EDUS39-802A-R1_a
Capacity Tables (Reference Data)
RXYQ-P Heat Pump (208-230V)
45
RXYQ192PTJU
[Explanation of sym
b
ols]
Hp :
Le
v
el diff
erence (m)
b
et
w
een indoor and o
u
tdoor
u
nits
w
here
indoor
u
nit in inf
er
ior position
H
M
:
Le
v
el diff
erence (m)
b
et
w
een indoor and o
u
tdoor
u
nits
w
here
indoor
u
nit in s
u
per
ior position
L :
E
qu
i
v
alent pipe length (m)
α
: Rate of change in cooling/heating Capacity
[Diameter of the main pipes (standard siz
e) ]
[T
emper g
rade and
Thic
kness]
5.
Read cooling/heating capacity r
ate of change in the a
b
o
v
e fig
u
res
b
ased on the f
ollo
w
ing
e
qu
i
v
alent length.
O
v
er
all e
qu
i
v
alent length =(E
qu
i
v
alent length to main pipe) × Correction f
actor + (E
qu
i
v
alent length after
b
ranching)
Choose a correction f
actor from the f
ollo
w
ing ta
b
le
.
W
hen cooling capacity is calc
u
rated :
gas pipe siz
e
W
hen heating capacity is calc
u
rated :
li
qu
id pipe siz
e
In the a
b
o
v
e case
(Cooling) O
v
er
all e
qu
i
v
alent length = 200ft × 1.0 + 100ft = 300ft
(Heating) O
v
er
all e
qu
i
v
alent length = 200ft × 0.4 + 100ft = 1
8
0ft
The r
ate of change in cooling capacity
w
hen Hp = 0ft is th
u
s appro
ximately 0.
8
3
heating capacity
w
hen Hp = 0ft is th
u
s appro
ximately 1.0
[
N
otes]
1.
These
fig
u
res ill
u
str
ate the r
ate of change in capacity of a standard indoor
u
nit system at
maxim
u
m load (
w
ith the ther
mostat set to maxim
u
m)
u
nder standard conditions
.
Moreo
v
er
,
u
nder par
tial load conditions there is only a minor de
v
iation from the r
ate of change in
capacity sho
w
n in the a
b
o
v
e fig
u
res
.
2.
W
ith this o
u
tdoor
u
nit, e
v
apor
ating press
u
re constant control
w
hen cooling, and condensing
press
u
re constant control
w
hen heating is carr
ied o
u
t.
3.
Method of calc
u
lating A/C (cooling/heating) capacity:
The maxim
u
m A/C capacity of the system
w
ill
b
e either the total A/C capacity of the indoor
u
nits
o
b
tained from capacity char
acter
istic ta
b
le or the maxim
u
m A/C capacity of o
u
tdoor
u
nits as
mentioned
b
ello
w
,
w
hiche
v
er smaller
.
Calc
u
lating A/C capacity of o
u
tdoor
u
nits
?
Condition:
Indoor
u
nit com
b
ination r
atio does not e
xceed 100
%
.
Maxim
u
m A/C capacity of o
u
tdoor
u
nits = A/C capacity of o
u
tdoor
u
nits o
b
tained from capacity
char
acter
istic ta
b
le at the 100
%
com
b
ination
× Capacity change r
ate d
u
e to piping length to the
far
thest indoor
u
nit
?
Condition:
Indoor
u
nit com
b
ination r
atio e
xceeds 100
%
.
Maxim
u
m A/C capacity of o
u
tdoor
u
nits = A/C capacity of o
u
tdoor
u
nits o
b
tained from capacity
char
acter
istic ta
b
le at the com
b
ination
× Capacity change r
ate d
u
e to piping length to the
far
thest indoor
u
nit
4.
W
hen o
v
er
all e
qu
i
v
alent pipe length is 295.3ft or more
, the diameter of the main gas and li
qu
id
pipes (o
u
tdoor
u
nit-
b
ranch sections) m
u
st
b
e increased.
W
hen le
v
el diff
erence is 164.0ft or more
, the diameter of the main li
qu
id pipe (o
u
tdoor
u
nit-
b
ranch
sections) m
u
st
b
e increased.
[Diameter of a
b
o
v
e case]
1.
Rate of change in cooling capacity
gas
Model
li
qu
id
RXYQ192PYD
N
RXYQ192PTJU
φ
3/4
φ
1-1/4
2.
Rate of change in heating capacity
gas
Model
li
qu
id
RXYQ192PYD
N
RXYQ192PTJU
φ
5/
8
φ
1-1/
8
T
ype
T
emper g
rade
O
u
ter diameter
1/2H T
ype
Minim
u
m
W
all
Thic
kness
0.99
0.
8
0
φ
5/
8
φ
3/4
φ
7/
8
φ
1-1/
8
0.
8
0
0.99
φ
1-1/4
1.10
Correction f
actor
Cooling (gas pipe)
Heating (li
qu
id pipe)
Standard siz
e
Siz
e increase
Rate of change
(o
b
ject piping)
1.0
0.5
0.4
1.0
(Example)
200ft
Indoor
u
nit
100ft
E
qu
i
v
alent length
O
u
tdoor
u
nit
Br
anch
Gas pipe :
Standard siz
e
Li
qu
id pipe :
Siz
e increase
E
qu
i
v
alent length
L (ft)
L (ft)
α
α
α
α
Hp
(ft)
H
M
(ft)
Hp
(ft)
H
M
(ft)
0.
8
5
0.
8
7
0.90
0.92
0.95
1.0
0.97
0.90
0.92
0.
8
0
0.
8
7
0.
8
2
0.
8
2
0.97
0.
8
0
0.95
0.79
0.
8
5
0.79
1.0
40
8
0
560
160
2
8
0
200
520
320
240
4
8
0
360
400
440
120
600
0
40
240
2
8
0
120
160
160
8
0
120
8
0
0
200
0
40
1.0
1.0
120
8
0
0
40
40
320
200
160
240
200
2
8
0
240
160
0
120
2
8
0
120
40
0
360
8
0
160
8
0
3D059676
Содержание VRV III RXYQ_PTJU
Страница 1: ...EDUS 39 802A R1_a AMERICAS AMERICAS AMERICAS RXYQ_PTJU 3 phase 208 230V 60Hz...
Страница 10: ...EDUS39 802A R1_a Piping Diagrams RXYQ P Heat Pump 208 230V 9 4 Piping Diagrams RXYQ72 96 120PTJU 3D058636A...
Страница 11: ...Piping Diagrams EDUS39 802A R1_a 10 RXYQ P Heat Pump 208 230V RXYQ144PTJU 3D058640...
Страница 16: ...EDUS39 802A R1_a Electric Characteristics RXYQ P Heat Pump 208 230V 15 7 Electric Characteristics 3D060211...
Страница 17: ...Electric Characteristics EDUS39 802A R1_a 16 RXYQ P Heat Pump 208 230V 3D060213...
