HTP Mod Con 300 VWH, Installation And Maintenance Instructions Manual

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8
LP- 276 REV. 9.4.14
VWH Recovery Ratings with Storage Tanks and 40
o
F Inlet Temperature
Mod Con 300 VWH
Outlet
Temperature
Recovery Gallons Per
Hour
First Hour Rating With 80
Gallon
First Hour Rating With 119
Gallon
First Hour Rating With 175
Gallon
80
o
846 906 935 971
90
o
677 737 766 802
100
o
564 624 653 689
110
o
483 543 572 608
120
o
423 483 512 548
130
o
376 436 465 501
140
o
338 398 427 463
150
o
308 368 397 433
160
o
282 342 371 407
170
o
260 320 349 385
180
o
242 302 331 367
Table 1 – Mod Con 300 VWH Recovery Ratings with Storage Tanks and 40
o
F Inlet Temperature
Mod Con 500 VWH
Outlet
Temperature
Recovery Gallons Per
Hour
First Hour Rating With 80
Gallon
First Hour Rating With 119
Gallon
First Hour Rating With 175
Gallon
80
o
1,410 1,470 1,499 1,535
90
o
1,128 1,188 1,217 1,253
100
o
940 1,000 1,029 1,065
110
o
806 866 895 931
120
o
705 765 794 830
130
o
627 687 716 752
140
o
564 624 653 689
150
o
513 573 602 638
160
o
470 530 559 595
170
o
434 494 523 559
180
o
403 463 492 528
Table 2 – Mod Con 500 VWH Recovery Ratings with Storage Tanks and 40
o
F Inlet Temperature
Mod Con 850 VWH
Outlet
Temperature
Recovery Gallons Per
Hour
First Hour Rating With 80
Gallon
First Hour Rating With 119
Gallon
First Hour Rating With 175
Gallon
80
o
2,397 2,457 2,486 2,522
90
o
1,918 1,978 2,007 2,043
100
o
1,598 1,658 1,687 1,723
110
o
1,370 1,430 1,459 1,495
120
o
1,199 1,259 1,288 1,324
130
o
1,065 1,125 1,154 1,190
140
o
959 1,019 1,048 1,084
150
o
872 932 961 997
160
o
799 859 888 924
170
o
738 798 827 863
180
o
685 745 774 810
Table 3 – Mod Con 850 VWH Recovery Ratings with Storage Tanks and 40
o
F Inlet Temperature
Min Tank Size (gal.) = Required Flow (GPM) x 10
Mixing Factor
→
M
f
= VWH Outlet Temp – 40
70
First Hour Rating =
[
Total VWH Output x VWH Effi .75 x Total Storage
]
x M
f
(VWH Outlet Temp – 40) x 8.31
Example:
2 MOD CON VWH 500
→
Total Output = 1,000,000 BTU @ 94% Efficiency
VWH Outlet Temp
→
140
o
F
2 Storage Tanks (80 Gallons Each)
→
Total Storage = 160 Gallons