Heat pump 50Hz/R410A
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3. Installation of outdoor unit
Part 3 Design and installation
3.1.1 Points for explanation about operations
The items with WARNING and CAUTION marks in the operation manual are the items pertaining to possibillties for bodily
injury and material damage in addition to the general usage of the product. Accordingly, it is necessary that you make a full
explanation about the described contents and also ask your customers to read the operation manual.
3.1.2 Note to the installer
Be sure to instruct customers how to properly operate the unit (especially cleaning filters, operating different functions, and
adjusting the temperature) by having them carry out operations themselves while looking at the manual.
3.1.3 Selecting installation site for outdoor units
Select an installation site where the following conditions are fulfilled and that meets with your customer
'
s approval.
①
Location strong enough to bear the weight of the unit.
②
Location accessible and having enough clearance for inspection and service in the future.
③
Location allowing easy condensate drainage suitable gradient of the unit and the drain pipe.
④
Piping between the indoor and outdoor unit is possible within the allowable limits.
⑤
Location free from electrical noise.
⑥
Location allowing optimum air distribution without any blocking to air flow.
⑦
Location having no risk of flammable gas leakage.
⑧
Location free from mineral oil mist or an oil spray or vapor eg in kitchen .It could result in leakage .
⑨
Location free from corrosive gases such as sulphurous acid gas because it corrodes the copper pipes or soldered parts
resulting in leakage .
⑩
Location free from any machinery emitting electromagnetic waves which may disturb the control system thus causing
malfunction of the unit .
⑪
Location free from flammable gases , carbon fibre , or ignitable dust suspensions in the air or where volatile flames are
handled like gasoline or thinner. Operating in such conditions may result in fire .
⑫
Install the indoor and outdoor units, power supply wiring and connecting wires at least 1m. away from televisions or
radios in order to prevent image interference or noise. (Depending on the radio waves, a distance of 1m. may not be suf-
ficient enough to eliminate the noise.)
⑬
Consider whether the place where the unit will be installed can support the full weight of the unit, and reinforce it with
boards and beams, etc. if needed before proceeding with the installation. Also, reinforce the place to prevent vibration
and noise before installing. (The installation pitch can be found on the paper pattern for installation (3), so refer to it when
considering the necessity for reinforcing the location.)
⑭
Obey the local and national regulations and limits regarding airconditioner installation.
⑮
Location free from lavatory (NH3.etc.). NH3 gas will cause corrosion of outdoor unit metallic parts.
