Filter
Top Products
7
These installation instructions cover the installation of the matched
systems listed in table 2.
Parts List
Indoor Unit
The following items are included with the indoor unit:
Table 1 – Installation Materials
Part No. Name of Part Qty.
1 Side Panels 2
2 Hex HeadBolts 4
3 MountingBracket 2
4 Pistons 1
5 InstallationTemplate 1
6 Adapter T ubes 2
A09532
Fig. 6 -- Hanging Fan Coil Unit
Outdoor Unit
The following items are included with the outdoor unit:
A09536
Fig. 7 -- 38HDR018--036
A09537
Fig. 8 -- 38QRR018--036
Model Filter Drier
Piston
Cap
Pistons
Flare
Connector
38HDR n --- --- ---
38QRR n n n n
Table 2 – Matched Systems
System
Type
Nominal
Capacity
Outdoor Unit Indoor Unit
Cooling
018 38HDR018--- --- ---3
40QAC024 --- --- ---3
*
024 38HDR024--- --- ---3 40QAC024--- --- ---3
030 38HDR030--- --- ---3 40QAC036--- --- ---3
036 38HDR036---------3/5/6 40QAC036--- --- ---3
048 38HDR048---------3/5/6 40QAC048--- --- ---3
060 38HDR060---------3/5/6 40QAC060--- --- ---3
HeatPumps
HeatPumps
018 38QRR018--- --- ---3 40QAQ024--- --- ---3
024 38QRR024--- --- ---3 40QAQ024--- --- ---3
030 38QRR030--- --- ---3 40QAQ036--- --- ---3
036 38QRR036---------3/5/6 40QAQ036 --- --- ---3
048 38QRR048---------3/5/6 40QAQ048 --- --- ---3
060 38QRR060---------3/5/6 40QAQ060 --- --- ---3
* Units mustbe configured for 1---1/2 ton operation. Referto instructions
on page9.
SYSTEM REQUIREMENTS
Clearances
Allow sufficient space around the indoor and outdoor unit for
proper airflow circulation and servicing. Refer to Fig. 1 through
Fig. 5 for minimum required clearances.
Piping: Piping and insulation is field supplied.
Piping Lengths
The minimum length between the indoor and outdoor units is 10 ft
(3 m). Refer to table 3 for the maximum lengths allowed.
Table 3 – Maximum Refrigerant Line Lengths
Unit
Size
Max Line
Lengthft(m)
Max Elevation (ID
overOD) ft(m)
Max Elevation (OD
overOD) ft(m)
18K 200 (61) 65(19.8) 200 (61)
24K 200 (61) 65(19.8) 200 (61)
30K 200 (61) 65(19.8) 200 (61)
36K 200 (61) 65(19.8) 200 (61)
48K 200 (61) 65(19.8) 200 (61)
60K 200 (61) 65(19.8) 200 (61)
Note:For lengths greater than 25 ft (7.6 m), refer to the Duct Free Long
Line Guide.
Pipe Sizes
Refer to table 4 for pipe sizes.
Table4–PipeSizes
PIPE SIZES (in)
UnitSize Liquid Phase
Vapor
38HDR 38QRR
18 3/8 5/8 5/8
24 3/8 5/8 5/8
30 3/8 3/4 3/4
36 3/8 3/4 3/4
48 3/8 7/8 3/4
60 3/8 7/8 3/4
Note: On heat pumps, both linesneed to be insulatedusingat least1/2 inch
closedfoam insulation.
40QAC/38HDR -- 40QAQ/38QR
R