To Install The Anchor Bolts; Duct Connections - Daikin VAM350J7VEB Installer And User Reference Manual

6 Installation
b Service cover
c Inspection hole
NOTICE
When the heat reclaim ventilation unit is installed upside
down, the minimum allowed outdoor air temperature is
5°C. If this cannot be guaranteed, you MUST install a
heater to heat up the outdoor air to 5°C.
▪ Keep in mind that the ceiling hooks must be rotated 180° when
the heat reclaim ventilation unit is installed upside down (see the
figure).
a
a Ceiling hook
b Service cover
6.3

To install the anchor bolts

Prerequisite: Before installing the anchor bolts, remove any foreign
objects, such as vinyl and paper, from the inside of the fan housing.
1 Install the anchor bolts (M10 to M12).
2 Pass the metal suspension brackets over the anchor bolts.
3 Secure the anchor bolts with washer and nut.
For models 350~1000:
For models 1500+2000:
a Ceiling hook
b Nut
Installer and user reference guide
16
b
a
b
c
d
a
b
c
d
c Washer
d Double nut
NOTICE
Always hang up the unit by its suspension brackets.
6.4

Duct connections

Do NOT connect the ducts as follows:
Extreme bend. Do NOT bend the duct more than 90°.
Multi bend
Reduced diameter. Do NOT reduce the duct diameter.
▪ The minimum bend radius for flexible ducts is as follows:
(Øduct/2)×1.5
▪ To prevent air leakage, wind aluminium tape around the section
where the duct joints and the ducts are connected.
▪ Install the opening of the supply air as far as possible from the
opening of the room air.
▪ Use ducts with a diameter that fits the unit model. See the data
book.
▪ Install the two outdoor ducts with a downward slope (minimum
1:50) to prevent entry of rain water. Also provide insulation for
both ducts, to prevent dew formation. (Insulation material: 25 mm
thick glass wool)
▪ If the temperature and humidity levels inside the ceiling are always
high, install ventilation inside the ceiling.
▪ Insulate the duct and the wall electrically when a metal duct has to
penetrate the metal lattice and wire lattice or the metal lining of a
wooden structure wall.
▪ Install the ducts in such a way that the wind CANNOT blow inside
the ducting.
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1A – 2018.05