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8/17/2019 Us 7308906
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United S t a t e s
P a t e n t
US007308906B2
( 1 2 ) ( 1 0 ) P a t e n t N 0 . : US 7,308,906 B 2
S i n c l a i r e ( 4 5 ) Date
o f P a t e n t :
D e c . 1 8 , 2007
(54)
MULTI-STORY
WATER
DISTRIBUTION 5,032,290
A * 7/1991
Yamagat a
e t
a 1 .
. . . . . . . .
. . 210/747
SYSTEM
5 , 1 8 3 , 1 0 2 A 2 / 1 9 9 3 C l a r k
5 , 42 5 , 50 3
A
* 6 / 1 9 9 5 Corso
. . . . . . . . . . . . . . . . . . . . . . . .
. 237 / 6 3
( 7 5 )
I n v e n t o r :
R o s s
S i n c l a i r e ,
1 3 1 5 C o l b o r n e C r e s c e n t
i : 1 ( 7 ) ;
( 3 0 1 1 5 0
e _ t
3 1 '
4 1 1 3 7 4 2 4 4 3
, ,
Z l agyr . . . . . . .
. .E algary’ Alberta
(CA)UT R3 6,715,691
B2*
4/2 00 4 P ark
e t a 1 .
. .
237/8
A
( 7 3 )
Assignee
Ross s i n c l a i r e Albena (CA) 2004/0026075 Al* 2 / 2 0 0 4 P a r k e t a 1 . . . . . . . . . . . . . . . . . . . 1 6 5 / 2 1 8
FOREIGN
PATENTDOCUMENTS
( * ) N o t i c e : S u b j e c t t o a n y
d i s c l a i m e r ,
t h e t e r m o f h i s
p a t e n t i s
extended
o r a d j u s t e d
under 35 CA
2 0 8 2 7 1 8
4 / 1 9 9 7
U . S . C . 1 5 4 ( b ) b y 3 7 5
d a y s .
* c i t e d b y e x a m i n e r
Primar
ExamineriEric
K e a s e l
2 1
A
l .
N :
10/851 349
y
( ) pp 0 ’ A s s i s t a n t Ex am i n e r 4 Clo ud Lee
( 2 2 ) F i l e d :
Ma y 2 1 ,
2 0 0 4 ( 7 4 ) A t t o r n e y , A g e n t , o r
FirmiSheridan R o s s PC.
( 6 5 )
P r i o r
P u b l i c a t i o n Data ( 5 7 ) ABSTRACT
US
2005/0183773 A1 Aug, 2 5 ,
2005
A ethod and s y s t e m
f o r t h e d i s t r i b u t i o n
o f W a t e r i n
a
h i g h
r i s e b u i l d i n g
i s p r o v i d e d u s i n g a minimum
number
o f p i p i n g
Related U S . A p p l i c a t i o n D a t a r i s e r s . T h e
system
h a s
a
d o m e s t i c
c o l d
W a t e r r i s e r , and
a
( 6 0 )
P r o v i s i o n a l
a p p l i c a t i o n N o . 6 0 /
5 5 9 , 0 2 3 , ? l e d o n A p r .
d O m - e 1 1 1 6 1 : 1 1 1
0 t
w a t e r l i l u p p l y
n s e r a l n d
a
l - a e t u m n f i e r ' f A t
e a l c l h
5 2004
p r o v i s i o n a l
a p p l i c a t i o n No 6 0 / 5 4 6
1 8 4
? l e d S e n / I c e . 0 0 f ’ a
C O
W a t e r
S u p p
y mam x t e n
S
mm
- e
’
F
b’ 23
200
’ ’ domestrc cold W a t e r r r s e r a n d
a
hot W a t e r supply
mam
on e ’ e x t e n ds
from
t he
domestic
hot
Wat e r
supply r i s e r . On
e a c h
( 5 1 )
I n t
Cl
?oor
a t Which r i s e r
p r e s s u r e
i s h i g h e r t h a n d o m e s t i c u s e
F 1 8 1 ‘ / 0 0
( 2 0 0 6 0 1 ) p r e s s u r e s , a
v a l v e r e d u c e s
t h e p r e s s u r e o f t h e e n t i r e c o l d
' _ W a t e r s u p p l y main o
dom es t i c u s e
p ressu res.
One
or more
( 5 2 ) US. l . . . . . . . . . . . . . . . . : . . . . . . . . . . . . . . . . . . . . . 137/357, 137/563
Valves
a t each of one
or
m o r e S u i t e s on the ?oor
r e d u c e
the
( 5 8 ) F i e l d
o f C l a s s i ? c a t i o n
S e a r c h . . . . . . . . .
1 3 7 / 5 6 3 , p r e s s u r e
O f t h e
h o t
W a t e r
t o e a c h
S u i t e ’
l e a v i n g t h e h o t
W a t e r
S
1 _
1 3 7 6 1 5 ; ’ £ 0 5 ’
3 4 1 ’ 1
1 t 6 5 / 2 4 4 i 1 1 2 1 _ 3 Z / 8
R ’
6 3 s u p p l y m a i n f o r t h e ? o o r a t
f u l l
r i s e r p r e s s u r e .
C o u p l i n g
ee ap p
1 0 2 ‘
Ion e or Comp e e S e a m
1 5
D r y ‘ f a n - c o i l s W it h c h i l l e d Water supply a n d the f u l l pressure
( 5 6 ) R e f e r e n c e s C i t e d
d o m e s t i c
h o t W a t e r p r o v i d e s a n e ? i c i e n t
p i p i n g
s y s t e m
f o r
US.
PATENTDOCUMENTS
3 , 6 1 7 , 6 9 9 A * 1 1 / 1 9 7 1 Othmer . . . . . . . . . . . . . . . . . . . .
. 392/469
3,692,047
A
* 9/1972 Camp . . . . . . . . . . 137/495
5 , 0 2 2 , 2 3 1 A *
6 / 19 9 1 Martinez,
J r . . . . . . . . . . . . . . . . . . .
6 2 /9 9
both
environmental c o n t r o l s and
domestic
h o t
Water u s e .
R e g u l a r a n d p e r i o d i c c i r c u l a t i o n t h r o u g h f a n - c o i l s a v o i d
s t a g n a t i o n
o f
t h e
d o m e s t i c
h o t
W a t e r
s u p p l y .
1 7
C l a i m s , 1 0
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S h e e t s
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1
MULTI-STORY
WATER DISTRIBUTION
SYSTEM
T h i s
a p p l i c a t i o n c l a i m s t h e
b e n e ? t o f U S .
p r o v i s i o n a l
p a t e n t
a p p l i c a t i o n S e r . N o . 6 0 / 5 4 6 , 1 8 4 , ? l e d F e b . 2 3 , 2 0 0 4 ,
a n d
US.
p r o v i s i o n a l p a t e n t
a p p l i c a t i o n S e r . N o . 6 0 / 5 5 9 , 0 2 3 ,
? l e d A p r . 5 ,
2 0 0 4 .
The e n t i r e d i s c l o s u r e s
o f
t h e
p r o v i s i o n a l
a p p l i c a t i o n s
a r e
c o n s i d e r e d t o be
p a r t
o f t h e d i s c l o s u r e o f t h e
a c c o m p a n y i n g
a p p l i c a t i o n a n d a r e
h e r e b y
i n c o r p o r a t e d b y
r e f e r e n c e .
F I E L D OF THE INVENTION
The p r e s e n t i n v e n t i o n r e l a t e s t o s y s t e m s f o r
t h e d i s t r i b u
t i o n o f W a t e r i n b u i l d i n g s
and
t o
s y s t e m s
t h a t minimiZe
t h e
n u m b e r o f
p i p i n g r i s e r s
t h r o u g h t h e s t r a t e g i c p l a c e m e n t o f
p r e s s u r e
r e d u c i n g v a l v e s
BACKGROUNDOF THE INVENTION
W a t e r
d i s t r i b u t i o n s y s t e m s f o r
m u l t i - s t o r y b u i l d i n g s t y p i
c a l l y c o m p r i s e v a r i o u s a r r a n g e m e n t s o f W a t e r
s u p p l y
a n d
r e t u r n s .
M u l t i - s t o r y b u i l d i n g s
i n t r o d u c e c h a l l e n g e s
i n c l u d
i n g
m i n i m i Z i n g
r e d u n d a n t p i p i n g a n d p r o v i d i n g s o m e f o r m
o f
p r e s s u r e
c o n t r o l from ?oor
t o ? o o r Where h y d r o s t a t i c
h e a d
v a r i e s , y e t p r e s s u r e f o r d o m e s t i c p u r p o s e s s h o u l d b e
r e l a t i v e l y c o n s t a n t .
As s e t
f o r t h
i n U S .
P a t .
No. 5 , 1 8 3 , 1 0 2
t o
C l a r k , t h e
e n t i r e t y o f W h i c h i s i n c o r p o r a t e d h e r e i n
b y r e f e r e n c e , a n
i m p r o v e m e n t
i n
e ? i c i e n c y
i n
p i p i n g r u n s Was
s u g g e s t e d
u s i n g
e x i s t i n g s p r i n k l e r
s y s t e m s
a n d d o m e s t i c
h o t
W a t e r
s y s t e m s t o
d o u b l e a s c o o l i n g
a n d h e a t i n g s y s t e m s . T h i s
s y s t e m
a v o i d s p i p i n g
a n
i n d e p e n d e n t
s u p p l y o f c h i l l e d
W a t e r
t h r o u g h a
? r s t
d e d i c a t e d p i p i n g s y s t e m t h a t c i r c u l a t e s t h e
c h i l l e d
W a t e r t h r o u g h o u t t h e b u i l d i n g
a n d
a v o i d s p i p i n g
a n
i n d e p e n d e n t
h e a t i n g s y s t e m
a n d
s u p p l y o f h o t
W a t e r t h r o u g h
a s e p a r a t e s e c o n d
d e d i c a t e d p i p i n g
s y s t e m f o r
c i r c u l a t i o n
t h r o u g h o u t
t h e b u i l d i n g .
T r a d i t i o n a l l y ,
r o o m - b y - r o o m
h e a t i n g ,
a n d
a i r
c o n d i t i o n
i n g s y s t e m s
i n l a r g e
b u i l d i n g s h a v e
b e e n W h a t a r e knoWn i n
t h e a r t a s
f o u r - p i p e f a n - c o i l s y s t e m s ;
t W o
p i p e s
f o r c o o l i n g
W a t e r How, and tWo f o r h e a t i n g W a t e r ?oW. I n d i v i d u a l
f a n - c o i l u n i t s p l a c e d
a t
v a r i o u s
l o c a t i o n s
t h r o u g h o u t
t h e
b u i l d i n g p r o v i d e f o r
Z o n a l
t e m p e r a t u r e
c o n t r o l . H e a t i n g
o r
c o o l i n g
i s
p r o v i d e d
by
h a v i n g
t h e f a n c i r c u l a t e a i r o v e r
a
c o i l
t h a t i s a c c e s s i n g e i t h e r t h e h o t - W a t e r o r t h e c h i l l e d - W a t e r
p i p i n g s y s t e m ,
r e s p e c t i v e l y . As
W a s
r e c o g n i Z e d b y C l a r k ,
W h i l e t h e
f o u r - p i p e
f a n - c o i l s y s t e m
p r o v i d e s
Z o n a l t e m p e r a
t u r e c o n t r o l , economy
o f
o p e r a t i o n , l o W
m a i n t e n a n c e ,
a n d
minimum o i s e , t h e r e l a t i v e l y h i g h c o s t o f
c o n s t r u c t i n g
t h e
d e d i c a t e d h o t a n d c h i l l e d - W a t e r p i p i n g s y s t e m s h a d r e d u c e d
t h e i r p o p u l a r i t y .
C l a r k
u t i l i Z e d a
W a t e r c o o l e r
i n t e g r a t e d
i n t o
t h e
? r e
s p r i n
k l e r
p i p i n g s y s t e m o f a
b u i l d i n g .
T h e
W a t e r c o o l e r ,
a l o n g
W i t h a c h i l l e d - W a t e r pump, c i r c u l a t e s c h i l l e d W a t e r t h r o u g h
o u t t h e ? r e s p r i n k l e r p i p i n g s y s t e m . I n
a d d i t i o n , W a t e r
c i r c u l a t i n g
i n
t h e
d o m e s t i c
h o t - W a t e r
p i p i n g s y s t e m i s
a c c e s s e d f o r h e a t i n g p u r p o s e s .
W h i l e C l a r k
d i s c u s s e d i m p l e m e n t a t i o n
t o m u l t i - s t o r y
b u i l d i n g s , t h e r e
i s
no s o l u t i o n o f f e r e d Which
r e c o g n i Z e s
v a r i a t i o n s i n
h y d r a u l i c p r e s s u r e a s
W a t e r i s
d e l i v e r e d
from
t h e
l o W e s t ? o o r t o
t h e
h i g h e s t
? o o r ,
p a r t i c u l a r l y
Whe n
c o n s i d e r i n g d o m e s t i c W a t e r
r e q u i r e m e n t s
a n d t h e d e s i r a b i l
i t y o f e x p e r i e n c i n g c o n s i s t e n t W a t e r p r e s s u r e .
T o d a t e , t h e
C l a r k
s y s t e m h a s
b e e n a p p l i e d
t o l o W b u i l d i n g s
a n d
e a c h
? o o r
i s
s u p p l i e d W i t h i n d e p e n d e n t
r i s e r s f r o m t h e main
? o o r
t o e a c h h i g h e r
?oor
a t
p r e s s u r e s
o f a b o u t 40 t o 7 4 p s i g .
20
25
30
35
40
45
50
55
60
6 5
2
I n a 24 s t o r e y b u i l d i n g t h e p r e s s u r e
a t
t h e l o W e s t
?oor
m a y
be
a b o u t
130
p s i g s o
a s t o
m a i n t a i n
40
p s i g
a t t h e
r o o f
Where
t h e
h y d r a u l i c head
s
a t
i t s
minimum.
To
s u p p l y
a
7 2 s t o r e y
b u i l d i n g
from a
s i n g l e r i s e r
Would
r e s u l t
i n
p r e s s u r e s
a t
t h e
l o W e s t ? o o r a t
a b o u t
2 5 0 p s i . H o W e v e r , i t
i s
u n a c c e p t a b l e
t o
a p p l y 250
p s i
o r even
130
p s i g Water f o r d o m e s t i c
u s e .
F u r t h e r ,
h i g h e r p r e s s u r e
i n
t h e
d o m e s t i c h o t W a t e r
s y s t e m
W i l l
e n s u r e
r e t u r n
How
o t h e b o i l e r s b u t t h e p r e s s u r e i s
t o o
h i g h f o r d o m e s t i c p u r p o s e s .
S h o r t c o m i n g s
i n
t h e knoWn c o m b i n a t i o n
s p r i n k l e r a n d
d o m e s t i c
h o t
W a t e r
s y s t e m s
have
r e s u l t e d i n l i m i t e d a c c e p
t a n c e
o f
t h e
t e c h n o l o g y
e v e n a f t e r
a l l o f
h i s t i m e .
A p p l i c a n t
a d d r e s s e s
t h e s e
s h o r t c o m i n g s .
SUMMARY OF THE INVENTION
A p p l i c a n t h a s p r o v i d e d a s y s t e m
W h i c h
s i g n i ? c a n t l y
r e d u c e s t h e
p i p i n g
n e e d e d
t o
s u p p l y d o m e s t i c h o t a n d
c o l d
Water t o one
o r
more u n i t s , r e s i d e n c e s o r s u i t e s i n high r i s e
b u i l d i n g s a n d s o l v e s i s s u e s a s s o c i a t e d W i t h t h e s u p p l y
o f
Water
a t
p r e s s u r e s
above
d e s i r e d
domestic use
p r e s s u r e s . T h e
number
o f r i s e r s t h r o u g h o u t c a n
b e
r e d u c e d i n
number
by
more
t h a n an
o r d e r
of m a g n i t u d e . Noise
i s s u e s
a s s o c i a t e d
w i t h How i n r i s e r s
e x t e n d i n g
t h r o u g h
e a c h s u i t e
i s
s u b s t a n
t i a l l y
e l i m i n a t e d .
A p p l i c a n t r e c o g n i Z e d
t h a t s e v e r a l a s p e c t s o f
p r e s s u r e
c o n t r o l a t e a c h ? o o r p r o v i d e s s i g n i ? c a n t a d v a n t a g e s . Use o f
p r e s s u r e
r e d u c i n g
v a l v e s on
d o m e s t i c W a t e r s y s t e m s
e l i m i
n a t e s ? o o r t o
? o o r
r i s e r s
a n d
r e m a r k a b l y r e d u c e s p i p i n g
r u n s .
P r e s s u r e
and How c o n t r o l
i s m a i n t a i n e d
d e s p i t e t h e
number o f
? o o r s
i n t h e b u i l d i n g . No l o n g e r d o e s d o m e s t i c
W a t e r
p r e s s u r e
a n d
p l u m b i n g
? t t i n g r e q u i r e m e n t s l i m i t t h e
use of common
i s e r s a t
f u l l pump r e s s u r e a t f u l l
hydro
s t a t i c
h e a d .
F u r t h er , t h e s y s t e m h a s s e v e r a l s o l u t i o n s f o r
a v o i d i n g s t a g n a t i o n Which
can o c c u r i n
some
d o m e s t i c l i n e s ,
c o n t r a r y
t o p u b l i c
s a f e t y a n d
c o n t r a r y
t o p l u m b i n g r e g u l a
t i o n s i n some j u r i s d i c t i o n s .
I n
one embodiment,
t h e
system h a s
a
domestic
c o l d
Water
r i s e r , and a d o m e s t i c
h o t
W a t e r s u p p l y r i s e r and m a y
i n c l u d e
a
r e t u r n r i s e r . At each s e r v i c e d
? o o r , a
domestic
c o l d
Water
s u p p l y
main
e x t e n d s from t h e c o l d W a t e r r i s e r and a domes
t i c h o t W a t e r s u p p l y main e x t e n d s
from t h e
h o t W a t e r s u p p l y
r i s e r . On a c h ?oor a t
Which r i s e r p r e s s u r e
i s h i g h e r t h a n
domestic
use p r e s s u r e s ,
a
p r e s s u r e r e d u c i n g
v a l v e r e d u c e s
t h e
p r e s s u r e
o f t h e e n t i r e c o l d W a t e r s u p p l y
main
t o d o m e s t i c
use p r e s s u r e s . In c a s e s
W h e r e
t h e r e i s
no
domestic hot Wat e r
r e t u r n r i s e r , a
p r e s s u r e
r e d u c i n g v a l v e r e d u c e s t h e
p r e s s u r e
of t h e e n t i r e h o t W a t e r
s u p p l y
main
t o
d o m e s t i c u s e
p r e s
s u r e s ;
t h i s
h o t
W a t e r main b e i n g
h e a t
t r a c e d t o m a i n t a i n t h e
temperature of
t h e h o t
Water
a v a i l a b l e f o r u s e . I n
c a s e s
W h e r e t h e r e
i s
a domestic hot Water r e t u r n r i s e r , then
one
o r
mo r e
pressure reducing valves
a t
each of one o r mor e s u i t e s
on
t h e
?oor
reduce t h e p r e s s u r e of t h e domestic h o t Water
a v a i l a b l e
a t
e a c h
s u i t e ,
l e a v i n g
t h e d o m e s t i c
h o t W a t e r
s u p p l y main f o r t h e ?oor
a t f u l l
r i s e r p r e s s u r e s o
t h a t m a y
r e c i r c u l a t e i n t o t h e r e t u r n r i s e r W h i l e a l s o
e n a b l i n g main
t a i n i n g h o t W a t e r
r e c i r c u l a t i o n
o r f o r
s e c o n d a r y
h e a t i n g
p u r p o s e s . C o u p l i n g f a n - c o i l s
o f f
o f
t h e f u l l r i s e r p r e s s u r e
d o m e s t i c h o t W a t e r main p r o v i d e s
a n e f ? c i e n t
p i p i n g
s y s t e m
f o r
both envir onmental
c o n t r o l s and
domestic h o t Water u s e .
R e g u l a r a n d p e r i o d i c c i r c u l a t i o n t h r o u g h f a n - c o i l s
a v o i d s
s t a g n a t i o n
o f
t h e
d o m e s t i c
h o t
W a t e r
s u p p l y .
I n
one
b r o a d a s p e c t , method and a p p a r a t u s f o r t h e d i s t r i
b u t i o n o f W a t e r i n a
h i g h r i s e b u i l d i n g i s p r o v i d e d , t h i s
b u i l d i n g
h a v i n g
m u l t i p l e s e r v i c e d
? o o r s e a c h
? o o r
h a v i n g
one
o r
mor e s u i t e s s e r v i c e d With
domestic hot
an d
cold
W a t e r .
Such
a s
method c o m p r i s e s : p r o v i d i n g a
d o m e s t i c c o l d
8/17/2019 Us 7308906
13/18
U S
7 , 3 0 8 , 9 0 6
B2
3
W a t e r r i s e r ,
a d o m e s t i c h o t
W a t e r
s u p p l y r i s e r ; p r o v i d i n g a
d o m e s t i c c o l d W a t e r
s u p p l y
main
e x t e n d i n g
f r o m t h e c o l d
W a t e r
r i s e r a t e a c h
s e r v i c e d ?oor
f o r s e r v i c i n g t h e
s u i t e s
and
a d o m e s t i c
h o t
W a t e r
s u p p l y
main a t each
s e r v i c e d
?oor
f o r
s e r v i c i n g t h e s u i t e s ; r e d u c i n g t h e p r e s s u r e
o f
t h e d o m e s t i c
c o l d W a t e r
s u p p l y
main
f o r
e a c h ?oor a t
Which
t h e c o l d
Water
p r e s s u r e
i n
t h e
c o l d
Water
i s e r i s above
a
? r s t p r e s s u r e
t h r e s h o l d ; a n d
r e d u c i n g
t h e
p r e s s u r e
o f t h e d o m e s t i c h o t
W a t e r
s u p p l y main
p r i o r
t o d o m e s t i c u s e
? x t u r e s
o f e a c h
s u i t e
a t
each ?oor
a t
Which
t h e d o m e s t i c h o t Water p r e s s u r e
i n t h e domestic h o t Water
r i s e r
i s
above
a second p r e s s u r e
t h r e s h o l d .
P r e f e r a b l y , t h e m e t h o d f u r t h e r c o m p r i s e s e x t e n d i n g t h e
d o m e s t i c h o t W a t e r
s u p p l y
main
from t h e
h o t W a t e r
s u p p l y
r i s e r t o a
domestic h o t Water
r e t u r n r i s e r and
r e d u c i n g
t h e
p r e s s u r e
o f
t h e h o t
W a t e r
betWeen t h e h o t
W a t e r s u p p l y main
and t h e domestic
use
? x t u r e s .
P r e f e r a b l y ,
t h e ? r s t and
s e c o n d
p r e s s u r e t h r e s h o l d s a r e
a b o u t d o m e s t i c
plumbing ? x t u r e p r e s s u r e s and t h e h o t W a t e r
s u p p l y main s
m a i n t a i n e d
h o t b y
c i r c u l a t i n g h o t W a t e r
f r o m
t h e
h o t
W a t e r
s u p p l y
main t o t h e d o m e s t i c h o t W a t e r r e t u r n
r i s e r , s u c h a s t h r o u g h a b l e e d v a l v e .
More
p r e f e r a b l y ,
Whe n
a p p l i e d
W i t h
f a n - c o i l s
h a v i n g
a
h e a t i n g
c i r c u i t , f u l l
p r e s s u r e d o m e s t i c h o t W a t e r
f r o m t h e
h o t
W a t e r r i s e r i s s u p p l i e d t o t h e
f a n - c o i l s
and r e t u r n s t o t h e
d o m e s t i c
h o t
W a t e r
r e t u r n
r i s e r . A
l u r a l i t y o f i n d i v i d u a l and
p r e s s u r e reduced h o t W a t e r l i n e s branch o f f o f t h e
h o t
Water
d i s t r i b u t i o n
ma i n t o
e x t e n d t o
ach of t h e
d o m e s t i c
? x t u r e s .
T e m p e r a t u r e
c o n t r o l v a l v e s
on t h e f a n - c o i l s
c a n b e
p e r i o d i
c a l l y
opened f o r a b r i e f p e r i o d t o e n s u r e t h a t no s t a g n a t i o n
t a k e s p l a c e i n t h e f a n - c o i l , p a r t i c u l a r l y i n h o t W e a t h e r
c o n d i t i o n s W h e n t h e r e i s n o c a l l f o r h e a t i n g .
BR I E F DESCRIPTION OF THE DRAWINGS
FIG.
1a i s
a
schematic i s o m e t r i c vieW of
a
p r i o r
a r t Water
p i p i n g
s y s t e m o f
a c o n v e n t i o n a l
2 4
? o o r h i g h r i s e b u i l d i n g ;
F I G .
1b
s
a c l o s e
up vieW
o f
t h e
u p p e r ? o o r s o f
t h e p r i o r
a r t s c h e m a t i c
i s o m e t r i c vieW
a c c o r d i n g t o
F I G . 1 a ;
FIG. 2 i s a
s c h e m a t i c
i s o m e t r i c vieW of a Water p i p i n g
s y s t e m o f
o n e
embodiment o f
t h e
i n v e n t i o n i l l u s t r a t i n g
m i n i m i Z i n g t h e
number
o f v e r t i c a l r i s e r s
n e c e s s a r y
f o r t h e
same c o n v e n t i o n a l
h i g h r i s e
b u i l d i n g o f
F I G .
1 ;
F I G . 3 i s a c l o s e
up
ofone b a s e
?oor o f t h e system of
I G .
2 W i t h t h e
c o l d
W a t e r
and h o t
W a t e r
r u n s
s p a c e d f o r v i e W i n g
c l a r i t y ;
FIG.
4
i s
a s c h e m a t i c i s o m e t r i c vieW of a
Water p i p i n g
s y s t e m o f a n o t h e r embodiment o f t h e i n v e n t i o n i l l u s t r a t i n g
a p p l i c a t i o n
o f
t h e
s y s t e m o f F I G . 2 t o
a 7 2 ? o o r
h i g h r i s e
b u i l d i n g o f
F I G .
1
a n d F I G . 2 ;
F I G . 5 i s a s c h e m a t i c e l e v a t i o n
o f
a h i g h r i s e b u i l d i n g
i m p l e m e n t i n g some o f t h e
f e a t u r e s
o f t h e p r e s e n t
i n v e n t i o n ;
F I G .
6
i s
a
s c h e m a t i c p l a n
vieW of
2 s u i t e s
i n d e t a i l of a
t y p i c a l
8
s u i t e ,
r e s i d e n t i a l
u n i t
l a y o u t
o f a ? o o r o f a
h i g h
r i s e
b u i l d i n g ;
F I G .
7
i s
an
a l t e r n a t i v e s p r i n k l e r / c h i l l e d Water a r r a n g e
m e n t f o r
t y p i c a l ? o o r s ;
F I G . 8 i s a h o t
W a t e r
p i p i n g s c h e m a t i c ; and
F I G . 9 i s
a
c h i l l e d W a t e r
p i p i n g
s c h e m a t i c .
DETAILED DESCRIPTION OF THE
PREFERRED EMBODIMENT
As shoWn
i n
F I G S . 1 a a n d 1 b , c o n v e n t i o n a l
p r i o r
a r t
s y s t e m s f o r d i s t r i b u t i o n o f d o m e s t i c W a t e r i n a h i g h r i s e
c o m p r i s e v e r t i c a l Z o n e s Z o f 8 - 1 0
? o o r s ,
e a c h Z o n e h a v i n g
o n l y
o n e h o r i Z o n t a l l y
e x t e n d i n g s u p p l y
r u n o r d i s t r i b u t i o n
20
25
30
35
40
45
50
55
60
6 5
4
main MH
o r
d o m e s t i c
h o t
W a t e r
and o n e main MC
o r
d o m e s t i c c o l d
W a t e r .
From
t h e s e
c o l d
and o t
mains
MOMH,
s e t s of
Water
d i s t r i b u t i o n r i s e r s
e x t e n d
v e r t i c a l l y up
o r
d o W n
f o r d i s t r i b u t i o n t o each ?oor i n t h e
v e r t i c a l
Zone Z . I n
p a r t i c u l a r ,
p a i r s o f a h o t
a n d
c o l d r i s e r s PHC
a r e
p r o v i d e d
f o r
e a c h h o r i Z o n t a l l y a r r a n g e d s u i t e , e a c h p a i r P HC
s u b s e q u e n t l y
e x t e n d i n g v e r t i c a l l y t o s i m i l a r l y s i t u a t e d s u i t e s
a r r a n g e d o n e
above
another
on each ?oor
i n t h e
Zone
Z .
As
a
r e s u l t ,
t h e
p r i o r a r t d i s t r i b u t i o n s y s t e m f o r
a
b u i l d i n g
h a v i n g
a
t y p i c a l e i g h t s u i t e s p e r ? o o r c a n h a v e e i g h t p a i r s
PHC
o f
i s e r s ( l 6 r i s e r s ) e x t e n d i n g u p t h r o u g h
e a c h
? o o r
i n
a
Z o n e ,
i n
a d d i t i o n
t o a m a i n
c o l d Water supply r i s e r RC5,
a
h o t
W a t e r s u p p l y
r i s e r RHS and a h o t Water
r e c i r c u l a t i o n o r
r e t u r n
r i s e r RHR
a i d e d by a
d o m e s t i c
h o t
W a t e r
r e c i r c u l a t i o n
pump. Water p r e s s u r e
v a r i a t i o n betWeen t h e
loWermost and
t h e
u p p e r m o s t ? o o r s i s
a b o u t
3 0 - 4 0
p s i g .
With r e f e r e n c e t o F I G .
2 ,
i m p r o v e d e f ? c i e n c i e s
a n d
c o m f o r t c a n b e
a c h i e v e d
u s i n g a n i m p r o v e d
p i p i n g
s y s t e m
a c c o r d i n g
t o
a
? r s t embodiment.
P i p i n g
s a v i n g s a r e
r e a l i Z e d
b y r e p l a c i n g t h e p r i o r a r t
s y s t e m
o f 8
p a i r s
PHC o f i n - s u i t e
h o t
and
c o l d r i s e r s . I n c o n t r a d i s t i n c t i o n
t o
t h e m u l t i t u d e
of
i n - s u i t e r i s e r s r e q u i r e d i n t h e p r i o r a r t s y s t e m , o n e embodi
ment
of
t h e i n v e n t i o n
f o r
d o m e s t i c Water
d i s t r i b u t i o n
i s
s h o W n h a v i n g o n l y c o l d a n d h o t s u p p l y r i s e r s R C S , R H S , a n d
a
d o m e s t i c h o t W a t e r
r e t u r n
r i s e r RHR
e x t e n d i n g
v e r t i c a l l y
up
t h e
b u i l d i n g .
With r e f e r e n c e
t o F I G . 3 , and a s shoWn i n
g r e a t e r d e t a i l ,
e a c h
? o o r
s
s u p p l i e d W i t h d o m e s t i c c o l d W a t e r and d o m e s t i c
h o t
W a t e r
s u p p l y m a i n s MOMH o r p r o v i d i n g
d o m e s t i c
c o l d
and h o t
Water
s e r v i c e t o
domestic use
? x t u r e s
of
a c i l i t i e s 1 1 .
D o m e s t i c
c o l d
W a t e r i n t h e
s u p p l y
main MC s p r o v i d e d
f o r u s e
W i t h f a c i l i t i e s
1 1
a t each
s u i t e
a t
c o n v e n t i o n a l
p r e s s u r e s a t o r
l e s s
t h a n a ? r s t p r e s s u r e
t h r e s h o l d P l .
T y p i c a l l y
t h e maximum o f
h i s ? r s t t h r e s h o l d P 1 i s a b o u t
8 0
t o 8 5
p s i g .
S i m i l a r l y ,
h o t
W a t e r
f o r
d o m e s t i c u s e W i t h
f a c i l i t i e s
1 1 i s a l s o p r o v i d e d a t a second p r e s s u r e t h r e s h o l d
P 2
Which
i s
t y p i c a l l y
and s u b s t a n t i a l l y t h e
same a s
t h e ? r s t
t h r e s h o l d
P 1 .
I n
o r d e r
t o
p r o v i d e
Water
under s u f ? c i e n t p r e s s u r e
t o
more
t h a n one v e r t i c a l l y a r r a n g e d ?oor i n
a b u i l d i n g ,
e a c h s u c
c e s s i v e h i g h e r ? o o r e x p e r i e n c i n g a l o s s o f h y d r a u l i c
h e a d ,
t h e
c o l d W a t e r s u p p l y
r i s e r
RCS i s p r e s s u r i Z e d
t o a t h i r d
p r e s s u r e
t h r e s h o l d P 3 Which i s h i g h e r t h a n t h e d e s i r e d
domestic p r e s s u r e s o t h a t a
minimum
domestic p r e s s u r e
i s
m a i n t a i n e d ,
e v e n a t t h e h i g h e s t ? o o r s.
The h o t W a t e r s u p p l y
r i s e r RHS Which i s t y p i c a l l y c o n n e c t e d t o
t h e
c o l d W a t e r
s u p p l y r i s e r RCS t h r o u g h a h o t W a t e r h e a t e r
2 1 , a l s o
e x t e n d s
e i t h e r up o r doWn t h e b u i l d i n g , i s s u b j e c t t o t h e same
h y d r o s t a t i c h e a d
a n d
W i l l
o p e r a t e a t s u b s t a n t i a l l y
t h e
same
p r e s s u r e s .
A c c o r d i n g l y , a l o W e s t ?oor
i n
a Zone Z s s u p p l i e d
a t t h e g r e a t e s t p r e s s u r e W i t h p r e s s u r e
d i m i n i s h i n g
t o a
h i g h e s t ? o o r Which
i s s u p p l i e d
a t t h e l o W e s t p r e s s u r e .
The
p r e s s u r e
P 1 ,
P 2 o f W a t e r f o r d o m e s t i c
c o l d
and
h o t
Water use a t
f a c i l i t i e s 1 1
i n
t h e
s u i t e s
i s
c o n t r o l l e d
betWeen
t h e r e s p e c t i v e c o l d a n d h o t W a t e r r i s e r s
R C S , RHS
a n d t h e
d o m e s t i c
u s e
f a c i l i t i e s
1 1
i n c l u d i n g
plumbing
? x t u r e s s u c h
a s
s i n k s ,
W a s h i n g f a c i l i t i e s a n d t o i l e t s . H y d r o s t a t i c h e a d i s
managed u s i n g p r e s s u r e r e d u c i n g v a l v e s
( P R V ) 2 0
o r
2 2 , t h e
l o c a t i o n o f Which i s
p a r t i c u l a r
t o t h e
W a t e r
s u p p l y ;
more
p a r t i c u l a r l y
W h e t h e r
i t
i s d o m e s t i c c o l d
o r h o t W a t e r .
T y p i
c a l l y , t h e d o m e s t i c h o t
W a t e r
s y s t e m h a s a r e c i r c u l a t i o n
r e q u i r e m e n t t o e n a b l e
movement i n t o
t h e d o m e s t i c h o t
W a t e r
r e t u r n r i s e r R R and t o maintain h o t
Water t e m p e r a t u r e s With
d y n a m i c r e f r e s h i n g W i t h h o t W a t e r
c i r c u l a t i o n .
The
t o p
? o o r
and
upper ? o o r s m a y have p r e s s u r e s a t ,
o r
l e s s t h a n , t h e ? r s t
and s e c o n d
p r e s s u r e t h r e s h o l d s P l , P 2 ,
and
t h u s
d o n o t
r e q u i r e
f u r t h e r p r e s s u r e r e d u c t i o n t h r o u g h
t h e
u s e o f PRVs.
8/17/2019 Us 7308906
14/18
U S
7 , 3 0 8 , 9 0 6
B2
5
H o w e v e r ,
l o w e r
? o o r s
h a v i n g
p r e s s u r e s g r e a t e r
t h a n
t h e
r e s p e c t i v e t h r e s h o l d s W i l l r e q u i r e
p r e s s u r e r e d u c t i o n .
F o r
s u c h
? o o r s ,
one
c o l d
W a t e r PRV 0
i s
p r o v i d e d
betWeen t h e
d o m e s t i c c o l d W a t e r r i s e r
RC5
a n d
t h e h o r i z o n t a l main
MC
a f f e c t i n g a l l c o l d W a t e r l i n e s b r a n c h i n g o i f
t h e r e f r o m .
T h e r e
f o r e , t h e p r e s s u r e t o t h e
f a c i l i t i e s
1 1
f o r
a l l s u i t e s i s con
t r o l l e d
by
t h e l o n e c o l d W a t e r PRV 2 0 . Upper ? o o r s , u n d e r
l e s s
h y d r a u l i c h e a d W i l l a l r e a d y h a v e a c c e p t a b l e d o m e s t i c
p r e s s u r e s and a c c o r d i n g l y ,
c o l d
W a t e r PRV’s can be o m i t t e d
f o r h o r i Z o n t a l
mains
MC o r t h e upper e i g h t
o r s o ? o o r s
W h i c h a r e a t t h e loWest p r e s s u r e s .
Hot
Water r e c i r c u l a t i o n betWeen h e h o t Water h e a t e r 21 o r
b o i l e r
2 1 b , t h e r i s e r s
R H S , R H R ,
a n d
f o r
e a c h
d i s t r i b u t i o n
main
MH,
i s m a i n t a i n e d
a t f u l l
h y d r o s t a t i c p r e s s u r e s s o a s t o
e n a b l e
r e c i r c u l a t i o n o f
r e t u r n h o t
W a t e r t h r o u g h
t h e r e t u r n
r i s e r
RHR
and
t o
t h e h o t W a t e r h e a t e r
2 1 .
A i n g l e
PRV a n n o t
be employed on t h e h o t Water m a i n M r e l s e How n t o t h e
h i g h e r p r e s s u r e
r e t u r n
r i s e r
RHR
i s
n o t
p o s s i b l e . T h e r e f o r e ,
on each ? o o r , a p l u r a l i t y
o f
h o t W a t e r PRVs 22 a r e p r o v i d e d ,
one
a t each s u i t e .
E ac h
PRV e d u c e s t h e
p r e s s u r e betWeen
t h e
f u l l p r e s s u r e o f
t h e
h o t W a t e r main MH nd
t h e
a c t u a l
domestic use f a c i l i t i e s
1 1
a t domestic s e r v i c e p r e s s u r e s .
A g a i n , h o t W a t e r
PRV’s
22
can be o m i t t e d
f o r t h e
upper
?oors
Which a r e a t
t h e
loWest p r e s s u r e s .
The
r e c i r c u l a t i o n
o f t h e
h o t
W a t e r s y s t e m c o m p r i s e s t h e
d i s t r i b u t i o n
main
MH x t e n d i n g ,
from
t h e
h o t
W a t e r r i s e r
R H S , t o e a c h s u i t e S l - S 8 i n s e r i e s and i n c l u d i n g
a r e t u r n
l i n e
2 3
a f t e r t h e
plumbing
s t u b o f f
o f
t h e l a s t s u i t e S 8 , and a How
c o n t r o l v a l v e o r b l e e d
v a l v e 24
betWeen t h e r e t u r n
l i n e
23
and t h e
d o m e s t i c
h o t
W a t e r
r e t u r n
r i s e r
RHR.
T h e b l e e d v a l v e
24
e n a b l e s
c i r c u l a t i o n of
a s m a l l
and
minimum c o n t i n u a l f l o w o f
h o t
W a t e r ( f o r
e x a m p l e
a b o u t
1 / 2
gpm) t o m a i n t a i n t h e t e m p e r a t u r e o f t h e
h o t
W a t e r a d j a c e n t
e a c h f a c i l i t y ’ s t a p s . Such a s y s t e m i s d e s c r i b e d i n
g r e a t e r
d e t a i l
b e l o W .
A l t e r n a t i v e l y ,
i n
a n o t h e r
embodiment, s u c h a s i n Warmer
environments
Wher e
f a n - c o i l
h e a t e r s a r e n o t employed, one
can
e l i m i n a t e t h e
d o m e s t i c
h o t
W a t e r
r e t u r n
r i s e r
RHR
and
i n s t e a d a p p l y
e l e c t r i c a l h e a t
t r a c i n g
t o
t h e
h o t W a t e r d i s t r i
b u t i o n mains
on each ? o o r .
T h i s a l s o
e l i m i n a t e s
t h e
need
f o r
r e c i r c u l a t i o n of
a s m a l l ?oW through a b l e e d v a l v e 2 4 . I n
s u c h a s
c a s e , t h e
d o m e s t i c
h o t
W a t e r s u p p l y main
MH an
be
con?gured t h e
same a s
t h e c o l d W a t e r s u p p l y main
MC,
W h e r e i n a s i n g l e PRV
s
a p p l i e d
t o r e d u c e
t h e p r e s s u r e o f t h e
e n t i r e
m a i n .
I n
v e r y
t a l l h i g h r i s e b u i l d i n g s , t h e h y d r o s t a t i c h e a d
c a n
b e
s i g n i ? c a n t .
To accommodate
l o W e r a n d
c o n v e n t i o n a l
p r e s s u r e
l i m i t s on Water d i s t r i b u t i o n
systems
such a s f a n - c o i l
e n v i r o n m e n t a l c o n t r o l s
and
h o t W a t e r
h e a t e r s , i t
i s conve
n i e n t t o
u s e
e l e v a t i o n a l , m u l t i - Z o n a l s y s t e m s t o l i m i t t h e
t h i r d
p r e s s u r e t h r e s h o l d
P 3 a p p l i e d a t e a c h Z o n e
Z .
With
r e f e r e n c e t o F I G .
4 ,
m u l t i p l e s y s t e m s
o f t h e
2 4 ? o o r
system i l l u s t r a t e d and s e t f o r t h i n FIG. 2 a r e
a p p l i e d
a s
needed
such
a s i l l u s t r a t e d i n t h e
c a s e
of a 72 s t o r y
b u i l d i n g
having t h r e e Z o n e s Z , Z , Z , o r i d e n t i ?e d a s Z 1 , Z 2 , Z 3 . Each of
t h e t h r e e
Zones
Z, Z, Z of about 24
?oors
each a r e ? t
With
a
d o m e s t i c
W a t e r b o o s t e r
s u p p l y
p ump 3 0 . I n
loW
r i s e b u i l d
i n g s ,
s o m e t i m e s t h e
m u n i c i p a l s u p p l y p r e s s u r e i s
s u f ? c i e n t
f o r
a b o u t
e i g h t
? o o r s
o r s o , hoWever f o r h i g h ? o o r s ,
a
b o o s t e r
pump
i s r e q u i r e d .
The b o o s t e r
p ump 30 s u p p l i e s W a t e r
p r e s s u r e
t o t h e c o l d
W a t e r
r i s e r
RC5
and t o t h e h o t
W a t e r
r e c i r c u l a t i o n s y s t e m
R H S , R H R .
The b o o s t e r pump
3 0
s u p p l i e s t h e l o W e s t
? o o r
o f
e a c h
Z o n a l
s y s t e m a t
a
t h i r d
p r e s s u r e t h r e s h o l d P 3
o f a b o u t
1 2 5 - 1 4 0
p s i .
The p r e s s u r e c o n t r o l o f
W a t e r t o d o m e s t i c
f a c i l i t i e s
1 1
i s
r e q u i r e d
f o r
a b o u t
1 6
o r
s o
o f
t h e
24
? o o r s ,
t h e
upper
e i g h t o r
s o
? o o r s b e i n g s u b s t a n t i a l l y a t o r l e s s t h a n
20
25
30
35
40
45
50
55
60
6 5
6
t h e
? r s t a n d
s e c o n d t h r e s h o l d p r e s s u r es
P 1 , P 2 . F o r e x a m p l e ,
t h e b o o s t e r p ump 30 f o r
e a c h
Zone
o f
1 - 2 4 ? o o r s s u p p l i e s t h e
g r o u n d o r
l o W e s t
? o o r a t
a b o u t
1 2 0 p s i W i t h t h e t o p
?oor
(eg 2 4 ” ’ ? o o r ) o f e a c h Z o n e
b e i n g
s u p p l i e d a t
d i m i n i s h e d
h y d r o s t a t i c head a t a minim um o f
a b o u t
40 p s i . A oW
r i s e
b o o s t e r p ump 30,30L s u p p l i e s t h e l o W e r Z o n e , a m i d - r i s e
b o o s t e r p ump
30,30M
s u p p l i e s t h e m i d d l e Z o n e and a
h i g h
r i s e b o o s t e r
pump 30,30H s u p p l i e s t h e t o p
Z o n e .
Th e h o t W a t e r
h e a t
e x c h a n g e r , b o i l e r
2 1 b , o r h e a t er
2 1
u s e d i n
t h e
d o m e s t i c
h o t
W a t e r
s y s t e m
i s c o n v e n i e n t l y p l a c e d
a t e a c h u p p e r
? o o r o f
e a c h Z o n e Z
(eg
t h e 4 8 t h ? o o r ,
72M
?oor, . . .
) . Accordingly,
th e
W a t e r booster
pumps
3 0 L , 3 0 M ,
30H a l s o s u p p l y e a c h h o t W a t e r
h e a t e r
2 1 W i t h makeup W a t e r
a t t h e
minimum
r e s s u r e
f o r t h e
Zone Z .
S i m i l a r l y , t h e m i d - r i s e
W a t e r
b o o s t e r p ump 30M
o r
? o o r s
2 5 - 4 8 W i l l
s u p p l y
t h e 2 5 t h ? o o r a t
a b o u t
1 2 5 - 1 4 0
p s i g
a n d
s u p p l y t h e
W a t e r
h e a t e r
21 a t
t h e 4 8 t h ?oor
a t
a
mi n imum of
40 p s i g .
The
h i g h - r i s e
W a t e r b o o s t e r
pump 30H
f o r ? o o r s
4 9 - 7 2
W i l l
s u p p l y t h e 4 9 t h ? o o r a t
a b o u t
1 2 5 - 1 4 0
p s i g
a n d
s u p p l y t h e W a t e r h e a t e r 2 1 a t t h e 7 2 ' ” ?oor t a
m i n i m um of
4 0
p s i g .
I n e a c h Zone o f 24 ? o o r s , each of
t h e
a b o u t
1 6
loWer
e l e v a t i o n
y e t
h i g h e r
p r e s s u r e
? o o r s
a r e ? t
W i t h
a
PRVs
20
f o r
t h e c o l d W a t e r main
MC
nd PRVs
22 a r e a p p l i e d
b e f o r e
e a c h
s u i t e
from t h e
f u l l p r e s s u r e h o t W a t e r
main MH.
I n a n o t h e r embodiment,
some
a d d i t i o n a l e f ? c i e n c i e s a r e
r e a l i Z e d When p l u m b i n g
f o r
h e a t i n g a n d
c o o l i n g
f a n - c o i l s
4 0 , t y p i c a l l y p r o v i d e d o n e p e r s u i t e ,
a r e t i e d i n t o
t h e
s p r i n k l e r a n d d o m e s t i c
s y s t e m s . T h i s
i s
a c h i e v e d
b y
a d a p t
i n g a s y s t e m
i n Which
t h e c h i l l e d - W a t e r
s u p p l y a n d
r e t u r n
r i s e r s a r e p a r t of
a
combined
c h i l l e d - W a t e r
and s p r i n k l e r
s y s t e m . An
e x a m p l e
o f
s u c h
a s y s t e m i s s e t
f o r t h i n
U . S . P a t .
N o . 5 , 1 8 3 , 1 0 2
t o
C l a r k ,
t h e e n t i r e t y o f
W h i c h
i s
i n c o r p o r a t e d
h e r e i n
by r e f e r e n c e .
Economies
a r e
achieved Where
one
need n o t plumb
n eW
o r
i n d e p e n d e n t
r i s e r s f o r
i n d e p e n d e n t
c h i l l e d and i n d e p e n d e n t h e a t e d W a t e r
f o r f a n - c o i l s Where
c h i l l e d W a t e r c a n b e p r o v i d e d
t h r o u g h
e x i s t i n g s p r i n k l e r
r i s e r s
and
h e a t e d W a t e r can
be
p r o v i d e d
from
d o m e s t i c h o t
W a t e r
s u p p l y r i s e r s . The
s y s t e m
o f C l a r k
c a n
be used t o
s a t i s f y s p r i n k l e r n e e d s , d o m e s t i c h o t
W a t e r
p u r p o s e s a n d
f a n - c o i l s u p p l y .
With e f e r e n c e t o F I G .
5 ,
f a n - c o i l s 40
can be
t i e d i n t o b o t h
a
c h i l l e d
W a t e r s p r i n k l e r RS5
r i s e r ,
such a s a s t a n d a l o n e
c h i l l e d
W a t e r system
o r a s p a r t
of
t h e m u l t i p u r p o s e c h i l l e d
s p r i n k l e r s y s t e m o f C l a r k , a n d i n t o a h e a t e d W a t e r
r i s e r
RHS
Which
can
i n c l u d e a
domestic
h o t
Water
s y s t e m .
T h e
f a n
c o i l s 40
can o p e r a t e a t t h e t h i r d p r e s s u r e t h r e s h o l d P 3 o r f u l l
p r e s s u r e a v a i l a bl e
from
t h e r i s e r s f o r
each
Zone Z . T h e r e f o r e ,
a d d i t i o n a l p i p i n g i s n o t r e q u i r e d f o r t h e s y s t e m o f
f a n - c o i l s
4 0
s e p a r a t e
f r o m
t h e
p r e - e x i s t i n g s p r i n k l e r a n d
d o m e s t i c h o t
W a t e r s y s t e m s .
As shoWn i n FIGS. 5
and
, a t y p i c a l
?oor
o f a m u l t i - s t o r y
b u i l d i n g ,
h a v i n g
8 s u i t e s
p e r
? o o r ,
i n c l u d e s
a
? r e
s p r i n k l e r
p i p i n g
s y s t e m
c o m p r i s i n g a t l e a s t o n e
c h i l l e d - W a t e r
s u p p l y
s t a n d p i p e o r r i s e r
R S 5 , a c h i l l e d - W a t e r r e t u r n
s t a n d p i p e o r
r i s e r
R S R , a p l u r a l i t y o f c h i l l e d - W a t e r s u p p l y a n d r e t u r n
mains
MPG
o e a c h f a n - c o i l 4 0 .
C h i l l e r s 25
and h e a t e r s 2 1
( t y p i c a l l y b o i l e r s ) m a y b e
s i t u a t e d
beloW o r a t o p t h e b u i l d
i n g .
A
o m e s t i c
c o l d W a t e r
r i s e r
RC5
s u p p l i e s t h e
c o l d W a t e r
main
MC o r d i s t r i b u t i o n
o f c o l d
W a t e r t o t h e d o m e s t i c
f a c i l i t i e s 1 1 i n c l u d i n g
p l u m b i n g
? x t u r e s
i n
t h e s u i t e s , W h i c h
a r e pressure reduced t o domestic use
p r e s s u r e s
a t
a
PRV 0 ,
p o s i t i o n e d b e t W e e n t h e
r i s e r RC5
a n d t h e
s u p p l y
m a i n
MC
Which i s p i p e d t o
e a c h o f
t h e s u i t e s .
The
d o m e s t i c
h o t - W a t e r p i p i n g
s y s t e m d i s t r i b u t e s
h o t
W a t e r
t o
v a r i o u s
p o r t i o n s o f t h e
b u i l d i n g a n d
t h e
p l u m b i n g
8/17/2019 Us 7308906
15/18
U S
7 , 3 0 8 , 9 0 6
B2
7
? x t u r e s 1 1 i n
t h e
s u i t e s a n d i n c l u d e s
t h e
h o t - W a t e r
s u p p l y
r i s e r R H S , t h e h o t - W a t e r r e t u r n r i s e r R H R , h o t W a t e r s u p p l y
mains
M
ne
f o r each ? o o r , and a p l u r a l i t y of PRV’s
22 o f f
o f e a c h
main
MH
o s u p p l y p r e s s u r e - r e d u c e d
h o t
W a t e r t o
e a c h o f t h e
s u i t e s
i n c l u d i n g a p l u r a l i t y o f
h o t - W a t e r
d i s t r i
b u t i o n
l i n e s a s out?ow p o i n t s
such
a s f a u c e t s i n a bathroom
or in
a kitc h en
a r e a .
A p l u r a l i t y o f f a n - c o i l u n i t s 4 0
a r e
l o c a t e d t h r o u g h o u t
t h e
b u i l d i n g
and
more p a r t i c u l a r l y
i n
e a c h s u i t e . Each
f a n - c o i l
u n i t i n c l u d e s a
hot-Water c i r c u i t and
a c h i l l e d - W a t e r
c i r c u i t
t h a t
can a c c e s s
Water
c i r c u l a t i n g i n t h e
domestic
h o t - W a t e r
p i p i n g
s y s t e m a n d c h i l l e d
W a t e r
s y s t e m , r e s p e c t i v e l y . E a c h
f a n - c o i l
c a n
s e l e c t i v e l y
access hot Wat e r or c h i l l e d Wat e r
t o
meet t h e
h e a t i n g and c o o l i n g demand. Air c i r c u l a t e d
o v e r a
h o t o r
a
c h i l l e d c o i l p r o v i d e s h e a t i n g o r c o o l i n g
a b i l i t y .
With r e f e r e n c e t o F I G .
6 ,
i n a
f a n - c o i l
embodiment
i l l u s t r a t e d
h e r e i n
i n
g r e a t e r
d e t a i l , a 2 c h i l l e d W a t e r d i s t r i
b u t i o n
main MFC s p r o v i d e d e x t e n d i ng
o f f
o f a
c h i l l e d
W a t e r
6
r i s e r
R S S o f a s p r i n k l e r
s y s t e m . C h i l l e d
W a t e r s p r i n k l e r
l i n e s 4 7 a r e i n s u l a t e d s o a s
t o
prevent condensation. An
a d d i t i o n a l s p r i n k l e r r i s e r R S R i n t h e s t a i r W e l l W i t h ? o o r
d i s t r i b u t i o n on
l l ?oors s
u t i l i Z e d a s t h e r e t u r n
system
from
a l l
f a n - c o i l s 4 0 .
The
s p r i n k l e r
s u p p l y
r i s e r
R S S
i n a
s e c o n d
s t a i r W e l l
i s
u t i l i Z e d a s s u p p l y f o r a l l f a n - c o i l s 4 0 . A c t u a l ? r e
s p r i n k l e r d i s t r i b u t i o n t o s p r i n k l e r l i n e s 4 7 i s t y p i c a l t o e a c h
of t h e
e i g h t s u i t e s on
a
? o o r .
C h i l l e d W a t e r i s p r o v i d e d
t o t h e f a n - c o i l s
40 a t
f u l l
s p r i n k l e r
r i s e r
s u p p l y a n d r e t u r n p r e s s u r e s .
A
s p r i n k l e r
j o c k e y p ump i n c o n j u n c t i o n W i t h a b o o s t e r p ump 3 0 , a s
r e q u i r e d ,
p r o v i d e s
e n o u g h
p r e s s u r e a t t h e
g r o u n d ? o o r
t o
maintain a minimum
r e s
s u r e
a t
t h e t o p ? o o r . T h e m i n i m u m
p r e s s u r e i s
t y p i c a l l y a t
l e a s t a b o u t
4 0
p s i g
a n d i n
some
j u r i s d i c t i o n s
c a n be
a s
h i g h
a s a b o u t
1 0 0 p s i g .
The
f a n - c o i l s 4 0 a r e a l s o p r o v i d e d W i t h
f u l l y o p e n / c l o s e
o r m o d u l a t i n g c o n t r o l
v a l v e s
4 1
W i t h a u t o m a t i c
c h a n g e o v e r
t h e r m o s t a t s .
I n d i v i d u a l p r e s s u r e r e d u c i n g
v a l v e s
PRV’s
22 a r e
p r o
v i d e d
o f f
o f
t h e
h o t W a t e r
l i n e s t o
each
f a n - c o i l 4 0 ,
a t
each
s u i t e , t o r e t a i n f u l l h o t W a t e r r i s e r p r e s s u r e t o
t h e
f a n - c o i l s
4 0 s o t h a t Water pressure ensures r e t u r n t o t h e domestic
Water
b o i l e r s
21b While
loWer
p r e s s u r e s a r e a v a i l a b l e
a t
t h e
f a c i l i t i e s
1 1 a s
r e q u i r e d .
R i s e r
p r e s s u r e a t
a f a n - c o i l
40
c a n n o t
be
reduced
o r
e l s e
s u c h
p r e s s u r e - r e d u c e d h o t Water
c o u l d n o t r e t u r n
t o
t h e r e t u r n
r i s e r RHR and r e c i r c u l a t e t o
t h e
hot
Water
h e a t e r s 21 o r
b o i l e r s 2 1 b .
The
? r s t
p r e s s u r e t h r e s h o l d P l
a t t h e c o l d W a t e r d i s t r i b u
t i o n
main
MC s
r e d u c e d
t o a b o u t 6 0 p s i g Which s a l s o a b o u t
t h e s e c o n d
p r e s s u r e t h r e s h o l d
P 2
f o r
t h e
h o t W a t e r
d i s t r i b u
t i o n l i n e s i n
e a c h
s u i t e . A i x i n g
v a l v e 4 2 ,
i f r e q u i r e d ,
r e d u c e s t h e Water
t e m p e r a t u r e
a s
r e q u i r e d
f o r r e s i d e n t i a l u s e .
The
h o t W a t e r s u p p l y , d e p e n d i n g
on d e s i g n o f t h e
s y s t e m ,
m a y be anyWher e from 1 7 0 0 F . t o
1 4 0 °
and can be reduced
i n t e m p e r a t u r e t o
t h e 1 1 0 °
F . - 1 4 0 ° F . r a n g e a s r e q u i r e d . Th e
p r e s s u r e - r e d u c e d h o t W a t e r
i s
d i s t r i b u t e d
t o
t h e p l u m b i n g
? x t u r e s
1 1 i n
t h e
s u i t e s .
Th e
p r e s s u r e reduced
c o l d
W a t e r
f o r
t h e
?oor and
t h e
p r e s s u r e
reduced
d o m e s t i c h o t
Water a t each
s u i t e c a n b e
m e t e r e d
a t e a c h
s u i t e ,
i f r e q u i r e d .
The c o l d
W a t e r PR V
2 0 i s p r o v i d e d f o r
r e d u c i n g
t h e
p r e s s u r e of
t h e
c o l d
Water
d i s t r i b u t i o n t o a l l s u i t e s on
t h e
?oor and i n d i v i d u a l c o l d
Water
branches a r e d i r e c t e d t o
plumbing ? x t u r e s 1 1 and t o t h e mixing v a l v e s
42
a s n e c e s
s a r y t o r e d u c e t h e
m a x i m u m
h o t W a t e r t e m p e r a t u r e f o r
d o m e s t i c
u s e .
The s p r i n k l e r
s u p p l y
r i s e r R S 5 , r e t u r n r i s e r R S R
and s p r i n k l e r l i n e s 47 a r e
n o t
p r e s s u r e r e d u c e d .
At t h e e n d
o f
t h e h o t W a t e r main MH r
s u p p l y l o o p
a f t e r
h a v i n g s u p p l i e d a l l s u i t e s ,
i t
i s p r e f e r a b l e t o i n s t a l l a How
c o n t r o l valve 24
s e t a t
about
1 / 2
gpm o a s s u r e t h a t t h e r e i s
20
25
30
35
40
45
50
55
60
6 5
8
a c o n t i n u a l How and s u p p l y o f
h o t
W a t e r i n t h e d i s t r i b u t i o n
main
on
e a c h
? o o r a n d a d j a c e n t
e a c h
s u i t e .
T h i s i s i m p o r t a n t
e s p e c i a l l y i n
t h e summe r
months W h e n no
h o t Water i s
?oWing t h r o u g h
t h e
c o i l s . More p r e f e r a b l y ,
i n
t h e c a s e o f
v e r y
l a r g e r e s i d e n t i a l s u i t e s ,
t h e
How c o n t r o l v a l v e 2 4 c a n b e
l o c a t e d
i n
each s u i t e t o a s s u r e
t h a t
t h e
h o t Water r e a c h e s
t h e
s u i t e ’ s
f a u c e t s i n
l e s s
t i m e .
T h i s g e n e r a l d i s t r i b u t i o n
s y s t e m
i s a l s o u t i l i Z e d
i n
most
o f
t h e
u p p e r
? o o r s
o f
a h i g h r i s e b u i l d i n g , h o W e v e r ,
o n c e
t h e
p r e s s u r e
i n t h e c o l d and h o t W a t e r r e d u c e s t o a p p r o x i m a t e l y
8 0 - 8 5 p s i g o r
l e s s ,
PRV’s 2 2 , 2 0 on b o t h
h o t
and
c o l d
W a t e r
r e s p e c t i v e l y
a r e
n o
l o n g e r r e q u i r e d .
T h i s
d i s t r i b u t i o n
s y s t e m c a n a l s o b e
a d a p t e d
t o d i s t r i b u t e
t o tWo a d j a c e n t ?oors a t
o n c e .
For example, i f one r u n s
r e - c i r c u l a t i n g a n d s p r i n k l e r / c h i l l e d
W a t e r
s u p p l y
i n
t h e c e i l
i n g i t m a y b e u s e d t o f e e d b o t h a d j a c e n t ? o o r s a b o v e
a n d
b e l o W . F o r
example
i n
t h e
c a s e o f
a
f o u r - s t o r y b u i l d i n g ,
t h e
c o l d W a t e r and
h o t
W a t e r d i s t r i b u t i o n
mains
MOMH a y
o n l y b e i n t h e c e i l i n g o f t h e ? r s t a n d
t h i r d
? o o r s .
I n some b u i l d i n g s t h e r e a r e
t h r e e
o r mor e s p r i n k l e r
s t a n d p i p e s
R S S , R S R d u e t o d i s t a n c e s
a n d
c o d e r e q u i r e m e n t s ,
a n d t m a y b e most
e c o n o m i c a l
t o l e t a l l s p r i n k l e r s t a n d p i p e s
o r
r i s e r s
RSS,RSR
s e r v e
a s
r e t u r n
l i n e s
o r
r i s e r s
RSR
f o r
t h e
c h i l l e d Water a n d r u n
a
dedicated r i s e r f o r c h i l l e d Water
s u p p l y
( n o t s h o W n ) . T h i s m a y a l s o b e done on
some
b u i l d
i n g s Which r e q u i r e more
t h a n
one
? r e Zone
p e r
? o o r .
With r e f e r e n c e t o F I G . 7 , one o t h e r o p t i o n t o t h e
d i s t r i
b u t i o n s y s t e m
i s t o h a v e t h e s p r i n k l e r s t a n d p i p e RS5 on o n e
s t a i r W e l l s e r v e
a s
a supply a n d d i s t r i b u t e
c h i l l e d
Water
t hr o ug h e v e r y
other ?oor 1 ,
3 , 5 ,
7 . . . e t c . This Wo ul d mean
t h a t
c h i l l e d Water
t a k e - o f f
t o f a n - c o i l s
40 on t h e
? r s t
?oor
Would
a l s o
f e e d u p
t o
t h e
f a n - c o i l
i n
t h e s u i t e d i r e c t l y a b o v e
on
t h e s e c o n d
? o o r .
T h e n , on ? o o r s 2 , 4 ,
6 ,
8 e t c . t h e
s p r i n k l e r
d i s t r i b u t i o n RSR
Would
come
o f f
t h e r e t u r n m a i n ,
Which c o u l d
b e a s p r i n k l e r
s t a n d p i p e i n
t h e o t h e r
s t a i r W e l l .
T h i s Would t h e n r e t u r n t h e c h i l l e d Water
from
t h e f a n - c o i l on
t h e s e c o n d
? o o r
a n d d r o p
doWn
i n e a c h
s u i t e t o
p i c k up t h e
r e t u r n f o r t h e
f a n - c o i l s
on
t h e
main
? o o r .
As
i l l u s t r a t e d ,
h o r i Z o n t a l s p r i n k l e r m a i n s MFC u p p l y ? r e s p r i n k l e r l i n e s 4 7
i n s u i t e s . Autocheck v a l v e a s s e m b l i e s
45
and a
sWing check
v a l v e 4 4
may b e r e q u i r e d b y t h e l o c a l
? r e
a u t h o r i t y . S h u t - o f f
v a l v e s
a r e t y p i c a l l y
employed t o i s o l a t e t h e c o o l i n g c o i l
s e c t i o n
of
a
h e a t / c o o l f a n - c o i l 4 0 .
I n
a n o t h e r
e m b o d i m e n t ,
t h e
a u t o m a t i c c h a n g e o v e r
t h e r
m o s t a t 4 1 i s o n l y e n a b l e d W i t h
a
t e m p e r a t u r e
s e t t i n g .
The
f a n - c o i l s
4 0 ,
t o
e n s u r e q u i e t
r u n n i n g ,
s h o u l d
o p e r a t e on
m e d i u m o r loW s p e e d and r u n a l l t h e t i m e .
T h i s
d o e s t h r e e
t h i n g s :
? r s t ,
i t
p r o v i d e s a
b a c k g r o u n d
W h i t e n o i s e
f r o m
t h e
moment t h e
r e s i d e n t
moves
i n and
t h e
r e s i d e n t
q u i c k l y
a c c l i m a t i Z e s
t o t h e n o i s e and
d o e s
n o t
n o t i c e i t
compared
W i t h a f a n c y c l i n g on and
f f .
S e c o n d l y , c o n s t a n t c i r c u l a t i o n
b a l a n c e s
t h e
t e m p e r a t u r e t h r o u g h o u t
t h e
r e s i d e n c e . L a s t l y ,
s u c h c o n t r o l i s s i m p l e a n d a v o i d s
t h e
p r o b l e m s a s s o c i a t e d
W i t h e n a b l i n g a r e s i d e n t t o a d j u s t e a c h o f
f a n
s p e e d ,
f a n
o n / o f f ,
o r
t h e
a b i l i t y t o
m a n u a l l y c h a n g e o v e r f r o m
h e a t
t o
c o o l . A
i m p l e
s y s t e m i s
t y p i c a l l y t h e b e s t
s y s t e m .
T h e h e a t t r a n s f e r e l e m e n t s of f a n - c o i l s
40
a r e manufac
t u r e d
o f c o p p e r
o r
o t h e r m a t e r i a l Which i s a p p r o p r i a t e f o r
p o t a b l e W a t e r . They a r e t y p i c a l l y t e s t e d f o r a minim um o f
2 5 0 p s i g ,
t o W i l l s a f e g u a r d t h e s y s t e m
f o r
t a l l
b u i l d i n g s
Where b o t h
s p r i n k l e r
l i n e s
and
d o m e s t i c
W a t e r
l i n e s
a t t h e
l o W e r ? o o r s a r e a t r e l a t i v e l y h i g h p r e s s u r e s .
P r e f e r a b l y, t h e c o n t r o l v a l v e 4 1 on t h e h o t s u p p l y t o
t h e
f a n - c o i l 4 0 ,
Which
h a s b e e n c o n v e n t i o n a l l y o p e r a t e d o n
t e m p e r a t u r e
c o n t r o l
o n l y ,
i s noW p r e f e r a b l y a n d a d d i t i o n a l l y
? t t e d
W i t h
a t i m e r d e v i c e Which p e r i o d i c a l l y o p e n s t h e v a l v e
f o r 30
seconds
o r s o of How eac h
d ay
t o a s s u r e t h a t no
8/17/2019 Us 7308906
16/18
U S
7 , 3 0 8 , 9 0 6
B2
s t a g n a t i o n t a k e s
p l a c e i n
t h e
summer months When
t h e
h e a t i n g
does
n o t
come o n .
I n
more d e t a i l ,
t h e c o n t r o l
v a l v e
6 c a n b e a n a u t o m a t i c c h a n g e o v e r ( f r o m
h e a t
t o c o o l ) and
c o n t r o l s tWo c o n t r o l
v a l v e s
Whic h a r e e i t h e r 100% open o r
closed a s one
t y p e ,
a s Well a s a n automatic
changeover
thermostat W h i c h
modulates
one o r both c o n t r o l valves a s
a n o t h e r t y p e .
T h i s a s s u r es t h a t
t h e d o m e s t i c
h o t W a t e r , Which
s
p o t a b l e
W a t e r , d o e s n o t s t a g n a t e i n t h e f a n - c o i l s f o r months on e n d .
T h e
t h e r m o s t a t
can
be a d a p t e d
t o
p r o v i d e a
t i m e r
o v e r r i d e t o
open t h e c o n t r o l
v a l v e
d e s p i t e t h e r e
b e i n g n o a c t u a l
c a l l
f o r
h e a t .
S i m i l a r l y ,
a
h e a t i n g - o n l y t h e r m o s t a t c a n dump W a t e r from
f o r c e ?oWs and
hot
Water
u n i t
f a n - c o i l h e a t e r s on t h e same
b a s i s
a s
a b o v e . T h i s t h e r m o s t a t
i s t y p i c a l l y 1 20V
and W i l l
both open t h e c o n t r o l v a l v e and
t u r n
on t h e f a n
W h e n
h e a t i s
r e q u i r e d
a n d
i s i n c o r p o r a t e d W i t h
a t i m e r h a v i n g 3 0
s e c o n d s
of d u m p every 24 hours o r s o .
I n
some
c l i m a t e s ,
de-humidi?cation
may be
needed
t o
p r e v e n t
mould a n d o t h e r
h i g h h u m i d i t y p r o b l e m s
W h i c h c a n
o c c u r i n b u i l d i n g s . T h i s
can be
added
t o
t h e make-up a i r
s y s t e m
t o t h e b u i l d i n g .
W i t h
r e f e r e n c e
t o t h e h e a t i n g p i p i n g
s c h e m a t i c
o f F I G . 7 ,
tWo
pumps
5 1 , 5 1 a r e a r r a n g e d on t h e
domestic h o t
Water
r e t u r n l i n e o r r i s e r
RHR
from t h e b u i l d i n g and a r e o p e r a t e d
b y
a v a r i a b l e
f r e q u e n c y
d r i v e
( V FD)
5 2
W h i c h
t a k e s
i t s
s i g n a l
f r o m
p r e s s u r e g a u g e 5 3
b e f o r e
t h e pumps 5 1 , 5 1 . As
h o t Water i s
d raWn o f f f o r
domestic
u s e
i t needs
t o be
r e p l a c e d b y t h e c o l d
W a t e r
s u p p l y 5 4 . As t h e h e a t e d W a t e r
?oWs i n t o
f a n - c o i l s 4 0 , f o r c e ?oWs a t t h e b u i l d i n g e n t r a nc e s
and u n i t
h e a t e r s
i n p a r k a d e
and s t o r a g e
a r e a s ,
a
p r e s s u r e
d r o p i n t h e r e t u r n
p i p i n g
s i g n a l s
t h e
VFD
2 t o
ramp
up t h e
r e t u r n p u m p
o r
p ump s
5 1 , 5 1 t o maintain proper c i r c u l a t i o n
i n t h e
s y s t e m .
I f one p ump
5 1
W i l l
n o t b r i n g
t h e
p r e s s u r e
up
t o
r e q u i r e d
l e v e l s ,
t h e
s e c o n d p um p
5 1 , 5 1 comes
on
and
ramps u p
a s
r e q u i r e d . W h e n t h e
h e a t i n g i s n o t r e q u i r e d
t h r o u g h o u t
t h e b u i l d i n g , t h e
o n l y
p u m p i n g r e q u i r e d
i s
t h e
s m a l l amount
of
c i r c u l a t i o n
t o r e c i r c u l a t e t h e
a b o u t
1 / 2
gpm
t h r o u g h t h e v a l v e 24
on
t h e end o f t h e h o t
W a t e r s u p p l y
l i n e
23 on each
? o o r . This VFD ystem
on
t h e hot Water
s
a very
e f ? c i e n t pumping
s y s t e m .
I n
t h e
d e s c r i b e d
e m b o d i m e n t ,
p ump s 51,51 do n o t d e ad h e ad
a s they
do
on most conven
t i o n a l s y s t e m s . T h u s ,
a
minim um o f poWer i s r e q u i r e d t o
c i r c u l a t e t h e h o t W a t e r .
P r e f e r a b l y
t h e VFD 52 a l t e r n a t e s
pumps 51/51 on a 24 h o u r - b a s i s .
Pumps 5 5 c i r c u l a t e i n d i v i d u a l l y t h r o u g h t h e t W o s e p a r a t e
h e a t e r s
21
o r
b o i l e r s
21b from a
h o t Water s t o r a g e t a n k
5 6 .
These
pumps
55 and b o i l e r s 21b
a r e
c o n t r o l l e d by t h e
d i s c h a r g e t e m p e r a t u r e
T
t h r o u g h
t h e
u s e
of a
Tekmar
con
t r o l l e r CT r
s i m i l a r d e v i c e , Which t u r n s
one
b o i l e r
21b
on
loW ?re a s W e l l a s
t u r n s on
t h e
pump
55 f o r t h a t b o i l e r . I f
more h e a t
i s
r e q u i r e d t h e b o i l e r 21b s h i f t s t o h i g h ? r e and f
s t i l l
more
h e a t
i s
r e q u i r e d
t h e
second
b o i l e r
21b
comes on
loW ? r e
W i t h a c t u a t i o n o f
t h e
s e c o n d p ump 5 5 . The s y s t e m
i s d e s i g n e d
t o
a l t e r n a t e b o i l e r s 21b e v e r y
24
h o u r s and t can
be hooked i n t o a
DDC m o n i t o r i n g
s y s t e m , Which W i l l
i n d i c a t e i f t h e r e i s any m a l f u n c t i o n i n any o f t h e
above
m e n t i o n e d
e q u i p m e n t .
The
VFD
2
may
a l s o b e
employed
t o
c o n t r o l t h e
How on
t h e
c h i l l e d Water system a s
shoWn
i n
F I G .
8 .
T h e h o t W a t e r
s t o r a g e
t a n k
56
i s u s u a l l y
a
custom
m a d e
g l a s s l i n e d
s t o r a g e t a n k W h i c h h a s a d e q u a t e l y s i Z e d t a p p i n g s
s o
a s not t o r e s t r i c t How . I t c a n be a ny s i Z e i n terms of
volume
t o meet t h e r e q u i r e m e n t s o f t h e b u i l d i n g . TWo
o r
more
t a n k s
can e a s i l y be used a s W e l l and piped i n s e r i e s
a p p r o p r i a t e t o g o o d e n g i n e e r i n g p r i n c i p l e s .
20
25
30
35
40
45
50
55
60
6 5
1 0
E x p a n s i o n t a n k 5 7
i s
s i Z e d a c c o r d i n g t o g o o d
e n g i n e e r i n g
p r i n c i p l e s . W h e n i n u s e
i n a
t a l l
b u i l d i n g , Which
r e q u i r e s
p r e s s u r e
b o o s t e r s y s t e m ,
t h e e x p a n s i o n t a n k
i s
s i Z e d l a r g e r
a s
i t
s e r v e s
a s
a b u f f e r
f o r
t h e
p r e s s u r e
system.
Hot W a t e r
s u p p l y
58
c o n n e c t s t o t h e h o t
W a t e r
s u p p l y
r i s e r
RHS
f o r t h e b u i l d i n g , Which s e r v e s b o t h
d o m e s t i c
h o t W a t e r
a n d
b u i l d i n g h e a t i n g
h o t
W a t e r .
The d o m e s t i c h o t W a t e r
r e t u r n r i s e r
RHR
f o r t h e b u i l d i n g s u p p li e s t h e pumps 5 1 , 5 1 .
The c o l d W a t e r s u p p l y l i n e 5 4 t i e s i n t o t h e h o t W a t e r h e a t i n g
s y s t e m .
T h i s f a n - c o i l
system can hav e one
t o
an y n u mb e r of
b o i l e r s
21b a n d i f u s e d
c o n c u r r e n t l y f o r d o m e s t i c h o t
W a t e r ,
t h e s e b o i l e r s
Would
be d o m e s t i c W a t e r b o i l e r s .
TWo
b o i l e r s
21b,21b a r e shoWn.
T h i s
system can
Work
u s t
a s
W e l l
W i t h
b o i l e r s 21b
u s i n g
a d i f f e r e n t
f u e l
o r
an y o t h e r
means
of
h e a t i n g s u c h a s s o l a r ,
c e n t r a l
h e a t pump, h e a t o f f an e l e c
t r i c a l
g e n e r a t o r ,
h e a t g e n e r a t o r from a W a t e r - c o o l e d
c h i l l e r
or a n y other heat
s o u r c e .
The
e n t i r e
h o t W a t e r p i p i n g
s y s t e m
i s a l s o
t h e
d o m e s t i c
W a t e r system and i s
t h e r e f o r e
c l a s s i ? e d a s p o t a b l e W a t e r .
A c c o r d i n g l y , a l l p i p i n g i s s p e c i ? e d a s
c o p p e r , p l a s t i c , d u c t i l e
i r o n o r
another
m a t e r i a l ,
Which does not r u s t o r
c o r r o d e .
With
r e f e r e n c e
t o
t h e
c h i l l e d
W a t e r s c h e m a t i c o f F I G .
8 ,
t h e c h i l l e d W a t e r s y s t e m t i e s i n t o t h e
s p r i n k l e r
s u p p l y R S S
and r e t u r n r i s e r s RSR i n t h e s t a i r W e l l s . The c h i l l e d
W a t e r
s u p p l y R S S o t h e s p r i n k l e r s t a n d p i p e r i s e r i s i n o n e s t a i r W e l l .
The
c h i l l e d W a t e r - r e t u m RSR comes
from
t h e s p r i n k l e r
s t a n d p i p e r i s e r
i n
t h e
o t h e r
s t a i r W e l l . A
r e s s u r e
b y p a s s
v a l v e
6 0 i s
p r o v i d e d
f o r t h e
c h i l l e d
W a t e r s y s t e m .
An
i r s e p a r a t o r
6 1 i s
t y p i c a l
t o a
c h i l l e d
W a t e r
p i p i n g
s y s t e m c o m p l e t e W i t h
a i r
v e n t
6 2 .
E x p a n s i o n
t a n k 6 3
i s
s i Z e d a c c o r d i n g t o good
e n g i n e e r i n g
p r a c t i c e s . B y p a s s ? l t e r a s s e m b l y 6 4 ? l t e r s t h e
W a t e r
i n
t h e
s y s t e m .
C h i l l e r
b a r r e l 65
i s
l o c a t e d
i n s i d e a
mechanical
room
s o
a s t o e l i m i n a t e t h e need f o r g l y c o l on t h e c h i l l e d
Water
s y s t e m .
T h i s i s t y p i c a l f o r
c l i m a t e s W h e r e
t h e
o u t s i d e
t e m p e r a t u r e g o e s beloW f r e e Z i n g . I n Warmer
c l i m a t e s ,
t h e
b a r r e l
6 5 c a n be
l o c a t e d
o u t s i d e
i n
t h e
c h i l l e r
p a c k a g e .
R e f r i g e r a n t l i n e s
6 6 e x t e n d from t h e
c h i l l e r b a r r e l
6 5
t o t h e
c h i l l e r
25 W h i c h can
be
e i t h e r a i r - c o o l e d o r Water c o o l e d .
M o t o r i z e d
c o n t r o l
v a l v e 67
c l o s e s
W h e n t h e ? r e a l a r m i s
a c t i v a t e d . T h i s i s o n l y r e q u i r e d i f t h e l o c a l ? r e m a r s h a l l
r e q u i r e s t h a t
i t
b e
i n s t a l l e d .
P r e s s u r e gauge 6 8 on t h e s u p p l y
l i n e t o
t h e s p r i n k l e r
s t a n d p i p e
r i s e r RSS
and p r e s s u r e
gauge
6 9
on
t h e r e t u r n l i n e
RSR
from
t h e o t h e r
s p r i n k l e r s t a n d p i p e r i s e r a r e
s e n s o r s f o r
c o n t r o l of t h e c h i l l e d Water p um p
7 0 .
V a r i a b l e f r e q u e n c y
d r i v e
( V FD) 7 1
o p e r a t e s
o n
t h e
d i f
f e r e n t i a l p r e s s u r e ( 6 8 , 6 9 ) b e t W e e n t h e s u p p l y a n d r e t u r n .
T h i s VFD
e g u l a t e s t h e
s p e e d
o f
t h e c h i l l e d W a t e r
pump 7 0 .
T h i s
VFD
0 c o u l d
b e combined
W i t h
t h e
h e a t i n g
VFD
2
i n
one p a n e l .
Th e c h i l l e d W a t e r p um p 70 c o u l d be p a r t
of
a
tWo-pump
s y s t e m s i m i l a r t o t h a t d e s c r i b e d
F I G .
7 . I f t h i s s y s t e m
i s
l o c a t e d
i n a p r e d o m i n a n t l y h o t
c l i m a t e ( e . g .
A r i Z o n a ,
USA)
i t i s very i m p o r t a n t
t o hav e
tWo pumps
s o a s t o
o p e r a t i o n a l l y
a v a i l a b l e f o r
c o o l i n g i f one pu p Were t o break
doWn.
P r e f e r a b l y o r
a l t e r n a t i v e l y ,
e v a p o r a t i v e c o n d e n s e r s o r
o t h e r
i n n o v a t i v e means can be added t o t h i s system t o
i n c r e a s e t h e e f ? c i e n c i e s
o f
t h e c h i l l e r p l a n t .
C e n t r a l g r o u n d
s o u r c e h e a t pumps can
be
u t i l i Z e d
v e r y
e f f e c t i v e l y With
t h e
s y s t e m
a s W e l l . The s p r i n k l e r
a l a r m p a n e l
on h i s
s y s t e m i s
programmed o
a d a p t
t o
t h e
f a c t t h a t W a t e r
?oWs
t h r o u g h t h e
Ho w
s W i t c h e s
on each
? o o r . Th e l o g i c i s
a s
f o l l o W s : T h e ? r e
a l a r m
p a n e l
i s p r o g r a m m e d t o
i g n o r e
t h e How
s W i t c h
s i g n a l
from each
?oor n t i l
such t i m e a s t h e main
? o W
s W i t c h a t t h e
W a t e r e n t r y t o t h e ? r e s p r i n k l e r s y s t e m
t r i g g e r e d .
W h e n h i s
8/17/2019 Us 7308906
17/18
U S
7 , 3 0 8 , 9 0 6
B2
1 1
h a p p e n s ,
W a t e r
i s
d i s c h a r g i n g from a s p r i n k l er head o r h o s e
s t a t i o n .
The
p a n e l i s
programmed
t o s e n d a s i g n a l t o
immediately
s h u t d o W n t h e
c h i l l e d W a t e r
p um p
o r pumps.
T h i s
W i l l s t o p a l l
How t h r o u g h t h e
c h i l l e d
W a t e r s y s t e m
W i t h i n
a feW s e c o n d s .
A f t e r
30 s e c o n d s d e l a y , t h e
p a n e l i s
programmed
t o
i n d i c a t e How on
a l l
t h e How s W i t c h e s .
T h e r e f o r e
t h e
? r e d e p a r t m e n t c a n
i d e n t i f y a t What
l e v e l
t h e
s p r i n k l e r
s y s t e m
i s
d i s c h a r g i n g .
While a p r e f e r r e d embodiment o f t h e
i n v e n t i o n
h a s been
i l l u s t r a t e d a n d d e s c r i b e d , i t
W i l l
b e a p p r e c i a t e d t h a t v a r i o u s
c h a n g e s
c a n
b e made
t h e r e i n
W i t h o u t d e p a r t i n g
from t h e
s p i r i t a n d s c o p e
o f
t h e i n v e n t i o n . C o n s e q u e n t l y , W i t h i n t h e
s c o p e
o f t h e appended c l a i m s ,
i t i s t o
b e
u n d e r s t o o d t h a t
t h e
i n v e n t i o n
c a n be
p r a c t i c e d o t h e r W i s e t h a n a s s p e c i ? c a l l y
d e s c r i b e d h e r e i n .
T h e embodiments of h e
i n v e n t i o n
f o r
Which
an
e x c l u s i v e
p r o p e r t y o r p r i v i l e g e s
i s claimed
a r e d e ? n e d a s f o l l o W s :
1 .
A
y s t e m
f o r t h e d i s t r i b u t i o n
o f
W a t e r i n a h i g h r i s e
b u i l d i n g
h a v i n g
m u l t i p l e s e r v i c e d ? o o r s
e a c h
? o o r
h a v i n g
one
o r
mor e s u i t e s s e r v i c e d With domestic
hot
a n d cold
W a t e r , t h e s y s t e m c o m p r i s i n g :
a domestic h o t Water h e a t e r ;
a
d o m e s t i c h o t W a t e r
r i s e r ,
? u i d l y c o n n e c t e d
t o
t h e
h o t
W a t e r h e a t e r , i n
Which
h y d r o s t a t i c
p r e s s u r e
v a r i e s W i t h
e l e v a t i o n ;
a
d o m e s t i c h o t W a t e r
s u p p l y
main
e x t e n d i n g
from
t h e
d o m e s t i c
h o t
Water
r i s e r a t each s e r v i c e d ?oor t o each
of one
o r more
s u i t e s i n s e r i e s
f o r s e r v i c i n g
domestic
? x t u r e s a t
t h e
s u i t e s ;
a d o m e s t i c
h o t
W a t e r r e t u r n
r i s e r f o r
r e t u r n i n g
t h e domes
t i c
h o t W a t e r from t h e
d o m e s t i c
h o t W a t e r s u p p l y main
t o
t h e
h o t
W a t e r h e a t e r and e s t a b l i s h i n g
c i r c u l a t i o n
t h e r e t h r o u g h ;
a return
l i n e
b e t W e e n a
l a s t s u i t e
of
the
one or m o r e s u i t e s
i n s e r i e s
and
t h e d o m e s t i c h o t W a t e r r e t u r n r i s e r ,
a
b l e e d v a l v e a l o n g
t h e r e t u r n
l i n e
betWeen t h e
l a s t s u i t e
and
t h e d o m e s t i c
h o t W a t e r
r e t u r n r i s e r f o r m a i n t a i n i n g
a
m i n i m u m
c o n t i n u a l
How
of
o t
Water
i n
t h e
domestic
h o t W a t e r
s u p p l y
m a i n f o r s u b s t a n t i a l l y i m m e d i a t e l y
s e r v i c i n g t h e d o m e s t i c ? x t u r e s W i t h d o m e s t i c h o t
W a t e r
upon d e m a n d ; a n d
one o r more
hot
Water p r e s s u r e reducing
valves
betWe e n
t h e d o m e s t i c
h o t
W a t e r
s u p p l y
main and t h e d o m e s t i c
use
?xtures
of each of the one
or mo r e s u i t e s
of each
?oor t
Which
t h e h y d r o s t a t i c
p r e s s u r e
i n t h e h o t
W a t e r
s u p p l y main i s above
a
h o t W a t e r p r e s s u r e t h r e s h o l d .
2 .
The
s y s t e m o f c l a i m
1
Wherein
t h e h o t
W a t e r
p r e s s u r e
threshold i s
a t
a domestic use ?xture p r e s s u r e .
3 . T h e system of
c l a i m 1
Wherein
a t l e a s t some
of
t h e
s u i t e s a r e p r o v i d e d W i t h f a n - c o i l s h a v i n g a c h i l l e d W a t e r
c i r c u i t
and a h e a t e d
W a t e r
c i r c u i t ,
f u r t h e r
c o m p r i s i n g :
a
c h i l l e d
Water
r i s e r
f o r s u p p l y i n g
c h i l l e d
Water
t o
t h e
f a n - c o i l c h i l l e d W a t e r c i r c u i t ;
a c h i l l e d Water r e t u r n f o r r e c e i v i n g c h i l l e d Water
from
t h e
f a n - c o i l c h i l l e d
W a t e r c i r c u i t ;
a h e a t e d
W a t e r r i s e r
f o r s u p p l y i ng h e a t e d
W a t e r
a t
hydro
s t a t i c
p r e s s u r e
t o
t h e
f a n - c o i l h e a t e d W a t e r c i r c u i t ; and
a
h e a t e d
Water r e t u r n f o r r e c e i v i n g
h e a t e d
Water
from
t h e
f a n - c o i l
h e a t e d
W a t e r c i r c u i t .
4 . The s y s t e m o f
c l a i m
3
W h e r e i n
t h e
h e a t e d W a t e r r i s e r i s
t h e
d o m e s t i c
h o t
W a t e r r i s e r ; and
t h e
heated
W
