h
1'
H'
Jv'>
rh
HYORONIC
BALANCER
.'-',I
hS
GAS
r
~
r
;h'h
Where
an
exhaust
fan
is
installed
in
the
same
LEVELLING
room
with
a
boiler,
sufficient
openings
for
air
must
be
provided
In
the
walls.
Undersized
open-
The
boiler
should
be
checked
during
and
after
ings
will
cause
air
to
be
drawn
into
the
room
installation
to
be certain
that
it
is
level.
JI
•
through
the
chirn.ney,
causing
poor
combustion.
Scoting
may
result
in
serious
damage
to
the
If
the
unit
is
not
level,
shims
should
be
inserted
boiler.
under
the
unit
to
correct
this
condition.
INSTALLATION
CLEARANCES
WATER
LINE
CONNECTIONS
(Fig.
1)
These
units
are
listed
for
installation
with
the
following
minimum
clearances:
In
all
cases,
local
codes
have
authority
over
the
I.'
following
Instructions:
6"
between
sides
and
rear
of
unit
and
combustion
construction.
1.
Supply
and
Return
Lines.
Be
sure
that
sys-
tem'supply
and
return
lines
are
connected
to
24"
should
be
provided
at the
front
of the
unit
for
the
proper
boiler
connections,
fig.
1,
to
pro-
proper
servicing.
In
a
utility
room
installation,
vide
up flow
of water
through
the
boiler.
the
door
shall
be
wide
enough
toallow
the
bolter
to
enter
or
to
permit
the
rdplacement
of
another
2.
Hydronic
Balancer.
Piping
in fig.
1 includes
appliance
such
as
a water
heater.
a
hydronic
balancer
by-pass
between
supply
and
return
lines.
This
will
permit
adjustment
It
is
recommended
that
sufficient
area
be
left
at
to
provide
an
adequate
minimum
flow
rate
y
rear
of
these
units
for
servicing.
through
the
boiler
with
certain
variable
flow
rate
zoned
systems.
This
valve
should
be
AII
models
may
be
installed
on
combustible
opened
only
enough
to
stabilize
the
boiler
flooring.
controls
when
only
the
smallest
zone
is
In
operation.
CONVENTIONAL
INSTALLATION
t
PIPEHANGERS
MAIN
PFLOT
EXPANSION
TANK
MANUAL
SHUTOFF
SliUTOFF__
VALVE
VALVE
AIR
VALVE
TANK
SEPARATOR
I
FITTING
flFUSED)
I
SYSTEM
~
<
H TOFF
SUPPt,y
HELIEFVALVE
'
VALVE
UNE
(PIPEDTOOPENDRAIN)
I;-'
CIRCULATOR
SYSTEM
RETURN
5
THERALTNETER
INSTALL
INACCORDANCE
WITH
LOCAL
CODES
LWE
'DRAIN
VALVE
NATER
OUTLET
*NOTE:DRAIN
VALVEANDGATEVALVE
*GATE
VALVE
SHOWN
BELOW
CIRCULATOR
ARE
FLOWSWITCH
I~II
IP
FORPRESSURE
PURGING,
IF
JI
j
HElGHT(FOLLOW
OESlaED.
BY-PASS
3
'½
THERM0METER
>
1
I'
I
LOCALCODES)
RFAE
LIMITCONTROL
(MANUAL
SESEn
PRESSURE
REQUCING
-5"
I" MINIMuM
COLD
WATER
VALVE
ORAIN
I.'::
SUPPLY
WATER
INLET
FIGURE 1
AOS121
5
Roenbeck
FILED: NEW YORK COUNTY CLERK 02/20/2018 10:20 AM
INDEX NO. 190311/2015
NYSCEF DOC. NO. 337
RECEIVED NYSCEF: 02/20/2018
