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IVT Airbox E 130-170, Installer'S Manual, Page: 57 / 64

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IVT Airbox E 130-170 Installer'S Manual Download Page 57

Heat pump and heat pump module venting

AirModule –6 720 813 268(2014/10)

57

14

Heat pump and heat pump module venting

Fig. 49   Heat pump module and heating system

1. Connect the heat pump and heat pump module to the power.
2. Ensure that the circulation pump PC1 is running. 
3. Remove the PC0 PWM plug from the circulation pump PC0 so that it 

operates at maximum speed.

4. Activate the booster heater only. 
5. Only deactivate the booster heater when the pressure has not 

dropped in 10 minutes.

6. Connect the PC0 PWM plug to the circulation pump.
7. Clean the particle filter SC1.
8. Check the pressure on the pressure gauge GC1 and add more with 

the fill valve VW2 if the pressure is below 2 bar.

9. Check that the heat pump is running and that there are no alarms.
10.Also vent via the other air vent valves of the heating system (e.g. 

radiators).

T

T

6 720 809 156-22.1I

Z1

SC1

GC1

VC0

VL1

VC1

VW3

VW2

VC2

PC1

PC0

VW1

Fill preferably to a higher pressure than the final one so 
that there is a magin when the temperature of the 
heating system rises and the air that has been dissolved 
in the water is vented out via VL1.

Summary of Contents for Airbox E 130-170

Page 1: ...Installer Guide AirModule E 9 15 6 720 809 156 00 1I 230V 1N 400V 3N 6 720 813 268 2014 10 ...

Page 2: ...7 19 Temperature sensor installation 20 7 20 Heat pump and heat pump module filling 22 8 Electric installation 23 8 1 CAN BUS 23 8 2 EMS BUS 23 8 3 Printed circuit board handling 24 8 4 External connections 24 8 5 Accessories 24 8 6 Connecting the heat pump module 24 8 7 Electric box layout 25 8 8 Power supply heat pump and heat pump module 9 kW 3N 29 8 9 Power supply heat pump and heat pump modul...

Page 3: ...oning and servicing Installation commissioningandservicingmustonlybecarriedoutbyan authorised contractor Only use original spares Electrical work Electrical work must only be carried out by a qualified electrician Before starting electrical work Isolate the mains electrical supply and secure against unintentional reconnection Check for zero potential Also observe connection diagrams of other syste...

Page 4: ... is available for defrosting the largest room should not contain room thermostats but room controllers should be used instead At least 30 m2 floor surface should be regulated by a room controller since the heat pump then will adjust flow temperature automatically Radiator system without a buffer cylinder To ensure that a sufficient amount of energy is available for defrosting there should be at le...

Page 5: ...installation Check that all pipe connections are intact and have not shaken loose during transportation Before operation of the heat pump module the heating system and thewaterheater includingtheheatpumpmodule mustbefilledand depressurized Wiringshouldbekeptasshortaspossibletoprotectthesystemfrom downtime for example during a thunderstorm Low voltage wiring must be separated from high voltage wiri...

Page 6: ...Cu 28 Maximum operating pressure kPa 250 250 Minimum operating pressure kPa 50 50 Expansion vessel L 14 14 External available pressure kPa 4 4 This depends on the type of heat pump see tab 11 4 Minimum flow L s 0 36 0 59 Circulation pump model Grundfos UPM2 25 75 PWM Wilo Stratos Para 25 1 11 PWM Flow max temperature booster only C 85 85 General Hot water cylinder volume L 190 190 Maximum operatin...

Page 7: ...HW heating The heat pump and heat pump module may be installed only in accordance with the official system solutions provided by the manufacturer Othersystemsolutionsarenotallowed Anydamageand problems resulting from prohibited installation are excluded from liability General Installer module Installer module integrated into the heat pump module ProControl 600 User interface CR10H Room controller ...

Page 8: ... Heat pump with heat pump module 3 Installed in the heat pump module 4 Installed either in the heat pump module or mounted to the wall 5 Installed on the wall T T PC1 MC1 TC1 M VC1 T T PC1 4 1 Airmodule E 400V AC PW2 T1 T0 400 230 V AC AirX 5 5 MK2 3 Rego 2000 3 6 720 809 156 22 2I HCM2000 RTH2000 RTH2000 Installermodul ...

Page 9: ...module 4 Installed either in the heat pump module or mounted to the wall 5 Installed on the wall MC1 TC1 M VC1 T T PC1 4 HCM2000 2 Airmodule E 400V AC PW2 T1 M VC0 MC1 TC1 M VC1 T T PC1 4 HCM2000 1 400 230 V AC AirX 5 RTH2000 5 RTH2000 MK2 3 Rego 2000 3 Installermodul B AB A BC 100 120 T0 6 720 809 156 22 3I The extra expansion vessel for the heating system is designed primarily for the volume of ...

Page 10: ...ve particle filter Thermal DHW mixing valve Outside temperature sensor Shut off valve with unintentional closure control 3 way valve change Wireless outside temperature sensor Valve motorized 3 way valve changing normally closed to II Radio wireless Valve thermal 3 way valve changing normally closed to A Shut off valve magnetic 4 way valve Other Thermometer Funnel with siphon Low loss header with ...

Page 11: ...ensions and connections Fig 5 Heat pump module minimum distance There should be at least 50 mm between the heat pump module sides andotherfixedinstallations walls sinks etc Idealpositioningisbyan outer wall or a middle wall Fig 6 Heat pump module dimensions mm Fig 7 Roof view dimensions _ 800 6 720 809 156 06 1I 400 _ 6 720 810 350 09 1I 1800 304 304 6 720 809 156 11 2I ...

Page 12: ...nlet connection 4 DHW outlet connection 5 Cable feed to IP module 6 Cable bus CAN BUS and sensor 7 Return to solar thermal system only on the solar models 8 Flow from solar thermal system only on the solar models 9 Return from safety group 10 Flow to safety group 11 Cable bus electrical connection 5 1 1 Safety assembly Fig 9 Safety assembly delivery 6 720 809 156 08 2I 50V 230V 400V 1 2 4 5 9 10 6...

Page 13: ...urn FC1 Pressure relief valve VL1 Automatic air vent valve T0 Flow temperature sensor GC1 Pressure gauge 5 2 Pipework 6 Regulations The following regulations and requirements must be observed Local rules and regulations including special rules of the responsible power supply company National building regulations EN 50160 Voltage properties in power grids for public distribution EN 12828 Heating sy...

Page 14: ...sensor Chapter 7 19 3 androom controller optional 6 Connect the CAN BUS wire between the heat pump and the heat pump module Chapter 8 1 7 Install any accessory mixing module solar module pool module etc 8 Connect EMS BUS wire optional to accessories Chapter 8 2 9 Fill up and bleed the hot water cylinder 10 Fill up and vent the heating system before commissioning Chapter 7 20 11 Connect the heating...

Page 15: ...t pump Chapter 12 1 7 8 Installation with cooling Cooling is disabled in the UK model to comply with the regulations for RHI Insulate all connections and pipes from condensation Install a room controller with or without an integrated moisture sensor manual for the respective room controller Install condensation sensors Chapter 7 18 Select automatic mode heating cooling Chapter 12 3 2 Make the nece...

Page 16: ... Chapter 11 2 Make necessary settings for the pool heating Kapitel 12 5 Fig 12 Pool installation example 1 Pool module 2 Pool VC1 Pool mixing valve HS Heating system Using solar additional heating requires installation of a solar module accessory The solar energy coil in the cylinder is intended for maximum added heating output of 4 5 kW Only DHW heating is possible with the integrated coil NOTICE...

Page 17: ...he heat pump 2 Heat transfer medium in from the heat pump 3 Flow from heat pump 4 Return to heat pump 6 720 809 156 14 1I 50V 230V 400V 50V 230V 400V 1 2 4 3 Heat pump output kW Heat transfer fluid delta K Nominal flow L s Maximum pressure drop kPa 1 1 For pipes and components between the heat pump module indoor unit and heat pump outdoor unit AX20 inner Ø 15 mm AX25 inner Ø 18 mm AX32 inner Ø 26 ...

Page 18: ...nect the heating system flow to the circulation pump Fig 14 Heating system and DHW connections heat pump module 1 Connection for circulation pump PC1 flow to heating system 2 Cold water inlet connection 3 DHW outlet connection SC1 Particle filter return from heating system connection Pressurereliefvalve non returnvalve andfillvalvemust be installed on the tap DHW circuit not included If there is n...

Page 19: ...made parallel to the same terminal in accordance with Fig 16 If several EMS modules are installed in the system these must be connected in accordance with Fig 33 Chapter 8 12 7 18 Installation of condensation sensor accessories The condensation guard function will stop the cooling if condensation developsontheheatingsystempipes Condensationwilldevelopduring cooling if the heating system temperatur...

Page 20: ...e is already a connection on the EMS terminal the connection is madeparalleltothesameterminalinaccordancewithFig 16 Ifseveral EMS modules are installed in the system these must be connected in accordance with Fig 33 Chapter 8 12 Fig 16 EMS connection on installer module 7 19 2 Flow temperature sensor T0 The sensor is delivered with the heat pump module Fit the sensor in the pocket on the safety as...

Page 21: ...Installation AirModule 6 720 813 268 2014 10 21 Fig 17 Outside temperature sensor positioning 1 2 H min 2m H N S W E NW NE SW SE 6 720 809 156 23 1I ...

Page 22: ...e 7 Close the drain valve VC0 and fill valve VW2 8 Move the hose to the heating system drain valve VC2 9 Open the particle filter SC1 the drain valve VC2 and the fill valve VW2 to fill the heating system 10 Continue filling until only water comes out of the hose by the drain and the heating system does not form bubbles any more 11 Close the drain valve VC2 12 Open the heating system fill valve VW2...

Page 23: ...st 0 5 mm2 In case of external inductive interferences e g from PV systems usescreenedcables Thescreenshouldonlybegroundedinoneend and to the chassis DANGER Risk of electric shock The heat pump module components conduct electricity Turn off the main power before any electrical work NOTICE Theinstallationwillgetdamagedifthepoweris connected without water Components in the heating system can overhea...

Page 24: ... circuits in moist rooms Output VC0 is active during cooling and is used to manage a 3 way valve to recirculation to facilitate the exchange between DHW heating and cooling 8 4 1 External outputs External inputs I1 I2 I3 and I4 can be used to remotely manage certain functions in the user interface The functions that are activated by the external inputs are described in chapter 12 1 2 The external ...

Page 25: ...r module 8 7 1 Terminal connections in electric box 9 kW immersion heater 3N standard setting Fig 23 Terminal connections in electric box 1 400 V 3 N 16 A input 2 230 V 1 N heat pump 5 7 9 3 230 V 1 N EMS Plus accessories 6 720 809 156 07 2I 1 5 2 4 3 6 720 809 156 16 3I 3 2 1 Immersion heater only on L1 and L2 during heat pump mode Otherwise the heat pump must have a separate power supply from th...

Page 26: ...nnections in electric box 15 kW immersion heater 3N standard setting Fig 25 Terminal connections in electric box 1 400 V 3 N 25 A input 2 230 V 1 N EMS Plus accessories 3 400 V 3 N heat pump 13 17 6 720 809 156 32 1I 2 1 The heat pump has a separate power supply from the distribution board 230 V 1 N 16 A 6 720 809 156 17 3I 1 2 3 Max 9 kW immersion heater during heat pump mode Otherwise the heat p...

Page 27: ...ation pump T0 Flow temperature sensor T1 Outside temperature sensor 8 7 5 Circuit diagram 9 kW immersion heater 1N Fig 27 Circuit diagram 9 kW 1N 1 Distribution board 2 Heat pump module 9 kW 230 V 1 N 3 Heat pump 5 7 9 13 230 V 1 N PC1 Heating system circulation pump T0 Flow temperature sensor T1 Outside temperature sensor 1 2 3 6 720 809 156 33 2I Immersion heater L1 L2 heat pump L3 Immersion hea...

Page 28: ...m 15 kW immersion heater 3N standard setting Fig 28 Circuit diagram 15 kW 3N 1 Distribution board 2 Heat pump module 15 kW 400 V 3 N 3 Heat pump 13 17 400 V 3 N PC1 Heating system circulation pump T0 Flow temperature sensor T1 Outside temperature sensor 1 2 3 6 720 809 156 34 2I ...

Page 29: ... output 2 Fig 31 4 Installer module operating voltage 1 Fig 31 EE Immersion heater FE Immersion heater overheating protection F1 Terminal fuse P Pressure switch K1 Contactor step 1 K2 Contactor step 2 K3 Contactor step 3 Immersion heater during compressor mode 2 4 6 kW K3 blocked Only immersion heater compressor off 3 6 9 kW 6 720 809 156 36 2I 1 2 3 4 Connection on L1 L2 L3 1N PE Feed heat pump 2...

Page 30: ...t pump 4 Immersion heater pressure switch alarm output 2 Fig 31 5 Installer module operating voltage 1 Fig 31 F1 Terminal fuse F2 Heat pump fuse EE Immersion heater FE Immersion heater overheating protection P Pressure switch K1 Contactor step 1 K2 Contactor step 2 K3 Contactor step 3 Immersion heater 3 6 9 12 15 kW 1 2 3 4 5 6 720 809 156 38 2I Delivered connected Connected during installation ac...

Page 31: ...erheating protection alarm FW0 Anode 230 V accessories K1 Immersion heater contactor EE1 K2 Immersion heater contactor EE2 K3 Immersion heater contactor EE3 F50 Fuse 6 3 A PC0 Heat transfer medium circulation pump PC1 Heating system circulation pump PK2 Cooling season relay output 230 V PW2 Hot water DHW circulation pump VC0 Recirculation exchange valve VW1 Heating DHW exchange valve 1 230 V opera...

Page 32: ...eat pump module 2 Heat pump 3 IP module 4 Accessories extra heating circuit pool sun etc 5 Room controller accessories 6 User interface 7 Addressing with 9 kW immersion heater standard setting 8 Addressing with 15 kW immersion heater standard setting 6 720 810 350 10 1I 1 6 4 3 2 8 7 2 9kW 15kW 5 Delivered connected Connected during installation accessories ...

Page 33: ...s Fig 33 Connection option EMS bus A Star network or serial connection with external coupling box B Star network C Serial connection 1 Installer module 2 Accessory modules for example Room Controller Mixing Valve Module Solar Module 1 A B C 1 1 2 2 2 2 2 2 2 2 2 2 2 2 6 720 809 156 43 1I ...

Page 34: ...om temperature A room controller must be installed in the reference room If the cooling mode is active it will be set to an adjustable constant temperature Furtherinformationoncontrolmodesandsettingsthatinfluencecontrol chapter 12 3 page 44 9 2 Important notices on usage OnlyproductsfromthesamedistributormaybeusedwithintheEMS BUS system 9 3 Optional accessories For details regarding suitable acces...

Page 35: ...o key When a menu is shown Press this key for more information about the selected item When standard display is active Press this key to enter the information menu user interface operating instructions 6 Return key Press this key to return to the previous menu or to cancel changes For maintenance or when an error has been detected Press this key to switch between standard display and error message...

Page 36: ... the key symbol appears on the display 6 Information graphic Displays information symbols showing the user what functions are currently active in the system DHW heating active Thermal disinfection DHW active Extra DHW function active Basin pool is being heated Heating active Cooling active Power outage caused by energy supply company Closed external input remote control Holiday function active Tim...

Page 37: ...the display Turn the selector to highlight a post Push the selector to confirm the selection The input window and the slide bar are active Turn the selector to set the value between the min and max value Multiple selection Turn the selector to highlight a post Press the selector to select the post Press the selector again to cancel the selection Repeat the steps until you have selected desired pos...

Page 38: ...nts from seizing motion operation 53 Diagnosis System diagnostics Perform function test of separate actuators e g pumps Compare set values and actual values Show current operating errors and error history Display EMS BUS unit software version Other functions Enter contact address Reset different settings Calibrate the clock 54 Table 19 Service menu overview The compressor in the heat pump warms up...

Page 39: ...rcuit 1 a heating cooling circuit with mixing valve Yes No Mixer runtime heat circ 1 How long until the mixing valve in heating cooling circuit 1 moves from one end position to the other 0 600 s Heating system heat circ 1 What type of heating does heating cooling unit 1 use Radiator Convector heater Underfloor Ctrl type h circ 1 How will the temperature influenced by heating circuit 1 be regulated...

Page 40: ... Diagnostics menu The available items dependontheinstalledsystem Inthismenu youcanteste g the DHW circulation pump On Off Chapter 12 9 1 page 54 11 5 Check monitored values MonitoredvaluesareshownintheDiagnosismenu Chapter 12 9 2 page 54 11 6 System handover Ensure that there are no temperature restrictions for heating and DHW set on the heat pump module Otherwise the user interface cannot control...

Page 41: ...m Outdoor temp limit Cooling mode off DHW heat pump 1 Additional heater with mixer Heating direct start limit DHW circulation pump Mixing valve delay Cooling start delay Solar thermal sys installed Mixing valve runtime Cooling start delay Constant temperature Alarm input logic Heating start delay Pool 3 way valve Outs temp par mode Heating start delay Electr anode in cylinder Outsidetemp exchangeo...

Page 42: ...infection day Pool Time prog DHW Therm disinfection time Solar thermal system Max period Solar Hours run Extra DHW temperature Default settings Daily heat up Solar Calibration Daily heat up time Heat pump Room temp sen adj DHW priority Time correction DHW priority on Heating circuit 1 4 DHW priority for Prioritise heating for DHW system Pool settings Pool module available DHW pre heating Pool 3 wa...

Page 43: ...nput is active Overheating protection VK1 Off No temperature restriction thermostat for heating cooling circuit 1 underfloor heating system On Thermostat for temperature restriction for heating cooling circuit 1 is connected to external inputs 1 3 When the thermostat is activated the heat pump module aborts the heating mode and turns off the heating cooling circuit Booster heater block Off Booster...

Page 44: ... mixing valves The circuit with the highest temperature setting determines the highest temperature for all the circuits Menu Item Setting range Description Storage cylinder Buffer cylinder Yes There is a buffer cylinder installed in the system No There is no buffer cylinder installed in the system Heating cooling circuit 1 is without mixing valve Config VK1 on the heat source Heating cooling circu...

Page 45: ...example shows how the adjusted outside temperature follows the current outside temperature but does not reach its extreme values Minimal outside temperature C Aten 2 Köpenhamn 13 Paris 10 Berlin 15 Lissabon 0 Prag 16 Bryssel 10 London 1 Rom 1 Budapest 12 Madrid 4 Sevastopol 12 Bukarest 20 Marseille 6 Stockholm 19 Hamburg 12 Moskva 30 Valencia 1 Helsingfors 24 Neapel 2 Wien 15 Istanbul 4 Nice 0 Zür...

Page 46: ... end Max flow temperature 30 75 85 radiator 30 48 60 C underfloor heating system convector Maximum flow temperature from the heat pump module booster heaters are used for temperatures above the heat pump s maximum flow temperature Adjusting the heating curve Fine tuning the heating curve that has been preset through the heating system Setting the heating system and the heating curves for outside t...

Page 47: ... flow temperature value Mixer Yes Selected heating cooling circuit is with mixing valve No Selected heating cooling circuit is without mixing valve Mixer runtime Selected heating cooling circuit mixing valve operating time Shown in standard display Yes Selected heating cooling circuit is show in the standard display No Selected heating cooling circuit is not show in the standard display Menu Item ...

Page 48: ...system temperature theflowtemperaturethatshouldbereachedatminimum outside temperature fig 40 and 41 left The heating curve can also be parallel offset up or down fig 40 and 41 right by adjusting the room temperature offset parameter and or the set room temperature Fig 40 Setting of Heating curve for underfloor heating systems convectors Left increase with system temperature T1 and minimum outside ...

Page 49: ...e TVL Flow temperature 1 Underfloor heating system or convector 2 Radiator Constant heating below a certain outside temperature SS EN 12831 Heating systems in buildings Method for calculation of the design heat load shows how heating surfaces and heat sources are dimensioned for a certain output to maintain a comfortable heating In setback mode the heating system can be cooled down more than what ...

Page 50: ...nterface battery power or the max outage time This menu is only displayed if at least one underfloor heating system circuit is installed and set up in the system NOTICE Water bearing system components can be destroyedifthefrostprotectiontemperaturelimitistoo low and the outside temperature is below 0 C for an extended period of time The temperature limit for frost protection standard setting 5 C s...

Page 51: ...ooling phase fig 45 5 1 10 days Cool down phase t diff 1 5 35 K Temperature differential between the steps in the cooling phase fig 45 6 Endphase duration No end phase Time period between the beginning of the end phase the last temperature step and the end of the drying program fig 45 7 Permanently 1 30 days End phase temperature 20 25 55 C Flow temperature during the end phase fig 45 7 Max interr...

Page 52: ...e Off DHW circ OFF On Circulation is permanently activated connection frequency is followed DHW circulation pump mode Activate the same time program for circulation as for DHW heating More information about this and about how you set your own time program user interface operating instructions Own time program Activate own time program for circulation More information about this and about how you s...

Page 53: ...tervals between 00 00 and 23 00 WARNING Risk of scalding During thermal disinfection the domestic hot water is heated to above 60 C Only carry out thermal disinfection outside normal hours of use Inform all parties concerned and make sure that at mixer is installed Menu Item Description DHW priority on Yes The controls alternate between heating mode and DHW operation in accordance with the setting...

Page 54: ...rder to cancel the blocking Status log Snapshot In order to get more information about taking care of errors that occur Open the Service menu Diagnosis Fault displays Heat source alarm history menu Turn the selector until the desired error is displayed Push and hold the info button until a list is displayed with the data registered when the selected error occurred Turn the selector to call up addi...

Page 55: ...ring is causing the error Repair or replace the BUS wires Replace defect EMS BUS unit A11 1038 Invalid time date Date time not yet set Set date time Prolonged power outage Set date time A11 3061 3062 3063 3064 No communication with mixing valve module 3061 Heating circuit 1 3062 Heating circuit 2 3063 Heating circuit 3 3064 Heating circuit 4 Check configuration set address on the module The select...

Page 56: ...inal Clean corroded terminals in the outside temperature sensor assembly Check the outside temperature sensor according to the diagram Replace the sensor if the values are incorrect Check the outside temperature sensor connecting terminal voltage on the user interface according to the diagram If the sensor values are correct but the voltage is incorrect the user interface should be replaced H01 52...

Page 57: ...re has not dropped in 10 minutes 6 Connect the PC0 PWM plug to the circulation pump 7 Clean the particle filter SC1 8 Check the pressure on the pressure gauge GC1 and add more with the fill valve VW2 if the pressure is below 2 bar 9 Check that the heat pump is running and that there are no alarms 10 Also vent via the other air vent valves of the heating system e g radiators T T 6 720 809 156 22 1I...

Page 58: ...d in serial so that a tripped alarm or information in the user interface means either that the system pressure is too low or that the immersion heater temperature is too high Pressure switch The heat pump module is equipped with a pressure switch which is tripped when the heating system pressure is below 0 5 bar The pressure switch will reset itself when the pressure is above 0 5 bar Check that th...

Page 59: ...tion or other disposal of the different components 18 Maintenance Only use genuine spare parts Refer to the spare parts list when ordering spare parts Always renew seals and O rings removed during servicing or repair work During service the activities described below should be conducted Show alarms Check the alarm log Function check Perform function checks Chapter 16 Electric cabling During servic...

Page 60: ... and 44 1 2 2 1 1 2 3 4 6 720 805 915 01 1I C C C C 20 12488 40 5331 60 2490 80 1256 25 10001 45 4372 65 2084 85 1070 30 8060 50 3605 70 1753 90 915 35 6536 55 2989 75 1480 Table 43 Flow and DHW temperature sensor T0 TW1 TC0 TC1 C T C T C T 40 154300 5 11900 50 1696 35 111700 10 9330 55 1405 30 81700 15 7370 60 1170 25 60400 20 5870 65 980 20 45100 25 4700 70 824 15 33950 30 3790 75 696 10 25800 3...

Page 61: ...nternet connection is established the module automatically logs on to the server Local network Themoduledoesnothavetobeconnectedtotheinternet Itcanalso be used in a local network In this case however the module cannot be reached via the internet and the IP module software cannot automatically update The app IVT Anywhere When the app is opened for the first time the predefined login name and passwo...

Page 62: ...ed so that no snow or rain can slide or drip down from the roof Yes No Heat pump condensation water hose Has the condensation water hose been fitted with a heating cable Yes No Heat pump connections Have the connections been professionally installed Yes No Who laid delivered the power cable Heat pump module minimum distance Minimum distance to wall mm Minimum distance in front of the heat pump mod...

Page 63: ...e the temperature values in the menu been checked and documented Yes No T0 T1 TW1 TL5 TC0 TC1 ________ C ________ C ________ C ________ C ________ C ________ C Booster heater settings Start delay Booster heater time delay Block booster heater Yes No Immersion heater connected load settings Booster heater max temperature ________ C Electrical output shows actual value Protective functions Block the...

Page 64: ...Alto Energy Limited Unit 17 Glenmore Business Centre Witney Oxfordshire OX29 0AA United Kingdom www altoenergy co uk info altoenergy co uk ...

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