Trane ODYSSEY TTA 051 JDF, Установка, эксплуатация и обслуживание

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TTA-R410A 7
Refrigerant Piping Guidelines
Refrigerant Piping
To ensure the return of oil in the
refrigerant lines, it is necessary to
follow these recommendations:
1. Select the tube lengths with care
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meters of tube to use up. Refer to
table 2 for tube sizes.
2. Pitch all horizontal suction lines
down towards the unit to assist
gravity oil drainage back to the
compressor.
3. Avoid creating large oil traps in
horizontal suction lines as this will
reduce oil circulating in the system
and may eventually lead to failure
of the compressor.
4. A small oil trap at the end of a
horizontal suction line before a long
vertical riser (of more that 2.5
metres) has the advantage of
assisting the high velocity gas to
carry the oil up the vertical pipe.
5. Liquid lines require no special
installation techniques as the liquid
refrigerant R-22 and the oil mix.
The densities of the refrigerant and
oil are near enough the same so
any movement of liquid refrigerant
will carry oil with it.
6. The installation of a liquid line
sight is recommended. It is very
useful during the maintenance
procedures.
Refrigerant Piping Guidelines
A. Maximum recommended line
lengths: (per circuit)
Maximum linear length
200 Ft.
(W/o accumulator)
Maximum suction line lift 60 Ft.
Maximum liquid line lift 60 Ft.
B. Maximum allowable pressure
drops (R410A):
Suction line
14 psi.
Liquid line 65 psi.
(without subcooler)
Route refrigerant piping for
minimum linear length,
minimum number of bends and
¿WWLQJVQR reducers) and minimum
amount of line exposed to outdoor
ambients.
C. Recommended line sizes:
TTA 150-200 (Dual Circuit)
TTA B51-B65 (Single Circuit)
TTA 075-100 (Single Circuit)
Suction line
Liquid line
1 1/8 inch sealed type L
refrigerant tubing.
1/2 inch sealed type L
refrigerant tubing.
D. Recommended line sizes:
TTA 120 (Single Circuit)
TTA 240 (Dual Circuit)
Suction line
Liquid line
1 3/8 inch sealed type L
refrigerant tubing.
1/2 inch sealed type L
refrigerant tubing.
E. Recommended line sizes:
TTA 150 (Single Circuit)
TTA 150-240 (Manifolded Compressor)
Suction line
Liquid line
1 5/8 inch sealed type L
refrigerant tubing.
5/8 inch sealed type L
refrigerant tubing.
Figure 1
Note: Insulate all refrigerant piping
and connections.
TUBE CONNECTON
CAP
CHARGING
PORT
CAP VALVE PORT
BODY (FORGED)
TUBE CONNECTON
O - RING
O - RING
SEAL
PLUNGER
VALVE CORE
TTA B65 JDF 1/2 7/8 1/2 7/8 1/2 7/8 1/2 1 1/8
TTA 100 JDF 1/2 1 1/8 1/2 1 1/8 1/2 1 1/8 1/2 1 1/8
TTA 120 JDF 1/2 1 3/8 1/2 1 3/8 1/2 1 3/8 1/2 1 3/8
TTA 150 JD00 1/2 1 1/8 1/2 1 1/8 1/2 1 1/8 1/2 1 1/8
TTA 180 JD00 1/2 1 1/8 1/2 1 1/8 1/2 1 1/8 1/2 1 1/8
TTA 200 JD00 1/2 1 1/8 1/2 1 1/8 1/2 1 1/8 1/2 1 1/8
TTA 240 JD00 1/2 1 3/8 1/2 1 3/8 1/2 1 3/8 1/2 1 3/8
TTA 150 JD00 5/8 1 5/8 5/8 1 5/8 5/8 1 5/8 5/8 1 5/8
TTA 150 JDF 5/8 1 5/8 5/8 1 5/8 5/8 1 5/8 5/8 1 5/8
TTA 180 JD0G 5/8 1 5/8 5/8 1 5/8 5/8 1 5/8 5/8 1 5/8
TTA 200 JD0G 5/8 1 5/8 5/8 1 5/8 5/8 1 5/8 5/8 1 5/8
Table 2 - Recommended Interconnecting Lines
Notes: 1. Two line sets are required for dual circuits units.
2. For line lengths over 80 linear feet and 15 feet liquid line riser,
consult your local Trane representative.
Length of Interconnecting Line (feet)
0-20 21-40 41-60 61-80
Liq. Suct. Liq. Suct. Liq. Suct. Liq. Suct.
TTA B51 JDF 1/2 7/8 1/2 7/8 1/2 7/8 1/2 7/8
TTA 075 JDF 1/2 1 1/8 1/2 1 1/8 1/2 1 1/8 1/2 1 1/8
Model
TTA 240 JD0G 5/8 1 5/8 5/8 1 5/8 5/8 1 5/8 5/8 1 5/8