7
2. Insert tube in flare tool to measurement “A” in chart.
Flare tubing as shown in Figure 19. Make sure flare is
free of burrs and completely formed to make a leak proof
joint.
NOTE: In order to avoid dropping burrs into the tubing,
angle the end of the copper tube/pipe in a downward
direction as you remove the burrs.
Pipe
Reamer
Point down
Figure 17
Flare nut
Copper tube
Figure 18
4. Flare Connections: Firmly hold the copper pipe in a die
with the dimensions as in the following table.
Max. Min.
MS* 09 & 12 1/4" (Φ 6.35) 3/64" (1.3) 1/32" (0.7)
MS*09 3/8" (Φ 9.52) 1/16" (1.6) 3/64" (1.0)
MS*12 1/2" (Φ12.7) 1/16" (1.8) 3/64" (1.0)
A (inches & mm)
Outdoor
Diameter
(inches & mm)
Model
Bar
Copper pipe
Clamp handle Red arrow mark
Cone
Yoke
Handle
Bar
"A"
Figure 19
5. Tightening the connection:
• Align the center of the pipes and finger-tighten the flare
nut. Using a spanner and torque wrench (Figures 20 &
21) continue tightening the flare nut until the nut is firmly
on the pipe.
1/4" (Φ 6.35) 1500
(153kgf.cm)
1600
(163kgf.cm)
3/8" (Φ 9.52) 2500
(255kgf.cm)
2500
(265kgf.cm)
1/2" (Φ12.7) 2500
(255kgf.cm)
3600
(367kgf.cm)
Outdoor
Dia meter (mm)
Tightening
Torque
(N. cm)
Additional
Tightening
Tor que (N. cm)
Figure 20
Figure 21
Do not ov er-tighten. Excessive torque can
break the nut and/or crimp the pipe.
Electrical
HI GH V O LTAGE !
Di sco nne ct ALL power befo re se rvic in g or
ins ta lli ng thi s unit . Mul t ip le po wer s our ce s
may b e p r es en t. Fa i lu re to do so may ca us e p rope rt y
damag e, pe rsona l in jury or d eath due t o e lect ri c sho ck.
Wiri ng mus t c onform wi th NEC or CEC a nd al l l oc al
code s. U nders iz ed w ir es coul d c au se poo r equi pme nt
perf orma nce , equi pmen t d amage or fi re .