Lochinvar KNIGHT KB-500 Specifications

WATER
GALLON CAPACITY
HEATING SURFACE (SQ. FT.)
WATER CONNECTIONS
DRAIN
20°F ΔT WATER FLOW (GPM)
HEAD LOSS (FT. OF HD.)
35°F ΔT WATER FLOW (GPM)
HEAD LOSS (FT. OF HD.)
MAX. WORKING PRESSURE (PSI)
# OF RELIEF VALVES
RELIEF VALVE SIZE
RELIEF VALVE RATING (MBH)
RELIEF VALVE PRESSURE RATING (PSI)
GAS
INLET CONNECTION
MAX. INLET PRESSURE, NAT
MIN. INLET PRESSURE, NAT
MAX. INLET PRESSURE, LP
MIN. INLET PRESSURE, LP
BTU/HR INPUT
BTU/HR OUTPUT (HIGH FIRE)
BTU/HR OUTPUT (LOW FIRE)
ELECTRICAL
VOLTAGE/HEATER
VOLTAGE/CONTROL
TOTAL AMPS
# OF ELECTRICAL CONNECTIONS

DIMENSIONS

HEIGHT
WIDTH
DEPTH

SERVICE CLEARANCES

FRONT
BACK
RIGHT SIDE
LEFT SIDE (PIPING)
TOP

DIRECT VENTING

SIZE
VENT CATEGORY
VENT MATERIAL
Lochinvar Corporation • 300 Maddox Simpson Pkwy • Lebanon, TN 37090 • 615-889-8900 / Fax: 615-547-1000
KBX-PS-03 (Replaces KBX-PS-02 06/08)
®
KNIGHT BOILER PRODUCT SUMMARY
(KB) 399,000 - 800,000 BTU/HR
KB-399 KB-500
3.4 4.2
41.8 50.8
1-1/2" 1-1/2"
3/4" 3/4"
37 47
21 23
21 26
8 10
160 160
1 1
3/4" 3/4"
697 697
50 50
1" 1"
10.5" w.c. 10.5" w.c.
4.0" w.c. 4.0" w.c.
13.0" w.c. 13.0" w.c.
8.0" w.c. 8.0" w.c.
399,000 500,000
372,267 466,500
74,453 93,300
120 120
24 24
1.5 1.7
1 1
42-1/2" 42-1/2"
15-1/2" 15-1/2"
27" 31-1/4"
24" 24"
14" 14"
0" 0"
24" 24"
24" 24"
4" 4"
IV IV
PVC PVC
www.Lochinvar.com
KB-600 KB-700
4.2 5.0
50.8 57.8
2" 2"
3/4" 3/4"
55 65
31 30
32 37
13 11
160 160
1 1
3/4" 3/4"
697 1,352
50 50
1" 1"
10.5" w.c. 10.5" w.c.
4.0" w.c. 4.0" w.c.
13.0" w.c. 13.0" w.c.
8.0" w.c. 8.0" w.c.
600,000 700,000
567,600 660,100
113,520 132,020
120 120
24 24
2.7 2.7
1 1
42-1/2" 42-1/2"
15-1/2" 15-1/2"
36-1/4" 40-1/4"
24" 24"
14" 14"
0" 0"
24" 24"
24" 24"
4" 6"
IV IV
PVC PVC
KB-800
5.7
65.3
2"
3/4"
74
33
42
12
160
1
3/4"
1,352
50
1"
10.5" w.c.
4.0" w.c.
13.0" w.c.
8.0" w.c.
800,000
752,000
150,400
120
24
2.7
1
42-1/2"
15-1/2"
45-1/4"
24"
14"
0"
24"
24"
6"
IV
PVC
06/08-Printed in U.S.A.