Holman pro 1248 - Water Hammer Saver; Pressure Build

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The display will show:

Press the

or the

buttons to increment or

decrement the program number to apply the pressure

build time too.

NOTE: each program can have its own pressure build time programmed.

To alter the pressure build time press the

button. The delay time is set to “OFF”

and will now ﬂash for the selected program number.

Use the

or the

buttons to increment or decrement the delay time

seconds.

This value can be anything from OFF to 99 secs.

Water Hammer Saver

The water hammer system is used to stop fast valve closures causing water hammer

and damaging pumps and pipe work.

This facility allows the overlap of valves for a speciﬁed time between valve changes.

For example the system is changing from valve one to valve two.

1. Valve one is open 4. When time elapses valve one closes

2. Valve two opens 5. Valve two now runs for its speciﬁed run time.

3. Time delay counts down

To access the water hammer feature, turn the dial to the “Set Auxiliaries” position.

Then press the

button till the following display appears.

Program No 1 will be ﬂashing. The display will show:

Press the

or the

buttons to increment or

decrement the program number to apply the water

hammer delay time.

NOTE: Each program can have its own delay time programmed.

To alter the water hammer delay time press the

button. The delay time is set to

“OFF” and will now ﬂash for the selected program number.

Use the

or the

buttons to increment or decrement the delay time

seconds. This value can be anything from OFF to 99 secs.

SPECIAL FUNCTIONS

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