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Prestige 120, Installation, Operating And Maintenance Instructions

The Husqvarna 120 brings power and precision to your outdoor tasks. Unlock its full potential with the Operator's Manual, providing step-by-step instructions for effortless operation. You can conveniently download this manual for free from our website, enabling you to harness the full capabilities of your Husqvarna 120.

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EN • 12

ENGLISH

FRANCAIS

NEDERLANDS

ES

p

A

ño

L

IT

ALIAN

o

DE

u

TSCH

664Y3300

230V 

Br 

B 

Br 

B 

Y/Gr 

M 

M 

P

P

t 

BUS B 

BUS A 

X11. 

X12. 

Br 

B 

Y/Gr 

Br 

B 

B 

Br 

B 

R 

Bk 

V 

W 

Y/Gr 

B 

Br 

B 

Br 

G 

R 

R

V

G 

R

V

Or 

Or

V

G

R 

W 

V 

R 

Bk 

B 

Or 

Br 

R 

R 

B 

Br 

B 

R 

B 

Br 

Or 

Bk 

Bk 

V 

G 

Or 

B 

Bk 

Br 

R 

Bk 

Br 

G 

R 

B 

V 

Y/Gr 

Y/Gr 

B 

W 

B 

R 

Y/Gr 

Y/Gr 

B 

R 

B 

B 

B 

B 

Br 

EV2 

EV1 

t

X1.6 

X1.5 

X1.4 

X1.3 

X1.2 

X7 

X10.6 

X10.7 

X10.1 

X10.3 

X1.1 

X2.12 

X2.11 

X2.10 

X2.9 

X2.8

X2.6 

X2.5 

X2.4 

X2.3 

X2.2 

X2.1 

X3.6 

X3.5 

X3.4 

X3.3 

X3.2 

X3.1 

X4.3 

X4.2 

X4.1 

X5.4 

X5.3 

X5.2 

X5.1 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

1 

2 

3 

4 

5 

6 

ELECTRICAL CoNNECTIoN

WIrIng dIagram:

 

 prestIge solo 120

  1.  230V power cord

  2.  On/Off switch

  3.  Heating circulator (optional)

  4.  Domestic hot water circulator (optional)

  5.  Burner feed

  6.  Gas valve 1

  7.  Gas valve 2

  8.  230 Volt - 24 Volt transformer

  9.  MCBA

 10.  Display

11.   Safety thermostat

 12.  Gas pressure switch

B. 

Blue

Bk. 

Black

Br. 

Brown

G.  

Grey

Or. 

Orange

R.  

Red

V.  

Violet

W.  

White

Y/Gr.  Yellow/Green

 13.  Low-water pressure switch

 14.  Burner PWM plug

 15.  NTC1 flow sensor

 16.  NTC2 return sensor

 17.  NTC5 flue-gas temperature sensor

 18.  Room thermostat (optional)

 19.  NTC3 domestic hot water sensor (optional)

 20.  NTC4 Outside temperature sensor (optional)

 21.  NTC6 flow sensor for second heating circuit (optional)

 22.  Zero volt of the 24 Volt circuit

 23.  RAM high limit thermostat (optional)

 24.  ignition and ionisation cable

1

2

3

4

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11

Summary of Contents for 120

Page 1: ...EN 1 ENGLISH FRANCAIS NEDERLANDS español ITALIANO deutsch 664Y3300 Installation operating and maintenance instructions Prestige 50 75 120 ...

Page 2: ... Adjusting the power Prestige Solo 120 16 Propane conversion 17 Configuration 1 control by room thermostat and outdoor temperature sensor 18 Configuration 2 control by Room Unit and outdoor temperature sensor 20 Configuration 3 control by room thermostat and AM3 11 module 22 Configuration 4 control by Room Unit and ZMC 1 module 26 Commissioning and Maintenance 30 Commissioning of the installation ...

Page 3: ...paired by an approved installer in accordance with current standards in force The manufacturer declines all liability for any damage caused as a result of incorrect installation or in the event of the use of appliances or accessories that are not specified by the manufacturer The manufacturer reserves the right to change the technical characteristics and features of its products without prior noti...

Page 4: ...rd spare parts that are easily available on the market Temperature control The basic version of the Prestige is fitted with a regulator controlled by an MCBA microprocessor Micro Controlled Boiler Automate which handles the safety functions ignition flame monitoring temperature limitation etc and the temperature control of the boiler This MCBA also features a regulator governed by outdoor weather ...

Page 5: ...himney connection Ø 100 150 mm 6 Chimney tube 7 Gas pressure switch 8 Electrical panel 9 Control panel Prestige Solo 120 1 Chimney connection Ø 100 mm 2 Chimney tube 3 Auto air vent 4 Stainless steel heater body 5 Safety valve 6 Low water level pressure switch 7 Air intake connection Ø 100 mm 8 Modulating Air Gas premix burner 9 Gas valve 10 Safety thermostat 11 Electrical panel 12 Gas pressure sw...

Page 6: ...erature press the or keys until the temperature indicated by the last two digits is the desired temperature Press store to save the setting Press mode twice to return to normal operating mode Standby Fault The temperature setting of the appliance and the safety functions of its various parts are constantly monitored by a regulator controlled by the microprocessor MCBA If a fault occurs the MCBA tu...

Page 7: ...79 115 Flue gas duct max pressure drop Pa 150 150 150 150 Concentric flue gas channel max length Ø 100 150 mm m 20 20 20 20 Gas Gas flow rate G20 20 mbar m3 h 5 28 7 6 Gas flow rate G25 25 mbar m3 h 6 14 8 8 Gas flow rate G31 30 37 50 mbar m3 h 2 0 2 9 CO2 max output power with front panel closed CO2 9 4 9 4 10 8 10 8 CO2 max power with front panel open CO2 9 2 9 2 10 5 10 5 CO2 min power with fro...

Page 8: ... 30 C C 65 65 63 63 Mass flow rate of combustion products kg h 114 171 114 171 120 190 120 190 Flue gas duct max pressure drop Pa 150 150 150 150 Concentric flue gas channel max length Ø 100 150 mm m NA NA NA NA Gas Max rated gas flow rate m3 h 8 5 12 7 9 8 14 4 2 5 3 9 3 3 5 1 Min rated gas flow rate m3 h 2 32 2 74 0 96 1 24 CO2 max output power with front panel closed CO2 9 9 10 3 10 3 CO2 max p...

Page 9: ... G25 25 mbar 25 mbar 25 mbar 25 mbar G30 30 50 mbar 30 50 mbar 30 50 mbar G31 30 50 mbar 37 50 mbar 30 50 mbar 37 50 mbar 30 50 mbar 37 50 mbar 37 mbar BE Belgium CH Switzerland CZ Czech republic DE Germany DK Denmark EE Estonia ES Spain FR France GB Great Britain GR Greece IE Ireland IT Italy LU Luxembourg LT Lithuania NL Netherlands PL Poland PT Portugal SI Slovenia SK Slovakia SE Sweden I2E S B...

Page 10: ...al characteristics m3 h 0 20 40 60 80 100 120 140 160 180 1 2 3 4 5 6 Prestige Solo 75 Prestige Solo 50 mbar m3 h 0 20 40 60 80 100 120 140 160 180 1 2 3 4 5 6 7 8 Prestige Solo 120 mbar Pressure drop diagram for Prestige Solo 50 75 Pressure drop diagram for Prestige Solo 120 ...

Page 11: ...Prestige Solo 50 75 1 230V power cord 2 On Off switch 3 Heating circulator optional 4 Domestic hot water circulator optional 5 Burner feed 6 Gas valve rectifier 7 230 Volt 24 Volt transformer 8 MCBA 9 Display 10 Gas pressure switch 11 Low water level pressure switch B Blue Bk Black Br Brown G Grey Or Orange R Red V Violet W White Y Gr Yellow Green 12 Burner PWM plug 13 NTC1 flow sensor 14 NTC2 ret...

Page 12: ...120 1 230V power cord 2 On Off switch 3 Heating circulator optional 4 Domestic hot water circulator optional 5 Burner feed 6 Gas valve 1 7 Gas valve 2 8 230 Volt 24 Volt transformer 9 MCBA 10 Display 11 Safety thermostat 12 Gas pressure switch B Blue Bk Black Br Brown G Grey Or Orange R Red V Violet W White Y Gr Yellow Green 13 Low water pressure switch 14 Burner PWM plug 15 NTC1 flow sensor 16 NT...

Page 13: ...gas valve on the meter ventilate the rooms and contact your installer 101 6 mm 101 6 mm 48 4 mm 53 2 mm 53 2 mm 48 4 mm Wall mounting Accessibility The appliance must be placed in such a way that it is always easily accessible Furthermore the unit must have the following minimum clearance around it Installation instructions A Heating outlet 1 1 4 M B Heating return 1 1 4 M C Gas connection 3 4 M A...

Page 14: ...r crosses the space between the tubing and the pre existing chimney Make sure to clean the pre existing chimney thoroughly prior to installation especially if there is soot or tar residue Make sure that there is a clearance area for the combustion air at least equivalent to the area that would have been provided by separate concentric ducts or air intake ducts prestige 1000 mm 1 0 0 0 m m 2000 mm ...

Page 15: ...ted to similar wind conditions C33s Connection with an individual system of which the exhaust duct for the combustion products is installed in an exhaust pipe that is part of the building The appliance the exhaust duct and the terminal units are certified as an assembly that cannot be dissociated C43 Connection by two ducts to a collective duct system serving more than one appliance this system of...

Page 16: ...nt any risk of the condensates freezing Installation 1 2 2 4 5 6 3 prestige 7 Heating connection example 1 Differential pressure bypass valve 2 Isolating valve in the heating circuit 3 Safety valve calibrated to 3 0 bar with pressure gauge 4 System filling kit 5 Expansion vessel 6 Drain valve 7 Heating pump Gas connection Our Prestige boilers are fitted with a gas connection Ø 3 4 male Prestige So...

Page 17: ...as valve venturi assembly following the same procedure in reverse order Check that the boiler has no gas leaks while operating Conversion is not allowed in every country please refer to the category table Before adjusting the CO2 it is important to set the fan speeds as indicated in the following table see also MCBA parameters for the specialist Orifice Prestige Solo 50 Prestige Solo 75 Prestige S...

Page 18: ...tors the external domestic hot water tank 1x Installation Block diagram The heating system radiators or floor is controlled by an On Off room thermostat The domestic hot water tank is controlled by an intermediate NTC sensor The domestic hot water priority is always active In this configuration the boiler constantly adapts its operation to the outdoor temperature if an outside temperature sensor i...

Page 19: ...e water in the heating circuit adjustable from 30 to 90 C Minimum temperature for the water in the heating circuit adjustable from 15 to 60 C Minimum outside T4 temperature adjustable from 20 to 10 C Maximum outside T4 temperature adjustable from 15 to 25 C The central heating system will only decrease the temperature at night C if a clock is connected between 1 and 2 and P34 is set to 01 Increase...

Page 20: ...to account Installation prestige AF120 Room Unit Equipment required as options Item Code Description 10800034 Room Unit RSC Delivered with outdoor sensor 1x 1x 10800036 Clip in interface RMCIEBV3 Enables communication between the MCBA and the Room Unit RSC 1x 1x 10510100 Outside temperature sensor 12kΩ AF120 1x 1x 10800104 2 circuit manifold DN32 With built in wall mounts 1x 10800107 High temperat...

Page 21: ...Unit 00 Domestic hot water OFF 01 Domestic hot water ON 00 Heating mode OFF 01 Heating mode ON Temperature set point for the water in the heating circuit adjustable from 30 to 90 C Minimum temperature for the water in the heating circuit adjustable from 15 to 60 C Increase of the primary temperature set point to generate hot water 12 if there is a tank with an NTC sensor 13 if there is a tank with...

Page 22: ...guration is ideal for a basic system of floor heating with supplementary heating provided by radiators The floor circuit runs continuously according to a first heating curve while the radiator circuit follows a second heating curve with a booster function if needed RAM prestige MCBA SQK NTC12K AF120 AM3 11 ACV 22 Configuration 3 Installing two heating circuits and optionally a domestic hot water t...

Page 23: ...uit manifold DN32 With built in wall mounts 1x 10800105 3 circuit manifold DN32 With built in wall mounts 1x 10800107 High temperature kit DN32 Includes a circulator two isolation valves the check valve and two thermometers 1x 2x 10800106 Low temperature kit DN32 Includes a circulator two isolation valves the check valve two thermometers a 3 way valve with built in bypass 1x 1x 10800142 Manifold c...

Page 24: ...RLANDS español ITALIANO deutsch 664Y3300 N Y1 Y2 Ph PE N N X1 X2 X3 Block diagram for wiring in compliance with applicable standards Installation 4 5 6 1 2 3 1 2 3 4 5 6 7 8 9 10 11 12 13 L L1 1 2 PE Ph N PE Ph N Ph PE N Ph PE N ...

Page 25: ...ot water High T circuit operates according to outside temperatures The circulator is controlled by the room thermostat Low T circuit operates according to outside temperatures The circulator runs continuously Low T circuit during generation of domestic hot water set P34 to 60 High and low T circuits operate according to outside temperatures Both circulators run continuously Night time reduction on...

Page 26: ...The unit enables up to 3 weekly schedule programs both for heating and for domestic hot water Furthermore when combined with the module ZMC1 the Room Unit enables you to program several operating modes for the domestic hot water priority parallel strict priority restricted priority and priority according to outside temperature In this configuration the boiler continuously adapts its operation to t...

Page 27: ...ircuits 1x 1x 10510100 Outside temperature sensor 12kΩ AF120 1x 1x 10800104 2 circuit manifold DN32 With built in wall mounts 1x 10800105 3 circuit manifold DN32 With built in wall mounts 1x 10800107 High temperature kit DN32 Includes a circulator two isolation valves the check valve and two thermometers 1x 2x 10800106 Low temperature kit DN32 Includes a circulator two isolation valves the check v...

Page 28: ...spañol ITALIANO deutsch 664Y3300 Block diagram for wiring in compliance with applicable standards Installation 4 5 6 1 2 3 1 2 3 4 5 6 7 8 9 10 11 12 13 2 1 A B PE Ph N Ph PE N Y2 N Y1 Ph PE N N AV MPK ZU AUF 0 24V A B VF VE ZMC1 Ph Ph N ...

Page 29: ...01 Heating mode ON Temperature set point for the water in the heating circuit adjustable from 30 to 90 C Minimum temperature for the water in the heating circuit adjustable from 15 to 60 C Increase of the primary temperature set point to generate hot water 12 if there is a tank with an NTC sensor 13 if there is a tank with a thermostat Installation Hydraulic Parameter 6 23 Hot water Parameter 7 1 ...

Page 30: ...the settings Check if the parameters are set to meet the user s requirements Checking the boiler s settings only an ACV trained installer or the ACV maintenance department can perform this task Set the appliance to maximum power mode by pressing simultaneously the Mode and keys Check the dynamic gas pressure at the gas valve see diagram below ref 1 This must be at least 18 mbar Let the appliance h...

Page 31: ...y different from the original setting this deviation may indicate an obstruction in the air intake ducts or flue gas exhaust pipes or that the exchanger is clogged Disassembling the burner Prestige Solo 50 75 Close the gas supply valve Isolate the electric power supply Open the front panel of the boiler Disconnect the fan plugs PWM 230V the ignition cable the gas valve control and the ignition ele...

Page 32: ...ation and the seals and replace them if needed then put the burner back following the above procedure in reverse order boiler maintenance Prestige Solo 120 ACV recommends that you have your boiler inspected and cleaned if needed at least once a year Isolate the appliance before undertaking any work on it even if you are simply taking measurements and making adjustments Check that the condensate tr...

Page 33: ...able and the electrode during assembly Check the seals and replace them if needed then reassemble the electrode by following the above procedure in reverse order 3 5 Commissioning and maintenance T C R Ω T C R Ω T C R Ω 20 98200 25 12000 70 2340 15 75900 30 9800 75 1940 10 58800 35 8050 80 1710 5 45900 40 6650 85 1470 0 36100 45 5520 90 1260 5 28600 50 4610 95 1100 10 22800 55 3860 100 950 15 1830...

Page 34: ...r code Status Boiler function Internal inspection Three way valve Boiler s burner in temperature maintenance function Test function max central heating power Test function min central heating power Test function boiler with fixed number of revolutions Status Boiler function Standby no heat demand Fan pre purge post purge Ignition Operation of the boiler s burner for heating Operation of the boiler...

Page 35: ...m that the value has been stored To activate the modified parameters press Mode again this will switch you to Info mode However if you do not press any key the system returns to Standby mode after 20 minutes and activates the changes Factory setting Key Display Description of the parameters Prestige 50 Prestige 75 Prestige 120 STEP Setting the hot water temperature STEP Hot water generation 00 Off...

Page 36: ...STEP Outside temperature T4 in C STEP Flue gas temperature T5 in C STEP Flow temperature calculated in C STEP Rate of increase of flow temperature in C s STEP Rate of increase of return temperature in C s STEP Rate of increase of hot water temperature in C s STEP Flow temperature of 2nd central heating circuit Press the STEP key until you see the desired information The dot located behind the firs...

Page 37: ...ture STEP Correction for outside temperature STEP T lock locks the heat demand if the heating set point T is lower than the parameter value 0 Disabled STEP Booster 00 Off minute STEP Night time central heating reduction C STEP Max fan speed in central heating mode rpm x 100 Natural gas Propane STEP Max fan speed in central heating mode rpm Natural gas Propane STEP Max fan speed in domestic hot wat...

Page 38: ...10 sec min STEP Domestic hot water pump time delay sec x 10 2 STEP Burner interlock hysteresis central heating STEP Burner trigger hysteresis central heating STEP Burner interlock hysteresis domestic hot water STEP Burner trigger hysteresis domestic hot water STEP Burner detection hysteresis domestic hot water mode interlock STEP Burner detection hysteresis domestic hot water mode trigger STEP Cen...

Page 39: ...ed slave 2 enabled master 2nd position the heat demand comes from 0 room thermostat 1 outdoor sensor STEP 1st position domestic hot water circulator 1 or dividing valve 2 2nd position Tank with NTC 3 sensor 2 or tank with thermostat 3 STEP Manual fan speed STEP 1st position pump speed during operation 2nd position pump speed during time delay STEP Holding temperature STEP Maximum flow temperature ...

Page 40: ...rameters STEP Code of last error STEP Status of the boiler at the time of the error STEP Flow temperature T1 at the time of the error STEP Return temperature T2 at the time of the error STEP Hot water temperature T3 at the time of the error STEP Outdoor temperature T4 at the time of the error Key Display Description of the parameters STEP No communication Communication only between the boiler modu...

Page 41: ...e NTC 1 sensor is OK check if there is water flow in the boiler T2 110 C Check the NTC wiring and replace it if necessary T1 gradient too high Check if the pump is running If there is no problem with the pump bleed the system No tachometer signal from the fan Check the PWM connection Check the fan s wiring If the problem persists after two RESET attempts replace the fan otherwise change the MCBA T...

Page 42: ...the NTC 2 sensor Check the wiring of the NTC 2 sensor If the problem persists replace the NTC 2 sensor NTC 3 connection open Check the connection of the NTC 3 sensor Check the wiring of the NTC 3 sensor If the problem persists replace the NTC 3 sensor Internal error If the problem persists after two RESET attempts replace the MCBA Flue gas temperature too high NTC 5 Check the connection of the NTC...

Page 43: ... 547D3021 3 5476G029 5 5476G031 Prestige 50 Prestige 75 2 537D3016 4 5476G030 6 5476G032 PPrestige 50 P Prestige 75 P 3 54763010 4 257F1079 Prestige 120 1 547D3021 3 5476G039 PPrestige 120 P 2 5476G038 PPrestige 120 1 2 3 1 6 5 4 3 2 1 3 2 ...

Page 44: ...2 557A3001 3 55439129 4 43416134 5 43720000 6 537DC000 7 54766036 8 557A1057 9 497B0025 2147C423 21480069 21471440 2147E419 54761008 21471440 557A8003 497B0035 21475442 1 2 6 5 4 7 8 21474442 507F4105 21473440 507F4104 507F4106 3 9 7 ...

Page 45: ...69 537D6292 21471441 2147E420 21471441 557A8003 2147C429 21475443 5 21474443 21473441 507F4140 7 4 497B6002 54761008 497B6003 21474420 2 8 6 1 257F1071 2 557A3001 3 55439129 4 537DC000 5 557A0101 6 54766036 7 557A1057 8 5476G005 3 1 8 ...

Page 46: ...13 Prestige 75 537D4037 257F1071 537DZ023 537DZ027 507A0065 537D4033 557A0098 53402086 557A0066 557A0095 507F4164 51700062 Prestige 50 537D6038 Prestige 75 537D4028 557A0026 557A0054 Burner propane Brûleur propane Brander propaan Quemador propano Bruciatore propano Propangasbrenner ...

Page 47: ...2 537D4046 507F4164 557A0084 Burner propane Brûleur propane Brander propaan Quemador propano Bruciatore propano Propangasbrenner 537D4048 557A0045 537D3045 257F1071 537D4047 537D4053 537D4054 557A0095 557A0090 557A0085 51700071 497B0039 54764025 ...

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