Lochinvar KB-700 dimensions Knight Boiler Product Summary, KB 399,000 - 800,000 BTU/HR, KB-399

KNIGHT® BOILER PRODUCT SUMMARY

(KB) 399,000 - 800,000 BTU/HR

	KB-399		KB-500	KB-600	KB-700	KB-800
WATER
GALLON CAPACITY	3.4		4.2	4.2	5.0	5.7
HEATING SURFACE (SQ. FT.)	41.8		50.8	50.8	57.8	65.3
WATER CONNECTIONS	1-1/2”		1-1/2”	2"	2"	2"
DRAIN	3/4”		3/4”	3/4"	3/4"	3/4"
20°F ΔT WATER FLOW (GPM)	37		47	55	65	74
HEAD LOSS (FT. OF HD.)	21		23	31	30	33
35°F ΔT WATER FLOW (GPM)	21		26	32	37	42
HEAD LOSS (FT. OF HD.)	8		10	13	11	12
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)	697		697	697	1,352	1,352
RELIEF VALVE PRESSURE RATING (PSI)	50		50	50	50	50
GAS
INLET CONNECTION	1”		1”	1"	1"	1"
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	399,000		500,000	600,000	700,000	800,000
BTU/HR OUTPUT (HIGH FIRE)	372,267		466,500	567,600	660,100	752,000
BTU/HR OUTPUT (LOW FIRE)	74,453		93,300	113,520	132,020	150,400
ELECTRICAL
VOLTAGE/HEATER	120		120	120	120	120
VOLTAGE/CONTROL	24		24	24	24	24
TOTAL AMPS	1.5		1.7	2.7	2.7	2.7
# OF ELECTRICAL CONNECTIONS	1		1	1	1	1
DIMENSIONS
HEIGHT	42-1/2”		42-1/2”	42-1/2"	42-1/2”	42-1/2”
WIDTH	15-1/2”		15-1/2”	15-1/2"	15-1/2"	15-1/2"
DEPTH	27”		31-1/4”	36-1/4"	40-1/4"	45-1/4"
SERVICE CLEARANCES
FRONT	24”		24”	24”	24”	24”
BACK	14”		14”	14”	14”	14”
RIGHT SIDE	0”		0”	0”	0”	0”
LEFT SIDE (PIPING)	24”		24”	24”	24”	24”
TOP	24”		24”	24”	24”	24”
DIRECT VENTING
SIZE	4”		4”	4"	6"	6"
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: 615-547-1000
		www.Lochinvar.com
KBX-PS-03(Replaces KBX-PS-02 06/08)						06/08-Printed in U.S.A.