EVAPCO ESW4 Rigging And Assembly Instructions Download Page 9

9

ESW4 Closed Circuit Coolers

Mounting Fan Screens

12’ (3.6m) and 14’ (4.2m) wide units will be shipped with the fan screens in the basin. Under these circumstances use the following

procedures to mount the fan screen on the discharge cylinder.

WARNING: DO NOT WALK ON THE FAN SCREENS 

AT ANY TIME!

1. Lay both halves of the fan screen on the ground. Join the

two screen halves with wire clips (Figure 11). There should

be 4 wire clips on each side of the fan screen for 12’

(3.6m) and 14’ (4.2m) wide units. Space the wire clips

evenly across the radius of the fan screen as shown in

Figure 12.

2. The fan screen is supported from underneath by an “X”

shaped support frame. Set the support frame across the

top of the discharge cylinder (See Figure 13), and fasten to

cylinder with 3/8” (10mm) bolts.

3. Place the fan screen on top of the support frame and

discharge cylinder. Each half will be tagged to match

markings on the cylinder. Align the eyelets of the fan

screen with the holes on the perimeter of the discharge

cylinder.

4. At each hole, attach the fan screen to the discharge

cylinder as shown in Figure 14.

5/8" (16mm) FLATWASHER

1/2" (13mm) BOLT

1/2" (13mm) FLATWASHER

FAN SCREEN

1/2" (13mm) LOCKWASHER

1/2" (13mm) HEX NUT

Figure 12

– Wire Clip Spacing

WIRE

CLIPS

FAN SCREEN

SUPPORT

FAN

CYLINDER

Figure 14

– Attaching Fan Screen to Cylinder

Figure 11 

– Wire Clip Arrangement

U-BOLT

ASSEMBLY

Figure 13

– Support Frame Installation

Summary of Contents for ESW4

Page 1: ...Bryan TX USA 979 778 0095 p rvs rvscorp com EvapTech Inc A wholly owned subsidiary of EVAPCO Inc Edwardsville KS USA 913 322 5165 p marketing evaptech com Tower Components Inc A wholly owned subsidiar...

Page 2: ...electrical connections These items must be flexibly attached to the Evapco unit so as not to transmit additional loads to the equipment as a result of seismic or wind forces Structural Steel Support E...

Page 3: ...e strain on the lifting devices See Table 2 for the minimum H dimension Bolt the bottom section to the steel support before rigging the top section of the unit The unit lifting devices should not be u...

Page 4: ...the supporting steel and bolted in place the top flanges should be wiped down to remove any dirt or moisture Sealer tape should be placed over the mounting hole centerline on the side flanges along th...

Page 5: ...r exists and for final positioning of the section For extended lifts safety slings should be provided under the section as described on page 6 2 OVERLAPPING LAYERS OF SEALER TAPE ON THE ENDS 1 LAYER O...

Page 6: ...s to assure proper alignment lower the top section down onto the bottom section Place nuts and bolts in all four corner bolt holes Then continue to install the rest of the nuts and bolts working from...

Page 7: ...section separate from the casing section the center of gravity of the fan section is heavily biased towards the location of the fan motor and major drive components In order to avoid lifting the fan...

Page 8: ...match markings on each section i e A1 of bottom section should match up with A1 of top section Lower the upper section to within several inches of the bottom section making sure the two sections do no...

Page 9: ...s supported from underneath by an X shaped support frame Set the support frame across the top of the discharge cylinder See Figure 13 and fasten to cylinder with 3 8 10mm bolts 3 Place the fan screen...

Page 10: ...it for belt installation 7 Install Powerband belt K Figure 15 around fan sheave and motor sheave Tighten belt by adjusting nuts on J bolts Do not over tighten the belts The center of the belt should d...

Page 11: ...a heater a low water cutout switch and a thermostat The heater is installed at the factory The low water cutout switch is shipped loose in the rigging box and will need to be screwed into the screw ti...

Page 12: ...ing bolts A from the ladder mounting channels B on pan and casing sections 2 Loosen but do not remove the ladder bracket and assembly bolts C 3 Slide the ladder bracket assembly D over the ladder moun...

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Page 14: ...installed on the discharge side of the pump and connected to a convenient drain In either case the bleed off valve should be fully open Strainer Check the strainers if applicable in the basin section...

Page 15: ...tional arrows are placed on the side of the fan cylinder Maintenance Once the installation is complete and the unit is turned on it is important that it be properly maintained Maintenance is not diffi...

Page 16: ...Water Level Control Probes Mounted in PVC standpipe Electronic Water Level Control PVC Standpipe Strapped Inside Unit Basin Shipping Location is Unit and Accessory Dependent External Service Platform...

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