User Manual

21
Monitor efficiency of heat recovery system
M
Xx [EAT]Xx [°C]
Measuring arrangement for exhaust air
Ventilation
Synco RMU7x0
Ensure optimum heat recovery operation.
– Savings on operating costs by alarming in the event of insufficient
heat recovery efficiency.
– Comparative measurements between outside air, room/extract
and exhaust air temperature. Heat recovery efficiency is
determined from these values. A message is generated if
efficiency is below the settable fault status message threshold.
– Possible causes include a dirty heat exchanger or electro-
mechanical fault to the heat recovery damper.
– Outside air and room/extract air temperature sensors.
– Exhaust air temperature (supplemental sensor depending on the
measurement arrangement).
Main menu > Settings > Aggregates> Heat recovery equipment
Operating line Recommen
dation
Comments
Measurement arrangement Exhaust air
Efficiency limit 50% From ventilation supplies
(heat recovery data)
No. Text
3111 HR efficiency deviation
Further information
Topic Doc. Sec. Comments
Heat recovery equipment P3150 10.4 Principles and additional details
Monitor efficiency P3150 10.4.4 Principles and additional details
Conditions P3150 10.4.4 Take note of the section on conditions
Plant
Controller
Target
Savings potential
Description
Prerequisites
Enable function
Fault status
message