Hot Gas Bypass - Carrier Aero 39MN Series Installation, Start-Up And Service Instructions Manual

When low-load operation requires
Hot Gas Bypass —
use of hot gas bypass, hot gas must be introduced between ex-
pansion valve and distributor.
Install auxiliary hot gas bypass side connector (field-sup-
plied) in coil split that is first-on, last-off.
NOTE: See Table 34 for auxiliary side connector sizes. Do
not attempt to use a valve that is smaller or larger than dis-
tributor size. Inserting a bushing at the outlet will defeat the
purpose of the internal nozzle tube extension.
SPORLAN CARRIER
TYPE PART NO.
INLET — ODM SOLDER OUTLET — ODF SOLDER AUXILIARY — ODF SOLDER
ASC-5-4 —
ASC-7-4 EA19BA504
ASC-9-5 EA19BA705
ASC-11-7 EA19BA905
ASC-13-9 —
DIMENSIONS (in.)
SPORLAN
A B
TYPE
ASC-5-4
5 / ODM 5 / ODF
8 8
ASC-7-4 7 / ODM 7 / ODF
8 8
ASC-9-5 1 1
1 / ODM 1 /
8 8
ASC-11-7
1 3 / ODM 1 3 /
8 8
ASC-13-9 1 5 / ODM 1 5 /
8 8
LEGEND
ODF — Outside Diameter, Female
ODM — Outside Diameter, Male
Fig. 101 — Distributor and Hot Gas Bypass Auxiliary Side Connector
Table 34 — Auxiliary Side Connector (Hot Gas Bypass) Data
CONNECTION SIZES (IN.)
5
/
8
7
/
8
1 1 /
8
3
1 /
8
1 5 /
8
C D E F
1.88 0.95 1.25 1 / ODF
2
2.25 1.06 1.38 1 / ODF
2
5
ODF 2.81 1.47 1.62 / ODF
8
ODF 3.53 1.89 2.19 7 / ODF
8
ODF 3.72 1.83 2.75 1 1 /
8
Install the side connector as follows:
1. Remove distributor nozzle and retainer ring (area A)
from distributor and reinstall in inlet (area B) of side
connector. See Fig. 101.
2. Solder field-supplied extension nipple to coupling on
distributor, then to side connector outlet, using a silver
solder or equivalent with a melting point of 1300 to
1500 F. Extension nipple should be as short as possi-
ble.
3. Solder expansion valve outlet to side connector using
95-5 tin-antimony soft solder, for easy removal.
4. If required, install field-supplied adapter bushing or
coupling to connector inlet before soldering to expan-
sion valve outlet.
5 1
/ /
8
7 1
/ /
8
1 1 / 5 /
8
3 7
1 / /
8
1 5 / 1 1
8
ODF
a39-2994ef
DISTRIBUTOR
DISCARD CAP
WITH TESTPORT
130
USED WITH SPORLAN
DISTRIBUTOR TYPE
1620, 1622
2
1112, 1113
2
1115, 1116
8
1117, 1126
8
/ 1125, 1127, 1143
8
SIDE
CONNECTOR
NOZZLE
SIZE
J
G
E
C
A
a39-
2040tf