Installation Instructions; Tubing Length - Sanyo KH2442 / CH2442 Service Manual

1-13 Installation Instructions

Tubing Length

Refrigerant tubing between the indoor and
outdoor units should be kept as short as
possible.
Select and decide the installation location so
that the length of the refrigerant tubing will be
within the limits given in Table 1-10.
Table 1-10
Tubing Data
Narrow tube
Tubing size
outer dia.
Wide tube
Limit of tubing length
Outdoor unit is higher
Limit of elevation
than indoor unit
difference between
Outdoor unit is lower
the 2 units
Max. allowable tubing length at shipment (ft.)
Required additional refrigerant
No additional charge of compressor oil is necessary.
1
* If total tubing length becomes 100 to 165 ft., charge additional refrigerant (R22) by 0.48 oz./ft..
* 2 If total tubing length becomes 100 to 165 ft., charge additional refrigerant (R22) by 0.53 oz./ft..
Models
CH2442
in. (mm) 1/4 (6.35)
in. (mm) 3/4 (19.05)
(ft.) 165
165
(ft.)
100
than indoor unit (ft.)
100
(oz./ft.) 0.48
I - 99
INDOOR
UNIT
Elevation difference (H)
Fig. 1-1
CH3642, CH4242
3/8 (9.52)
3/4 (19.05)
165
165
100
100
*1 0.53 *2
1. Specifications
Tubing length (L)
OUTDOOR
UNIT
0711_M_I
SM830082
1
2
3
4
5