Pressure Governor

Question 1

The PRO-S will operate in one of ____ mode, Pressure or RPM.

Answer 1

2

Question 2

When in pressure mode, discharge is monitored and PSI changes are limited to how many PSI?

Answer 2

30

Question 3

The Fire Research PRO-S pressure will maintain a steady pump discharge pressure by controlling the _______ or maintain a selected engine RPM.

Answer 3

Engine speed

Question 4

While in Pressure Mode, constant _____ will be maintained.

Answer 4

Discharge pressure

Question 5

What color is the “pre-set” button?

Answer 5

Green

Question 6

What color is the “idle” button?

Answer 6

RED

Question 7

The ____ RPM or Pressure LED is on to indicate operation in the RPM or Pressure mode.

Answer 7

Green

Question 8

What color is the Pressure Governor “increase” and “decrease” button for pressure or rpm?

Answer 8

Yellow

Question 9

When switching the water supply source from tank to hydrant, draft to hydrant, or draft to relay, water flow through the pump can become turbulent and the positive pressure from these sources may generate a sudden pressure surge. It is recommended that the PRO-S be set in _____ mode before changing the water supply source.

Answer 9

RPM

Question 10

On power, the PRO-S will be in the _____ mode of operation

Answer 10

Pressure

Question 11

The minimum pump discharge PSI must be greater than ____ PSI for the PRO-S to take control.

Answer 11

15

Question 12

When pressing the increase/decrease button momentary, increase/decrease by how many PSI?

Answer 12

1`

Question 13

RPM Mode: press and hold the button for more than ___ seconds and the RPM setting will change by ____ RPM TWICE and then by ____ RPM until the button is released.

Answer 13

2 seconds
50
100

Question 14

PSI Mode: press and hold the button for more than ___ seconds and the pressure setting will change by ___ PSI TWICE and then by ____ P SI until the button is released.

Answer 14

2 seconds
5 psi
10 psi

Question 15

When the PRO-S setting display shows a value, press and hold the mode button for ___ seconds and PRO-S changes modes.

Answer 15

3

Question 16

When switching between RPM and Pressure, pressure and RPM is limited to what increase?

Answer 16

None

Question 17

If the PSI drops below 45 but stays above 15 the PRO-S will go into a prime cycle and set at?

Answer 17

1,100 RPM

Question 18

In order to pump over 300 psi, the Pressor Governor must be operated in what mode?

Answer 18

Pressure

Question 19

No or Low Water Supply: If the discharge pressure drops below 45 PSI but stays above 15 PSI the PRO-S will go into a prime cycle.
It will set the engine RPM to 1,100 RPM. If the pressure does not rise above ___ psi in ___ seconds, the PRO-S will set the engine at Idle RPM.

Answer 19

45 psi in 7 seconds

Question 20

When setting Program Preset Value the SETTING display must show ___ before changing the preset.

Answer 20

Idle

Question 21

As the discharge pressure approaches this maximum surge PSI, the PRO-S will automatically lower the RPM to prevent a high-pressure surge.
The RPM LED will _____ as the PRO-S sets a lower RPM

Answer 21

Blink

Question 22

When changing from pressure mode to RPM mode, RPM setting will be set to ______?

Answer 22

RPM pump was operating at in pressure mode

Question 23

In order to pump pressures over _____ psi, the governor must be operated in the RPM mode.

Answer 23

300 psi

Question 24

What year of engines have the Pressure Governor?

Answer 24

03-05’

Question 25

What year has the Waterous Relief Valve?

Answer 25

07’ to present