Daikin REYQ8-48PY1B, Руководство по обслуживанию

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SiBE37-701_B Example of connection
Appendix 448
a
How to calculate the
additional refrigerant
to be charged
Additional refrigerant to
be charged : R(kg)
R should be rounded
off in units of 0.1 kg.
R =
Total length(m)
of liquid piping
size at
φ
22.2
×0.37 +
Total length(m)
of liquid piping
size at
φ
19.1
×0.26
Total length(m)
of liquid piping
size at
φ
15.9
×0.18 + +
Total length(m)
of liquid piping
size at
φ
12.7
×0.12
Total length(m)
of liquid piping
size at
φ
9.5
×0.059 + +
Total length(m)
of liquid piping
size at
φ
6.4
×0.022
×1.02+
HEAT RECOVER SYSTEM
+
REFRIGERANT AMOUNT FOR
EXCEEDING CONNECTION
CAPACITY OF INDOOR UNIT
MODEL NAME THE AMOUNT OF REFRIGERANT
REYQ8 ~ 16PY1 3.6kg
REYQ18 ~ 20PY1 1.0kg
INDOOR
CONNECTION
CAPACITY
MODEL NAME
REYQ22 ~ 24PY1 1.5kg
REYQ8
~
32PY1
REYQ34
~
48PY1
REYQ26PY1 2.0kg
REYQ28 ~ 30PY1 2.5kg
REYQ32 ~ 40PY1 3.0kg
MORE THAN 100%
120% OR LESS
0.5kg
REYQ42PY1 3.5kg
REYQ44 ~ 46PY1 4.0kg
MORE THAN 120%
130% OR LESS
0.5kg 1.0kg
REYQ48PY1 4.5kg
Example for refrigerant branch using REFNET joint and REFNET header for the systems and each pipe length as shown below.
Outdoor system : REYQ34PY1
Total capacity of indoor unit : 116%
R = ( 50 × 0.26 + 1 × 0.18 + 3 × 0.12 + 156 × 0.059 + 20 × 0.022 )×1.02 + 3.0 + 0.5
a, b u r c~n, s, t o, p REYQ34PY1 116%
= 27.148 27.1kg
Round off in units of 0.1 kg.
a :
φ
19.1 × 30m e :
φ
9.5 × 10m i :
φ
9.5 × 10m m :
φ
9.5 × 20m r :
φ
12.7 × 3m
b :
φ
19.1 × 20m f :
φ
9.5 × 10m j :
φ
9.5 × 10m n :
φ
9.5 × 10m s :
φ
9.5 × 3m
c :
φ
9.5 × 10m g :
φ
9.5 × 10m k :
φ
9.5 × 20m o :
φ
6.4 × 10m t :
φ
9.5 × 3m
d :
φ
9.5 × 10m h :
φ
9.5 × 10m l :
φ
9.5 × 20m p :
φ
6.4 × 10m u :
φ
15.9 × 1m
System Liquid pipe
REYQ8 ~ 10PY1
φ
9.5
→ φ
12.7
REYQ12 ~ 16PY1
φ
12.7
→ φ
15.9
REYQ18 ~ 24PY1
φ
15.9
→ φ
19.1
REYQ26 ~ 48PY1
φ
19.1
→ φ
22.2
Note 1.
When the equivalent pipe length between outdoor and indoor units is
90m or more, the size of main pipes on the liquid side (refer to figure 9)
must be increased according to the right table.
(Never increase suction gas pipe and HP/LP gas pipe.)
(Refer to figure 9)
1.
Outdoor unit
2. Main pipes
3. Increase only liquid pipe size
4. First refrigerant branch kit
5. BS unit
6. Indoor unit
Note 2. Allowable length after the first refrigerant branch kit to indoor units is 40m or less, however it can be extended up to 90m if all the following conditions are satisfied. (In case of “ Branch with REFNET joint ”)
Required Conditions Example Drawings
1. It is necessary to increase the pipe size if the pipe length between the first branch
kit and the final branch kit is over 40m. (Reducers must be procured on site)
If the increased pipe size is larger than main pipe size, then
increase the main pipe size to the same pipe size.
2. For calculation of Total extension length, the actual length of
above pipes must be doubled. (except main pipe and the
pipes that are not increased)
3. Indoor unit to the nearest branch kit
≤
40 m
4. The difference between
[Outdoor unit to the farthest indoor unit] and [Outdoor unit to
the nearest indoor unit]
≤
40 m
*If available on the site, use this size. Otherwise it can not be increased.
8 b+c+d+e+f+g+p
≤
90 m
increase the pipe size of b, c, d, e, f, g
a+b×2+c×2+d×2+e×2+f×2+g×2
+h+i+j+k+l+m+n+p
≤
1000 m
h, i, j....... p
≤
40 m
The farthest indoor unit 8
The nearest indoor unit 1
(a+b+c+d+e+f+g+p)-(a+h)
≤
40 m
Increase the pipe size as follows
φ
9.5
→ φ
12.7
φ
12.7
→ φ
15.9
φ
15.9
→ φ
19.1
φ
19.1
→ φ
22.2
φ
22.2
→ φ
25.4*
φ
28.6
→ φ
31.8*
φ
34.9
→ φ
38.1*
Outdoor unit
REFNET joint (A-G)
a b c d e f
g
H1
p
7 6 5 4
8
m n l k j i h
A B C D E F G
Indoor units ( 1 - 8 )
3 2 1
1
2
3
4
5 6