Bosch highflow 17e, highflow 21e, highflow 26e Installation & Operation Manual

1

Installation/Operating Instructions

Invented for life

MODELS

Bosch 17e
Bosch 21e
Bosch 26e

(YS1770RA, YS2170RA & YS2670RA)

INSTALLATION MANUAL

This appliance must be installed in accordance with the manufacturer’s installation instructions, AS5601,

AS/NZS3500.4, AS3000 wiring regulations and all Local Building, Water and Gas fitting regulations.

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 :

1. Correct commissioning of this appliance.

2. Ensure unit performs to the specifications stated on the rating label.

3. Demonstrate operation of unit to customer before leaving.

4. Hand these instructions to customer.

Failure to install this appliance in accordance with these installation instructions may void warranty

SAR

8512-1

*SAR8512C*

2

Page Number

Introduction 3

Dimensions 4

Technical Data 5

Appliance Location 6

Component Details 7

Gas Connection 9

Cold Water Connection 9

Hot Water Connection 10

Electrical Connection 10

Pre-Set Temperature 10

Temperature Selector Pad Installation 11

Temperature Selector Pad Wiring 11

Temperature Control Operation 12

Commissioning and Testing 12

Temperature Setting 13

USER SAFETY INSTRUCTIONS 15

In Case Of Difficulties 15

Warranty Details 16

INDEX

Installation/Operating Instructions

Invented for life

3

This Bosch water heater is an external, electronically controlled gas water heater.
This Bosch appliance is supplied set to operate without temperature selector pads at
a constant 55°C outlet temperature. To set the appliance to a different temperature,
refer to page 13 for details.

Available as optional extras are Main, Bathroom or Sub temperature selector pads.

Only one Main controller and one Bathroom controller can be
connected to the appliance along with up to 2 x Sub-controllers.

The bathroom and sub temperature selector pads have a maximum temperature
setting of 50°C for safety. To ensure compliance with Australian Standard AS/NZS

3500.4, in the bathroom area, this may be achieved by using a Bosch appliance
limited to 50°C or using a Bosch appliance with a delivery temperature greater than
50°C and installed with a tempering valve (high performance). In New Zealand,
please refer to the New Zealand Building Code and all other applicable electrical,
gas fitting and plumbing codes.

Before installing this appliance, carefully check that all packing materials have been
removed and that the appliance is correct for the gas supply to which it is to be
connected

Installation/Operating Instructions

Invented for life

4

DIMENSIONS YS1770RA, YS2170RA

Installation/Operating Instructions

Invented for life

510〜512

48

44

520

487

542

10

10

120

60

84

133

97

40

37

109

40

57

31

1085

120

10

50

11170

178

255

308〜320

49

338

350

334

2542

L

Powercableintakinghole

Powercableintakinghole

(PSflameinstallationpich)

（Perspectivedrawingfromupperofappliance）

(PSflameinstallationpich)

Bottomofcase

Outlet-waterconnectionR3/4

Inlet-waterconnectionR3/4

GasconnectionR3/4

7-φ7.2hole

Installationholeofwall

(Installedwiththreeholes)

7-φ7.2hole

Installationholeofwall

(Installedwithtwoholes)

Gasconnection

Inlet-waterconnection

Waterdrainvalve(Waterfilter)

Outlet-waterconnection

PressurerelifevalveandWaterdrainvalve

Earthconnectionscrew

Bottomofcase

Air-inlet

Flueterminal

DIMENSIONS YS2670RA

590〜592

567

622

600

120

60

84

44

48

10

10

133

49

318〜320

268

10

50

120

40

97

40

109

85

178

37

338

47

10 11170

31

350

334

253

42 25

Powercableintakinghole

Powercableintakinghole

(PSflameinstallationpich)

(PSflameinstallationpich)

（Perspectivedrawingfromupperofappliance）

Air-inlet

(Installedwithtwoholes)

7-φ7.2hole

Installationholeofwall

PressurerelifevalveandWaterdrainvalve

Earthconnectionscrew

Inlet-waterconnection

Waterdrainvalve(Waterfilter)

Outlet-waterconnection

Bottomofcase

Gasconnection

Bottomofcase

7-φ7.2hole

Installationholeofwall

(Installedwiththreeholes)

Outlet-waterconnectionR3/4

Inlet-waterconnectionR3/4

Flueterminal

GasconnectionR3/4

YS1770RA
YS2170RA

178
214

L

5

Installation/Operating Instructions

Invented for life

TECHNICAL DATA

Nominal hourly gas consumption by proportional gas control:

17e

21e

26e

135 Mj/hr

170 Mj/hr

200 Mj/hr

135 Mj/hr

170 Mj/hr

200 Mj/hr

Natural Gas LP Gas

Test Point Pressure:

Maximum Inlet Water Pressure 1000 kPa

Input voltage single phase 50Hz AC240/230 Volt

Maximum output current 1 Amp

AGA Approval certificate number 7032

Inlet gas connection male thread 20mm

Cold water connection male thread 20mm

Hot water connection male thread 20mm

Relief valve pressure setting 1600 kPa

DATA PLATE

Fitted inside of cabinet

GAS TYPE

The gas type is nominated on a temporary label located on the front cover, and on the data
plate located inside of cabinet. The gas type is the gas on which this appliance is designed to
operate.

DO NOT OPERATE WITH ANY OTHER GAS TYPE.

WARNING LABELS

Located on the right side of the cabinet- PLEASE READ THESE LABELS CAREFULLY!

YS1770RA

YS2170RA

YS2670RA

.67

.69

.72

.26

.21

.19

Natural Gas

Max (kPa)

Model

Natural Gas

Min (kPa)

.78

.91

.80

LP Gas

Max (kPa)

.23

.23

.22

LP Gas

Min (kPa)

Water heating capacity

Litres a minute raised 25°C

17e

17

21e

21

26e

26