Carrier 09DK Series Installation, Start-Up And Service Instructions Manual page 15

09DK044 40/13/13/34% Circuiting Modification — To con-
figure the 09DK044 for four refrigerant circuits (one with
40% capacity, two with 13% capacity, and one with 30%
capacity) using field supplied parts, perform the following
steps:
1. Remove all plastic caps. Refer to Fig. 17.
2. Attach following parts as shown in Fig. 17. Perform
phos-copper brazing on all field-made connections
while protecting adjacent joints from heat.
a. Plug the open 1 1 /
each of the large gas headers as shown in Fig. 17,
Item A. Parts required:
2 — 1 1 / -in. plug fittings
8
-in. stub tubes at the inside of
8
PLASTIC CAPS REMOVED FROM UNIT
FIELD-SUPPLIED PARTS ADDED TO UNIT
Fig. 17 — 09DK044 Unit with 40/13/13/34% Circuiting
b. Plug the open
each of the large gas headers as shown in Fig. 17,
Item B. Parts required:
2 — / -in. plug fittings
5
8
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.
A
B
15
5 / -in. stub tubes at the inside of
8