MHG Heating GK 4, Installation And Operating Manual

Page: 2 / 44

© MHG Heating Ltd
2
MHG Heating Ltd, Unit 4 Epsom Downs Metro Centre, Waterfield, Tadworth, Surrey, KT20 5LR
0845 6448802 Telephone. 0845 6448803 Fax. Email info@mhgheating.co.uk Website www.mhgheating.co.uk
010908
Section Page #
1.0 Appliance Type 3
1.1 GK Standard 3
1.2 GK Enhanced 3
1.3 GK Combined 3
2.0 Installation Regulations and Requirements 4
2.1 Appliance Warranties 5
3.0 Dimensions GK 6
3.1 Dimensions GK Combined 7
3.2 Dimensions GK 8 Only 8
3.3 Dimensions Flue Baffle 9
3.4 Dimensions and Connections 10
3.5 Dimensions Gas Burning Option 11
3.6 Installation Clearances 12
4.0 Delivery and Mobility 13
4.1 Positioning & Leveling 13
4.2 Flue Baffle Installation 14
5.0 Technical Data 15
6.0 Pressure Relief Valve 17
7.0 Electrical Connections 18
7.1 Internal Wiring Diagrams 19
8.0 Hydraulic Configurations 20
8.1 Hydraulic Single Unit 20
8.2 Hydraulic Cascade Unit 22
9.0 Filling The System 23
9.1 Pressure Vessel 23
10.0 System Water Quality 24
11.0 Appliance Controls 25
12.0 Appliance Fault Codes 26
12.1 RVA33 Controller Setting 28
13.0 Commissioning 32
13.1 Pre-Commissioning Checks. 32
13.2 Combustion System Commissioning 32
14.0 Routine Inspection and Servicing 33
14.1 Routine Service Inspection 33
14.2 Routine Cleaning and Maintenance 33
15.0 Weather Compensation Slope Graph and Sensor Curves 36
16.0 Optional System Controls (QAA73, RVA47, RVA 63, RVA46, QAA70, QAA50, QAA10) 39
17.0 Exploded Spares Diagrams 40
18.0 Parts List 41
18.0 Installer / End Users Note 44