Diverting Valves User Guide
8
User Guide Viega Diverting Valves 1 of 8 UG-HC 561147 1219 Diverting Valves (EN) This document is subject to updates. For the most current Viega technical literature please visit www.viega.us. Viega products are designed to be installed by licensed and trained plumbing, mechanical, and electrical professionals who are familiar with Viega products and their installation. Installation by non- professionals may void Viega LLC’s warranty. Operations Diverting Valves have one entry port and two exit ports. Depending upon the position of the valve stem, flow is diverted from one exit port to the other. Installation The Diverting Valve is provided with a pre-installed temperature High Limit Kit. This kit is installed into the 3-way valve to allow a maximum supply water temperature to be set. This kit must be unscrewed when purging the system and should then be set according to the instructions below. 1 Remove (A) gray plastic cap from (B) valve body. (This cap can be used to adjust the water temperature manually.) 2 Loosen (A) hex lock nut from the (B) valve body with brass key tool. 3 Use opposite side of (A) brass key tool and turn inner adjustment screw (slotted) clockwise until valve spring resistance is felt. To lower water temperature turn key clockwise; turn counterclockwise to raise it. 4 Turn adjustment screw further clockwise until desired supply water temperature is obtained and count quarter turns for reference. This has to be done carefully and slowly because each quarter turn of the adjustment screw will result in approximately 15°F temperature reduction. Wait until desired water temperature stays consistent. 5 Tighten (A) hex lock nut with wrench. Do not over tighten. To secure high limit adjustment: hold slotted adjustment screw with brass key while tightening nut. A 5 A B 1 A B 2 A 3 4 This calibration must be done with the boiler at its highest temperature, the circulator running and all zones open.
Transcript of Diverting Valves User Guide
User Guide
Viega Diverting Valves
1 of 8UG-HC 561147 1219 Diverting Valves (EN)
This document is subject to updates. For the most current Viega technical literature please visit www.viega.us.
Viega products are designed to be installed by licensed and trained plumbing, mechanical, and electrical
professionals who are familiar with Viega products and their installation. Installation by non-professionals may void Viega LLC’s warranty.
OperationsDiverting Valves have one entry port and two exit ports. Depending upon the position of the valve stem, flow is diverted from one exit port to the other.
InstallationThe Diverting Valve is provided with a pre-installed temperature High Limit Kit. This kit is installed into the 3-way valve to allow a maximum supply water temperature to be set. This kit must be unscrewed when purging the system and should then be set according to the instructions below.1 Remove (A) gray plastic cap from (B) valve
body. (This cap can be used to adjust the water temperature manually.)
2 Loosen (A) hex lock nut from the (B) valve body with brass key tool.
3 Use opposite side of (A) brass key tool and turn inner adjustment screw (slotted) clockwise until valve spring resistance is felt. To lower water temperature turn key clockwise; turn counterclockwise to raise it.
4 Turn adjustment screw further clockwise until desired supply water temperature is obtained and count quarter turns for reference. This has to be done carefully and slowly because each quarter turn of the adjustment screw will result in approximately 15°F temperature reduction. Wait until desired water temperature stays consistent.
5 Tighten (A) hex lock nut with wrench. Do not over tighten. To secure high limit adjustment: hold slotted adjustment screw with brass key while tightening nut.
A
5
A
B
1
AB
2
A3 4
This calibration must be done with the boiler at its highest temperature, the circulator running and all zones open.
2 of 8
Viega Diverting Valves User Guide
UG-HC 561147 1219 Diverting Valves (EN)
Pip
ing
Sch
emat
ic o
f Bas
ic H
eatin
g C
ontr
ol w
ith M
ixin
g S
tatio
n an
d 3
Man
ifold
s in
Par
alle
l
Pip
ing
■
This
dra
win
g sh
ows
syst
em p
ipin
g co
ncep
t onl
y. In
stal
ler
is re
spon
sibl
e fo
r al
l equ
ipm
ent a
nd d
etai
ling
requ
ired
by lo
cal c
odes
.
■ S
ize
head
er p
ipin
g fo
r m
axim
um fl
ow
velo
city
of 2
ft./
sec.
■
All
othe
r pi
ping
sho
uld
be s
ized
for
a m
axim
um fl
ow v
eloc
ity o
f 4 ft
./se
c.
■ In
stal
l a m
inim
um o
f 12
diam
eter
s of
str
aigh
t pip
e up
stre
am o
f all
circ
ulat
ors
and
chec
k va
lves
.
■ In
stal
l iso
latin
g fla
nges
or
isol
atin
g va
lves
on
all c
ircul
ator
s.
■ In
stal
l pur
ging
val
ve(s
) on
all c
ircui
ts.
■
All
clos
ely
spac
ed te
es s
hall
be
with
in 4
pip
e di
amet
er c
ente
r-to
-ce
nter
spa
cing
.
■In
stal
l min
imum
of 6
pip
e di
amet
ers
of s
traig
ht p
ipe
upst
ream
and
do
wns
tream
of a
ll cl
osel
y sp
aced
tees
.
■ D
iffer
entia
l pre
ssur
e by
pass
val
ve
prev
ents
flow
noi
se u
nder
par
tial
load
con
ditio
ns (s
ome
zone
val
ves
clos
ed).
■
Set
diff
eren
tial p
ress
ure
bypa
ss
valv
e to
del
ta P
of d
istr
ibut
ion
syst
em w
ith a
ll zo
nes
open
+ 1
psi
■
Not
all
com
pone
nts
may
be
requ
ired
depe
ndin
g on
con
trol
str
ateg
y (i.
e.
cons
tant
circ
ulat
ion)
.
Zone
C
ontr
ol
Prim
ary
Loop
P
ump
(P1)
Out
door
S
enso
r (S
2)
Indo
or
Sen
sor
(S3)
Vie
ga
Bas
ic
1 S
tage
T-
STA
T
3 of 8
Viega Diverting Valves User Guide
UG-HC 561147 1219 Diverting Valves (EN)
Wir
ing
■
This
dra
win
g sh
ows
syst
em w
iring
con
cept
on
ly. I
nsta
ller
is re
spon
sibl
e fo
r al
l equ
ipm
ent
and
deta
iling
requ
ired
by lo
cal c
odes
.
■A
ll w
iring
sha
ll be
in c
onfo
rman
ce w
ith th
e la
test
edi
tion
of th
e N
atio
nal E
lect
rical
Cod
e.
■M
axim
um c
urre
nt ra
ting
of B
asic
and
A
dvan
ce H
eatin
g C
ontr
ol R
elay
is 1
0 A
mps
, B
asic
and
Adv
ance
Sno
w M
eltin
g C
ontr
ol.
Rel
ay is
5 A
mps
, Max
imum
cur
rent
ratin
g of
Zo
ne C
ontr
ol R
elay
s is
5 A
mps
, if c
ircul
ator
dr
aw e
xcee
ds th
is u
se p
ilot r
elay
with
120
VA
C c
oil o
pera
ted
by V
iega
Con
trol
.
■C
onsu
lt w
ith c
ontr
ol /
boi
ler
man
ufac
ture
r fo
r lim
itatio
ns a
nd in
stal
latio
n in
stru
ctio
ns.
■
Do
not r
un th
e w
ires
para
llel t
o te
leph
one
or p
ower
cab
les.
If th
e se
nsor
wire
s ar
e lo
cate
d in
an
area
with
str
ong
sour
ce o
f el
ectr
omag
netic
inte
rfer
ence
(EM
I), s
hiel
ded
cabl
e or
twis
ted
pair
shou
ld b
e us
ed o
r th
e w
ires
can
be r
un in
a g
roun
ded
met
al
cond
uit.
If us
ing
shie
lded
cab
le, t
he s
hiel
d w
ire s
houl
d be
con
nect
ed to
the
Com
or
Com
S
en te
rmin
al o
n th
e co
ntro
l and
not
to e
arth
gr
ound
. Use
18
AW
G c
oppe
r w
iring
for
all
sens
or w
iring
. Sen
sors
sho
uld
be lo
cate
d 12
� do
wn
stre
am o
f mix
ing
poin
t.
■D
HW
prio
rity
rela
y m
ust b
e ra
ted
to h
andl
e fu
ll am
pera
ge lo
ad o
f zon
e ci
rcul
ator
rela
y ce
nter
.
■O
ther
con
figur
atio
ns a
re p
ossi
ble,
but
all
spac
e he
atin
g zo
ne c
ircul
ator
s m
ust t
urn
off
whe
n D
HW
mod
e is
on
or h
eat s
ourc
e ne
eds
to b
e si
zed
for
mul
tiple
load
s.
Wir
ing
Sch
emat
ic o
f Bas
ic H
eatin
g C
ontr
ol w
ith M
ixin
g S
tatio
n an
d 3
Man
ifold
s in
Par
alle
l
120
V A
C
Pow
er S
uppl
y
Pow
erB
oile
r
Boi
ler
Opn
Mix
Com
Out
Indr
Cls
Pow
ered
Out
put
S3
(Opt
iona
l)
No
Pow
er
GREEN
BROWN
WHITE
Bas
ic H
eatin
g C
ont
rol
Sys
P
mp
4 of 8
Viega Diverting Valves User Guide
UG-HC 561147 1219 Diverting Valves (EN)
Pip
ing
Sch
emat
ic o
f B
asic
Hea
ting
Con
trol
with
Mix
ing
Sta
tion,
3 M
anifo
lds
in P
aral
lel,
an
d H
igh
Tem
p w
ith P
ower
head
s an
d B
oile
r R
elay
5 of 8
Viega Diverting Valves User Guide
UG-HC 561147 1219 Diverting Valves (EN)
Pip
ing
■
This
dra
win
g sh
ows
syst
em p
ipin
g co
ncep
t onl
y. In
stal
ler
is re
spon
sibl
e fo
r al
l equ
ipm
ent a
nd d
etai
ling
requ
ired
by
loca
l cod
es.
■
Siz
e he
ader
pip
ing
for
max
imum
flow
vel
ocity
of 2
ft./
sec.
■
All
othe
r pi
ping
sho
uld
be s
ized
for
a m
axim
um fl
ow
velo
city
of 4
ft./
sec.
■
Inst
all a
min
imum
of 1
2 di
amet
ers
of s
trai
ght p
ipe
upst
ream
of
all
circ
ulat
ors
and
chec
k va
lves
.
■In
stal
l iso
latin
g fla
nges
or
isol
atin
g va
lves
on
all c
ircul
ator
s.
■In
stal
l pur
ging
val
ve(s
) on
all c
ircui
ts.
■
All
clos
ely
spac
ed te
es s
hall
be w
ithin
4 p
ipe
diam
eter
ce
nter
-to-
cent
er s
paci
ng.
■
Inst
all m
inim
um o
f 6 p
ipe
diam
eter
s of
str
aigh
t pip
e up
stre
am a
nd d
owns
trea
m o
f all
clos
ely
spac
ed te
es.
■
Diff
eren
tial p
ress
ure
bypa
ss v
alve
pre
vent
s flo
w n
oise
un
der
part
ial l
oad
cond
ition
s (s
ome
zone
val
ves
clos
ed).
■
Set
diff
eren
tial p
ress
ure
bypa
ss v
alve
to d
elta
P o
f di
strib
utio
n sy
stem
with
all
zone
s op
en +
1 p
si
■N
ot a
ll co
mpo
nent
s m
ay b
e re
quire
d de
pend
ing
on c
ontr
ol
stra
tegy
(i.e
. con
stan
t circ
ulat
ion)
.
Leg
end
: Mix
ing
Sta
tion
Mix
ing
Sta
tion
Spr
ing
chec
k
Circ
ulat
or
Dra
w O
ff (P
urge
Val
ve)
Mak
e-up
Wat
er
Pre
ssur
e D
iffer
entia
l Byp
ass
Valv
e
Stai
nles
s M
anifo
ld w
ith F
low
Gau
ges
Bas
eboa
rd Z
one(
s)
Dia
phra
gm-T
ype
Exp
ansi
on T
ank
Zone
Val
ve
6 of 8
Viega Diverting Valves User Guide
UG-HC 561147 1219 Diverting Valves (EN)
Wir
ing
■
This
dra
win
g sh
ows
syst
em w
iring
con
cept
on
ly. I
nsta
ller
is re
spon
sibl
e fo
r al
l equ
ipm
ent
and
deta
iling
requ
ired
by lo
cal c
odes
.
■A
ll w
iring
sha
ll be
in c
onfo
rman
ce w
ith th
e la
test
edi
tion
of th
e N
atio
nal E
lect
rical
Cod
e.
■M
axim
um c
urre
nt ra
ting
of B
asic
and
A
dvan
ce H
eatin
g C
ontr
ol R
elay
is 1
0 A
mps
, B
asic
and
Adv
ance
Sno
w M
eltin
g C
ontr
ol.
Rel
ay is
5 A
mps
, Max
imum
cur
rent
ratin
g of
Zo
ne C
ontr
ol R
elay
s is
5 A
mps
, if c
ircul
ator
dr
aw e
xcee
ds th
is u
se p
ilot r
elay
with
120
VA
C c
oil o
pera
ted
by V
iega
Con
trol
.
■C
onsu
lt w
ith c
ontr
ol /
boi
ler
man
ufac
ture
r fo
r lim
itatio
ns a
nd in
stal
latio
n in
stru
ctio
ns.
■
Do
not r
un th
e w
ires
para
llel t
o te
leph
one
or p
ower
cab
les.
If th
e se
nsor
wire
s ar
e lo
cate
d in
an
area
with
str
ong
sour
ce o
f el
ectr
omag
netic
inte
rfer
ence
(EM
I), s
hiel
ded
cabl
e or
twis
ted
pair
shou
ld b
e us
ed o
r th
e w
ires
can
be r
un in
a g
roun
ded
met
al
cond
uit.
If us
ing
shie
lded
cab
le, t
he s
hiel
d w
ire s
houl
d be
con
nect
ed to
the
Com
or
Com
S
en te
rmin
al o
n th
e co
ntro
l and
not
to e
arth
gr
ound
. Use
18
AW
G c
oppe
r w
iring
for
all
sens
or w
iring
. Sen
sors
sho
uld
be lo
cate
d 12
� do
wn
stre
am o
f mix
ing
poin
t.
■D
HW
prio
rity
rela
y m
ust b
e ra
ted
to h
andl
e fu
ll am
pera
ge lo
ad o
f zon
e ci
rcul
ator
rela
y ce
nter
.
■O
ther
con
figur
atio
ns a
re p
ossi
ble,
but
all
spac
e he
atin
g zo
ne c
ircul
ator
s m
ust t
urn
off
whe
n D
HW
mod
e is
on
or h
eat s
ourc
e ne
eds
to b
e si
zed
for
mul
tiple
load
s.
Wir
ing
Sch
emat
ic o
f Bas
ic H
eatin
g C
ontr
ol w
ith M
ixin
g S
tatio
n, 3
Man
ifold
s in
Par
alle
l,
and
Hig
h Te
mp
with
Pow
erhe
ads
and
Boi
ler
Rel
ay
Lege
nd: B
asic
Hea
ting
Con
trol
Sen
sors
P2
= M
ixed
Tem
pera
ture
Circ
ulat
or
Low
Vol
tage
S1
= M
ix S
enso
r
Line
Vol
tage
S2
= O
utsi
de S
enso
r
P1
= P
rimar
y Lo
op C
ircul
ator
S3
= In
side
Sen
sor
7 of 8
Viega Diverting Valves User Guide
UG-HC 561147 1219 Diverting Valves (EN)
Pip
ing
Sch
emat
ic o
f Bas
ic S
now
Mel
t C
ontr
ol w
ith N
on-E
lect
ric C
ontr
ol
Pip
ing
■
This
dra
win
g sh
ows
syst
em p
ipin
g co
ncep
t onl
y. In
stal
ler
is re
spon
sibl
e fo
r al
l equ
ipm
ent a
nd d
etai
ling
requ
ired
by lo
cal c
odes
.
■ S
ize
head
er p
ipin
g fo
r m
axim
um fl
ow
velo
city
of 2
ft./
sec.
■
All
othe
r pi
ping
sho
uld
be s
ized
for
a m
axim
um fl
ow v
eloc
ity o
f 4 ft
./se
c.
■ In
stal
l a m
inim
um o
f 12
diam
eter
s of
str
aigh
t pip
e up
stre
am o
f all
circ
ulat
ors
and
chec
k va
lves
.
■ In
stal
l iso
latin
g fla
nges
or
isol
atin
g va
lves
on
all c
ircul
ator
s.
■ In
stal
l pur
ging
val
ve(s
) on
all c
ircui
ts.
■
All
clos
ely
spac
ed te
es s
hall
be
with
in 4
pip
e di
amet
er c
ente
r-to
-ce
nter
spa
cing
.
■In
stal
l min
imum
of 6
pip
e di
amet
ers
of s
traig
ht p
ipe
upst
ream
and
do
wns
tream
of a
ll cl
osel
y sp
aced
tees
.
■ D
iffer
entia
l pre
ssur
e by
pass
val
ve
prev
ents
flow
noi
se u
nder
par
tial
load
con
ditio
ns (s
ome
zone
val
ves
clos
ed).
■
Set
diff
eren
tial p
ress
ure
bypa
ss
valv
e to
del
ta P
of d
istr
ibut
ion
syst
em w
ith a
ll zo
nes
open
+ 1
psi
■
Not
all
com
pone
nts
may
be
requ
ired
depe
ndin
g on
con
trol
str
ateg
y (i.
e.
cons
tant
circ
ulat
ion)
.
Lege
nd
Div
ertin
g Va
lve
with
3-
Posi
tion
Act
uato
rB
ack
Flow
Pre
vent
erS
tain
less
Man
ifold
with
Fl
ow G
auge
s
3-W
ay M
ixin
g Va
lve
and
Mot
orP
ress
er R
educ
ing
Valv
eB
aseb
oard
Zon
e(s)
4-W
ay M
ixin
g Va
lve
and
Mot
orFl
ow C
heck
Val
veD
iaph
ragm
-Typ
e E
xpan
sion
Tan
k
Circ
ulat
orS
win
g C
heck
Val
veZo
ne V
alve
Dra
w O
ff (P
urge
Val
ve)
Pre
ssur
e D
iffer
entia
l B
ypas
s Va
lve
Met
ered
Bal
anci
ng
Valv
e
Viega LLC585 Interlocken Blvd.Broomfield, CO 80021
Phone (800) 976-9819www.viega.us
Viega Diverting Valves User Guide
UG-HC 561147 1219 Diverting Valves (EN)
Wir
ing
■
This
dra
win
g sh
ows
syst
em w
iring
con
cept
on
ly. I
nsta
ller
is re
spon
sibl
e fo
r al
l equ
ipm
ent
and
deta
iling
requ
ired
by lo
cal c
odes
.
■A
ll w
iring
sha
ll be
in c
onfo
rman
ce w
ith th
e la
test
edi
tion
of th
e N
atio
nal E
lect
rical
Cod
e.
■M
axim
um c
urre
nt ra
ting
of B
asic
and
A
dvan
ce H
eatin
g C
ontr
ol R
elay
is 1
0 A
mps
, B
asic
and
Adv
ance
Sno
w M
eltin
g C
ontr
ol.
Rel
ay is
5 A
mps
, Max
imum
cur
rent
ratin
g of
Zo
ne C
ontr
ol R
elay
s is
5 A
mps
, if c
ircul
ator
dr
aw e
xcee
ds th
is u
se p
ilot r
elay
with
120
VA
C c
oil o
pera
ted
by V
iega
Con
trol
.
■C
onsu
lt w
ith c
ontr
ol /
boi
ler
man
ufac
ture
r fo
r lim
itatio
ns a
nd in
stal
latio
n in
stru
ctio
ns.
■
Do
not r
un th
e w
ires
para
llel t
o te
leph
one
or p
ower
cab
les.
If th
e se
nsor
wire
s ar
e lo
cate
d in
an
area
with
str
ong
sour
ce o
f el
ectr
omag
netic
inte
rfer
ence
(EM
I), s
hiel
ded
cabl
e or
twis
ted
pair
shou
ld b
e us
ed o
r th
e w
ires
can
be r
un in
a g
roun
ded
met
al
cond
uit.
If us
ing
shie
lded
cab
le, t
he s
hiel
d w
ire s
houl
d be
con
nect
ed to
the
Com
or
Com
S
en te
rmin
al o
n th
e co
ntro
l and
not
to e
arth
gr
ound
. Use
18
AW
G c
oppe
r w
iring
for
all
sens
or w
iring
. Sen
sors
sho
uld
be lo
cate
d 12
� do
wn
stre
am o
f mix
ing
poin
t.
■D
HW
prio
rity
rela
y m
ust b
e ra
ted
to h
andl
e fu
ll am
pera
ge lo
ad o
f zon
e ci
rcul
ator
rela
y ce
nter
.
■O
ther
con
figur
atio
ns a
re p
ossi
ble,
but
all
spac
e he
atin
g zo
ne c
ircul
ator
s m
ust t
urn
off
whe
n D
HW
mod
e is
on
or h
eat s
ourc
e ne
eds
to b
e si
zed
for
mul
tiple
load
s.
Wir
ing
Sch
emat
ic o
f Bas
ic S
now
Mel
t C
ontr
ol w
ith N
on-E
lect
ric
Con
trol
Lege
nd: B
asic
Sno
w M
elt C
ontr
ol
Sen
sors
S1
= B
oile
r S
enso
r
Low
Vol
tage
S2
= M
ixed
Sup
ply
Line
Vol
tage
P1
= P
rimar
y Lo
op C
ircul
ator
S3
= O
utdo
or S
enso
r
P2
= S
yste
m C
ircul
ator
S4
= S
now
Det
ecto
r
P3
= Va
riabl
e S
peed
Circ
ulat
orS
5 =
Sla
b S
enso
r
