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Adjust the distance between the panels in the vertical direction as
follows:
b
a
Vertical distance for ceiling material
b
Ceiling board
Panel type
BYFQ60B (Standard panel)
BYFQ60C (Design panel)
To create an opening in an existing monolithic
ceiling board
NOTICE
It is necessary to provide a service space in the ceiling
where the switch box and water pipes can be reached.
Below dimensions can be used as a reference for the
service space or it can be determined by considering the
position of the switch box (b) and water pipes (a)
connections at the installation site.
a
If the unit must be installed in an existing monolithic ceiling board,
please follow the following dimensions:
According to the models & panels combination:
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.
FWF02~05D
Fan coil units
3P443944-9T – 2023.01
a
a
25 mm
34 mm
b
a (mm)
Design Panel
BYFQ60C
595~600
(a)
≥652 A
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.
▪ 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.
5 Unit installation
a
b
b
Installation and operation manual
9
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