Daikin VRVIII-Q Series Installation Manual page 21

3.
Open the valve C (See the figure 31. The valve A, B and the liquid
and gas side shutout valve must be left closed), and charge the
refrigerant of the "additional charging amount" from the liquid side
shutout valve service port.
If the "additional charging amount" was charged fully, close the
valve C and go to step 4.
If the "additional charging amount" was not charged fully, go to
step 4.
(Refer to figure 31)
1. Measuring device
2. R410A tank (with siphon)
3. Charge hose
4. Liquid side shutoff valve
5. Gas side shutoff valve
6. Shutoff valve service port
7. Valve B
8. Valve C
9. Valve A
10. Outdoor unit
11. Refrigerant charge port
12. To indoor unit
13. Field pipings
14. Refrigerant flow
(Refer to figure 35)
1. R410A
2. Tank
3. (Siphon method)
4. Charging tube
5. Valve A
6. Gas side
7. Liquid side
8. Outdoor unit
9. To indoor unit
10. Slave unit
11. Rerigerant charging port
12. Stop valve service port
13. Scale
14. Shows field pipings
• Use a charging tube with a pushing projection (at the connecting
end) to connect the refrigerant charging port mounted to the shut-
off valve fixing plate.
• Please be careful not to leak refrigerant when connecting the
charging tube.
Refrigerant charging port is mounted to internal pipings of the
product, in which refrigerant is already charged by the manufac-
turer.
Liquid side shutoff valve
open
4.
Perform the refrigerant charging operation according to [check
operation], and charge the remaining refrigerant of the "additional
charging amount". For performing the refrigerant charging opera-
tion the push button on the PC-board (A1P) of outdoor unit
(Incase of multi system master unit) are use. (See the figure 32) In
addition, the refrigerant are charged from the refrigerant charge
port via the valve A. (See the figure 33)
For operating the push button and opening and closing the valve,
follow the work procedure.
Note
The refrigerant will be charged about 22kg in one hour at outdoor
temp. 30°C DB (6kg at 0°C DB).
If you need to speedup in case of multi system, connect the refriger-
ant tanks to each outdoor unit as shown in the figure 33.
(Refer to figure 32)
1. EL.COMPO.BOX lid
2. Pipe intake
3. Inspection door
4. Label "Service Precaution"
5. LED (H1~8P)
6. Push button (BS1-5)
7. Lift the protruding part to open the cover
(Refer to figure 33)
1. Measuring device
2. R410A tank (with siphon)
3. Charge hose
4. Liquid side shutoff valve
5. Gas side shutoff valve
6. Shutoff valve service port
7. Valve B
8. Valve C
English
Gas side shutoff valve
open
9. Valve A
10. Outdoor unit
11. Refrigerant charge port
12. Field piping
13. Refrigerant flow
14. To indoor unit
15. In case of multi system if you need to speedup.
5.
Make certain you have fully completed the supplied CHECK LIST
OF INSTALLED SYSTEM, and then sign your signature.
16