<The changing procedure of the maximum temperature setting.>
1. Turn the water heater off by pressing the ON/OFF button on the remote controller.
2. Disconnect electrical power to the water heater.
The bathroom and sub controllers have a maximum temperature setting of 50° C for safety. To ensure compliance with Australian Standard AS/NZS3500.4, for sanitary areas, which may be achieved by using a Bosch appliance with a delivery temperature greater than 50° C and installed with a tempering valve. In New Zealand, please refer to the New Zealand Building Code and all other applicable electrical, gas fitting and plumbing codes.
Install the remote controller according to the installation guide.
* The Bosch water heater has been factory set to allow a maximum temperature setting of 55° C.
To change the maximum temperature setting, connect the temperature selection wire as shown in the below diagram. The default temperature is 55° C when the temperature selection wire is not connected.
Only Main Controller Only Bathroom Controller Only Sub Controller
Main & Bathroom Controller
Main, Bathroom & 1 or 2 Sub Controllers Main & Sub Controller
Bathroom & Sub Controller
Works Won't work Won't work Works Works Won't work Won't work
The following combination of remote controls will operate the water heater.
Main controller
Bathroom controller
Sub controller
Max temperature 75° C *
Max temperature 50° C
Max temperature 50° C
Bathstop
YPRM67XB
YPRS67XB
YPRP62XB
* Maximum temperature is controlled by the maximum default temperature set in the water heater.
Installation Instructions
Remote Controller
The remote controller will indicate when the neutralizer unit is in need of replacement by displaying an error code. Therefore, the remote controller should always be installed with this water heater in order to prevent an unexpected disruption of hot water service.
Applicable Model
| | | CONNECTOR |
3. Remove the front cover of the water heater (4 screws). | | | TEMPERATURE |
| | ADJUSTMENT |
| | WATER |
4. Connect "WATER TEMPERATURE ADJUSTMENT CONNECTOR" tag | | | |
connector to temperature that wants to switch "75° C (red wire)" or "60° C | | | |
(yellow wire)" tag connector as shown on the right. | | | |
5. Replace the front cover of the water heater (4 screws). | | | |
| | |
"60° C" tag | "75 ° C" tag | | |
6. Reconnect electrical power to the water heater. | WATER TEMPERATURE |
| ADJUSTMENT CONNECTOR |
Remote controller | Factory Setting | Connect "75° C" | Connect "60° C" |
YPRM67XB | 37 - 55° C | 37 - 75° C | 37 - 60° C | |
YPRS67XB | 37 - 50° C | 37 - 50° C | 37 - 50° C | |
YPRP62XB | 37 - 50° C | 37 - 50° C | 37 - 50° C |
* Bath Fill temperature setting is 37 - 48° C.
WARNING 
•When changing the temperature, make sure to confirm with the customer that the temperature of the hot water will be very high and that there is a risk of scalding.
It is recommended that for sanitary fixtures use primarily for the purpose of personal hygiene, that a temperature control device be fitted (such as a tempering valve) as per AS3498.
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