Related Manuals for MHS Boilers MK8
Summary of Contents for MHS Boilers MK8
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Page 1: User Guide
Installation User Guide MK Jetstream Cast Iron Boiler 320 - 1017 kW Assembly, Operating and Maintenance Instructions 35 Nobel Square Basildon Essex SS13 1LT 01268 591010 / 01268 724064 L MK 01/02/06... - Page 2 INTRODUCTION The MK is a cast iron sectional boiler for pressure jet oil firing or forced draught gas firing which is constructed in three pass horizontal flue gas circulation principle. MK series are CE Marked on PIN CE-0645 BO118 to Gas Appliances Directive (90/396/EEC) Boiler Efficiency Directive (92/42/EEC) Electromagnetic Compatability Directive (89/336/EEC)
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Page 3: Technical Information
TECHNICAL INFORMATION 35.0 55.0 57.0 60.0 66.0 38.0 44.0 49.0 56.0 (1): In series MK 8-12, flue connection diameter could be reduced minimum to 250 mm by using a flue spigot adaptor. Filling/draining tapping size 3/4"... - Page 4 TECHNICAL INFORMATION Jetstream Jetstream is a PATENTED NEW TECHNOLOGY developed particularly to prevent flue Technology gas condensation in the boiler. It is based on increasing the temperature of cold return water to boiler, mixing it with hot circulating water inside boiler. This is accomplished by a jet effect created by a distribution pipe fixed to the return connection of the boiler.
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Page 5: Flue Gas Temperatures
TECHNICAL INFORMATION Gas resistance inside the boiler Efficiencies Values given according to average boiler water temperature of 70 C Flue gas temperatures Values given according to average boiler water temperature 70 C, ambient temperature 20 C... - Page 6 TECHNICAL INFORMATION Oil Supply MK series boilers can only be fired with liquid fuels having following specifications: Kerosene viscosity at 20 C: 1.2 cSt or viscosity at 100 F: 28 Second Light oil (EL) viscosity at 20 C: 4- 6 max cSt or viscosity at 100 F: 35 Second Gasoil (D) viscosity at 20 C: 4- 6 max cSt or viscosity at 100 F: 35 Second Light/medium fuel oil viscosity at 50 C: 150 cSt max or viscosity at 100 F: 625 Second...
- Page 7 TECHNICAL INFORMATION Water side The fully watercooled sections are joined by cast iron conical nipples, and distribution of boiler pipe fitted to the return ensures even the temperature distribution throughout the boiler. The cast iron sections are to BS.1452 Grade 200 with 7 mm wall thickness. Return and flow connections to heating system are provided by stub-pipes at the rear of the boiler, outboard the casing Under no circumstances should the boiler be fired when its circulation volume is less than...
- Page 8 PREPARATIONS BEFORE ASSEMBLY Boiler room The installation must be arranged in accordance with Mandatory Regulations and Codes arrangement of Practice. The following sketch shows the recommended minimum dimensions of clearance around the bolier for servicing and maintenance Boiler room should not be used for any other applications, floor should always be kept dry and clean.
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Page 9: Water Circulation System
PREPARATIONS BEFORE ASSEMBLY The boilers can be installed directly onto a smooth level floor of non-combustible material. A steel baseframe and a 50 mm thick mineral wool mat to insulate the underneath of the boiler are included in the supply. A raised plinth shall be used. It is recommended that the plinth be at 200 mm high and sized to the dimensions of casing of the boiler given as in the following table: Recommended dimensions of plinths (mm) - Page 10 PREPARATIONS BEFORE ASSEMBLY Safety of For heating systems with maximum boiler temperature up to 100 C: water circulation The system can be built either open vented or pressurized. In case of open vented heating system system an open type expansion tank acoording to DIN 4807 Part 2 shall be installed at the heighest level of hydraulic circuit.
- Page 11 PREPARATIONS BEFORE ASSEMBLY Requirements For heating systems with maximum boiler temperature up to 100 C, the necessary water on filling purification shall be in accordance with VDI 2035: water Boiler capacity range Requirements at the filling and auxiliary water 100 < Q in kW <350 No requirement is needed, if content of Calcium Hydrocarbonate (CA(HC03)) is max 2 mol/m³, and if no more than the triple water filling of the plant does not...
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Page 12: Assembly Instructions
ASSEMBLY INSTRUCTIONS MK Jetstream An MK boiler delivered unassembled consists of following parts: Delivery Mode 1. Boiler block: A block of sections, smokehood and front door is delivered on a tread for an easy shipping. The sections are assembled in the boiler room. Refractories for combustion chamber insulation are mounted on the rear section at the factory. - Page 13 ASSEMBLY INSTRUCTIONS Assembly of Numbers in the parenthesis refer to position numbers in the exploded drawing. Boiler Group 1. Place steel profiles (174) which are used as baseframes of the boiler parallel to each each other as shown in Fig. 1. There are four baseframes for MK 8-10, six for MK 11-15, and eight for MK 16-20.
- Page 14 ASSEMBLY INSTRUCTIONS Usage order of compression tools Model First application Second Third application Fourth Fifth application (Nr of sections) application (Nr of sections) application (Nr of sections) (Nr of sections) (Nr of sections) MK 8 MK 9 MK 10 MK 11 MK 12 MK 13 MK 14...
- Page 15 ASSEMBLY INSTRUCTIONS Hydrostatic test shall be carried out at a pressure gauge of 1.43 x P; where, P is the maximum operating pressure of boiler. Duration of test should be at least 30 minutes. The hydrostatic test must always be carried out before boiler being jacketed or heat insulated, and connected to heating circuit.
- Page 16 ASSEMBLY INSTRUCTIONS Jasket assembly 1. Fit cast iron hinges (229) used for carrying front door onto front section using MK 8-11 two pieces of M12x50 allen screws (32) for each hinge. When fitting hinges to front door, place front support sheets (247) between front door and hinges. 2.
- Page 17 ASSEMBLY INSTRUCTIONS 8. Fit rear insulation LH and RH pieces (242) onto smokehood as shown in following photo. 9. Fit rear casings (240 and 241) onto smokehood by using four special M8x20 setscrews (248). Rear casing consists of two simetric parts (LH is pos. 241 and RH is pos. 240) like rear insulations.
- Page 18 ASSEMBLY INSTRUCTIONS 13. Screw in the special setscrew(230b) into hole of upper hinge by using a screwdriver in order to make front door aligned parallel to floor while closing. Lift the front door by using a wrench from the bottom of the special setscrew during closing.
- Page 19 ASSEMBLY INSTRUCTIONS Jasket assembly 1. Apply the same procedure as described in Clauses 1, 2, and 4 of previous chpater, for MK 12-20 series MK 12 to MK 20. 2. Fit auxillary baseframes for side casing assembly for series MK 12 to 20. First, fix front/rear baseframes (260) securing it by an M16 nut (11,10) on correspondant end of lower staybolts (8 or 9).
- Page 20 ASSEMBLY INSTRUCTIONS 6. Fit eight pieces of special assembly pin (264) into clinched nuts on each vertical baseframe (262). Fix vertical baseframe onto side casing lower parts front piece (256 and 257), first passing lower two special assembly pins (264) through holes on items 256 and 257, and then pushing item 262 downwards (see photo on the left side).
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Page 21: Electrical Installation
ASSEMBLY INSTRUCTIONS Electrical 1. Before assembly of control panel on top casing front piece (238), pass the capillary Installation tubes of the panel through the large hole on the top casing. Fix control panel (160) onto the top casing using 4 self tapping screws S 4.8x9.5 2. - Page 22 ASSEMBLY INSTRUCTIONS...
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Page 23: Periodic Inspections
MAINTENANCE AND CLEANING Before servicing boiler for any reason, first switch off all electrical supply and close oil or gas valves. Periodic 1. Cleaning of heat transfer surfaces of the boiler (at least once a month with light-oil, and inspections and once a week with light/medium fuel-oil firing as necessary). - Page 24 END-USER INSTRUCTIONS To shut down Switch off the electrical supply and decrease the control thermostats on boiler control the boiler panel to the minimum set point. If switching off for an extended period e.g. Holidays, turn off the gas or oil supplies at the service and isolating gas or oil cock on the burner. Care of the 1.
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Page 25: Health And Safety Information
HEALTH AND SAFETY INFORMATION Control of For the type of material and where used in MK JETSTREAM boiler refer to the following substances chart: hazardous to health 1. PAINTS: General purpose black undercoat NOT APPLICABLE High temperature black coating Sections Burner plate Powder coating All jackets... - Page 26 HEALTH AND SAFETY INFORMATION Building of When building the boiler, the section should always be built on a level base capable of Boilers supporting the full weight of the boiler and the sections should always be supported on blocks of wood or props when positioning before finel bolting up. An unsupported section should never be left unattended.
- Page 27 EXPLODED DRAWINGS MK JETSTREAM EXPLODED DRAWING (BOILER GROUP)
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Page 28: Exploded Drawings
EXPLODED DRAWINGS MK JETSTREAM EXPLODED DRAWING (INSULATIONS AND OUTER CASINGS for MK 8-11) - Page 29 EXPLODED DRAWINGS MK JETSTREAM EXPLODED DRAWING (INSULATIONS AND OUTER CASINGS for MK 12-20)
- Page 30 BOILER GROUP REGISTRATION MK Jetstream Boiler Group Registration : MK ..Model Capacity Serial Nr. Date of Manufacture Boiler Group Nr.1 Boiler Group Nr.2 Date of Assembly Date of Commission Assembled by: Commissioned by: Authorised dealer: Manufactured by: 35 Nobel Square Basildon Essex SS13 1LT 01268 591010...
- Page 31 BOILER ASSEMBLY Form Nr. : 2.009 F 14 R2 CERTIFICATE MODEL BOILER GROUP NR.1 RATED OUTPUT BOILER GROUP NR.2 SERIAL NR. DATE OF MANUFACTURE FUEL TYPE CONTACT PERSON : ADDRESS TELEPHONE COMPANY NAME ADDRESS TELEPHONE COMPANY NAME ADDRESS TELEPHONE Assembled MK ..Boiler group tested at Ps = 1.
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