Siemens RVA63.280 Basic Documentation page 35

Siemens Building Technologies
Landis & Staefa Division
• Check if d.h.w. heating is released
• Check wiring and fuse of the charging pump (input test)
• Check wiring of the d.h.w. temperature sensor (output test)
2.8.1.8 The room temperature does not agree with the required temperature
level:
• Check the room temperature setpoints
• Is the required operating mode indicated?
• Is automatic operation overridden by the room unit?
• Are weekday, time of day and the displayed heating program correct?
• Has the heating curve slope been correctly set?
• Check wiring of outside sensor
2.8.1.9 Heating plant does not function properly
• Check all parameters based on the setting instructions "Heating engineer" and the
operating instructions "End-user". especially the preselection of the double function
• Make the input test
• Make the output test
• Check the electromechanical control thermostat (TR) and the manual reset safety
limit thermostat (STB)
2.8.1.10 Frost protection for the plant does not function at all, or does not
function correctly
• Check correct functioning of the burner
• Check correct functioning of the pumps
• Frost protection for the plant in the case of pump heating circuits with active room
temperature limitation
2.8.1.11 Quick setback or boost heating does not function
• Check settings made on the heating engineer's level
• Fühler an A6,A7 kontrollieren (Eingangtest).
• Check the sensor connected to A6, A7 (input test)
2.8.1.12 Fault status signal; display shows "ER"
• For cause of error, refer to section "Parameter settings for end-user" on line 50
Basic Dokumentation RVA63.280, RVA53.280
35/184
CE1P2374E
19.04.2001