Lochinvar WB-051 User Manual
KNIGHT
GAS
T
BTU/HR INPUT
50,000
80,000
105,000
150,000
210,000
FRONT
24”
24”
24”
24”
24”
SIZE2223
3
®
WALL MOUNT BOILER PRODUCT SUMMARY
(WB) 50,000 - 210,000 BTU/HR
WB-051 WB-081 WB-106 WB-151 WB-211
WATER
GALLON CAPACITY 0.6 0.6 0.7 1.3 1.7
HEATING SURFACE (SQ. FT.) 7.3 7.3 9.1 16.4 21.8
WATER CONNECTIONS 1” 1” 1” 1” 1”
DRAIN 3/4” 3/4” 3/4” 3/4” 3/4”
20°F ΔT WATER FLOW (GPM) 5.1 7.5 9.8 14.0 19.6
HEAD LOSS (FT. OF HD.) 11.0 24.0 27.0 20.0 29.0
35°F ΔT WATER FLOW (GPM) 2.9 4.2 5.5 7.9 11.0
HEAD LOSS (FT. OF HD.) 4.1 7.3 9.8 10.0 10.1
MAX. WORKING PRESSURE (PSI) 160 160 160 160 160
# OF RELIEF VALVES 11111
RELIEF VALVE SIZE 3/4” 3/4” 3/4” 3/4” 3/4”
RELIEF VALVE RATING (MBH) 510 510 510 510 510
RELIEF VALVE PRESSURE RATING (PSI) 30 30 30 30 30
INLET CONNECTION 1/2” 1/2” 1/2” 1/2” 1/2”
MAX. INLET PRESSURE, NAT 10.5” w.c. 10.5” w.c. 10.5” w.c. 10.5” w.c. 10.5” w.c.
MIN. INLET PRESSURE, NAT 4.0” w.c. 4.0” w.c. 4.0” w.c. 4.0” w.c. 4.0” w.c.
MAX. INLET PRESSURE, LP 13.0” w.c. 13.0” w.c. 13.0” w.c. 13.0” w.c. 13.0” w.c.
MIN. INLET PRESSURE, LP 8.0” w.c. 8.0” w.c. 8.0” w.c. 8.0” w.c. 8.0” w.c.
BTU/HR INPU
BTU/HR OUTPUT (HIGH FIRE) 45,000 72,000 97,000 135,000 190,000
BTU/HR OUTPUT (LOW FIRE) 9,000 14,400 19,400 27,000 38,000
ELECTRICAL
VOLTAGE/HEATER 120 120 120 120 120
VOLTAGE/CONTROL 24 24 24 24 24
TOTAL AMPS 0.5 0.5 0.5 1.0 1.2
# OF ELECTRICAL CONNECTIONS 11111
DIMENSIONS
HEIGHT 29-1/4” 29-1/4” 29-1/4” 29-1/4” 29-1/4”
WIDTH 18-1/2” 18-1/2” 18-1/2” 18-1/2” 18-1/2”
DEPTH 15-3/4” 15-3/4” 15-3/4” 20-3/4” 25”
SERVICE CLEARANCES
BOTTOM 24” 24” 24” 24” 24”
RIGHT SIDE 0” 0” 0” 0” 0”
LEFT SIDE 24” 24” 24” 24” 24”
TOP 6” 6” 6” 6” 6”
DIRECT VENTING
SIZE 2” 2” 2” 3” 3”
VENT CATEGORY IV IV IV IV IV
VENT MATERIAL PVC PVC PVC PVC PVC
50,000 80,000 105,000 150,000 210,000
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WB-PS-04 (Replaces WB-PS-02 06/08)
Lochinvar Corporation • 300 Maddox Simpson Pkwy • Lebanon, TN 37090 • 615-889-8900 / Fax: 615-547-1000
www.Lochinvar.com
06/10-Printed in U.S.A.
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