Bryant 569J Installation, Start-Up And Service Instructions Manual page 15

Installation of liquid line moisture indicating sightglass in
each circuit is recommended. Locate the sightglass(es)
between the outlet of the filter drier and the TXV inlet.
Refer to Table 9 for recommendations on refrigeration
specialties.
TXV
INDOOR SENSING
COIL CKT BULB
AIRFLOW 15 DIAMS
10
MIN
DIAMS
8 DIAMS
MIN
Single Circuit Coil Piping Configuration
For single compressor condensing units
TXV
INDOOR SENSING
COIL CKT 2 BULB
15 DIAMS
AIRFLOW
10
MIN
DIAMS
8 DIAMS
MIN
TXV
SENSING
INDOOR
BULB
COIL CKT 1
15 DIAMS
AIRFLOW
10
MIN
DIAMS
8 DIAMS
Dual Circuit Coil Piping Configuration
For single compressor condensing units
Fig. 7 - - Location of Sight Glass(es) and Filter Driers
Typical 569J***A/B Systems
LIQUID LINE
SIZE (in.)
3
/
8
1
/
2
5
/
8
569J***D/E units require TWO sets of parts.
EQUALIZER LINE
SIGHT GLASS
A LOCATION
FILTER DRIER
A LOCATION
TXV
LIQUID LINE
SOLENOID
VALVE
EQUALIZER LINE
SIGHT GLASS
A LOCATION
TXV FILTER DRIER
CKT 2 A LOCATION
SIGHT
GLASSES
B LOCATION
FILTER
LIQUID LINE
DRIERS
SOLENOID
B LOCATION
VALVE
TXV
CKT 1
MIN
C10202
Table 9 – Refrigerant Specialties Part Numbers
LIQUID LINE
SOLENOID VALVE (LLSV)
EF680033
EF680035
EF680036
TXV
SENSING
BULB
AIRFLOW
15 DIAMS
10
MIN
DIAMS
TXV
SENSING
BULB
15 DIAMS
AIRFLOW
10
MIN
DIAMS
SUCTION
CIRCUIT 1
SUCTION
CIRCUIT 2
Dual Circuit Coil Piping Configuration
For two circuit condensing units
Fig. 8 - - Location of Sight Glasses and Filter Driers
Typical 569J***D/E Systems
In some applications,
convenience requirements, it may be desirable to install 2
filter driers and sight glasses in a single circuit
application. One filter drier and sight glass may be
installed at A locations (see Fig. 7) or 2 filter driers and
sight glasses may be installed at B locations (see Figs. 7
and 8).
Select the filter drier for maximum unit capacity and
minimum pressure drop. Complete the refrigerant piping
from the indoor unit to the outdoor unit before opening
the liquid and suction lines at the outdoor unit.
Install Liquid Line Solenoid Valve —
It is recommended that a solenoid valve be placed in the
main liquid line (see Figs. 7 and 8) between the condensing
unit and the evaporator coil. Locate the solenoid valve at the
outlet end of the liquid line, near the evaporator coil
connections, with flow direction arrow pointed at the
evaporator coil. Refer to Table 9. (A liquid line solenoid
valve is required when the liquid line length exceeds 75 ft
[23 m].) This valve prevents refrigerant migration (which
causes oil dilution) to the compressor during the off cycle, at
low outdoor ambient temperatures.
LLSV SIGHT
COIL GLASS
EF680037 KM680008
EF680037 KM680004
EF680037 KM680005
15
EQUALIZER LINE
TXV
CKT 2
8 DIAMS
MIN
SIGHT
GLASSES
LIQUID LINE
SOLENOID VALVE
FILTER
CIRCUIT 2
DRIERS
TXV
CKT 1
8 DIAMS
MIN
LIQUID LINE
SOLENOID VALVE
CIRCUIT 1
C10072
depending on space
FILTER
DRIER
provided with unit
see Table 8
and