the right size fuse will be specified on the units data plate it will vary most likely will be a 20 or 30 amp though
The wiring to the unit is either not on the right type of breaker switch or the unit is not hooked up directly to the breaker box at all.
There are only two conditions that cause a breaker to trip. An overload condition of the connected load is one cause. To cause an overload condition on a breaker that supplies a garbage disposal, the motor in the unit would have to be jammed. Turn the breaker off and see if you can turn the blades in the unit. This might have to be done from the under side, look for the motors cooling fan on the bottom of the motor and see if you can turn it. If the breaker trips instantaneously when the unit is turned on, then there could be a wire grounding in the motor junction box. Same scenario, turn the breaker off, open the junction box and look for wiring problem. Use your power of smell, it is a fine diagnostic tool when it comes to burnt electrical equipment.
NO!
No
There is no reset button on a central air unit, there is a small breaker or fuse box outside next to the unit, it is possible the fuse is blown or breaker tripped.
If the breaker only trips once a week you may have a bad breaker or the breaker may not be large enough for your A/C unit. You should also have an electrician look for any loose connections from the unit to the breaker panel. (It is not uncommon to have a bad breaker)
No, a residential condo does not require a main breaker in each unit. Typically, the main breaker is located in the electrical room or utility room of the building, and it controls the power supply to all the units. Each unit may have individual circuit breakers, but a main breaker is not required in each unit.
Even though the A/C unit is outside, the breaker for it will be in the entrance panel box inside your home. It should be clearly marked.
In the US a miniature circuit breaker, sold in a single unit, is about 15$, about the same as a regular breaker. If sold as a double unit, meaning two mini breakers installed into one housing, then it is about 25$.
Same as any sink. The vacuum breaker installs in the backwash unit. Just plumb in hot & cold, and plumb out a drain line.
The ampere frame rating for a circuit breaker designates how the circuit breaker should be configured. It also states the trip unit of the amp.
Gram (g), Kilogram (kg), Metric Iron