He- 111 − installation – AERCO SWDW68 U-Tube Double-Wall Heaters w/ECS User Manual
Page 14
HE-
111 − INSTALLATION
Rev B Mar 2013
2-4
COMPONENTS
WIRE TO
AERCO
92.70
(235.46)
25.04
(63.60)
10.11
(25.68)
5.75
(14.60)
COMPOUND
PRESSURE
GAUGE (S/W)
STEAM INLET
CXT-E
VALVE
VACUUM BREAKER
(STEAM TO WATER)
39.87
(101.27)
3/4" PLUGGED
DRAIN
1.50" (3.81) THICK
INSULATION
TEMPERATURE
CONTROLLER
FLOAT &
THERMOSTATIC
STEAM TRAP
(BY OTHERS)
10.00 (25.40)
1.00 (2.54)
1/2" (1.27)
WATER SOLENOID
P&T RELIEF VALVE
1/2" NPT VALVE
TRAP CONNECTION
(STEAM TO WATER ONLY)
24.00
(60.96)
21.00
(53.34)
19.50
(49.53)
16.50
(41.91)
OUTLET TEMP.
SENSOR
3.50
(8.89)
3.50
(8.89)
FOUR .75
(1.91)Ø HOLES
87.56
(222.40)
27.16
(68.99)
16.50
(41.91)
36.00
(91.44)
115 VAC, 2A, 60 HZ
ELECTRICAL
POWER SUPPLY
REQUIRED
14.00
(35.56)
3" NPT
COLD WATER
INLET
3" NPT
HOT WATER
OUTLET
DOUBLE WALL TUBE
LEAK DETECTION PORT
4" 150# FLG.
CONDENSATE
OUTLET
RECIRC
PUMP
Figure 2-3. AERCO Model DW-68 Heat Exchanger Dimensions