Stulz C7000 - SAPSM and no Supply Air Pressure Control in Case of Sensor Failure

140 EN/06.2019/G57 © STULZ GmbH – all rights reserved
C7000 INSTRUCTIONS fOR a/C UNITS
Update to version 6.46 or higher
An update will automatically be detected. The supply air pressure setpoint will be adapted.
The sensors with the purpose 22 will automatically be changed to purpose 47.
6.6.1 SAPSM and no supply air pressure control in case of sensor failure
Activation:
The SAPSM is activated by the special software option 9.
Command:
option 9 1
The preceding description of the SAPSM applies with the following addition:
As soon as a supply air pressure sensor in the zone fails, the supply air pressure control is interrupted. The
configured control with the next highest priority will be applied.
Order of priorities concerning the fan
Control according to:
1 = fixed speed (lowest)
2 = CW-standby-management
3 = Ecocool
4 = DFC
5 = temperature difference
6 = supply air pressure (highest)
NOTICE
However, the limit alarms for supply air pressure must be changed manually.