Filter
Top Products
103
Toshiba
9-6. Brief method for checking the key components
9-6-1. Hydro unit
No. Component name Check procedure
1
Water heat exchange
temperature
(TC) sensor
Water inlet temperature
(TWI) sensor
Water outlet temperature
(TWO) sensor
Hot water cylinder temperature
(TTW) sensor
Floor inlet temperature
(TFI) sensor
Remove the connector and measure the resistance value with a tester. (Normal temperature)
2
Circulating pump
AC pump
Type
UPS025-65K 130
(802XWH**-E)
UPS25-80 130
(1402XWH**-E)
Remove the connection cover of the pump, and measure the resistance with a tester.
Temperature
0°C 10°C 20°C 30°C
Sensor
Water heat exchange temperature (TC) sensor
33.8
kΩ
20.35
kΩ
12.59
kΩ
7.99
kΩ
Water inlet temperature (TWI) sensor
Water outlet (TWO) sensor
Hot water cylinder temperature (TTW) sensor
Floor inlet temperature (TFI) sensor
L
N
Location Resistance value
L−N 100-200 Ω
+00A09-002_01EN_SVM_ALL_Air_to_Water.book Page 103 Monday, October 5, 2009 2:09 PM