SHI System Maintenance & Troubleshooting

Question 1

Why is periodic inspection important in solar thermal systems?

Accepted Answer

To identify and address system issues early

Answer

To improve collector design

Answer

To reduce water temperature

Answer

To increase installation cost

Question 2

What does a drop in system pressure typically indicate?

Accepted Answer

Leak or air in the system

Answer

Improved efficiency

Answer

Better fluid flow

Answer

Higher fluid temperature

Question 3

What maintenance should be done annually?

Accepted Answer

Check key system components and fluid

Answer

Replace collectors

Answer

Disconnect system

Answer

Paint mounting brackets

Question 4

Why might a pump fail to circulate fluid?

Accepted Answer

Clogged lines or pump malfunction

Answer

Excess sunlight

Answer

High ambient temperature

Answer

Thermostat setting

Question 5

What is the purpose of flushing the system?

Accepted Answer

To clear buildup and sediment

Answer

To increase noise

Answer

To fill the tank

Answer

To reduce sunlight exposure

Question 6

How can an air lock in the system be resolved?

Accepted Answer

Using an air vent to bleed the system

Answer

Increasing fluid temperature

Answer

Insulating the tank

Answer

Sealing the collector

Question 7

What could cloudy fluid in the system indicate?

Accepted Answer

Fluid degradation or contamination

Answer

Proper chemical balance

Answer

Better solar absorption

Answer

High pressure

Question 8

Why should collector glazing be cleaned regularly?

Accepted Answer

To maintain high solar gain

Answer

To change the system temperature

Answer

To enhance heat retention

Answer

To prevent system expansion

Question 9

What is a common symptom of a malfunctioning controller?

Accepted Answer

No system response or incorrect data

Answer

Water leaks

Answer

Increased insulation

Answer

Low water volume