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Summary of Contents for MHG Heating Unvented Calorifer Range
- Page 1 © MHG Heating Ltd Unvented Calorifer Range Installation and Operating Manual MHG Heating Ltd, Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey, KT20 5LR Phone 0845 6448802 Telephone. 0845 6448803 Fax. Email info@mhgheating.co.uk Website www.mhgheating.co.uk 010313 Draft...
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Page 2: Table Of Contents
Notes on Water Quality and Scaling Maintenance Back Pressure Life Guarantee Fault Finding Installation /Service Record Notes MHG Heating Ltd, Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey, KT20 5LR Phone 0845 6448802 Telephone. 0845 6448803 Fax. Email info@mhgheating.co.uk Website www.mhgheating.co.uk 010313 Draft... -
Page 3: Mains Pressure Hot Water Appliance
Pressure & Temperature relief valve setting Maximum Primary working Pressure 2.5 BAR 5.5 BAR Maximum Solar Coil Working Pressure MHG Heating Ltd, Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey, KT20 5LR Phone 0845 6448802 Telephone. 0845 6448803 Fax. Email info@mhgheating.co.uk Website www.mhgheating.co.uk 010313... -
Page 4: Single Coil Indirect Unit
Solar Primary Flow and Return 22mm 28mm 28mm Aux Thermostat Pocket 22mm 22mm 22mm MHG Heating Ltd, Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey, KT20 5LR Phone 0845 6448802 Telephone. 0845 6448803 Fax. Email info@mhgheating.co.uk Website www.mhgheating.co.uk 010313 Draft... -
Page 5: Unvented Items Supplied
Expansion Vessel 100L Dimensions Single Coil Indirect (90-500) Single Coil Indirect (90-500) High Recovery MHG Heating Ltd, Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey, KT20 5LR Phone 0845 6448802 Telephone. 0845 6448803 Fax. Email info@mhgheating.co.uk Website www.mhgheating.co.uk 010313... -
Page 6: Twin Coil Indirect (90-500)
© MHG Heating Ltd Twin Coil Indirect (90-500) Single Coil Indirect (600-1000) Direct (90-500) MHG Heating Ltd, Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey, KT20 5LR Phone 0845 6448802 Telephone. 0845 6448803 Fax. Email info@mhgheating.co.uk Website www.mhgheating.co.uk 010313... -
Page 7: Installation Procedure
*NB Upon commissioning. The expansion vessel pressure should be adjusted to 0.2 bar less than the incoming water pressure. MHG Heating Ltd, Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey, KT20 5LR Phone 0845 6448802 Telephone. 0845 6448803 Fax. Email info@mhgheating.co.uk... - Page 8 Connect hot water draw off to connection labelled “Hot Water Draw Off”. MHG Heating Ltd, Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey, KT20 5LR Phone 0845 6448802 Telephone. 0845 6448803 Fax. Email info@mhgheating.co.uk...
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Page 9: Commissioning & Operating
Fit it by hand until almost home then tighten gently as the ‘O’ rings will seal easily. Only use genuine replacement parts which can be obtained from a MHG Water Heaters approved merchant. Ensure that the immersion heater control setting is set between 55°C and 65°C for economical operation. -
Page 10: Building Regulations
The discharge will consist of scalding water and steam. Asphalt, roofing felt and non-metallic rainwater goods may be damaged by such discharges. DIAGRAM 1 - Typical discharge pipe arrangement MHG Heating Ltd, Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey, KT20 5LR Phone 0845 6448802 Telephone. 0845 6448803 Fax. Email info@mhgheating.co.uk Website www.mhgheating.co.uk... -
Page 11: Notes On Water Quality And Scaling
To replace the pressure vessel, unscrew from threaded connection. The new pressure vessel should be adjusted to 0.2 bar below incoming pressure and then fitted to the cylinder, ensuring that the threads are sealed appropriately. MHG Heating Ltd, Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey, KT20 5LR Phone 0845 6448802 Telephone. 0845 6448803 Fax. Email info@mhgheating.co.uk... -
Page 12: Back Pressure
The effects of scale build up. Failure to carry out the annual safety check on this product will invalidate the guarantee. MHG Heating Ltd, Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey, KT20 5LR Phone 0845 6448802 Telephone. 0845 6448803 Fax. Email info@mhgheating.co.uk... -
Page 13: Fault Finding
© MHG Heating Ltd Fault Finding MHG Heating Ltd, Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey, KT20 5LR Phone 0845 6448802 Telephone. 0845 6448803 Fax. Email info@mhgheating.co.uk Website www.mhgheating.co.uk 010313 Draft... -
Page 14: Installation /Service Record
Service Service Service Service Service Service Service Service Service Service Service Service Service MHG Heating Ltd, Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey, KT20 5LR Phone 0845 6448802 Telephone. 0845 6448803 Fax. Email info@mhgheating.co.uk Website www.mhgheating.co.uk 010313 Draft... - Page 15 © MHG Heating Ltd Notes. MHG Heating Ltd, Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey, KT20 5LR Phone 0845 6448802 Telephone. 0845 6448803 Fax. Email info@mhgheating.co.uk Website www.mhgheating.co.uk 010313 Draft...
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