Sanyo CMH3172 Service Manual - Page 67
Electrical noise from any of these sources may affect
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G Install the indoor unit more than 3.3' (1 m) away from any antenna or power lines or connecting wires used for television, radio, telephone, security system, or intercom. Electrical noise from any of these sources may affect operation. G install in a sturdy manner to avoid increased operating noise. Table 3 Model Max. Allowable Tubing Length per unit (ft.) Max. Allowable Total Tubing Length at shipment (L1+L2+L3) or (L1+L2+L3+L4) (ft.) Limit of Total Tubing Length (L1+L2+L3) or (L1+L2+L3+L4) (ft.) Limit of Elevation Difference (H1, H2, H3, H4) (ft.) Required Amount of Additional Refrigerant (oz./ft.)* CM1972/CLM1972 82 150 (L1+L2+L3) 150 (L1+L2+L3) 50 - CM2472/CLM2472 82 150 (L1+L2+L3+L4) 200 (L1+L2+L3+L4) 50 0.22 CM3172/CLM3172 100 150 (L1+L2+L3+L4) 230 (L1+L2+L3+L4) 50 0.22 * If total tubing length becomes 150 to 200 ft. (Max.) or 150 to 230 ft. (Max.), charge additional refrigerant (R410A) by 0.22 oz./ft. No additional charge of compressor oil is necessary. For more detailed charging information, refer to the Technical & Service Manual. 5