6
CONNECT REFRIGERANT LINES Connect the ends of
the refrigerant lines to their appropriate fittings, following these
guidelines:
To connect the refrigerant lines use only L type sealed,
dehydrated copper refrigerant tubing. No other type of tubing
may be used. Use of other types of tubing will void the manu-
facturers warranty.
Do not open service valves or remove protective caps from
tubing ends until all the connections are made.
Take care to avoid kinks or flattening of the tubing.
Bend tubing with special bending tools to avoid the forma-
tion of sharp bends.
Keep the tubing free of dirt, sand, moisture and other con-
taminants to avoid damaging the refrigerant system.
Avoid sags in the suction line to prevent the formation of oil
traps.
Insulate both refrigerant lines separately with
3
/
8
-in. walled
thermal pipe insulation. Inserting the tubing into the insulation
before making the connections can save time and improve in-
sulation. The suction and mixed phase lines should never come
in direct contact.
ATTACH THE REMOTE CONTROLLER RACK
1. Use the two screws supplied with the controller to attach
the rack to the wall in the location selected by the custom-
er (see Fig.
10
).
2. Install batteries in the remote control.
3. Place remote control into remote control rack.
4. For remote control operation, refer to the unit Owners
Manual.
Outdoor Unit Installation
NOTE: The outdoor unit must be installed on a solid surface
(mounting base).
1. Place the rubber absorption cushions (supplied with the
outdoor unit) under the units
feets
to prevent vibrations.
2. Fasten the outdoor unit legs to the mounting base, as
shown in Fig. 12. The cushion goes between the legs and
the mounting base.
3. Be sure that the unit is
leveled.
MAKE REFRIGERANT PIPING CONNECTIONS (OUT-
DOOR UNIT) To connect the refrigerant lines:
Use only L type sealed, dehydrated copper refrigerant
tubing. No other type of tubing may be used. Use of other types
of tubing will void the manufacturers warranty.
Do not open service valves or remove protective caps from
tubing ends until all the connections are made.
Bend tubing with special bending tools to avoid the forma-
tion of sharp bends. Take care to avoid kinks or flattening of
the tubing.
Keep the tubing free of dirt, sand, moisture, and other con-
taminants to avoid damaging the refrigerant system.
Avoid sags in the suction line to prevent the formation of oil
traps.
Insulate each tube with
3
/
8
-in. walled thermal pipe insula-
tion. Inserting the tubing into the insulation before making the
connections will save time and improve installation
The suction and mixed-phase lines should never come in direct
contact.
Fig. 10 Attach Rack to the Wall
POWER SUPPLY
TERMINAL BLOCK
HIGH/LOW
VOLTAGE METAL
BARRIER
TH3
(HEAT PUMP ONLY)
METAL
CONDUIT
CONNECTION
PLATE
POWER SUPPLY CABLE
INTER UNIT CABLE
4 ABSORPTION CUSHION TO
BE PUT UNDER EACH
INTER UNIT
TERMINAL BLOCK
Fig. 11 Wall Mounted Unit - RTX
(OPTIONAL)
SENSOR
FEET
NADA001TW
L2 L1
280-230 VAC
1
2
3
4
5
24 V
AC
FAN (H)
FAN (L)
R.V.S
COMP.
COMMON
L2 L1
208-230 VAC
1
2
3
4
5
6
24 V
AC
FAN (H)
FAN (L)
R.V.S
COMP.
COMMON
1
2
3
4
5
24 V
AC
FAN (H)
FAN (L)
R.V.S
COMP.
COMMON
REMOTE CONTROL
REMOTE CONTROL RACK
TURBO-JET
ECONOMY
Models: DFC2A/H 12, 18
Fig. 12 --- Legs Mounting Base and Wiring
Outdoor Units
