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RD 532i
Benchmark RD 532i User Manual
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6 72
0 61
1 447
GB
(0
3.11)
50
Appendix
10.7.2
Centr
al heating fun
ction
Fi
g.
66
6 720 6
1
0 57
6 - 26.TD
Ye
s
No
Ye
s
No
Mains
switch
ON.
Green
light
ON.
Room
thermostat
and/or mains
programmer or
link ON AN
D
Electronic facia
programmer (if
fitted) O
N AN
D
C
H control
knob ON.
CH
demand.
Burner remains OF
F
until flow temperature
is below set value.
Gas valve shuts.
Pump remains ON
.
Over temperature
shut down if water
temperature is 5°C
above set value.
Pump ON Fan to
start speed. Gas
valve opens.
Burner
stabilises at
start speed for
5-1
0 secs
Fan speed
reduces
over 1
5
secs.
Fan min.
speed for
90 secs.
Boiler
unused
for long
period.*
*Minimum
heat
input for
1
5min
.
Boiler
operates to
match
system load
and C
H
control
setting.
Ignition sequence
Ignition spark for
5 seconds.
Burner lights.
Red
light ON
.
Repeats 5 times
(N
.G.) or 3 times
(L.P
.G
.) before
lock-out.
Fan runs to
purge gas from
burner
.
C
H demand
satisfied
.
Gas valve closes.
Red light OF
F
.
Pump and Fan
run for up to 3
mins.
* NOTE: The sequence ensures that the condensate siphon is not empty
after long
OFF
periods. (
More than 24 hours without a demand).
49
51
Table of Contents
Table of Contents
2
Default Chapter
3
Safety Precautions
3
Symbols
3
1 Details of the Appliance
4
EC Declaration of Conformity
4
Standard Package
4
Description of Appliance
4
Accessories
5
Casing Dimensions
5
Layout of Appliance
6
Function
7
Electrical Wiring Diagram
8
Technical Data
9
2 Installation Regulations
10
3 Installation
11
Important Remarks
11
Domestic Hot Water
11
Sealed Systems
11
Siting the Appliance
12
Wall Mounting Frame Assembly
13
Pre-Piping the System
13
Fitting the Appliance
14
Checking the Connections
15
Flue Systems
15
Siting the Flue Terminal
16
Installation of the Flue
17
Flue Duct Preparation and Assembly
18
4 Electrical Connections
20
Connecting the Appliance
20
Connecting a TR2 Room Thermostat
21
Mains Voltage External Controls Connections
21
5 Commissioning
22
Switching the Appliance On/Off
23
Switching on the Central Heating
23
System Controls
23
Setting the Domestic Hot Water Temperature and Flow Rate
24
Domestic Hot Water Temperature
24
Hot Water Flow Rate
24
Summer Mode (Hot Water Only)
24
Frost Protection
24
Pump Anti-Seize Function
24
Fault Condition
25
5.10 Appliance Data Monitoring
25
6 Text Display
26
General Description
26
Programming
26
Deleting a Setting
27
Resetting All Parameters to Their Original Settings
27
Menu Structure
27
Setting the Time/Day
28
Setting the Time and Day
28
Holidays
28
Heating
28
Heating Programme
28
6 720 611 447 Gb (03.11
28
Setting the Economy Temp (TR2 Connected)
29
Manual Operating Mode (TR2 Not Connected)
29
Hot Water
29
Info
29
Settings
30
Heating (if TR 2 Is Connected)
30
Hot Water (Storage Tank, System Models Only)
30
Service
30
Individual Timer Programmes
30
7 Individual Settings
31
Mechanical Settings
31
Checking the Size of the Expansion Vessel
31
Setting the Central Heating Flow Temperature
31
Settings on the Bosch Heatronic
31
General Description
31
Setting the Anti-Cycle Time (Service Function 2.4)
32
Setting the Maximum CH Flow Temperature (Service Function 2.5)
32
Setting the Heating Output (Service Function 5.0)
32
Constant Hot Water Cycle Time (Service Function 6.8)
32
Variable Pump Settings (Service Function 7.0)
32
Setting the Gas/Air Ratio
32
8 Converting the Appliance to Different Gas Types
33
Setting the Gas/Air Ratio
33
Testing CO and CO2
35
9 Maintenance
36
Pre-Service Check List
37
Description of Servicing Operations
38
Replacement of Parts
41
PCB Control Board and Transformer
41
Fan Assembly
42
Pump
42
3-Way Diverter Valve
43
3-Way Diverter Valve Motor
43
Sensors
43
Gas Valve
44
Domestic Hot Water Heat Exchanger
44
Electrode Assembly
44
9.3.10 Pressure Gauge
44
9.3.11 Expansion Vessel
44
9.3.12 Pressure Relief Valve
44
9.3.13 Burner
44
9.3.14 Flow Switch
45
9.3.15 Primary Heat Exchanger
45
10 Appendix
46
10.1 Fault Codes
46
10.2 Short Parts List
47
10.7 Operational Flow Diagrams
49
10.7.1 Domestic Hot Water Function
49
10.7.2 Central Heating Function
50
Table of Contents
54
Excellence Comes as Standard
56
Safety Precautions
57
General Notes
59
Controls
63
Operating the Appliance
64
Preparation
64
Switching the Appliance On/Off
66
Controlling Central Heating
67
Switching on the Central Heating
67
Combination Boilers: Setting Hot Water Temperature
68
System Boiler with Storage Tank
69
Summer Mode, Hot Water Only (Combi Appliances)
70
Fault Condition
71
Frost Protection (Combi Appliances)
71
General Description
72
Programming
72
Text Display
72
Deleting a Setting
75
Resetting All Parameters to Their Original Settings
75
Menu Structure
76
Holidays
77
Setting the Time and Day
77
Setting the Time/Day
77
Heating
79
Heating Program
79
Setting the Economy Temperature (if TR2 Is Connected)
80
Manual Operating Mode (if TR2 Is Not Connected)
81
Hot Water
82
Hot Water Immediately (System Models)
83
Hot Water Program
83
Info
84
Heating (if TR 2 Is Connected)
85
Hot Water (Storage Tank, System Boiler Models Only)
85
Service
85
Settings
85
Individual Timer Programmes
88
Fault Finding
89
Tips on Saving Energy
90
General Information
91
Maintaining Your Appliance
92
Service
92
Fault or Breakdown
93
Your Guarantee
94
Guarantee Registration
95
Users Instructions and Customer Care Guide
98
Default Chapter
99
Operating Instructions Quick Reference
99
Excellence Comes as Standard
100
Safety Precautions
101
General Notes
102
Controls
106
Operating the Appliance
107
Preparation
107
Switching the Appliance On/Off
110
Switching on the Central Heating
111
Controlling Central Heating
111
RD 532 Boilers: Setting the Hot Water Temperature
111
Summer Mode, Hot Water Only (RD 532 Appliances)
113
Frost Protection (RD 532 Appliances)
114
Fault Condition
114
Tips on Saving Energy
115
General Information
117
Maintaining Your Appliance
117
Service
118
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Benchmark RD 532i Specifications
General
Brand
Benchmark
Model
RD 532i
Category
Water Heater
Language
English
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