9. Troubleshooting
ThermiStar L .. SP 01/03/10
70
Troubleshooting
Fault
Cause
Remedy
Defect on input
side
(LP fault)
Ventilator(s) is/are not running
Check fuse, check relay
Check control signal 0-10 V
Condenser dirty/iced over
Clean condenser, initiate thawing;
check temperatures on condenser
Expansion valve incorrectly adjusted /
defective
Request factory service
Refrigerant circulation interrupted (shut-off
valve closed, filter dryer dirty).
Request factory service
Water inside the refrigerant circulation (hu-
midity indicator in the refrigerant sight glass
yellow/red)
Request factory service
Temperature of the heat source too low.
-15°C application limit reached
Water in the condenser too cold
(below 20°C)
Preheat heating water with electrical heating
element
Quick temperature change in the condenser. Check volume flow
Low refrigerant level (see sight glass).
Request factory service
Controller parameter set incorrectly.
Set parameters according to guide
Wrong position of sensor or insufficient
mounting.
Manual unlocking may possibly be
necessary if the low pressure monitor
triggers.
Faults on output
side
(HP fault)
Heating pump is not running
Check fuse;
check relay/ contactor K4;
Check running wheel for dirt build-up
Water circulation interrupted or insufficient
(possibly not enough heating circuits open).
Check water circulation in heating system;
open radiator valves or positioning drives
Heating water temperature too high.
No heat discharge, e.g. heat exchanger in
the boiler of the service water heater is too
small
Check technical specifications for service wa-
ter heater, min. heat exchanger surface
0.2m²/kW heat output
Air in water circulation.
Vent the water circulation.
Dirt catcher clogged.
Clean dirt catcher
Circulation pump defective or wrong rotation
direction.
Check the circulation pump, reverse or
replace if necessary
Controller parameter set incorrectly.
Set parameters according to guide
Manual unlocking may possibly be
necessary if the high pressure monitor
triggers.
Содержание 98.30000-6324
Страница 1: ...ThermiStar L SP 01 03 10 ...
Страница 18: ...5 Technical Data ThermiStar L SP 01 03 10 18 5 2 Type plate Fig 4 Sample type plate ...
Страница 21: ...ThermiStar L SP 01 03 10 5 Technical Data 21 ...
Страница 39: ...ThermiStar L SP 01 03 10 6 Assembly 39 Fig 11 Sensor cable heat source intake 5 ...
Страница 68: ...8 Maintenance ThermiStar L SP 01 03 10 68 8 4 Spare part drawing and legend Fig 40 ...
Страница 88: ...Your notes ThermiStar L SP 01 03 10 88 ...
Страница 89: ...ThermiStar L SP 01 03 10 Your notes 89 ...
Страница 90: ...Your notes ThermiStar L SP 01 03 10 90 ...
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