RAMVAC OWL, Руководство пользователя и инструкции по установке

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Page 23 SOF_7.2.3-02-152
Effective date: 30-May-08
OWL User Gude
Overhead Piping Adjustments
In order for the Vacuum Stabilizer Control to work properly, the correct
adjustment must be set on the:
1. Power Unit’s Vacuum Controller
2. Vacuum Pressure Switch
The factory settings are correct and should not be changed for installations with:
1. Below grade piping with a “Maximum Lift Height” to the separating tank
of 6.5 feet or less.
2. Overhead piping with a “Maximum Lift Height” of 6.5 feet or less.
What’s “Maximum Lift Height”?
It’s the greatest vertical distance water must travel uphill in the vacuum system.
To determine “Maximum Lift Height,” measure the greatest distance water must travel uphill from
the lowest point to the highest point in the system.
Be sure to check the height of all piping and hoses in the mechanical room and all treatment rooms.
For below grade piping with a lift height to the Separating Tank greater than 6.5 feet, or
overhead piping with a lift height greater than 6.5 feet…
… the following adjustments must be made:
Adjust the Vacuum Controller:
1. Measure the maximum lift height
2. Adjust vacuum controllers to correspond with “Maximum
Lift Height” as shown in the chart to the right.
3. See “Adjusting the Vacuum Controller and Adjusting the
Vacuum Pressure Switch,” on previous page.
Warning: Do not exceed motor full load amperes. Please contact
RAMVAC if you are at all uncertain about this adjustment.
Maximum Lift Height Vacuum Controller
Settings
7 feet 7.5” Hg
8 feet 8.3” Hg
9 feet 9.2” Hg
10 feet 10.2” Hg
11 feet 11.0” Hg
12 feet 12.0” Hg
Note:
Adjustments to this page can only be
made to Pressure Switch shown below.
Contact RAMVAC if you do not have
a switch that looks like this.
MULTIPLE UNIT SYSTEMS