Installation and Operating Instructions -Heat Recovery System-
Contents
1. dismantle riser tube LJ 23 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 25 13 12 11 14 46 9 3 Installation of physical water conditioner High carbonate hardness of the water in conjunction with raised water temperatures may call for the fitting of a physical water conditioning unit in the cold water inlet leading to the heat exchanger see pic 11 12 to prevent premature calcification CRYSTALLIZER Water exchanger 200 inlet O Operation O Malfunction Installation location of water conditioner water outlet air bleed JW dM ic 12 f r refrigerant Ple Q inlet water conditioner refrigerant outlet O Correx thermo stat installation option for 7 CRYSTALLIZER 1 water inlet according to EN1717 DIN 1988 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 26 13 12 11 14 46 Cooling Heating Innovation 10 Troubleshooting Correx current anode Light Cause remedy green operational control protection against corrosion not lit no protection against corrosion no supply voltage re connect supply voltage supply voltage indicator connector potentiostat defective exchange connection potentiostat as soon as possible flashes red malfunction indicator no protection ag2. uonoejoud 24 ay JO sued ey sueaw q esnj jonuo 24 jjeoujoeje Aq eu peo 14 0 9 MA 5 MA 0 iz 58 T Tos xall09 xall09 Joy Janno Joy eng L jooid yoous jooid yoous ig 8 souen souen 0 0 uonoejoud wayar O D weuev O Ed SEI 14 46 13 12 11 iring N e a a ZHOS AO Z O0v 3d N E si vi D s 2 12 W geanleitung_Waermerueckgewinnung_GB indd 30 11 0000 Monta Cooling Heating Innovation 13 Wiring proposal for Legionella kill unit Legionella kill unit with electrical heater warm water OUT overheating prevention _ thermostat xor thermometer for electrical heater TH TL electrical heater including fitted J timer thermostat N A 1 SA j circulation pump return flow stop AN N cold water IN 29 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 31 13 12 11 14 46 11_0000_Montageanleitung_Waermerueckgew
3. e Overheat protection Uermostat 530008 Boiler thermostat c c cccccssccissssesscecsansscavessisessrscsenteveses 530001 26 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 28 Gasket for shell and tube heat exchanger TYPE Order No S 10210 S 10211 S 10212 S 10212 S 10213 S 10214 S 10215 5 10216 S 10217 Comment front fitting front fitting front fitting front fitting front fitting fitted from below handhole fitted from below handhole fitted from below handhole front fitting fitted from below handhole front fitting nominal diameter 13 12 11 14 46 ZZ ZZ Cooling Heating Innovation warm water warm water outlet thermometer overheat cireutetion 4 outlet thermometer circulation protection thermostat overheat only for protection electrical heater thermostat only for e g Correx With 2 probes for eon ger 2 5m2 for using surplus energy or load circuit flow for after heating inlet electrical heater electrical heater if required H e g Correx B with 2 probes load circuit flow inlet Jet socket holder for external electrical heater tubular if required heat exchangers heat exchanger for PWW 22mm 2 5m with vent al load circuit flow for heating load circuit flow thermostat drinking water re gt magnesi
4. 531907 120 mm round from model year of mid 2011 531909 gasket 110 mm round from model year 2006 531907 120 mm round from model year of mid 2011 531909 if magnesium anode is present Hand hole gasket 80 120 mm before model year 2005 100 150 mm before model year 2005 Handhole gasket oval 80 120mm Handhole gasket oval 100 150mm Manhole gasket DN 450 Manhole gasket DN 500 ge Flange plate DN 200 enamelled Handhole cover 80 120 enamelled Handhole cover 100 150 enamelled Thermometer 80 mm 0 bis 120 C Titanium rod probe Correx Connector potentiostat for Correx Flange cover DN 100 831651 Flange gasket DN 100 ene 531620 Magnesium reactive anode for Heat Recovery 50 1 0 22mm L 400 mm 3 4 531100 120 1 22mm L 400 mm 3 4 200 1 33mm L 400 mm 1 1 4 300 1 33mm L 600 mm 1 1 4 500 1 33mm L 600 mm 1 1 4 300 4 33mm L 550 mm 12 500 4 33mm L 735 mm M12 750 5 33mm L 550 mm M12 Se 33mm L 400 mm 1 LA e 1000 5 33mm L 735 mm M12 33mm L 600 mm 1 1 4 Thermostat for screwed radiators
5. Exeter 22 Maintenance e Ie Hee Hie 22 Maintenance of water relief valve sese 23 Maintenance of heat exchanger eee 23 Installation of physical water conditioner sss 24 Trouble shooting Correx external current anode 25 Trouble shooting pumps s orescence nresep srei 25 Spare parts list een tenere 26 Wiring diagram nennen 28 Wiring diagram of legionella kill unit 29 11 0000 Montageanleitung Waermerueckgewinnung GB indd 3 13 12 11 14 46 1 Safety notes Please observe the following for your personal safety as well as for the maintenance of your warranty Bl The electrical installation as well as the assembly and starting of the refrigeration system may only be performed by trained licensed experts Such installation staff must observe the generally applicable regulations for the prevention of accidents by VBGA German professional association for Electrical Plants and Equipment as well as all applicable VDE regulations Repair work which exceeds the maintenance work stipulated in this technical documentation must only be carried out by qualified experts For this please refer to your refrigeration expert The electrical installation must be carried out according to the connection diagram E Maintenance work
6. M Cooling Heating Innovation Installation and Operating Instructions Heat Recovery System Issue 01 2012 DIN EN ISO 9001 11 0000 Montageanleitung Waermerueckgewinnung GB indd 1 13 12 11 14 46 With this Heat Recovery System you have purchased a DK quality product Heat Recovery Systems by DK are manufactured according to the relevant standards and recommendations Each unit is carefully inspected and all components undergo compression trial which al lows us to supply you with a reliable system A long and trouble free service life requires an expert installation and commissioning of the unit For your own benefit the following assembly notes should be closely observed The documentation in your hand complies with state of the art technology available at the date of issue The manufacturer reserves the right to perform technical alterations according to the further development of the product All water and brine tanks which were delivered by DK are pressure equipments Those tanks with a max operating pressure of 10 bar are according to pressure equipments directive below the limit values please see equipments directive 97 23 0 article 3 1 to paragraphs 1 1 to 1 3 and paragraph 2 Therefore a CE marking is not necessary We wish you a successful application of your DK Heat Recovery System DK K lteanlagen GmbH D 48282 Emsdetten 11_0000_Montageanleitung_Waermeruec
7. In your own interest please observe that any required repair work within the warranty period may exclusively be performed by a servicing facility authorized by DK Kiltenanlagen GmbH This ensures your warranty rights Repair and maintenance work on electrical and refrigeration equipment must only be carried out by licensed refrigeration companies For this please refer to your refrigeration specialist 11 0000 Montageanleitung Waermerueckgewinnung GB indd 5 13 12 11 14 46 3 Vessels with internal heat exchangers 3 1 Fitting and installation The installation site should be protected against frost and be equipped with a floor drain The DK Heat Recovery System is a special boiler enamel vessel fitted with a cathodic protection against corrosion The vessel s strong design ensures that during normal handling the internal thermo glazing is not damaged It must be observed that the equipment is not exposed to hard concussions e g by placing it hard on one foot during unloading Before starting with the connection of the water carrying or refrigerant carrying connections dismantle insulation The insulation comprises 2 PU shells with glass fibre reinforced plastic coating The two shells are fixed with quick acting closures 2 for tanks with a capacity up to 7501 3 for tanks with a capacity up to 10001 The quick acting closures can be opened with an 8 mm Allan key Before removing the fr
8. The respective instructions can be obtained from the manufacturer and are also supplied with the spare parts delivery Bottom of vessel Welded nipple H Threaded brass joint Union nut poss tighten Outer tube ribbed Inner tube smooth pic 2 10 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 12 13 12 11 14 46 Cooling Heating Innovation 3 3 Corrosion Protection The DK Heat Recovery System is equipped with anodes for cathodic protection against corro sion Mg anode or Correx current anode Magnesium reactive anodes must be serviced every other year see label on tank CORREX current anodes are maintenance free and must be hooked to a 230 V outlet AN The supplied double wire line between the screwed CORREX anode and the separately supplied connector potentiostat must by no means be extended The possible reversal of polarity may lead to an accelerated corrosion In any case a 230 V power outlet should be in the immediate proximity of the tank Electronic long duration anode the maintenance free corrosion protection for enamel storage heat recovery exchanger as per DIN 4753 part 3 and part 6 CORREX UP the cur rent anode for multi purpose application in enamel storage tanks of all sizes CORREX UP long term solution for corrosion problems 11 11_0000_Montageanleitu
9. a hemp package may damage the enamel in the connecting nipple Water connections must be carried out according to EN 1717 DIN 1988 and local regulations i e a safety relief valve must be installed in line with permissible operational excess pressure of the vessel without shut off option towards the same Standard operation excess pressure is 6 bar see pic 1 Connection diameter of safety valves min connection max heating capacity pic 1 DN 15 75 kW DN 20 safety valve DN 25 250 kW PSS safety group complete The exit side of the safety valves must be at least one nominal width larger than that of the entrance side The blow out side must have at least the dimension of the safety valve exit profile yet may not have more than 2 curves and must not exceed 2 m in length see DIN 4753 part 1 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 8 13 12 11 14 46 m Cooling Heating Innovation If the admission pressure is higher than the tank s permissible operational excess pressure the cold water pipe must be fitted with a pressure reducing valve DK offers the water safety armature in compliance with such demands This armature is fitted to the cold water inlet The heat exchangers of the DK Heat Recovery System are fitted with a brass compression ring connection in the lower part of the tank and have been tested as to closeness at factory The circulation
10. and anode mud from the tank To do so empty the tank 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 24 13 12 11 14 46 Cooling Heating Innovation 9 1 Maintenance of water relief valve During the operation of the plant the operational control is to be verified at regular 6 monthly intervals by checking the responsiveness of the water relief valve It is to be observed whether the valve closes again after release of venting equipment and whether the collected water drains completely via the funnel or the blow off valve 9 2 Maintenance of the heat exchanger Rinse with chemical decalcifiers Reduced performance after years of operation may be caused by impurities in the heat exchanger calcification mudding The heat exchanger can be cleaned with chemical agents without having to dismantle the system First drain the water Please observe the regulations by the manufacturer of the cleaning agent see pic 9 pic 10 For external tubular heat exchangers flushed connection flushed connection Please ask for detailed cleaning and flushing instructions from the manufacturer H For fitted heat exchangers cleaning N agent 5 S flushing pump pic 9 connection in casing flushing pipe of heat exchanger ET s 1 int thread first
11. on the electrical unit is only permissible if disconnection of plants is secured DK K lteanlagen GmbH can not be held liable for any damage caused by inappropriate handling or unauthorized intervention inflicted in particular on the electronic and electrical as well as refrigerating functional assemblies The commissioning of the heat recovery system may exclusively be carried out by such persons entitled to do so and who are familiar with these installation and operating instructions with regard to the proper use of the same Knowledge of the relevant regulations for the prevention of accidents as well as other generally acknowledged instructions for technical safety is prerequisite When cleaning the plant please observe that water does not come into contact with any electrical functional assemblies which do not at least comply with a protective system of IP 55 When using cleaning agents and disinfectants please observe the manufacturers safety instructions carefully 2 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 4 13 12 11 14 46 Bee Cooling Heating Innovation The texts used in this documentation graphically emphasise instructions and notes subject to particular caution points out that non observance may lead to personal injury or damage of the technical equipment n provides useful information concerning regulatory application or maintenance of the product s service value 2 Service
12. ach the set temperature Should the hot gas temperatures fall for example in winter it is possible that if the temperature control is set too high the water is pumped into the bypass and that no water is pushed into the vessel Temperature increments equal 5 C from digit to digit Ziffer Temperatur 1 40 C 2 45 C 3 50 C 4 55 C 5 60 C 6 65 C 7 70 C 21 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 23 13 12 11 14 46 7 Closing down DK Heat Recovery System drinking water storage with built in CORREX current anode may only be disconnected after the water has been emptied from the tank 8 Re starting When re starting after having interrupted operation it is usually sufficient to completely open the individual points of outlets for a short time approx 5 minutes in order to drain residual water in the pipes Re start plant according to instructions in paragraph 6 9 Maintenance DK s enamelled Heat Recovery Systems which are equipped with CORREX external current anode do not require maintenance Please observe the green control lamp which should be lit If the red light flashes please consult paragraph 10 troubleshooting For fitted magnesium reactive anodes maintenance should be performed on the Heat Recovery System every other year If the anode is worn by more than 50 exchange Within the framework of this maintenance work we also recommend removing deposits
13. ainst corrosion no water in tank fill with water connecting wires reversed see instructions for CORREX anode wiring connection from connector potentiostat to anode rod interrupted re connect check polarity wiring connection from connector potentiostat to ground tank interrupted check cable lugs for contact and corrosion anode has contact to fittings in tank and therefore to ground disable connection to ground and return electronics by quick pulling of the plug 10 1 Malfunction overview of pumps Malfunction Cause remedy pump does not start defective current supply check fuses and possible loose clamps defective condenser exchange condenser pump inhibited by residues in the bearings unlock rotor insert screw driver in slot and turn manually pic 10 p 16 dirty pump dismantle pump and clean it plant makes noise air in plant vent plant disconnect plant for this pump makes noise air in pump e vent pump o admission pressure too low increase admission pressure See also regulations by manufacturers 25 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 27 13 12 11 14 46 11 Spare parts list Designation of part Order no exchangers Flange gasket DN 200 S31600 Flange gasket DN 140 531610 gasket 110 mm round from model year 2006
14. ar The exit side of the safety valves must be at least one nominal width larger than that of the entrance side The blow out side must have at least the dimension of the safety valve exit profile however may not have more than 2 curves and may not be longer than 2 m see DIN 4753 part 1 The heat exchangers of the DK Heat Recovery System are fitted with a brass compression ring connection in the lower part of the tank and have been tested as to closeness at factory 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 11 13 12 11 14 46 H For certain vessel types the water in and water out connection are located to the bottom of the tank The cold water connection is marked in blue the warm water connection in red It is possible that due to the transportation the Cu heat exchangers have settled so that closeness of the vessel is no longer provided under water pressure In such a case the respective union nut must be tightened see pic 2 To connect a circulation line electrical heater or further heat exchangers loosen the brass stoppers or cap on the tank These have been affixed with liquid sealant and can only be removed after increasing the temperature to above 120 C hot air dryer or soft gas jet In certain cases suitable holes and cut outs has to be create in the insulation after installation the fitted component See also assembly instructions for respective components
15. connection to the cold water inlet interrupts the water layer principle For certain vessel types the cold water and warm water connection are located to the bottom of the tank The cold water connection is marked in blue the warm water connection in red It is possible that due to the transportation the Cu heat exchangers have settled so that closeness of the vessel is no longer provided under water pressure In such a case the respective union nut must be tightened see pic 2 To connect a circulation line electrical heater or further heat exchangers loosen the brass stoppers or cap on the tank These have been affixed with liquid sealant and can only be removed after increasing the temperature to above 120 C hot air dryer or soft gas jet In certain cases suitable holes and cut outs has to be create in the insulation after installation the fitted component See also assembly instructions for respective components The respective instructions can be obtained from the manufacturer and are also supplied with the spare parts delivery Bottom of vessel f nipple Threaded brass joint Union nut poss tighten __ Outer tube ribbed Inner tube smooth pic 2 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 9 13 12 11 14 46 Permanent water circulation due to special counter flow heat exchanger RESULT Excellent wate
16. cumstances be closed 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 16 13 12 11 14 46 Cooling Heating Innovation 4 Vessels with external double wall heat exchangers 4 1 Fitting and installation see notes item 3 1 4 2 Water connection tank see notes under item 3 2 4 2 2 Water connection in tubular heat exchangers Tubular heat exchangers tubular compressors tubular desuperheaters which are not mounted to the tank by DK must be connected on location to water pic 7 safety valve 7 16 nn for leak indicator refrigerant in flushing connection con nection for safety valve Water He let outlet H water wi inlet flushing con ST safety valve 7 16 pic 7 connection for leak indicator refrigerant outlet The water inlet is marked in blue the water outlet is marked in red 15 11 0000 Montageanleitung Waermerueckgewinnung GB indd 17 13 12 11 14 46 The DK tubular desuperheaters tubular compressor is a water heating system which according to DIN 4753 and EN 1717 DIN 1988 must be equipped with a structural test safety valve on the water carrying side The safety valve must be arranged in the cold water lead and must remain open to the heater For connection dimensi
17. ead to the heat exchanger inlet or outlet it must be observed that the brass compression ring screwing connection which fits the heat exchanger to the vessel is not overheated This may damage the sealing pic 6 H To connect a circulation line electrical heating or further heat exchangers loosen the brass stoppers or covers on the tank These have been affixed with liquid sealant and can only be removed after increasing the temperature to above 120 C hot air dryer or soft gas flame See also assembly instructions for respective components The respective instructions can be obtained from the manufacturer and are also supplied with the spare parts delivery 3 4 1 double walled Heat Exchanger For heating drinking water the DK Heat Recovery System as a rule uses double walled tubular heat exchangers As a leak indicator capillary tubes with safety valve Schrader valve in twin nipple 7 16 are soldered at the inlet and outlet of the heat exchangers into the spacing and outlet of the heat exchangers The conventional dimension used in the refrigeration industry does not apply to the refrigerant connection but serves only as leakage indication of the double walls If any liquid run out the outlet the heat exchanger is defective In such a case an expert must be instantly called to the site and must carry out a pressure test according to DIN 1988 part 8 The safety valve must under no cir
18. innung_GB indd 32 13 12 11 14 46
19. kgewinnung_GB indd 2 13 12 11 14 46 Cooling Heating Innovation Table of Contents 3 1 3 1 1 3 1 2 3 2 3 2 1 3 2 2 3 3 3 4 3 4 1 4 1 4 2 4 2 2 4 3 4 4 4 4 1 Safety notes EE 2 E a 3 Vessels with double wall internal heat exchangers Fitting 4 Mans water vessels eier Heating water vessels en iR 9 Water connection tank oo 6 Mains water Vessels un esse nl 6 Heating water Vessels u een 9 Corrosion protection 5 anu este E Eee eke tien 11 Refrigerant connection nennen 12 Double walled tubular heat exchangerg 14 Vessels with double wall external heat exchangers Fitting and installation uge give 15 Water connection tank 15 Water connection heat exchanger sese 15 Corros1on Protect ON RS 17 Refrigerant connection iiie eese nett iere EEN EES 17 Refrigerant connection for double walled tubular heat exchangers 17 Electric connection remet tore en 18 Commissioning of unit esee 19 Installation of the temperature control for the 3 way valve 21 Setting the temperature control sess 21 Closing down of unit 22
20. manufacturers of the valves 4 4 1 double walled shell and tube Heat Exchanger For heating drinking water the DK Heat Recovery System as a rule uses double walled tubular heat exchangers As a leak indicator capillary tubes with safety valve Schrader valve in twin nipple 7 16 are soldered at the inlet and outlet of the heat exchangers into the spacing an outlet of the heat exchangers 17 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 19 d 13 12 11 14 46 The conventional dimension used in the refrigeration industry does not apply to the refrigerant connection but serves only as leakage indication of the double walls If any liquid run out the outlet the heat exchanger is defective In such a case an expert must be instantly called to the site and must carry out a pressure test according to DIN 1988 part 8 The safety valve must under no circumstances be closed To improve the transition of the heat the inner and the outer tubes are expanded on one another The safety chamber is not filled with a carrying medium so that it is possible to start refrigeration before connection with water 5 Electric connection H The charge pump integrated into the water circulation must be carried out according to local EVU regulations and VDE 0100 The charge pump should be controlled via the condenser and via the thermostats located in the lower part of the tank The instructions in the installati
21. ng_Waermerueckgewinnung_GB indd 13 13 12 11 14 46 5 reliable long term protection exact regulation of protective current no over protection risk of electrolytic gas no consumption of anodes no creation of anode mud no maintenance visual operational control VDE GS SEV tested safety for long storage service life 3 4 Refrigerant connection The hot gas lead from the condenser to the heat exchanger inlet must be sufficiently fastened If the refrigeration compressor is exposed to unsuitable operational circumstances pulsation impact suitable measures should be taken to dampen vibration Due to the design of the heat exchangers in the DK heat recovery units finned tube in PE housing a muffler is not necessary in most cases 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 14 12 13 12 11 14 46 Cooling Heating Innovation AN With longer hot gas leads which are not suitably fastened the vibrations are transmitted by the lead to the compression ring screwing in the lower base of the vessel The stiff positioning may entail cracks located immediately at the front of the screwing The hot gas inlet is marked in red the refrigerant outlet is marked in green Soldering the refrigerant connections 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 15 13 12 11 14 46 AN When soldering the refrigeration l
22. on manual of the pump manufacturer must always be observed See therefore the installation manual of the pump manufacturer Risk of electrocution Before working on the pump be sure to disconnect all phases of the supply voltage Due to residual hazardous high touch voltage condensers please wait five minutes after disconnection before starting work on the module perform only with AC Voltage 1 configuration Check if all connections even zero potential contacts are neutral 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 20 13 12 11 14 46 Cooling Heating Innovation 6 Commissionning of unit AN The DK Heat Recovery System may only be started after having been completely filled with water and after thorough ventilation Fill tank with water while switched off while emptying at the highest bleeding point e Check for leaks possibly tighten screwed connections e Close the bleeding point once the air has been completely removed from the tank Before starting and at regular intervals check the functions of the CORREX external current anode for this see also paragraph 3 3 page 11 For rotary current plants please observe the correct rotating sense For this observe indicating arrows on the devices 6 1 Initial Operation of Pump When operating 3x400V three phase current pumps please observe the pump s sense of rotation Ho
23. on see pic 1 p 6 Design of safety valve and of blow out lead see 6 Installation suggestion warm water circulation thermometer overheat protection thermostat only for electrical heater e g Correx with 2 probes refrigerant electrical heater if required DK heat recovery system buffer three way valve refrigerant Correx Lt thermostat charge pump blue expansions tank Ar K D I cold water in according to EN1717 EN12897 16 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 18 13 12 11 14 46 Cooling Heating Innovation 4 3 Corrosion protection see notes under item 3 3 page 11 4 4 Refrigerant connection The hot gas inlet is marked in red the refrigerant outlet is marked in green see pic 7 page 15 The hot gas lead from the condenser to the heat exchanger inlet must be sufficiently fastened If the refrigeration compressor is exposed to unsuitable operational circumstances pulsation impact suitable measures should be taken to dampen vibration The water carrying tubes between vessel and heat exchanger are fitted with a temperature dependent controlled water valve in certain units This valve is not pre set by the factory Any alterations must be carried out in line with the respective notes of the
24. ont insulation withdraw the thermometer from the immersion shell As an alternative the DK Heat Recovery System is available with flexible foam insulation which is closed at the back of the tank with a strap If the tanks are bigger the insulation can be delivered in several pieces 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 6 13 12 11 14 46 Cooling Heating Innovation 3 1 1 Mains water tank The DK Heat Recovery System is a special boiler enamel vessel fitted with a cathodic protection against corrosion The vessel s strong design ensures that during normal handling the internal thermo glazing is not damaged A No welding work may be performed to enamelled tanks 3 1 2 Hot water tank heating The DK Heat recovery System is raw black tank for heating purposes in a closed system This tank DOES NOT HAVE a cathodic protection against corrosion If the heating system is fitted with pipes and components which are not diffused oxygen tight the tank has to have an anti corrosion coating or the water has to be added with suitable corrosion protection inhibitors 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 7 13 12 11 14 46 3 2 Water connection tank To limit flaws in the enamel coating the tanks are provided with inched external thread 3 2 1 Mains water tank AN For the cold water in and warm water out connection please ensure not to use too much hemp since too thick
25. r stratification and positioning of heat exchanger in cold water current 4 water out circulation lt SE 5 285 Zi 2 ee water in Reducing piece for exact circulation quantity according to available condensation heat replaceable Insulating riser tube for transport of heated water into the upper part of the vessel Displacement cylinder inside the heat exchanger Strong walled insulating heat exchanger housing Finned tube exchanger with large surface area 8 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 10 thermometer H The DK Heat Recov ery System works on the basis of the water stratification principle For connection to a circulation main please use the respective nip ple located in the upper base The connection is located below the insu lation see pic 3 13 12 11 14 46 Cooling Heating Innovation 3 2 2 Heating water vessels For the cold and hot water connections please observe not to use too much hemp since too thick hemp package may damage the enamel in the connecting nipple Water connections must be carried out according to valid rules and local regulations i e a safety relief valve must be installed in line with permissible operational excess pressure of the vessel without shut off option towards the same Standard operation excess pressure is 3 0 b
26. r shoots out under high pressure AN Danger of damaging the pump The pump when the venting screw is opened and depending on the degree of operating pressure may lock The required intake pressure must be available on the pump s suction side EP Danger of burns from contact the pump Depending on the operation condition of the pump or of the unit temperature of the con veyed medium the whole pump could be very hot 11 0000 Montageanleitung Waermerueckgewinnung GB indd 22 13 12 11 14 46 Cooling Heating Innovation The sound level of the pump is below the limits prescribed by the EG directive 2006 42 EG for machines 6 2 Assembly of Temperature Control for 3 way Valve If the temperature control is included in the delivery as a loose part the following steps must be carried out Set the hand wheel to digit 7 Screw the temperature control onto the valve nsert the sensor into the thermowell and secure with the screw Be sure not to bend or press flat the capillary tube 6 3 How to Set the Temperature Control The temperature control s setting range lies between 40 and 70 Set the control to the desired temperature Higher numbers correspond to higher temperatures but also to a reduced amount of water The control limits the water temperature downwards meaning that the control always tries to re
27. um anode MEET pud thermostat not by Correx net by fitting for exchanger handhole cold water inlet hand hole cold water inlet warm water outlet 8 A thermometer i warm water circulation M circulation 4 guile thermometer overheat protection T overheat thermostat protection only for thermostat DEMENS only for electrical heater f electrical heater e g Correx e g Correx with 2 probes with 2 probes magnesium anode l not by l electrical heater Correx if required electrical heater if required thermostat Correx magnesium anode not by Correx fitting for cold water fitting exchanger inlet for exchanger handhole cold water inlet hand hole 27 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 29 13 12 11 14 46 lagram d uenepswa ELz87 c emp Jupe 5 BuNeaH weu eig Buum E use 160V LZ unea uoissiuoy D D D or 1 5 z Jojoejuo Buneay 3149913 ui peny uos L uonensur ay Dan si y 10 addi ay Jou op
28. w to check the sense of rotation The sense of rotation depending on the terminal box is indicated by a lamp either on or inside the terminal box The lamp lights up in green if the sense of rotation is correct If the sense of rotation is incorrect the lamp is dimly lit only To check the sense of rotation briefly switch on the pump If the sense of rotation is incorrect proceed as follows Disconnect all live parts Switch 2 phases in the terminal box Start the pump again The pump s rotor compartment is automatically vented shortly after starting up A brief dry running of the pump causes not damage TOP S SD Z pumps and TOP D venting screws can be vented as follows if need be 19 11_0000_Montageanleitung_Waermerueckgewinnung_GB indd 21 13 12 11 14 46 Switch off the pump Close the shut off device on the pressure carrying side Protect electrical parts against leaking water Carefully open venting screw using appropriate tools Carefully reverse the motor shaft repeatedly with screwdriver Tighten venting screw again after 15 to 30 seconds Switch on the pump Open shut off device again If other pumps are in use proceed in the same manner Risk of scalding Depending on the temperature of the pumping medium as well as the system pressure it is possible that when the venting screw is fully opened hot pumping medium of a liquid or vaporous form exits o
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