© MHG Heating Ltd Installation and Operating Manual for the ProCon MCS 320 -2150kW Floor Standing Gas Condensing Boilers 1 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Section Page Appliance Type 3 ProCon MCSS 4 Installation Regulations and Requirements 5 Appliance Warranties Supplied Components 6 Dimensions 7 Installation Clearances and Mounting Information 10 Delivery and Mobility 11 Case Removal 11 Technical Data 12 Load Loss on Water Input Side Curve (DT=20) 15 Pressure Relief Valve 17 Electrical Connections 18 Internal Wiring Diagram 19 Wiring Diagram Legend 24 Hydraulic and Wiring Guide Single Unit Option 1 (Heating On
© MHG Heating Ltd Appliance Type There are currently Five base boiler models in the range which are combined in cascades to provide a further seventeen boilers within the ProCon MCS range.
© MHG Heating Ltd ProCon MCS Configuration. (210-535) 1 Stainless Steel Double Heat Exchanger 2 Manometer 3 Pressure Switch Maximum 4 Pump Differential Pressure Switch 5 Return Pipework 6 6bar Pressure Relief Valve. 7 Pressure Switch Minimum 8 High Head Pump 9 Thermometer 10 Flow Pipework 11 Limit Thermostat 12 Gas Pipework 13 Condensate Discharge Pipework 14 Low NOx Premix Burner 15 Weather Proof Casing. ProCon MCS Hidro Configuration.
© MHG Heating Ltd Installation Regulations and Requirements The installation of ProCon MCS boilers must be in accordance with the relevant requirements of Gas Safety (Installation & Use) Regulations 1994, Health & Safety at Work Act, Building Regulations, IEE Regulations, Construction (Design & Management) Regulations 1994, Local Authority Bye-Laws, National, Fire Regulations and Insurance Company requirements.
© MHG Heating Ltd Appliance Warranties All MHG appliances enjoy a full 24 month warranty as detailed in our terms and conditions. The guarantee period shall begin on the day of commissioning, or within 3 months after delivery has been made. The customer shall only be able to claim against MHG under guarantee if the commissioning of the object of delivery has been carried out by MHG staff or the authorized supplier.
© MHG Heating Ltd Dimensions ProCon MCS 320 (210 & 260 for use in Hidro Cascade units only) Manifold Connection Dimensions 1 System Delivery G 2”1/2 Male 2 System Return MCS 210 G 2”1/2 Male 3 System Return MCS 260 G 2”1/2 Male 4 System Return MCS 320 G 2”1/2 Male 5 Gas Inlet 210/260 G 1”1/2 Male 6 Gas Inlet320 G 1”1/2 Male 7 3 Way Water Outlet Valve G 1”1/2 Male 8 Condensate Discharge Ø25 9 Relief Valve Discharge G1”1/2 Male 10 Fume Discharge Ø=150 Female ProCon MCS 400 and 5
© MHG Heating Ltd ProCon MCS Hidro Units ProCon MCS 320 Hidro (210 & 260 for use in Hidro Cascade units only) ProCon MCS 400 and 535 Hidro Item Description MI Flow Header Connection RI Return Header Connection SC Condensate Water Connection SF Flue Gas Spigot 8 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd ProCon MCS Hidro Layouts A = 400kW and 535kW units B = 210kW, 260kW and 320kW Units 9 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Installation and Service Clearances ProCon MC 210, 260, 320, 400 & 535 ProCon MCS Hidro All models If these clearances cannot be achieved please contact MHG’s technical department for guidance. 10 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Delivery and Mobility All ProCon MCS’s are supplied fully tested and therefore may contain residual test water. The test water utilised contains additives that will help prevent the pump from sticking and other metals from oxidising. To maintain the structural integrity of the appliance the internal components should not be used during the lifting and positioning of the unit. All packaging materials should be disposed of in an environmentally way.
© MHG Heating Ltd Technical Data ProCon MCS 210 (Used in Hidro Cascade) 260 (Used in Hidro Cascade) Nominal Heating Capacity kW 20-200 25-250 Nominal Thermal Power (80/60°C) kW 19.52-195.2 24.45- 244.5 26.63-266.3 Nominal Thermal Power (50/30°C) kW 21.3-213.0 Thermal Efficiency at Max Output (80/60°C) % 97.6 97.8 Thermal Efficiency at 30% Output (50/30°C) % 105.3 105.3 Thermal Efficiency at Max Output (50/30°C) % 106.5 106.52 NOx Class 5 5 Gas Consumption G20 m3/h 2.12-21.
© MHG Heating Ltd 670 Hidro 740 Hidro 800 Hidro Nominal Heating Capacity ProCon MCS kW 25-630 20-700 25-750 30-800 Nominal Thermal Power (80/60°C) kW 24.45-617.5 19.52-686.2 24.45-735.5 29.39-784.9 Nominal Thermal Power (50/30°C) kW 26.63-671 21.3-745.5 26.63-798.8 31.95-852 Thermal Efficiency at Max Output (80/60°C) % 98.02 98.03 98.06 98.11 Thermal Efficiency at 30% Output (50/30°C) % 105.3 105.3 105.3 105.3 Thermal Efficiency at Max Output (50/30°C) % 106.5 106.5 106.
© MHG Heating Ltd 1380 Hidro 1450 Hidro 1600 Hidro Nominal Heating Capacity ProCon MCS kW 30-1300 38-1380 50-1500 20-1700 Nominal Thermal Power (80/60°C) kW 29.39-1275.9 37.3-1355 49.1-1473 1952.1668.2 Nominal Thermal Power (50/30°C) kW 31.95-1384.5 40.47-1469.7 53.25-1597.5 21.3-1810.5 Thermal Efficiency at Max Output (80/60°C) % 98.15 98.19 98.20 98.13 Thermal Efficiency at 30% Output (50/30°C) % 105.3 105.3 105.3 105.3 Thermal Efficiency at Max Output (50/30°C) % 106.
© MHG Heating Ltd Load Loss on Water Input Side Curve (DT=20C) ProCon MCS210 (Hidro Use Only) ProCon MCS260 (Hidro Use Only) ProCon MCS320 15 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd ProCon MCS400 ProCon MCS535 16 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Pressure (Safety) Relief Valve In accordance with the prevailing British Standard 5440/6644, the installer shall install as suitably sized Pressure (Safety) Relief Valve.
© MHG Heating Ltd Electrical Connections Basic electrical connection for the ProCon MCS Legend Item Description Theta Cascade Manager Providing Access to Each Modules Controller Data Appliance and Module Power Isolators (Green) Lockout Indicator (Red) Providing central control of power to each appliance (pair of burners) K3 Relay Safety interlock relay K11Relay Cascade commination interlock relay Module Fuses 10 Amp Main Power Supply and transfer terminal rails Sensor, E-Bus Cascade, RS485 Cascade & Modu
© MHG Heating Ltd Module GFA Controller Wiring Diagram 19 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Theta Cascade Wiring Diagram 20 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd 21 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Theta Cascade Module Wiring Diagram 22 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd 23 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Wiring Diagram Legend # Description Location # Description Location A0 Theta Cascade Controller Control S1 Module 1 Main Power Switch Control A1 Combustion Fan Control Voltage Module S2 Module 2 Main Power Switch Control A2 Not Used NA S3 Module 3 Main Power Switch Control A3 Flow and Return Sensors Module S4 Module 4 Main Power Switch Control A4 Control & Limit Thermostats Module SE Outside Air Sensor (AF) Control A5 Module to Module Internal Communica
© MHG Heating Ltd Hydraulic Design Single Unit (Option 1) Heating Only (Direct on Boiler Weather Compensation.) 25 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Hydraulic Design Single Units (Option 2) Heating Only (Direct on Boiler Weather Compensation.) 26 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Hydraulic Design Single Unit (Option 3) Heating & HWS 27 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Hydraulic Design Single Unit (Option 4) Heating Multi Zone & HWS 28 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Hydraulic Design Hidro Units (Option 1) Heating Only (Direct on Boiler Weather Compensation.) 29 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Hydraulic Design Hidro Units (Option 2) Heating & HWS 30 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Hydraulic Design Hidro Units (Option 3) Heating Multi Zone & HWS 31 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Theta Cascade Manager The Theta Cascade Manager can be used to control up to Four ProCon MCS Single or Hidro units. A Master Theta Cascade Manager can control up to four slave Theta controllers enabling extended control of up to Twenty ProCon MCS units. The unit is supplied in a dedicated housing and associated sensors. The Theta Cascade Controller can proved direct control of: Up to Four ProCon MCS. One Direct Heating Zone. (With Optional Room Unit.
© MHG Heating Ltd Theta Electrical Connections Legend # Terminals Plug Description HWS Primary Pump A1 ~ CB 5/N X 24 Theta Controller CBT1 / CBT2 9 / 15 X 23.1.2 Mixing Zone Pumps CI 3/N X 23 System Heating Pump CMI 37 / 38 / N ProCon MCS GFA Controller CSOL 11 / N SE 26 / 23 X 31 T3 27 / 23 X 15.1 Common Flow Sensor T4 28 / 23 X 15.1 HWS Sensor / Volt Free Enable T5 29 / 23 X 15.2 Mixing Circuit 1 Sensor T6 33 / 23 X 15.
© MHG Heating Ltd Fluing Options Please note that excessive resistance within the flue will lead to a reduction in the output of the appliance and induce operational faults.
© MHG Heating Ltd Single Unit Flue Options Internal Boiler External Boiler 35 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Air Supply, Ventilation and Balance Flue Terminal Positioning Quick Reference Guide for; BS 5440-1:2008, BS 5440-2:2009, BS 6644:2011 & IGE/UP/10 (ed3) BS5440-2:2009.
© MHG Heating Ltd Balanced Flued Appliances Installed within an Enclosure (Natural ventilation requirements to a room or internal space) System Type & Heating &/or HWS Operation Heating &/or HWS Operation Heating &/or HWS Operation Operational Time < 50% time operation during > 50% < 75% time operation > 75% time operation during summer months during summer months summer months Grille Location High Level (Free Area/kW) Low Level (Free Area/kW) 10 cm2 10 cm2 10 cm2 10 cm2 10 cm2 10 cm2 Balanced Flued Ap
© MHG Heating Ltd IGE/UP/10 Part 1 Edition 3 Installation of gas appliances in industrial and commercial premises Guidance for Boiler installations with Inputs in Excess of 1.8 MW net.
© MHG Heating Ltd Filling The System The Initial filling of a sealed heating system, and subsequent refilling, must be by a method that has been approved by the Water Regulation Advisory Scheme (WRAS) for that type of heating system. i.e.
© MHG Heating Ltd Expansion Vessel In accordance with BS 6644: 2011, WRAS Regulations, and Local Authority Water Regulations, as applicable, the installer shall install a suitably sized, and approved, Expansion Vessel to ensure that the water capacity of the system has ample expansion capacity. In complete compliance with BS6644:2011 a tapping is provided at the base of the boiler for the connection if a dedicated expansion vessel.
© MHG Heating Ltd Following the cleansing and flushing the system MUST be dosed with a good quality water treatment to prevent corrosion and the formation of scale. FAILURE TO OBSERVE THESE REQUIREMENTS WILL RENDER THE WARRANTEE ON THE APPLIANCE VOID. Repeated draining planned or via leaks and refilling of the system, without replenishment of water treatment, must be avoided, as this is very damaging to the boiler and system components.
© MHG Heating Ltd Appliance Controls All appliance operational mode adjustments and settings are undertaken via the Theta Cascade Manager. The individual modules are not equipped with display panels. The controller can provide the following levels of information and adjustment.
© MHG Heating Ltd Appliance Fault Codes The display will read as _:__. The first digit identifies the boiler module at fault. The figures after the : are the fault codes detailed below. THETA Code Reset Description Effect The burner turns off and the circulating pump operates at maximum 3 Manual Intervention of the water safety speed.
© MHG Heating Ltd Converting The Appliance To Burn LPG (G31) Unless specified at the time of ordering the appliance/s will be supplied ready to operate on a Natural Gas (G20) fuel supply. The appliances data badge will indicate the type of fuel gas the modules have been set to operate with. If the appliance is required to operate on LPG the following controller adjustments must be undertaken.
© MHG Heating Ltd Commissioning The Appliance Pre-Commissioning Checks Prior to undertaking the commissioning of the unit please ensure that the system water has been cleansed and treated with a suitable inhibitor as detailed in Filling the System and System Water Quality.
© MHG Heating Ltd Combustion System Commissioning To ensure correct operation of the combustion system the gas valve must be set at Maximum and Minimum outputs. The commissioning mode can be activated regardless of the operating status of the heating and how water control system. If zone or mixing valves are installed within the system ensure that these are open to allow for complete circulation of the generated heat.
© MHG Heating Ltd MCS 210 & 260 Valve Adjustment Legend 1. Gas Valve Assembly 2. High Fire Adjuster (Gate Type) 3. Low Fire Adjuster (Governor Type) (Under dust cap) (Make small adjustments only) MCS 320, 400 & 535 Valve Adjustment Legend 2. High Fire Adjuster (Gate Type) 3. Low Fire Adjuster (Governor Type) (Under dust cap) (Make small adjustments only) A flue gas analyser must be used to ensure that the correct combustion setting is achieved.
© MHG Heating Ltd Fan Speeds and Modulation rates Module Ignition Rate Output of 1st Module During Ignition Fan Speed @ Max Output Fan Speed @ Min Output 5600 1700 55% 70% 5600 1700 55% 70% 6600 1800 55% 70% 6300 1800 55% 70% 5400 1500 55% 70% 5200 1500 55% 70% 5500 1500 55% 70% 5100 1500 55% 70% 5850 1667 55% 70% 5535 1535 55% 70% of 2nd Routine Inspection and Servicing As with all Gas Appliances, we would highly recommended that a competent heating engineer ser
© MHG Heating Ltd Routine Cleaning & Maintenance As part of the Routine Service Inspection, certain areas of the boiler need to the checked and cleaned as necessary. a) Turn the boiler OFF at the ON/OFF switch and electrically isolate the boiler by removing the plug or fuse from b) Turn off the gas at the boiler isolation tap, fitted by the installer, adjacent to the appliance. c) Remove the electrical connections, Gas valve balancing pipe and air inlet duct from the units fan assemble.
© MHG Heating Ltd l) Clean with abrasive material and inspect the ignition electrode. Replace if necessary. Adjust the spark gap to 4mm. m) Check the combustion fan blades for debris build-up. Remove any debris with a soft bristle brush or preferably compressed air. DO NOT TOUCH OR SPIN THE FAN BLADES WITH YOUR FINGERS AS THIS COULD AFFECT THE BALANCING OF THE FAN BLADES.
© MHG Heating Ltd Weather Compensation Slope System Flow Temperature Outside Air Temperature 1 = Under Floor Heating 2 = Radiator Heating 3 = Convector Heating 51 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Programing a Replacement GFA Module Controller Replacement GFA Module controller are supplied for use in any location within the cascade. The GFA module control will require programming prior to re-commissioning the combustion. A cascade communication error message will be displayed if the following process is not undertaken. **Prior to undertaking any work with a PCB please earth yourself by touching a secure earth connection within the boiler.** 1.
© MHG Heating Ltd 4. Release the GFS controller from the DIN rail using a flat bladed screw driver. 5. Open the GFA controller housing using a flat bladed screw driver. 6. Install the GFA PCB within the existing GFA housing. 1, bottom housing 2, New GFA PCB 3, Top Housing. 7. Clip the new controller on to the DIN rail and reconnect the dedicated plug assemblies. Special attention needs to be paid to the JUMPER location and the connection of the BUS2 plug.
© MHG Heating Ltd Apply power to the new GFA module controller. Set the Theta Controller to STANDBY Press and hold the and buttons simultaneously for 3 seconds. 54 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd 55 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd User Information The ProCon’s display panel provides operational information and a means of adjusting the unit to provide the required level of heating and hot water generation. Following the powering up of the appliance a series of internal checks are undertaken, This can take a number of minutes. If the unit fails to operate and displays an error code please make a note of the code prior pressing the RESET button.
© MHG Heating Ltd Operational Diagram ProCon MCS Legend Item Description MI Boiler Flow GAS Gas Inlet SC Condensate Outlet RI System Return 1 Combustion Fan 2 Air Gas Mixing Venturi 3 Heat Exchanger 4 Premix Burner 5 Flow Sensor NTC 1 6 Return Sensor NTC 2 7 Gas Valve 8 Automatic Air Vent 9 Boiler Pump 10 Minimum System water Pressure Switch 11 Pressure Relief Valve 12 Control Panel 15 Outside Air Sensor 16 Condensate Trap 17 Pressure Gauge 18 Tundish 19 Flue Gas
© MHG Heating Ltd Operational Diagram ProCon MCS Hidro Two Unit 58 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Operational Diagram ProCon MCS Hidro Three Unit 59 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Operational Diagram ProCon MCS Hidro Four Unit 60 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Sensor Resistance Table Outside Air Sensor Flow Sensors T(°C) R(kΩ) T(°C) R(kΩ) -20 1.383 10 1.783 -18 1.408 12 1.812 -16 1.434 14 1.840 -14 1.459 16 1.869 -12 1.485 18 1.898 -10 1.511 20 1.928 -8 1.537 25 2.002 -6 1.563 30 2.078 -4 1.590 35 2.155 -2 1.671 40 2.234 ±0 1.644 45 2.314 2 1.671 50 2.395 4 1.699 55 2.478 6 1.727 60 2.563 8 1.755 65 2.648 10 1.783 70 2.735 12 1.812 75 2.824 14 1.840 80 2.914 16 1.
© MHG Heating Ltd Exploded Spares Diagram MCS 210 62 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Exploded Spares Diagram MCS260 63 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Exploded Spares Diagram MCS360 64 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Exploded Spares Diagram MCS400 65 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd 66 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Exploded Spares Diagram MCS535 67 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Exploded Spares Diagram Control Panel All Models Exploded Spares Diagram Hidro 210 68 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Exploded Spares Diagram Hidro 260 Exploded Spares Diagram Hidro 320, 400 & 535 69 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
© MHG Heating Ltd Notes 70 MHG Heating Ltd Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey KT20 5LR Telephone 08456 448802 Fax 08456 448803 Email info@mhgheating.co.uk Web www.mhgheating.co.
