Toyotomi CTN/CTG-328W User Manual page 48

2. Remove the screw cap of valve and aim
the pipe joint at the bellmouth of pipe.
3. Pretighten the union nut with hand.
4. Tighten the union nut with torque wrench by referring to the sheet below.
Hex nut diameter
1/4''
3/8''
1/2''
5/8''
3/4''
Step 5: 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 colour, fi x them with screws.
Tightening torque(N . m)
15~20
30~40
45~55
60~65
70~75
48
liquid pipe
liquid gas pipe
valve
gas valve
pipe joint
union nut
GB