Preparation - Daikin Service Checker TYPE 3.1 Instruction Manual

Prepare the following
(1) Personal computer with the following specifications.
PC type :
MS Windows base PC
OS :
Windows 95/98/98SE/NT4.0/Xp/Vista/7 (32bit)
Serial Port :
RS-232C or USB-RS232C / PC card-RS232C adapter
(2) If the Checker TYPE 3 is connected to DIII-NET terminal for VRV-system air conditioners for
building, make up DIII-NET connecting cables as follows.
Procedures
Prepare the following signal wires. (Refer to the below notes.)
When connecting to an outdoor unit, it is appropriate for the signal wires to have 2 m in
length. When connecting to an indoor unit or wiring indoor from the outdoor unit, it is
possible to lengthen the signal wires within the limits of the DIII-NET length.
For control signal wiring, use vinyl cords or cables with two-core and sheathed as follow.
Vinyl cabtyre cylindrical cord
Vinyl-insulated vinyl sheathed cable for control
Vinyl-insulated vinyl sheathed, cylindrical cable for control CVS
Vinyl-insulated vinyl sheathed, cylindrical cable
600V vinyl cabtyre cable
(Note) Please do not use shielded cable.
Cautions:

Preparation

1. Do not use multiple-cored wires with 3 cores or more.
2. Use wires with a cross section of 0.75mm
3. Do not make wires bound in control- signal wiring. Do not make
long-distance wiring by having signal wires bound packed with tapes,
tie-laps and the like.
4. Wire the signal wires away from power lines to prevent the effects of
electric noise. Since Daikin's air conditioners and related products will
generate much lower electric noises, it allows to have a distance of
minimum 50mm between the power lines and the control signal wires.
2
-
- 5 -
VCTF JISC3306
CVV JISC3401
JISC3401
VVR JISC3342
VCT JISC3312
2
1.25mm
.