Handleiding
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5 Preparation
Installer and user reference guide
15
RXYTQ8~16T7YF
VRV IV system air conditioner
4P388989-1A – 2015.07
However, extension is possible if all below conditions are met. In this
case limitation can be extended up to 90m.
a
A
h i j k l m n
B C D E F G
p
b c d e f
1 2 3 4 5 6 7
8
g
H1
H2
1
2
3
1 Outdoor units
2 Refnet joints (A~G)
3 Indoor unit (1~8)
Conditions:
a The piping length between all indoor to the nearest branch kit is
≤40m.
Example: h, i, j … p≤40m
b It is necessary to increase the pipe size of the gas and liquid
piping if the pipe length between the first and the final branch kit
is over 40m.
If the increased pipe size is larger than the pipe size of the main
pipe, then the pipe size of the main pipe has to be increased as
well.
Increase the pipe size as follows:
9.5 → 12.7; 12.7 → 15.9; 15.9 → 19.1; 19.1 → 22.2; 22.2 →
25.4
(a)
; 28.6 → 31.8
(a)
; 34.9 → 38.1
(a)
(a) If available on the site. Otherwise it cannot be increased.
Example: unit8: b+c+d+e+f+g+p≤90m and b+c+d+e+f+g
>40m; increase the pipe size of b, c, d, e, f, g.
c When the piping size is increased (stepb), the piping length
has to be counted as double (except for the main pipe and the
pipes that are not increased in pipe size).
The total piping length has to be within limitations (see table
above).
Example: a+b×2+c×2+d×2+e×2+f×2+g×2+h+i+j+k+l+m+n
+p≤1000m (500m).
d The piping length difference between the nearest indoor from
first branch to the outdoor unit and farthest indoor to the
outdoor unit is ≤40m.
Example: The farthest indoor unit 8. The nearest indoor unit 1
→ (a+b+c+d+e+f+g+p)–(a+h)≤40m.
5.3.6 Multiple outdoor units: Possible layouts
▪ The piping between the outdoor units must be routed level or
slightly upward to avoid the risk of oil retention into the piping.
Pattern 1 Pattern 2
a
b
b
a
b
a
a
b
a
b
b
a
a To indoor unit
b Piping between outdoor units
X Not allowed
O Allowed
▪ To avoid the risk of oil retention to the outmost outdoor unit,
always connect the stop valve and the piping between outdoor
units as shown in the 4 correct possibilities of the figure below.
a
b b b
a
b b b
a
b
a
b
a
b
a
a
a
≥200 mm
a To indoor unit
b Oil collects to the outmost outdoor unit when the system
stops
X Not allowed
O Allowed
▪ If the piping length between the outdoor units exceeds 2m, create
a rise of 200 mm or more in the gas line within a length of 2 m
from the kit.
If Then
≤2m
a
b
≤2 m
>2m
a
≤2 m ≤2 m
≥200 mm
≥200 mm
b
>2 m >2 m
a To indoor unit
b Piping between outdoor units
NOTICE
There are restrictions on the refrigerant pipe connection
order between outdoor units during installation in case of a
multiple outdoor unit system. Install according to following
restrictions. The capacities of outdoor units A, B and C
must fulfill the following restriction conditions: A≥B≥C.
A B C
a b c
a To indoor units
b Outdoor unit multi connecting piping kit (first branch)
c Outdoor unit multi connecting piping kit (second branch)
Bekijk gratis de handleiding van Daikin RXYTQ28TYF, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Daikin |
| Model | RXYTQ28TYF |
| Categorie | Airco |
| Taal | Nederlands |
| Grootte | 11898 MB |
