Lochinvar SIT Installation Manual

18" minimum width

guideline (for H20)

NOTE:

Schier Products SOS/SIT
Oil/Sand Separator

Concrete slab

Unit must have 1/2"
cover for H20 loading

8" Min. thickness

guideline (for H20)

Crushed aggregate
#7 backfill

SIT Series

SOS Series

Operating water level

BACKFILL DETAIL

(INTERIOR OR EXTERIOR)

INSTALLATION

Always install and vent Oil Separator according to manufacturer's recommendations,
specifier requirements and state or local codes.

Inspect unit for any defects that may of occurred during shipping and that it meets

•
specifier requirements.
Install as close to fixture(s) a possible. Ensure unit has enough room above for proper

•
cleaning and maintenance whether the unit is installed above or below grade.
Separators must be placed on flat, solid surface allowing support of bottom. Separator

•
must be supported to avoid stress of fitting connections.
Connect all piping to unit and inspect all piping for leaks. All piping to be installed

•
per local code.
Adjust oil draw-off to correct position (per Oil Draw-off detail).

•
If unit is below grade see backfill detail above for guidelines on concrete pad and

•
appropriate backfill material.
System is now ready for use.

•

Adjustable gravity
draw-off tube

Slip-nut

Static water level

Oil discharge to
collection tank

Exterior wall/dividing
wall of separator

OIL DRAW-OFF

Schier Oil Separators are supplied with 1 1/2" draw-off unit consisting of an
adjustable draw-off tube and slip-nut. In order for the Oil Separator to work
properly, the oil draw-off must be adjusted to meet the correct operating
height for the flow of the unit. The oil draw-off unit leads excess oil into an
oil drainage line and collection tank, where it can be taken care of properly.

Once the Oil Separator is installed, an operating water level must be established.
Remove covers and run water through separator at maximum flow rate. Move
adjustable draw-off tube between 1/4" to 1/2" above operating water line. If
discharged oil contains water, raise adjustable tube until only oil is being removed.
Draw-off setting must be checked periodically. If draw-off tube is properly set,
water will not draw off with oil

VENTING:

Vent connections are located directly on separator wall. Schier Oil Separators must
be vented in order to carry volatile gases away from the Separator. Vent inlet/outlet
piping and body according to local plumbing codes.

THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF
REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF

PROPRIETARY AND CONFIDENTIAL

SCHIER PRODUCTS

SCHIER PRODUCTS

. ANY

IS PROHIBITED.

DESCRIPTION:

INSTALLATION GUIDE FOR SIT/SOS
STEEL OIL/SAND SEPARATORS

PART NUMBER:

DWG BY:

TEU

SIT/SOS

DATE:

11/25/09

NOTES:

Schier oil separators are rated and manufactured with an internal flow control system already in
place. They do not require an external flow control system.

Schier oil separators are not to be installed in any other manner except as shown. Consult local
codes for separate trapping requirements, cleanout locations and additional installation instructions

Schier Products

2500 South 170th Street

New Berlin, Wisconsin 53151

Tel: [phone]

Fax: [phone]

www.schierproducts.com

MATL:

Made in the U.S.A

REV: