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HAMWORTHY HEATING LTD

38

Merley Boiler Sequence Controller

500001210/D

DHW storage tank

5020

F

Flow setpoint boost

16

0

30

°C

5021

F

Increase of transfer boost

8

0

30

°C

5022

F

Type of charging

with B3 ¦ With B3 and B31 ¦ Legionella B3 and B31

With B3 and B31

5050

F

Charging temperature maximum

80

8

BZ 5051 OEM

°C

5060

F

Electric immersion heater operating mode

Substitute ¦ Summer ¦ Always

Substitute

-

5061

F

Electric immersion heater release

24h/day ¦ DHW release¦ Time program4/ DHW

DHW release

-

5062

F

Electric immersion heater control

External thermostat ¦ DHW sensor

DHW sensor

-

5085

F

Excess heat draw

Off ¦ On

On

-

5092

F

With primary controller / system pump

No ¦ Yes

No

5101

6)

F

Pump speed minimum

40

0

100

%

5102

6)

F

Pump speed maximum

100

0

100

%

Configuration

5710

I

Heating circuit 1

Off ¦ On

On

-

5730

I

DHW sensor B3

Sensor ¦ Thermostat

Sensor

-

5731

I

DHW control element Q3

None ¦ Charging pump ¦ Diverting valve

charging pump

-

5736

I

Separate DHW circuit

Off ¦ On

Off

-

5890

I

Relay output QX1

None ¦ Circulating pump Q4 ¦ Electric immersion heater
DHW K6 ¦ H1 pump Q15 ¦ Boiler pump Q1 ¦ Alarm output
K10 ¦ 2nd pump speed HC1 Q21 ¦ ¦ H pump Q18 ¦ System
pump Q14 ¦ Heat generator shutoff valve Y4 ¦Time
program 5 K13 ¦ H3 pump Q19 ¦ Flue gas relay K17 ¦
Assisted firing fan K30 ¦ Cascade pump Q25 ¦ DHW
mixing pump Q35 ¦ DHW internal circulating pump Q33 ¦
Heat request K27 ¦

None

-

°C

5891

6)

I

Relay output QX2

None ¦ Circulating pump Q4 ¦ Electric immersion heater
DHW K6 ¦ Collector pump Q5 ¦ H1 pump Q15 ¦ Boiler
pump Q1 ¦ Alarm output K10 ¦ 2nd pump speed HC1 Q21
¦ H pump Q18 ¦ System pump Q14 ¦ Heat generator
shutoff valve Y4 ¦Time program 5 K13 ¦ H3 pump Q19 ¦
Cascade pump Q25 ¦ DHW mixing pump Q35 ¦ DHW
internal circulating pump Q33 ¦ Heat request K27 ¦

None

-

95

5930

I

Sensor input BX1

None ¦ DHW sensor B31 ¦ Return sensor B7 ¦ DHW
circulation sensor B39 ¦ Common flow sensor B10

¦ DHW charging sensor B36 ¦ Common return sensor B73
¦ Cascade return sensor B70 ¦

None

-

°C

5950

I

Function of input H1

Operating mode changeover HCs + DHW ¦ Operating
mode changeover HCs ¦ Operating mode changeover
HC1 ¦ Heat generation lock ¦ Error/alarm message ¦
Minimum flow temperature setpoint ¦

Heat request 10V ¦ Room temperature 10V

Operating mode changeover

HCs+DHW

-

-

5951

I

Operating action of contact H1

NC ¦ NO

NO

-

5952

I

Minimum flow temperature setpoint H1

70

120

°C

8

5954

I

Temperature value 10V H1

100

130

°C

5

Op

er

ating

Lin

e

Us

e

r Le

vel

Fu

nction

De

fault

Va

lu

e

Max

imum

Min

imum

Unit

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Содержание Merley

Страница 1: ...ONTROLLER For Modular Boiler Installations Installation Commissioning and Operating Instructions IMPORTANT NOTE THESE INSTRUCTIONS MUST BE READ AND UNDERSTOOD BEFORE INSTALLING COMMISSIONING OPERATING...

Страница 2: ......

Страница 3: ...EY BOILER SEQUENCE CONTROLLER For Modular Boiler Installations Installation Commissioning and Operating Instructions NOTE THESE INSTRUCTIONS SHOULD BE READ AND UNDERSTOOD BEFORE ATTEMPTING TO INSTALL...

Страница 4: ...it wireless 2 12 Outside Sensor wireless 2 13 Radio Repeater 3 0 Commissioning 22 4 0 Operation 23 4 1 Function 4 2 Display 5 0 Programming 30 5 1 User Levels 5 2 Overview of Settings 5 3 QAA55 6 0 Se...

Страница 5: ...ireless Outside Sensor 8 6 Radio Repeater 8 7 Sensor Characteristics Appendix A 97 Figure A1 Cascade with primary circuit pump Figure A2 Cascade with primary circuit pump Appendix B Wiring Schematics...

Страница 6: ...storage tank charging with 7 day program DHW charging with charging pump or diverting valve DHW charging with sensor DHW charging with a thermostat Selectable priority absolute shifting none Selectabl...

Страница 7: ...ces plant and applications as described above All requirements specified in chapters Handling and Technical data must be satisfied The local regulations for installation must be complied with HHL Refe...

Страница 8: ...nit Service Unit RU HMI HMI RU wired wired wired Basic Unit RVSxx Extension mod AVS75 max 2 BSB W LPB Local Process Bus Basic Unit RVS LPB Remote Service Tool Mobile SMS Pager Fax WEB Telephone Networ...

Страница 9: ...the Merley Boiler Sequence Controller the power supply must be turned off The connections for mains and low voltage must be separated The wiring must be made in compliance with the requirements of sa...

Страница 10: ...nge when mounted 0 50 C Power cables must be clearly segregated from low voltage cables sensors observing a distance of at least 100 mm 2 3 Mounting Location It is recommended that the control is moun...

Страница 11: ...emit the heat produced by it A clearance of at least 10 mm must be provided for the controller s cooling slots which are situated a the top and bottom of the housing The space should not be accessibl...

Страница 12: ...S 533901611 Protective earth Q2 1st heating circuit pump Y1 1st heating circuit mixing valve opening T 533901612 N Neutral conductor Protective earth Y2 1st heating circuit mixing valve closing N Neu...

Страница 13: ...perator unit boiler control panel AVS82 491 109 DB LPB data 533901614 MB LPB ground CL Room unit 1 data 533901615 CL Room unit 1 ground b 533901616 G Room unit power supply 12 V B3 DHW sensor top 5339...

Страница 14: ...are run in separate ducts trunking both within the panel and outside of the panel Failure to observe this requirement will compromise the operation of the control See note 2 6 Operator Unit Fitting i...

Страница 15: ...lowing points The place of installation should be chosen so that the sensor can capture the room temperature as accu rately as possible without getting adversely affected by direct solar radiation or...

Страница 16: ...nd Drilling 2282M02 96 96 91 47 1 2 2359Z27 4 2 56 60 56 60 2 8 Outside sensor QAC34 The sensor must be installed on an outside north facing wall away from any air vents pipes illuminated signs or any...

Страница 17: ...bout 1 5 meters above the floor In the case of wall mounting there must be sufficient clearance above the unit enabling it to be fitted and removed When the unit is removed from its base power is cut...

Страница 18: ...r 2 floors 2 10 1 Radio Module AVS71 390 The radio module extends the product range by introducing wireless communication With this type of device the system components such as room units transmit dat...

Страница 19: ...ture the room temperature as accurately as possible without getting adversely affected by direct solar radiation or other heat or refrigeration sources about 1 5 meters above the floor In the case of...

Страница 20: ...ng Trigger line 120 Then press OK 8 Set the setting knob to YES and press OK Connection establishment is started 9 The display shows the progress of connection establishment in This process can take 2...

Страница 21: ...should be chosen such that batteries can be easily changed 2 12 1 Mounting 2359Z30 2359Z33 2359Z32 2359Z31 2359Z54 2359Z59 2359Z55 AAA AAA 2359Z53 RF Transmitter Outside Sensor Battery transit tab Bat...

Страница 22: ...n is established when the LED on the radio module extinguishes 4 Press the button on the transmitter of the wireless outside sensor briefly again until the LED extinguishes 2359Z58 AAA AAA LED Button...

Страница 23: ...nstalled in the room unit Establishing the link 1 Press the button on the radio module for at least 8 seconds until the LED on the radio module starts flashing at high frequency 2 Press the button on...

Страница 24: ...Configuration For that purpose the relevant operating level is to be selected as follows If the programmable room unit is used press OK on the room unit to switch to programming Press the info button...

Страница 25: ...of DHW heating mode Quitting the setting Confirmation of setting Adjustment of room Comfort setpoint Presence button Displaying information 4 1 2 Operator unit Selection of DHW heating mode Selection...

Страница 26: ...e displayed by pressing the info button Possible displays Depending on the type of unit configuration and operating state some of the info lines listed below may not appear Display Possible error mess...

Страница 27: ...as operator unit 1 operating line 40 acting on all heating circuits operating line 42 and can only be readjusted on operating lines 44 46 and 48 Operating line 40 42 44 46 48 54 Room unit 1 Heating c...

Страница 28: ...t room sensor Room sensor The temperature display can be readjusted Line no Operating line 70 Software version Device data The display shows the current version of the room unit 4 1 3 Radio Line no Op...

Страница 29: ...re the maintenance special mode symbol appears Press the info button to switch to info display Manual mode where the setpoint can be adjusted Chimney sweep function The chimney sweep function is activ...

Страница 30: ...h between the different operating modes The selection made is indicated by a bar which appears below the respective symbol Automatic mode Automatic mode controls the room temperature according to the...

Страница 31: ...r which ap pears below the respective symbol DHW heating mode On The DHW is heated according to the selected switching program Off No DHW heating but the protective function is active DHW push Trigger...

Страница 32: ...e and the user level Operation Display example Description 1 0 4 8 12 16 20 24 AUTO 2359Z140 Roomtemperature Basic display If the basic display is not shown press the ESC button to return to it Press...

Страница 33: ...to do this manually By changing the setting the respective periods of time will be shortened or extended Increase Winter operation will start earlier Summer operation will start later Decrease Winter...

Страница 34: ...later Decrease Heating mode will start later changeover to ECO earlier The function is not active in operating mode Continuously Comfort temperature The display shows ECO To give consideration to the...

Страница 35: ...rcuit 2 Time program heatingcircuit P Holidays heating circuit 1 Diagnosticsof consumers Hours minutes Month day Year Start of summer time End of summer time Hours 1 24 h Minutes 0 60 min Example of M...

Страница 36: ...9Z139 OEM Time of day and date Operator section Wireless Time program heatingcircuit 1 Time program heatingcircuit 2 Time program heatingcircuit P Holidays heating circuit 1 Diagnosticsofconsumers Hou...

Страница 37: ...Temporarily Permanently Temporarily 26 F Operation lock Off On Off 27 F Programming lock Off On Off 28 I Direct adjustment Automatic storage Save with acknowledgment Save with acknowledgment 401 I Us...

Страница 38: ...Period 3 Period 4 Period 5 Period 6 Period 7 Period 8 Period 1 642 E Start 01 01 31 12 dd mm 643 E End 01 01 31 12 dd mm 648 E operating level Frost protection Reduced frost protection Heating Circui...

Страница 39: ...24h day Time programs HCs Time program 4 DHW Time programs HCs 1630 I charging priority Absolute Shifting None MC shifting PC absolute MC shifting PC absolute 1640 F Legionella function Off Periodical...

Страница 40: ...speed HC1 Q21 H pump Q18 System pump Q14 Heat generator shutoff valve Y4 Time program 5 K13 H3 pump Q19 Flue gas relay K17 Assisted firing fan K30 Cascade pump Q25 DHW mixing pump Q35 DHW internal cir...

Страница 41: ...Electric immersion heater DHW K6 H1 pump Q15 Boiler pump Q1 Bypass pump Q12 Alarm output K10 2nd pump speed HC1 Q21 H2 pump Q18 System pump Q14 Heat generator shutoff valve Y4 Time program 5 K13 H3 pu...

Страница 42: ...W charging alarm 1 48 h 6800 F History 1 6801 F Error code 1 0 255 6802 F History 2 6803 F Error code 2 0 255 6804 F History 3 6805 F Error code 3 0 255 6806 F History 4 6807 F Error code 4 0 255 6808...

Страница 43: ...I Boiler temp B2 0 140 C 7820 I Sensor temp BX1 28 350 C 7840 I Voltage signal H1 0 10 Volt 7841 I Contact state H1 Open Closed open State 8000 I State of heating circuit 1 8003 I State of DHW 8005 I...

Страница 44: ...0 8831 I DHW temp setpoint 80 C 8 8832 I DHW temp 2 140 C 0 8835 I DHW circulation temp 140 C 0 8836 I DHW charging temp 0 140 C 0 8850 I DHW primary controller temperature 0 140 C 0 8851 I DHW prima...

Страница 45: ...ls and segments Example of basic display 2354Z09 2354Z09 Display Selection of space heating mode This setting is used to switch between the different operating modes The selection made is indicated by...

Страница 46: ...mmer winter changeover ECO functions and automatic 24 hour heating limit active Heating to Comfort setpoint Heating to Reduced setpoint Adjusting the room temperature setpoint Turn the setting knob to...

Страница 47: ...g press on the presence button enables the service level to be accessed Configuration P1 1 factory setting Automatic storage A setpoint readjustment with the knob is adopt ed either by pressing the op...

Страница 48: ...c display is made after a maximum of 8 minutes or by pressing the operating mode button with the QAA78 only 2 minutes Continuously After pressing the info button a change back to the new basic display...

Страница 49: ...o reception Change battery 138 Service unit Missing Ready No reception Change battery 140 Delete all devices 6 4 Time programs Entering the switching times For the heating circuits and DHW heating a n...

Страница 50: ...42 Start 643 End 648 Operating level Frost protection Reduced The holiday program is used to switch the heating circuits to a selectable operating lev el according to calendar dates The holiday progra...

Страница 51: ...ive depending on the selected operating mode thus producing different temperature levels in the rooms The ranges of adjustable setpoints result from the interdependencies as this is shown in the follo...

Страница 52: ...the flow temperature especially when outside temperatures are low The programmed heating curve is based on a room setpoint of 20 C If the room setpoint is adjusted the heating curve automatically ada...

Страница 53: ...n can be activated although the heat generation lock is switched on Line no Operating line 5950 Function input H1 Operating mode changeover HCs DHW Operating mode changeover HC1 Heat generation lock E...

Страница 54: ...controller Central effect LPB When using LPB device address 1 excessive heat dissipation also acts on the consumers connected to the other controllers in the same segment The distribution of excessive...

Страница 55: ...nnections Mixing valve group 1 Q2 Y1 Y2 B1 Heating circuit 1 For this application the respective settings of operating page Heating circuit 1 can be adapted Return temp controller For this application...

Страница 56: ...ture control The authority of deviation is set as a percentage figure The better the reference room correct room temperature correct mounting location etc the higher the value can be set Example Appro...

Страница 57: ...tation does not work in the case of pure weather compensation OFF ON P C TRx TRw SDR 2371D02 TRw t TRx Actual value room temp TRw Room temperature setpoint SDR Room switching differential P Pump t Tim...

Страница 58: ...fort setpoint 20 C and Reduced setpoint 18 C Outside temperature composite Building time constant 0 2 5 10 15 20 50 15 C 0 3 1 7 7 15 3 23 30 6 76 6 10 C 0 1 3 3 3 6 7 10 13 4 33 5 5 C 0 0 9 2 1 4 3 6...

Страница 59: ...is used primarily in connection with heating systems with only little spare capacity e g low energy houses In such cases the heating up time would be too long at low outside temperatures When the Redu...

Страница 60: ...4 Actuator running time Actuator type The selection of the type of actuator determines the control behavior for the type of mixing valve actuator used Switching differential 2 pos For the 2 position a...

Страница 61: ...system pump depending on the type of plant Speed controlled pump Line no Operating line HC1 882 Pump speed min 883 Pump speed max Pump speed min The minimum speed of the heating circuit pump can be d...

Страница 62: ...oiler is used primarily for DHW Absolute priority The mixing and pump heating circuit stay locked until DHW heating is finished Shifting priority If the capacity of the heat source is not sufficient t...

Страница 63: ...ating line 1642 When using this setting heating up to the legionella setpoint takes place on the selected weekday independent of previous storage tank temperatures During the time the legionella funct...

Страница 64: ...the switch on delay ensures that plant operating conditions will be stable This prevents too frequent switching actions of the boilers cycling In the case of a DHW request the delay time is fixed at 1...

Страница 65: ...n the first and or the last boiler can be exempted from automatic changeover None The order of switching on the boilers changes when the number of hours set is reached operating line 3540 First The fi...

Страница 66: ...lectric immersion heater is only used if the boiler delivers a fault status message or has been shut down via boiler lock This means that in normal situations the DHW is always heated by the boiler Su...

Страница 67: ...6 Electric immersion heater control External thermostat The storage tank is charged with an external thermostat without setpoint compensation of the controller DHW sensor The storage tank is charged w...

Страница 68: ...he first 10 seconds 6 11 Configuration Heating circuits Line no Operating line HC1 5710 Heating circuit 1 Using this setting the heating circuit can be switched on and off Use of mixing valve 1 DHW se...

Страница 69: ...an the setpoint adjustment on the thermostat thermostat calibrated at switch off point The flow temperature setpoint for DHW must be set to a minimum of 10 C has an impact on the charging time In that...

Страница 70: ...5060 of the electric immersion heater s operating mode must be appropriately set Pump H1 Q15 Pump H1 can be used for an additional consumer Together with an external request for heat at input H1 it i...

Страница 71: ...ll be deactivated followed by overrun Cascade pump Q25 Common boiler pump for all boilers in a cascade DHW mixing pump Q35 Separate pump for storage tank circulation during the time the legionella fun...

Страница 72: ...ervice operating line 7139 In Economy mode the heat source K27 with QX or output UX operates as follows Off Remains locked Only DHW Released for DHW charging On Always released Heat required in econom...

Страница 73: ...currently active At the moment the controller supplies some of the power required by the bus Parameter reset Line no Operating line 6205 Reset to default parameters All parameters can be reset to the...

Страница 74: ...perating line Action changeover functions either the heating circuits in the segment or those of the entire system are switched based on operating line 730 Line no Operating line 6620 Action changeove...

Страница 75: ...e temperature sensor is required in the LPB plant This sensor is connected to a freely selectable controller and delivers via LPB the signal to the controllers without sensor The first numeral to appe...

Страница 76: ...propriately configured This setting can be used to reset the alarm relay Temperature alarms Line no Operating line 6740 Flow temp 1 alarm 6741 Flow temp 2 alarm 6743 Boiler temp alarm 6745 DHW chargin...

Страница 77: ...er of burner operating hours or the selected number of burner starts has elapsed a service message will be displayed Counted for the message are the number of operating hours and the number of starts...

Страница 78: ...by setting on this operating line or automatically after a timeout of 1 hour Name relay State DHW Charging pump Q3 On Diverting valve Q3 Off Mixing pump Q32 Off Intermediate circuit pump Q33 On Mixing...

Страница 79: ...d the temperatures are available again when simulation is completed The function is deactivated by setting on this operating line or automatically after a timeout of 1 hour Telephone customer service...

Страница 80: ...ive Manual control active 4 Heating mode restricted 106 Forced discharging DHW 108 Forced heat release 110 Overrun active 17 Forced heat release 110 Opt start control boost heating 111 Optimum start c...

Страница 81: ...harging electric legionella setpoint 87 Charging electric nominal setpoint 88 Charging electric Red setpoint 89 Charging electric frost setpoint 90 Electric immersion heater released 91 Charging elect...

Страница 82: ...ion active Minimum limitation active 22 Protective start up 11 Protective startup low fire 12 Return limitation 13 Return temperature limitation low fire 14 In operation 18 In operation for HC DHW In...

Страница 83: ...mperature primary controller sensor error 6 40 Return temperature 1 sensor error 6 46 Return temperature cascade sensor error 6 47 Common return temperature sensor error 6 50 DHW temperature 1 sensor...

Страница 84: ...sage 3 171 Alarm contact 1 H1 active 6 172 Alarm contact 2 H2 active 6 173 Alarm contact 3 EX2 230VAC active 6 174 Alarm contact 4 H3 active 6 178 Temperature limiter heating circuit 1 3 217 Sensor er...

Страница 85: ...Maintenance interval exceeded 6 10 Replace battery of outside sensor 6 21 Maximum flue gas temperature exceeded 6 22 Water pressure 3 heating circuit too low dropped below lower pressure limit 3 9 6 1...

Страница 86: ...e pump Q33 DHW intermediate circuit pump Y1 1st Heating circuit mixing valve Y4 Heat source shutoff valve Y7 Maintained boiler return temperature Y19 Primary controller Y31 DHW primary controller mixi...

Страница 87: ...7 1 1 Basic diagram RVS63 243 Standard diagram cascade pump Combined DHW heating with pump valve cascade pump B9 T T T T BX1 Q25 Q3 Boiler 1 Boiler 2 Boiler 3 Low loss header Q2 Rg1 B3 B9 T T T T T BX...

Страница 88: ...e and number of extra functions that can be applied depend on the multifunctional outputs and inputs QX or BX Depending on the type of application the use of extra functions necessitates a number of a...

Страница 89: ...y Boiler Sequence Controller 500001210 D 7 2 1 DHW storage tank DHW 7 2 2 Low Loss Header Common flow sensor B10 2358A25 Q3 DHW circulating pump DHW electric immersion heater Q4 Q3 Electric immersion...

Страница 90: ...operation to EN 60 730 1 B automatic Inputs Digital inputs H1 and H2 safety extra low voltage for potential free low voltage contacts voltage with contact open DC 12 V current with contact closed DC 3...

Страница 91: ...l area 2 wire connection not interchangeable 200 m 400 m max cable capacitance 60 nF 0 5 mm2 LPB with bus power supply via controller per controller With central bus power supply Bus loading number co...

Страница 92: ...on of housing to EN 60 529 IP20 for QAA7 QAA55 IP40 for AVS37 IP20 when mounted Normal pollution Safety class to EN 60 730 low voltage carrying parts meet the require ments of safety class III if corr...

Страница 93: ...class III if correctly in stalled Degree of pollution to EN 60 730 Normal pollution Standards safety EMC etc CE conformity to EMC directive Immunity Emissions Low voltage directive Electrical safety R...

Страница 94: ...ine size AAA LR03 Battery life approx 2 years Interfaces RF transmitter BSB RF frequency band 868 MHz Degree of protection and safety class Degree of protection of housing to EN 60 529 IP20 Safety cla...

Страница 95: ...50 C non condensing Outside temperature acquisition Outside Sensor QAC34 101 Measuring range 50 70 C cable length max 5 m Weight Without packaging Radio transmitter 160 g Outside sensor QAC34 73 g Ca...

Страница 96: ...ctive Electrical safety Radio 89 336 EEC EN 61000 6 2 EN 61000 6 3 73 23 EEC EN 60730 1 EN 50090 2 2 EN 300 220 1 25 1000MHz Climatic conditions Storage to IEC721 3 1 class 1K3 temp 20 65 C Transport...

Страница 97: ...86 9 0 1 920 39 0 595 20 0 7 578 10 0 1 840 40 0 575 19 0 7 193 11 0 1 763 41 0 555 18 0 6 831 12 0 1 690 42 0 536 17 0 6 489 13 0 1 621 43 0 517 16 0 6 166 14 0 1 555 44 0 500 15 0 5 861 15 0 1 492 4...

Страница 98: ...6 185 0 85 30 0 8059 110 0 508 190 0 77 35 0 6535 115 0 443 195 0 70 40 0 5330 120 0 387 200 0 64 45 0 4372 125 0 339 8 7 2 NTC 10 k 8 7 3 PT1000 T C R Ohm T C R Ohm T C R Ohm 30 882 2 50 1194 0 130 1...

Страница 99: ...HAMWORTHY HEATING LTD 97 Merley Boiler Sequence Controller 500001210 D APPENDIX A System Schematics Figure A1 Cascade with primary circuit pump...

Страница 100: ...mp Boiler 1 Boiler 2 Boiler 3 Low loss header Mixing Valve Heating Pump Heating circuit flow sensor Room sensor Immersion heater DHW temperature sensor or thermostat 1 1 1 2 2 2 Supply 230V 50Hz Remot...

Страница 101: ...unication to boilers ground signal Radio module for use with wireless programmable room sensor or external air sensor Supply 230V 1 phase 50Hz Fused 10 Amps DHW primary pump relay contactor required 2...

Страница 102: ...Sequence Controller 500001210 D Figure B2 Wireless configuration Programmable Room Sensor 30m Max 30m Max 30m Max Power Supply 230V Radio Repeater Module Radio Module Sequence Controller BUS Boiler 1...

Страница 103: ...the boilers are ever powered down it automatically resets the time and you don t end up with it constantly flashing on the display Internal Clock sensors required common flow sensor and outside tempe...

Страница 104: ...summer winter heating limit switches off the heating when the outside temperature gets to this level function can be switched off set to if required 8 DHW note if the dhw time program is to be the sam...

Страница 105: ...t The set point for 10V can be set using parameter 5952 in the range 0 90 C The maximum setting of 90 C is a result of the application with the boiler LMU control which has a maximum setting of 90 C a...

Страница 106: ...HAMWORTHY HEATING LTD 104 Merley Boiler Sequence Controller 500001210 D APPENDIX D Wiring for Primary Pump when using Cascade Controller...

Страница 107: ......

Страница 108: ...12 Ireland tel 00 353 141 91919 fax 00 353 145 84806 email info hevac ie Scotland Sales Service McDowall Modular Services 2 Penson Road Queenslie Industrial Estate Glasgow G33 4AG tel 0141 336 8795 fa...

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