Toyotomi UTN/UTG-09AP User Manual page 90

3. Pretightening the union nut with hand.
4. Tighten the union nut with torque wrench by referring to the sheet below.
Step fi ve: Connect outdoor electric wire
1. Remove the wire clip; connect the power connection wire and signal control
wire (only for cooling and heating unit ) to the wiring terminal according to
the color; fi x them with screws.
Hex nut
diameter
1/4''
3/8''
1/2''
5/8''
3/4''
9K, 12K,
Blue Black Brown
Indoor unit connection
17Κ, 21Κ
N(1) 2 L(3)
Yellow
Blue Black Brown
green
Indoor unit connection
90
pipe joint
Tightening
torque (Ν-m)
15~20
30~40
45~55
60~65
70~75
Yellow
green
Brown (Black)
L
Blue
N
Yellow
POWER
Green
-
Brown
Yellow
Blue
(Black)
green
N L
POWER
union nut
GB