Installation Details; Wrench Torque Sheet For Installation; Connecting The Cables; Pipe Length And The Elevation - Pioneer YN020GMFI22M2D Service Manual

4. Installation Details

5.1 Wrench torque sheet for installation

Outside
Torque
diameter
mm inch N.cm
Ф6.35 1/4 1500 (11 LbF*Ft)
Ф9.52 3/8 2500 (18 LbF*Ft)
Ф12.7 1/2 3500 (26 LbF*Ft)

5.2 Connecting the cables

The main power input connection wire size
should be selected according to the following
table.
Unit
DUAL (2 Zone)
TRIPLE (3 Zone)
QUAD (4 Zone)
QUINT (5 Zone)
For the cable set connecting indoor units to the
outdoor unit, use 16AWG (for all indoor types).

5.3 Pipe length and the elevation

Maximum piping length and height difference
2 Zone
Max. length for all 30
rooms (m) (100ft)
Max. length to one
20 (65ft)
Indoor Unit (m)
ODU
Max.
higher
height 10 (33ft)
than
difference
IDU
between
ODU
Indoor /
lower
Outdoor 15 (50ft)
than
(m)
IDU
Max. height
difference between 10 (33ft)
Indoor Units (m)
Additional tightening
torque
N.cm
1600 (12 LbF*Ft)
2600 (19LbF*Ft)
3600 (27 LbF*Ft)
AWG
14
14
12
10
3 Zone 4 Zone 5 Zone
45 60 75
(150ft) (200ft) (250ft)
30 30
25 (80ft)
(100ft) (100ft)
10
10 (33ft) 10 (33ft)
(33ft)
15
15 (50ft) 15 (50ft)
(50ft)
10
10 (33ft) 10 (33ft)
(33ft)
Additional refrigerant charge
2 Zone
Pre-charged up to
max total pipe
(50 ft)
length m (ft)
15 g per
excess
meter
g
Additional beyond
refrigerant total 15
charge meters
needed 0.16 oz
beyond
total max
excess
length oz
beyond
total 50
Caution:
● Refrigerant pipe diameters change according to
indoor unit model to be connected. When
extending the pipes, refer to the tables below.
● When refrigerant pipe diameter is different from
that of the outdoor unit connectors, additional
adapter(s) would be required and will be factory
supplied with your unit.
Indoor unit
Pipe diameter
Model
(mm/inch)
Liquid
9K
Gas
Liquid
12K 18K
Gas
Liquid
24K
Gas
Outdoor unit union diameter (mm/inch)
Dual (2 Zone)
Triple (3 Zone)
Quad (4 Zone)
Quint (5 Zone)
3 Zone 4 Zone
15 22.5 30
(75 ft) (100 ft)
15 g per 15 g per
excess additiona
meter l feet
beyond beyond
total 23 total 30
meters feet
0.16 oz 0.16 oz
per per per
excess excess
foot foot foot
beyond beyond
total 75 total 100
feet feet feet
Extension pipe diameter
(mm/inch)
6.35 (1/4) Liquid
9.52 (3/8) Gas
6.35 (1/4) Liquid
12.7 (1/2) Gas
9.52 (3/8) Liquid
15.9 (5/8) Gas
Liquid
Gas
Liquid
Gas
Liquid
Gas
Liquid
Gas
5 Zone
37.5
(125 ft)
15 g per
additional
feet
beyond
total 38
feet
0.16 oz
per
excess
foot
beyond
total 125
feet
6.35 (1/4)
9.52 (3/8)
6.35 (1/4)
12.7 (1/2)
9.52 (3/8)
15.9 (5/8)
6.35 (1/4)
*2
9.52 (3/8)
*2
6.35 (1/4)
*3
9.52 (3/8) *3
6.35 (1/4)
*4
9.52 (3/8)
*3
12.7 (1/2) *1
6.35 (1/4)
*5
9.52 (3/8) *3
12.7 (1/2) *2