Engineer's specification, Engineer’s specification – Culligan Model 900 User Manual

Page 9

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CUSTOMER:

AUTOMATIC WATER SOFTENER

HI-FLO

®

52

DATE:

1.0

SCOPE

1.1

Provide as indicated a vertical pressure type water softener system complete with pressure vessel, softening
resin, control valve, brine maker and electronic controller. The system will be of an approved design as
fabricated by a manufacturer regularly engaged in the production of water treatment equipment. All equipment
and material will be supplied in compliance with the specifications as intended for a complete and operational
system.

¨ (Open Bidding Arrangement)

1.2

Qualified manufacturers of water treatment equipment of the type specified are Culligan International Company
or the Engineer’s approved equal.

¨ (Closed Bidding Arrangement)

1.2

Qualified manufacturers of water softener equipment must be engaged in the manufacture of this equipment for
a period of not less than fifteen (15) years. Acceptable manufacturers are Culligan International Company or the
Engineer’s approved equal.

2.0

GENERAL DESCRIPTION

¨ (Selection for statement of specific model)

2.1

The system specifications are based on Culligan International model ________________________________.

The purpose of the Culligan International Series Hi-Flo

®

52 automatic water softener will be to remove mineral

hardness from a known water supply to a level not to exceed ________ mg/l, as determined by an accepted
ASTM or EDTA test method, when the system is operated at ________ gpm and in accordance with the
operating instructions. The system will be capable of supplying ________ gallons of softened water between
regenerations based on the influent water analysis listed in Section 3.1 of this equipment specification.

The systems performance is rated at a design flow rate of ______ gpm with a rated pressure drop of ______
psi, and will be capable of a peak flow rate of ______ gpm for sustained periods of 90 minutes with a pressure
drop of ______ psi.

There shall be a quantity of ________ of the above described systems.

¨ (Selection for general statement)

2.1

The system, in compliance with the equipment specification, is described as an automatic _______________
water softener system meeting the performance and design data requirements as hereinafter specified.

3.0

PERFORMANCE AND DESIGN DATA

3.1

INFLUENT WATER ANALYSIS

Calcium, Ca:

Magnesium, Mg:

Total Hardness:

(Constituents above are expressed in ppm or mg/l as CaCO

3

or as otherwise specified.)

Iron, Fe:

Manganese, Mn:

Total Dissolved Solids, TDS:
(Constituents above are expressed in ppm or mg/l.)

Turbidity, NTU:

Color:

pH:

ENGINEER’S SPECIFICATION

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