Question 1

Most water-cooling towers can cool the water that supplies the condenser to a temperature within ____________________°F of the wet-bulb temperature of the ambient air.

Accepted Answer

The answer of Most water-cooling towers can cool the water...

Question 2

In a 2-ton capillary tube system, the unit does not develop full capacity. Head pressure is low and suction pressure is high. What is the problem?

Accepted Answer

The answer of In a 2-ton capillary tube system, the...

Question 3

In a 2-ton capillary tube system, the unit does not develop full capacity. Head pressure is high, suction pressure is high, and there is no superheat. What is the problem?

Accepted Answer

The answer of In a 2-ton capillary tube system, the...

Question 4

In a 2-ton capillary tube system, the unit does not develop full capacity. Head pressure is low and suction pressure is low. What is the problem?

Accepted Answer

The answer of In a 2-ton capillary tube system, the...

Question 5

Why is it that many products that require medium-temperature refrigeration will not freeze at 30°F?

Accepted Answer

The answer of Why is it that many products that...

Question 6

In a 2-ton TX valve system, the unit does not develop full capacity. Head pressure is high, suction pressure is slightly above normal, superheat is normal, and subcooling is above normal. What is the problem?

Accepted Answer

The answer of In a 2-ton TX valve system, the...

Question 7

In a 2-ton TX valve system, the unit does not develop full capacity. Head pressure is high, suction pressure is slightly above normal, and subcooling is below normal. What is the problem?

Accepted Answer

The answer of In a 2-ton TX valve system, the...

Question 8

For each 12,000 Btu/h capacity, a wastewater-cooled condensing unit uses approximately ____________________ GPM.

Accepted Answer

The answer of For each 12,000 Btu/h capacity, a wastewater-cooled...

Question 9

If a system has a(n) ___ for a metering device, the device will try to maintain evaporator superheat even with an excessive overcharge.

Accepted Answer

The answer of If a system has a(n) ___ for...

Question 10

Will the gauge readings be high or low with a system using a capillary tube that has a low refrigerant charge?

Accepted Answer

The answer of Will the gauge readings be high or...

Question 11

For each 12,000 Btu/h capacity, a water-cooled condensing unit and cooling tower combination will circulate approximately ____________________ GPM through the condenser.

Accepted Answer

The answer of For each 12,000 Btu/h capacity, a water-cooled...

Question 12

The water quality required to maintain the water level in the sump is called ____________________.

Accepted Answer

The answer of The water quality required to maintain the...

Question 13

A low refrigerant charge will cause a(n) ____________________ suction pressure, which will increase the compression ratio.

Accepted Answer

The answer of A low refrigerant charge will cause a(n)...

Question 14

If the evaporator and compressor are starved of refrigerant, the condenser will also be starved.

Accepted Answer

This is because the refrigerant is a closed loop and if there is not enough refrigerant circulating in the evaporator and compressor, there will not be enough to flow through the condenser.

Quiz 29: Troubleshooting and Typical Operating Conditions for Commercial Refrigeration

Most water-cooling towers can cool the water that supplies the condenser to a temperature within ____________________°F of the wet-bulb temperature of the ambient air.

In a 2-ton capillary tube system, the unit does not develop full capacity. Head pressure is low and suction pressure is high. What is the problem?

In a 2-ton capillary tube system, the unit does not develop full capacity. Head pressure is high, suction pressure is high, and there is no superheat. What is the problem?

In a 2-ton capillary tube system, the unit does not develop full capacity. Head pressure is low and suction pressure is low. What is the problem?

Why is it that many products that require medium-temperature refrigeration will not freeze at 30°F?

In a 2-ton TX valve system, the unit does not develop full capacity. Head pressure is high, suction pressure is slightly above normal, superheat is normal, and subcooling is above normal. What is the problem?

In a 2-ton TX valve system, the unit does not develop full capacity. Head pressure is high, suction pressure is slightly above normal, and subcooling is below normal. What is the problem?

For each 12,000 Btu/h capacity, a wastewater-cooled condensing unit uses approximately ____________________ GPM.

If a system has a(n) ___ for a metering device, the device will try to maintain evaporator superheat even with an excessive overcharge.

Will the gauge readings be high or low with a system using a capillary tube that has a low refrigerant charge?

For each 12,000 Btu/h capacity, a water-cooled condensing unit and cooling tower combination will circulate approximately ____________________ GPM through the condenser.

The water quality required to maintain the water level in the sump is called ____________________.

A low refrigerant charge will cause a(n) ____________________ suction pressure, which will increase the compression ratio.

If the evaporator and compressor are starved of refrigerant, the condenser will also be starved.