Midea Aqua Tempo Super II Series, Инженерные данные

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2019
The
Min
In co
Whe
In he
Whe
The
3.3.6
If a
allow
large
valu
For
form
T1=l
T2=h
Vs=v
P1=a
P2=a
V1,
V
α
=lin
for c
In a
wate
fill
co
3.3.7
Sele
H=H
H:
Th
H1:
H2:
902
heating mod
imum water
ooling mode,
ere: Wc is th
N is the
eating mode,
ere: Wct is t
N is the
minimum wa
6 Design of t
closed expan
wable pressu
e, when the
e and cause t
diaphragm e
mula, recomm
ower temper
higher tempe
volume of wa
absolute pres
absolute pres
V2=specific v
near coefficie
copper,
α
=9.5x
chilled wate
er system shu
onditions (fo
7 Selection a
ct the left of
1+H2+H3+H4
he lift of the
Main unit wa
Pump water
Qd
2
Qs
2 ⁰
Wc
e limit is the
volume of co
the minimum
he minimum
e quantity of
, the minimum
the minimum
e quantity of
ater volume o
he store tank
nsion tank wi
re and cause
water tempe
trouble in the
xpansion tan
mended by AS
rature, ⁰ F ( ⁰ C
erature, ⁰ F ( ⁰ C
ater in system
ssure at lowe
ssure at highe
volume of wat
ent of therma
x10 ‐ 6in./in
·
er system, th
uts down dur
r example, 50
nd installatio
the pump:
4
pump.
ater resistanc
resistance.
2 ⁰ C
= 25.7 x 86
C
= 25.7 x 860
Δ Tt
2 ⁰ C
= 3
ct
2 ⁰ C
= (2652 +
larger of W
ct
ombination c
m water volu
water volum
combination
m water volu
m water volum
units runing
of combinatio
k in the syste
ith its filled v
water to disc
erature drop
e air vent. Th
nks, the mini
SHRAE Handb
)
C)
m, gal(m
3
)
r temperatur
er temperatu
ter at lower a
al expansion:
⁰ F (1.7x10 ‐ 5
e higher tem
ring summer.
0 ⁰ F or 10 ⁰ C).
on of the pum
e.
60 x 0.12 = 26
0 x (4/60) = 1
30 ‐ 15 = 15 ⁰ C
+ 1473) / 15 =
t2 ⁰ C
and W
ct ‐ 7 ⁰
chilled water
me of combin
me of single ch
units of the
me of combi
me of single c
in defrosting
on chilled wat
em
volume of air
charge from t
s, the system
erefore, accu
mum volume
book 1996, HV
Vs
V
V
re, Pisa (kPa a
re, Pisa (kPa
and higher te
for steel,
α
=
per ⁰ C)
mperature T2
The lower te
.
mp
652kcal
1473kcal
C
= 275L
⁰ C
, hence 275
r system
nation chilled
Wcc=Wc*N
hilled water s
chilled water
nation chilled
Wch=Wct*N
chilled water
of chilled wa
ter system is
r is too smal
the pressure
m pressure m
urate sizing of
e of the wate
VAC Systems
V2
V1
1 3α
1
P
P
abs.)
abs.)
emperature, r
=6.5x10 ‐ 6in./
2 is the highe
emperature i
Q
Qs
W
L.
d water syste
system in coo
r system
d water syste
N
system in hea
ater system
the larger of
l, the system
relief valve, t
may decrease
f a closed exp
er tank, Vt, g
and Equipme
T2 T1
P1
P2
respectively, f
in
·
⁰ F (1.2x1
est anticipate
n a heating s
Qd ‐
7 ⁰ C
= 24.4 x
s
‐ 7 ⁰ C
= 24.4 x 8
Δ Tt
‐ 7 ⁰ C
=
Wct
‐ 7 ⁰ C
= (251
A
m Wcc is:
ling mode
em Wch is:
ating mode
the Wcc and
pressure wi
thus wasting
to a level b
pansion tank
gal(m
3
), can b
ent:
ft3/lb(m
3
/kg)
10 ‐ 5per ⁰ C);
ed ambient t
ystem is ofte
x 860 x 0.12 =
860 x (4/60) =
= 35 ‐ 20 = 15
18 + 1399) / 1
Aqua Tem
d Wch.
ill easily exce
water. If the
below the mi
is essential.
be calculated
)
temperature
en the ambie
= 2518kcal
= 1399kcal
5 ⁰ C
15 = 261L
mpo Supe
eed the maxi
closed tank i
inimum allow
d by the follo
when the ch
nt temperatu
er II
61
Pa
rt
3
‐
Ins
talla
tion
and
Field
Se
tt
ings
mum
is too
wable
owing
hilled
ure at