HVAC prep 2

A Pittsburgh seam is used to join metal

A parallel-type electrical circuit is one in which the

Multi-compressor systems require

a refrigeration system containing oil should never be pressurized with

a overcharge of refrigerant a cooling/refrigeration system will cause

incomplete combustion results from a lack of

The t stat terminal the indoor fan circuit on a heat pump is the ___ terminal

A drawing used to see the mounting height of a register on a wall is a

when refrigerant is added to an air conditioner

The unit for flow of electricity is the

CSST (corrugated stainless steel tubing) can

this tool is called a

when working with a power tool with 90 decibels and higher, the tech should wear safely glass &

Name of the device that is used to remove small air bubbles in the hydronic pipping system?

Working on voltage equipment ,service tech are more likely to receive electrical shock when

Hydronics is the science of

This tool is called a

When using a ladder around electrical line, the worker should

A 90-degree PVC elbow that has both a male and female connection is called a

A pulsating sound in an oil burner indicates that the

after installation the tech needs to ____ before turning on/firing the oil or gas burner

An HVAC system may be controlled by a/an

In series circuit, the total current is equal to

high voltage connected to the a low voltage sequencer coil will

This symbol represent a _____ in an electrical schematic

The formula for computing power consumption (watts) in an AC circuit is

Most 90 percent-plus-efficient natural gas furnaces use an ignition device called a/an

A CAP tube system isn't working properly. Ice built up from evap to comp whats wrong w/ system?

Frost accumulating on the evaporator coil of an air condition system is caused by

A supply plenum is mounted