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BA Systems—Petershvilevej 1—DK-3200 Helsinge—http://www.basystems.dk 

26 

 

BAS 918S/929S 

 

Manual 

Scheme 2, process diagram: 

 

BAS918S or BAS929S 

 
 

Centralvarme blandesløjfe med varmtvandsbeholder 

AI1 

AI2 

AI3 

AI5 

AI7 

AI6 

DI1 

DO2 

DO1 

AO2 

AO1 

 

Central heating (CH) and Hot water tank (HWT) 

Summary of Contents for BAS 918S

Page 1: ...BA Systems Petershvilevej 1 DK 3200 Helsinge http www basystems dk BAS 918S 929S Manual Manual BAS 918S 929S...

Page 2: ...nfiguration 17 Scheme list 18 Scheme introduction 19 Scheme 1 Central heating 20 Scheme 2 Central heating and Hot water tank 26 Scheme 3 Central heating with Heat Exchanger 35 Scheme 4 Central heating...

Page 3: ...ace Technical data Power supply 24VAC DC or 240VAC Power 6W Digital outputs Solid state relay BAS918S 6 channals BAS929S 11 channels Max 1A ved 240VAC DC must be protected against inductive loads Ther...

Page 4: ...basystems dk 4 BAS 918S 929S Manual Materials included 1 Produkt socket 2 Produkt front 3 4 pcs of 3 9mm x 32 mm screws for wall mount 4 Cable relief bracket for cable retention at socket 5 2 pcs of 3...

Page 5: ...connector end of the front See illustration below Cut out area when cables inserted from behind Cut out area when cables inserted from this end Use a sharp knife to cut the plastic along or within th...

Page 6: ...9S Manual Installation Generic socket connections are defined in placement and function in the following draw ings and descriptions This indicates the maximum I O configuration for the BAS9XXS control...

Page 7: ...BA Systems Petershvilevej 1 DK 3200 Helsinge http www basystems dk 7 BAS 918S 929S Manual Controller profile...

Page 8: ...BA Systems Petershvilevej 1 DK 3200 Helsinge http www basystems dk 8 BAS 918S 929S Manual Controller front Dimensions for wall mount are indicated from above drawing...

Page 9: ...Up to 24V drive 24VAC DC power supply for extend ed drive capability Max 20W pr channal STPA Secondary Stepper motor connection As above 2 terminals combined with AO cur rent output capability Not co...

Page 10: ...ordered The intension with this is to assemble Nul and Phase connections internally distributing connections from here Only one supply line into the controller is then required Alternative use will al...

Page 11: ...nt configuration capabilities for each individual channel More information is seen on page 9 All channels are galvanic interconnected as well as connected to the internal controlling circuit An advant...

Page 12: ...1000 2 x 0 4mA 20mA 2 x 0 2V 10V minimum 12 wires will be required If one cable is used for analog signals mixed with supply wires for pumps valves or motors it may be necessary to use twisted pair ca...

Page 13: ...AO X _I See page 15 The signal reference for 3 and 4 for voltage as well as current loop terminals are located on AO3 and AO4 For inspiration see the following example Example Motor Valve connection S...

Page 14: ...below Only authorized personel may do module mounting So when requesting this option the controller must be ordered with this included from the supplier Connection For cabled bus interfaces below mod...

Page 15: ...ach controlling scheme The controller is always using BACnet port BAC0 47808 and is given the name BAS9XXS Device The controller ID can be configured by the menu system operated through the scroll but...

Page 16: ...BA Systems Petershvilevej 1 DK 3200 Helsinge http www basystems dk 16 BAS 918S 929S Manual BAS 918S configuration...

Page 17: ...BA Systems Petershvilevej 1 DK 3200 Helsinge http www basystems dk 17 BAS 918S 929S Manual BAS 929S configuration...

Page 18: ...sections will define a process diagram cabling according to this and a description of Modbus parameters availa ble The list below defines available schemes 1 Central heating 2 Central heating and Hot...

Page 19: ...ed Only one outdoor sensor is required for an installation Scaling For metering applications a conversion factor must be defined This is called scaling So when a controlling scheme is selected a scali...

Page 20: ...BA Systems Petershvilevej 1 DK 3200 Helsinge http www basystems dk 20 BAS 918S 929S Manual Scheme 1 process diagram Central heating CH BAS918S or BAS929S AI3 AI1 AI2 DI1 DO1 AO1...

Page 21: ...he components Circulation pump and Motor valve is to be supplied by 240VAC 240VAC installation DO8B DO8A DO4B DO4A DO5B DO5A DO6B DO6A DO7B DO7A DO3B DO3A 240VAC N 240VAC L 24VAC L 24VAC N DO1B DO1A D...

Page 22: ...sumes that Circulation pump and Motor valve is selected to support the same supply as the controller 24VAC or 24VDC installation DO8B DO8A DO4B DO4A DO5B DO5A DO6B DO6A DO7B DO7A DO3B DO3A 240VAC N 24...

Page 23: ...perature also called climate compensation defined as follows Outdoor temperature Forward temperature Values in C At daytime the circulation pump is stopped when the temperature exceeds 20 C The pump i...

Page 24: ...rward temp at 0 C outdoor temp 9 x Forward temp at 5 C outdoor temp 10 x Forward temp at 10 C outdoor temp 11 x Forward temp at 15 C outdoor temp 12 x Forward temp at 20 C outdoor temp 13 x Night comp...

Page 25: ...p CV1_Tp10 Forward temp at 15 C outdoor temp CV1_Tp15 Forward temp at 20 C outdoor temp CV1_Tp20 Night compensation CV1_NATSNK Night compensation until this temperature CV1_NAT_MAX No night compensati...

Page 26: ...Helsinge http www basystems dk 26 BAS 918S 929S Manual Scheme 2 process diagram BAS918S or BAS929S Centralvarme blandesl jfe med varmtvandsbeholder AI1 AI2 AI3 AI5 AI7 AI6 DI1 DO2 DO1 AO2 AO1 Central...

Page 27: ...plied by 240VAC DO8B DO8A DO4B DO4A DO5B DO5A DO6B DO6A DO7B DO7A DO3B DO3A 240VAC N 240VAC L 24VAC L 24VAC N DO1B DO1A DO2B DO2A DI4 DI3 DO9B DO9A DO10B DO10A DO11B DO11A DI2 DI1 AI5 AI5 AI1 AI1 AI2...

Page 28: ...cted to support the same supply as the controller DO8B DO8A DO4B DO4A DO5B DO5A DO6B DO6A DO7B DO7A DO3B DO3A 240VAC N 240VAC L 24VAC L 24VAC N DO1B DO1A DO2B DO2A DI4 DI3 DO9B DO9A DO10B DO10A DO11B...

Page 29: ...perature also called climate compensation defined as follows Outdoor temperature Forward temperature Values in C At daytime the circulation pump is stopped when the temperature exceeds 20 C The pump i...

Page 30: ...om 0 100 Hot Water Tank temperature regulation values are given by a Day setpoint and as a Night setpoint Each controlled by a timer By default the day value is 55 C and night value 45 C Default timer...

Page 31: ...d temp at 0 C outdoor temp 9 x Forward temp at 5 C outdoor temp 10 x Forward temp at 10 C outdoor temp 11 x Forward temp at 15 C outdoor temp 12 x Forward temp at 20 C outdoor temp 13 x Night compensa...

Page 32: ...signed integer 16 bit signed integer Hot Water Tank control Daytime setpoint 21 x Nighttime setpoint 22 x Return limiter maximum temperature 23 x Legionalla process 0 Off 1 Sunday 2 Monday 7 Saturday...

Page 33: ...V1_Tp10 Forward temp at 15 C outdoor temp CV1_Tp15 Forward temp at 20 C outdoor temp CV1_Tp20 Night compensation CV1_NATSNK Night compensation until this temperature CV1_NAT_MAX No night compensation...

Page 34: ...Return limiter maximum temperature VB1_Retmax Legionalla process 0 Off 1 Sunday 2 Monday 7 Saturday 8 All days VB1_Legio Return limiter forced set point VB1_Set_beg Pump state 0 Off 1 On _VB1_CP401 S...

Page 35: ...BA Systems Petershvilevej 1 DK 3200 Helsinge http www basystems dk 35 BAS 918S 929S Manual Scheme 3 process diagram Central heating with Heat Exchanger BAS918S or BAS929S AI1 AI2 AI3 AI4 DI1 AO1 DO1...

Page 36: ...components Circulation pump and Motor valve is to be supplied by 240VAC DO8B DO8A DO4B DO4A DO5B DO5A DO6B DO6A DO7B DO7A DO3B DO3A 240VAC N 240VAC L 24VAC L 24VAC N DO1B DO1A DO2B DO2A DI4 DI3 DO9B D...

Page 37: ...ng assumes that Circulation pump and Motor valve is selected to support the same supply as the controller DO8B DO8A DO4B DO4A DO5B DO5A DO6B DO6A DO7B DO7A DO3B DO3A 240VAC N 240VAC L 24VAC L 24VAC N...

Page 38: ...perature also called climate compensation defined as follows Outdoor temperature Forward temperature Values in C At daytime the circulation pump is stopped when the temperature exceeds 20 C The pump i...

Page 39: ...orward temp at 0 C outdoor temp 9 x Forward temp at 5 C outdoor temp 10 x Forward temp at 10 C outdoor temp 11 x Forward temp at 15 C outdoor temp 12 x Forward temp at 20 C outdoor temp 13 x Night com...

Page 40: ...1_Tp10 Forward temp at 15 C outdoor temp CV1_Tp15 Forward temp at 20 C outdoor temp CV1_Tp20 Night compensation CV1_NATSNK Night compensation until this temperature CV1_NAT_MAX No night compensation b...

Page 41: ...levej 1 DK 3200 Helsinge http www basystems dk 41 BAS 918S 929S Manual Scheme 4 process diagram Central heating with heat exchanger and hot water supply BAS918S or BAS929S AI3 AI4 AI1 AI5 AI2 AI7 AI6...

Page 42: ...DO4B DO4A DO5B DO5A DO6B DO6A DO7B DO7A DO3B DO3A 240VAC N 240VAC L 24VAC L 24VAC N DO1B DO1A DO2B DO2A DI4 DI3 DO9B DO9A DO10B DO10A DO11B DO11A DI2 DI1 AI5 AI5 AI1 AI1 AI2 AI2 AI3 AI3 AI4 AI4 AI10...

Page 43: ...supply as the controller DO8B DO8A DO4B DO4A DO5B DO5A DO6B DO6A DO7B DO7A DO3B DO3A 240VAC N 240VAC L 24VAC L 24VAC N DO1B DO1A DO2B DO2A DI4 DI3 DO9B DO9A DO10B DO10A DO11B DO11A DI2 DI1 AI5 AI5 AI...

Page 44: ...perature also called climate compensation defined as follows Outdoor temperature Forward temperature Values in C At daytime the circulation pump is stopped when the temperature exceeds 20 C The pump i...

Page 45: ...om 0 100 Hot Water Tank temperature regulation values are given by a Day setpoint and as a Night setpoint Each controlled by a timer By default the day value is 55 C and night value 45 C Default timer...

Page 46: ...rd temp at 0 C outdoor temp 9 x Forward temp at 5 C outdoor temp 10 x Forward temp at 10 C outdoor temp 11 x Forward temp at 15 C outdoor temp 12 x Forward temp at 20 C outdoor temp 13 x Night compens...

Page 47: ...signed integer 16 bit signed integer Hot Water Tank control Daytime setpoint 21 x Nighttime setpoint 22 x Return limiter maximum temperature 23 x Legionalla process 0 Off 1 Sunday 2 Monday 7 Saturday...

Page 48: ...V1_Tp10 Forward temp at 15 C outdoor temp CV1_Tp15 Forward temp at 20 C outdoor temp CV1_Tp20 Night compensation CV1_NATSNK Night compensation until this temperature CV1_NAT_MAX No night compensation...

Page 49: ...Return limiter maximum temperature VB1_Retmax Legionalla process 0 Off 1 Sunday 2 Monday 7 Saturday 8 All days VB1_Legio Return limiter forced set point VB1_Set_beg Pump state 0 Off 1 On _VB1_CP401 S...

Page 50: ...Systems Petershvilevej 1 DK 3200 Helsinge http www basystems dk 50 BAS 918S 929S Manual Scheme 5 process diagram Dual Central heating BAS918S or BAS929S CH1 CH2 AI1 AI2 AI3 AI6 AI5 DI1 DO1 DO2 AO1 AO...

Page 51: ...ve is to be supplied by 240VAC DO8B DO8A DO4B DO4A DO5B DO5A DO6B DO6A DO7B DO7A DO3B DO3A 240VAC N 240VAC L 24VAC L 24VAC N DO1B DO1A DO2B DO2A DI4 DI3 DO9B DO9A DO10B DO10A DO11B DO11A DI2 DI1 AI5 A...

Page 52: ...r valve is selected to support the same supply as the controller DO8B DO8A DO4B DO4A DO5B DO5A DO6B DO6A DO7B DO7A DO3B DO3A 240VAC N 240VAC L 24VAC L 24VAC N DO1B DO1A DO2B DO2A DI4 DI3 DO9B DO9A DO1...

Page 53: ...perature also called climate compensation defined as follows Outdoor temperature Forward temperature Values in C At daytime the circulation pump is stopped when the temperature exceeds 20 C The pump i...

Page 54: ...rd temp at 0 C outdoor temp 9 x Forward temp at 5 C outdoor temp 10 x Forward temp at 10 C outdoor temp 11 x Forward temp at 15 C outdoor temp 12 x Forward temp at 20 C outdoor temp 13 x Night compens...

Page 55: ...orward temp at 0 C outdoor temp 29 x Forward temp at 5 C outdoor temp 30 x Forward temp at 10 C outdoor temp 31 x Forward temp at 15 C outdoor temp 32 x Forward temp at 20 C outdoor temp 33 x Night co...

Page 56: ...V1_Tp10 Forward temp at 15 C outdoor temp CV1_Tp15 Forward temp at 20 C outdoor temp CV1_Tp20 Night compensation CV1_NATSNK Night compensation until this temperature CV1_NAT_MAX No night compensation...

Page 57: ...emp CV2_Tp10 Forward temp at 15 C outdoor temp CV2_Tp15 Forward temp at 20 C outdoor temp CV2_Tp20 Night compensation CV2_NATSNK Night compensation until this temperature CV2_NAT_MAX No night compensa...

Page 58: ...shvilevej 1 DK 3200 Helsinge http www basystems dk 58 BAS 918S 929S Manual Scheme 6 process diagram Dual Central heating with Heat Exchanger BAS918S or BAS929S CH1 CH2 AI2 AI4 AI3 AI1 AI5 AI7 AI6 DI1...

Page 59: ...DO5B DO5A DO6B DO6A DO7B DO7A DO3B DO3A 240VAC N 240VAC L 24VAC L 24VAC N DO1B DO1A DO2B DO2A DI4 DI3 DO9B DO9A DO10B DO10A DO11B DO11A DI2 DI1 AI5 AI5 AI1 AI1 AI2 AI2 AI3 AI3 AI4 AI4 AI10 AI10 AI6 A...

Page 60: ...the controller DO8B DO8A DO4B DO4A DO5B DO5A DO6B DO6A DO7B DO7A DO3B DO3A 240VAC N 240VAC L 24VAC L 24VAC N DO1B DO1A DO2B DO2A DI4 DI3 DO9B DO9A DO10B DO10A DO11B DO11A DI2 DI1 AI5 AI5 AI1 AI1 AI2 A...

Page 61: ...perature also called climate compensation defined as follows Outdoor temperature Forward temperature Values in C At daytime the circulation pump is stopped when the temperature exceeds 20 C The pump i...

Page 62: ...rd temp at 0 C outdoor temp 9 x Forward temp at 5 C outdoor temp 10 x Forward temp at 10 C outdoor temp 11 x Forward temp at 15 C outdoor temp 12 x Forward temp at 20 C outdoor temp 13 x Night compens...

Page 63: ...x Forward temp at 0 C outdoor temp 29 x Forward temp at 5 C outdoor temp 30 x Forward temp at 10 C outdoor temp 31 x Forward temp at 15 C outdoor temp 32 x Forward temp at 20 C outdoor temp 33 x Nigh...

Page 64: ...V1_Tp10 Forward temp at 15 C outdoor temp CV1_Tp15 Forward temp at 20 C outdoor temp CV1_Tp20 Night compensation CV1_NATSNK Night compensation until this temperature CV1_NAT_MAX No night compensation...

Page 65: ...emp CV2_Tp10 Forward temp at 15 C outdoor temp CV2_Tp15 Forward temp at 20 C outdoor temp CV2_Tp20 Night compensation CV2_NATSNK Night compensation until this temperature CV2_NAT_MAX No night compensa...

Page 66: ...t push enters the editing mode Now a value may be changed using the scroll wheel Two short pushes terminates editing mode One long push cancels editing To access the Service Menu a PIN code must be in...

Page 67: ...the options When the re quested controlling scheme is displayed push the button and the selection is made Please note that the schemes shown below are just for illustration They may not represent the...

Page 68: ...follows Now scroll to the parameter to be changed position shown with reverse marking Push one time and the variable to the right may be changed by scrolling between options Enter one short push and...

Page 69: ...y IP addresses and configuration options for this Configurations must be made to support the actual network segment This way the controller web page and data may be accessed from the network either fr...

Page 70: ...ort push enters the menu a long push leaves the menu A long push will always exit the submenu and eventually re turn to the active scheme diagram Submenu Actual is shown below as an example Central he...

Page 71: ...until all digits has been set Finally 2 short pushes will store the complete value and editing is done As shown below a key sign might be shown on a line In that case a password must be en tered in t...

Page 72: ...ion used must open port 75 and port 80 from the internet using NAT so port data may be routed to the controller Watch screen This menu allow settings of current time GMT offset Daylight saving time on...

Page 73: ...web browser and a dedicated application must be installed The following operating systems are supported Windows Linux MAC OS Android The Android application is downloaded from the BA Systems WEB page...

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