Panasonic WU-216MF2U9 - Technical Data Manual - Page 45

4. SELECTING THE INSTALLATION SITE Design of 3WAY VRF SYSTEM 4-1. Outdoor Unit AVOID: heat sources, exhaust fans, etc. damp, humid or uneven locations indoors (no-ventilation location) CAUTION Leave space open above the unit. Construct louvers or other openings in the wall, if necessary, to ensure adequate ventilation. DO: choose a place as cool as possible. choose a place that is well ventilated. NOTE Do not do any wiring or tubing within 1 ft. (0.3m) of the front panel, because this space is needed as a servicing space for the compressor. allow enough room around the unit for air intake/exhaust and possible maintenance. Ensure a base height of 4" (100mm) or more to ensure that drainage water does not accumulate and freeze around the use lug bolts or equal to bolt down unit, reducing vibration bottom of the unit. and noise. If installing a drain pan, install the drain pan prior to 1 Exhaust fan installing the outdoor unit. * Make sure there is at least 6" (150mm) between the outdoor Hot air unit and the ground. Outdoor unit Heat source Also, the direction of the tubing and electrical wiring should be from the front of the outdoor unit. * When setting the anchor bolt to "B" or "C" (see page 2-41), 2 make enough space for installation operation. (Space between units: Over 7-3/32" (180mm), Space from wall: Over 9-27/32" (250mm)) * When installing a snow-proof ducting, make space between Installation Space the units 7-3/32" (180mm) regardless of the positions (A - 3 Install the outdoor unit where there is enough space for C) for installation holes. (See page 2-43) * Make a walk-in space in front and behind the unit to ensure ventilation. Otherwise the unit may not operate properly. ease of operation. The figure shows the minimum space requirement around the outdoor units when 3 sides are open and only 1 side is * If any obstacle exists above the air discharge outlet, provide a minimum space of 7 ft.(2m) between the air shuttered, with open space above the unit. The mounting base should be concrete or a similar material that allows for adequate drainage. Make provisions for anchor bolts, platform discharge outlet and a nearby obstacle. Make sure there is 4 no obstacle around the outdoor unit on four sides and the place is well ventilated. height, and other site-specific installation requirements. Example: 2 units installation * For other installation, follow the standards of combination installation. 5 Wall height: Less than 1.7ft. (500mm) Wall height: Unlimited Over 1 ft.(300mm) ** Over 2 in. (50mm) 6 ** Over 2 in. (50mm) Over 1.7ft. (500mm) 7 **Over 2-23/64 in. (60mm) Wall height: Unlimited Wall height: Less than 4.9 ft. (1500mm) 8 2 - 29 9