System Requirements - Carrier 38MAQB09R-1 Installation Instructions Manual

SYSTEM REQUIREMENTS

Allow sufficient space for airflow and service of the unit. See Fig. 3 for the required minimum distances between the unit, walls or ceilings.
Piping
IMPORTANT: Both refrigerant lines must be insulated separately.
S Table 3 contains piping information for the product covered within this document.
38MAR SIZE
Min. Piping
Ft (m)
Length
Standard
Ft (m)
Piping Length
Max. Outdoor
indoor height Ft (m)
difference
Max. Piping
Length with
no additional
Ft (m)
refrigerant
charge
Max. Piping
Piping
Ft (m)
Length
Additional
refrigerant
charge
Oz/ft
(between
(g/m)
Standard –
Max piping
length)
in
Gas Pipe
(mm)
in
Liquid Pipe
(mm)
Refrigerant
-
Type
Heat Pump
Refrigerant
Models
Lbs
Charge
(kg)
Amount
All outdoor units have an electronic expansion valve to manage the refrigerant flow of the fan coil connected.
Table 3—Piping And Refrigerant Information
9K 12K
(208/230V)
(115V) (115V)
10 (3) 10 (3) 10 (3)
25 (7.5) 25 (7.5) 25 (7.5)
32 (10) 32 (10) 32 (10)
26 (8) 26 (8) 26 (8)
82 (25) 82 (25) 82 (25)
0.16 (15) 0.16 (15) 0.16 (15)
3/8 1/2
9.52 12.7 9.52
1/4 1/4
6.35 6.35 6.35
R410A R410A R410A
2.76 (125) 2.76 (125) 3.31 (1.5)
9K 12 18K
(208/230V) (208/230V)
10 (3) 10 (3)
25 (7.5) 25 (7.5)
32 (10) 65 (20)
26 (8) 26 (8)
82 (25) 98 (30)
0.16 (15) 0.16 (15)
3/8 1/2 1/2
12.7 12.7
1/4 1/4 1/4
6.35 6.35
R410A R410A
3.31 (1.5) 4.30 (1.95)
4
24K 30K
(208/230V) (208/230V)
(208/230V)
10 (3) 10 (3) 10 (3)
25 (7.5) 25 (7.5) 25 (7.5)
65 (20) 82 (25) 82 (25)
26 (8) 26 (8) 26 (8)
98 (30) 164 (50) 164 (50)
0.32 (30) 0.32 (30) 0.32 (30)
5/8 5/8
16 16
3/8 3/8
9.52 9.52
R410A R410A R410A
5.73 (2.60) 6.06 (2.75) 7.50 (3.40)
36K
5/8
16
3/8
9.52