gledhill mCHP BMA 225, Installation And Servicing Instructions

Page: 3 / 44

Page 3
mCHP
BOILERMA
TE
A-CL
ASS
CONTENTS
Section Page
1.0 IMPORTANT NOTICES
4
2.0 SYSTEM DESCRIPTION 6
2.1 iNTRODUCTiON 6
2.2 OPERATiON 8
2.2.1 Domestic Hot Water 8
2.2.2 Space Heating 8
2.2.3 Store Heating - Not Active 9
2.2.4 Store Heating - Active 9
2.2.5 Electric Backup
10
2.3 USER CONTROLS 11
2.3.1 On - Off Switch 11
2.3.2 Push button Functions 11
2.3.3 Red Lamp (LED) Functions 11
2.3.4 CH and HW Programmer 11
3.0 TECHNICAL SPECIFICATION 12
3.1 GENERAL 13
3.2 PUMP PERFORMANCE 16
3.3 HOT WATER PERFORMANCE 16
3.4 ELECTRICITY SUPPLY AND WIRING DIAGRAMS 18
3.5 APPLIANCE CONTROLLER 18
3.6 Appliance Selection 18
3.6.1 Display in Normal Mode 19
3.6.2 Sensor Temperature Reading 19
3.6.3 Control Temperature Set-point Reading 19
3.6.4 Fault Code indication 19
3.6.5 Computer interface 19
4.0 HEATING AND HOT WATER
SYSTEM DESIGN 22
4.1 HOT AND COLD WATER SYSTEM 22
4.1.2 Use in Hard Water Areas 23
4.1.3 Hot and Cold Water Distribution Network 23
4.1.4 Taps and Shower fittings 23
4.1.5 Dead Leg Volumes 23
4.2 SPACE HEATING SYSTEM DESIGN 24
4.3 mCHP CIRCUIT DESIGN 25
5. INSTALLATION AND WIRING 26
5.1 SITE REQUIREMENTS 26
5.2 PREPARING APPLIANCE FOR INSTALLATION 26
5.3 PIPEWORK CONNECTIONS 28
5.4 ELECTRICAL WIRING 29
5.4.1 General 29
5.4.2 Wiring the Appliance 29
6. COMMISSIONING 32
6.1 INITIAL SYSTEM FILLING 32
6.2 CLEANSING AND WATER TREATMENT 32
6.2.1 Water Treatment 32
6.2.2 Power Flushing/Cleaning of the Heating System 32
6.2.3 Cleansing Hot & Cold Water and Treatment 32
6.3 COMMISSIONING mCHP UNIT & BOILERMATE 33
6.4 COMMISSIONING SPACE HEATING 33
6.5 COMMISSIONING DOMESTIC HOT WATER 34
6.6 COMMISSIONING THE STORE CHARGE
CONTROL SET POINTS 34
6.7 HAND OVER TO USER 34
7. SERVICING 34
7.1 ANNUAL SERVICE 34
7.2 CHANGING COMPONENTS 34
8. SHORT PARTS LIST 35
APPENDIX A 36
APPENDIX B 37
APPENDIX C 40
APPENDIX D 41
9. TERMS AND CONDITIONS OF TRADING 42