Panasonic U-72MF2U9 Technical Data Manual page 76

8. Optional Parts
8-4-5-4. Procedure
1. Connect the power supply wire to the solenoid valve kit, using
Ⅰ
the Class wire. (Fig. 8)
2. Connect the solenoid valve kit to the solenoid valve relay kit,
using the Class
3. Connect the solenoid valve relay kit to the indoor unit, using
the supplied connecting wire. (Fig. 6, Fig. 7)
4. The left-over wires connected to the solenoid valve relay kit
should be tied up in a bundle of wires by the supplied wire
holder not to leave the wires loose as shown in the diagram
at right. (Fig. 7)
Ground
1
2
Ⅰ
Class
Power supply
(field supplied)
Conduit
(field supplied)
3
NOTE
Insert the power supply wiring and ground wire through
the conduit.
How to connect wiring to the terminal
4
■
For stranded wiring
(1) Cut the wire end with cutting pliers, then strip the insulation to expose the stranded wiring about 25/64" (10 mm) and
tightly twist the wire ends. (Fig. 9)
(2) Using a Phillips head screwdriver, remove the terminal screw(s) on the terminal board.
(3) Using a ring connector fastener or pliers, securely clamp each stripped wire end with a ring pressure terminal.
5
(4) Place the ring pressure terminal, and replace and tighten the removed terminal screw using a screwdriver. (Fig. 10)
Stranded wire
Ring
pressure
terminal
6
Fig. 9
7
CAUTION
8-4-5-5. Installation to the Solenoid Valve Relay Kit
Install the solenoid valve relay kit into the indoor unit and fix it using a Philips-head screwdriver.
8
WARNING
*
Regarding the solenoid valve relay kit, refer to the indoor unit Installation Instructions.
9
Ⅱ
wire shown in Table 21. (Fig. 7, Fig. 8)
Solenoid valve kit
* Wiring fixed with clamper
Fig. 8
Special
washer
Wire
Loose wiring may cause the terminal to overheat or result in unit malfunction.
A fire hazard may also occur.
Therefore, ensure that all wiring is tightly connected.
● Do not install outside the building and the area where the water is splashed. Failure to do
so could result in product or property damage.
● Do not handle or touch the unit with wet hands. Failure to do so could result in electric shock.
Ⅱ
Class
Control wire
(field supplied)
* Wiring fixed with clamper
Screw
Ring pressure
terminal
Terminal board
Fig. 10 Wire
2 - 60
Design of 3WAY VRF SYSTEM
Solenoid valve relay kit
Ⅱ
Class
3-Way connect wire
(supplied)
Class Ⅱ
Control wire
(field supplied)
1 2 3 4 5
* Wiring fixed with clamper
Fig. 7
Clamper
(supplied)
Wire
Clamper
Screw and
Special washer
Ring
pressure
terminal