APPENDIX G
G-2
5)
THIS I
S A TYPI
CAL INSTALLATIO
N
DRAW
ING.
LOCAL COD
ES AND AUTHO
R
ITI
ES SHOULD BE C
O
NSULTED.
2
) SHELL DRAI
N
VALVE AND C
O
NDENSATE DR
AIN TRAP
SHOULD
BE ARR
A
NGED TO PE
RM
IT TH
E FL
U
IDS TO
DRAIN
HEIG
HT
1
8
'' A
B
OVE F
LOOR.
4)
L
O
CAT
E
W
A
T
E
R INL
E
T
AND
OUT
LET
F
IT
T
INGS (
i.e
. UNION
S, EL
BOW
S
, ET
C.
)
A MIN
IMUM
OF
6
'' F
ROM
BOIL
ER
ELECTRI
C
CONN
ECTIONS
(SERVI
CE SW
IT
CHES,
CONDU
IT BOXES)
SHOU
L
D
L
IKEW
ISE
1)
FO
R ACTUAL SI
ZES
AND LO
CATI
O
N
S O
F
PI
PI
NG
AND O
T
HER
CO
NNECTI
O
NS TO
T
H
E BO
IL
ER,
SEE DI
M
ENSI
O
NAL DRAW
ING
(
AP-
A-
797)
.
3)
ALL
(
*)
IT
EM
S ARE I
NCLUDED
SEPARATELY IN SH
IPM
EN
T
FROM
FACTO
R
Y.
BE 6'' AW
AY FROM
SIDE PANELS.
NO
TES:
SI
NGL
E
UNI
T INSTAL
LA
TI
ON
GAS FIR
E
D BOILER
BENCHMAR
K 2
.0
MI
L.
BTU L
O
W
NOx
AI
R
SEPAR
ATOR
AUTO
M
A
TI
C
AIR
VENT
1-
1/
2
" N
P
T
DRAI
N
CON
N
.
LINE SIZE
BYPASS
BACKFLOW
PREVENTER
D
IAPHRAG
M
TYPE
EXPANSIO
N
TANK
WA
T
E
R
SUPPLY
* CON
D
ENSATE
DRAIN
TRAP
P&
T
RELI
EF VALVE (
T
YP.
)
PR
ESSURE
REDUCI
NG
FILL VALVE
HEATIN
G
SYS
T
E
M
RETU
RN
CHECK VALVE (T
YP.
)
HEATING SYSTEM
SU
PPLY
SYSTEM PU
M
P
AT M
AXI
M
U
M
BTU/HR I
N
PUT,
MAI
N
TAIN M
INI
MUM
NATURAL
GAS PRES
SURE AT
4.0" W
.C.
(F
M
GAS TRAI
N)
/5
.0" W
.C
.(
IRI
GAS TRAI
N)
;
M
AX.
GAS PRESSUR
E =
2.0 PSI
G.
(SEE NO
TE 6)
* 2
" MANUAL
SHUTOFF VALVE
DI
RT TRAP
GAS SUPPLY
FREELY,
BY GRAVI
T
Y
, TO A C
O
NVENI
E
NT FLOOR DRA
IN
. RELIEF VALVE SHO
U
LD
BE PIPED
VERTICALLY TO A
FITTING
S TO PREVENT
INTERFEREN
CE
W
ITH REM
O
VAL OF BOI
L
ER
PANELS
AND CO
VERS. ALL PI
PING A
N
D
NO
RTH
V
A
L
E
, NJ
0
76
47
IN
T
E
RNA
T
IO
N
AL
, IN
C.
A
PPD
.
DW
N
.B
Y
SCA
LE
DAT
E
DAT
E
CZ
NT
S
10
2307
AER
CO
SD
-A
-6
71
TEM
PERATURE GAU
G
E
P&T
PRE
SSURE &
BALANCING
VALVE
ISOLATI
O
N VALVE
UN
ION
Y STRA
INER
LE
G
E
ND
6)
W
H
EN
AVAILABLE GAS PR
ESSURE IS
GREATER THAN
2
.0 PSIG,
A LOCK-
U
P STYLE REGU
L
ATO
R M
U
ST BE
INSTALLED
DOW
N
STREAM
OF THE 2"
M
ANUAL SHUTO
FF VALVE TO
BRI
N
G THE GAS P
R
ESSURE DOW
N
TO 2.
0 PSIG.
REV
C
SEE DIA
G
RAM
1
7)
A GAS REG
U
LATOR I
S M
ANDATOR
Y FOR THE STAT
E O
F
M
ASSACHU
SETTS, REGA
RDLESS OF SUPPLY PRESSU
RE.
* 2" M
A
NUA
L
SH
U
T
O
F
F
VA
LV
E
(T
O
BO
IL
ER
)
Di
ag
ra
m 1
G
A
S S
U
PP
LY
(S
E
E
N
O
T
E
7
)
MA
IN
T
A
IN
A
R
E
G
U
LA
T
E
D
4.
0"
W.
C
. (
N
AT
. G
A
S,
F
M
)/
5.
0"
W.
C
. (
N
AT
. G
A
S,
IR
I)
G
AS
PR
E
SSU
R
E
AT
M
AX
B
T
U/HR
IN
P
U
T
DRIP
TRA
P
Summary of Contents for Benchmark 2.0
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