9-6.Brief Method For Checking The Key Components; 9-6-1.Hydro Unit - Toshiba HWS-803XWHM3-E Service Manual

9-6. Brief method for checking the key components
9-6-1. Hydro unit
No. Component name
Water heat exchange
temperature
(TC) sensor
Water inlet temperature
(TWI) sensor
Water outlet temperature
1
(TWO) sensor
Hot water cylinder temperature
(TTW) sensor
Floor inlet temperature
(TFI) sensor
Circulating pump
AC pump
Type
UPS025-65K 130
2
(802XWH**-E)
UPS25-80 130
(1402XWH**-E)
Remove the connector and measure the resistance value with a tester. (Normal temperature)
Sensor
Water heat exchange temperature (TC) sensor
Water inlet temperature (TWI) sensor
Water outlet (TWO) sensor
Hot water cylinder temperature (TTW) sensor
Floor inlet temperature (TFI) sensor
Remove the connection cover of the pump, and measure the resistance with a tester.
L
N
124
Check procedure
Temperature
0°C
33.8 20.35
kΩ
Location
−
L N
10°C 20°C 30°C
12.59 7.99
kΩ kΩ kΩ
Resistance value
100-200 Ω