19
|
Charging refrigerant
Installer and user reference guide
113
REMA5+REYA8~20A7Y1B
VRV 5 heat recovery
4P687640-1 – 2022.07
19.7 Error codes when charging refrigerant
If a malfunction occurs, close valve A immediately. Confirm the malfunction code
and take corresponding action,
"25.3 Solving problems based on error
160].
19.8 Checks after charging refrigerant
▪
Are all stop valves open?
▪
Is the amount of refrigerant, that has been added, recorded on the refrigerant
charge label?
NOTICE
Make sure to open all stop valves after (pre-) charging the refrigerant.
Operating with the stop valves closed will damage the compressor.
19.9 To fix the fluorinated greenhouse gases label
1
Fill in the label as follows:
b
Contains fluorinated greenhouse gases
2
1
1
1
2
2
kg
tCO
2
eq
GWP × kg
1000
=
=
+
kg
=
kg
=
GWP: XXX
RXXX
a
f
c
d
e
a
If a multilingual fluorinated greenhouse gases label is delivered with the unit (see
accessories), peel off the applicable language and stick it on top of
a
.
b
Factory refrigerant charge: see unit name plate
c
Additional refrigerant amount charged
d
Total refrigerant charge
e Quantity of fluorinated greenhouse gases
of the total refrigerant charge
expressed as tonnes CO
2
equivalent.
f
GWP = Global warming potential
NOTICE
Applicable legislation on
fluorinated greenhouse gases
requires that the refrigerant
charge of the unit is indicated both in weight and CO
2
equivalent.
Formula to calculate the quantity in CO
2
equivalent tonnes:
GWP value of the
refrigerant × total refrigerant charge [in kg] / 1000
Use the GWP value mentioned on the refrigerant charge label.
2
Fix the label on the inside of the outdoor unit near the gas and liquid stop
valves.
19.10 To check for refrigerant leaks after charging
All field made refrigerant joints must be tested for tightness.
