Lochinvar WB-050 User Manual

KNIGHT® WALL MOUNT BOILER PRODUCT SUMMARY

(WB) 50,000 - 210,000 BTU/HR

WB-050 WB-080 WB-105 WB-150 WB-210

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 1 1 1 1 1
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

GAS

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 INPUT 50,000 80,000 105,000 150,000 210,000
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 1 1 1 1 1

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

FRONT 24” 24” 24” 24” 24”
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

Lochinvar Corporation • 300 Maddox Simpson Pkwy • Lebanon, TN 37090 • 615-889-8900 / Fax: [phone]

WB-PS-03 (Replaces WB-PS-02 06/08)

www.Lochinvar.com

06/08-Printed in U.S.A.