- application brochure a 374e - radiant control
TRANSCRIPT
- Application BrochureUniversal Reset Control 374e
A 374e12/07
1 of 12 © 2007 A 374e - 12/07
Features of the Universal Reset Control 374e
ApplicationThe kanmor Universal Reset Control 374e is designed to maximize the comfort and efficiency provided by a hydronic heating system. The control automatically adjusts the boiler and mix water temperatures that are delivered to the heating system by using outdoor reset. The 374e control can control two separate on / off stages (or one low / high fire) to provide outdoor reset while providing equal run time rotation of the boilers. The 374e can operate two mixing devices, which can be either two variable speed injection pumps or two floating action valves. The mixing devices can be used to supply two different reset water temperatures or one reset and one setpoint water temperature to a space heating system. The 374e is capable of controlling an indirect Domestic Hot Water (DHW) storage tank and setpoint load. The control has an internal timer, which can have 2 events per day on a 24 hour, 5-1-1 day or 7 day schedule.
Outdoor ResetCharacterized Heating CurveWarm Weather Shut DownBoiler Outdoor ResetBoiler Differential (Automatic)Boiler Minimum SupplyBoiler Post PurgeFire DelayBoiler MassBoiler EnableDHW Boiler Reset OverrideDHW PriorityDHW Priority Override
•••••••••••••
DHW Post PurgeDHW Mixing PurgeSetpoint Boiler Reset OverrideSetpoint EnableSetpoint PriorityMixing Outdoor ResetFloating Action OutputVariable Speed OutputBoiler ProtectionSystem ProtectionBoiler Load ResetPump / Integrated ExercisingInternal Setback Timer
•••••••••••••
230 V (ac)
24 V (ac)
Universal Reset Control 374Two Mixing, Two Stage Boiler, DHW & Setpoint
Menu Item
Boiler Demand
Mix 1 Demand
Mix 2 Demand
DHW Demand
Setpoint Demand
- App
licat
ion
Mec
hani
cal
Con
cept
Dra
win
gT
his
is o
nly
a c
oncept
dra
win
g,
not
an e
ngin
eere
d d
raw
ing.
It is n
ot
inte
nded t
o d
escribe
a c
om
ple
te s
yste
m, nor
any p
art
icula
r sys
tem
. It is
up to the s
yste
m d
esig
ner
to d
ete
rmin
e
the n
ecessary
com
ponents
for
and c
onfigura
tion o
f th
e p
art
icula
r sys
tem
bein
g d
esig
ned,
inclu
din
g additio
nal
equip
ment, is
ola
tion re
lays
(f
or
loads gre
ate
r th
an th
e contr
ol’s
specifie
d o
utp
ut
ratings),
and a
ny s
afe
ty d
evic
es w
hic
h in t
he judgem
ent
of
the d
esig
ner
are
appro
priate
, in
ord
er
to p
roperly s
ize, configure
and d
esig
n that sys
tem
and to e
nsure
com
plia
nce w
ith b
uild
ing a
nd s
afe
ty c
ode r
equirem
ents
.kanm
or
Contr
ol S
yste
ms L
td.,
ww
w.k
anm
or.c
om51
00 S
ilver
Sta
r R
oad,
Ver
non,
B.C
. Can
ada,
V1B
3K
4; (2
50) 5
45-2
693
Fax
(250
) 549
-434
9
© 2007 A 374e - 12/07 2 of 12
Sys
tem
Ope
ratio
nT
he U
niv
ers
al
Reset
Contr
ol
374
e p
rovid
es f
ull
outd
oor
reset
to t
wo d
iffe
rent
mix
tem
pera
ture
sys
tem
s,
each w
ith t
wo (
or
more
) zo
nes.
The o
utp
ut
of
both
variable
speed inje
ction p
um
ps a
re m
odula
ted t
o p
rovid
e m
ixed s
upply
wate
r te
mpera
ture
s
to e
ach s
yste
m,
and to p
rote
ct
the b
oile
r fr
om
flu
e g
as c
ondensation.
The 3
74e a
lso c
ontr
ols
the s
upply
of
heat
to a
n indirect
Dom
estic H
ot W
ate
r (D
HW
) ta
nk. T
he 3
74e s
tages a
nd r
ota
tes the b
oile
rs in o
rder
to s
atisfy
all
loads.
A1 =
DH
W A
qu
asta
tP
1 =
Pri
ma
ry P
um
pP
2 =
Mix
1 S
yste
m P
um
pP
3 =
Mix
2 S
yste
m P
um
pP
4 =
Mix
1 V
ari
ab
le S
pe
ed I
nje
ctio
n P
um
pP
5 =
Mix
2 V
ari
ab
le S
pe
ed
In
jectio
n P
um
pP
6 =
DH
W P
um
pS
1 =
Mix
1 S
en
so
r 071e
S2 =
Mix
2 S
en
so
r 071e
S3 =
Ou
tdo
or
Se
nso
r 070
eS
4 =
Bo
iler
Su
pp
ly S
en
so
r 071e
V1...V
4 =
Glo
be o
r B
ala
ncin
g V
alv
eZ
1, Z
2 =
Mix
1 Z
on
e V
alv
eZ
3,
Z4
= M
ix 2
Zo
ne V
alv
e
A 3
74e-
112
/07
Outd
oor
Sensor
(S3)
070e
230 V
(ac)
24 V
(ac)
Cla
ss II
Tra
nsfo
rmer
kanm
or
500 s
eries therm
osta
ts
P1
Z1
V2
Z2
Z3
Z4
A1
P6
DH
WTank
MM
MM
P4
P2
P5
P3
V3
V4
V1
see E
ssay
E 0
21
see E
ssay
E 0
21
Boile
r S
upply
Sensor
(S4)
071e
Mix
2S
upply
Sensor
(S2)
071e
Mix
1 S
upply
Sensor
(S1)
071e
374e
- App
licat
ion
Ele
ctri
cal
Con
cept
Dra
win
gT
his
is o
nly
a c
oncept
dra
win
g,
not
an e
ngin
eere
d d
raw
ing.
It is n
ot
inte
nded t
o d
escribe
a c
om
ple
te s
yste
m, nor
any p
art
icula
r sys
tem
. It is
up to the s
yste
m d
esig
ner
to d
ete
rmin
e
the n
ecessary
com
ponents
for
and c
onfigura
tion o
f th
e p
art
icula
r sys
tem
bein
g d
esig
ned,
inclu
din
g additio
nal
equip
ment, is
ola
tion re
lays
(f
or
loads gre
ate
r th
an th
e contr
ol’s
specifie
d o
utp
ut
ratings),
and a
ny s
afe
ty d
evic
es w
hic
h in t
he judgem
ent
of
the d
esig
ner
are
appro
priate
, in
ord
er
to p
roperly s
ize, configure
and d
esig
n that sys
tem
and to e
nsure
com
plia
nce w
ith b
uild
ing a
nd s
afe
ty c
ode r
equirem
ents
.kanm
or
Contr
ol S
yste
ms L
td.,
ww
w.k
anm
or.c
om51
00 S
ilver
Sta
r R
oad,
Ver
non,
B.C
. Can
ada,
V1B
3K
4; (2
50) 5
45-2
693
Fax
(250
) 549
-434
9
3 of 12 © 2007 A 374e - 12/07
Ess
entia
l Con
trol
Set
tings
DH
W M
OD
E =
1 (
no
prio
rity
)
2 (
with
prio
rity
)M
IX 1
MO
DE
= 1
MIX
2 M
OD
E =
1
A 3
74e-
112
/07
A1 =
DH
W A
qu
asta
tP
1 =
Pri
ma
ry P
um
pP
2 =
Mix
1 S
yste
m P
um
pP
3 =
Mix
2 S
yste
m P
um
pP
4 =
Mix
1 V
ari
ab
le S
pe
ed I
nje
ctio
n P
um
pP
5 =
Mix
2 V
ari
ab
le S
pe
ed
In
jectio
n P
um
pP
6 =
DH
W P
um
pS
1 =
Mix
1 S
en
so
r 071e
S2 =
Mix
2 S
en
so
r 071e
S3 =
Ou
tdo
or
Se
nso
r 070
eS
4 =
Bo
iler
Su
pp
ly S
en
so
r 071e
Z1, Z
2 =
Mix
1 Z
on
e V
alv
eZ
3,
Z4
= M
ix 2
Zo
ne V
alv
e
required
optio
nal
C24 V
(ac)
R
N230 V
(ac)
Cla
ss II
Tra
nsfo
rmer
L
Boile
r#1
Boile
r#2
S1 S2
P4
P5
A1
P2
P6
P1
P3
S4
S3
Z4
MZ
3
M
Z2
MZ
1
M
R
kanm
or 5
00e
Serie
s Th
erm
osta
ts
CRe
lay
1R
kanm
or 5
00e
Serie
s Th
erm
osta
ts
CRe
lay
1R
kanm
or 5
00e
Serie
s Th
erm
osta
ts
CRe
lay
1R
kanm
or 5
00e
Serie
s Th
erm
osta
ts
CRe
lay
1
Do
not a
pply
pow
er
1314
1617
Opn 15A
5A
5A
5A
5A
5A
5A
5A
2.5
A2.5
A
Cls1
Var1
Pwr
Mix
Opn 2
Cls2
Var2
UnO
SwCo
mBo
ilO
utCo
mM
ix1M
ix2M
ix1 P2L
NN
Prim P1
Mix2 P3
Mix1
Dem
Com
Dem
Mix2
Dem
Setp
Dem
DHW
Dem
Boil
Dem
Com
Dem
12
34
56
78
910
1112
1518
1920
2122
2324
2526
2728
2930
31
374
e
Powe
rDH
WPm
p/Vl
vSt
age
1 /
Boil E
nbl.
Stag
e 2
/Se
tp E
nbl.
Boile
r Sen
sor
Varia
ble
Off
Supp
lyIn
stal
ler
Adva
nced
Setb
ack
30%
Ena
ble
10%
Ena
ble
Retu
rn
Floa
ting
Rota
te
- App
licat
ion
Mec
hani
cal
Con
cept
Dra
win
gT
his
is o
nly
a c
oncept
dra
win
g,
not
an e
ngin
eere
d d
raw
ing.
It is n
ot
inte
nded t
o d
escribe
a c
om
ple
te s
yste
m, nor
any p
art
icula
r sys
tem
. It is
up to the s
yste
m d
esig
ner
to d
ete
rmin
e
the n
ecessary
com
ponents
for
and c
onfigura
tion o
f th
e p
art
icula
r sys
tem
bein
g d
esig
ned,
inclu
din
g additio
nal
equip
ment, is
ola
tion re
lays
(f
or
loads gre
ate
r th
an th
e contr
ol’s
specifie
d o
utp
ut
ratings),
and a
ny s
afe
ty d
evic
es w
hic
h in t
he judgem
ent
of
the d
esig
ner
are
appro
priate
, in
ord
er
to p
roperly s
ize, configure
and d
esig
n that sys
tem
and to e
nsure
com
plia
nce w
ith b
uild
ing a
nd s
afe
ty c
ode r
equirem
ents
.kanm
or
Contr
ol S
yste
ms L
td.,
ww
w.k
anm
or.c
om51
00 S
ilver
Sta
r R
oad,
Ver
non,
B.C
. Can
ada,
V1B
3K
4; (2
50) 5
45-2
693
Fax
(250
) 549
-434
9
© 2007 A 374e - 12/07 4 of 12
A 3
74e-
212
/07
A1 =
DH
W A
qu
asta
tC
1, C
2 =
Actu
atin
g M
oto
r P
1 =
Pri
ma
ry P
um
pP
2 =
Mix
1 S
yste
m P
um
pP
3 =
Mix
2 S
yste
m P
um
pP
4 =
DH
W P
um
pP
5 =
Bo
iler
Zo
ne P
um
pS
1 =
Mix
1 S
up
ply
Se
nso
r 071e
S2 =
Mix
2 S
up
ply
Se
nso
r 071e
S3 =
Ou
tdo
or
Se
nso
r 070
eS
4 =
Bo
iler
Su
pp
ly S
en
so
r 071e
R1 =
Re
lay
V1, V
2 =
4
-Way M
ixin
g V
alv
eV
3,
V4 =
G
lob
e V
alv
e
or
Ba
lan
cin
g V
alv
eV
5, V
6 =
P
ressu
re D
iffe
ren
tia
l
Byp
ass V
alv
eZ
1... Z
4 =
Th
erm
osta
tic V
alv
e
Sys
tem
Ope
ratio
nT
he U
niv
ers
al R
eset C
ontr
ol 3
74e p
rovid
es fu
ll outd
oor re
set t
o tw
o s
epara
te m
ix te
mpera
ture
sys
tem
s, e
ach h
avin
g th
erm
osta
tic
valv
es.
Tw
o f
loatin
g a
ctio
n 4
-way v
alv
es a
re m
odula
ted t
o p
rovid
e m
ixed s
upply
wate
r te
mpera
ture
s t
o e
ach s
yste
m,
and t
o
pro
tect th
e b
oile
r fr
om
flu
e g
as c
ondensatio
n. T
he 3
74e p
rovid
es p
art
ial o
utd
oor re
set to
one (or m
ore
) boile
r te
mpera
ture
zone.
The 3
74e a
lso c
ontr
ols
the s
upply
of
heat
to a
n indirect
Dom
estic
Hot
Wate
r (D
HW
) ta
nk a
nd p
rovid
es D
HW
priority
ove
r m
ix
zones. T
he 3
74e s
tages a
nd r
ota
tes the b
oile
rs in
ord
er
to s
atis
fy a
ll lo
ads.
Outd
oor
Sensor
(S3)
070e
230 V
(ac)
24 V
(ac)
Cla
ss II
Tra
nsfo
rmer
kanm
or
500e
series therm
osta
t
P1
P5
R1
V4
V2
V5
C2
C1
V6
Z1
A1
P4
DH
WTank
T
Z2
T
Z3
T
Z4
T
P3
S2
V1
P2
V3
DP
ΔP
M
M
Mix
1S
upply
Sensor
(S1)
071e
Mix
2S
upply
Sensor
(S2)
071e
Boile
r S
upply
Sensor
(S4)
071e
374e
- App
licat
ion
Ele
ctri
cal
Con
cept
Dra
win
gT
his
is o
nly
a c
oncept
dra
win
g,
not
an e
ngin
eere
d d
raw
ing.
It is n
ot
inte
nded t
o d
escribe
a c
om
ple
te s
yste
m, nor
any p
art
icula
r sys
tem
. It is
up to the s
yste
m d
esig
ner
to d
ete
rmin
e
the n
ecessary
com
ponents
for
and c
onfigura
tion o
f th
e p
art
icula
r sys
tem
bein
g d
esig
ned,
inclu
din
g additio
nal
equip
ment, is
ola
tion re
lays
(f
or
loads gre
ate
r th
an th
e contr
ol’s
specifie
d o
utp
ut
ratings),
and a
ny s
afe
ty d
evic
es w
hic
h in t
he judgem
ent
of
the d
esig
ner
are
appro
priate
, in
ord
er
to p
roperly s
ize, configure
and d
esig
n that sys
tem
and to e
nsure
com
plia
nce w
ith b
uild
ing a
nd s
afe
ty c
ode r
equirem
ents
.kanm
or
Contr
ol S
yste
ms L
td.,
ww
w.k
anm
or.c
om51
00 S
ilver
Sta
r R
oad,
Ver
non,
B.C
. Can
ada,
V1B
3K
4; (2
50) 5
45-2
693
Fax
(250
) 549
-434
9
5 of 12 © 2007 A 374e - 12/07
Ess
entia
l Con
trol
Set
tings
DH
W M
OD
E =
1 (
no
prio
rity
)
2 (
with
prio
rity
ove
r m
ix z
on
es)
MIX
1 M
OD
E =
1M
IX 2
MO
DE
= 1
A 3
74e-
212
/07
A1 =
DH
W A
qu
asta
tC
1, C
2 =
Actu
atin
g M
oto
rP
1 =
Pri
ma
ry P
um
pP
2 =
Mix
1 S
yste
m P
um
pP
3 =
Mix
2 S
yste
m P
um
pP
4 =
DH
W P
um
pP
5 =
Bo
iler
Zo
ne P
um
pS
1 =
Mix
1 S
up
ply
Se
nso
r 071e
S2 =
Mix
2 S
up
ply
Se
nso
r 071e
S3 =
Ou
tdo
or
Se
nso
r 070
eS
4 =
Bo
iler
Su
pp
ly S
en
so
r 071e
R1 =
Re
lay
V1, V
2 =
4
-Way M
ixin
g V
alv
eZ
1... Z
4 =
Th
erm
osta
tic V
alv
e
required
optio
nal
C24 V
(ac)
R
N230 V
(ac)
Cla
ss II
Tra
nsfo
rmer
L
Boile
r#1
Boile
r#2
S1 S2
P2
A1
R1
P3
P5
P1
P4
S4
S3
Do
not a
pply
pow
er
1314
1617
Opn 15A
5A
5A
5A
5A
5A
5A
5A
2.5
A2
.5A
Cls1
Var1
Pwr
Mix
Opn 2
Cls2
Var2
UnO
SwCo
mBo
ilO
utCo
mM
ix1M
ix2M
ix1 P2L
NN
Prim P1
Mix2 P3
Mix1
Dem
Com
Dem
Mix2
Dem
Setp
Dem
DHW
Dem
Boil
Dem
Com
Dem
12
34
56
78
910
1112
1518
1920
2122
2324
2526
2728
2930
31
374
e
Powe
rDH
WPm
p/Vl
vSt
age
1 /
Boil E
nbl.
Stag
e 2
/Se
tp E
nbl.
7 8 1 2
6 5 4 31
23 Cl
sCo
mO
pnC
12
3 Cls
Com
Opn
C
R
kanm
or 5
00e
Serie
s Th
erm
osta
ts
CRe
lay
1
C1
C2
Boile
r Sen
sor
Varia
ble
Off
Supp
lyIn
stal
ler
Adva
nced
Setb
ack
30%
Ena
ble
10%
Ena
ble
Retu
rn
Floa
ting
Rota
te
- App
licat
ion
Mec
hani
cal
Con
cept
Dra
win
gT
his
is o
nly
a c
oncept
dra
win
g,
not
an e
ngin
eere
d d
raw
ing.
It is n
ot
inte
nded t
o d
escribe
a c
om
ple
te s
yste
m, nor
any p
art
icula
r sys
tem
. It is
up to the s
yste
m d
esig
ner
to d
ete
rmin
e
the n
ecessary
com
ponents
for
and c
onfigura
tion o
f th
e p
art
icula
r sys
tem
bein
g d
esig
ned,
inclu
din
g additio
nal
equip
ment, is
ola
tion re
lays
(f
or
loads gre
ate
r th
an th
e contr
ol’s
specifie
d o
utp
ut
ratings),
and a
ny s
afe
ty d
evic
es w
hic
h in t
he judgem
ent
of
the d
esig
ner
are
appro
priate
, in
ord
er
to p
roperly s
ize, configure
and d
esig
n that sys
tem
and to e
nsure
com
plia
nce w
ith b
uild
ing a
nd s
afe
ty c
ode r
equirem
ents
.kanm
or
Contr
ol S
yste
ms L
td.,
ww
w.k
anm
or.c
om51
00 S
ilver
Sta
r R
oad,
Ver
non,
B.C
. Can
ada,
V1B
3K
4; (2
50) 5
45-2
693
Fax
(250
) 549
-434
9
© 2007 A 374e - 12/07 6 of 12
A 3
74e-
312
/07
Sys
tem
Ope
ratio
nT
he U
niv
ers
al
Reset
Contr
ol
374
e p
rovid
es f
ull
outd
oor
reset
to o
ne m
ix t
em
pera
ture
sys
tem
and o
ne m
ixin
g s
etp
oin
t te
mpera
ture
for
a f
an c
oil
unit.
The o
utp
ut
of
both
variable
speed i
nje
ction p
um
ps a
re m
odula
ted t
o p
rovid
e m
ixed s
upply
w
ate
r te
mpera
ture
s,
and t
o p
rote
ct
the b
oile
r fr
om
flu
e g
as c
ondensation.
The 3
74e a
lso c
ontr
ols
the s
upply
of
heat
to a
n
indirect D
om
estic H
ot W
ate
r (D
HW
) ta
nk. A
Setp
oin
t C
ontr
ol m
ain
tain
s tem
pera
ture
in a
pool u
sin
g the s
etp
oin
t dem
and. T
he
374
e s
tages a
sin
gle
tw
o-s
tage b
oile
r in
ord
er
to s
atisfy
the loads.
A1 =
DH
W A
qu
asta
tP
1 =
Pri
ma
ry P
um
pP
2 =
DH
W P
um
pP
3 =
Po
ol M
ix P
um
pP
4 =
Mix
1 V
ari
ab
le S
pe
ed I
nje
ctio
n P
um
pP
5 =
Mix
2 V
ari
ab
le S
pe
ed
In
jectio
n P
um
pP
6 =
Zo
ne
1 P
um
pP
7 =
Zo
ne
2 P
um
pS
1 =
Po
ol S
en
so
r 071e
S2 =
Mix
1 S
up
ply
Se
nso
r 071e
S3 =
Mix
2 S
up
ply
Se
nso
r 071e
S4 =
Ou
tdo
or
Se
nso
r 070
eS
5 =
Bo
iler
Su
pp
ly S
en
so
r 071e
R1, R
2, R
3 =
Re
lay
V1...V
4 =
Glo
be V
alv
e
or
Ba
lan
cin
g V
alv
e
Outd
oor
Sensor
(S4)
070e
230 V
(ac)
24 V
(ac)
Cla
ss II
Tra
nsfo
rmer
kanm
or
500e s
eries therm
osta
ts
P4
P6
R1
P7
R2
R3
V2
A1
P1
V3
V4
Fan C
oil
see E
ssay
E 0
21
V1
Set
poin
tC
ontr
ol
P5
DH
WTank
P2
P3
Boile
r S
upply
Sensor
(S5)
071e
Sepoin
t S
ensor
(S1) 07
1e
Mix
2 S
upply
Sensor
(S3)
071e
Mix
1 S
upply
Sen
sor
(S2)
071e
374e
- App
licat
ion
Ele
ctri
cal
Con
cept
Dra
win
gT
his
is o
nly
a c
oncept
dra
win
g,
not
an e
ngin
eere
d d
raw
ing.
It is n
ot
inte
nded t
o d
escribe
a c
om
ple
te s
yste
m, nor
any p
art
icula
r sys
tem
. It is
up to the s
yste
m d
esig
ner
to d
ete
rmin
e
the n
ecessary
com
ponents
for
and c
onfigura
tion o
f th
e p
art
icula
r sys
tem
bein
g d
esig
ned,
inclu
din
g additio
nal
equip
ment, is
ola
tion re
lays
(f
or
loads gre
ate
r th
an th
e contr
ol’s
specifie
d o
utp
ut
ratings),
and a
ny s
afe
ty d
evic
es w
hic
h in t
he judgem
ent
of
the d
esig
ner
are
appro
priate
, in
ord
er
to p
roperly s
ize, configure
and d
esig
n that sys
tem
and to e
nsure
com
plia
nce w
ith b
uild
ing a
nd s
afe
ty c
ode r
equirem
ents
.kanm
or
Contr
ol S
yste
ms L
td.,
ww
w.k
anm
or.c
om51
00 S
ilver
Sta
r R
oad,
Ver
non,
B.C
. Can
ada,
V1B
3K
4; (2
50) 5
45-2
693
Fax
(250
) 549
-434
9
7 of 12 © 2007 A 374e - 12/07
Ess
entia
l Con
trol
Set
tings
DH
W M
OD
E =
3S
etp
oin
t M
OD
E =
3M
IX 1
MO
DE
= 1
MIX
2 M
OD
E =
2
A 3
74e-
312
/07
A1 =
DH
W A
qu
asta
tP
1 =
Pri
ma
ry P
um
pP
2 =
DH
W P
um
pP
3 =
Po
ol M
ix P
um
pP
4 =
Mix
1 V
ari
ab
le S
pe
ed I
nje
ctio
n P
um
pP
5 =
Mix
2 V
ari
ab
le S
pe
ed
In
jectio
n P
um
pP
6 =
Zo
ne
1 P
um
pP
7 =
Zo
ne 2
Pu
mp
S1 =
Po
ol S
en
so
r 071e
S2 =
Mix
1 S
up
ply
Se
nso
r 071e
S3 =
Mix
2 S
up
ply
Se
nso
r 071e
S4 =
Ou
tdo
or
Se
nso
r 070
eS
5 =
Bo
iler
Su
pp
ly S
en
so
r 071e
R1, R
2, R
3 =
Re
lay
required
optio
nal
S1
C24 V
(ac)
R
N230 V
(ac)
Cla
ss II
Tra
nsfo
rmer
L
Lo
Hi
Boile
r
S2 S3
S5 S4
P4
A1
R1
P5
P2
P1
Do
not a
pply
pow
er
1617
Opn 15A
5A
5A
5A
5A
5A
5A
5A
2.5
A2.5
A
Cls1
Var1
Pwr
Mix
Opn 2
Cls2
Var2
UnO
SwCo
mBo
ilO
utCo
mM
ix1M
ix2M
ix1 P2L
NN
Prim P1
Mix2 P3
Mix1
Dem
Com
Dem
Mix2
Dem
Setp
Dem
DHW
Dem
Boil
Dem
Com
Dem
12
34
56
78
910
1112
1518
1920
2122
2324
2526
2728
2930
31
374
e
Powe
rDH
WPm
p/Vl
vSt
age
1 /
Boil E
nbl.
Stag
e 2
/Se
tp E
nbl.
C-R+
Com
N/O
N/C
12
34
56
7
Sens
orPo
wer
P6
R2
P7
P3
7 8 1 2
6 5 4 3
7 8 1 2
6 5 4 3
R3
7 8 1 2
6 5 4 3
1314
R
kanm
or 5
00e
Serie
s Th
erm
osta
ts
CRe
lay
1R
kanm
or 5
00e
Serie
s Th
erm
osta
tsSe
tpoi
nt C
ontro
l
CRe
lay
1
Boile
r Sen
sor
Varia
ble
Off
Supp
lyIn
stal
ler
Adva
nced
Setb
ack
30%
Ena
ble
10%
Ena
ble
Retu
rn
Floa
ting
Rota
te
- App
licat
ion
Mec
hani
cal
Con
cept
Dra
win
gT
his
is o
nly
a c
oncept
dra
win
g,
not
an e
ngin
eere
d d
raw
ing.
It is n
ot
inte
nded t
o d
escribe
a c
om
ple
te s
yste
m, nor
any p
art
icula
r sys
tem
. It is
up to the s
yste
m d
esig
ner
to d
ete
rmin
e
the n
ecessary
com
ponents
for
and c
onfigura
tion o
f th
e p
art
icula
r sys
tem
bein
g d
esig
ned,
inclu
din
g additio
nal
equip
ment, is
ola
tion re
lays
(f
or
loads gre
ate
r th
an th
e contr
ol’s
specifie
d o
utp
ut
ratings),
and a
ny s
afe
ty d
evic
es w
hic
h in t
he judgem
ent
of
the d
esig
ner
are
appro
priate
, in
ord
er
to p
roperly s
ize, configure
and d
esig
n that sys
tem
and to e
nsure
com
plia
nce w
ith b
uild
ing a
nd s
afe
ty c
ode r
equirem
ents
.kanm
or
Contr
ol S
yste
ms L
td.,
ww
w.k
anm
or.c
om51
00 S
ilver
Sta
r R
oad,
Ver
non,
B.C
. Can
ada,
V1B
3K
4; (2
50) 5
45-2
693
Fax
(250
) 549
-434
9
© 2007 A 374e - 12/07 8 of 12
A 3
74e-
412
/07
A1 =
DH
W A
qu
asta
tC
1, C
2 =
Actu
atin
g M
oto
rP
1 =
Pri
ma
ry P
um
pP
2 =
Mix
1 S
yste
m P
um
pP
3 =
Mix
2 S
yste
m P
um
pR
1 =
Re
lay
S1 =
Mix
1 S
up
ply
Se
nso
r 071e
S2 =
Mix
2 S
up
ply
Se
nso
r 071e
S3 =
Bo
iler
Su
pp
ly S
en
so
r 071e
S4 =
Ou
tdo
or
Se
nso
r 070
eV
1, V
2 =
Ba
lan
cin
g o
r G
lob
e V
alv
eV
3,
V4 =
4-W
ay M
ixin
g V
alv
eV
5, V
6 =
Pre
ssu
re D
iffe
ren
tia
l
Byp
ass V
alv
eZ
1 =
DH
W Z
on
e V
alv
eZ
2, Z
3 =
Bo
iler
Te
mp
. Z
on
e V
alv
eZ
4,
Z5 =
Mix
1 Z
on
e V
alv
eZ
6, Z
7 =
Mix
2 Z
on
e V
alv
e
Outd
oor
Sensor
(S4)
070e
230 V
(ac)
24 V
(ac)
Cla
ss II
Tra
nsfo
rmer
kanm
or
500e s
eries therm
osta
tskanm
or
500e s
eries therm
osta
ts
R1
V2
V3
V4
V5
C1
C2
V6
P2
Z4
Z3
Z2
Z1
Z5
Z6
Z7
P1
A1
P3
V1
DP
DP
M
M
DH
WTank
MM
MM
M
MM
Boile
r S
upply
Sensor
(S3)
071e
Mix
1S
upply
Sensor
(S1) 07
1e
Mix
2S
upply
Sensor
(S2) 07
1e
374e
Sys
tem
Ope
ratio
nT
he U
niv
ers
al R
eset C
ontr
ol 3
74e p
rovid
es full
outd
oor
reset to
tw
o s
epara
te m
ix tem
pera
ture
sys
tem
s, each w
ith tw
o z
ones.
The 3
74e m
odula
tes e
ach 4
-way m
ixin
g v
alv
e to p
rovid
e m
ixed s
upply
wate
r te
mpera
ture
s to e
ach s
yste
m, and to p
rote
ct th
e
boile
r fr
om
flu
e g
as c
ondensation.
There
are
tw
o b
oile
r te
mpera
ture
zones.
The 3
74e a
lso c
ontr
ols
the s
upply
of
heat
to a
n
indirect
Dom
estic H
ot
Wate
r (D
HW
) ta
nk.
The D
HW
tank h
as p
riority
ove
r th
e h
eating s
yste
m.
The 3
74e o
pera
tes a
sin
gle
boile
r on o
utd
oor
reset fo
r heating loads a
nd a
t setp
oin
t fo
r th
e D
HW
load.
- App
licat
ion
Ele
ctri
cal
Con
cept
Dra
win
gT
his
is o
nly
a c
oncept
dra
win
g,
not
an e
ngin
eere
d d
raw
ing.
It is n
ot
inte
nded t
o d
escribe
a c
om
ple
te s
yste
m, nor
any p
art
icula
r sys
tem
. It is
up to the s
yste
m d
esig
ner
to d
ete
rmin
e
the n
ecessary
com
ponents
for
and c
onfigura
tion o
f th
e p
art
icula
r sys
tem
bein
g d
esig
ned,
inclu
din
g additio
nal
equip
ment, is
ola
tion re
lays
(f
or
loads gre
ate
r th
an th
e contr
ol’s
specifie
d o
utp
ut
ratings),
and a
ny s
afe
ty d
evic
es w
hic
h in t
he judgem
ent
of
the d
esig
ner
are
appro
priate
, in
ord
er
to p
roperly s
ize, configure
and d
esig
n that sys
tem
and to e
nsure
com
plia
nce w
ith b
uild
ing a
nd s
afe
ty c
ode r
equirem
ents
.kanm
or
Contr
ol S
yste
ms L
td.,
ww
w.k
anm
or.c
om51
00 S
ilver
Sta
r R
oad,
Ver
non,
B.C
. Can
ada,
V1B
3K
4; (2
50) 5
45-2
693
Fax
(250
) 549
-434
9
9 of 12 © 2007 A 374e - 12/07
A 3
74e-
412
/07
A1 =
DH
W A
qu
asta
tC
1, C
2 =
Actu
atin
g M
oto
rP
1 =
Pri
ma
ry P
um
pP
2 =
Mix
1 S
yste
m P
um
pP
3 =
Mix
2 S
yste
m P
um
pR
1 =
Re
lay
S1 =
Mix
1 S
up
ply
Se
nso
r 071e
S2 =
Mix
2 S
up
ply
Se
nso
r 071e
S3 =
Bo
iler
Su
pp
ly S
en
so
r 071e
S4 =
Ou
tdo
or
Se
nso
r 070
eV
1, V
2 =
Ba
lan
cin
g o
r G
lob
e V
alv
eV
3,
V4 =
4-W
ay M
ixin
g V
alv
eZ
1 =
DH
W Z
on
e V
alv
eZ
2, Z
3 =
Bo
iler
Te
mp
. Z
on
e V
alv
eZ
4,
Z5 =
Mix
1 Z
on
e V
alv
eZ
6, Z
7 =
Mix
2 Z
on
e V
alv
e
Ess
entia
l Con
trol
Set
tings
DH
W M
OD
E =
4M
IX 1
MO
DE
= 1
MIX
2 M
OD
E =
1B
oil
2 =
OF
F
required
optio
nal
C24 V
(ac)
R
N230 V
(ac)
Cla
ss II
Tra
nsfo
rmer
L
Boile
r
S1 S2
S3 S4
A1
P2
P1
P3
Z4
MZ
3
MZ
1
C1
C2
R1
Mix
2
Mix
1
Zone V
alv
eM
oto
r E
nd
Sw
itches
M
Do
not a
pply
pow
er
1314
1617
Opn 15A
5A
5A
5A
5A
5A
5A
5A
2.5
A2
.5A
Cls1
Var1
Pwr
Mix
Opn 2
Cls2
Var2
UnO
SwCo
mBo
ilO
utCo
mM
ix1M
ix2M
ix1 P2L
NN
Prim P1
Mix2 P3
Mix1
Dem
Com
Dem
Mix2
Dem
Setp
Dem
DHW
Dem
Boil
Dem
Com
Dem
12
34
56
78
910
1112
1518
1920
2122
2324
2526
2728
2930
31
374
e
Powe
rDH
WPm
p/Vl
vSt
age
1 /
Boil E
nbl.
Stag
e 2
/Se
tp E
nbl.
7 8 1 2
6 5 4 3
R
kanm
or 5
00e
Serie
s Th
erm
osta
ts
CRe
lay
1R
kanm
or 5
00e
Serie
s Th
erm
osta
ts
CRe
lay
1
12
3 Cls
Com
Opn
C
12
3 Cls
Com
Opn
C
Boile
r Sen
sor
Varia
ble
Off
Supp
lyIn
stal
ler
Adva
nced
Setb
ack
30%
Ena
ble
10%
Ena
ble
Retu
rn
Floa
ting
Rota
te
Bo
iler
Zo
ne
s
- App
licat
ion
Mec
hani
cal
Con
cept
Dra
win
gT
his
is o
nly
a c
oncept
dra
win
g,
not
an e
ngin
eere
d d
raw
ing.
It is n
ot
inte
nded t
o d
escribe
a c
om
ple
te s
yste
m, nor
any p
art
icula
r sys
tem
. It is
up to the s
yste
m d
esig
ner
to d
ete
rmin
e
the n
ecessary
com
ponents
for
and c
onfigura
tion o
f th
e p
art
icula
r sys
tem
bein
g d
esig
ned,
inclu
din
g additio
nal
equip
ment, is
ola
tion re
lays
(f
or
loads gre
ate
r th
an th
e contr
ol’s
specifie
d o
utp
ut
ratings),
and a
ny s
afe
ty d
evic
es w
hic
h in t
he judgem
ent
of
the d
esig
ner
are
appro
priate
, in
ord
er
to p
roperly s
ize, configure
and d
esig
n that sys
tem
and to e
nsure
com
plia
nce w
ith b
uild
ing a
nd s
afe
ty c
ode r
equirem
ents
.kanm
or
Contr
ol S
yste
ms L
td.,
ww
w.k
anm
or.c
om51
00 S
ilver
Sta
r R
oad,
Ver
non,
B.C
. Can
ada,
V1B
3K
4; (2
50) 5
45-2
693
Fax
(250
) 549
-434
9
© 2007 A 374e - 12/07 10 of 12
A 3
74e-
512
/07
A1 =
DH
W A
qu
asta
tA
2 =
Ala
rmP
1, P
2, P
3 =
Bo
iler
Pu
mp
P4 =
Pri
ma
ry P
um
pP
5 =
DH
W P
um
pP
6 =
Mix
1 V
ari
ab
le S
pe
ed I
nje
ctio
n P
um
pP
7 =
Mix
2 V
ari
ab
le S
pe
ed I
nje
ctio
n P
um
pP
8 =
Mix
1 S
yste
m P
um
pP
9 =
Mix
2 S
yste
m P
um
pS
1, S
6 =
Ou
tdo
or
Se
nso
r 070
eS
2, S
7 =
Bo
iler
Re
turn
Se
nso
r 071e
S3 =
Bo
iler
Su
pp
ly S
en
so
r 071e
S4 =
Mix
1 S
up
ply
Se
nso
r 071e
S5 =
Mix
2 S
up
ply
Se
nso
r 071e
T1...T
4 =
Th
erm
osta
tV
1...V
4 =
Ba
lan
cin
g o
r G
lob
e V
alv
eV
5, V
6 =
Pre
ssu
re D
iffe
ren
tia
l
Byp
ass V
alv
eZ
1...Z
4 =
Zo
ne V
alv
e
Ala
rm (
A2)
Outd
oor
Sensor
(S6)
070e
230 V
(ac)
24 V
(ac)
Cla
ss II
Tra
nsfo
rmer
Outd
oor
Sensor
(S1)
070e
P4
V2
Z1
A1
P5
DH
WTank
P6
see E
ssay
E 0
21
see E
ssay
E 0
21
P1
P2
P8
P7
V3
V4
V1
Z2
MM
ΔP
V5
Z4
Z3
T4
T3
T2
T1
P9
MM
DP
V6
Boile
rR
etu
rnS
ensor
(S2) 07
1e
Boile
rR
etu
rnS
ensor
(S7) 07
1e
Boile
rS
upply
Sensor
(S3)
071e
Mix
1S
upply
Sensor
(S4)
071e
Mix
2S
upply
Sensor
(S5)
071e
374e
264e
Sys
tem
Ope
ratio
nT
he U
niv
ers
al
Reset
Contr
ol
374
e a
nd B
oile
r C
ontr
ol
264e a
re c
om
bin
ed t
o p
rovid
e f
ull
outd
oor
reset
to t
wo s
epara
te m
ix
tem
pera
ture
sys
tem
s. T
he o
utp
ut of th
e v
ariable
speed p
um
ps c
an b
e m
odula
ted to p
rovid
e a
mix
ed s
upply
wate
r te
mpera
ture
to
the m
ix z
ones,
and p
rote
ct
the b
oile
rs f
rom
flu
e g
as c
ondensation.
The 3
74e a
lso c
ontr
ols
the s
upply
of
heat
to t
he
Dom
estic H
ot
Wate
r (D
HW
) ta
nk.
The 2
64e s
tages a
nd r
ota
tes t
wo s
ingle
sta
ge b
oile
rs a
nd o
pera
tes t
he b
oile
r pum
ps t
o
pro
vid
e p
re-p
urg
e a
nd p
ost-
purg
e o
n e
ach b
oile
r.
- App
licat
ion
Ele
ctri
cal
Con
cept
Dra
win
gT
his
is o
nly
a c
oncept
dra
win
g,
not
an e
ngin
eere
d d
raw
ing.
It is n
ot
inte
nded t
o d
escribe
a c
om
ple
te s
yste
m, nor
any p
art
icula
r sys
tem
. It is
up to the s
yste
m d
esig
ner
to d
ete
rmin
e
the n
ecessary
com
ponents
for
and c
onfigura
tion o
f th
e p
art
icula
r sys
tem
bein
g d
esig
ned,
inclu
din
g additio
nal
equip
ment, is
ola
tion re
lays
(f
or
loads gre
ate
r th
an th
e contr
ol’s
specifie
d o
utp
ut
ratings),
and a
ny s
afe
ty d
evic
es w
hic
h in t
he judgem
ent
of
the d
esig
ner
are
appro
priate
, in
ord
er
to p
roperly s
ize, configure
and d
esig
n that sys
tem
and to e
nsure
com
plia
nce w
ith b
uild
ing a
nd s
afe
ty c
ode r
equirem
ents
.kanm
or
Contr
ol S
yste
ms L
td.,
ww
w.k
anm
or.c
om51
00 S
ilver
Sta
r R
oad,
Ver
non,
B.C
. Can
ada,
V1B
3K
4; (2
50) 5
45-2
693
Fax
(250
) 549
-434
9
11 of 12 © 2007 A 374e - 12/07
Ess
entia
l Con
trol
Set
tings
374
e:
DH
W M
OD
E =
1 (
no
prio
rity
)
2 (
prio
rity
)374
e: M
IX 1
MO
DE
= 1
374
e: M
IX 2
MO
DE
= 1
374
e: 374
Boile
r M
in =
264e B
oile
r M
in -
20°
F2
64
e =
MO
DE
2
A 3
74e-
512
/07
A1 =
DH
W A
qu
asta
tA
2 =
Ala
rmP
1, P
2, P
3 =
Bo
iler
Pu
mp
P4 =
Pri
ma
ry P
um
pP
5 =
DH
W P
um
pP
6 =
Mix
1 V
ari
ab
le S
pe
ed
In
jectio
n P
um
pP
7 =
Mix
2 V
ari
ab
le S
pe
ed
In
jectio
n P
um
pP
8 =
Mix
1 S
yste
m P
um
pP
9 =
Mix
2 S
yste
m P
um
pS
1, S
6 =
Ou
tdo
or
Se
nso
r 070
eS
2, S
7 =
Bo
iler
Re
turn
Se
nso
r 071e
S3 =
Bo
iler
Su
pp
ly S
en
so
r 071e
S4 =
Mix
1 S
up
ply
Se
nso
r 071e
S5 =
Mix
2 S
up
ply
Se
nso
r 071e
T1...T
4 =
Th
erm
osta
tZ
1...Z
4 =
Zo
ne V
alv
e
C24 V
(ac)
R
N230 V
(ac)
Cla
ss II
Tra
nsfo
rmer
L
S7 S6
S4 S5
P6
A1
P8
P2
P1
Do
not a
pply
pow
er
1314
1617
Opn 15A
5A
5A
5A
5A
5A
5A
5A
2.5
A2.5
A
Cls1
Var1
Pwr
Mix
Opn 2
Cls2
Var2
UnO
SwCo
mBo
ilO
utCo
mM
ix1M
ix2M
ix1 P2L
NN
Prim P1
Mix2 P3
Mix1
Dem
Com
Dem
Mix2
Dem
Setp
Dem
DHW
Dem
Boil
Dem
Com
Dem
12
34
56
78
910
1112
1518
1920
2122
2324
2526
2728
2930
31
374
e
Powe
rDH
WPm
p/Vl
vSt
age
1 /
Boil E
nbl.
Stag
e 2
/Se
tp E
nbl.
P7
P9
P4
P5
Mix
2
Mix
1
Zo
ne V
alv
eM
oto
r E
nd
Sw
itchesS
3 S2 S
1
A2
Do
not a
pply
pow
er
1 Com
2 Boil
Sup
3 Boil
Ret
4 Out
5 UnO
Sw
6 Boil
Dem
7 Com
Dem
8 Setp
/DH
W
9 Powe
rN
LPr
im P1
12 C.A.
/Al
arm
Pmp/
Vlv
1314 Re
lay
1
1510
11
1
16 Rela
y2
17 2
18 Rela
y3
19 3
20 Rela
y4
21 4
22 DHW23
26
4e
5A
5A
5A
5A
5A
5A
5A
Boile
r#1
Boile
r#2
Boile
r Sen
sor
Varia
ble
Off
Supp
lyIn
stal
ler
Adva
nced
Setb
ack
30%
Ena
ble
10%
Ena
ble
Retu
rn
Floa
ting
Rota
te
Fixe
d Le
adFi
rst O
n / L
ast O
ff
Firs
t On
/ Firs
t Off
Alar
mAd
vRo
tate
Fixe
d La
st
Off
Exer
cise
Off
C.A.
Inst
alle
rSt
and
Alon
e
Exte
rnal
Inpu
t
12 of 12© 2007 by kanmor Control Systems Ltd. Used with permission.kanmor trademark is used under license.
All specifications are subject to change without notice.Printed in Canada. A 374e - 12/07.
kanmor Control Systems Ltd.5100 Silver Star RoadVernon, B.C. CANADA V1B 3K4250-545-2693 Fax. 250-549-4349Web Site: www.kanmor.com
The following are the recommended specifications for the Universal Reset Control 374e.
The control shall be able to control the supply fluid temperature of two mixing devices.
The control shall have the option to directly operate two variable speed injection pumps or two mixing valves with floating action actuating motors.
The control shall have the ability to provide outdoor reset to each mixing system.
The control shall have the ability to provide a setpoint temperature to one mixing system.
The control shall have the ability to limit the amount of cool water being returned to the boiler through the mixing device in order to prevent low boiler operating temperatures and flue gas condensation.
The control shall have a mix system pump contact for each mixing device.
The control shall be able to operate boilers that have one or two stages.
The control shall have a primary pump contact that operates during a call for space heating.
The control shall have the ability to calculate the boilers’ target temperature based on outdoor reset.
The control shall have the ability to have the boilers’ target temperature set using an adjustable setpoint.
The control shall provide heat to the space heating system as needed unless the outdoor air temperature is warmer than the control’s warm weather shut down temperature setting.
The control shall have an adjustable warm weather shut down.
The control shall have an option to rotate the firing sequence of the boilers and the option for rotating the boiler firing sequence shall be based on the boilers’ accumulated running hours.
The control shall use proportional, integral and derivative (PID) logic when staging boiler stages.
The control shall have an adjustable Minimum Supply water temperature setting to help prevent condensation of flue gases and subsequent corrosion and blockage of the boilers’ heat exchanger and chimney.
The control shall have the option of an automatic differential calculation in order to prevent short cycling of the stages.
The control shall have an adjustable minimum inter-stage delay that can be set manually or calculated automatically by the control.
The control shall have the ability to operate a domestic hot water contact that operates during a domestic hot water call.
The control shall have the ability to provide domestic hot water priority and to limit the maximum allowed domestic hot water priority period based on the outdoor air temperature.
The control shall have two separate lockable access levels to limit the number of adjustments available to various users.
The control shall have a test button that activates a pre-programmed test sequence testing all the control’s outputs.
The control shall have the ability to show the current outdoor, boiler supply, mixing device number one and mixing device number two temperatures.
The control shall continuously monitor its temperature sensors and provide an error message upon a control or sensor failure.
During extended periods of inactivity, the pumps or valves that are operated by the control shall be periodically exercised to prevent seizure during long idle periods.
The control shall have an internal timer that shall have two events per day on a 24 hour, 5-1-1 day or 7 day schedule.
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Specifications