Daikin FWF02D FWF03D FWF04D FWF05D Manual De Instalación Y Funcionamiento página 9

Type
Standard Model
BYFQ60B
No valve 600~660
Factory mounted 652~660
valve
(a)
A: Hang the unit from the suspension bolts, then adjust the size
of the opening to be between 585-595 mm by adding extra ceiling
material (b) so that the panel and ceiling board can overlap.
a
5.3 Water piping installation
5.3.1 Preparing water piping
Before performing the water piping work, check the following points:
▪ The maximum water pressure is 1.6 MPa.
▪ The minimum water temperature is 5°C.
▪ The maximum water temperature is 80°C.
FWF02~05D
Fan coil units
3P443944-9T – 2023.01
a (mm)
Design Panel
BYFQ60C
595~600
(a)
≥652 A
a
b
b
▪ Be sure to install components in the field piping that can withstand
the water pressure and temperature.
▪ Provide adequate safeguards in the water circuit to ensure that
the water pressure will never exceed the maximum allowable
working pressure.
▪ Provide a proper drain for the pressure relief valve (if installed) to
avoid any water from coming into contact with electrical parts.
▪ Provide shut-off valves at the unit so that normal servicing can be
accomplished without draining the system.
▪ Provide drain taps at all low points of the system to permit
complete draining of the circuit during maintenance or service to
the unit.
▪ Provide air purge valves at all high points of the system. The
valves shall be located at points which are easily accessible for
servicing.
The unit is equipped with a water inlet and water outlet for
connection to the water circuit. The water circuit must be provided by
an installer and must comply with the applicable legislation.
▪ Pipework shall be protected from physical damage.
NOTICE
The unit is ONLY to be used in a closed water system.
Application in an open water circuit can lead to excessive
corrosion of the water piping.
NOTICE
Make sure water quality complies with EU directive
2020/2184.
NOTICE
Use of glycol is allowed, but the amount shall NOT exceed
40% of the volume. A higher amount of glycol may cause
damage to the hydraulic components.
5.3.2 Connecting water piping
CAUTION
Always use valves to control water circulation in the unit. If
the fan coil unit is off, but water keeps circulating in the
unit, condensation will form on the unit and water may drip.
NOTICE
Make sure to insulate all piping. Any exposed piping might
cause condensation.
DANGER: RISK OF BURNING/SCALDING
a
b
c
d
f e
a Cooling air purge
b Heating air purge
c Hot water inlet (3/4ʺ female BSP)
d Hot water outlet (3/4ʺ female BSP)
e Cold water inlet (3/4ʺ female BSP)
f Cold water outlet (3/4ʺ female BSP)
5 Unit installation
Installation and operation manual
9