Daikin RZQ71D7V1B, Installation Manual

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Installation manual
5
RZQ71~14 RZQ7 RZQ100~140B8W1B
Split System air conditioners
4PW48323-1B
2. In case of installing multiple units (2 units or more) in lateral
connection per row.
Relation of dimensions of H, A and L are shown in the table below.
R
EFRIGERANT PIPE SIZE AND ALLOWABLE PIPE
LENGTH
Selection of piping material
■
Piping and other pressure containing parts shall comply with the
national and international codes and shall be suitable for
refrigerant, use phosphoric acid deoxidised seamless copper for
refrigerant.
■
Temper grade: use piping with temper grade in function of the
pipe diameter as listed in table below.
■
The pipe thickness of the refrigerant piping should comply with
relevant local and national regulations. The minimal pipe
thickness for R410A piping must be in accordance with the table
below.
O=Annealed
1/2H=Half hard
Only use annealed material for flare connections.
Refrigerant pipe size
Refer to figure 3 for twin system, to figure 4 for triple system and to
figure 5 for double twin system.
■
Main pipe (pipe between outdoor and first branch).
The pipes should have the same size as the outdoor
connections.
■
Pipe between first branch and second branch (L2+L3) (only for
double twin).
■
Pipe between branch and indoor units (L2~L3 for twin, L2~L4 for
triple and L4~L7 for double twin).
These pipe sizes must have the same size as the connected
indoor units pipe sizes. Branch: see marking '
■
' on figures 3 , 4
and 5 .
Selection of branch pipe
L A
L
≤
H
0<L
≤
1/2H 150 (250)
1/2H<L 200 (300)
H<L Installation impossible
Installation shall be done by a licensed refrigeration
technician, the choice of materials and installation shall
comply with the applicable national and international
codes. In Europe, EN378 is the applicable standard that
shall be used.
To persons in charge of piping work:
■
Be sure to open the stop valve after piping installing
and vacuming is complete. (Running the system with
the valve closed may break the compressor.)
■
It is forbidden to discharge refrigerant into the
atmosphere. Collect the refrigerant in accordance
with the freon collection and destruction law.
■
Do not use flux when brazing the refrigerant piping.
For brazing, use phosphor copper brazing filler metal
(BCuP) which does not require a flux.
(If a chlorine flux is used, the piping will corrode, and if
the flux contains fluoride, it will cause the coolant oil to
deteriorate, adversely affecting the coolant piping
system.
Pipe Ø
Temper grade
of piping material Minimal thickness t (mm)
6.4 / 9.5 / 12.7 O 0.80
15.9 O
1.00
19.1 1/2H
≥
1000
(1500)
≥
400 (600)
≥
2000
(3000)
A
H
L
Refrigerant pipe size
(a)
(a) In case of twin, triple and double twin applications, the listed refrigerant pipe
sizes relate to the main pipes only. (L1 = the pipes between the outdoor unit and
the branch in figures
3 ~ 5 ).
Gas pipe
Model Size-down Standard size Size-up
RZQ71 Ø12.7
Ø15.9
—
RZQ100~140 — Ø19.1
Liquid pipe
Model Size-down Standard size Size-up
RZQ71~140 Ø6.4 Ø9.5 Ø12.7
Liquid Ø9.5
Gas Ø15.9
NOTE
■
For new installations, use the standard pipe sizes.
■
When using existing pipes, size-up is allowed as
mentioned in the table above.
Size up is only allowed for pair combination (L1).
Additional restrictions towards allowable pipe
lengths, as mentioned in the table
"Allowable pipe
length" on page 6 , must be taken into account.
Not using the standard pipe size may result in
capacity decrease. The installer must
acknowledge this and judge this very carefully in
function of the complete installation.
RZQ100~140B8
W1B
+
FCQ35~71C / FCQH71C/D
Twin KHRQ22M20TA KHRQ58T
Triple KHRQ127H KHRQ58H
Double twin KHRQ22M20TA (3x) KHRQ58T (3x)