Carrier 45MAHAQ06XA3 - Pipe Length and Drop Height

37MGHAQ: Installation Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
24
C. PIPE LENGTH AND DROP HEIGHT
Ensure the length of the refrigerant pipe and the drop height between the indoor and outdoor units meets the requirements shown in Table 12.
Table 12 — Refrigerant Piping
Table 13 — Pipe Diameter
NOTE: Adapters for the outdoor units are listed in Table 14.
Table 14 — Outdoor Unit
37MGHAQ18CA3 37MGHAQ24DA3
37MGHAQ30EA3
37MGHAQ36EA3
37MGHAQ48FA3
37MGHAQ55FA3
Max. number of indoor units 3 4 5 6
Max. length for all rooms (ft/m) 197/60 262/80 262/80 262/80
Max. length per each indoor unit (ft/m) 98/30 115/35 115/35 115/35
Max. height difference between indoor and outdoor unit (ft/m) 49/15 49/15 49/15 49/15
Max. height difference between indoor units (ft/m) 33/10 33/10 33/10 33/10
EQUIPMENT DAMAGE HAZARD
Refrigerant pipe diameter is different according to indoor unit to
be connected. When using the extension pipe, refer to the tables
below.
When refrigerant pipe diameter is different from that of outdoor
unit union, additional transfer connector needs to be used on
outdoor unit.
CAUTION
INDOOR UNIT
Model Pipe diameter (inch (mm))
18K
Liquid 3x1/4in(3x6.35mm)
Gas 3x3/8in(3x9.52mm)
24K
Liquid 4x1/4in(4x6.35mm)
Gas
3x3/8in+1x1/2in
(3x9.52mm+1x12.7mm)
30K
Liquid 5x1/4in(5x6.35mm)
Gas
3x3/8in+2x1/2in
(3x9.52mm+2x12.7mm)
48K, 55K
Liquid 6x1/4in(6x6.35mm)
Gas
4x3/8in+2x1/2in
(4x9.52mm+2x12.7mm)
MODEL PIPE DIAMETER (INCH (MM)) ADAPTER (INCH (MM)) QTY
37MGHAQ18CA3
Liquid Φ1/4 (6.35)*3
Φ3/8 (Φ9.52)-->Φ1/2 (Φ12.7)
Φ1/2 (Φ12.7)-->Φ5/8 (Φ16)
2
1
Gas Φ3/8 (Φ9.52)*3
37MGHAQ24DA3
Liquid Φ1/4 (6.35)*4
Φ1/4 (Φ6.35)-->Φ3/8 (Φ9.52)
Φ1/2 (Φ12.7)-->Φ5/8 (Φ16)
Φ3/8 (Φ9.52)-->Φ1/2 (Φ12.7)
Φ1/2 (Φ12.7)-->Φ3/8 (Φ9.52)
1
1
1
1
Gas
Φ3/8 (Φ9.52)*3
Φ1/2 (Φ12.7)*1
37MGHAQ30EA3
37MGHAQ36EA3
Liquid Φ1/4 (6.35)*5
Φ1/4 (Φ6.35)-->Φ3/8 (Φ9.52)
Φ1/2 (Φ12.7)-->Φ5/8 (Φ16)
Φ3/8 (Φ
9.52)-->Φ1/2 (Φ12.7)
Φ1/2 (Φ12.7)-->Φ3/8 (Φ9.52)
2
2
1
2
Gas
Φ3/8 (Φ9.52)*3
Φ1/2 (Φ12.7)*2
37MGHAQ48FA3
37MGHAQ55FA3
Liquid Φ1/4 (6.35)*6
Φ1/4 (Φ6.35)-->Φ3/8 (Φ9.52)
Φ1/2 (Φ12.7)-->Φ5/8 (Φ16)
Φ3/8 (Φ9.52)-->Φ1/2 (Φ12.7)
Φ1/2 (Φ12.7)-->Φ3/8 (Φ9.52)
2
2
1
2
Gas
Φ3/8 (Φ9.52)*4
Φ1/2 (Φ12.7)*2