38MAR-04SI                                                                            Specifications subject to change without notice.                                    3
INTRODUCTION
The Horizontal Discharge Outdoor units are R-410A condensing units 
designed with application flexibility in mind. These units have a max 
total piping length up to 164 ft (50 m) and a maximum piping lift of 
up to 82 ft (25m), size dependent.
The inverter driven compressor is designed to run at various input 
power frequencies (Hz) which controls the compressor’s motor
speed.
ACCESSORIES
The system is shipped with the following accessories. Use all of the 
installation parts and accessories to install the system. Improper 
installation may result in water leakage, electrical shock and fire, or 
cause the equipment to fail. Keep the installation manual in a safe 
place and do not discard any other accessories until the installation 
work has been completed.
Table 1 —Accessories
Fig. 2 — Outdoor Unit
NOTE:
- If the outdoor unit is higher than the indoor unit, prevent rain 
from flowing into the indoor unit along the connection pipe by 
making a downward arc in the connection pipe before it enters 
the wall to the indoor unit. This ensures that rain drips from the 
connection pipe before it enters the wall.
- Piping and the interconnecting wiring are field supplied.
- Figure 2 is only a sketch. The actual model may differ slightly.
Table 2 lists the units covered in this document.
Table 2 — Unit Sizes
PART 
NO.
PART NAME QTY.
1 Outdoor unit 1
-
Literature package including installation instructions 
and warranty
1
-
Grommet to secure the outdoor unit (helps with 
vibration prevention during unit operation)
4
- Drain Joint 1
-Drain Hose 1
SYSTEM TONS KBTUH
VOLTAGE - 
PHASE
OUTDOOR 
MODEL
1.00 12,000 115-1 38MAQB12R--1
0.75 9,000 208/230-1 38MAQB09R--3
1.00 12,000 208/230-1 38MAQB12R--3
1.50 18,000 208/230-1 38MAQB18R--3
2.00 24,000 208/230-1 38MAQB24R--3
2.50 30,000 208/230-1 38MAQB30R--3
3.00 36,000 208/230-1 38MAQB36R--3