Lochinvar EW-150 User Manual
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EFFICIENCY+® WATER HEATER PRODUCT SUMMARY
(EW) 150,000 - 300,000 BTU/HR
EW-150 EW-200 EW-250 EW-300
WATER
GALLON CAPACITY 1.4 1.5 1.5 1.6
HEATING SURFACE (SQ. FT.) 17.9 24.0 29.8 35.9
WATER CONNECTIONS 2” 2” 2” 2”
DRAIN 3/4” 3/4” 3/4” 3/4”
WATER FLOW RATE (GPM) 55 55 55 55
HEAD LOSS (FT. OF HD.) 3.7 3.8 3.9 4.0
MAX. WORKING PRESSURE (PSI) 160 160 160 160
MAX. WATER HARDNESS (GRAINS) 25 25 25 25
GPH @ 70°F RISE 221 294 368 442
GPH @ 100°F RISE 155 206 258 309
GPH @ 140°F RISE 110 147 184 221
# OF RELIEF VALVES 1111
RELIEF VALVE SIZE 3/4” 3/4” 3/4” 3/4”
RELIEF VALVE RATING (MBH) 500 500 500 500
RELIEF VALVE PRESSURE RATING (PSI) 150 150 150 150
RELIEF VALVE TEMPERATURE RATING (°F) 210 210 210 210
GAS
INLET CONNECTION 3/4” 3/4” 3/4” 3/4”
MAX. INLET PRESSURE, NA
MIN. INLET PRESSURE, NA
MANIFOLD PRESSURE, NA
MAX. INLET PRESSURE, L
MIN. INLET PRESSURE, L
MANIFOLD PRESSURE, LP 4.6” w.c. 4.6” w.c. 4.6” w.c. 4.6” w.c.
HR INPU
BTU
ELECTRICAL
VOLTAGE/HEATER 120 120 120 120
VOLTAGE/PUMP 120 120 120 120
VOLTAGE/CONTROL 24 24 24 24
OTAL AMPS W/PUMP 11.0 11.0 11.0 11.0
# OF ELECTRICAL CONNECTIONS 1111
DIMENSIONS
HEIGH
WIDTH (INCLUDES PUMP) 38-1/4” 42-1/4” 46” 49-3/4”
DEPTH 23-3
SERVICE CLEARANCES
FRON
BACK 1” 1” 1” 1”
RIGHT SIDE 1” 1” 1” 1”
LEFT SIDE (PIPING) 24” 24” 24” 24”
OP 3” 3” 3” 3”
VENTING
SIZE 5” 5” 6” 6”
VENT CATEGOR
VENT MATERIA
MAXIMUM DRAF
MINIMUM DRAF
DIRECT VENTING
SIZE 4” 4” 5” 5”
VENT CATEGOR
VENT MATERIA
10.5” w.c. 10.5” w.c. 10.5” w.c. 10.5” w.c.
4.0” w.c. 4.0” w.c. 4.0” w.c. 4.0” w.c.
1.8” w.c. 1.8” w.c. 1.8” w.c. 1.8” w.c.
13.0” w.c. 13.0” w.c. 13.0” w.c. 13.0” w.c.
8.0” w.c. 8.0” w.c. 8.0” w.c. 8.0” w.c.
150,000 199,999 250,000 300,000
28” 28” 28” 28”
4” 23-3/4” 23-3/4” 23-3/4”
24” 24” 24” 24”
IIII
B-VEN
-0.05” w.c. -0.05” w.c. -0.05” w.c. -0.05” w.c.
-0.02” w.c. -0.02” w.c. -0.02” w.c. -0.02” w.c.
IV IV IV IV
AL29-4C AL29-4C AL29-4C AL29-4C
B-VEN
B-VEN
B-VEN
Lochinvar Corporation • 300 Maddox Simpson Pkwy • Lebanon, TN 37090 • 615-889-8900 / Fax: 615-547-1000
EW-PS-06 (Replaces EW-PS-05 4/07)
www.Lochinvar.com
11/07-Printed in U.S.A.
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