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Question 1

What is the first step in zeroing a pressure gauge?

Answer 1

Fan off

This ensures that the gauge is not affected by any pressure from the fan.

Question 2

What position should the gauge be in while zeroing?

Answer 2

Vertical

A vertical position helps in getting an accurate zero reading.

Question 3

What should be done with the lines before zeroing the pressure gauge?

Answer 3

Disconnect lines

This prevents any pressure from affecting the zeroing process.

Question 4

What is adjusted to zero the pressure gauge?

Answer 4

Zeroing screw

Turning the zeroing screw calibrates the gauge to read zero.

Question 5

What is the first step in fan care?

Answer 5

Always hook Case Drain line to sump first

This ensures proper drainage and prevents system issues.

Question 6

How should the SCV be set to shut off the fan?

Answer 6

Put SCV into ‘FLOAT’

This setting helps to safely stop the fan without causing damage.

Question 7

What could happen if the fan is shut off in ‘neutral’?

Answer 7

Repeated shutdowns

Shutting off in ‘neutral’ may lead to system failures.

Question 8

What maintenance task should be performed on the fan screen?

Answer 8

Clean debris off of the fan screen

Keeping the fan screen clean is essential for optimal fan performance.