is there fuel pump relay in the 1996 windstar
1967 and later models have 12-volt systems (12-volt battery) !!
You will need an interpose relay. This relay will have a 24 volt coil. The circuit power for the relay will come from a 120VAC to 24VAC volt transformer. The 24 VAC circuit will have the thermostat in series with the coil of the relay. Thermostat calls for heat, the coil energizes and the relay's contacts close. Your circulator pump is controlled by the relay. On selecting the relay make sure that the contact ratings can handle the full load amps of the circulator. A contact rating of 120 volts at 15 amps will do very nicely.
On would use a 12 volt battery for a lot of things. For example, a lot of Fisher Price toys and games, power wheels vehicles have a type of 12 volt system.
12 volt.
12 volt
could be, but the think the low pressure swith is telling u the system is low on freon.
P1683. Speed Control Power Relay Or Speed Control 12 Volt Driver Circuit
12 volt
12 Volt 70 AH battery
12 volt
It is a 4.8 amp 12 volt circuit breaker for the windshield wipers