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These instructions contain operating information and should be left with the unit. 

 
 
 
 
 
 

 
 
 

 
 
 

 

LEC Electrode Boiler Units

 

 

Installation & Operation Manual 

 

Edition 1.1 

 
 

 
 

 
 
 
 
 
 
 
 
 
 
 

Installation in countries covered by EC Directives: 

This product meets the requirements of the RoHS Directive 2002/95/EEC 

This product will meet the requirements of the Low Voltage Safety Directive 2006/95/EEC and the 
EMC Directive  2004/108/EEC when installed in accordance with the instructions contained in this 

manual. 

Failure to comply with these instructions may invalidate the manufacturer's warranty or any 

certificate/declaration of conformance requested to be supplied with the unit. 

 

Summary of Contents for LE09

Page 1: ...s the requirements of the RoHS Directive 2002 95 EEC This product will meet the requirements of the Low Voltage Safety Directive 2006 95 EEC and the EMC Directive 2004 108 EEC when installed in accordance with the instructions contained in this manual Failure to comply with these instructions may invalidate the manufacturer s warranty or any certificate declaration of conformance requested to be s...

Page 2: ...al Control 12 1 6 3 Control Signal Selection 12 1 6 4 On Off Control 12 1 6 5 Sensing Head 13 1 6 6 Security Circuit E P O Shutdown 13 1 6 7 Load Shed Option 13 1 6 8 Master Slave System 14 2 0 Start Up Operation 14 2 0 Start Up Operation 15 2 0 1 Start up check list 15 2 0 2 Start Up Instructions 15 2 0 3 Commissioning Start Up 15 2 0 4 Features of VAPANET Electode Boiler Unit 15 2 1 Service Advi...

Page 3: ...t the terminals and contactor are tight Check that the transformer primary winding connection is correct for the supply voltage at Vapac terminals A1 A2 The Vapac transformer must not be used to power other equipment To comply with EMC aspects see recommendations on page 10 Use a high limit humidistat to ensure positive interruption of unit operation when over humidification is detected See page 1...

Page 4: ...t the unit in position Don ts Don t mount the unit close to sources of strong electro magnetic emissions e g variable speed lift motor drives kVa transformers etc Don t mount the unit in an unventilated enclosure Don t mount in a position requiring ladder access to the unit Don t mount the unit behind a false ceiling or other situation where an unusual malfunction e g water leak would cause damage...

Page 5: ...Plate 120 X 120 Gland Plate 120 X 120 Left Top View Showing Steam O let position Below Rear View showing wall mounting points Left Bottom View Showing F Feed connection BSP male connection for flexible hose provided with unit D Drain connection 35 mm pipe NB Entry hole for gland plates is approx 105 mm x 90 mm For clearance around the unit for ventilation and access see page 7 ...

Page 6: ... unit of 300mm Do use the full height available between the unit and steam pipe to provide maximum slope min 12 20 for condensate to drain back to the steam cylinder or down to a condensate separator Always provide a continuous slope Do provide adequate support to prevent sagging a fit pipe clips every 30 50cm or b support straight lengths on cable trays or in heat resistant plastic pipe Do ensure...

Page 7: ...hand to effect a seal If water seepage occurs undo the nut to wipe the washer clean and re seat it 1 3 2 Drain connection General Do s Do ensure metal drain and supply water pipework is grounded electrically close to the unit a ground earth stud is positioned on the underside of the cabinet Drain capacity per cylinder pump discharge rate of max 16 8 l min at 50 Hz Power supply 17 2 l min at 60 Hz ...

Page 8: ...osition marked with the supply Voltage that is to be connected between VAPANET power terminals A1 and A2 The transformer primary circuit terminal positions are clearly marked 200V 230V 380 415 440V If the actual measured site voltage is 400v the preferred tapping is 380V The transformer is fitted below the Drain tray and is accessible by removing two screws and the cover which should be slid it to...

Page 9: ... 547 Normally open when unit is in standby or fault not running If the unit is part of a master slave system or network the run fault outputs can be selected via keypad display as either network system or unit only This is selectable at Service Engineers Level in the Engineering Menu in the window Fault Run Scope The default is network It is possible to get both alarm Run indication in all units S...

Page 10: ... used to ensure cables are held securely at the entry position All Vapac cabinets are equipped with a removable gland plate The installing electrician should remove this and take it to a work bench to drill for the required cable gland size 1 4 5 Vapac Control Circuit Transformer The internal control circuit of the Vapac unit operates at 24Vac the transformer secondary is set at 24V As standard th...

Page 11: ...Ph 3Ph 3Ph 3Ph 3Ph 3Ph 3Ph No of electrodes 3 3 3 3 3 3 6 6 3 3 3 3 Full load Current per cylinder A 46 5 40 5 24 5 23 5 22 5 21 5 78 68 41 39 37 5 35 5 Maximum overcurrent per cylinder A 53 475 46 575 28 175 27 025 25 875 24 725 89 7 78 2 47 15 44 85 43 125 40 825 Number of cylinders supply 2 2 2 2 2 2 2 2 2 2 2 2 2 Supplies Fuse Rating phase A 50 50 32 32 32 32 100 80 50 50 50 50 Supply cable te...

Page 12: ... by either a potentiometric signal a lonworks network signal or by one of 6 standard proprietary DC analogue signals Input signal Potentiometric control 0 5V 0 10V 0 20V Actually 0 18V not phase cut 2 10V 1 18V 4 20mA Ensure jumper J1 is in place Network Slave unit demand generated by Master Response 8 100 1 6 3 Control Signal Selection Selection of the control signals is done a part of the initia...

Page 13: ...9 10 will prevent any unit operation including frost protection 1 6 7 Load Shed Option This can only be evoked via a display either hard wired or hand held When this option is selected making the connection between terminals 11 12 will activate the load shed software routine which will inhibit the operation of either the unit or in the case of twin cylinder units unit or just the 2 nd cylinder Thi...

Page 14: ... in each unit of the system including the master Ö xxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx Õ Esc Ø Vapac J2 Vapac part no 1150631 CR1 Net J1 Vapac PART No 1150630 16 CR6 1 Net CR7 J6 J5 CR5 1 6 6 10 CR3 16 J1 J2 J3 1 F2 CR1 1 F1 CR2 J4 1 8 CR4 1 16 Vapac PART No 1150630 16 CR6 1 Net CR7 J6 CR5 1 6 6 10 CR3 16 J1 J2 J3 1 F2 CR1 1 F1 CR2 J4 1 8 CR4...

Page 15: ...e procedure by selecting the preferred language Attaching the control PCB to the Display nominating the type quality of the supply water nominating the control signal or Vapac sensor when being used When the control signal has been nominated the Set Up will be entered into the memory The Set Up can then be checked by reading the information menu If an error has been made it will be necessary to go...

Page 16: ...hose clip 1 and disconnect the steam hose 4 from the top of the cylinder 6 Using a twisting movement lift the cylinder clear of its seating in the feed drain manifold and carefully remove the used cylinder from the unit 7 Inspect the feed drain manifold to ensure to ensure this is clear of sediment 8 The drain pump can be removed for inspection and cleaning by following the instructions below 9 Wi...

Page 17: ...follows Turn off the water supply to the Unit Undo the nylon nut connecting the flexible connection to the valve inlet The strainer can be removed using long nosed pliers to grip the centre flange provided on the strainer for this purpose Withdraw the strainer Wash and replace it Reconnect and turn on water supply Reconnect electrical supply to allow unit to operate Note Always replace the straine...

Page 18: ...1 User LED 2 Description OFF OFF Cylinder 1 and Cylinder 2 in shutdown Or Cylinder 1 in standby and Cylinder 2 in shutdown OFF RED Flashing 1 second period Cylinder 1 and Cylinder 2 in standby Green Amber Flashing Red Flashing Both red and green Amber LED flash at Variable Period or on as per table Green Amber Flashing Red Flashing Both red and green Amber LED flash at Variable Period or on as per...

Page 19: ... 0 50 Timed Drain down Used to drain all the water from the cylinder if the unit remains on standby for longer than a preset but adjustable time period For information on setting these options please see the display manual 1 2 Network LED Red User LED2 Red Amber Green Network Button Service Pin User LED1 Red Green Amber Unit Off Over Service Interval Service Routine Manual Service Routine Manual C...

Page 20: ... operational level of water in the cylinder Switch unit on and check that the display indicates Vapac on line Apply the voltmeter set to the ful line Voltage across the output terminals of the SSR being tested i e the two terminals carrying the cabling to the elements Correct Voltmeter Response oscillating between full and near zero Voltage If Voltmeter reads a constant near zero Volts Check a Tha...

Page 21: ...5 A3 A1 2A Net CR1 CR4 v 0v 2 3 8 9 6 4 5 7 CR6 9v AC Fused Supply Part Number 1150631 1 Blue 1 Brown 2 Blue 2 Brown TO SHEET 3 of 3 SEE NOTE 1 BLUE RED 70 VA Auto wind TAPPING IS A 230 VOLT Red 9v AC 0v AC 24v AC J1 CLOSED CIRCUIT HUMIDITY SIGNAL 4 20 mA J1 OPEN CIRCUIT HUMIDITY SIGNAL 0 10 volts Temp R H SENSOR AI 1 ref AI 1 5v DC 0 v DC 0 v DC 5v DC AI 1 ref AI 1 Red LINK TERMINALS 5 AND 7 LINK...

Page 22: ... dc feed DO 6 DI 6 CYL 2 SSR LEC 9v dc feed DO 5 DI 5 CYL 1 SSR AI 1 V or mA INPUT Demand POT 0v dc Demand POT 5v dc AI 2 CYL 1 CURRENT INPUT AI 1 Ref AI 2 Ref Black Red Black Red White Violet Red Black Red SWITCH SWITCH Pink Pink Pink CYLINDER 2 CONTROL CYLINDER 1 CONTROL OFF ON RUN DRAIN DI 9 CYL 2 CYLINDER FULL THERMISTOR INPUT THERMISTOR INPUT AI 3 CYL 2 CURRENT INPUT AI 4 SUPPLY VOLTAGE DI 8 ...

Page 23: ...White Pink Pink Violet Pink Pink Pink Violet Pink Pink ANALOGUE INPUT 8 0v COM AI 8 ANALOGUE INPUT 7 0v COM AI 7 ANALOGUE INPUT 6 0v COM AI 6 0v COM AI 5 ANALOGUE INPUT 5 Bond Earth 0V Control Fuse Violet Pink White Pink Violet Violet Pink Control Fuse Pink Violet Pink Violet Pink Pink Pink Pink LZD 562 SEE DRAWING or 561 LZD 559 560 SEE DRAWING Pink TO SHEET LZD 558 1 OF 3 Solenoid Valve Water CY...

Page 24: ... Yellow 26 Blue LE05P and LE09P A1 Ph 1 A2 Ph 2 or N Three Electrode E1 E2 E3 cylinder for SINGLE CYLINDER UNIT LE18 LE30 high voltage TWIN CYLINDER UNIT LE60 High voltage cylinder 1 CONNECTED TO A3 FOR 200 240 V 3 Ph CONNECTED TO N FOR 380 440V 3 Ph SUPPLY 26 Blue TERMINAL 26 NEUTRAL FOR RDU ONLY NEUTRAL ONLY REQUIRED WHEN Low voltage less than 380 High voltage is greater than or Equal to 380 vol...

Page 25: ...voltage and LE60P low voltage SUPPLY DETAILS PLEASE REFER TO FOR ELECTRICAL LOADS AND POWER THE VAPENET LE OPERATION AND MAINTENANCE MANUAL latest Edition CONNECTED TO N FOR 380 440 V 3 PHASE SUPPLY CONNECTED TO A3 FOR 200 240 V 3 PHASE SUPPLY Neutral Earth Supply A 3 Phase and LE90P high voltage cyllinder 1 of unit LOW VOLTAGE AND LE45P HIGH VOLTAGE SINGLE CYLINDER UNIT AND LE45P LE60P LOW VOLTAG...

Page 26: ...PLY DETAILS PLEASE REFER TO FOR ELECTRICAL LOADS AND POWER THE VAPENET LEC OPERATION AND MAINTENANCE MANUAL latest Edition Neutral Earth Supply A 3 Phase LOW VOLTAGE AND LEC45 CYLINDER 2 VAPAC SIX ELECTRODE CYLINDEDR POWER CONNECTION WIRING DIAGRAME FOR LEC30 2 3 Electrode E1 E2 OR E1 E2 E3 for twin cylinder units Cylinder 2 YELLOW BLUE RED Yellow Yellow EMC Filter Earth Violet Violet Black Red 91...

Page 27: ...30 LV LEC45 CABLE SIZE in mm2 TRI RATED CABLES SUPPLY DETAILS PLEASE REFER TO FOR ELECTRICAL LOADS AND POWER THE VAPENET LEC OPERATION AND MAINTENANCE MANUAL latest Edition Neutral Earth Supply A 3 Phase LOW VOLTAGE AND LEC45 CYLINDER 2 VAPAC SIX ELECTRODE CYLINDEDR POWER CONNECTION WIRING DIAGRAME FOR LEC30 Six Electrode E1 E2 E3 E4 E5 E6 cylinder for Cylinder 2 YELLOW BLUE RED YELLOW BLUE RED Ye...

Page 28: ... constricted leading to excessive pressure in the steam lines N B Standard steam distribution pipes are manufactured such that any condensate is drained back towards the Vapac steam cylinder Reverse slope pipes are available and are fitted with a drain connector to enable condensate to be taken away to a suitable drain min 300mm R B L H min 20mm L B H min 20mm B L R min 20mm X Y Y X min 20mm AIR F...

Page 29: ... indicates that a reverse slope steam pipe is required This is fitted with a drain point to allow condensate to be taken away to a convenient drain Figure 2 shows recommendations on how to space one or more steam pipes in a horizontal duct Figure 3 shows recommendations on how steam pipes should be spaced in a vertical duct Figure 4 shows mounting details for 35 and 54 Ø steam pipes NB The duct sh...

Page 30: ...ondensate drain connection 3 Care should be taken to support steam hose sufficiently such that no kinks are formed which would flood with condensate causing the bore of the tube to become constricted leading to excessive pressure in the steam lines 4 The duct should be clear of obstructions transformations and bends until the steam has been absorbed into the airflow Vapac Humidity Control Ltd Sugg...

Page 31: ...1 Made in England by Vapac Humidity Control Ltd June 2004 Vapac Humidty Control Ltd reserve the right to change the design or specification of the equipment described in this manual without prior notice ...

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