Daikin VRV III REYQ18PY1, Installation Manual

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15 English
(Refer to figure 30)
1. Measuring device
2. R410A tank (with siphon)
3. Charge hose
4. Equalizer pipe shutoff valve
5. HP/LP gas pipe shutoff valve
6. Suction gas shutoff valve
7. Liquid pipe shutoff valve
8. Refrigerant charge port
9. Valve A
10. Valve B
11. Valve C
12. Outdoor unit A
13. Outdoorunit B
14. Outdoor unit C
15. To BS, indoor unit
16. Field pipings
17. Refrigerant flow
18. Shutoff valve
19. Service port
4.
If the “additional charging amount” was charged fully, close the
valve B and go to step 7.
If the “additional charging amount” was not charged fully, close
the valve B and go to step 5.
5.
Perform the refrigerant charging operation following [Refrigerant
charging operation procedure] as shown below, and charge the
remaining refrigerant of the “additional charging amount”. For per-
forming the refrigerant charging operation the push button on the
PC-board (A1P) of outdoor unit (In case of multi system, master
unit) are use. (See the figure 29) In addition, the refrigerant are
charged from the refrigerant charge port via the valve A.
(See the figure 31)
For operating the push button and opening and closing the valve,
follow the work procedure.
Note
The refrigerant will be charged about 30kg in one hour at outdoor
temp. 30°C DB (12kg 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 31.
(Refer to figure 31)
1. Measuring device
2. R410A tank (with siphon)
3. Charge hose
4. Equalizer pipe shutoff valve
5. HP/LP gas pipe shutoff valve
6. Suction pipe shutoff valve
7. Liquid pipe shutoff valve
8. Refrigerant charge port
9. Valve A
10. Valve B
11. Valve C
12. Outdoor unit A
13. Outdoor unit B
14. Outdoor unit C
15. To BS, indoor unit
16. Field pipings
17. Refrigerant flow when charging
18. Shutoff valve
19. Service port
20. The refrigerant will be charged about 30kg in one hour at
outdoor temp. 30°CDB (12kg at 0°CDB). (According to
outdoor temp. or the refrigerant amount in the tank, the
charging rate may speed up). If you need to speed up in
case of multi system, connect the refrigerant tanks to
each outdoor unit.
[Refrigerant Charging Operation Procedure]
(1) Open the liquid pipe, suction gas pipe, HP/LP gas pipe and equal-
izer pipe shutoff valves (The valve A~C must be closed. The valve
A~C means the valves in the figure 31.)
(2) • Close the EL. COMPO. BOX lid and all front panel except on
the side of the EL. COMPO. BOX (*1) and turn the power to the
outdoor unit and all connected indoor units. (*2)
• After H2P stop blinking (about 12 minutes after turning on the
power), check LED displays as shown in Table : Display of nor-
mal system and the system is normal state.
If H2P is blinking, check the malfunction code in the remote
controller, and correct the malfunction in accordance with
[Remote controller display malfunction code] in chapter 11-2-2.
(*1) Lead the refrigerant charge hose etc from the pipe intake. All
front panels must be closed at the procedure (3).
(*2) • If you perform the refrigerant charging operation within the
refrigerant system that have the power off unit, the operation
cannot finish properly.
For confirming the number of the outdoor and indoor units with
the power on, see [How to check how many units are con-
nected] in chapter 11-1. In case of a multi system, turn on the
power to all outdoor units in the refrigerant system.
• To energize the crankcase heater, make sure to turn on for 6
hours before starting operation.
Table : Display of normal system
LED display:
h
...OFF,
i
...ON,
j
...Blinking
(*) How to distinguish the master unit, sub unit 1, and sub unit 2 in the
multi system.
(3) Charge the remained refrigerant by additional refrigerant charg-
ing operation of service mode.
About the method of additional refrigerant charging operation,
refer to the [Service Precaution] labe (lower) attached on the EL.
COMPO. BOX lid of the outdoor unit.
(Refer to figure 32)
1. EL. COMPO.BOX lid
2. Inspection door
3. [Service Precaution] label (upper)
4. [Service Precaution] label (lower)
(4) Close the valve A if the “additional charging amount” of refrigerant
was charged, and push the RETURN button (BS3) once.
6.
After completing the additional refrigerant charging, record the
charging amount on the accessory “REQUEST FOR THE INDI-
CATON” label (Installation records) and adhere it to the back side
of the front panel. Also, record the factory charged refrigerant
amount, additional refrigerant amount in the field and total refrig-
erant amount of the system to “ADDITIONAL REF. CHARGE”
label and adhere in the proximity of the refrigerant charge port.
About “ADDITIONAL REF. CHARGE” label, refer to [Important
information regarding the refrigerant used] in
“1-2 Special notice
of product” .
11-2-2 Procedure of check operation
• Check operation perform the following work. Do the check opera-
tion following below.
Otherwise, malfunction code “U3” will be displayed in the remote
controller and nomal operation can not be carried out.
„
Check of shutoff valve opening
„
Check of miswiring
„
Judgment of piping length
„
Check of refrigerant overcharge
Note
• Check operation can not carried out at outdoor temp. less than -5°C.
Perform the check operation at day or time that outdoor temp. is -5°C
or more.
[Check Operation Procedure]
(1) Close the EL. COMPO. BOX lid and all front panels except as the
side of the EL. COMPO. BOX and turn on the power to the out-
door unit and all connected BS, indoor units. (Be sure to turn the
power on at least 6 hours before operation in order to have power
running to the crank case heater.)
(2) Make the onsite settings as needed using the push button (BS1-
BS5) on the outdoor unit PC-board (A1P) with the power on. (See
“12 Onsite Settings” )
LED display
(Default status
of shipped)
SERV.
MONI-
TOR
MODE
TEST/
HWL
C/H SELECTOR
L.N.O.P
DEMA-
ND
MULTI
IND MASTER SLAVE
HAP H1P H2P H3P H4P H5P H6P H7P H8P
Single system
j h h i h h h h h
Multi
system
(*)
Master unit
j h h i h h h h i
Sub unit 1
j h h h h h h h j
Sub unit 2
j h h h h h h h h
Method 1 : By the H8P (MULTI) LED display
i
(ON) : Master unit
j
(Blinking) : Sub unit 1
h
(OFF) : Sub unit 2
Method 2 : By the transmission wiring to indoor unit
Transmission wiring is connected : Master unit
Transmission wiring is not connected : Sub unit 1 or Sub unit 2