Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
Wood Boiler Plumbing Schematics
Solo Plus
Solo Innova
Froling FHG
Excel Multi-Fuel
2 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
3 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
TABLE OF CONTENTS Section Page 1.0 Introduction………………………………………………………………………………………..4 2.0 Plumbing Diagrams.……………………………………………………….……………..5
2.1 Plumbing Example-Solo/Excel 1..………...………………………………………..….5 2.2 Plumbing Example-Solo/Excel 1 ZV..………………………………………...……....6 2.3 Plumbing Example-Solo/Excel 1 w/Alpha Pump..…………………………………….7 2.4 Plumbing Example-Solo 2……………………………………………….…………….8 2.5 Plumbing Example-Solo 3………………………………………………………...…...9 2.6 Plumbing Example-Solo .…………………………………………………………….10 2.7 Plumbing Example-F...……….………………………………………………………11 2.8 Plumbing Example-E…………………………………………………………………12 2.9 Plumbing Example-D……………………………………………...…………………13 2.10 Plumbing Example-STSS …………………………………………………………..14 2.11 Plumbing Example-STSS.…………………………………………………………..15 2.12 Plumbing Example-Square Tank……………………………………………………16 2.13 Plumbing Example-Square Tank Large…………………………………………….17 2.14 Plumbing Diagram-PT1C...…………………………………………………………18 2.15 Plumbing Diagram-PT1ZV..………………………………………………………..19 2.16 Plumbing Diagram-PT2...…………………………………………………………...20 2.17 Plumbing Diagram-PT3……………………………………………………………..21 2.18 Plumbing Diagram-PT4……………………………………………………………..22 2.19 Plumbing Diagram-Automix Single Tank.………………………………………….23 2.20 Plumbing Diagram-Automix Multi-Tank.………………………………………….24
Appendix ……………………………………………………………………………………………..25 Appendix A-Automix Plumbing Notes…...……………………………………………...25 Appendix B-Overheat Loop: No Electricity….…………………………………………..26 Appendix C-Thermostatic Mixing Valve ……………………….…………..…………...27 Appendix D-Overheat and Circulator Aquastat Wiring Connections…….……………...28 Appendix E-Excel Wiring Schematics..….…….………………………………………...29 Appendix F-Termovar LK810 Information Sheet…...……………………….…………..32 Appendix G-Automix 10 Information Sheet……………………………………………..33 Appendix H-Termovar Loading Valve Information Sheet...……………………………..34 Appendix I-Termovar AF Bypass Valve Information Sheet……………………..………35 Notes:………………………………………………………..……………………………36
4 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
1.0 Introduction Dear Valued Tarm Biomass Customer Here at Tarm Biomass we want to make your installation as smooth as possible. This document in-cludes a wide range of system designs that should meet your installation needs. The systems shown in this document are only examples and they should not substitute for complete system planning. We reserve the right to make technical changes without prior notice. If more information is needed, please contact your local Tarm Biomass dealer or call us directly at 1-800-782-9927. The Tarm Biomass Team
5 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
2.0 Plumbing Diagrams 2.1Plumbing Example-Solo/Excel 1
6 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
2.2 Plumbing Example-Solo/Excel 1 ZV
7 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
Tarm
Bio
mas
s4
Brit
ton
Lane
Lym
e, N
H 0
3768
Dra
wn
by: T
SP
Tarm
Bio
mas
s Pi
ping
Lay
out C
once
pt D
iagr
am
Woo
d B
oile
r use
d as
an
ON
LY B
OIL
ERN
o Th
erm
al S
tora
geD
ate
DW
G N
OR
EV07
-14-
2010
Solo
/Exc
el 1
w/A
lpha
Pum
p1
SCA
LEN
/ASH
EET
1O
F 5
1 2
Woo
d B
oile
r
This
is o
nly
a co
ncep
tdra
win
g. F
inal
des
ign,
inst
alla
tion
and
code
com
plia
nce
deta
ils a
re th
e re
spon
sibi
lity
of th
e de
sign
er/in
stal
ler o
f the
sys
tem
.
C-1
1¼"
1¼"
Aut
omag
Zone
Val
veP
art #
AU
TOM
AG
C-3
A
1¼"
3
Zone
Val
ve S
uppl
y M
anifo
ld
TT
T
B CTe
rmov
ar M
ixin
g V
alve
(2 O
ptio
ns A
vaila
ble)
Opt
ion
B In
clud
es p
ump
and
built
in b
alan
cing
val
ve. D
o no
t in
stal
l Pum
p la
bele
d C
-3A
Em
erge
ncy
Gra
vity
Flo
w O
verh
eat L
oop
Nee
ds to
be
10%
of W
ood
Boi
ler O
utpu
t. A
utom
ag n
eeds
to b
e in
stal
led
in th
e ho
rizon
tal p
ositi
on.
DB
alan
cing
Val
ve R
equi
red.
(Sta
rt w
ith V
alve
Clo
sed
halfw
ay, i
.e.,
at 4
5 de
gree
s)
Circ
ulat
or w
/ Iso
latio
n Fl
ange
s
Ball
Valv
e
Purg
ing
Valv
e
Wei
ghte
d C
heck
Val
ve
Back
flow
Pre
vent
er
Dra
in V
alve
Uni
on
Pres
sure
Rel
ief V
alve
Pres
sure
Red
ucin
g Va
lve
Zone
Val
ve
Cen
tral A
ir S
eper
ator
Sym
bol K
ey
Term
ovar
Tem
perin
g Va
lve
Ther
mos
tat
Feed
B
TV-1
Par
t #
K44
40A
-3
D
C
EA
mtro
l 60
or E
quiv
alen
t Exp
ansi
on T
ank
is S
uita
ble
for m
ost S
olo
Plu
s In
stal
latio
ns u
p to
86
gallo
ns
E
C-3
B
Term
ovar
O
ptio
n A
Term
ovar
Loa
ding
U
nit O
ptio
n B
(C-3
A no
t nee
ded)
TV-1
Part
# 48
32S2
3
1
Tem
pera
ture
/Pre
ssur
e G
auge
F
FC
heck
Val
ve S
houl
d be
a S
win
g C
heck
and
not
a W
eigh
ted
Che
ck V
alve
.
Zone
Val
veC
ontro
ller
SYS
TEM
NO
TES:
Part
# L4
008B
A
AH
oney
wel
l L40
08B
Ove
rhea
t Aqu
asta
t Set
to 2
00ºF
. Con
nect
ed to
the
Larg
est H
eatin
g C
ircui
t.-U
sed
with
the
Solo
Plu
s W/A
nalo
g C
ontr
olle
r, F
rolin
g FH
G, a
nd S
olo
Inno
va.
Zone
Val
ve R
etur
n M
anifo
ldA
uto
Ada
ptin
g C
ircul
ator
Par
t # A
lpha
G
Aut
o A
dapt
ing
Circ
ulat
or (A
lpha
). C
ircul
ator
is n
ot w
ired
to b
oile
r.G
Not
e-U
se W
ire A
for
Exc
el B
oile
r
2.3 Plumbing Example-Solo/Excel 1 w/Alpha Pump
8 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
2.4 Plumbing Example-Solo 2
9 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
2.5 Plumbing Example-Solo 3
10 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
2.6 Plumbing Example-Solo 4
11 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
2.7 Plumbing Example-F
12 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
2.8 Plumbing Example-E
13 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
2.9 Plumbing Example-D
14 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
2.10 Plumbing Example-STSS 1
15 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
2.11 Plumbing Example-STSS 2
16 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
2.12 Plumbing Example-Square Tank
17 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
2.13 Plumbing Example-Square Tank Large
18 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
2.14 Plumbing Example-PT1C
19 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
2.15 Plumbing Example-PT1ZV
20 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
2.16 Plumbing Example-PT2
21 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
2.17 Plumbing Example-PT3
22 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
2.18 Plumbing Example-PT4
23 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
2.19 Plumbing Example-Automix Single Tank
24 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
2.20 Plumbing Example-Automix Multi-Tank
25 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
Syst
em N
otes
A
Ope
n Ex
pans
ion
optio
n. T
he ta
nk si
zing
is 1
0% o
f sys
tem
wat
er v
olum
e. T
he ta
nk n
eeds
to b
e at
leas
t 10’
abo
ve
the
high
est p
oint
in th
e sy
stem
. The
re c
anno
t be
any
isola
tion
valv
es b
etw
een
the
tank
and
syst
em. T
he ta
nk sh
ould
be
run
to a
dra
in.
B Ex
pans
ion
tank
Siz
ing
(tank
not
nee
ded
with
ope
n ex
pans
ion)
400
gal
lons
nee
ds a
n A
mtro
l SX
90V
or e
quiv
alen
t. 60
0 ga
llons
nee
ds a
n A
mtro
l SX
110
or e
quiv
alen
t.
C Em
erge
ncy
Gra
vity
Flo
w O
verh
eat L
oop-
Nee
ds to
be
10%
of W
ood
Boile
r Out
put.
The
Aut
omag
Zon
e V
alve
M
ust b
e M
ount
ed H
oriz
onta
lly.
D
Ope
n on
rise
aqu
asta
t to
lock
-out
bac
k-up
boi
ler (
One
with
30ºΔT
Rec
omm
ende
d). U
sual
setti
ng o
f 140
-150
ºF.
Mou
nt se
nsor
bul
b on
tank
surf
ace
(or i
n w
ell t
appi
ng, i
f ava
ilabl
e) n
ear t
op ta
ppin
g w
ith e
ither
tape
or s
trap.
E Th
erm
al st
orag
e ta
nk si
zing
-Min
. 400
gal
lons
/100
,000
Btuh
. The
tank
s sho
uld
be in
stalle
d cl
ose
to e
ach
othe
r and
to th
e bo
iler t
o ta
ke a
dvan
tage
of s
elf-c
ircul
atio
n du
ring
a po
wer
out
age.
The
retu
rn p
ipe
shou
ld b
e ru
n lo
w to
the
grou
nd a
nd a
load
ing
unit
mus
t be
insta
lled
with
the
back
flow
pre
vent
er in
stalle
d.
F T
ypic
al Z
one
Val
ve c
ontro
l or M
ultip
le C
ircul
ator
rela
y.
G
Typ
ical
Dua
l zon
e sw
itchi
ng re
lay.
H
L
K A
caso
Aut
omix
10
outd
oor r
eset
con
trol.
I C
onne
ct th
e bo
iler c
onne
ctio
ns to
the
tank
s dia
gona
lly, X
-X.
Con
nect
the
radi
ator
con
nect
ions
to th
e ta
nk d
iago
nally
, Y-Y
. J
Mot
oriz
ed z
one
valv
e or
Bal
l Val
ve si
zed
to sy
stem
pip
ing.
Hea
ting
Syst
em N
otes
Opt
ion
A
This
opt
ion
take
s ful
l adv
anta
ge o
f the
Aca
so C
10 c
ontro
l and
Gru
ndfo
s Alp
ha p
ump.
The
C10
con
trol
will
aut
omat
ical
ly a
djus
t sup
ply
wat
er te
mpe
ratu
re to
refle
ct o
utsid
e te
mpe
ratu
re. T
he A
lpha
pum
p co
ntin
uous
ly fi
ne tu
nes p
ower
con
sum
ptio
n an
d flo
w ra
tes t
o th
e ne
eds o
f the
hea
ting
syst
em. T
his
com
bina
tion
will
save
you
ene
rgy
and
mon
ey. T
he h
igh
tem
pera
ture
zon
es a
re c
ontro
lled
by z
one
valv
es.
If th
ere
are
Lo-T
empe
ratu
re z
ones
(rad
iant
); a
seco
nd C
10 c
ontro
l can
be
utili
zed
to c
ontro
l sup
ply
tem
pera
ture
. An
Alp
ha p
ump
is no
t nee
ded
in th
is ap
plic
atio
n.
Opt
ion
B H
i-Tem
pera
ture
zon
es w
ith c
ircul
ator
s. A
n A
lpha
pum
p is
not n
eede
d in
this
appl
icat
ion.
Opt
ion
C Lo
-Tem
pera
ture
zon
es (r
adia
nt) w
ith c
ircul
ator
s. A
n A
lpha
pum
p is
not
nee
ded
in th
is ap
plic
atio
n.
•
All
thre
e op
tions
util
izin
g th
e C1
0 co
ntro
l will
ext
end
the
heat
out
-put
from
the
stora
ge ta
nk sy
stem
bec
ause
the
heat
ing
syste
m is
onl
y ta
king
ene
rgy
requ
ired
from
the
stora
ge ta
nk sy
stem
. •
If
insta
lled
prop
erly
; sto
rage
tank
syste
m c
an b
e ut
ilize
d as
a p
ower
-out
dum
p zo
ne.
•
Sol
ar c
an e
asily
be
inte
grat
ed.
Appendix Appendix A-Automix Plumbing Notes
26 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
Appendix B-Overheat Loop: No Electricity
The piping and controls must be connected to the boiler in such a way that in the event of a power fail-ure there is one loop of radiation available for gravity circulation. This loop must not be obstructed by any valves or other accessories which would prevent gravity circulation during a power failure. The piping is plumbed in such a way that excessive pressure will not be developed in any portion of the boiler or system. The loop must be large enough to dissipate at least 10% of the boiler’s maximum rated heat output, assuming an ambient temperature of 65 °F (18 ºC) and a mean water temperature of 180 ºF (82 ºC). The minimum pipe size for this loop is ¾” and if possible, the loop should be located and pitched to maximize natural thermal convection of the water. The loop must be positioned above the boiler. The design of the loop must be such that it can be made inoperative only in a deliberate manual action. If large enough, an existing heating radiation zone may be used for the over-heat loop. The loop must be equipped with zone valves which will open automatically during a power failure. We recommend AUTOMAG zone valves for this application (offered as an accessory).
Boiler Output Recommended Minimum Baseboard Length¹
30kW (100,000Btuh) 18’
40kW (140,000Btuh) 26’
50kW (170,000Btuh) 32’
60kW (200,000Btuh) 36’
1
Overheat Example
27 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
Appendix C-Thermostatic Mixing Valve A Thermostatic Mixing Valve or Loading Unit must be incorporated into the heating system piping as shown in the figure below. When the Mixing Valve is used a ball valve (I) (not provided) must be in-stalled upstream of Port 1 of valve TV-1. The valve should be set at half open (and the handle re-moved after it is set), in order for the tempering loop to function correctly. If there are unions included with the Mixing Valve or the Loading Unit, the internal valves must be fully open. A circulator is inte-grated into the Loading Unit, so a circulator is not required.
28 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
Appendix D-Overheat and Circulator Aquastat Wiring Connections For boilers without connections for the overheat aquastat or boiler circulator, please use the connec-tions below:
Overheat Aquastat Connections*
C-3 Circulator Connections**
**Used for older boilers or the Solo Plus with the Analog control.
*Used for older boilers or the Solo Plus with the Analog control, Froling FHG, and the Solo Innova.
29 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
Appendix E-Excel Wiring Schematics Wire A-Used with a Heating System with Circulators
30 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
Appendix E-Excel Wiring Schematics Wire B-Used with a Heating System with Zone Valves
31 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
Appendix E-Excel Wiring Schematics Wire C-Used with a Heat Storage Tank System
32 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
TERMOVAR LOADING UNIT is a pre-fabricated, automatic, thermally operated valve unit for solid-fuel boiler/storage tank installations, where heating and domestic hot water are taken from the storage tank. TERMOVAR LOADING UNIT ensures a minimum return-water tempera-ture into the solid-fuel boiler, which increases the boiler efficiency, prevents tarring and considera-bly prolongs the lifetime of the solid-fuel boiler. TERMOVAR eliminates the risk of destructive thermal shock caused by surges of cold water re-turn water. TERMOVAR renders a more effective burning and is therefore a necessary part of a solid fuel installation with a storage tank.
Technical Data Voltage Power Consumption Thermostatic Element Max. Boiler Capacity Max. Operating Temperature Max. Operating Pressure Circulation Pump Max. Flow Sizes Body Dimensions Weight
115 VAC 60HZ Pump speed I 60W Pump Speed II 80W Pump Speed III 87W 140 ºF (60 ºC) 256,000Btuh (75kW) 230ºF (110ºC) 145 psi (10 bar) Grundfos UPS 15-58U 740 gal/h (2800 l/h) NPT 1¼” Brass EN 12165 CW617N 8¼” X 8¼ X 4¼” (210 X 210 X 110mm) 10.58 lbs (4.8kg)
Termovar Loading Unit
Termovar Includes: 1. Thermally operated loading valve 2. Backflow preventer 3. Circulator pump 4. Three thermometers 5. Three ball valves 6. Insulation EPP
Termovar Loading Unit has several advantages: • The pre-fabricated unit saves time and provides a quick and trouble-free installation. • The loading unit provides a constant loading temperature to the storage tank. • It can be installed on the right-hand or left-hand side of the boiler. • The loading unit is installed on the return pipe which means that the supply pipe is free for
expansion and the unit is never affected by steam in case of an overheated boiler. • Service friendly. All parts can be changed without draining the system.
Appendix F-Termovar LK810 Information Sheet
33 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
AUTOMIX 10 is an advanced, compact outdoor reset control for hydronic baseboard, radiator, and radiant floor heating applications. AUTOMIX 10 works continuously and propor-tionally. Through impulses from the sensors the control adjusts the supply water temperature as the outdoor temperature changes. AUTOMIX 10 includes a min. and max. limiter for the supply water temperature and a freeze pro-tection feature. AUTOMIX 10 is delivered factory wired which minimizes installation problems in the field. The main supply and all sensors have plug-in connections. The quick and easy do-it-yourself installation saves on labor charges.
Technical Data Type of Control Voltage Power Consumption Torque Angle of Rotation Heating Curve Parallel Displacement Min. supply water limiter Max. supply water limiter Freeze Protection Manual operation Protection class Dimensions Weight
PI-control with microprocessor 18 VAC 50/60HZ 3VA 5Nm 90º, electrically limited 1-9, stepless ±10ºC supply water temperature, stepless +15ºC - +35ºC supply water temperature +40ºC - +90ºC supply water temperature +15ºC - +35ºC supply water temperature Yes, when necessary IP 40 3.15” x 3.54” x 3.66” 2.17lbs (0.6Kg)
AUTOMIX 10
Termovar Includes: 1. Valve motor with built-in electronics 2. Mounting Kit 3. Power adaptor 4. Supply water sensor T1 with 1 m wire 5. Outdoor sensor T2 with 15 m wire
AUTOMIX 10 is mounted to Termomix
3-way Valve
Appendix G-Automix 10 Information Sheet
34 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
Technical Data Opening Temperature Max. Operating Temperature Max. Operating Presure Size Flow Coefficient Weight Valve Body
162ºF (72ºC) 230º (110ºC) 1.0 MPa (10bar) 1¼” 12 Kvs 1.54lbs (0.7Kg) Brass TV 15 - TV 40
Termovar Loading Valve The TERMOVAR TEMPERING VALVE is an auto-matic thermally operated tempering valve for solid-fuel boiler installations with or without a storage tank. The TERMOVAR ensures a minimum return water tem-perature to the heating boiler, which increases combus-tion efficiency, prevents tarring and considerably pro-longs the lifetime for the solid-fuel boiler. The TERMO-VAR eliminates the risk of destructive thermal shock to both steel and cast iron boilers. The TERMOVAR ther-mally operated tempering valves render a more effective burning and are therefore a necessary part of a solid-fuel boiler installation.
Valve shown with Unions
Appendix H-Termovar Loading Valve Information Sheet
35 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
Technical Data Opening Temperature Max. Operating Temperature Max. Operating Presure Size Flow Coefficient Weight Valve Body
162ºF (72ºC) 230º (110ºC) 1.0 MPa (10bar) 1¼” 12 Kvs 1.54lbs (0.7Kg) Brass TV 15 - TV 40
Termovar AF Bypass Valve Termovar AF thermostatic 3-way bypass valves are de-signed to change the direction of flow in hydronic heat-ing applications. The Termovar Bypass (diverting) valve is an automatic thermally operated diverting valve for solid-fuel boiler installations with storage tank. Having a Termovar AF valve installed in your system will improve overall efficiency and improve the effec-tiveness of the heat storage tank system.
Appendix I-Termovar AF Bypass Valve Information Sheet
36 Wood Boiler Plumbing Schematics 1-800-782-9927 Version 12-10
Tarm Biomass · 4 Britton Lane · Lyme, NH 03768
Notes: