Combining Units And Options; Possible Options For The Heat Reclaim Ventilation Unit; Preparation; Overview: Preparation - Daikin VAM350J7VEB Installer And User Reference Manual

Operation range Temperature
Relative humidity
Unit location
It is possible that, due to condensation, the paper heat exchanger
deteriorates when the unit operates in conditions with high indoor
humidity combined with low outdoor temperature. If such combined
conditions occur for an extended period of time, the necessary
precautions must be taken to prevent condensation. Example: install
a preheater to heat up outdoor air.
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.
4.4

Combining units and options

4.4.1 Possible options for the heat reclaim
ventilation unit
Adapter PCB
Options BRP4A50A and KRP2A51.
At temperatures below –10°C, it is mandatory to use an electrical
heater. This heater is connected with option PCB BRP4A50A.
CAUTION
If an electrical heater is installed, use non-flammable duct.
For safety reasons, be sure to keep a distance of at least
2 m between the heater and the heat reclaim ventilation
unit.
When installing any of these options on model 650, prepare the
mounting plate (EKMP65VAM).
When installing any of these options on models 1500 or 2000,
prepare the mounting plate (EKMPVAM).
When installing option KRP2A51, prepare the installation box
(KRP1BA101).
Filter
When. This option may be mandatory. Check the local legislation. It
is recommended in places with poor outside air quality.
Where. Install the filter behind the heat exchange element either at
the supply air side or at the exhaust air side. Keep the standard filter
in place. Remove the standard filter ONLY when installing an option
filter both in front of and behind the heat exchange element.
How. For installation instructions, see the installation manual of the
filter kit.
Pressure drop over the filter. See the databook for pressure drop
curves for each capacity class of unit and each class of filter.
Model Filter 350+500
class
EKAFVJ50F6 M6
EKAFVJ50F7 F7
EKAFVJ50F8 F8
EKAFVJ65F6 M6
EKAFVJ65F7 F7
EKAFVJ65F8 F8
EKAFVJ100F6 M6
EKAFVJ100F7 F7
EKAFVJ100F8 F8
Plenum (EKPLEN200)
When. The plenum is an option for models 1500+2000. This option
can be used to ease the installation of the heat reclaim ventilation
unit.
VAM350~2000J7VEB
Heat reclaim ventilation unit
4P487293-1A – 2018.05
0°C DB~40°C DB
≤80%
650 800~2000
◯ — —
◯ — —
◯ — —
— ◯ —
— ◯ —
— ◯ —
— — ◯
— — ◯
— — ◯
Where. Replace the 2 duct joints of Ø250 mm with the plenum and a
duct joint of Ø350 mm.
How. For installation instructions, see the installation manual of the
plenum kit.
CO sensor (BRYMA*)
2
When. The CO sensor is optional. This option can be used to adapt
2
the ventilation rate to the CO concentration.
2
Where. Install the CO sensor in the heat reclaim ventilation unit. For
2
models 1500+2000, install the CO
ventilation unit.
How. For installation instructions, see
sensor" on page 36.
5

Preparation

5.1

Overview: Preparation

This chapter describes what you have to do and know before going
on-site.
It contains information about:

▪ Preparing the installation site

▪ Preparing the unit
▪ Preparing the electrical wiring
▪ Preparing the installation of the ducts
5.2 Preparing the installation site
Do NOT install the unit in places often used as work place. In case
of construction works (e.g. grinding works) where a lot of dust is
created, the unit MUST be covered.
Choose an installation location with sufficient space for carrying the
unit in and out of the site.
Do NOT install a heat reclaim ventilation unit or air suction/discharge
grille in the following places:
▪ Places, such as machinery plants and chemical plants, where
noxious gases or corrosive components of materials such as acid,
alkali, organic solvent and paint are present.
▪ Places, such as bathrooms, subject to moisture. Moisture can
cause electric shock, electric leakage and other failures.
▪ Places subject to high temperature or direct flames.
▪ Places subject to much soot. Soot clings to air filter and heat
exchange elements, disabling them.
5.2.1 Installation site requirements for the heat
reclaim ventilation unit
INFORMATION
Also read the general installation site requirements. See
the "General safety precautions" chapter.
5 Preparation
sensor in the top heat reclaim
2
"8.5.4 About the CO2
Installer and user reference guide
11