SPX Cooling Technologies Marley MCW User Manual

Marley MCW Cooling Tower

Engineering Data & Speciﬁcations

Marley / MCW Cooling Tower / Table of Contents

Engineering Data

Schematic 6 Support 16 Noise Attenuator Option 18 Hoisting Info 19 Freeze Prevention 20 Water Quality 21

Specifications / Base

Base 22 Thermal Performance 22 Performance Warranty 22 Design Loading 23 Construction 23 Mechanical Equipment 23 Fill, Louvers and Drift Eliminators 24 Hot Water Distribution System 25 Casing 25 Access 25 Collection Basin 25 Warranty 25

Specifications / Options

Stainless Steel Options

Stainless Steel Collection Basin 26 All Stainless Steel Cooling Tower 26

Convenience and Safety Options

Top Access Platform 26 Ladder Extension 27 Ladder Safety Cage 27 Access Door Platform 27 Distribution System Access Platform 27

Control Options

Fan Motor Starter Control Panel 28 Vibration Limit Switch 29 Basin Heater 29 Fan Motor Variable Speed Drive 29 Marley Premium VFD System 30

Miscellaneous Options

Sound Control 32 Premium Efficiency Motor 33 Discharge Hood 33

Marley / MCW Cooling Tower

■ Air Movement Package

Forward-curved centrifugal fans are dynamically balanced and mounted on tubular steel shafts

Fans are supported by roller-bearings mounted at both ends with heavy-guage steel supports.

Spherical roller bearings are rated at an L10 life of 50,000 hours.

Fan guard / Air-inlet screens are 16 gauge galvanized steel.

TEFC Fan Motor—1.15 service factor, variable torque, and specially insulated for cooling tower duty.

The MCW Series air movement package including the structural support—guaranteed against failure for a

period of ﬁve full years. The motor is warranted separately by the motor manufacturer.

■ Water Distribution System

Pressurized spray system distributes water evenly over the ﬁll.

Low-clog polypropylene nozzles—delivers precise distribution of water over the ﬁll area.

Marley MC thermoformed PVC ﬁlm ﬁll assembled into packs for ease of removal and cleaning.

Marley XCEL drift Eliminators—limit drift losses to no more than .005% of the design L/s ﬂow rate.

■ Structure

Forced-draft, counter-ﬂow design requires considerably less plan area than crossﬂow towers typically use.

Series 300 stainless steel, 316 stainless steel or Z600 galvanized steel construction.

Factory assembled—ensures ﬁnal ﬁeld installation will be hassle-free.

Centrifugal fans and a fully-enclosed falling water area create one of the quietest cooling tower

conﬁgurations on the market.

Marley / MCW Cooling Tower

Series towers are galvanized steel,

MCW

counterflow cooling towers, designed to serve air conditioning and refrigeration systems as well as light to medium industrial process loads on clean water. The Marley MCW cooling tower is particularly suited to the urban environment, reducing noise while increasing energy efﬁciency and performance.

The specifications portion of this publication not only relates the language to use in describing an appropriate MCW cooling tower—but also deﬁnes why certain items and features are important enough to specify with the intention of insisting upon compliance by all bidders. The left hand column of pages 22 thru 31 provides appropriate text for the various speciﬁcation paragraphs, whereas the right hand column comments on the meaning of the subject matter and explains its value.

factory assembled, forced draft,

Pages 22 thru 25 indicate those paragraphs which will result in the purchase of a basic cooling tower—one that accomplishes the speciﬁed thermal performance, but which will lack many operation—and maintenance-enhancing accessories and features that are usually desired by those persons who are responsible for the continuing operation of the system of which the cooling tower is part. It will also incorporate those standard materials which testing and experience has proven to provide acceptable longevity in normal operating conditions.

Pages 26 thru 31 provide paragraphs intended to add those features, components, and materials that will customize the cooling tower to meet the user‘s requirements.

Marley / MCW Cooling Tower / Engineering Data : Schematic

INSTALLED

HEIGHT

INSTALLED

HEIGHT

ACCESS

DOOR

OUTLET

INLET

SIDE ELEVATION

ALL MODELS

AIR INLET ELEVATION

MODELS 901116B - 901117F

AIR INLET ELEVATION

MODELS 901126F - 901127J

1250

110

912

110

1824

AIR INLET ELEVATION

MODELS 901136H - 901137K

110

2736

Use this data for preliminary layouts only. Obtain current drawing from your Marley sales representative.

The Marley UPDATE web-based selection software —available at www.spxcooling.com—provides MCW Series model recommendations based on customer's specific design requirements.

Marley / MCW Cooling Tower / Engineering Data : Schematic

OVERFLOW 2"F

MAKEUP 1"M

DRAIN 2"F

PIPING CONNECTIONS

ALL MODELS

335

152

300

500

Model

note 2

901116B-1

901116C-1 20 1.5

901116D-1 23 2.2

901117D-1 26 2.2

901117F-1 31 3.7

901126F-1 45 3.7

901126H-1 50 5.5

901127H-1 57 5.5

901127J-1 62 7. 5

901136H-1 66 5.5

901136J-1 75 7. 5

9011137H-1 75 5.5

9011137J-1 85 7. 5

9011137K-1 93 11. 0

Nominal

Tons

note 3

Motor

1.1

Dimensions

C H M

2285 2555 240 65

2585 2555 240 65

2255 2555 240 80

2555 2555 240 80

2270 2555 600 10 0

2570 2855 600 10 0

Inlet / Outlet

dia

Design

Operating

Weight

733 580 336

1156 836 456

1588 1092 576

Shipping Weight

Weight/Cell

Heaviest

Section

NOTE

1 Use this bulletin for preliminary layouts only. Obtain current

drawings from your Marley sales representative. All table data is per cell.

2 Last numeral of model number indicates number of cells.

Change as appropriate for your selection.

3 Nominal tons are based upon 35°C HW, 29.5°C CW, 25.5°C

WB and .68 m selection software provides MCW model recommendations based on speciﬁc design requirements.

/hr per ton. The Marley UPDATE web-based

4 Standard overﬂow is a 2"

dia. F connection located on the side

of the collection basin. Makeup water connection is 1" connection located on the side of the collection. A 2"F drain connection is located on the side of the collection basin and two 2"F drain connections are located on the basin ﬂoor.

dia. M

Marley / MCW Cooling Tower / Engineering Data : Schematic

INSTALLED

HEIGHT

INSTALLED

HEIGHT

ACCESS

DOOR

OUTLET

INLET

SIDE ELEVATION

ALL MODELS

AIR INLET ELEVATION

MODELS 901146K - 901147L

1250

110

3648

AIR INLET ELEVATION

MODELS 901156K - 901157N

110

5472

Use this data for preliminary layouts only. Obtain current drawing from your Marley sales representative.

The Marley UPDATE web-based selection software —available at www.spxcooling.com—provides MCW Series model recommendations based on customer's specific design requirements.

Marley / MCW Cooling Tower / Engineering Data : Schematic

102

OVERFLOW 2"F

MAKEUP 1"M

DRAIN 2"F

PIPING CONNECTIONS

ALL MODELS

350

500

170

240

300

Model

note 2

901146K-1

901147K-1 11 7 5.5 x 2

901147L-1 125 7.5 x 2

901156K-1 134 5.5 x 2

901156L-1 150 7.5 x 2

901157L-1 170 7.5 x 2

901157N-1 187 11 x 2

Nominal

Tons

note 3

Motor

5.5 x 2

Dimensions

C H

2285 2555 150

2585 2855 150

2300 2555 150

2600 2855 150

Inlet / Outlet

dia

Design

Operating

Weight

2006 1351 696

2586 1866 937

Shipping Weight

Weight/Cell

Heaviest

Section

NOTE

1 Use this bulletin for preliminary layouts only. Obtain current

drawings from your Marley sales representative. All table data is per cell.

2 Last numeral of model number indicates number of cells.

Change as appropriate for your selection.

3 Nominal tons are based upon 35°C HW, 29.5°C CW, 25.5°C

WB and .68 m selection software provides MCW model recommendations based on speciﬁc design requirements.

/hr per ton. The Marley UPDATE web-based

4 Standard overﬂow is a 2"

dia. F connection located on the side

of the collection basin. Makeup water connection is 1" connection located on the side of the collection. A 2"F drain connection is located on the side of the collection basin and four 2"F drain connections are located on the basin ﬂoor.

dia. M

Marley / MCW Cooling Tower / Engineering Data : Schematic

INSTALLED

HEIGHT

INSTALLED

HEIGHT

ACCESS

DOOR

OUTLET

INLET

SIDE ELEVATION

ALL MODELS

AIR INLET ELEVATION

MODELS 901546M - 901549P

AIR INLET ELEVATION

MODELS 901556N - 901558R

2400

115 115

3550

5380

115

Marley / MCW Cooling Tower / Engineering Data : Schematic

214

OVERFLOW 3"F

MAKEUP

1"M

DRAIN 2"F

PIPING CONNECTIONS

ALL MODELS

440

858

255

140

1080

130

470

Model

note 2

901546M-1

901546N-1 225 22

901547M-1 239 18.5

901547N-1 253 22

901548N-1 270 22

901548P-1 298 30

901549P-1 309 30

901556N-1 286 22

901556P-1 315 30

901556Q-1 336 37

901557Q-1 379 37

901557R-1 400 44

901558R-1 429 44

Nominal

Tons

note 3

Motor

18.5

Dimensions

C H

3770 4070 200

4200 4500 200

4510 4810 200

3595 3895 200

3770 4070 200

4200 4500 200

Inlet / Outlet

dia

Design

Operating

Weight

4271 3084 1820

5931 4118 2417

Shipping Weight

Weight/Cell

Heaviest

Section

NOTE

1 Use this bulletin for preliminary layouts only. Obtain current

drawings from your Marley sales representative. All table data is per cell.

2 Last numeral of model number indicates number of cells.

Change as appropriate for your selection.

3 Nominal tons are based upon 35°C HW, 29.5°C CW, 25.5°C

WB and .68 m

/hr per ton. The Marley UPDATE web-based

selection software provides MCW model recommendations based on speciﬁc design requirements.

4 Standard overﬂow is a 3"

dia. F connection located on the side

of the collection basin. Makeup water connection is 1" connection located on the side of the collection. A 2"F drain connection is located on the side of the collection basin.

dia. M

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