Hatco Corporation
Booster Water Heater Presentation
35
Testing the Temperature
Probe
ºC
103.90
10
107.79
20
111.67
30
115.54
40
119.40
50
123.24
60
127.07
70
130.89
80
134.70
90
138.50
100
Location of Part inside the Unit
=
°
C
Testing the 12 Volt Stepper Motor
•
Resistance between Red & Yellow is 6.7
W (
+/- 10%)
•
Resistance between Blue & Tan is 6.7
W (
+/- 10%)
6.7
W
6.7
W
Red
Yellow
Blue
Tan
Red
Yellow
Blue
Tan
