4
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
Description Qty Usage
Wall Mounting
Bracket
1 For Indoor Unit Installation
Screws, 4XL10 2
For Attaching The Remote Control
Holder To The Wall
Screws, 5XL25 5/14*
For Attaching The Mounting Bracket To
The Wall
Remote Control 1 For C ontrolling Unit
Remote Control
Holder
1 Holder For Remote Control
* 5 screws for unit sizes 18 and 24. 14 screws for unit sizes 30 and 36.
Outdoor Unit
The following items are included with the outdoor unit:
38HDF018-036
A09499
Fig. 5 -- 38HDF018--036
A09500
Fig. 6 -- 38QRF018--036
Model Filter Drier
Piston
Cap
Pistons*
Flare
Connector
38HDF n n n n
38QRF n n (qty 2) n n (qty 3)
* Multiple pistons. Quantity varies with size.
Table 2 – Matched Systems
System
Ty p e
Nominal
Capacity
Outdoor
Unit
Indoor
Unit
Cooling
Only
018 3 8 H D F 0 1 8 --- --- --- 3 40QNC018024--- --- ---3
024 3 8 H D F 0 2 4 --- --- --- 3 40QNC018024--- --- ---3
030 3 8 H D F 0 3 0 --- --- --- 3 4 0 QN C 0 3 0 --- --- --- 3
036 38HDF036--- --- ---3/ 5/6 4 0 QN C 0 3 6 --- --- --- 3
Heat
Pump
018 3 8 QR F 0 1 8 --- --- --- 3 4 0 QN Q 0 1 8 --- --- --- 3
024 3 8 QR F 0 2 4 --- --- --- 3 4 0 QN Q 0 2 4 --- --- --- 3
030 3 8 QR F 0 3 0 --- --- --- 3 4 0 QN Q 0 3 0 --- --- --- 3
036 38QRF036--- --- ---3/ 5/ 6 4 0 Q N Q 0 3 6 --- --- --- 3
SYSTEM REQUIREMENTS
Clearances
Allow sufficient space around the indoor and outdoor unit for
proper airflow circulation and servicing. Refer to Fig. 3 and Fig. 4
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
Length ft(m)
Max Elevation (ID
over OD) ft(m)
Max Elevation (OD
over OD) 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)
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)
Unit Size M i x P h a s e --- i n Vapor --- in
18K 3/8 5/8
24K 3/8 5/8
30K 3/8 3/4
36K 3/8 3/4
Note:Both lines need to be insulated using at least 1/2 inch closed foam
insulation.
Condensate Drain Pipe Sizes
Refertotable5fortherequiredsizes.
Table 5 – Drain Pipe Sizes
Unit Size Outside Diameter --- in Inside Diameter --- in
18K 5/8 7/16
24K 5/8 7/16
30K 3/4 5/9
36K 3/4 5/9
Note:Do not trap condensate pipe.