Table Of Contents - Benchmark CS1 Installation And Servicing Instructions

Contents
Contents
Safety precautions
Symbols
1 Details of the appliance
1.1 EC Declaration of Conformity
1.2 Standard package
1.3 Description of appliance
1.4 Accessories
1.5 Casing dimensions
1.6 Layout of appliance
1.7 Function (with optional extra motorised valve) 7
1.8 Electrical wiring diagram
1.9 Technical data
2 Installation regulations
3 Installation
3.1 Important remarks
3.2 Sealed systems
3.3 Siting the appliance
3.4 Wall mounting frame assembly
3.5 Pre-piping the system
3.6 Fitting the appliance
3.7 Checking the connections
3.8 Flue Systems
3.8.1 Siting the Flue Terminal
3.8.2 Installation of the flue
3.8.3 Flue duct preparation and assembly
4 Electrical connections
4.1 Connecting the appliance
4.2 Mains Voltage external controls connections 22
4.3 Wiring to your system
4.3.1 Pre-wired Remote S Plan
5 Commissioning
5.1 Commissioning
5.2 Switching the appliance on/off
5.3 Switching on the central heating
5.4 System controls
5.5 Appliances with optional plug-in
diverter valve: Setting hot water temperature 25
5.6 Frost protection
5.7 Pump anti-seize function
5.8 Fault Condition
2
3 6 Individual settings
6.1 Mechanical settings
6.1.1 Checking the size of the expansion vessel
3
6.1.2 Setting the central heating flow temperature 26
6.1.3 Changing the heating pump characteristic
6.2 Settings on the Bosch Heatronic
4
6.2.1 Operating the Bosch Heatronic
4
6.2.2 Selecting the pump control mode for central
4
heating mode (Service Function 2.2)
4
6.2.3 Setting the anti-cycle time
5
(Service Function 2.4)
5
6.2.4 Setting the maxim CH flow temperature
6
(Service Function 2.5)
6.2.5 Setting the switching difference
8
(Service Function 2.6)
9
6.2.6 Setting the heating output
(Service Function 5.0)
6.3 Setting the gas/air ratio
10
7 Converting the appliance to
11
different gas types
11
7.1 Setting the gas/air ratio
11
7.2 Testing combustion air/flue gas at set
13
heat output
14
7.2.1 Testing the O
14
combustion air
15
7.2.2 Testing CO and CO
16
16
17
8 Maintenance
18
8.1 Pre-Service Check List
20
8.2 Description of servicing operations
8.3 Replacement of Parts
8.3.1 PCB control board and transformer
21
8.3.2 Fan Assembly
21
8.3.3 Pump
8.3.4 3-way diverter valve
22
8.3.5 3-way diverter valve motor
22
8.3.6 Sensors
8.3.7 Gas Valve
23
8.3.8 Electrode assembly
23
8.3.9 Pressure gauge
24
8.3.10Expansion vessel
24
8.3.11Pressure Relief Valve
24
8.3.12Burner
8.3.13Primary Heat Exchanger
25
9 Appendix
25
9.1 Fault Codes
25
9.2 Short parts list
9.3 Heating/hot water output settings (N.G)
9.4 Heating/hot water output settings (L.P.G)
9.5 Operational Flow diagrams
9.5.1 Central heating function
or CO level in the
2 2
2
6 720 610 601 GB (03.02)
26
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