56
Prompt:
The refrigerant charging method must be in compliance with specifications provided in the above table.
Ensure that the total additional refrigerant charge of the system not exceed the maximum refrigerant
charge as shown in the table below. If the calculated value of the additional charge of the refrigerant
exceeds the range shown in the table below, the total length of the piping construction plant should
be shortened and the additional charge of the refrigerant should be recalculated to meet the following
requirements:
<Maximum supplementary refrigerant charging amount>
HP
8-10
12
14-24
26-66
68-88
90-96
Maximum refrigerant
additional charge (kg)
28
36
40
63
73
93
2. Charging operation:
The refrigerant R410A is charged in to the system as
required by chapter 8.4.
3. Record the refrigerant charge volume:
The total refrigerant charge is calculated according to the
following formula:
Total refrigerant charge = W + Wo
This system =
+
=
kg
Outdoor Unit
The outdoor
unit is
shipped with
refrigerant
charge ( Wo)
kg
JVOH080VPEMBQ
5.0
JVOH100VPEMBQ
5.0
JVOH120VPEMBQ
7.2
JVOH140VPEMBQ
8.9
JVOH160VPEMBQ
9.9
JVOH180VPEMBQ
10.7
JVOH200VPEMBQ
11.3
JVOH220VPEMBQ
11.3
JVOH240VPEMBQ
12.6
The additional total amount of refrigerant : W
kg
Total amount of refrigerant:
kg
Charge date:
year /
month /
day
Note:
●
Wo is the refrigerant charging amount at factory.
●
With the base module combination, need to calculate the total refrigerant charging amount at factory for each combination of
base modules.
8.4 Charging Operation
After completion of vacuum pumping, check to ensure that the liquid side stop valve is completely
closed.
Refer to Table 8.1 and the corresponding refrigerant quantities are charged at the liquid side stop valve
check joint (the permissible refrigerant quantity tolerance is less than 0.5 kg).
If you cannot charge the specified amount of refrigerant, follow the steps below:
(1) Completely open the gas side stop valve (refer to 6.4.5).
(2) Ensure that the unit is in cooling operation and the refrigerant is added from the liquid side stop
valve detection joint. Liquid side stop valve should be slightly open (permissible refrigerant quantity
tolerance is 0.5 kg).
(3) After charging the refrigerant, completely open the liquid side stop valve and the gas side stop valve.