Carrier 09DK Series - Page 8

8
09DK028,034 60/40% Circuiting Modification
— To con-
vert the 09DK028 or 09DK034 coil from the 50/50% to
60/40% circuiting, perform the following steps:
1. Use a mini tubing cutter to remove specified parts:
a. Both
3
/
8
-in. diam tube nipples connecting the left
hot gas header to the coil. See Fig. 8, Item A.
b. The
3
/
8
-in. diam tube nipple connecting the left
liquid header to the coil. See Fig. 8, Item B.
c. Caps, where 2 are located on the right gas header,
and one is located on the right liquid header. See
Fig. 8, Item C.
2. Attach following specified parts contained in the parts
kit. Perform phos-copper brazing on all field-made
connections while protecting adjacent joints from heat.
a. Cap the open stub tubes on the left headers, where
two are located on the gas header, and one on the
liquid header. See Fig. 9, Item A.
b. Insert both 4
1
/
16
-in. length tube nipples into the
open stub tubes on the right side of the coil, con-
necting the gas header to the top row. See Fig. 9,
Item B.
c. Insert the 4
11
/
16
-in. length tube nipple into the
open stub tubes on the right side of the coil, con-
necting the liquid header to the bottom row. See
Fig. 9, Item C.
3. Install or replace filter-drier(s). Before charging the
system, install or replace filter drier(s) connected to
the liquid line near the indoor unit to prevent contami-
nation in the system.
B
C
A
C
B
A
C
A
Fig. 8 — Parts Removed from 09DK028,034 (50/50%) Unit for 60/40% Circuiting
Fig. 9 — Parts Added to 09DK028,034 Unit
(To Obtain 60/40% Circuiting)