serpentines guntner gco

GCOBare coils

> > BARE CO ILS MADE TO MEASURE

US-GCO.indd 1US-GCO.indd 1 22.08.2007 08:36:5422.08.2007 08:36:54

Application Benefi ts for Contractors, Architects, Engineers and End Users

RECOMMENDATION FOR MATERIAL SELECTION

Depending on the material characteristics and the

aggressiveness of the ambient air, the right selection

of the material combination for a heat exchanger

has a strong bearing on the service life, hygiene and

operating safety.

Benefit from our long-term experience and request

our brochure “Guntner Info material combinations”.

In order to find the best solution for the material

selection, we provide a large variety of material

combinations and available piping and connection

systems.

SPECIAL CONSTRUCTION

Our experts are happy to provide advice for the

specific requirements of heat exchangers on demand

by the customer.

The high flexibility of Guntner manufacturing plants

enables the accomplishment of even the most

challenging requirements.

HIGH PROTECTION AGAINST LEAKAGES

• Approved, patented Guntner “floating coil system”

for fin types F, N + K

Through the patented “floating coil principle” the

coil can expand and contract without affecting the

refrigerant carrying core tubes. This helps to prevent

refrigerant losses due to tube fractures and prolongs

the service life of the bare coil.

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Connection diagramInstallation position / Connections

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H

F

N

Fin typesA.D. = air direction

Tube arrangement

Tube

Tube materialA.D. = air direction Diameter

Frame material Fin material CoolantConvector fluid

3/8 “∅

9.53 mm

1/2 “∅

12 mm

5/8 “∅

15 mm

C

C

Z

V / W

C

V / W

A / E / C

A / E / C

A / E

A / E / C / V / W

A / E / C

A/E/C/V/W

G / S / C

G / S / C

S

V / W / G

G / S / C

V / W / G

HFC, Water,Brine, CO2

HFC, Water, Brine, CO2

R717

NH3, R717, HFC,Water, Brine, CO2

HFC, CO2

NH3, R717, HFC,Water,

Brine, CO2

LegendA = AluminumC = CopperE = Aluminum epoxy resin coated

K

F / V / W F / A / E / GF / V / W / Gstaggered7/8 “

∅ 22 mm

in line

staggered

staggered

NH3, CO2

F = Steel, hot-dip galvanizedG = AlMg3S = Sheet steel, Steel, hot-dip galvanized

V = Stainless steel 304W = Stainless steel 316Z = Galvanized steel tubes

Technical information: Dimensions / Application / Possible material combinations



Dimensions


Standard:

x = variable dimension (2 ” / 50 mm)

customer-specific adaptation possible

What are the maximum dimensions?


Parameter Air heater Air cooler Evaporator Condenser

ApplicationRefrigerated goodsAggressive ambient air (salt, detergents, ammonia)

No Yes, which type?

Air quantity cfm

Air inlet temperature / room temperature °F

Air inlet humidity / WB temperature %

Air outlet temperature / capacity

1. Brine / water inlet temperature °F

Brine concentration %

Brine type

Evaporation temperature °F

Superheating temperature °F

Condensing temperature+ Subcooling

Hot gas temperature

Recirculated rate

Refrigerant

1. Lmax max. installation length (unit inst.) inchmm

L for duct installation (length of frame) inchmm

2. H installation height (unit installation) inchmm

Soldered connection

Threaded connection

Flanged connection

max. pressure drop of air in coil in H2O

2. Brine / water outlet temperature °F

3. Brine / water quantity / Capacity

Max. pressure drop Brine / Water psi

3. T installation depth inchmm

H for duct installation (height of frame) inchmm

Installation position / Connections horizontal vertical AD (air direction) to the right vertical AD (air direction) to the left

Max. Dimensions

Check-list for inquiriesPlease provide us with the following data to size your heat exchanger



Construction GCO


PRESSURE TEST

Heat exchangers for water/brine operation will be

tested with 250 psig.

For all other heat exchangers the test pressure is:

250, 500 or 725 psig.

CONNECTIONS

– Soldered connection / welded flanges

– Thread

– Flange acc. to ASTM A182 / ANSI B16.5

ACCESSORIES AND SPECIAL CONSTRUCTION

– Droplet separator

– Drip tray

– Defrosting (electrical, hot gas)

– Cover and bottom sheet

• squared, or smooth

• cross braced

• with drain hole

– Painted casing

– Breather / drain vent.

– Variable fin pitch


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…keep(s) your quality.


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