Panasonic 26PEK2U6 26PEK2U6 Service Manual - Page 111
Precautions for Installation in Heavy Snow Areas, 3. Installing the Unit in Heavy Snow Areas
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3-2. Air-Discharge Chamber for Top Discharge Be sure to install an air discharge chamber in the field when: it is difficult to keep a space of min. 20" between the air discharge outlet and an obstacle. the air discharge outlet is facing a sidewalk and discharged hot air may bother passers-by. Refer to Fig. 1-9. 3-3. Installing the Unit in Heavy Snow Areas In locations with strong wind, snow-proof ducting should be fitted and direct exposure to the wind should be avoided as much as possible. Countermeasures against snow and wind In regions with snow and strong wind, the following problems may occur when the outdoor unit is not provided with a platform and snow-proof ducting: a) The outdoor fan may not run and damage to the unit may occur. b) There may be no air flow. c) The tubing may freeze and burst. d) The condenser pressure may drop because of strong wind, and the indoor unit may freeze. 3-4. Precautions for Installation in Heavy Snow Areas (1) The platform should be higher than the max. snow depth. (Fig. 1-10) (2) The 2 anchoring feet of the outdoor unit should be used for the platform, and the platform should be installed beneath the air intake side of outdoor unit. (3) The platform foundation must be firm and the unit must be secured with anchor bolts. (4) In case of installation on a roof subject to strong wind, countermeasures must be taken to prevent the unit from being blown over. Air discharge 1. Specifications Air discharge Fig. 1-9 In regions with significant snowfall, the outdoor unit should be provided with a platform and snow-proof duct. 1 Without snowproof ducting (Low platform) With snowproof ducting (High platform) Fig. 1-10 Outdoor Unit Duct 1-103 Air Intake Fig. 1-11