Benchmark ZB 7-28 R 28 HE, Инструкции по установке и обслуживанию

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6 720 611 443 GB (05.04)
2
Contents
Contents
Safety precautions 3
Symbols 3
1 Details of the appliance 4
1.1 EC Declaration of Conformity 4
1.2 Standard package 4
1.3 Description of appliance 4
1.4 Accessories 5
1.5 Casing dimensions 5
1.6 Layout of appliance 6
1.7 Function (with optional extra motorised valve) 7
1.8 Electrical wiring diagram 8
1.9 Technical data 9
2 Installation regulations 10
3 Installation 11
3.1 Important remarks 11
3.2 Sealed systems 11
3.3 Siting the appliance 13
3.4 Wall mounting frame assembly 14
3.5 Pre-piping the system 14
3.6 Fitting the appliance 15
3.7 Checking the connections 16
3.8 Flue Systems 16
3.8.1 Siting the Flue Terminal 17
3.8.2 Installation of the flue 18
3.8.3 Flue duct preparation and assembly 20
4 Electrical connections 21
4.1 Connecting the appliance 21
4.2 Wiring to your system 22
4.2.1 External 230v 22
4.2.2 Internal 24v 23
5 Commissioning 24
5.1 Commissioning 24
5.2 Switching the appliance on/off 25
5.3 Switching on the central heating 25
5.4 System controls 25
5.5 Appliances with optional plug-in diverter
valve: Setting hot water temperature
26
5.6 Frost protection 26
5.7 Pump anti-seize function 26
5.8 Fault Condition 26
6 Individual settings 27
6.1 Mechanical settings 27
6.1.1 Checking the size of the expansion vessel 27
6.1.2 Setting the central heating flow temperature 27
6.1.3 Changing the heating pump characteristic
27
6.2 Settings on the Bosch Heatronic 28
6.2.1 Operating the Bosch Heatronic 28
6.2.2 Selecting the pump control mode for central
heating mode (Service Function 2.2) 28
6.2.3 Setting the anti-cycle time
(Service Function 2.4) 28
6.2.4 Setting the maximum CH flow temperature
(Service Function 2.5) 28
6.2.5 Setting the switching difference
(Service Function 2.6) 29
6.2.6 Setting the heating output
(Service Function 5.0) 29
6.3 Setting the gas/air ratio 29
7 Converting the appliance to
different gas types
30
7.1 Setting the gas/air ratio 30
7.2 Testing combustion air/flue gas at set
heat output
32
7.2.1 Testing the O
2
or CO
2
level in the
combustion air 32
7.2.2 Testing CO and CO
2
32
8 Maintenance 33
8.1 Pre-Service Check List 34
8.2 Description of servicing operations 35
8.3 Replacement of Parts 38
8.3.1 PCB control board and transformer 38
8.3.2 Fan Assembly 39
8.3.3 Pump 39
8.3.4 Optional 3-way diverter valve
39
8.3.5 3-way diverter valve motor 40
8.3.6 Sensors 40
8.3.7 Gas Valve
40
8.3.8 Electrode assembly 40
8.3.9 Pressure gauge 41
8.3.10Expansion vessel 41
8.3.11Pressure Relief Valve 41
8.3.12Burner 41
8.3.13Primary Heat Exchanger
41
9 Appendix 42
9.1 Fault Codes 42
9.2 Short parts list 43
9.3 Heating/hot water output settings (N.G) 43
9.4 Heating/hot water output settings (L.P.G) 43
9.5 Operational Flow diagrams 44
9.5.1 Central heating function 44