EasyManuals Logo

Carrier 38C Series User Manual

Carrier 38C Series
32 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #27 background imageLoading...
Page #27 background image
Table 4 - Refrigerant Charge Adjustments
Liquid Line
Size
Puron Charge
(oz/
ft
)
3/8 0.60 (Factory charge for lineset = 13.5 oz (382.7)
5/16
0.40
1/4
0.27
Units are factory charged for 25 ft (7.6 m) of 3/8” liquid line. The factory charge for 3/8” lineset 9 oz (266.2 g). When using other length or
diameter liquid lines, charge adjustments are required per the chart above.
Charging Formula:
[(Lineset oz/ft x total length) (factory charge for lineset)] = charge adjustment
Example 1: System has 25ft of line set using existing 1/4“liquid line. What charge adjustment is required?
Formula: (.27 oz/ft x 25ft) (13.5 oz) = -6.75 oz; (8.0 g/m x 7.6 m) (382.7 g) = -321.9 g
Net result is to remove 6.75 oz of refrigerant from the system
Example 2: System has 45 ft of existing 5/16” liquid line. What is the charge adjustment?
Formula: (.40 oz/ft. x 45ft) (13.5 oz.) = 9 oz; (11.8 g/m x 13.7m) (382.7 g) = -221.0 g
Net result is to add 4.5 oz of refrigerant to the system
LSV (Heat Pump
Only)
Fig. 2 EqualLevel Outdoor/Indoor Unit
A TXV with 15 to 30% bleed must be installed at indoor unit when application qualifies as long line. See Table 6.
Hard Start Kit (start capacitor and relay) must be installed on outdoor unit when application qualifies as long line. See Table 6.
A crankcase heater must be installed on compressor when the application qualifies as long line. See Table 6 .
Vapor line should slope towards indoor unit.
Maximum actual liquid line is up to 100 (61 m). See Table 5.
Maximum total equivalent length is up to 120 (76.2 m). See Table 5.
Heat pump only Bi- flow liquid line solenoid must be installed within 2 ft (0.61 m) of outdoor unit with arrow pointing towards
outdoor unit.
Heat pump only Outdoor AccuRater
TM
adjustment not required
Use vapor line per Tables 3.
Use liquid lines per Table 5.
Table 5 Maximum Total Equivalent Length
Equal Level or Outdoor Unit Below Indoor
Size
System
Ty
pe
Liquid
Line
Diameter
w/ TX
V
Maximum Total Equivalent L
e
n
g
th**
:
Outdoor unit BELOW
I
n
door
Vertical Separation ft
(
m
)
0
---
5
(0
---
1.
5)
6
---
10
(1.8
---
3.
0)
11
---
20
(3.4
---
6.
1)
21
---
30
(6.4
---
9.
1)
31
---
40
(9.4
---
12.
2)
41
---
50
(12.5
---
15.
2)
51
---
60
(15.5
---
18.
3)
61
---
70
(18.6
---
21.
3)
71
---
80
(21.6
---
24.
4)
18000
AC
Only
1/4
150*
150*
125 100 100 75 ---
---
---
---
---
---
AC
Only
5/16
150*
150*
150*
150*
150*
150*
150*
150*
150
AC/HP
3/8
150*
150*
150*
150*
150*
150*
150*
150*
150*
24000
AC
Only
1/4
75 75 75 50 50 ---
---
---
---
---
---
---
---
AC
Only
5/16
150*
150*
150*
150*
150*
150*
150*
125 100
AC/HP
3/8
150*
150*
150*
150*
150*
150*
150*
150*
150*
30000
AC
Only
1/4
30 ---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
AC
Only
5/16
150*
125*
100 150 125 100 75 ---
---
---
---
AC/HP
3/8
150*
150*
150*
150*
150*
150*
150*
150*
150*
36000
AC
Only
5/16
150*
150*
150*
100 100 100 75 ---
---
---
---
AC/HP
3//8
150*
150*
150*
150*
150*
150*
150*
150*
150*
48000
AC/HP
3/8
150*
150*
150*
150*
150*
150*
150*
150*
---
---
60000
AC/HP
3/8
150*
150*
150*
150*
150*
150*
150*
---
---
---
---
*
Maximum actual length not to exceed 100ft
**
Total equivalent length accounts for losses due to elbows or fitting. See the Table 2 for
de
tails.
--- ---
=
outside acceptable r
a
n
ge
Page 27

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Carrier 38C Series and is the answer not in the manual?

Carrier 38C Series Specifications

General IconGeneral
BrandCarrier
Model38C Series
CategoryAir Conditioner
LanguageEnglish

Related product manuals