MHS Boilers 318 Operating & Maintenance Manual

Operating & Maintenance Manual For Models 318 - 1018 MHS Boilers Ltd 3 Juniper West Fenton Way Basildon Essex SS15 6SJ 01268 546700 Telephone 01268 888270 Fax WWW.MHSBOILERS.COM L263 ...

230307 2 Contents Ultramax Technical data Ultramax Dimensions 1 Introduction 1.1 General 1.2 Supplier 1.3 This document 1.4 Service 1.5 General restrictions 2 Description 2.1 General 2.2 Main components 2.2.1 Description of principal components 2.3 Boiler control 2.4 Safety aspects 3 Safety 4 Delivery and transport 4.1 Delivery 4 .2 Packaging 4.3 Transport 5 Installation 5.1 Regulations 5.2 Boiler room 5.2.1 General 5.2.2 Set up 5.2.3 Ve ...

230307 3 5.4 Hydraulic system 5.4.1 General 5.4.2 Water flow 5.4.2.1 Flow rate and resistance 5.4.2.2 Pump characteristics 5.4.2.3 Isolating valves 5.4.2.4 Valves 5.4.2.5 Water flow protection 5.4.3 Water pressure 5.4.3.1 Operating pressure 5.4.3.2 Boiler expansion tank 5.4.3.3 System expansion tank 5.4.3.4 Water pressure protection 5.4.4 Water temperature 5.4.5 Water quality 5.4.6 Examples of hydraulic systems 6 Operating instructions 6 ...

230307 4 Ultramax Technical data Type 318 378 443 508 559 624 730 826 923 1018 Nominal heat output Nominal heat input (nett.) Minimum heat output kW kW kW 315 333 83 374 396 100 438 464 112 502 532 133 553 585 146 613 653 187 717 764 218 811 865 247 906 966 276 1000 1066 305 Pilot Burner kW 30 30 30 30 30 Gas consumption Nat Gas H (10,9kWh/m3) Propane (12,8 kWh/kg) m3/h kg/h 30.5 26.0 36.3 30.9 42.6 36.2 48.8 41.5 53.7 45.7 59.9 51.0 70. ...

230307 6 Ultramax 318 – 559 Dimensions Type 318 376 443 508 559 B* mm 830 930 1130 1130 1230 B1 mm 710 810 960 1010 1110 B2 mm 120 120 170 120 120 B3 mm 646 746 946 946 1046 D mm 250 250 300 300 300 G1 R 11⁄2" - - - - G2 - Rp 11⁄2" Rp 2" Rp 2" Rp 2" H1 mm 1115 1205 1205 1205 1120 L mm 1918 1908 1908 1908 1958 L1 mm 555 545 545 545 595 L2 mm 1362 1362 1362 1362 1362 L3 mm 231 231 231 231 231 L4 mm 108 108 108 108 108 W DN65 PN6 DN65 ...

230307 8 Ultramax 624 – 1018 Dimensions Type 624 730 826 923 1018 B mm 1330 1130 1130 1330 1330 B1 mm 1210 1003 1053 1203 1253 B2 mm 665 565 565 665 665 B3 mm 120 127 77 127 77 B4 mm 1146 946 946 1146 1146 B5 mm 65 115 65 115 65 D mm 300 350 350 400 400 G Rp2" Rp2" Rp2" DN65 PN6 DN65 PN6 H mm 1355 1355 1355 1355 1355 H1 mm 1125 1400 1400 1155 1155 L mm 2265 2653 2653 2658 2658 L1 mm 595 610 610 615 615 L2 mm 700 1166 1166 1166 1166 L3 ...

230307 9 1 Introduction 1.1 General Through their unique construction, the Ultramax range of central heating units are renowned for their: - high thermal efficiency - environmental friendliness - light weight and small dimensions - durability - low noise production - large regulating range - available with many different options. Active and market required research enables MHS Boilers Ltd to offer solutions for the most provocative heati ...

230307 10 1.5 General restrictions The application, installation and maintenance of MHS products must always be carried out in accordance with the requirements (legal or otherwise), specifications and standards applicable to such installations. All data, information and suggestions provided by MHS Boilers Ltd. in relation to its products are based on careful investigation. Nevertheless, neither MHS Boilers Ltd. nor any other organisation ...

230307 11 The Ultramax units have a small water capacity so that it can rapidly adjust to changing conditions. It can be installed without any restrictions to the return water temperature. The necessary water flow rate is ensured by the standard pump delivered with the appliance. Application possibilities Because of its construction, the Ultramax unit is suitable for use in heating systems: - With a constant supply temperature - With a w ...

230307 12 2.2 Ultramax 318-559 Main components 1 Return connection 19 Flue gas collection chamber 2 Flue gas discharge attenuator 20 Combustion chamber 3 Water flow switch 21 Electrical cable duct 4 Safety valve 22 Condensate discharge 5 Inlet connection 23 Inspection opening 6 Filling / drainage valve 24 Gas valve unit 7 Cover 25 Fan 8 Distribution plate 26 Connection box 9 Burner 27 Control panel 10 First heat exchanger 28 Casing 11 Ga ...

230307 13 2.2 Ultramax 623-1018 Main components 1 Return connection 18 Condensate collection tank 2 Flue gas discharge attenuator 19 Flue gas collection chamber 20 Combustion chamber 3 Water flow switch 21 Electrical cable duct 4 Safety valve 22 Condensate discharge 5 Flow connection 23 Gas valve unit 6 Filling/drainage valve 24 Fan 7 Cover 25 Connection box 8 Distribution plate 26 Control panel 9 Burner 27 Casing 10 First heat exchange ...

230307 14 2.2.1 Description of principal components The boiler is constructed from the following principal components: Fan This consists of a fan casing, a fan impeller and an electric motor. The fan sucks in combustion air and increases the air pressure. Air inlet damper A specially developed air inlet damper ensures a low noise level. As an option, this can be provided with an air filter or with an air inlet opening so that the applian ...

230307 15 provided with a filling/drain valve. The flow connection is also provided with a safety valve, a flow switch and a temperature sensor. Boiler pump The boiler pump is mounted on the return connection to the unit and is directly connected electrically to the appropriate terminals in the connection box. The capacity and the working head of the pump is sufficient to overcome both the resistance of the boiler and some system resista ...

230307 16 2.4 Safety aspects The boiler contains the following safety components: - Flame protection with 1x re-start (ionisation) - Water flow protection - Maximum water temperature protection - Gas valve test - Gas valve leak test (option) - Minimum air pressure protection - Boiler pump motor over-heating protection (Clixon). If one of these components operates, this results in a lockout fault. Lockout faults can only be cancelled by r ...

230307 17 Safety provisions The installation may never be switched on if any of the panels have been removed or if any of the safety devices have been disabled. Instruction and warning stickers None of the instruction and warning stickers attached to the installation may be removed or covered and during the whole of the lifetime of the installation they must remain legible. Replace any damaged or unreadable instruction and warning sticke ...

230307 18 Moving the appliance A pallet truck or fork lift truck with a minimum fork length of 1 m can be used at the side of the unit. Rollers After the wooden blocks have been removed, it is possible to move the appliance by rolling it over tubes. Lifting The figure below shows how a unit can be safely lifted. To avoid damage to the panels, these should first be removed. The wooden bars between the straps ensure that the unit will not ...

230307 19 Caution: - Ensure that the lifting straps are of the correct quality! - Never move the units over the heads of persons! Dismantling and reassembly When the unit cannot be placed in position because of its dimensions or weight, the boiler may be partially dismantled. When it is necessary to perform extensive dismantling, we advise you to make early contact with your supplier. The unit can be delivered in parts, each of which has ...

230307 20 Burner Type Length mm Breadth mm Height mm Weight kg 318 1010 760 400 105 376 1010 860 410 115 443 1010 960 410 120 508 1010 1050 420 130 559 1010 1150 420 135 624 1010 1310 500 140 730 1420 1010 500 210 826 1420 1110 500 215 923 1420 1210 500 220 1018 1420 1310 500 225 Heat Exchanger One Type Length mm Breadth mm Height mm Weight kg 318 1030 760 150 90 376 1030 860 150 95 443 1030 960 150 110 508 1030 1050 150 115 559 1030 115 ...