Figure 6 - Water Piping Connection For Evaporator; Figure 7 - Water Piping Connection For Heat Recovery Exchangers - Daikin EWYD-BZ Series Installation, Maintenance & Operation Manual

9 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 If the machine is intended to replace another, 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 before starting up
the new machine.
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 machine's performance will be lower and water pressure drops will be greater. All
machine-protection systems, such as anti-freeze, and low-pressure protection will need to be readjusted.
Before insulating water piping, check that there are no leaks.

Figure 6 - Water piping connection for evaporator

Figure 7 - Water piping connection for heat recovery exchangers

Legend translation
Gauge
Flexible connector
Flow switch
Thermometer
Isolating valve
Pump
Filter
Gauge
Flexible connector
Flow switch
Thermometer
Isolating valve
Pump
Filter
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