FIGURE 4-2
High Limit Dial (left)
and Control Switch
(right) on a Solar
Control
Jumper the collector sensor terminals on the control. Once the system is running
hold the leads of an appropriate resistor against the storage sensor terminals. The
system should turn off, as the control is being told the storage tank is above the high
limit temperature.
FIGURE 4-3
Checking High Limit
Function with a Single
Resistor
TROUBLESHOOTING
4.3 TROUBLESHOOTING OPERATIONS
116