International Building Code Provision; Initial And Seasonal Start-Up Checklist; General; Initial And Seasonal Start-Up - EVAPCO ESW Series Operation And Maintenance Instruction

International Building Code Provisions
The International Building Code (IBC) is a comprehensive set of regulations addressing the structural design and installation requirements
for building systems – including HVAC and industrial refrigeration equipment. The code provisions require that evaporative cooling
equipment and all other components permanently installed on a structure must meet the same seismic design criteria as the building.
All items attached to Evapco Closed Circuit Coolers or Evaporative Condensers must be independently reviewed and isolated to meet
applicable wind and seismic loads. This includes piping, ductwork, conduit, and 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.

Initial and Seasonal Start-Up Checklist

General

1. Verify that the overall installation reflects the requirements of the installation guidelines found in EVAPCO Bulletin 311 –
Equipment Layout Manual available at www.evapco.com.
2. Fan motor space heaters - To prevent any moisture buildup in the windings and bearings, space heaters are provided as
standard on every fan motor. These should be wired prior to operation.
3. For multi-speed fan motors, verify that 30 second or greater time delays are provided for speed changes when
switching from high to low speed. Also check to see if interlocks are provided to prevent simultaneously energizing high
and low speed, and confirm both speeds operate in the same direction.
4. Verify all safety interlocks work properly.
5. For units operating with a variable frequency drive, make certain that minimum speed requirements have been set.
Check with VFD manufacturer for recommended minimum speeds. See "Fan System - Capacity Control" section for
more information, and recommendations on locking out resonance frequencies.
6. Verify that a water treatment plan has been implemented including passivation of galvanized steel units. See "Water
Treatment" section for more details.
7. If the unit is going to sit idle for an extended period of time, follow all manufacturers' fan motor and pump instructions
for long term storage. Plastic sheets or tarps should never be used to protect a unit during storage. This practice can
trap heat inside the unit, and could potentially cause damage to plastic components. See your local EVAPCO
representative for additional information on unit storage.
BEFORE BEGINNING ANY MAINTENANCE, BE CERTAIN THAT THE POWER IS TURNED OFF
AND THE UNIT IS PROPERLY LOCKED AND TAGGED OUT!

Initial and Seasonal Start-Up

1. Clean and remove any debris, such as leaves and dirt from the air inlets.
2. Flush the cold water basin (with the strainer screens in place) to remove any sediment or dirt.
3. Remove the strainer screen, clean and reinstall.
4. Check mechanical float valve to see if it operates freely.
5. Inspect water distribution system nozzles and clean as required. Check for proper orientation.
(This is not required at initial start-up. The nozzles are clean and set at the factory).
6. Check to ensure drift eliminators are securely in place and in the proper orientation.
5