Optional Motor & Gear Box Davit Installation; Mounting Fan Screens - EVAPCO ATC-E Rigging And Assembly Instructions

ATC-E, ATC-ES, ATWB, eco-ATWB and eco-ATWB-E Evaporative Condensers and Closed Circuit Coolers
Optional Motor & Gear Box Davit Installation
Motor davits, also known as jib-booms, are offered by EVAPCO as an optional accessory to facilitate removal of the motor, fan
assembly or gear box. The assembly consists of a davit and a mounting base that is to be attached to the side of the unit next to the
access door, as shown below in Figure 20. Both these items will ship loose in the unit's basin. On multi-cell units, there will be
provisions to install a mounting channel on each cell. Use the following procedure to install the mounting channel:
1. Align the mounting channel with 3/8" (10mm) bolts and flat washers to the factory installed mounting brackets
2. Use 3/8" (10mm) flat washers, lock washers and nuts to secure the mounting channel to the bracket, as shown in Figure 21.
ACCESS
M
DOOR
MOUNTING CHANNEL
(SHIPS LOOSE)
Figure 20 - Dual-Point Davit Arrangement

Mounting Fan Screens

On 10' (3m) wide units and larger, a conical fan screen support is used in order to prevent the fan screen from sinking down into
the fan cylinder. In some cases, shipping height restrictions may require the fan screen support(s) and fan screen(s) to ship loose
for installation in the field. Please follow the below instructions to install these components on the fan cylinder(s).
1. Set the fan screen support across the top of the fan cylinder as shown in Figure 22.
2. Place both halves of the fan screen on top of the fan screen support. Each half will be tagged to match markings on the
cylinder. Align the eyelets of the fan screen with the holes on the cylinder perimeter.
3. Join the two screen halves with "U" bolts, as shown in Figure 23.
4. At each hole, attach the fan screen to the fan cylinder as shown in Figure 22. At the four points where the fan screen support
meets the cylinder, bolt the support to the cylinder together with the fan screen.
MOUNTING
BRACKET
MOUNTING
BRACKET
MOUNTING
BRACKET
17
MOUNTING BRACKET
FLAT WASHER
FLAT WASHER
BOLT
LOCK WASHER
NUT
MOUNTING CHANNEL
Figure 21 - Mounting Channel Installation