Pentair 5001825 User manual

MegaTherm®
High Performance Gas Fired
Commercial Pool Heater
Standard Features
•Reliable operation on natural or propane gas.
•Electronic ignition.
•Built-in draft diverter (indoor models) simplifies installation.
•Flow switch standard on all models.
•Integral pump assures proper water flow (Models 500–1825).
•Automatic gas valve.
•Stainless steel burners, with slide-out burner tray for easy
maintenance and long life (Models 500–1825).
•Galvanized steel jacket with acrylic finish for strength and durability.
•High temperature refractory firebox liner to 2000° F for
greater efficiency.
•Easy-to-service header flanges.
•Corrosion-resistant glass-lined or bronze headers.
•Integral lined copper tube heat exchanger for higher efficiency.
•Electronic temperature control for accuracy. (Models 500–1825;
model configuration varies slightly by size.)
•One-year limited warranty. See warranty for details.
Powerful, efficient, and reliable, MegaTherm®pool
heaters are designed for commercial, institutional and large
residential pools where economical performance and rapid
heat-up are required. Available in indoor and outdoor
models, with twenty-two sizes from 500,000 to 5,000,000
BTU/h to precisely match any heating requirement.
MegaTherm is designed to deliver efficiencies as high as 82%.
Integral finned copper tubes are rolled directly into the headers, and
conformal heat exchanger baffles and an eight-fins-per-inch tubing
configuration maximize combustion heat extraction. We’ve also
designed MegaTherm to be simple to service. Heat exchanger
header covers are field-removable for complete inspection of tubing
and header passages, and the heat exchanger is replaceable
without disassembly of the burners or combustion chamber.
MegaTherm is design certified to the ANSI®Z21.56 Standard for
Gas-Fired Pool Heaters. (Outdoor 500–1825 units are certified for
use without the addition of a draft diverter or external vent. Indoor
units incorporate a built-in draft diverter and require only vent
piping.) Salt water models (500–1825) are available with cupronickel
alloy heat exchanger tubes and bronze headers and header covers.

MegaTherm®
High Performance Gas Fired Commercial Pool Heaters
DIMENSIONAL AND SIZING DATA
For Indoor Pools Model I
1. Calculate the surface area of the pool in square feet.
2. Refer to the selection chart for either an indoor or outdoor heater.
3. Find the closest square footage in the 10° F (6° C) Temperature Difference column, and the heater models which correspond to it. For normal conditions,
Pentair recommends using the 10° F Temperature Difference columns; this will provide a temperature increase of approximately 6° F per 24 hour period.
10° F 6° C 15° F 8° C 20° F 11° C 25° F 14° C 30° F 17° C 35° F 19° C 40° F 22° C 45° F 25° C 50° F 28° C
Model Surface Area of Pools (Sq. Ft.)
500 I 3900 362 2600 242 1950 181 1560 145 1300 121 1115 104 975 91 870 81 780 72
600 I 4680 435 3120 290 2340 217 1870 174 1560 145 1340 124 1170 109 1040 97 935 87
715 I 5580 518 3720 346 2790 259 2230 207 1860 173 1595 148 1395 130 1240 115 1115 104
850 I 6630 616 4420 411 3315 308 2650 246 2210 205 1895 176 1660 154 1475 137 1325 123
1010 I 7880 732 5250 488 3940 366 3150 293 2625 244 2259 210 1970 183 1750 163 1575 146
1200 I 9360 870 6240 580 4680 435 3745 348 3120 290 2675 249 2340 217 2080 193 1870 174
1430 I 11155 1036 7435 691 5580 518 4460 414 3720 346 3190 296 2790 259 2480 230 2230 207
1670 I 13025 1210 8685 807 6515 605 5210 484 4340 403 3720 346 3260 303 2895 269 2605 242
1825 I 14235 1322 9490 882 7120 661 5695 528 4745 441 4070 378 3560 331 3165 294 2850 265
2000 I 16400 1524 10935 1016 8200 819 6560 609 5465 508 4685 435 4100 381 3645 339 3280 305
2450 I 20090 1866 13395 1244 10045 933 8035 746 6695 622 5740 533 5025 467 4465 415 4020 373
3050 I 25010 2323 16675 1549 12505 1162 10000 929 8335 744 7145 664 6255 581 5560 517 5000 465
3500 I 28700 2666 19135 1778 14350 1333 11480 1066 9565 889 8200 764 7175 667 6380 593 5740 533
4050 I 33210 3085 22140 2057 16605 1543 13285 1234 11070 1028 9490 882 8300 771 7380 686 6640 617
4500 I 36900 3428 24600 2285 18450 1714 14760 1371 12300 1143 10545 980 9225 857 8200 762 7380 686
5000 I 41000 3809 27335 2539 20500 1904 16400 1524 13665 1269 11715 1088 10250 952 9110 846 8200 762
Temperature Difference
Indoor
Sizes 500 –1825
Indoor
Sizes 2000 – 5000
Dimensional Data
Indoor Input1Output1 - inches NPT - inches Dimensions2- inches cm Weight3
Size MBTU/h kw MBTU/h kw Nat LP NPT A B C V lbs. kg
500 I 500 147 405 119 1 3⁄42
1⁄2333⁄486 451⁄4115 233⁄460 10 25 808 367
600 I 600 176 486 143 1 3⁄42
1⁄2383⁄498 501⁄4128 223⁄458 12 30 819 372
715 I 715 210 579 170 1 3⁄42
1⁄2441⁄4112 553⁄4142 223⁄458 12 30 873 396
850 I 850 249 689 202 1 3⁄42
1⁄2503⁄4129 621⁄4158 213⁄455 14 36 945 429
1010 I 1010 296 818 240 1
1⁄41 21⁄258 147 691⁄2177 203⁄453 16 41 1041 473
1200 I 1200 352 972 285 1
1⁄41 21⁄2661⁄4168 773⁄4197 203⁄453 16 41 1199 544
1430 I 1430 419 1158 339 1
1⁄41 1⁄42 1⁄276 193 871⁄2222 193⁄450 18 46 1280 581
1670 I 1670 489 1353 396 1
1⁄21 1⁄42 1⁄2851⁄2217 97 246 193⁄450 18 46 1445 656
1825 I 1825 535 1478 433 1
1⁄21 1⁄42 1⁄2921⁄2235 1033⁄4264 193⁄450 18 46 1570 713
2000 I 2000 586 1639 480 1
1⁄21 1⁄44 551⁄2141 73 185 241⁄262 22 56 1950 885
2450 I 2450 718 2009 589 1
1⁄21 1⁄24 651⁄2166 83 211 241⁄262 24 61 2100 913
3050 I 3050 894 2501 733 2 11⁄24 78 198 951⁄2243 241⁄262 26 66 2250 1022
3500 I 3500 1025 2870 841 2 11⁄24 88 224 1051⁄2268 241⁄262 28 71 2510 1140
4050 I 4050 1186 3321 973 2 2 4 1001⁄2255 118 300 241⁄262 30 76 2750 1249
4500 I 4500 1318 3690 1081 2
1⁄22 4 1101⁄2281 128 325 241⁄262 32 81 2900 1317
5000 I 5000 1465 4100 1201 2
1⁄22 4 123 312 1401⁄2357 241⁄262 34 86 3200 1453
Gas Conn.Size2
Water Conn.Size2
NOTES: 1. Input and output must be derated 4% per 1000 feet above sea level when installed above 2000 feet altitude.
2. Dimensions are nominal.
3. Integral pump included on sizes 500-1825.
Shipping

10° F 6° C 15° F 8° C 20° F 11° C 25° F 14° C 30° F 17° C 35° F 19° C 40° F 22° C 45° F 25° C 50° F 28° C
Model Surface Area of Pools (Sq. Ft.)
500 E 4000 372 2665 248 2000 186 1600 149 1330 124 1140 106 1000 93 885 82 800 74
600 E 4800 446 3200 297 2400 223 1920 178 1600 149 1370 127 1200 111 1065 99 960 89
715 E 5720 531 3810 354 2860 266 2285 212 1905 177 1630 151 1430 133 1270 118 1140 106
850 E 6800 632 4530 421 3400 316 2720 253 2265 210 1940 180 1700 158 1510 140 1360 126
1010 E 8080 751 5385 500 4040 375 3230 300 2690 250 2305 214 2020 188 1795 167 1615 150
1200 E 9600 892 6400 595 4800 446 3840 357 3200 297 2740 255 2400 223 2130 198 1920 178
1430 E 11440 1063 7625 708 5720 531 4575 425 3810 354 3265 303 2860 266 2540 236 2285 212
1670 E 13360 1241 8905 827 6680 621 5344 496 4450 413 3815 354 3340 310 2965 275 2670 248
1825 E 14600 1356 9730 904 7300 678 5840 543 4865 452 4170 387 3650 339 3240 301 2920 271
2200 E 17861 1659 11907 1106 8930 830 7144 664 5954 553 5103 474 4465 415 3969 369 3572 332
2800 E 22235 2066 14823 1377 11117 1033 8894 826 7412 689 6353 590 5559 516 4941 459 4447 413
3200 E 25515 2370 17010 1580 12758 1185 10206 948 8505 790 7290 677 6379 593 5670 527 5103 474
3600 E 29525 2743 19683 1829 14762 1371 11810 1097 9842 914 8436 784 7381 686 6561 610 5905 549
4000 E 32805 3048 21870 2032 16403 1524 13122 1219 10935 1016 9373 871 8201 762 7290 677 6561 610
4500 E 36450 3386 24300 2257 18225 1693 14580 1354 12150 1129 10414 967 9113 847 8100 752 7290 677
Temperature Difference
Dimensional Data
Outdoor
Sizes 500 –1825
Outdoor
Sizes 2000 – 5000
For Outdoor Pools Model E
1. Determine the difference between the desired pool temperature and the average air temperature during the coldest month in which the
pool will be used (referred to in the chart below as “Temperature Difference”).
2. Calculate the surface area of the pool.
3. Refer to the selection chart. Listed are the maximum pool surface areas for each heater model with typical temperature differences.
Make the appropriate selection from the chart.
Outdoor Input1Output1 -
inches NPT - inches Dimensions2- inches cm
Size MBTU/h kw MBTU/h kw Nat LP NPT A B C D E F V
500 E 500 147 410 120 1 3⁄42
1⁄2333⁄486 451⁄4115 — — — — — — — — — —
600 E 600 176 492 144 1 3⁄42
1⁄2383⁄498 501⁄4128 — — — — — — — — — —
715 E 715 210 586 172 1 3⁄42
1⁄2441⁄4112 551⁄4142 — — — — — — — — — —
850 E 850 249 697 204 1 3⁄42
1⁄2503⁄4129 621⁄4158 — — — — — — — — — —
1010 E 1010 296 828 243 1
1⁄41 21⁄258 147 691⁄2177 — — — — — — — — — —
1200 E 1200 352 984 288 1
1⁄41 21⁄2661⁄4168 773⁄4197 — — — — — — — — — —
1430 E 1430 419 1173 344 1
1⁄41 1⁄42 1⁄276 193 871⁄2222 — — — — — — — — — —
1670 E 1670 489 1370 401 1
1⁄21 1⁄42 1⁄2851⁄2217 97 246 — — — — — — — — — —
1825 E 1825 535 1497 439 1
1⁄21 1⁄42 1⁄2921⁄2235 1033⁄4264 — — — — — — — — — —
2200 E 2205 646 1786 523 1
1⁄21 1⁄44 651⁄2166 83 211 16 41 281⁄472 15 38 24 61 18 46
2800 E 2745 804 2223 651 1
1⁄21 1⁄24 78 198 951⁄2243 20 51 281⁄472 15 38 24 61 18 46
3200 E 3150 923 2552 748 2 11⁄24 88 224 1051⁄2268 23 58 311⁄280 161⁄242 36 91 20 51
3600 E 3645 1068 2952 865 2 2 4 1001⁄2255 118 300 29 74 311⁄280 161⁄242 36 91 20 51
4000 E 4050 1187 3281 961 2
1⁄22 4 1101⁄2281 128 325 301⁄277 341⁄288 18 46 36 91 22 56
4500 E 4500 1319 3645 1068 2
1⁄22 4 123 312 1401⁄2357 34 86 373⁄496 191⁄250 36 91 24 61
Gas Conn.Size2Water Conn.Size
2
Outdoor Shipping Weight3
Size lbs. kg
500 E 500 147
600 E 600 176
715 E 715 210
850 E 850 249
1010 E 1010 296
1200 E 1200 352
1430 E 1430 419
1670 E 1670 489
1825 E 1825 535
2200 E 2205 646
2800 E 2745 804
3200 E 3150 923
3600 E 3645 1068
4000 E 4050 1187
4500 E 4500 1319
NOTES: 1. Input and output must be derated 4% per 1000 feet above sea level when installed above 2000 feet altitude.
2. Dimensions are nominal.
3. Integral pump included on sizes 500–1825.
NOTES: 1. For high altitude pools, reduce the surface area figures shown in the charts by 4% for each 1000 ft. above sea level. (No derating is necessary up to 2000 ft. above sea level.)
2. Pentair maintains a policy of continuous improvements and therefore reserves the right to change specifications without notice.
3. Sizing for outdoor pools is based on 31⁄2mph average wind.

High Performance Gas Fired Commercial Pool Heaters
6/08 Part #P1-355
The Perfect Combination of Accurate Control,
Efficiency, and Long Life
MegaTherm
®
is packed with performance features designed specifically
for the commercial, institutional, and large residential pool market.
The primary/secondary pump and control (Models 500–1825) feature
an electronic controller with a solid state sensor and adjustable
differential for accurate temperature control. Inlet water is preheated
to eliminate condensation, and a constant velocity in the heat
exchanger increases tube life. The diverter valve has been eliminated
in the pool circulation line, resulting in lower installation and operating
costs. And, inlet and outlet thermometers with ±1% accuracy allow
precise set-up and temperature rise monitoring.
Additional Design Advantages Include:
•Control system includes automatic temperature control, temperature
limit, gas pressure regulator, redundant electric gas valve, water
flow sensing, electronic flame safety supervision and manual gas
shut-off valve. The standard control system operates on 24 VAC
with a 120 VAC power supply. Standard units are intermittent
(spark) ignition.
•Working pressure of 160 psi complies with Section IV of the ASME®
Boiler and Pressure Vessel Code. Units are registered with the
National Board of Boiler and Pressure Vessel Inspectors.
•
Pressure relief valve is ASME
®
rated and is selected to provide
discharge capacity in excess of unit heating input.
• Combustion chamber is cast refractory with a 2000° F (1093° C)
working temperature.
•Burners are atmospheric type constructed of AISI alloy 430 (models
500–1825) or AISI 439 (models 2000–5000) stainless steel.
•Chassis and jacket parts are of galvanized steel meeting ASTM®
Standard for G90 coating. Exterior is finished with acrylic paint,
thermoset at 325° F (163° C).
•
Integral flow control valve on models 2000–5000 accepts flows
up to 300 GPM.
©2008 Pentair Water Pool and Spa, Inc. All rights reserved.
1620 Hawkins Avenue
Sanford, NC 27330
Phone: [phone] Fax: [phone]
www.pentairpool.com
MegaTherm®
Part Numbers Descriptions
Cupronickel alloy heat exchanger models are available. Contact the factory for part numbers.
MT0500IN09C1PC Indoor, Spark Ignition, On-Off, Pump Mtd., Cl-Cu HX, Std. Unit, Nat. Gas
MT0600IN09C1PC Indoor, Spark Ignition, On-Off, Pump Mtd., Cl-Cu HX, Std. Unit, Nat. Gas
MT0715IN09C1PC Indoor, Spark Ignition, On-Off, Pump Mtd., Cl-Cu HX, Std. Unit, Nat. Gas
MT0850IN09C1PC Indoor, Spark Ignition, On-Off, Pump Mtd., Cl-Cu HX, Std. Unit, Nat. Gas
MT0999IN09C1PC Indoor, Spark Ignition, On-Off, Pump Mtd., Cl-Cu HX, Std. Unit, Nat. Gas
MT1010IN09C1PC Indoor, Spark Ignition, On-Off, Pump Mtd., Cl-Cu HX, Std. Unit, Nat. Gas
MT1200IN09C1PC Indoor, Spark Ignition, On-Off, Pump Mtd., Cl-Cu HX, Std. Unit, Nat. Gas
MT1430IN09C1PC Indoor, Spark Ignition, On-Off, Pump Mtd., Cl-Cu HX, Std. Unit, Nat. Gas
MT1670IN09CBPC Indoor, Spark Ignition, On-Off, Pump Mtd., Cl-Cu HX, Std. Unit, Nat. Gas
MT1825N09CBPC Indoor, Spark Ignition, On-Off, Pump Mtd., Cl-Cu HX, Std. Unit, Nat. Gas
MT2000IN18CCAC Indoor, Spark Ignition, Less Pump, Cl-Cu HX, Std. Unit, Nat. Gas
MT2450IN18CCAC Indoor, Spark Ignition, Less Pump, Cl-Cu HX, Std. Unit, Nat. Gas
MT3050IN18CCAC Indoor, Spark Ignition, Less Pump, Cl-Cu HX, Std. Unit, Nat. Gas
MT3500IN18CCAC Indoor, Spark Ignition, Less Pump, Cl-Cu HX, Std. Unit, Nat. Gas
MT4050IN18CCAC Indoor, Spark Ignition, Less Pump, Cl-Cu HX, Std. Unit, Nat. Gas
MT4500IN18CCAC Indoor, Spark Ignition, Less Pump, Cl-Cu HX, Std. Unit, Nat. Gas
MT5000IN18CCAC Indoor, Spark Ignition, Less Pump, Cl-Cu HX, Std. Unit, Nat. Gas
MT2200EN18CCAC Outdoor, Spark Ignition, Less Pump, Cl-Cu HX, Std. Unit, Nat. Gas
MT2800EN18CCAC Outdoor, Spark Ignition, Less Pump, Cl-Cu HX, Std. Unit, Nat. Gas
MT3200EN18CCAC Outdoor, Spark Ignition, Less Pump, Cl-Cu HX, Std. Unit, Nat. Gas
MT3600EN18CCAC Outdoor, Spark Ignition, Less Pump, Cl-Cu HX, Std. Unit, Nat. Gas
MT4000EN18CCAC Outdoor, Spark Ignition, Less Pump, Cl-Cu HX, Std. Unit, Nat. Gas
MT4500EN18CCAC Outdoor, Spark Ignition, Less Pump, Cl-Cu HX, Std. Unit, Nat. Gas
MT2200EN18CCAN Outdoor, Spark Ignition, Less Pump, Cl-Cu-Ni HX, Std. Unit, Nat. Gas
MT2800EN18CCAN Outdoor, Spark Ignition, Less Pump, Cl-Cu-Ni HX, Std. Unit, Nat. Gas
MT3200EN18CCAN Outdoor, Spark Ignition, Less Pump, Cl-Cu-Ni HX, Std. Unit, Nat. Gas
MT3600EN18CCAN Outdoor, Spark Ignition, Less Pump, Cl-Cu-Ni HX, Std. Unit, Nat. Gas
MT4000EN18CCAN Outdoor, Spark Ignition, Less Pump, Cl-Cu-Ni HX, Std. Unit, Nat. Gas
MT4500EN18CCAN Outdoor, Spark Ignition, Less Pump, Cl-Cu-Ni HX, Std. Unit, Nat. Gas