Submittal Sheet

Keystone Water Heater Submittal
3
Size
Flow
gpm [lpm]
H/L
feet [m]
Temp. Rise
ºF [ºC]
KW 199 25 [95] 28 [8.5 ] 15 [8]
KW 285 36 [137] 33 [10.1] 15 [8]
KW 399 50 [189] 35 [10.7] 15 [8]
KW 500 63 [239] 28 [8.5] 15 [8]
KW 600 60 [227] 24 [7.3] 19 [11]
KW 750 68 [257] 35 [10.7] 21 [12]
KW 850 68 [257] 26 [7.9] 24 [13]
Water Flow Requirements
Accessories for Field Mounting
Water flow switch (199 - 285 only)
Low water cutoff
High & low gas pressure switches
Additional auto reset high limit
Required Water Temperature Rise GPH delivered [L/h delivered]
Size
40ºF [22ºC] 50ºF [28ºC] 60ºF [33Cº] 70ºF [39ºC] 80ºF [44Cº] 90ºF [50ºC] 100ºF [56ºC] 120ºF [67ºC] 140ºF [78ºC]
Flow
gph [L/h]
Flow
gph [L/h]
Flow
gph [L/h]
Flow
gph [L/h]
Flow
gph [L/h]
Flow
gph [L/h]
Flow
gph [L/h]
Flow
gph [L/h]
Flow
gph [L/h]
KW 199 579 [2190] 463 [1752] 386 [1460] 331 [1251] 290 [1095] 257 [973] 232 [876] 193 [730] 166 [626]
KW 285 818 [3091] 654 [2473] 545 [2061] 467 [1766] 409 [1545] 363 [1374] 327 [1236] 273 [1030] 234 [883]
KW 399 1153 [4359] 923 [3487] 769 [2906] 659 [2491] 577 [2181] 513 [1937] 461 [1744] 384 [1453] 329 [1245]
KW 500 1451 [5485] 1161 [4388] 967 [3657] 829 [3134] 726 [2743] 645 [2438] 580 [2194] 484 [1828] 415 [1567]
KW 600 1729 [6536] 1383 [5288] 1152 [4355] 988 [3735] 864 [3266] 768 [2903] 691 [2612] 576 [2177] 494 [1867]
KW 750 2170 [8203] 1736 [6562] 1447 [5470] 1240 [4687] 1085 [4101] 964 [3644] 868 [3281] 723 [2733] 620 [2344]
KW 850 2434 [9201] 1947 [7360] 1622 [6131] 1391 [5258] 1217 [4600] 1082 [4090] 973 [3678] 811 [3066] 695 [2627]
Recovery Data
Note: Maximum allowed Water
Hardness of 10 grains per gallon.