Iv-Refrigeration Piping (Interconnection) - Trane TRAE050 1C Installation Operation & Maintenance

Condenser Unit
To install remote condenser units, the
following precautions must be taken:
- The condenser unit must be placed in
a well ventilated area and comply with
the clearance recommendations.
- The length of interconnection line
between the evaporator unit and the
condenser unit should be as short as
possible;
- Do not reduce the line gauge;
- Avoid curves in the interconnection
lines;
- Do not install the condenser unit in
shafts or tunnels;
- The CU must be as close as possible
to a horizontal line.
- Pipes must be soldered with silver or
foscoper.
- Special care should be taken not to
cause any type of obstruction in the
pipes when soldering the lines. The
interconnection pipes must not be
dented. All soldering must be effected
with nitrogen circulating inside the pipes
to avoid carbonization
- When the interconnection lines are
ready, pressure test the system at 200
psig to check for leaks.
- Evacuate the whole system -
interconnection lines, evaporator and
condenser units.
- Carry out refrigerant charge.
8
IV-Refrigeration Piping
(Interconnection)
Instructions for Fixing the Expansion
Valve Thermostatic Bulb
- In the suction line, as closest as
possible to the evaporator output.
- Before external equalization, in an hori-
zontal line run.
EXPANSION VALVE
EQUALIZATION
SUCTION PIPE
OR SUCTION HEADER
THERMAL BULB
INSULATION
Tab. IV-01 - Tubing and connection gauges recommended by circuit
Connectio n gauge (in.)
C oil M od. TRA E/ TRCE
Line (To n) Liq Suct
5 1 /2" 7/8"
7,5 1 /2" 11 / 8"
1 0 5/ 8" 13/8"
1 2,5 5/ 8" 13/8"
1 5 7/ 8" 15/8"
20 7/ 8" 15/8" 11 / 8"
25 11 /8" 2 1/8" 11 / 8"
Note: For equivale nt lengths above the values indicated, please contact Trane or an authorized installer.
MOUNTING DIAGRAM
DRIER FILTER
DRIER FILTER -
Ø1/2" AN D Ø5/8 " THR EAD
WELD ED DRIER FILTER
Ø5/8 " Ø7/8 " Ø1.1 /8"
- The copper tube must be completely
clean.
- At the 12h position for pipes smaller
than 7/8", and 4h or 8h position for 7/8"
or larger pipes.
- Then insulate the pipes using thermal
sheets.
BULB
EVAPORATOR
COIL
Equivalent Tubing Lenght
6 m 6 to 1 2 m
Liq Suc t Liq Suct Liq
1/2" 7 /8" 1 /2" 7/8" 1/2"
1/2" 11/8" 1 /2" 11 / 8" 1/2"
5/8" 13/8" 5/8" 13/8" 5/8"
5/8" 13/8" 5/8" 13/8" 5/8"
7/8" 15/8" 3/4" 15/8" 3/4"
15/8" 7/8" 15/8" 7/8"
2 1 /8" 11 /8" 2 1/8" 11/8"
DRIER FILTER AND LIQUID SIGHT GLASS
LIQUID SIGHT GL ASS
WITH HUMIDITY INDICATOR
DRIER FILTER -
Ø1/2" AN D 5/8 " THR EAD
WELD ED DRIER FILTER
Ø5/8"Ø7/8"Ø1.1/8"
Welded filter Ø5/8"
only for 250 model
TRAE/TRCE
BULB FIXED AT 12h POSITION
FOR PIPES UP TO Ø3/4"
AND 4h POSITION OR 8h POSITION
FOR Ø7/8'' PIPES AND LARGER
12h 8h 4h
1 2 to 23 m 23 to 46 m
Suct Liq Suct Liq Suct
7/ 8" 1 / 2" 11 / 8" 5/8" 11 /8"
11/8" 5/8" 11 / 8" 3/4" 13/ 8"
13/ 8" 5/8" 13/8" 3/4" 15/ 8"
13/ 8" 3/4" 15/8" 7/8" 15/ 8"
15/ 8" 3/4" 15/8" 7/8" 2 1 / 8"
15/ 8" 7/8" 15/8" 7/8" 2 1 / 8"
2 1 / 8" 11 /8" 2 1/8" 11/8" 2 5/8"
MOUNTING DIAGRAM
Welded filter Ø5/8"
only for 250 model
SSC-SVN008E-EN