Daikin REYQ8-48PY1B, Service Manual

Page: 174 / 477

Test Operation SiBE37-701_B
163 Test Operation
[Special notice of product]
CLASSIFICATION
This air conditioner comes under the term “appliances not accessible to the general public”.
EMC CHARACTERISTICS
VRVIII System is a class A product. In a domestic environment this product may cause radio
interference in which case the user may be required to take adequate measures.
REFRIGERANT
VRVIII System use R-410A refrigerant.
z
The refrigerant R-410A requires strict cautions for keeping the system clean, dry and tight.
Read the chapter “REFRIGERANT PIPING” carefully and follow these procedures correctly.
A. Clean and dry
Foreign materials (including mineral oils such as SUNISO oil or moisture) should be
prevented from getting mixed into the system.
B. Tight
Take care to keep the system tight when installing.
R-410A does not contain any chlorine, does not destroy the ozone layer, and does not
reduce the earth’s protection against harmful ultraviolet radiation.
R-410A can contribute slightly to the greenhouse effect if it is released.
z
Since R-410A is a mixed refrigerant, the required additional refrigerant must be charged in
its liquid state. If the refrigerant is charged in a state of gas, its composition changes and the
system will not work properly.
Limit by the total maximum refrigerant charge
The total maximum refrigerant charge of a VRVIII system must be below 100kg, this to be in
accordance with CE requirement (EN60335-2-40 standard).
This means that in case the total maximum refrigerant charge of the system (factory and
additional charge) is equal to or more than 100kg you must divide your multiple outdoor system
into smaller independent systems, each containing less than 100kg refrigerant charge.
For factory charge, refer to the unit name plate.
Important information regarding the refrigerant used
This product contains fluorinated greenhouse gases covered by the Kyoto Protocol. Do not vent
gases into the atmosphere.
Refrigerant type : R-410A
GWP
(1)
value : 1975
(1)
GWP = global warming potential
Please fill in with indelible ink,
„
(1) the factory refrigerant charge of the product,
„
(2) the additional refrigerant amount charged in the field and
„
(1) + (2) the total refrigerant charge on the refrigerant charge label supplied with the product.
The filled out label must be adhered in the proximity of the product charging port (e.g. onto
the inside of the service cover).
(2)
In case of multiple outdoor systems, only 1 label must be adhered, mentioning the total
factory refrigerant charge of all outdoor units connected on the refrigerant system.
DESIGN PRESSURE
Since design pressure is 4.0MPa (for R-407C units : 3.3MPa), the wall thickness of pipes should
be more carefully selected in accordance with the relevant local and national regulations.
1 factory refrigerant charge of the
product : see unit name plate
(2)
2 additional refrigerant amount
charged in the field
3 total refrigerant charge
4 Contains fluorinated greenhouse
gases covered by the Kyoto Protocol
5 outdoor unit
6 refrigerant cylinder and manifold for
charging
-
(1)
(1)
(1) (2)
(2)
(2)
Contains fluorinated greenhouse gases
covered by the Kyoto Protocol
4
1
2
3
5 6