Daikin VAM350J7VEB Installer And User Reference Manual

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Daikin VAM350J7VEB Installer And User Reference Manual Manual pdf 11 page image

5 PreparationInstaller and user reference guide11VAM350~2000J7VEBHeat reclaim ventilation unit4P487293-1A – 2018.05Operation rangeUnit locationTemperature 0°C DB~40°C DBRelative humidity ≤80%It is possible that, due to condensation, the paper heat exchangerdeteriorates when the unit operates in conditions with high indoorhumidity combined with low outdoor temperature. If such combinedconditions occur for an extended period of time, the necessaryprecautions must be taken to prevent condensation. Example: installa preheater to heat up outdoor air.When the heat reclaim ventilation unit is installed upside down, theminimum allowed outdoor air temperature is 5°C. If this cannot beguaranteed, you MUST install a heater to heat up the outdoor air to5°C.4.4 Combining units and options4.4.1 Possible options for the heat reclaimventilation unitAdapter PCBOptions BRP4A50A and KRP2A51.At temperatures below –10°C, it is mandatory to use an electricalheater. This heater is connected with option PCB BRP4A50A.CAUTIONIf an electrical heater is installed, use non-flammable duct.For safety reasons, be sure to keep a distance of at least2 m between the heater and the heat reclaim ventilationunit.When installing any of these options on model 650, prepare themounting 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).FilterWhen. This option may be mandatory. Check the local legislation. Itis recommended in places with poor outside air quality.Where. Install the filter behind the heat exchange element either atthe supply air side or at the exhaust air side. Keep the standard filterin place. Remove the standard filter ONLY when installing an optionfilter both in front of and behind the heat exchange element.How. For installation instructions, see the installation manual of thefilter kit.Pressure drop over the filter. See the databook for pressure dropcurves for each capacity class of unit and each class of filter.Model Filterclass350+500 650 800~2000EKAFVJ50F6 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 optioncan be used to ease the installation of the heat reclaim ventilationunit.Where. Replace the 2 duct joints of Ø250 mm with the plenum and aduct joint of Ø350 mm.How. For installation instructions, see the installation manual of theplenum kit.CO2 sensor (BRYMA*)When. The CO2 sensor is optional. This option can be used to adaptthe ventilation rate to the CO2 concentration.Where. Install the CO2 sensor in the heat reclaim ventilation unit. Formodels 1500+2000, install the CO2 sensor in the top heat reclaimventilation unit.How. For installation instructions, see "8.5.4 About the CO2sensor" on page 36.5 Preparation5.1 Overview: PreparationThis chapter describes what you have to do and know before goingon-site.It contains information about:▪ Preparing the installation site▪ Preparing the unit▪ Preparing the electrical wiring▪ Preparing the installation of the ducts5.2 Preparing the installation siteDo NOT install the unit in places often used as work place. In caseof construction works (e.g. grinding works) where a lot of dust iscreated, the unit MUST be covered.Choose an installation location with sufficient space for carrying theunit in and out of the site.Do NOT install a heat reclaim ventilation unit or air suction/dischargegrille in the following places:▪ Places, such as machinery plants and chemical plants, wherenoxious gases or corrosive components of materials such as acid,alkali, organic solvent and paint are present.▪ Places, such as bathrooms, subject to moisture. Moisture cancause 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 heatexchange elements, disabling them.5.2.1 Installation site requirements for the heatreclaim ventilation unitINFORMATIONAlso read the general installation site requirements. Seethe "General safety precautions" chapter.