Instruction Manual

ManualsBrandsClimaCool ManualsEquipmentFLEX SERIES 30, 50, 65

Water Flow Rates

It is imperative that minimum and maximum water ﬂ ow

rates are not exceeded. Minimum and maximum water ﬂ ow

rates are deﬁ ned in the Physical Data tables of this manual.

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conﬁ rm ﬂ ow in the chilled water and condenser circuits.

Chilled Water Temperature Limits

ClimaCool

FLEX Series FLEXFLEX Series modules are designed for a leav-

5otF˚04morfegnarerutarepmetretawgni 5˚F. All cata-

loged modules can operate safely in this range without the

need of special controls or glycol additives. Leaving water

temperatures below 40˚F can result in evaporator suction

temperatures below the freezing point of water. Therefore,

we require a glycol solution additive that will protect the

evaporator from freeze ups at lower operating suction tem-

peratures. The full range of leaving chiller ﬂ uid using glycol

is 20˚F to 55˚F on the Flex Series.

Condenser Water Temperature

The condensers are designed to operate most efﬁ ciently at

lower entering water temperatures for lower power con-

sumption. Operating lower than a recommended 60˚F will

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The full range of entering condenser water is 60˚F to 105˚F.

Water Quality Parameters

Water Piping Practices

As with any water system, it is important that the system be

clean. If care is taken during installation, the possibility of

dirt related problems are avoided in future operation of the

chiller. The pipe work installer must remove weld scale, rust

and contamination during pipe work fabrication.

There are certain necessary components that should always

be installed in both the chilled water and condenser water

systems (see Water Piping Conﬁ gurations on page 24 in this

manual.) Isolation valves are required in the position shown

to isolate the chiller for maintenance and also to allow iso-

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Refer to the ClimaCool

modular chiller water piping

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are made to the chiller, all external water piping must be

thoroughly ﬂ ushed. Sufﬁ cient insulation should be installed

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Chilled water volume can be accommodated with the

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ClimaCool

Strainer

ClimaCool

requires quality strainers with a minimum

of 60 mesh strainer screen to protect the chilled and con-

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Strainer

Package (listed on page 8, Optional Features) meets all

requirements and offers the convenience of an optional

automatic ﬂ ush timer and a high pressure alarm. "Y" and

Basket Strainers are also available (listed on page 9, Optional

Features). Installation of a strainer will:

• Increase efﬁ ciency

• Reduce abrasion and wear

• Ensure longer equipment life

• Provide greater return on your investment

• Filtration enhances the action of your water

treatment program

For more information on the ClimaCool

strainer, consult

looCamilCdezirohtualacolruoy

representative.

Table 1 - Water Quality Parameters

WATER CONTAINING CONCENTRATION

Sulphate Less Than 200 ppm

pH 7.0 – 9.0

Chlorides Less Than 200 ppm

Nitrate Less Than 100 ppm

Iron Less Than 4.5 mg/l

Ammonia Less Than 2.0 mg/l

Manganese Less Than 0.1 mg/l

Dissolved Solids Less Than 100 0 mg/l

CaCO3 Hardness 30 – 500 ppm

CaCO3 Alkalinity 30 – 500 ppm

ClimaCool Application Parameters

Proper water treatment is a specialized industry. We recom-

mend consulting an expert in this field to analyze the water

for compliance with the water quality parameters listed in

Table 1 below. The material used in the ClimaCool

chiller

exposed to the water are type 316 stainless steel, pure

copper, and carbon steel. Other materials may exist external

to the ClimaCool

chiller. It is the users responsibility to

ensure these materials are compatible with the treated water.

Failure to provide proper water quality will void the

ClimaCool

module's warranty.

It is further recommended to seek an experts advice to

specify the appropriate water treatment required. Typical

additives to hydronic systems include rust inhibitors, scaling

preventative, antimicrobial growth agents, and algae preven-

tatives. Anti-freeze solutions may also be required to lower the

freezing point, based on the application.

Heavily-Contaminated Water

In such instances whereby the particulates in the water are

excessive it is recommended to install an intermediate plate

& frame heat exchanger to isolate the ClimaCool

chiller

from the building water system.