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Dear Customer,

May we thank you for having chosen a MHS Group product.

This manual has been prepared to acquaint you with the boiler you have purchased.

Please take time to read it, because the instructions and suggestions on the installation, use and

maintenance of your boiler will enable you to obtain the best results from our high quality product for

a very long time.

CONFORMITY STATEMENT

Regency Premix boilers are manufactured in accordance with the EN656 standard and carry the CE

mark. They comply with the following Directives:

90/396

Gas Appliances Directive

92/42

Boilers Efficiency Directive

73/23

Low Voltage Directive

89/893

Electro-Magnetic Compatibility

They comply with Gas Safety Regulations.

Regency Premix boilers are classified as type B23 (the combustion air is coming from the room where

the boiler is installed, there is no draught diverter and the burner fan is placed upstream the

combustion chamber), and are designed for use on gas category I2H (natural gas).

The Manufacturer will not assume any responsibility for the non-observance of any relevant statutory

installation requirements, regulations and codes of practice, or any recommendations and instructions

included in this manual.

INSTALLATION REQUIREMENTS

The equipment must be installed by competent personnel who are suitably qualified in the geld of civil

heating systems.

The boilers need to be connected to:

a supply gas system

a supply electric system

an hydronic heating system

a natural draught chimney

The installation of Regency Premix boilers must be in accordance with relevant statutory requirements,

the Gas Safety (Installation and Use) Regulations 1994, Health & Safety at Work Act, Building

Regulations, I.E.E. Regulations, Construction (Design & Management) Regulations 1994, Local

Authority Byelaws, Local Gas Undertaking Regulations, Local & National Water Byelaws, Fire Authority

Regulations and Insurance Company requirements.

The following codes of practice are also applicable:

BS6880 Codes of practice for low temperature hot water heating systems of out-put greater than 45

kW. Parts 1,2 & 3 : 1988.

CP342 Code of practice for centralised hot water supply, part 2 Buildings other than individual

dwellings.

BS6644 1991 specification for gas fired hot water boilers of rated inputs between 60 kW and 2 MW.

IGE/UP/2 Gas installation pipework, boosters and compressors on industrial and commercial
premises.

CIBSE Guide Reference sections B7, B11 and B13.

BS5440 Installation of flues and ventilation for gas appliances of rated input not exceeding 60 kW.

British Gas IM/11 Flues for commercial and industrial gas fired boilers and air heaters.

Содержание 001616006

Страница 1: ...REGENCY PREMIX INSTALLATION ADJUSTMENT AND SERVICING INSTRUCTIONS FOR THE INSTALLER USE AND MAINTENANCE INSTRUCTIONS FOR THE USER L261 ...

Страница 2: ......

Страница 3: ...LATION REQUIREMENTS The equipment must be installed by competent personnel who are suitably qualified in the geld of civil heating systems The boilers need to be connected to 9 a supply gas system 9 a supply electric system 9 an hydronic heating system 9 a natural draught chimney The installation of Regency Premix boilers must be in accordance with relevant statutory requirements the Gas Safety In...

Страница 4: ... 3 CASING ASSEMBLY 14 2 3 4 CONDENSATE DISCHARGE CONNECTION 15 2 3 5 WATER CONNECTION 15 2 3 5 1 WARNINGS ABOUT THE WATER CIRCUIT 16 2 3 6 GAS CONNECTION 16 2 3 7 FLUE CONNECTION 16 2 3 8 ELECTRICAL SUPPLY AND CONNECTIONS 17 2 3 8 1 WARNINGS 17 2 3 8 2 CONNECTIONS TO DO 17 2 3 8 3 OPTIONALS 17 2 3 8 4 WIRING DIAGRAM Regency Premix 70 18 2 3 8 5 WIRING DIAGRAM Regency Premix 100 19 2 4 ADJUSTMENTS ...

Страница 5: ...valve and a venturi placed upstream the fan Boiler Management Unit The boiler is equipped with a Boiler Management Unit with the following functions 9 Burner safety control 9 Boiler temperature control through up to four NTC sensors monitoring flow return outside temperature and if required DHW temperature 9 Other system devices control such as DHW three valve It includes a display unit with push ...

Страница 6: ...GS AND LIST REGENCY PREMIX REGENCY PREMIX REAR VIEW SIDE VIEW BOILER MODEL L mm Øg mm F R Øf Regency Premix 70 6 977 150 2 Regency Premix 100 8 1167 150 2 LEGEND F Water Flow R Water Return Øg Flue outlet Øf Gas connection 6 ...

Страница 7: ...g flow temperature C 85 85 Max working water pressure PMS bar 5 5 Ø Flow Return water connections 2 2 Water pressure drop 10 K T 20 K T mbar mbar 170 60 190 70 Gas connection Mass rate of combustion products max input min input kg s 0 034 0 022 0 050 0 032 Flue temperature MAX INPUT CO2 9 0 80 60 C water temp Flow Return MIN INPUT CO2 8 5 50 40 C water temp Flow Return C 158 88 164 93 NOX Class 5 ...

Страница 8: ...1 5 EXPLODED VIEW OF THE BURNER AND PARTS LIST 1 5 1 BURNER DRAWINGS 13 12 10 11 9 8b 8a 7 6 5 4 3 2 1 Regency Premix 70 13 12 11 10 9 8b 8a 7 6 5 4 4 3 2 1 Regency Premix 100 8 ...

Страница 9: ... 001655555 6 Gas Valve 001655579 001655578 7 Venturi 001655581 001655575 8a Electrode ignition surveillance 001655551 001655551 8b Electrode earth 001655553 001655553 9 HT Connector 001655550 001655550 10 Electrode fixing bushing 001655569 001655569 11 Burner Head Gasket 001655561 001655560 12 Burner rear plate gasket 001655559 001655558 13 Burner assembly gasket 001655557 001655557 ...

Страница 10: ...1 6 EXPLODED VIEW OF THE BOILER BLOCK AND CASING 1 6 1 BOILERS DRAWING 10 ...

Страница 11: ...pply Tube 001651526 001651516 001651510 14 Water Distribution Pipe 001651506 001651508 15 Casing back panel 001645413 001645413 16 Flue outlet plate 001650010 001650010 17 Flue outlet gasket 001666511 001666511 18 Purging manifold 001651500 001651500 18a Automatic purging valve 001362101 001362101 18b Manual purging valve 008591303 008591303 18c Automatic anti drain 008591316 008591316 19 20 Frame...

Страница 12: ... boiler is set in the comfort mode In this case the Economy LED can never be lit 6 LED indicator Economy mode ls lit when the burner control is in Economy mode In this case the Comfort LED can never be lit 7 SERVICE Display It shows the operational status see 1 7 1 when the boiler is in operation In the stand by mode the service display is switched off If a lock out appears a code is shown see 1 7...

Страница 13: ...l DHW 2 Flow and return sensor switched 2 Flow temperature continuously lower than return temperature while running 2 Flow and return not equal in stand by 2 S3 flow temperature while running 3 NTC1 increase too big only active when CH in operation Tmax depends on the size of NTCI so the larger NTCI the smaller Tmax and the sooner it will intervene Response heat demand is blocked until the NTC1 an...

Страница 14: ...he tube provided with the purging valves at the top of the rear section opposite to water distributor 2 3 2 BURNER ASSEMBLY 1 Insert the premix burner in the combustion chamber passing the burner head through the hole on the front metal plate 2 fix it with the 4 bolts M10 provided on the pivots NB The display board has to be assembled after having placed the casing on the boiler body see the last ...

Страница 15: ...h the accessories and fit at the rear bottom of the stainless steel flue hood Make the connection from the condensate discharge outlet with an open connection to the sewer trunk line following the local regulations in force 2 3 5 WATER CONNECTION The connection of the boiler to the water system should comply with all appropriate regulations When the boiler is filled in with water for the first tim...

Страница 16: ...20 3 4 M 1 2 Fx 20 D5 D5 If possible install the right settled pressure safety valve following the system calculation on the tube provided with the purging valves at the top of the rear section If there is a need to treat the water with an anti freeze agent then carefully follow the recommendations of the anti freeze supplier manufacturer especially when mixing water with the antifreeze 2 3 6 GAS ...

Страница 17: ... the mains supply Always ensure that equipment is connected to a right dimensioned earthing system to avoid safety and EMC problems 2 3 8 2 CONNECTIONS TO DO Connections need to be made to the earth connection from the boiler body to the earth screw on burner mounting plate with cable supplied already fixed to the fixing side bracket the supply Live Neutral and Earth on the 7 way connector with th...

Страница 18: ... 1 13 5 4 3 2 1 GN RD BL YL BN OR GN PL RD S3 T1 T2 B4 PL RD BL BL 5 4 3 2 1 BN BK GN BK BN PL GN GN 5 4 3 2 1 RD OR YL GN BN BL PM1A POWER BURNER ENCON ELECTRONICS 7 WAY BL BLUE BK BLACK BN BROWN GN GREEN GR GREY OR ORANGE PL PURPLE RD RED WT WHITE WIRE COLOUR KEY G BRIERLEY 3 5 02 1 5 02 3 5 02 L N N P PE X1 X2 6 X3 X4 X5 X6 T7 T8 T6 B5 4 WAY PLUG BL BL PL GN COMMON FLOW TEMPERATURE RETURN TEMPE...

Страница 19: ...RD BL YL BN OR GN PL RD S3 T1 T2 B4 PL RD BL BL 5 4 3 2 1 BN BK GN BK BN PL GN GN 5 4 3 2 1 RD OR YL GN BN BL PM1AA POWER BURNER ENCON ELECTRONICS 7 WAY BL BLUE BK BLACK BN BROWN GN GREEN GR GREY OR ORANGE PL PURPLE RD RED WT WHITE WIRE COLOUR KEY G BRIERLEY 3 5 02 1 5 02 3 5 02 L N N P PE X1 X2 6 X3 X4 X5 X6 T7 T8 T6 B5 4 WAY BL BL PL GN COMMON FLOW TEMPERATURE RETURN TEMPERATURE CONNECTOR FOR SE...

Страница 20: ...y drive the fan speed back to maximum by pressing the SERVICE button at the same time as the PLUS button and holding them down for 3 seconds Check the CO2 levels These should be the same as for those shown in the following Table Gas Type CO2 G20 Natural Gas 8 9 9 0 NOTE check the flue temperature too If it is very higher than the value shown in the table of section 1 4 check and improve the tightn...

Страница 21: ...E AND OFFSET ADJUSTMENT FROM POINT b for all the operations Regency Premix 70 Regency Premix 100 Throttle adjustment screw Offset adjustment screw WARNING DO NOT attempt to check the flame signal with standard equipment as this is dangerous because the burner has a single probe operation 2 4 2 BOILER SETTINGS The Qualified Service Engineers can enter the electronics to make changes on some paramet...

Страница 22: ...indicator lit using the plus or minus button 2 4 2 2 FLOW TEMPERATURE SETPOINT WITH THE OUTSIDE SENSOR When an outside sensor is also connected the water temperature set point will depend on this Modulation during central heating operation is based on the temperature of the flow sensor The set point used for control depends upon the programmed central heating curve The following figure shows how t...

Страница 23: ...eaner Dismantle the flue outlet plate for cleaning Clean the chimney check for obstructions 10 Verify that the insulating blank placed on the special intermediate section combustion chamber zone is entire and correctly assembled look at it from the front If doubt of damage disassemble the steel plate from the back flue outlet verify the insulating blank and replace it if necessary 11 Disassemble t...

Страница 24: ... regular Check setting of the throttle and offset adjustment screws Replace the gas valve Isolate power and remove the cover of the electronics module and check the fuse Replace the electronics module Isolate power and check that the ignition cable is connected to the electronics module and that the spark cap is pushed well home on the ignition electrode CHECK THE LOCKOUT CODES IN SECTION 1 7 2 Is...

Страница 25: ...N AND RUNNING Open gas cock Press the ON OFF button on the Burner Display Panel After a few seconds the burner should start to pre purge Ignition will commence and the fan will stay at ignition speed for 10 seconds The burner is pre programmed with a step control so it will not reach maximum fan speed for at least 90 seconds after this The burner should then run normally Adjust boiler thermostat d...

Страница 26: ...1674031 R0 19 06 2002 35 NOBEL SQUARE BURNT MILLS INDUSTRIAL ESTATE BASILDON ESSEX SS13 ILT TEL 01268 591010 FAX 01268 728202 ...

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