11
TTK-SVN001-EN
Finishing & Run Tests
Finishing
1. Insulate the entire piping of
gas line and liquid line with
proper pipe heat insulation to
prevent heat loss and any
condensate water drops over
surrounding materials which
could be damaged
(Figure 13).
2. Securely wrap the insulated
pipes with vinyl tape.
(Starting at the lowest end of
the pipes, each wrap should
be about 1/3 of the tape
width so that water does not
enter). It is possible to bind
into a single bundle the
refrigerant lines and the
interconnecting wiring
between the units (Figure 14
and Figure 15).
3. Secure the insulated pipes to
the outside wall with clamps,
etc.
Note:
• Do not try to bend the tube
after installation.
• The pressure tap on the
service valve of suction line
can be used to measure:
- an intake pressure on a TTK
/ TWK in cooling mode.
- a discharge pressure on a
TWK in heat pump mode.
Run Tests
Check the system before start up.
Once the unit is installed, a check
of the system is recommended
before starting the units.
Warning
• Never open the unit without
having previously cut the
power supply.
Electrical shock can cause
personal injury or death
• Do not stand on the unit.
1. Check that field connections
are correctly made.
2. Check that units are correctly
installed and there is no tool
or debris near or on top of
the unit.
3. Check the tubing and the
connections for leaks.
4. Check that unit has a proper
ground wiring.
5. Check for proper voltage and
fuse size.
6. Check electrical wire size
used is as specified.
7. Check all field wiring for tight
connection.
8. Make sure that electrical
wires inside the unit do not
contact with refrigerant pipes.
9. Check the fan rotates freely.
Start the system and check items
1 through 3 below.
For the system start procedure,
refer to the Owner’s Manual for the
indoor evaporator unit.
Outdoor Unit
1. Is there any abnormal noise
and vibration during
operation?
2. Will noise, air flow, or drain
water from the unit disturb
the neighbors?
3. Is there any refrigerant gas
leakage?
4. Give the installation
instruction to the customer.
Remark:
Filter driers are not
provided with condensing units
according to Trane Standard,
Installers should install filter driers
into the systems at the job site.
Pipes insulation
Figure 13
Insulation
Minimum thickness 6 mm
Pipes bundle
Figure 14
Figure 15
Indoor unit
pipe (heat
insulation)
Pipe
insulation
Connection
pipe (heat
insulation)
(Vinyl tape)
Layout
14/1/03, 10:16 AM
11
Black
