Tubing Size - Panasonic Inverter R32 Series Technical Data & Service Manual

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Tubing Size

Refrigerant tubing between the indoor and outdoor units should be kept as short as possible.
The lengths of the refrigerant tubes between the indoor and outdoor units are limited by the elevation difference between the 2 units.
During tubing work, try to make both the tubing length (L) and the difference in elevation (H1) as short as possible.
Single
Outdoor unit type
Maximum allowable tubing length
Charge-less tubing length
(actual length)
Additional charge per 1 m
Tubing Data for Models
Tubing Data
Main tubing L
Tubing size outer diameter
Limit of tubing length
Limit of elevation difference
U-60PZ2R5
between the 2 units
U-71PZ2R5
Max. allowable tubing length at shipment
40 m
Required additional refrigerant
3 – 30 m
Refrigerant charged at shipment
35 g
Total refrigerant amount
Liquid tube
Gas tube
Outdoor unit is placed higher (m)
Outdoor unit is placed lower
1-11-6
Models U-60PZ2R5
U-71PZ2R5
mm (in.) 9.52 (3/8)
mm (in.) 15.88 (5/8)
(m) 40
30
(m) 15
(m) 3 – 30
(g/m) 35
(kg) 1.45
(kg) 1.80