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Strebel S-ASX 100 Installation Operating & Maintenance Manual Download Page 58

 

58 

20  CASCADE CONTROL 

When using the integrated cascade control, a maximum of 16 heat pumps can be controlled in a cascade  
configuration. When using the cascade control, the demand signal, temperature sensors, DHW three way valve and 
any immersion heaters need to wired to back 

to the ‘master’ heat pump. 

 
The following setup example is for a 2 x S-ASX 60-100 cascade setup: 

 

Drawing Number 

Part Description 

B9 

Outside Air Temperature Sensor 

B10 

Common Flow Temperature Sensor 

Q3 

DHW Three Way Valve 

Q4 

DHW Secondary Circulation Pump 

K6 

DHW Immersion Heater 

B3 

DHW Tank Temperature Sensor 

B4 

Thermal Store / Buffer Vessel Flow Temperature Sensor 

B41 

Thermal Store / Buffer Vessel Return Temperature Sensor 

 

20.1 

Cascade Wiring 

The cascade wiring needs to be completed by a qualified electrician. 
20.1.1 

 

C

ASCADING 

S-ASX

 

60-100

 

H

EAT 

P

UMPS 

T

OGETHER

 

Using terminals MB & DB on each heat pump main controller, daisy chain them together as shown below. 

 

If a third heat pump is to be added, daisy chain the same terminals from Slave 1 and so on. 
 
 
 
 

Summary of Contents for S-ASX 100

Page 1: ...ir Source Heat Pump Models 60 70 80 90 100 Installation Operating Maintenance Manual Please read and understand before commencing installation and leave the manual with the customer for future reference 2021 06 01 v1 ...

Page 2: ...2 ...

Page 3: ...6 1 2 Installed Dry Weight 19 6 1 3 Installed Filled Weight 19 6 2 S ASX 60 100 DHW 3 WAY VALVE 19 7 NOISE LEVELS 19 8 PRESSURE DROP 20 8 1 PRESSURE DROP THROUGH HEAT PUMP PLATE HEAT EXCHANGER 20 8 2 PRESSURE DROP THROUGH DHW 3 PORT VALVE 20 9 SYSTEM PUMP SELECTION OPERATING LIMITS 21 9 1 SYSTEM PUMP SELECTION 21 9 1 1 Modulating Pump Standard Supply 21 9 1 2 High Head Pump Additional Option 21 9 ...

Page 4: ...ATION OF THE USER INTERFACE REMOTE CONTROLLER 38 17 4 1 Removing the Mounting Plate From The Controller 38 17 4 2 Fitting The Mounting Plate To A Surface 39 17 4 3 User Interface Room Controller Wiring 40 17 4 4 Uninstall User Interface Room Controller 41 17 5 BASIC INFORMATION 42 17 5 1 Operating Elements Display 42 17 5 2 Display in Standby 42 17 5 3 Navigating Setting Using the Control Knob 43 ...

Page 5: ... RESET 63 22 2 FAULT ALARM HISTORY 63 22 3 FAULT ALARM CODE TABLE 64 23 MAINTENANCE 67 23 1 ONSITE REGULAR MAINTENANCE 67 23 1 1 Structure 67 23 1 2 Hydraulic Plant 67 23 1 3 Electrical Plant 67 23 1 4 Fans 67 23 1 5 Finned Coil 67 23 1 6 Finned Coil Condensate Drainage 67 23 2 ANNUAL MAINTENANCE SERVICE VISIT 67 24 SAFETY AND POLLUTION 68 24 1 ACCESSING THE HEAT PUMP 68 24 2 RESIDUAL RISKS 68 24 ...

Page 6: ...all according to national and regional standards Failure to comply with these regulations could deem the warranty invalid This appliance must be installed outdoors and connected to a hydronic heating system Check the electrical specifications given on the data plate and the wiring diagram before making any electrical connections Deactivate the appliance in case of fault or poor operation If the ap...

Page 7: ... B and C Adhere to all regulations that are in force at the time of installation or service 1 2 Declaration of Conformity We declare that this appliance complies with the requirements of the following directives Machinery Directive MD 2006 42 EC Pressure Equipment Device PED 2014 68 EC Electromagnetic Compatibility Directive EMC 2014 30 EU Low Voltage Directive LVD 2014 35 EU 1 3 Data Plate Take n...

Page 8: ...are required for installation 2 2 Description of Components External Structure Basement supporting structure and lateral panels are made of galvanized and painted sheet steel to guarantee good resistance to atmospheric agents Accessibility to internal parts is possible removing the frontal and lateral panels For maintenance also the other panels can be removed Refrigerant Circuit It is contained i...

Page 9: ... commutated EC motor and guarantee high efficiencies in all the operating conditions Hydraulic Circuit All the pipes are thermally insulated to avoid condensate formation and minimise thermal losses This circuit is equipped with a modulation circulation pump internal to the casing designed to flow water to the nearest thermal buffer store a high head circulation pump is an additional option and wi...

Page 10: ...uantity 1 n Frontal surface 1 71 2 56 2 56 3 42 3 42 m2 Fans Type Axial with High Efficiency EC Motor Quantity 2 3 4 n Diameter 630 630 630 630 630 mm Maximum rotational speed 1140 1140 1140 1140 1140 rpm Total installed power 1 94 2 91 2 91 3 88 3 88 kW System Side Hydraulic Circuit Secondary Side Safety Valve Set Point 6 6 6 6 6 bar Expansion Vessel Volume 12 12 12 12 12 l System Side Pump Modul...

Page 11: ... 3 98 3 98 3 97 3 98 3 98 Water flow rate system side 8382 9888 11031 12451 14512 l h Pressure drops system side 16 18 18 16 16 kPa Heating A 4W35 Source Air in 4 C d b 5 C w b Plant Water in 30 C out 35 C Heating capacity 44 2 52 1 58 1 65 6 76 6 kW Power input 12 2 14 4 16 1 18 1 21 2 kW COP 3 62 3 62 3 61 3 62 3 61 Water flow rate system side 7637 9005 10044 11343 13231 l h Pressure drops syste...

Page 12: ...3 17 3 17 3 16 Water flow rate system side 8551 10080 11244 12704 14807 l h Pressure drops system side 17 18 18 16 16 kPa Heating A 4W45 Source Air in 4 C d b 5 C w b Plant Water in 40 C out 45 C Heating capacity 45 1 53 1 59 3 66 9 78 1 kW Power input 15 6 18 3 20 5 23 1 27 1 kW COP 2 89 2 90 2 89 2 90 2 88 Water flow rate system side 7821 9211 10288 11609 13538 l h Pressure drop system side 14 1...

Page 13: ...2 63 2 65 2 63 2 64 2 63 Water flow rate system side 5481 6462 7213 8150 9502 l h Pressure drops system side 7 8 8 7 7 kPa Heating A 4W55 Source Air in 4 C d b 5 C w b Plant water in 47 C out 55 C Heating capacity 46 3 54 5 60 9 68 7 80 2 kW Power input 19 1 22 5 25 2 28 4 33 3 kW COP 2 42 2 42 2 42 2 42 2 41 Water flow rate system side 5045 5939 6636 7486 8728 l h Pressure drop system side 6 7 7 ...

Page 14: ...8 2 18 2 17 2 18 2 17 Water flow rate system side 4532 5337 5967 6736 7847 l h Pressure drops system side 5 6 6 5 5 kPa Heating A 4W65 Source Air in 4 C d b 5 C w b Plant Water in 55 C out 65 C Heating capacity 47 8 56 4 63 0 71 1 82 8 kW Power Input 23 9 28 1 31 4 35 4 41 4 kW COP 2 00 2 01 2 01 2 01 2 00 Water flow rate system side 4182 4934 5512 6220 7244 l h Pressure drop system side 5 5 5 5 5...

Page 15: ...Value Value Value Seasonal Space Heating Efficiency Class A A A A A Seasonal Coefficient of Performance SCOP 4 25 4 21 4 24 4 23 4 26 Seasonal Space Heating Energy Efficiency ɳs 167 166 167 166 167 Annual Energy Consumption Qhe kWh 22907 27213 30207 34151 39668 Average Climate Conditions Declared for Medium Temperature Applications 55c Unit Value Value Value Value Value Seasonal Space Heating Effi...

Page 16: ...ee the correct operation and accessibility to facilitate full maintenance procedures please ensure the free area around the appliance is as shown below to all models S ASX 60 S ASX 70 80 S ASX 90 100 A 1130 mm 1130 mm 1130 mm B 1710 mm 2430 mm 3130 mm H 1980 mm 1980 mm 1980 mm ...

Page 17: ...ed and wired to heat pump controller on site 2 x NTC Temperature Sensors 10k To be fitted into the top bottom pockets of the thermal store and wired back to the heat pump controller Soft Start Function Software activated as standard which reduces the compressor start current Low Noise Setup Acoustic insulation pre fitted around refrigerant circuit and sound jackets pre fitted around compressors Ca...

Page 18: ...r a DHW circuit to monitor the DHW temperature within cylinder AVS 75 370 Extension Module In case additional relays are required for installation requirements An additional two modules can be added in total per heat pump controller 5 2 1 SYSTEM SIDE INTERAL PUMP SETUP EXAMPLE MODULATING OR HIGH HEAD The location of the system pump is located where the black arrow is pointing to 5 2 2 INTERNAL 3 W...

Page 19: ...nternal DHW 3 way valve 27 29 29 34 34 Kg 7 NOISE LEVELS The table below shows the noise level per S ASX 60 100 model Model Sound power levels dB By octave bands Hz Sound Power Level Sound Pressure Level At 1 Metre At 5 Metres At 10 Metres 63 125 250 500 1000 2000 4000 8000 dB dB A dB A dB A dB A S ASX 60 81 0 78 9 77 2 73 5 70 0 65 8 60 1 52 6 85 76 58 49 44 S ASX 70 81 9 79 8 78 1 74 4 70 9 66 7...

Page 20: ... Pump Plate Heat Exchanger The below table shows the pressure drop through the system side of the plate heat exchanger for all five models 8 2 Pressure Drop Through DHW 3 Port Valve The below table shows the pressure drop through the DHW 3 port valve ...

Page 21: ...es not include the pressure drop of the DHW 3 port valve refer to the DHW 3 port valve pressure drop graph shown in chapter 6 2 and add the resistance to the calculations This graph is refered to the unit operating with a temperature at 10c Density 1000 kg m3 Example S ASX 80 at 45c flow temperature at 7c air temperature Flow rate 13620 l h Pump head available Approx 160 kPa Pressure drop through ...

Page 22: ...ow temperature at 7c air temperature Flow rate 13620 l h Pump head available Approx 215 kPa Pressure drop through DHW 3 port valve Approx 6 kPa Total available head for system at 13 620 l h Approx 209 kPa 9 2 Operating Limits Delta T The below graph shows the operating area with the heat pump working within its limits ...

Page 23: ...23 10 CORRECTIVE FACTORS 10 1 Heating Performances ...

Page 24: ...g the equipment to use for unit handling and the operating formalities to follow 11 3 Handling Before handling the unit check the weight of the unit which is shown on the unit s data plate and the supplied installation operating and maintenance manual Make sure the heat pump is handled with care avoiding any kind of collision that could damage the operating parts within the heat pump It is strongl...

Page 25: ...and must be able to support the overall filled weight listed below includes the weight of the DHW 3 port valve Model S ASX 60 S ASX 70 S ASX 80 S ASX 90 S ASX 100 Unit Total Weight 841 971 983 1117 1136 Kg Although the heat pumps vibration is low to lower the vibrations further it is possible to install between the base of the heat pump and the floor either a strip of hard rubber or rubber vibrati...

Page 26: ...ion vessel To maintain system pressure and expansion System AAV s at the highest point To remove any trapped air within the pipework Strainers filters To be installed on the return pipework secondary system side of the buffer vessel Pipework Insulation All interconnecting pipework must be insulated with appropriate and correct thickness insulation 13 2 Hydraulic Connections The below drawing with ...

Page 27: ... drain is not installed correctly is not covered by our manufacturer s warranty There should be an open connection of the condensate hose into the sewage system A possible vacuum in the sewage system must never give the opportunity to suck on the condensate drainpipe Use only plastic parts with the condensate drain metal lines are not allowed 13 4 Glycol Volume Freezing Temperatures Below table sh...

Page 28: ...wiring should be installed according to all applicable standards and regulations 14 2 Electrical Data 14 2 1 HEAT PUMP EXCLUDING SYSTEM PUMP OPTIONS Model S ASX 60 S ASX 70 S ASX 80 S ASX 90 S ASX 100 Unit Power Supply 400 3 50 400 3 50 400 3 50 400 3 50 400 3 50 V Ph Hz Maximum Start Current Includes Soft Start 116 128 139 160 184 Amps Nominal Run Current Input 44 1 50 1 55 1 63 4 72 4 Amps Maxim...

Page 29: ... a full schematic of the internal wiring of the heat pump controller refer to the internal wiring diagram that is available for download online and is supplied with a new heat pump delivery 14 4 Extension Modules Siemens AVS75 370 One extension module is supplied fitted and prewired per S ASX 60 100 heat pump A maximum of two further extension modules can be fitted 3 in total ...

Page 30: ...8 70 1753 120 387 25 129289 25 10000 75 1481 125 339 20 96360 30 8059 80 1256 130 298 15 72502 35 6535 85 1070 135 262 10 55047 40 5330 90 915 140 232 5 42158 45 4372 95 786 145 206 0 32555 50 3605 100 677 150 183 5 25339 55 2989 105 586 155 163 10 19873 60 2490 110 508 160 145 15 15699 65 2084 115 443 165 130 14 5 2 OUTSIDE AIR TEMPERATURE SENSOR Conversion table temperature vs Resistance outside...

Page 31: ...or NTC 10K H1 VK1 Heating request Voltage free digital input Or 0 10 Vdc input x H3 H82 Compressor inlet pressure 0 10 Vdc input EX1 230 Vac digital input x EX2 E10 High pressure switch 230 Vac digital input EX3 230 Vac digital input x EX4 E24 Plant flow switch Plant pump thermal protection 230 Vac digital input EX5 E25 Soft starter compressor 1 230 Vac digital input EX6 E27 Soft starter compresso...

Page 32: ...NTC 10K H21 VK2 x H22 H86 EVI inlet pressure 0 10 Vdc input EX21 230 Vac digital input x 14 6 4 EXPANSION MODULE OUTPUTS ID Use Description Features Available for the User Outputs QX21 2A 230 Vac x QX22 2A 230 Vac x QX23 K32 Heating integration 2A 230 Vac x UX21 Q9 Modulating plant pump 0 10 Vdc input UX22 0 10 Vdc input x WX21 V82 EVI expansion valve Unipolar expansion valve ...

Page 33: ...Store Buffer Vessel Return Temperature Sensor 15 2 1 x S ASX ASHP to 1 x Thermal Store 1 x Indirect DHW Cylinder Drawing Number Part Description B9 Outside Air Temperature Sensor Q3 DHW Three Way Valve Q4 DHW Secondary Circulation Pump K6 DHW Immersion Heater B3 DHW Tank Temperature Sensor B4 Thermal Store Buffer Vessel Flow Temperature Sensor B41 Thermal Store Buffer Vessel Return Temperature Sen...

Page 34: ...ription B9 Outside Air Temperature Sensor B10 Common Flow Temperature Sensor Q3 DHW Three Way Valve Q4 DHW Secondary Circulation Pump K6 DHW Immersion Heater B3 DHW Tank Temperature Sensor B4 Thermal Store Buffer Vessel Flow Temperature Sensor B41 Thermal Store Buffer Vessel Return Temperature Sensor ...

Page 35: ...anufacturer s warranty Connect the unit power supply line and verify 1 The voltage of the power supply line complies with the nominal one of the unit 2 On the 3 phase power supply the unbalance between the phases is lower than 2 A higher value produces an excessive current input on one or more phases causing possible damages to the electrical components of the unit NOTE Example of phase unbalance ...

Page 36: ...heat pumps to change settings parameters An external control system will be required to create a heat demand signal 17 1 Remote Control Design 17 1 1 FRONT VIEW 1 Control Knob 2 Display LCD 17 1 2 REAR VIEW 1 Controller Housing 2 Mounting Plate 3 Snapper to release attach the mounting plate 17 1 3 BOTTOM VIEW 1 USB Connection For service only 2 Snapper to release attach the mounting plate ...

Page 37: ...m unit 200 m USB Type Mini B Classification as per EN 60730 Degree of pollution 2 Design type Safety class III for proper installation Housing Protection as per EN 60529 IP40 Mounted Standards guidelines Electromagnetic compatibility application range For residential commercial and indus trial environments EU conformity CE T7471x5 Climatic conditions Storage as per IEC60721 3 1 Class 1K3 temp 20 6...

Page 38: ... mm 17 4 Installation of the User Interface Remote Controller To install the controller the following is required o At least 3 to a maximum of 7 screws o Maximum screw diameter 3 5mm o Maximum screw head height 2 4mm o Drill o Screwdriver 17 4 1 REMOVING THE MOUNTING PLATE FROM THE CONTROLLER Remove the rear mounting plate from the controller ...

Page 39: ...ude the screws highlighted by the arrows shown below Additional screws maybe required if the connection between the mounting plate and mounting surface is not sufficient For surface mounting maintain at least a 10mm between the top edge of the mounting plate and the end of the cable duct The unit top part must be able to be moved up freely when installing or taking it off ...

Page 40: ... User Interface Room Controller Terminal Number Siemens RVS61 843 Terminals 1 G 12v DC Supply 2 CL GND 3 CL BSB Remove the cable access panels from the controller Connect the cables to the controller Tip Rigid cables are easier to mount on the green screw terminals if the terminals are already snapped on ...

Page 41: ...roller into the top of the mounting frame Once inserted lower the controller towards the mounting frame until you feel and hear it click 17 4 4 UNINSTALL USER INTERFACE ROOM CONTROLLER 1 Place a screwdriver from below into the moveable snappers of the con troller 2 Press the snap and simultaneously lift the housing top The housing re mains in place at the top 3 Unhinge the housing top at the top 4...

Page 42: ...s the controller is supplied with power and begins to communicate with the main controller 17 5 1 OPERATING ELEMENTS DISPLAY 1 Control Knob Push and Rotate 2 Display 3 Navigation Bar 4 Status Bar 5 Room Temperature Setpoint 17 5 2 DISPLAY IN STANDBY Current Room Temperature Current Temperatures ...

Page 43: ... The first adjustable operating object of the work area is preselected Go back using the Back arrow on the navigation bar The symbol in the navigation bar is once again preselected To make changes to setting Turn control knob The preselection is displayed with a frame around the operating object Press control knob The operating object is selected and is displayed inverted The lower level is displa...

Page 44: ...llowing symbols can be displayed on the status bar Top horizontal bar Symbol Alarm indicates a plant error Symbol Maintenance Special operations indicates the presence of a maintenance message or special operation feedback Symbol Event indicates an event message from the plant Hand symbol the Hand symbol is displayed if the plant zone switch setting is changed by making an adjustment on the topic ...

Page 45: ...gineer Commissioning wizard Commissioning wizard Automatic start during initial commissioning User is guided step by step through the commissioning pro cess You can repeat and skip chapters Diagnostics Heating engineer OEM Expertview diagnos tic pages Diagnostic pages Selection from topic list then scroll by selected page title Upgrade repair adjust Commissioning engineer heatingengineer OEM Exper...

Page 46: ...ress of the knob on any expert view returns to the Expert view start page diagnostics page Locking Timeout 1 minute Certain plant states are displayed in the foreground e g special operations page However users are still able to go to any page and set values The foreground page returns after this period without operator intervention Operating Timeout 8 minutes The display switches automatically af...

Page 47: ...ommissioning wizard can be queried at any time see Section Start commissioning wizards 80 Operating line 39 and the auto start setting is then ignored Structure The commissioning wizard is structured in a room operator unit specific part in the white graphic and the system specific part in the grey graphic Notes on room operator unit settings available in Section Room operator unit parameters 86 N...

Page 48: ...one 1 46 I Operation zone 3 Jointly with zone 1 Independently Jointly with zone 1 47 I Room values device 1 Zone 1 only For all assigned zones For all assigned zones 48 I Warmer device 1 None Zone 1 only For all assigned zones For all assigned zones 50 I Room temperature 0 50 C 51 I Room temperature min 0 50 C 52 I Room temperature max 0 50 C 54 F Readjustment room sensor Temperature 0 0 3 0 3 0 C...

Page 49: ...ting line Settings 40 Used as Room unit 1 Room unit 2 Room unit 3 Operator unit 1 Operator unit 2 Operator unit 3 Parameter 40 It is preferably to set this parameter to Operator Unit 1 as this controller will normally be installed within the plant room therefore it will not be beneficial to use as a room controller 17 7 2 3 Parameters 42 to 48 Zone Assignment No Operating line Settings 42 Assignme...

Page 50: ...ration Operating special functions 3 Settings Settings relating to the plant 4 Expert Login to expert view 17 8 1 REGIONAL SETTINGS The parameters within these settings are included within the commissioning wizard except for start and ends of daylight saving time The settings are Time Date Daylight saving time start and end Language Proceed as follows to change regional settings 1 Turn the control...

Page 51: ...page 6 Set the values as per the needs of your building or living zone 7 Exit the settings page with Back 17 8 3 EXPERT LEVEL OEM The OEM under the Expert level allows the engineer for full diagnostics complete parameter access and to start the commissioning wizard This must not be accessed by the onsite user please contact Strebel Technical if this is required to be accessed without an expert eng...

Page 52: ...plete the following 1 Select the diagnostic page 2 Turn the control knob and select Input Output Test 3 Press the control knob Input Output Test opens The title of the first page of the input output test is preselected The associated parameters with operating lines are displayed in the work area 4 Press the control knob to select the title 5 Turn the control knob until you see the input or output ...

Page 53: ...ng is displayed on the Adjust Repair pages 1 Complete parameter list 2 Commissioning wizard 3 Refresh operator unit The list entry Refresh operator unit is displayed if changes are made on the complete parameter list or commissioning wizard that impacts the device pages Complete Parameter List The complete parameter list has the following structure The title of the parameter list page Heating or D...

Page 54: ...ith Back Start Commissioning Wizards You can start the commissioning wizard at any time via the menu items described below and benefit from the structured processing of commissioning parameters To access the commissioning wizard go to the adjust repair page and using the control knob select Commissioning wizard Refresh Operator Unit The list entry Refresh operator unit is displayed if changes are ...

Page 55: ... a volt free control system to be connected to terminals M H1 which will turn on the heat pump when this contact is closed and therefore will turn off the heat pump when this contact is open 18 1 1 FIXED SETPOINT To set a fixed setpoint parameters 740 741 will need to be set to the same temperature For example to set a fixed setpoint of 45c Parameter Value Description 7 4 0 45 Minimum Setpoint mod...

Page 56: ...er 7 4 0 40 Minimum Setpoint modifiable by the user 7 4 1 60 Maximum Setpoint modifiable by the user 18 2 Analogue Input 0 10v This setup is designed for an analogue input 0 10v control system to be connected to terminals M H1 which will activate the heat pump and define the heating setpoint The analogue input defines the setpoint on the return temperature water inlet to the unit The setpoint is c...

Page 57: ...l stop and the heat pump switches to serve the CH installation for the same duration this cycle is repeated until the DHW setpoint is met It is possible to manage anti legionella cycles setting the logic fixed time intervals or a fixed day per week the activation hour and the setpoint It is also possible to manage a DHW recirculation pump Parameter Value Description 1 6 1 0 60c Nominal DHW Setpoin...

Page 58: ... Air Temperature Sensor B10 Common Flow Temperature Sensor Q3 DHW Three Way Valve Q4 DHW Secondary Circulation Pump K6 DHW Immersion Heater B3 DHW Tank Temperature Sensor B4 Thermal Store Buffer Vessel Flow Temperature Sensor B41 Thermal Store Buffer Vessel Return Temperature Sensor 20 1 Cascade Wiring The cascade wiring needs to be completed by a qualified electrician 20 1 1 CASCADING S ASX 60 10...

Page 59: ...r Vessel Return Temperature Sensor B10 Common Flow Temperature Sensor B9 Outside Air Temperature Sensor VK1 On Off Demand Signal B3 DHW Tank Temperature Sensor 20 1 3 SLAVE UNIT WIRING Apart from the communication wire between terminals MB DB as shown within chapter 20 1 1 the only optional external wiring is for a second operator unit to be installed Any operator unit installed within a slave hea...

Page 60: ...ators are switched on as early as possible Output band min and switched off again as late as possible Output band min to have the largest possible number of generators in operation or to obtain long running times for additional generators 4 According to buffer temp The generators are switched on and off depending on the storage tank temperatures If the temperature at all sensors B4 and B41 lies be...

Page 61: ...d by the Release integral source seq set here another generator is switched on i When the value is increased additional generators are switched on at a slower rate ii When the value is decreased additional generators are switched on at a faster rate 20 2 8 RESET INTEGRAL SOURCE SEQUENCE 3531 If the cascade flow temperature B10 exceeds its setpoint by the adjustable neutral zone for explanation see...

Page 62: ...rs within the cascade changes When changing over the generator with the next higher device address assumes the function of the lead generator and the previous lead generator is moved to the end of the generators or generator group 20 2 13 AUTO SOURCE SEQUENCE EXCLUSION 3541 Setting the generator sequence exclusion is only used in connection with the activated generator sequence line 3540 With gene...

Page 63: ...splay Event recorded in the alarm history Errors that can damage the unit or the plant require a manual reset that implies that the operator must reset manually the controller It is advisable to verify accurately the cause that originated the error and to make sure that the problem has been solved before restarting the unit In any case the unit will restart only if the cause of the error has disap...

Page 64: ...nk Sensor B4 A B4 No 71 Plant Buffer Tank Sensor B41 A B41 No 72 Plant Buffer Tank Sensor B42 A B42 No 73 Solar Panel Sensor 1 A B6 No 74 Solar Panel Sensor 2 A B61 No 76 Special Sensor 1 A BX No 81 LPB Short Circuit A No 82 LPB Address Collision A No 83 BSB Short Circuit A No 84 BSB Address Collision A No 85 Wireless Communication Error on BSB bus A No 98 Expansion Module 1 A No 99 Expansion Modu...

Page 65: ...2 Water Pressure 3 too High A Hx No 323 Water Pressure 3 too Low A Hx Yes 324 Bx Sensors with the same Function A No 325 Bx Sensors with the same Function on Expansion Modules A No 326 Bx Sensors with the same Function on Mixing Groups A No 327 Expansion Modules with the same Function A No 328 Mixing Groups with the same Function A No 329 Mixing Groups on Expansion Modules with the same Function A...

Page 66: ...A No 447 BX6 no Function A No 452 HX1 no Function A No 453 HX3 no Function A No 454 HX31 no Function A No 455 HX32 no Function A No 456 HX33 no Function A No 457 BX7 no Function A No 462 BX8 no Function A No 463 BX9 no Function A No 464 BX10 no Function A No 465 BX11 no Function A No 466 BX12 no Function A No 467 BX13 no Function A No 468 BX14 no Function A No 469 HX21 no Function A No 470 HX22 no...

Page 67: ...mpromise the insulation Contact an authorized service centre if maintenance is required After a first period of time from the first start up and at every stop or seasonal start up carefully check that each electrical connection is well fixed 23 1 4 FANS Verify that the fans are well fixed to the protective grilles and to the structure of the unit Check any unbalance of the fans pointed out by anom...

Page 68: ...nit contains refrigerant gas and lubricating oil During discarding such fluids must be recovered and eliminated according to the regulations in force in the country where the unit is installed The unit must not be abandoned during discarding 24 4 Refrigerant Safety Card 24 4 1 SUPPLIER COMPANY AND PRODUCT IDENTIFICATION Card No FRIG 8 Product R 410A Supplier Company Identification RIVOIRA SpA 24 4...

Page 69: ...2h TWA 1000 ml m3 Pentafluoroethane R125 Recommended exposure limits AEL 8h and 12h TWA 1000 ml m3 Respiratory Tract Protection For rescue and for maintenance works in tanks use self contained breathing apparatus The vapours are heavier than air and can cause suffocation reducing the oxygen available for breathing Eye Protection Total protection glasses Hand Protection Rubber gloves Hygiene Measur...

Page 70: ...ecured and make sure the valve of the container is closed and does not leak make sure the blind cap of the valve when provided is correctly fitted make sure the cap when provided is correctly fitted and that there is an adequate ventilation passage ensure compliance with the current provisions 24 4 15 INFORMATION ON REGULATIONS The product must not be labelled according to Directive 1999 45 EC Com...

Page 71: ...ance with all the national and regional regulations Before using this product in any new process or trial an in depth study on safety and compatibility of the product with the materials must be carried out The above information is based on our current know how and describes the product according to the safety requirements It does not however represent a guarantee and assurance of the qualities in ...

Page 72: ...5422 F 01276 685405 E info strebel co uk I www strebel co uk STREBEL LTD RESERVE THE RIGHT TO CHANGE ANY SPECIFICATIONS ON THIS BOILER RANGE WITHOUT NOTICE Further information on our complete product range is available from our website CAST IRON CONDENSING STEEL SHELL WATER HEATERS RENEWABLES FLUES ACCESSORIES ...

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