Question 1:
Draw a schematic with two 120 volt light bulbs in series. A 24 volt switch should bypass one of the 120 volt light bulbs and turn a third 120 volt light bulb off.
Question 2:
A 24 volt heating thermostat controls two 120 volt light bulbs, one that comes on when the thermostat calls for heat and the other when the thermostat fan switch closes.
Question 3:
Draw a schematic that has a 24 volt thermostat controlling two light bulbs. The light bulbs come on when the thermostat calls fall below the set point of 72 degrees. The same 24 volt thermostat controls 1 light bulb that turns on when the room temperature goes above the set point of 78 degrees. The fan switch on the thermostat energizes the indoor fan (blower) which is a fifth 120 volt bulb.
Question 4:
Draw a schematic that has four 120 volt light bulbs. The first bulb is controlled by a 24 volt thermostat. The first two bulbs energize when the room temperature falls below 65 degrees. The third bulb comes on when the fan switch energizes. The fourth bulb comes on when the room temperature rises above 80 degrees. When the system is calling for heat the fan is controlled by the furnace temperature. If the temperature of the furnace goes above 180 degrees the indoor blower comes on. There is a high limit that cuts off the control voltage at 210 degrees.
Question 5:
Draw a heating thermostat that energizes a 120 volt light bulb when the temperature falls below 68 degrees. A second 120 volt light bulb will energize if the temperature falls below 65 degrees. The fan switch on the thermostat controls a 120 volt PSC motor. On a call for heat the blower must have a 2 minute delay for the furnace to heat up. If the fan is turned on from the fan switch there should be no delay. There is a high limit that shuts control voltage down at 200 degrees.
Question 6:
Draw a heating thermostat that energizes a 120 volt light bulb when the temperature falls below 68 degrees. A second 120 volt light bulb will energize if the temperature falls below 65 degrees. The fan switch on the thermostat controls a 120 volt PSC motor. On a call for heat the fan will come on at 150 degrees in the furnace. There is a high limit that shuts all control voltage down at 200 degrees.
Question 7:
Draw a heating thermostat that energizes a 120 volt light bulb when the temperature falls below 68 degrees. A second 120 volt light bulb will energize if the temperature falls below 65 degrees. The fan switch on the thermostat controls a 120 volt PSC motor. On a call for heat the blower must have a 2 minute delay for the furnace to heat up. If the fan is turned on from the fan switch there should be no delay. There is a high limit that shuts control voltage down at 200 degrees. The fan should run for 5 minutes after the call for heat ends.