AERCO SWDW68 U-Tube Double-Wall Heaters w/ECS - Manual (Page 107)

HE-
111 − PIPING CONNECTIONS
Rev B Mar 2013 C-6
/
STEAM TRAP
PRESSURE GAUGE
OVER-TEMP
COMPOUND
TEMPERATURE GAUGE
PRESSURE GAUGE
UNION ORIFICE
THERMAL ELEMENT
DRAIN VALVE
RELIEF VALVE
CONTROL VALVE
CHECK VALVE
STOP VALVE
SOLENOID
UNION
STRAINER
C
T
P
1) FOR ACTUAL SIZES AND LOCATIONS OF PIPING AND OTHER CONNECTIONS TO THE HEATER,
SEE DIMENSIONAL DRAWING
3) HEATERS SHOULD BE PIPED REVERSE RETURN OR BALANCING DEVICES ON THE OUTLETS SHOULD BE
2) PIPING TO THE UPPER HEATER HEAD SHOULD BE PROVIDED WITH UNIONS OR FLANGES WHICH ARE LOCATED
BEYOND THE OUTSIDE DIAMETER OF THE HEAD TO PERMIT REMOVAL OF THE HEAD AND SHELL.
EMPLOYED.
NOTES:
CON
DEN
SATE
OUT
(DRA
IN FR
EELY
BY G
RAVIT
Y)
STEA
M HE
ADER
STORAGE TANK
EXPA
NSIO
N TA
NK
HOU
SE R
ECIR
CULA
TION
FL
O
O
R
FL
O
O
R
DIS
PER
SIO
N
STRATIFIED
HOT WATER
TUB
E
TEMPERATURE
SWITCH
DRAIN
DRAIN
CONNECTION
HOSE
CONNECTION
HOSE
(WHE
N EM
PLOY
ED)
C
/
SD-A-501
INTERNATIONAL, INC.
NORTHVALE, NJ 07647
DOUBLE WALL - MULTIPLE HEATERS
STRATIFIED STORAGE TANK WITH
SWDW-1 OR SWDW-2 STEAM TO WATER
DATE
SCALE
APPD.
NTS
DATE DWN.BY DMM 08/21/01
G
REV.
7) PUMP SHOULD BE CAPABLE OF HEATERS' TOTAL RATED FLOW AT DESIGN TEMPERATURE RISE.
6) DRAIN VALVE SHOULD BE PIPED DIRECTLY TO A FLOOR DRAIN. RELIEF VALVE & OVER-TEMP SOLENOID
5) CONDENSATE RETURN PIPING SHOULD BE ARRANGED TO PERMIT THE CONDENSATE TO DRAIN FREELY ,
4) REDUCERS, ON THE WATER INLET SIDE, SHOULD BE LOCATED ADJACENT TO THE HEATER. EXPANSION
FITTINGS, ON THE WATER INLET SIDE, SHOULD BE LOCATED AS FAR AS POSSIBLE FROM THE HEATER.
VALVE SHOULD BE PIPED VERTICALLY TO A HEIGHT 19" ABOVE THE FLOOR.
BY GRAVITY, FROM THE LOWER HEATER HEAD.
8) MOUNT TEMPERATURE SWITCH 1/3 UP FROM THE BOTTOM OF THE TANK, SWITCH WILL TURN PUMP ON AND OFF.
COLD
WAT
ER IN
LEGEND
AERCO
T
C
/
P
T
/
Figure C-5. Piping Connection for Multiple Heat Exchangers with a Stratified Storage Tank