Haier AC12CS1ERA Operation Manual page 17

Installation Procedure
CONNECTING THE PIPING
1. Flare processing
(1) Cut the connection pipe with pipe cutters so that the
pipe is not deformed.
(2) Holding the pipe downward so that cuttings cannot
enter the pipe, remove the burrs.
(3) Remove the flare nut from the indoor unit pipe and
outdoor unit and assemble as shown in Table1 and
insert the flare nut onto the pipe, and flare with a
flaring tool.
(4) Check if the flared part "L" (Fig.1) is spread uniformly
and that there are no cracks.
Model Pipe
Liquid pipe
AC12CS1ERA
Gas pipe
Liquid pipe
AC18CS1ERA
Gas pipe
Liquid pipe
AC24CS1ERA
Gas pipe
2. Bending pipes
The pipes are shaped by your hands. Be careful not to
collapse them.
ELECTRICAL WIRING
Connect wiring to the terminal blocks
A. For solid core wiring (or F-cable) (Fig.A)
(1) Cut the wire with a wire cutter or wire-cutting pliers, then strip the insulation to about 25mm of the exposed solid wire.
(2) Using a screwdriver, remove the terminal screw(s) on the terminal board.
(3) Using pliers, bend the solid wire to form a loop suitable for the terminal screw.
(4) Shape the loop wire properly, place it on the terminal board and tighten securely with the terminal screw using a screw
driver.
B. For strand wiring (Fig.B)
(1) Cut the wire with a wire cutter or wire-cutting pliers, then strip the insulation to about 10mm of the exposed strand wiring.
(2) Using a screwdriver, remove the terminal screw(s) on the terminal board.
(3) Using a round terminal fastener or pliers, securely clamp a round terminal to each stripped wire end.
(4) Position the round terminal wire, and replace and tighten the terminal screw using a screw driver.
A. Solid wire
Insulation
Fix connection cord and power cable at the cord clamp
After passing the connection cord and power cable through the insulation tube,
fasten it with the cord clamp, as shown right.
Use VW-1, 0.5 to 1.0 mm thick, PVC tube as the insulation tube.
Diameter of pipe Dimension A (mm)
6.35mm (1/4")
1.0~1.2
9.52mm (3/8")
6.35mm (1/4")
1.0~1.2
12.7mm (1/2")
9.52mm (3/8")
1.4~2.2
15.88mm (5/8")
B. Strand wire
Loop
Screw with
special washer
Round
terminal
Round
terminal
Wire
15
Table 1
Pipe Flare nut
Small pipe Small (width across flats 22mm)
Large pipe Large (width across flats 24mm)
Fig.1
Width across flats
L
A
Pipe expander
OK
Extend the pipe by unwinding it
Terminal
Wire
board
Insulation tube
L dimension
NO
Screw with
special washer
Round
terminal
Cord clamp