Alternate Heating WOOD GUN Super E210, Инструкция по установке и эксплуатации

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Pressure regulating valve and back-flow prevention
valve configuration
Expansion Tank Selection
Clos d loop syst ms r quir th us of an
xpansion tank. The SE210 holds roughly 80 gallons
of wat r. The xpansion tank or air cushion tank that
was originally install d will not lik ly b ad quat
for th additional volum of wat r add d to th
syst m with th inclusion of a Wood Gun™. The tank
must b siz d bas d on total wat r volum and th
diff r nc b tw n th low and high t mp ratur s of
this wat r. Wh n prop rly siz d, it will
accommodat th th rmal xpansion of th wat r
b ing h at d without cr ating an ov r-pr ssur
situation. Som clos d loop syst ms ar isolat d from
an op n (atmosph ric) sid of th syst m, or anoth r
clos d loop, by a h at xchang r. For calculating
syst m volum , only th volum in ach r sp ctiv
clos d loop is calculat d, with ach clos d loop
r c iving its own d dicat d xpansion tank capacity.
If th auto-fiell valv ngag s and adds wat r to th
syst m wh n cold, and th boil r subs qu ntly builds
too much pr ssur wh n hot, you do not hav
ad quat xpansion capacity. W r comm nd at
minimum to install a #90 xpansion tank (14 gallon
capacity).
RETURN WATER TEMPERATURE
As a rul , wat r r turning to th boil r should b
not mor than 20º F l ss than supply wat r
t mp ratur going to th syst m. A r -circulation
loop is a r quir m nt to maintain optimum r turn
wat r t mp ratur s. Theis would optimally includ a
th rmom t r on th r turn lin nt ring th boil r
for monitoring purpos s, and a mixing valv to
maintain minimum r turn wat r t mp ratur s.
R turn wat r t mp ratur n ar or b low 140º F
cr at s th risk of s v r cond nsation issu s. Theis
will ofte n produc unpl asant odors and possibl
liquid runoff in th boil r room. Mor s riously, it
will l ad to cr osot formation on h at xchang
surfac s and insid th chimn y, with accompanying
risk of a chimn y fier .
Vi w th following diagram for a sampl piping
layout utilizing a mixing valv on th boil r r turn.
The mixing valv shown is a cartridg typ . Wat r
t mp ratur is r gulat d by th us of a sp cifiec
cartridg install d in th valv to control
t mp ratur of th wat r r turning to th boil r.
Three Mixing Valve: Return Water Protection
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