Daikin EWAH170TZ-SLB1 [86/102] Dimensional drawing

85/100

DIMENSIONAL DRAWING

Water piping

The water system must have:

Anti-vibration joint in order to reduce transmission of vibrations to the structures.

Isolating valves to isolate the unit from the water system during maintenance.

Flow switch.

Manual or automatic air venting device at the system’s highest point.; drain device at the system’s lowest

point.

A suitable device that can maintain the water system under pressure (expansion tank, etc.).

Water temperature and pressure indicators to assist the operator during service and maintenance.

A filter or device that can remove particles from the fluid. The installation of the filter is mandatory. The use

of a filter extends the life of the evaporator and pump and helps to keep the water system in a better condition.

The water filter must be installed as close as possible to the chiller. If the water filter is installed in another part

of the water system, the installer has to guarantee the cleaning of the water pipes between the water filter and

the evaporator. The water used for filling the water circuit must be clean and suitably treated.

Precautions should be provided to protect the unit against freezing.

The heat recovery device must be emptied of water during the winter season, unless an ethylene glycol

mixture in appropriate percentage is added to the water circuit.

10.

In case of unit substitution, the entire water system must be emptied and cleaned before the new unit is

installed. Regular tests and proper chemical treatment of water are recommended after starting up the new

unit.

11.

In the event that glycol is added to the water system as anti-freeze protection, pay attention to the fact

that suction pressure will be lower, the unit’s performance will be lower and water pressure drops will be greater.

All unit-protection systems, such as anti-freeze, and low-pressure protection will need to be readjusted.

12.

Before insulating water piping, check that there are no leaks.