Part 2: Before You Start; Modcon Recovery Ratings; Modcon Vwh Recovery Ratings With Storage Tanks - Heat Transfer MODCON VWH 300 LP Installation & Maintenance

GAS-FIRED HOT WATER SUPPLY BOILER

PART 2: BEFORE YOU START

MODCON RECOVERY RATINGS

20Δt 25Δt 30Δt 35Δt 40Δt 45Δt 50Δt 55Δt 60Δt 65Δt 70Δt 75Δt 80Δt 85Δt 90Δt 95Δt 100Δt 105Δt 110Δt 115Δt 120Δt 125Δt 130Δt 135Δt 140Δt
Model RECOVERY RATE IN GALLONS PER HOUR BASED ON TEMPERATURE RISE BETWEEN INLET TEMPERATURE AND OUTLET TEMPERATURE
ModCon 300 1,692 1,354 1,128 967
ModCon 500 2,820 2,256 1,880 1,611 1,410 1,253 1,128 1,025 940
ModCon 850 4,794 3,835 3,196 2,739 2,397 2,131 1,918 1,743 1,598 1,475 1,370 1,278 1,199 1,128 1,065 1,009 959

MODCON VWH RECOVERY RATINGS WITH STORAGE TANKS

Inlet Outlet
Temperature Temperature
40°
40°
40°
40°
40°
40°
40°
40°
40°
40°
40°
Inlet Outlet
Temperature Temperature
40°
40°
40°
40°
40°
40°
40°
40°
40°
40°
40°
Inlet Outlet
Temperature Temperature
40°
40°
40°
40°
40°
40°
40°
40°
40°
40°
40°
WATER FLOW AT VARIOUS TEMPERATURE RISE
846 752 677 615 564 521
868
ModCon 300 VWH
Recovery Gallons
Per Hour
80° 846
90° 677
100° 564
110° 483
120° 423
130° 376
140° 338
150° 308
160° 282
170° 260
180° 242
ModCon 500 VWH
Recovery Gallons
Per Hour
80° 1,410
90° 1,128
100° 940
110° 806
120° 705
130° 627
140° 564
150° 513
160° 470
170° 434
180° 403
ModCon 850 VWH
Recovery Gallons
Per Hour
80° 2,397
90° 1,918
100° 1,598
110° 1,370
120° 1,199
130° 1,065
140° 959
150° 872
160° 799
170° 738
180° 685
483 451 423 398 376 356 338
806 752 705 664 627 596 564
First Hour Rating First Hour Rating
With 80 Gallon With 119 Gallon
906
737
624
543
483
436
398
368
342
320
302
First Hour Rating First Hour Rating
With 80 Gallon With 119 Gallon
1,470
1,188
1,000
866
765
687
624
573
530
494
463
First Hour Rating First Hour Rating
With 80 Gallon With 119 Gallon
2,457
1,978
1,658
1,430
1,259
1,125
1,019
932
859
798
745
Boiler Manual
322 308 294 282 271 260
537 513 490 470 451 434
913 872 834 799 767 738
First Hour Rating
With 175 Gallon
935 971
766 802
653 689
572 608
512 548
465 501
427 463
397 433
371 407
349 385
331 367
First Hour Rating
With 175 Gallon
1,499 1,535
1,217 1,253
1,029 1,065
895 931
794 830
716 752
653 689
602 638
559 595
523 559
492 528
First Hour Rating
With 175 Gallon
2,486 2,522
2,007 2,043
1,687 1,723
1,459 1,495
1,288 1,324
1,154 1,190
1,048 1,084
961 997
888 924
827 863
774 810
251 242
418 403
710 685
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