Sanyo CMH1972 Technical & Service Manual page 73

G
Install the indoor unit more than 3.3' (1 m) away from any
antenna or power lines or connecting wires used for tele-
vision, 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
Max.
Allowable
Model Tubing Length
per unit
(ft.)
CMH1972 82
CMH2472 82
CMH3172 100
* 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.
Max. Allowable Total
Tubing Length Total Tubing Length
at shipment
(L1+L2+L3) or
(L1+L2+L3+L4)
(ft.)
150 (L1+L2+L3) 150 (L1+L2+L3)
150 (L1+L2+L3+L4) 200 (L1+L2+L3+L4)
150 (L1+L2+L3+L4) 230 (L1+L2+L3+L4)
Limit of Limit of Elevation
Difference
(L1+L2+L3) or (H1, H2, H3, H4)
(L1+L2+L3+L4)
(ft.)
5
Required Amount
of Additional
Refrigerant
*
(ft.) (oz./ft.)
50 —
50 0.22
50 0.22