Theratherm 09i, User And Service Manual

Page: 26 / 47

24 A Division of:
PP 10
Piping
temperature too
high protection
under cooling
mode
1. Ambient temperature is too high or the
water temperature is too high in cooling
mode
2. Refrigeration system is abnormal
1. Check the scope of using
2. Check refrigeration system
PP 11
Water
temperature (T2)
too low
protection under
cooling mode
1. Low water flow
2. T2 temperature sensor abnormal
1. Check water pump and waterway
system
2. Change T2 temperature sensor
Remarks:
1. In heating mode, if the water out temperature is higher than the set temperature over 7
℃
, LED controller
displays EE04 for water over-heating protection.
2. In cooling mode, if the water out temperature is lower than the set temperature over 7
℃
, LED controller
displays PP11 for water over-cooling protection.
T
water out
T
SET Temp.
+7
℃
T
SET Temp.
+5
℃
EE04 Water Heating Protection
T
water out
T
SET Temp.
-5
℃
T
SET Temp.
-7
℃
PP11 Water Cooling Protection
7.2 Other Malfunctions and Solutions (No display on LED wire controller)
Malfunctions Observing Reasons Solution
Frequency Decrease
Compressor Stop and EE04 displays
Normal Operation
Normal Operation
Frequency Decrease
Compressor Stop and PP11 displays