Alarm Categories; Alarm Window; Alarm Functions - Bosch Rego 1000 User Manual

7.5

Alarm categories

The alarms are divided into different categories depending on the type
and seriousness of the fault. Alarm category is displayed in the alarm
window and alarm log.
Categories A-H are alarms, categories I-J are warnings/information, categories K-M are warnings, category Z is information.
Meaning
Stops the compressor
Stops additional heat
Alarm lamp, alarm buzzer is activated
Alarm delay
Requires acknowledgement to restart
Can be restarted before acknowledgement
Menu display must be acknowledged
Placed in the information log
Table 10 Alarm categories
[In] Temporary stop of compressor. The information may recur a
number of times during a certain time period; if there are more
during the period, a category A alarm is sounded.
[J] Temporary stop of compressor. The information may recur a
number of times during a certain time period; if there are more
during the period, a category A alarm is sounded.
[M] Used for board connection problems.
7.6

Alarm window

When an alarm/warning occurs, the display shows information about
what has happened. At the same time, information is saved in the alarm
log. The alarm symbol is displayed in the initial menu of the control panel
( Chapter 4.3).
Example of an alarm:
Fig. 26
7.7

Alarm functions

The different alarms that can occur are presented here, the alarm text is
indicated in the heading.
Most alarm texts contain a designation of the part of the heat pump that
has caused the alarm. Always indicate the whole alarm information when
you are in contact with the installer.
E21 refers to heat pump 1, E22 refers to heat pump 2.
E11 refers to circuit 1, E12 circuit 2, E13 circuit, 3, etc.
Txx refers to different temperature sensors.
7.7.1 High hot gas temperature E2x.T6
Function: Compressor stops. Activated when the temperature from the
compressor becomes too high. The alarm can occur in individual cases
under extreme service conditions.
Alarm timer starts: Yes.
Reset condition: The hot gas temperature drops to the permitted
temperature.
Category: A.
Alarm lamp/buzzer: Yes.
Restart: Acknowledgement is required.
▶ Contact the dealer if the alarm remains active for more than three
hours or recurs often.
Rego 1000 – 6 721 831 662 (2021/03) en
A B C D
X X X X
X X X X
5s 3s 15 min 1 min
X X X X
X X X X
7.7.2
Function: Compressor stops. Activated when the pressure in the
refrigerant circuit of the heat pump becomes too low.
Alarm timer starts: Yes.
Reset condition: The pressure goes back to the permitted level.
Category: A.
Alarm lamp/buzzer: Yes.
Restart: Acknowledgement is required.
▶ Check and clean the particle filter when required.
▶ Contact the dealer if the alarm remains after acknowledgement.
7.7.3
6 720 807 583-12.1I
Function: Compressor stops. Activated when the pressure in the
refrigerant circuit becomes too high.
Alarm timer starts: Yes.
Reset condition: The pressure goes back to the permitted level.
Category: A.
Alarm lamp/buzzer: Yes.
Restart: Acknowledgement is required.
▶ Contact the dealer if the alarm remains after acknowledgement.
7.7.4
Function: Compressor stops. Activated when the pressure in the
collector circuit becomes too low.
Alarm timer starts: Yes.
Reset conditon: The pressure goes back to the permitted level.
Category: A.
Alarm lamp/buzzer: Yes.
Restart: Acknowledgement is required.
▶ Contact the dealer if the alarm remains after acknowledgement.
7.7.5
Function: Alarm is given if the collector circuit temperature is too low
and if warning of this has been given several times.
Alarm timer starts: Yes.
E F G h In
X X
X X
X X X X
5s 1s 1s 1s 5s
X
X X X X
X X X X
X
Tripped low pressure switch E2x.RLP
Tripped high pressure switch E2x.RHP
Low pressure collector circuit
Low temperature collector circuit in E2x.T10
Alarm
J K L M Z
X
X
5s 2s 5s 0s 0s
X X X
X X
X X
15