a pressure switch on a power vented water heater\noperates the blower if air pressure is too high\noperates…

a pressure switch on a power vented water heater\noperates the blower if air pressure is too high\noperates the blower if air pressure is too low\nprovides adequate combustion air\nsenses excess water pressure in the system\nverifies that the blower has started\nquestion 24\nwhich of the following is not a problem with water heaters?\nthe baffle or turbulator is missing on a gas or oil fired water heater\nthere is no isolating valve on the cold water inlet\nthe tank is leaking\nthere is no isolating valve on the hot water outlet\nthe hot and cold water piping are reversed

a pressure switch on a power vented water heater\noperates the blower if air pressure is too high\noperates the blower if air pressure is too low\nprovides adequate combustion air\nsenses excess water pressure in the system\nverifies that the blower has started\nquestion 24\nwhich of the following is not a problem with water heaters?\nthe baffle or turbulator is missing on a gas or oil fired water heater\nthere is no isolating valve on the cold water inlet\nthe tank is leaking\nthere is no isolating valve on the hot water outlet\nthe hot and cold water piping are reversed

Answer

Brief Explanations:

For the first question, the pressure - switch on a power - vented water heater verifies that the blower has started. It's not about operating the blower based on air pressure levels or providing combustion air or sensing water pressure. For the second question, having the hot and cold water piping reversed is not typically considered a problem with the water heater itself but rather an installation issue. The other options are problems related to the water heater's components or connections.

Answer:

First question: verifies that the blower has started Second question: the hot and cold water piping are reversed