 . 3 2 4 � � ! $ � � 5 � % ! * � 6 & � � ! � < 0 0 7 8 9 . ; > 7 :- . / 0 1 . 2 3 = 2 4 � � ! $ � ? 2 6 * $ , � � ! � . 3 0 7 8 9 3 1 7 :- ; / 0 1 1 2 3 = 2 4 � � ! $ � ? 2 6 * $ , � � ! � 1 < 0 7 8 9 . . 0 7 :- = / 0 1 < 2 3 = 2 4 � � ! $ � ? 2 6 * $ , � � ! � < 0 0 7 8 9 . ; > 7 :- . / 0 < 1 2 1 / 2 4 8 � @ � % � , � � ( " � % � 5 � % ! * � 6 & � � ! � . > 0 7 8 9 3 3 7 :- . / 0 < 1 2 ; 3 2 4 8 � @ � % � , � � ( " � % ? 2 6 * $ , � � ! � . > 0 7 8 9 3 3 7 :- . / 0 < 1 2 1 / 2 4 A @ $ % ! B � 5 � % ! * � 6 & � � ! � . 3 0 7 8 9 3 1 7 :- ; / 0 < < 2 1 / 2 4 A @ $ % ! B � 5 � % ! * � 6 & � � ! � 1 < 0 7 8 9 . . 0 7 :C × í è Õ D E F G H I J K I H G L M J G N J O M P J K N Q N K R I N H S O� �

– T % ½ $ " U $ ½ % V & " % - " ( � . ( $ #     # $ - ½ .Ã Ä Å Æ Ç È ÉË Q I I Q U L S J M J X I T K J O J R L X M Q K J [ Z M J P Q Z L I N R J [ N R L S N P[ Q K Z O J R L a Ë T N I Z M J L Q [ Q P Q O T W M J P Z I L N R T ` N M J S J T L J M ` T N I Z M JQ M X M J O T L Z M J ] Z M R Q Z L a Î Q L J Ì W � T L N R V � J c Z N M J O J R L P U S J R[ J L J M O N R N R V S J T L J M P W P L J O U N M N R V ae X Ë H ~ W P L J O P—

Ë Q M P L J X P Y \ Z T R [ f f \ L T Y J K T M J R Q L L Q[ T O T V J Q M O Q d J L S J X M Q L J K L Q M U J I I a � ` W Q Z [ Q \ L S J S J T L J MO Z P L ] J ` T K L Q M W [ M J X T N M J [ ab I I ~ W P L J O P—

b ` L J M P L J X f \ \ N ` O Q N P L Z M J M J Q K K Z M P \ [ Q R Q LM J L Z M R L S J S J T L J M L Q P J M d N K J a ] Q R P Z I L ` T K L Q M W ` Q M T [ d N K J aÏ ? @ 2 : 5 ^ ^ _ 9 5 = ` 5 2 : @ < 8 : < 4 < 9 < = : 4 0 = 8 9 B 5 a < 4 bßRemove and retain Heater Head cover. àIn the Heater Head, mark where the spent Protector

leads exit the Protector well. áNote the location of the Wire Nuts secured to the

spent Protector leads (for re-connection).

âRemove and retain Wire Nuts, separate wires.îRemove and retain Electrical Insulation Putty from

the spent Protector. ïRemove and retain the spent Protector. ðUsing the spent Protector leads as a measuring guide,

cut and strip the new Protector leads to a similar length. �

Line up Protectors and transfer marks from the spent Protector leads to the new leads. Ï �

Examine the Protector well for moisture by inserting a long wooden dowel or similar suitable device. If moist, thoroughly dry the well using cloth swabs or similar means.

Ensure no material is left in the well. Once dry, ensure that no further moisture is seeping into the Protector well. If moisture reoccurs, 6 5 1 5 :4 < : 2 4 1 : @ < @ < 8 : < 4 : 5 G < 4 E 0 = < . Consult factory for advice. Ï ÏInsert new Protector into the dry, empty well until

Protector bottoms out. Verify position is at the bottom of the well by feeling it through the Protector or using a push rod.

Use the Protector lead insulation marks to make sure leads are lined up with the top of the Protector well in the heater head. If the marks are above the top of the well, there is a possibility the Protector is not fully inserted. c 1 G 8 ^ < 5 B < 4 8 : 0 1 C = 5 1 6 0 : 0 5 1 G < d 0 G : if heater is used with an improperly positioned Protector. Ï ßReinstall connecting wires to the wire nuts. Ï àReapply Electrical Insulation Putty. Seal the well

opening to prevent moisture from entering.

Page 6: Ì Í K M U S I N R O - Harrington Industrial Plastics · Scraping the surface can destroy fluoropolymer sheaths, remove passivation surfaces on metal heaters and chip quartz surfaces

� � � � � � � � � � � � � � � � � � � � � � � � � � �� � � � � � � � � � � � � � � �–

� � � � � � � � �

Ï áExamine the heater head. If necessary, replace

Heater Head Cover and Head Gasket. If provided, cover hold-down screws to ensure a moisture tight seal when reinstalled. Ï â

Reinstall the new assembly. Ï îExamine conduit connection at heater head; repair

for liquid tight connection, if necessary. Ï ïReconnect power to return heater to normal

operating service.

The Protector 2 Series Over Temperature Protectors are recommended for heaters in metal or plastic tanks. The slow make/slow break bimetallic thermostat has a pre-specified switch temperature. The slow break characteristic coupled with a push button reset feature is extremely useful when a high temperature or low liquid level occurs. � � * # $ - . » * " + , - % " ) " . $ (

2.6 amps at 120 VACPer UL requirements, you must purchase replacement protectors from the manufacturer.e f g h i j k l h m j n h o l h p e o l h p q o i n h o l h p r l s i h t o l u v h m wx y y z { | } ~ z } � e h l o i f � h p l u h � q g h l f ~ z { � � � z y � �x � | { | � } ~ z } � e h l o i f � h p l u h � q g h l f y � { � � � ~ ~ { � �x � y z { � } ~ z } � e h l o i f � h p l u h � q g h l f � { { � � � ~ | � � �x y y z { | } z � } � e h l o i � } � u o w h g l f ~ z { � � � z y � �x � | { | � } z � } � e h l o i � } � u o w h g l f y � { � � � ~ ~ { � �x � y z { � } ~ z } � e h l o i � } � u o w h g l f � { { � � � ~ | � � �x y | � � � } y � } � � i � f p f w f i s m h p f � h p l u h � q g h l f ~ � { � � � z z � �x z � ~ � � } ~ y { } � � i � f p f w f i s m h p f � h p l u h � q g h l f y ~ { � � � � � � �x y | � � � } | z } � � i � f p f w f i s m h p � } � u o w h g l f ~ � { � � � z z � �x z � ~ � � } ~ y { } � � i � f p f w f i s m h p � } � u o w h g l f y ~ { � � � � � � �x y | � � � } y � } � � � o p l � f � h p l u h � q g h l f ~ z { � � � z y � �x � � � z { } | z } � � � o p l � f � h p l u h � q g h l f y � { � � � ~ ~ { � �C × í è Õ � E F G H I J K I H G � M J G N J O M P J K N Q N K R I N H S O� � �

– T % ½ $ " U $ ½ % � & " % - " ( � . ( $ #     # $ - ½ .� Ä � É Ç É �Î J d J M Z P J T e M Q L J K L Q M g ~ J M N J P � d J M X J O X J M T L Z M J e M Q L J K L Q ML Q [ N M J K L I W P U N L K S S J T L J M X Q U J M a b I U T W P ` Q I I Q U L S JM J X I T K J O J R L X M Q K J [ Z M J P Q Z L I N R J [ N R L S N P � R P L T I I T L N Q R ~ S J J L aË T N I Z M J L Q [ Q P Q O T W M J P Z I L N R T ` N M J Q M X M J O T L Z M J S J T L J M] Z M R Q Z L a The Protector 2 Series Over Temperature Protector is electrically installed with a holding circuit and a power contactor to energize the heater. See Figure 5B, C and D for Protector 2 Series wiring.

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Page 7: Ì Í K M U S I N R O - Harrington Industrial Plastics · Scraping the surface can destroy fluoropolymer sheaths, remove passivation surfaces on metal heaters and chip quartz surfaces

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The P3/P8 series is recommended for fluoropolymer sheathed heaters where over temperature could result in sheath damage and/or fire hazard.

P3/P8 works with P3-A, the Over Temperature Board, to provide sheath and fire hazard protection through the power contactor. P3-A is a temperature controller switch with built-in thermocouple testing, momentary “on-board” reset holding circuitry and output contacts that interconnect with the process temperature controller and heater power contactor. The enable terminals provide the ability for loop devices such as level probes, high temperature cutoffs, and so on, to interrupt heater power. You can install a virtually endless loop of interrupt devices (normally closed), linked together in series. See Convert P3/P8/P1/P2 For Loop Devices.

The P3/P8 miniature insulated thermocouple, installed between the heater surface and fluoropolymer sheath, extends to P3-A with a factory installed temperature set point. This provides the ability for P3-A to check P3/P8 thermocouple status and interrupt the heater power contactor/heater power in the event of an over temperature condition or thermocouple failure. An on-board LED provides indication of proper function. In most cases, you can field-convert P3-A for over temperature protection of fluoropolymer heaters with P1 or P2. See Convert P3-A For P1/P2 Operation.

Multiple P3/P8s require multiple P3-A Boards wired to the heater power contactor.� Ñ – T Ò # . ¡ T Ó � . ( $ #     # $ - ½ .Ô T _ T M [ Q Z P d Q I L T V J J R d N M Q R O J R L P

—Q R I W c Z T I N ` N J [ J I J K L M N K N T R PP S Q Z I [ X J M ` Q M O ] Q R d J M L J [ e h [ b Õ Q T M [ X J P L P T R [X M Q Z ] I J P S Q Q L N R V U S N K S Q K K Z M P N R T R Q X J R J R K I Q P Z M J aÌ P J H Í L M J O J K T M J T P I N d J K N M K Z N L P T M J J Í X Q P J [ \ X Q P N R VJ I J K L M Q K Z L N Q R M N P Y a e M Q X J M L Q Q I P \ X M Q K J [ Z M J P T R [ X M Q L J K L N d JN R P Z I T L N R V V I Q d J P T M J M J c Z N M J [ aX S J e h Ö e Z J Í L J R P N Q R U N M J P Q X J M T L J T L O N I I N d Q I L I J d J I P ×J Í J M K N P J K T M J U S J R N R P L T I I N R V L S N P P W P L J O L Q J R P Z M J X M Q X J M` Z R K L N Q R a Î J d J M T X X I W X Q U J M Q ` T R W d Q I L T V J I J d J I L Q L S J e h Öe Z J Í L J R P N Q R U N M J P \ T P N M M J X T M T ] I J [ T O T V J U N I I M J P Z I L aÎ J d J M T L L J O X L ` N J I [ T [ ^ Z P L O J R L Q ` L S J Q d J M L J O X J M T L Z M J P J LX Q N R L Ø [ M Q X Q Z L L J O X J M T L Z M J Ù T P L S N P K T R N R N L N T L J [ T R V J M Q Z PQ X J M T L N R V K Q R [ N L N Q R P a X S J Q d J M L J O X J M T L Z M J P J L X Q N R L N P` T K L Q M W T [ ^ Z P L J [ L Q T ` ` Q M [ X M Q L J K L N Q R ` Q M L S J S J T L J M P S J T L S \R Q R O J L T I I N K L T R Y P \ L T R Y I N R N R V P T R [ T Z Í N I N T M W J c Z N X O J R L a� Ú $ " . ¡ Û # U $ ½ % ' Ü * " Ý   # U " ) " . $ º - % - . »

Use only #20 AWG or larger type J thermocouple extension wire when connecting the on-board relay to the power contactor and alarm circuitry to minimize line loss and associated temperature error. Always observe polarity at all connections.

red lead (negative) is wired to J- white lead (positive) is wired to J+

¹ ½ . Þ " % $ T Ò ß Û ½ % T V Ü T � à Ý " % # $ - ½ .ÏRemove thermocouple lead; Figure 7A. ßRemove and retain enable jumper, Figure 7B. àInstall enable jumper at Thermocouple terminals J-

and J+, Figure 7D. áInstall P2 or P1 at Enable Terminals. âVerify conversion before placing heater in service;

perform Converted P3/P3-A Tests. ¹ ½ . Þ " % $ T Ò Ü T Ó Ü T V Ü T � Û ½ % � ½ ½ Ý Â " Þ - U " ( ÏOn the existing enable loop, Figure 7C, disconnect

one leg of the enable circuit. ßInstall any gauge jumper wire across J- and J+, Figure

7E. àTie P2 or P1 into loop, Figure 7E. áVerify conversion before placing heater in service;

perform Converted P3/P8A Tests. á % ½ , â   " ( ã ½ ½ $ - . » # . ¡ á " ( $ - . » T Ò Ü T Ó Ü T Ò ß P3-A electrically latches by a momentary closure of the reset/start terminals. If P3-A unlatches or is prevented from latching, check for these items:

Power interruption (incoming power dropout) An open condition in enable terminals (if used)

P3/P8 thermocouple temperature above set point Broken/open P3/P8 thermocouple or leads

Page 8: Ì Í K M U S I N R O - Harrington Industrial Plastics · Scraping the surface can destroy fluoropolymer sheaths, remove passivation surfaces on metal heaters and chip quartz surfaces

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Reversed thermocouple connection Non-illuminated LED—this does not indicate fault condition. If you apply incoming power prior to depressing the reset button, the LED may or may not illuminate (it is wired in the thermocouple “sense” circuitry). Upon reset, the LED should extinguish and remain off. Steady Illuminated LED During Reset—Upon attempting to reset, if the LED remains illuminated and the P3-A relay fails to latch you probably have an open (bad or broken) connection. Either one or both thermocouple leads are not connected or open, or the P3/P8 thermocouple in the heater is open. P3-A Reset —If the P3-A shuts the controller down after a period of time in operation, and reset attempts result in short time operation only, observe the LED. Prior to reset, an illuminated LED indicates a reversed lead condition or incorrect polarity condition. Examine all connections and correct wiring. Shorted Thermocouple Leads—shorted leads will result in an ambient temperature signal. If undetected, this condition can result in damage to heater and/or damage to the tank. Always inspect for and correct any possible shorted or damaged thermocouple leads. ¹ ½ . Þ " % $ " ¡ T Ò Ü T Ò ß á " ( $ (

Complete tests before placing heater in service: ÏEnsure control set point is above current tank

temperature. ßTurn ON control and press RESET/START. The

control alarm should silence and the HEATER ON light should illuminate. à

If control does not function as described, turn OFF

and recheck wiring. ensure P2 or P1 is wired to enable terminals ensure enable jumper is connected to J- and J+ with correct wiring and jumper connections verified, repeat step 2 If you successfully perform step 2, continue to step 4 áTurn OFF power and remove one of the Protector

leads connected to enable terminals. âTurn ON control and press RESET/START. îThe control alarm should remain in alarm mode and

the HEATER ON light should remain extinguished.

ïIf the HEATER ON light is illuminated and/or the

control alarm is not in alarm mode, verify at least one lead is disconnected from the enable terminal and repeat step 4 ð

If the control alarm remains in alarm mode and the HEATER ON light remains extinguished, reconnect Protector leads to enable terminals. �

Consult factory for further corrective action. Ï �When you successfully complete the tests above,

verify wiring for tight connections and place heater into service.

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