Watts AERCO Benchmark 2.0, User Manual

Page: 85 / 97

APPENDIX G
G-5
DIRT TRAP
*
CONDENSATE
DRAIN TRAP
1-
1/
2"
NPT
DRAIN CONN
.
BACKFLOW PREVENTER
DIAPHRAGM TYPE EXPANSION TANK
LINE SIZE
BYPASS
SUPPLY
WATER
HEATING SYSTEM SUPPLY
PRESSURE REDUCING FILL VALVE
P
&
T
SYSTEM PUMP
CHECK VALVE (TYP
.)
AUTOMATIC AIR VENT
AIR SEPARATOR
P
&
T
*
MANDATORY GAS
PRESSURE REGULATOR
GAS SUPPLY
HEATING SYSTEM RETURN
*
2"
MANUAL
SHUTOFF VALVE
MAINTAIN A REGULATED 7"
W
.C
. PRESSURE
AT MAXIMUM BTU
/HR
INPUT
P
&
T
RELIEF VALVE
(TYP
.)
P
&
T
P
&
T
5)
THIS IS A TYPICAL INSTALLATION DRAWING
.
LOCAL CODES AND AUTHORITIES SHOULD BE CONSULTED
.
FITTINGS TO PREVENT INTERFERENCE WITH REMOVAL OF BOILER PANELS AND COVERS
.
ALL PIPING AND
ELECTRIC CONNECTIONS
(SERVICE SWITCHES
, CONDUIT BOXES
) SHOULD LIKEWISE BE
6"
AWAY FROM SIDE PANELS
.
4)
LOCATE WATER INLET AND OUTLET FITTINGS
(i.
e.
UNIONS
, ELBOWS
, ETC
.)
A MINIMUM OF
6''
FROM BOILER
CONVENIENT FLOOR DRAIN
.
RELIEF VALVE SHOULD BE PIPED VERTICALLY
1)
FOR ACTUAL SIZES AND LOCATIONS OF PIPING AND OTHER
3)
ALL
(*)
ITEMS ARE INCLUDED SEPARATELY IN SHIPMENT FROM FACTORY
.
CONNECTIONS TO THE BOILER
, SEE DIMENSIONAL DRAWING
(AP
-A
-739
).
TO PERMIT THE FLUIDS TO DRAIN FREELY
, BY GRAVITY
, TO A
TO A HEIGHT
18
'' ABOVE FLOOR
.
2)
SHELL DRAIN VALVE AND CONDENSATE DRAIN TRAP SHOULD BE ARRANGED
NOTES
:
DATE DATE
AERCO
BENCHMARK
2
MIL
. BTU GAS FIRED
MULTIPLE BOILERS WITH ZERO SIDE
CLEARANCE INSTALLATION
APPD
.
DWN
.BY
SCALE
PDR
NTS
REV
.
NORTHVALE
, NJ
07647
INTERNATIONAL
, INC
.
072701
SD
-A
-593
D
TEMPERATURE GAUGE
P
&
T
PRESSURE
&
ISOLATION VALVE UNION Y STRAINER
LEGEND
BALANCING VALVE
PROPANE SUPPLY FOR DUAL FUEL OPTION
PROPANE
SUPPLY FOR
DUAL FUEL
OPTION
PROPANE
SUPPLY FOR
DUAL FUEL
OPTION
(NOTE
6)
GAS
/PROPANE
RATED CHECK VALVE (SUPPLIED BY OTHERS
)
MANUFACTURERS SUCH AS ECLIPSE CAN BE CONSULTED FOR GAS
/PROPANE RATED CHECK VAVLES
.
CHECK VALVES MUST BE SIZED FOR
2,
000
CFH
(NATURAL GAS
) AND
800
CFH
(PROPANE
).
6)
GAS
/PROPANE RATED CHECK VALVES REQUIRED ONLY FOR DUAL FUEL INSTALLATION
.