3.3 Piping Connection
The maximum pipe length is shown in the following table. When the distance between units (piping length) is
out of the range listed below, normal
operation
of the unit can not be guaranteed.
Table 5
Model
Connecting Pipe (inch)
Max. Pipe length(ft)
Max. Height Difference between Indoor
Unit and Outdoor Unit (ft)
Liquid
Gas
30K
Ï
1/4
3/8
229.6
When
the
outdoor
unit
is
above,
the
maximum height difference between
the
indoor and outdoor units is up to 49.2ft
.
When
the
indoor
unit
is
above,
the
maximum height difference between
the
indoor and outdoor units is up to 49.2ft
.
36K
Ï
1/4
Ï
3/8
246.1
42K
Ï
1/4
Ï
3/8
246.1
NOTICE
1) Use water-proof insulating pipe.
2) Wall thickness of pipe: 0.019-0.039 inch; bearing pressure: 3.0MPa
3) The longer the connection pipe is, the more
the
cooling and heating capacity will decrease.
9
Specifications are subject to change without notice.
Outdoor Unit
System size
30
36
42
Pi
pi
ng
Min. Piping Length
ft
9.84
9.84
9.84
Standard Piping Length
ft
131.2
131.2
131.2
Max. outdoor-indoor height difference
ft
49.2
49.2
49.2
Max. height distance between indoor and indoor
ft
24.6
24.6
24.6
Max. height distance between indoor and outdoor and indoor
ft
49.2
49.2
49.2
Max. height distance between indoor and outdoor and outdoor up
ft
49.2
49.2
49.2
Max. equivalent piping outdoor to last indoor
ft
82
82
82
Max. Piping Length with no additional refrigerant charge
ft
131.2
131.2
131.2
Max. Piping Length
ft
229.7
246
246
Additional refrigerant charge (between Standard – Max piping length)
Oz/ft
0.2
0.2
0.2
Gas Pipe (size - connection type)
in
3/8
3/8
3/8
Liquid Pipe (size - connection type)
in
1/4
1/4
1/4
Refrige
rant
Refrigerant Type
R-410A
R-410A
R-410A
Heat Pump Models Charge Amount
Lbs
6.17
8.05
8.05