Bosch BC2680RA User manual

SBB808C
Rev. 10/14
Installation Instructions
*SBB808C*
Installation Manual
External Models
BC2680RA
BC2680RA5
BC2180RA
BC2180RA5
AU Service Department: 1300 30 70 37
NZ Service Department: 0800 54 33 52
To be installed and serviced only
by an authorised person
This appliance is not suitable for
use as a pool heater
The "authorised installing person" is
responsible for:
appliance.
2. Ensure unit performs to the
specifications stated on the
3. Demonstrate operation of unit to
customer before leaving.
4.
customer.
Failure to install this appliance in accordance with these installation
instructions may void warranty
In the interest of continued product improvement, Bosch reserves the
right to alter these specifications without notice.
1. Correct commissioning of this
rating label.
Hand these instructions to
This appliance must be installed in accordance with the manufacturer's
installation instructions, AS/NZS5601, AS/NZS3500.4, AS3000 wiring
regulations and all Local Building, Water and Gas fitting regulations.

2
Installation Instructions
1. Included Accessories ............................................................................. 4
2. Optional Accessories ............................................................................. 4
3. Dimensions ............................................................................................. 5
4. Component Details ................................................................................. 6
5. Before Installation .................................................................................. 7
6. Specifications ......................................................................................... 8
7. Choosing Installation Site...................................................................... 9
8. Installation Clearances.......................................................................... 10
9. Installation .............................................................................................. 12
10. Gas Piping .............................................................................................. 13
11. Water Piping ........................................................................................... 14
12. Condensate Piping ................................................................................ 16
13. Electrical Wiring..................................................................................... 17
14. Maintenance ........................................................................................... 20
15. Trial Operation ....................................................................................... 20
WATER QUALITY ......................................................................................... 22
Contents

3
Installation Instructions
Potential dangers from accidents during installation and use are divided into the following three
categories. Closely observe these warnings, they are critical to your safety.
Prohibited Disconnect
Power Earth Be sure to do
Requests to Installers
• In order to use the water heater safely, read this installation manual carefully, and follow the
installation instructions.
•Failures and damage caused by erroneous work or work not as instructed in this manual are not
covered by the warranty.
• Check that the installation was done properly in accordance with this Installation Manual upon
completion.
• After completing installation, please either place this Installation Manual in a plastic pouch and
attach it to the side of the water heater, or hand it to the customer to retain for future reference.
WARNING: If the information in this manual is not followed exactly, a fire or explosion may result
causing property damage, personal injury or death.
Installation Manual
CONDENSING GAS WATER HEATER
BC2680RA BC2680RA5 (Outdoor Installation)
BC2180RA BC2180RA5
DANGER indicates an imminently hazardous situation which,
if not avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation which,
if not avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation which,
if not avoided, may result in minor or moderate injury.
DANGER
CAUTION
WARNING
CAUTION
Robert Bosch
(Australia) Pty. Ltd.
• The water heater must be commissioned including checking gas supply pressures at maximum
demand.
• The operation of the water heater should be explained including normal operation & regular
maintenance.
CAUTION

4
Installation Instructions
1. Included Accessories
The following accessories are included with the unit.
Check for any missing items before starting installation.
Q’tyShapePart
Anchoring Screw 1
each
Part Shape Q’ty
5
Owner's Guide,
Installation Manual
(this document)
2. Optional Accessories
The accessories listed below are not
included with the units, but may be necessary
for installation.
Q’tyShapePartPart Shape Q’ty
1
Main Controller
(YPRM67XBN) 1Bathroom Controller
(YPRS67XBN)
Sub Controller
(YPRP62XBN) 1
• Maximum two Sub controllers can be used. See P.18 for details.

5
Installation Instructions
3. Dimensions
HEIGHT OF EACH FITTING
FROM BOTTOM OF CASE
CONDENSATE DRAIN
58
45
HOT WATER OUTLET
50
COLD WATER INLET
30
GAS INLET
1010
50
120
6
×
13 OBLONG HOLE
85
542
10
10
487 31
170
40
27
11
133
AIR INLET
60
120
90
WATER DRAIN VALVE
HOT WATER OUTLET
CONDENSATE DRAIN
WATER DRAIN VALVE
COLD WATER INLET
GAS INLET
WATER DRAIN VALVE
(WATER FILTER)
WIRING THROUGHWAY
AIR INLET
COLD WATER INLET
(
R3/4
)
HOT WATER OUTLET(R3/4)
350
334
217
5628
520
28
21 45 87
97
30
96
102
252
40
296
(VIEW FROM TOP)
GAS INLET(R3/4)
WIRING THROUGHWAY
CONDENSATE DRAIN(R1/2
)
338
<Unit : mm>

6
Installation Instructions
4. Component Details
• BC2680RA series, BC2180RA series
Primary heat exchanger
Flame rod
Burner manifold & gas valve
Circuit board
Fan motor
Gas inlet
Secondary heat exchanger
Igniter
Main flow control valve
Hot water outlet
Cold water inlet
Neutraizer
Flue collar
Anti-frost heater
Thermal fuse
Power code
Water drain valve
Drain outlet
Water drain valve
Water flow sensor
Water inlet thermistor
Anti-frost heater
Water outlet thermistor
Anti-frost heater
Water level electrode
High limit switch
Ignition plug
Freeze protection thermostat

7
Installation Instructions
5. Before Installation
Do Not Use Equipment for Purposes Other Than Those Specified
•Do not use for other than increasing the temperature of the water supply, as unexpected accidents
may occur as a result.
Check Water Supply Quality
•If the water supply is hard, acidic or otherwise impure, treat the water with approved methods in
order to ensure full warranty coverage.
See water quality statement on page 22.
Frost Protection
• When installed, power to the unit must be kept switched on, otherwise the appliance should be drained.
This prevents water freezing, and causing damage to the water heater.
WARNING
CAUTION
Check the Gas
•Check that the data plate (located inside of front cover) or
a temporary label (located on the front cover)
indicates the correct type of gas.
•Check that the gas supply line is sized for
BC2680RA(5): NG 175 MJ/hr, LP 185 MJ/hr
BC2180RA(5): NG 145 MJ/hr, LP 149 MJ/hr for this unit.
• DO NOT OPERATE WITH ANY OTHER GAS TYPE.
Check the Power
•The power supply required is 230/240VAC, at 50Hz.
Using the incorrect voltage may result in fire or
electric shock.
Warning labels
•Located on the left side of the casing -PLEASE READ THESE LABELS CAREFULLY!
For NG Gas

8
Installation Instructions
BC2680RA BC2680RA5
Power Flue
200 -1,000 kPa
2.5 L/min.
520mm (Height) x 350mm (Width) x 170mm (Depth)
18 kg
0.9 L
R 3/4 (20mm)
R 3/4 (20mm)
R 3/4 (20mm)
230 / 240 VAC (50Hz)
46.8W Freeze Prevention 130W
Anchoring Screws
Specifications
6. Specifications •Specifications may be changed without prior notice.
•The capacity may differ slightly, depending on the water
pressure, water supply, piping conditions, and water temperature.
Performance
Model Name
Type
Operating Pressure
Minimum Flow Rate
Dimensions
Weight
Water Holding Capacity
Accessories
Installation
Air Supply/Exhaust
Connection
Sizes
Power Supply
Water Inlet
Hot Water Outlet
Gas Inlet
Supply
Consumption
Item
Gas
Consumption
Maximum Hot Water
Capacity
NG
LP
25°C Rise 26 L/min.
Maximum Performance
175 MJ/hr
185 MJ/hr
R 1/2 (15mm)
Water Outlet
(Drain water)
Outdoor, Wall Mounted
Approval certification number SAI-400151
BC2180RA BC2180RA5
17 kg
0.8 L
21 L/min.
145 MJ/hr
149 MJ/hr
40.6W Freeze Prevention 130W

9
Installation Instructions
7. Choosing Installation Site
* Locate the appliance in an area where water leakage from the unit or connections will not result in
damage to the area adjacent to the appliance or to the lower floors of the structure. When such
locations cannot be avoided, it is recommended that a suitable drain pan, adequately drained, be
installed under the appliance. The pan must not restrict combustion air flow.
DANGER
Indoor
•This water heater is for outdoor installation only.
Never install it indoors.
Do not enclose the termination with corrugated
metal or other materials.
This will cause carbon monoxide
poisoning and a potential fire
hazard.
• Avoid places where fires are common, such as those where petrol,
benzene and adhesives are handled, or places in which corrosive gases
(ammonia, chlorine, sulfur, ethylene compounds, acids) are present.
May result in fire.
•Avoid installation in places where dust or debris will accumulate.
Dust may block the air-supply opening, causing the performance of the
device fan to drop and incomplete combustion to occur as a result.
•Avoid installation in places where special chemical agents
(e.g., hair spray or spray detergent) are used.
Ignition failures and malfunction may occur as a result.
• Carbon Monoxide Poisoning Hazard. Do not install this water heater in a
mobile home, recreation vehicle or on a boat.
Prohibited
WARNING

10
Installation Instructions
8. Installation Clearances
Before installing, check for the following:
The location of the flue terminal must comply with the clearances shown on this page. If you are
unsure about clearances not indicated here, in general refer to AS/NZS5601, or your local authority.
In Western Australia refer to the WA Office of Energy rules and regulations.
Flue outlet must be free from any combustible material.
WARNING
•Install the water heater in a location where it is free from obstacles and
stagnant air.
•Consult with the customer concerning the location of installation.
•Do not install the water heater near staircases or emergency exits.
•Do not install the water heater where the exhaust will blow on outer
walls or material not resistant to heat. Also consider the surrounding
trees and animals.
The heat and moisture from the water heater may cause discoloration of
walls and resinous materials, or corrosion of aluminium materials.
•Do not locate the vent termination directed towards a window or any
other structure which has glass or wired glass facing the termination.
•Install in a location where the exhaust gas flow will not be affected by
fans or range hoods.
• Take care that noise and exhaust gas will not affect neighbours.
•Avoid installation where the unit will be exposed to excessive winds.
•Before installing, make sure that the vent termination will have the proper
clearances according to AS/NZS5601, or your local authority.
•On combustible surfaces e.g. weatherboards etc. it is not required to
install a fire proof back board.
CAUTION
Prohibited