Daikin EWAT290B-SRA1 [56/62] Installations notes

56/62

INSTALLATIONS NOTES

Warning Installation and maintenance of the unit must be performed only by qualified personnel who have

knowledge with local codes and regulations and experience with this type of equipment. unit installation in places

that could be considered dangerous for maintenance operations must be avoided.

Location The units are produced for outdoor installation on roofs, floors or below ground level on condition that

the area is free from obstacles for the passage of the condenser air. The unit should be positioned on solid

foundations and perfectly leveled; in the case of installation on roofs or floors, it may be advisable to arrange

the use of suitable weight distribution beams. When the units are installed on the ground, a concrete base at

least 250 mm wider and longer than the unit’s footprint should be laid. Furthermore, this base should withstand

the unit weight mentioned in the technical data table.

Space requirements The units are air-cooled, then it is important to respect the minimum distances

which guarantee the best ventilation of the condenser coils. Limitations of space reducing the air flow could

cause significant reductions in cooling capacity and an increase in electricity consumption.

To determinate unit placement, careful consideration must be given to assure a sufficient air flow across the

condenser heat transfer surface. Two conditions must be avoided to achieve the best performance: warm air

recirculation and coil starvation. Both these conditions cause an increase of condensing pressures that results in

reductions in unit efficiency and capacity. Moreover, the unique microprocessor can evaluate the operating

environment of the air-cooled chiller and is capable to optimize performances staying on-line during abnormal

conditions.

Each side of the unit must be accessible after installation for periodic service. The following pictures shows you

minimum recommended clearance requirements.

Single V

Multi V

1100 mm

2200 mm

1100 mm

1500 mm

For single chiller installation in proximity of a wall the following indications are recommended:

if h < Hc → L must at least 3 m for multi-V layout units or 1.8m for single-V layout units

if h ≥ Hc or L lower than recommended contact Daikin representative to evaluate possible arrangements

In case two chillers installed side by side in free filed, the minimum distance recommended between the chillers

is indicated in the below picture