York HIC4008B21S Installation And Maintenance Manual page 13

3. Select the installation location as follows:
• Minimum Space
• Down slope gradient for condensate piping: 1/25 to 1/100
It is recommended that the indoor unit be
installed at 7.9 ft (2.4m) from floor level.
NOTE:
There must be sufficient structural integrity to support
the weight of the unit. The designated ceiling surface
area should allow for additional space for the optional
decorative panel installation. Do not install against any
sloped ceiling areas as the tilted axis will interfere with
the proper flow and disposal of moisture.
4. Consider the air distribution from the indoor unit to the space of the room, and select a suitable location
so that uniform air temperature in the room can be obtained. If the unit is installed on a high ceiling, it is
also recommended that a three-way Outlet Parts Set (optional) be utilized so that uniform air distribution
can be achieved.
5. Install the unit where there are no obstacles which can impede the suction air and discharged air.
6. Do not install the unit near a door or a window where the indoor unit come into contact with humid
outside air. Otherwise, condensation may occur.
7. In the event that temperature and humidity levels inside the ceiling exceed 86
Humidity) 80%, apply additional insulation materials to the external surface of the indoor unit to avoid
condensation.
8. If installing the indoor unit to a high ceiling, the warmed air will remain near the ceiling during heating
operation. Thus, a parallel installation of a circulator is recommended.
9. Do not install the indoor unit where airflow from the air outlet blows directly onto temperature detection
devices such an alarm device or a control device. It can result in a failure of either device.
10. The live sensor area of the motion sensor is shown below when applying the motion sensor with the
decorative panel.
Model
Installation Height
of Indoor Unit "h" (m)
Detecting Area
(Diameter) "fa" (m)
Motion Detection
11. Do not install the indoor unit where airflow from the air outlet blows directly onto temperature sensing
devices such as an alarm device or a control device. This can result in false readings and an alarm
failure.
P5417054
008 to 024 030 to 048
Type
ft 8.9
(2.7)
ft Approx. 23 Approx. 28.9
(Approx. 7) (Approx. 8.8)
Human Motion
Type
10.5
(3.2)
Motion/
Radiation
Sensor
Unit: inch (mm)
Minimum 3/8 (10)
Clearance
008 to 018 Type: 9-3/4 (248)
024 to 048 Type: 11-3/4 (298)
(Unit Height in False Ceiling)
Condensate Piping
Down Slope
Gradient: 1/25 to 1/100
o o
F (30 C)/RH (Relative
Motor Sensor
Radiation Temp.
Detection Area
Detection Area
φa
2.6 ft (0.8m)
Above Floor
h
9