CRG Boiler Systems distributes the industrial unit Hazloc HHP hydronic high performance heater system for hazardous and severe-duty locations.

HAZLOC Heater Systems

Manufacturer of Industrial Unit Heaters for hazardous and severe-duty locations

CRG Boiler Systems also offers the HAZLOC heaters configurations for rugged conditions and inclement weather locations. The HAZLOC line of heating applications delivers climate control solutions through heating systems for asset protection solutions and improved work environment conditions. CRG regards the HAZLOC line of heating applications as a "Tier One" product selection for meeting industry demands in the most of uncompromising elements.

HHP Hydronic High Performance Heater

The HHP series of heat-exchanger unit heaters is designed for the most rugged industrial applications in steam, hot water, glycol or other fluid circulating heating systems. The HHP series is designed for pressures and temperatures up to 450 psi and 550 °F respectively. HHP heaters include our PerformaCore™ high-performance heat-exchanger cores that are available in 5/8 in. O.D. 16-gauge (0.065 in.) fin tube with single-pass (for steam or fluids) and multi-pass configurations (for fluids only) to meet your specific requirements. HHP heaters meet ASME requirements with a CRN.

Literature

Download the HHP Brochure

HHP Hydronic High Performance Heater
Download PDF

HHP Data Section

Introduction

The Hydronic High Performance (HHP) series of heat-exchanger unit heaters is designed to meet the most demanding requirements of heavy industry. The harsh operating conditions of this industry require heating equipment that is safe, reliable, dependable, and available when you need it. The rugged design features of the HHP series also makes it ideal for use in heavy-duty industries that include oil & gas, pulp & paper, power generation, mining, steel mills, foundries, water and wastewater treatment plants, chemical plants, and hazardous material storage facilities.

Designed for operating pressures up to 450 PSIG (3103 kPa)!

All All Hazloc Heaters™ HHP models are designed to ASME requirements for applications with maximum operating pressures up to 450 PSIG (3103 kPa). The four sizes of HHP heaters include our PerformaCore™ high-performance heat-exchanger cores that are available in 12 model choices of 5/8 in. O.D. fin tube with single-pass (for steam or fluids) and multi-pass configurations (for fluids only) to meet your specific requirements.

HHP heaters are suitable for a wide variety of heating fluids and are perfect for steam, hot water, or glycol applications. They are also used with other non-lethal or non-poisonous fluids (as defined by ASME) for both space heating and liquid cooling applications that include but are not limited to hot-oil heaters, lube-oil coolers, product process coolers, pumpseal coolers, etc.

Rugged design, but easily maintained!

All HHP heaters are designed for industrial applications with all features being heavy-duty to meet your most demanding environments and long-life expectations. Even with heavy-gauge steel construction used throughout the heater it does not inhibit maintenance of the product since all cabinet panels are easily removed.

Interchangeable with other brands of heaters!

Hazloc Heaters™ HHP series are designed with cabinet dimensions and mounting holes equivalent to a major competitor’s heaters making them easily interchangeable. Furthermore, our rugged and superior HHP PerformaCore™ replacement cores are also designed to slide into equivalent sizes of their heaters. An added benefit is our 18-month heater warranty!

Maximum durability… rugged fin tubes and headers!

All HHP PerformaCore™ heat-exchanger cores are constructed using rugged 16-gauge (0.065 in.) carbon-steel tubes with tension-wound aluminum fins and carbon steel headers for maximum durability, resistance to corrosion, and longer life in your demanding applications.

Heater Sizing and Selection Program

Take advantage of our proprietary heater sizing and selection program!

Hazloc Heaters™ has developed a web-based heater sizing and selection program that will assist you with estimating your building’s heating load and in selecting the right HHP series of heater for your application. Our software computes performance parameters under a diverse range of operating conditions.
Hazloc Heaters™ ACOL heater selection tool is capable of rating heaters for steam, or for fluids based on either the flow-rate or temperature-drop sizing methods. Our software is also pre-programmed with the following fluid types for quick and easy analysis.

Steam
Water
Ethylene Glycol/Water
Diethylene Glycol/Water
Therminol 66

Triethylene Glycol/Water
Dowtherm A
Dowtherm G
and others...

Once you know your heating load, all you require is the following input data!

• Type of fluid used
• Operating pressure
• Inlet fluid temperature
(liquid applications only)

• Outlet fluid temperature, or available fluid flow rate
• Altitude above sea level (ASL)
• Entering air temperature

If your fluid isn’t listed above, we can still help!

You can still size our heaters using other fluids not listed above by manually inputting the following fluid physical properties: Temperature, Density, Specific Heat, Thermal Conductivity, and Viscosity at two reference points.

This brochure was produced using Imperial units of measure. If required we can provide you with data in Metric units.

Model Coding

• † Other finned tubing options available for custom order. Contact factory.
• ^ 2" 300# ANSI blind RF flange with 1-1/2" dia. hole machined in center (eight 3/4" bolt holes).
• ‡ Contact factory for extended shipping lead times on Heresite coated cores.
• * Other voltages available upon request. Longer lead times may apply. Contact factory.
• Motors are designed to be operated at rated voltage with tolerances of ± 15%.
• If ordering explosion-proof motor, ensure equipment meets the requirements of your hazardous area rating.

HUH Physical Dimensions

Heater
Size
 12 16 20 24
Dim.
 Inches
 Inches
 Inches
 Inches
(mm) (mm) (mm) (mm)
A
 15.79
 19.80
 23.82
 27.83
(401) (503) (605) (707)
B
 19
 23
 27
 31
(483) (584) (686) (787)
C
 4.2
4.2
4.2
4.2
(107) (107) (107) (107)
D
 7.91
 7.56
 7.20
 6.85
(201) (192) (183) (174)
E
 22.25
 22.25
 23.25
 24.25
(565) (565) (591) (616)
F
 18.19
 22.20
 26.18
 30.16
(462) (564) (665) (766)
G
 16.3
 20.28
 24.29
 28.27
(414) (515) (617) (718)
H
 23.88
 27.88
 31.88
 35.88
(607) (708) (810) (911)
Specifications by Model Size & How to Order

HHP Specifications By Model Size

Model
HHP1-12
 HHP1-16
 HHP1-20
 HHP1-24
Fan diameter in. (mm)
 12 (304.8)
 16 (406.4)
 20 (508.0)
 24 (609.6)
Air delivery*    cfm (m3/hr)
 1024 (1740)
 1665 (2829)
 3225 (5479)
 4590 (7798)
Approx. air velocity* fpm (m/s)
 1226 (6.2)
 1121 (5.7)
 1407 (7.1)
 1374 (7.0)
Air throw* @ 15 psi steam ft (m)
 40 (12.2)
 47 (14.3)
 66 (20.1)
 72 (21.9)
Motor power  hp (watts)
 ¼ (186) or ⅓ (248)
 ¼ (186) or ⅓ (248)
 ½ (373)
 ½ (373)
Rec. min. mounting height  ft (m)
 7.5 (2.3)
 7.5 (2.3)
 7.5 (2.3)
 7.5 (2.3)
Approx. net weight
(without flanges)
(with flanges)		 lbs (kg) lbs (kg)
 102 (46.3)
118 (53.5)
 131 (59.4)
147 (66.7)
 168 (76.2)
184 (83.5)
 219 (99.3)
235 (106.6)
Approx. shipping weight
(without flanges)
(with flanges)		 lbs (kg)lbs (kg)
 152 (68.9)
168 (76.2)
 183 (83.0)
199 (90.3)
 227 (103.0)
243 (110.2)
 280 (127.0)
296 (134.3)
* At 70°F (21°C), 60 Hz and sea level.

HUH General Specifications

Approval CRN: 0H6987.2C - steam or fluids (not for use with lethal fl uids as defi ned by ASME, Section VIII, Div. 1, UW-2).
Maximum pressure rating 450 psig (3103 kPa).
Maximum temperature rating 550 °F (288°C).
Cabinet material 14-gauge (0.075 in.) (1.9 mm) steel. Yellow epoxy/polyester powder coated with five-stage pretreatment, including iron phosphate.
Louver blades Anodized extruded aluminum.
Fan Three-blade aluminum, steel spider and hub with 5/8 in. bore.
Fan guard Split design with close wire spacing. A 3/8 in. (9.5 mm) diameter probe will not enter.
Motor type Thermally protected CSA or UL Listed 1725 RPM permanently lubricated ball bearing type with 56 frame. See model coding for ordering requirements.
Mounting holes 9/16" diameter holes - Two at top and two at bottom of heater.
Fluid connections 1-1/2 in. NPT male Schedule 40 inlet and outlet. Optional 1–1/2" (4 bolt) & (8 bolt) CL300# RF fl anges available. [see ^ symbol on model coding for 8 bolt description]
Header material Carbon steel conforming to ASME requirements.
Finned tubes 5/8 in. (15.9 mm) outside diameter [16-gauge, 0.065 in. (1.6 mm) wall thickness] carbon steel tubes with 1-1/2 in. (38.1 mm) outside diameter copper-free, L-foot, tension-wound aluminum fins @ 10 fins per in.
Exchanger Coatings Standard coating is a black, high-heat enamel paint. Optional corrosion resistant paint or Heresite phenolic coating available.
How to Order

When ordering please follow the “Model Code Sequence Required for Ordering” format in Model Coding to specify base model, motor voltage, phase, frequency and motor enclosure type. If ordering explosion-proof motors also specify motor hazardous location area rating required.


Example Model Code: HHP1-16-C-1-A-115160-E-N-B (suitable for Class I, Div.1, Group D, T3B)

Nomenclature/Formulas/Conversions
Nomenclature

• 103 – 1000
• BTU – British Thermal Unit
• Cond. – Condensate Flow Rate
• EAT – Entering Air Temperature
• ΔT – Fluid Temperature Drop
• FAT – Final Air Temperature
• PSIG – Pounds Per Square Inch Gauge Pressure
• CFM – Cubic Feet Per Minute
• USGPM – U.S. Gallons Per Minute
• ΔP – Fluid Pressure Drop

• Condensate (lbs/hr) = actual btu/hr (divided by)
Latent Heat of Steam @ PSIG
• 1 U.S. Gallon of water = 8.34 lbs of water
• 1 U.S. Gallon = .8327 Imperial Gallons
• 1 kW = 3,414 btu/hr
• 1 Boiler HP = 33,478.8 btu/hr @ 70 psi

Properties of Steam
Gauge Pressure (PSIG)
 Temp. (°F)
 Latent Heat (btu/lb)
 Density
(lb/ft3)
2 219 965 0.0434
10 239 952 0.0612
20 259 939 0.0855
40 287 919 0.1351
50 298 912 0.1498
60 307 904 0.1818
80 324 891 0.2127
100 338 880 0.2564
150 366 857 0.3634
200 387 838 0.4686
300 422 805 0.6803
450 460 764 1.0
Accessories – Mounting Brackets

WMB*
Wall Mounting Bracket For use in buildings that have substantial walls. The Z sections provide additional support where necessary.

BMB*
Basic Mounting Bracket For applications where the support arm can be bolted or welded directly to structural steel or concrete.

PMB*
Pipe Mounting Bracket
For buildings with insufficient strength to use other types of mounting brackets. Requires 3 in. pipe (3.5 in. O.D., min. Sch. 40, not supplied).

HMB
Hanging Mounting Bracket
Ideal and economical if adequate overhead structure exists. Requires 1/2 in. pipe, cut and threaded (min. Sch. 40 not supplied).

Note:
When ordering mounting brackets, please specify the type of bracket preferred and the basic model code of the heater to be mounted. Example, PMB-HHP1-16. Mounting kits are made of steel with a black enamel paint finish. Structural support of heater and bracket during transit is required.


Thermostats

ET5STS (SPST)
Line-Voltage Thermostat 22 Amps Resistive Load, 277 VAC Max 3/4 HP@125 VAC; 1-1/2 HP@ 250/277 VAC Ship wt - 0.6 lbs (0.28 kg)


TBX1 (SPDT)
Explosion-proof Thermostat -
Class I, Groups C&D, Class II, Groups E, F & G
Temperature range: 40°F to 80°F (5°C to 27°C),
3/4” - NPT conduit opening on top and bottom.
22 Amps Resistive Load, 277 VAC Max; 3/4 HP@125 VAC;
1-1/2 HP@ 250/277 VAC
Overall dimensions - 6.4 in (16.2 cm) W x 5.6 in (14.3 cm) H x 4.4 in (11.1 cm) D
Ship wt - 5.3 lbs (2.4 kg)

Disconnect Switch, Remote Mount

XDC-01
Explosion-proof Disconnect switch
Class I, Div. 1 & 2, Grp C & D; Class II, Div. 1, Grp E, F & G; Class II, Div. 2, Grp F & G;
Class III; Class I, Zones 1 & 2, Grp IIA & IIB, T5
CSAC/US - Certified to Canadian and U.S. standards
600V, 50A max;15 HP@208/240V, 3 phase; 30 HP@480/600V, 3 phase; 2 HP@120V, 1 phase; 7.5 HP@240V, 1 phase
Ship wt - 12.0 lbs (5.4 kg)

Steam Performance Tables
HHP1-12 @60 Hz Entering Air Temperature
PSIG
 °F
 Performance
 -10 0 10 20 30 40 50 60 70
2 219 Output (103 btu/hr)
 120 114 107 101 95 89 83 77 72
Cond. (lbs/hr)
 124 117 111 105 98 92 86 80 74
FAT (°F)
 82.3 89.2 96.0 102.8 109.4 115.8 122.2 128.5 134.7
50 298 Output (103 btu/hr)
 164 157 150 143 137 130 124 118 112
Cond. (lbs/hr)
 179 172 164 157 150 142 136 129 122
FAT (°F)
 115.7 123.0 130.1 137.2 144.1 150.9 157.6 164.2 170.7
100 338 Output (103 btu/hr)
 187 179 172 165 158 152 145 139 132
Cond. (lbs/hr)
 211 203 195 187 179 172 164 157 150
FAT (°F)
 133.2 140.6 147.9 155.0 162.1 169.1 176.0 182.7 189.4
150 366 Output (103 btu/hr)
 202 195 187 180 173 166 160 153 147
Cond. (lbs/hr)
 235 226 218 209 201 193 185 178 170
FAT (°F)
 145.0 152.6 160.0 167.2 174.4 181.6 188.5 195.4 202.2
200 387 Output (103 btu/hr)
 214 206 199 192 184 177 171 164 158
Cond. (lbs/hr)
 255 246 237 228 219 211 203 195 187
FAT (°F)
 154.2 161.9 169.4 176.8 184.1 191.2 198.3 205.3 212.1
300 421 Output (103 btu/hr)
 233 225 217 210 202 195 188 181 175
Cond. (lbs/hr)
 288 278 269 259 250 242 233 225 216
FAT (°F)
 168.3 176.2 183.9 191.4 198.9 206.2 213.4 220.5 227.5
If using 50 Hz power supply, derate output values by 6%. Above figures are based on calculations at sea level.
HHP1-16 @60 Hz Entering Air Temperature
PSIG
 °F
 Performance
 -10 0 10 20 30 40 50 60 70
2 219 Output (103 btu/hr)
 193 182 172 178 152 143 133 124 115
Cond. (lbs/hr)
 199 188 178 183 157 147 137 128 119
FAT (°F)
 81.0 87.8 94.8 89.3 108.2 114.7 121.2 127.5 133.8
50 298 Output (103 btu/hr)
 263 251 240 230 219 209 198 189 179
Cond. (lbs/hr)
 287 275 263 251 239 228 217 206 195
FAT (°F)
 113.9 121.2 128.4 135.4 142.4 149.3 156.0 162.7 169.2
100 338 Output (103 btu/hr)
 299 287 276 265 254 243 232 222 212
Cond. (lbs/hr)
 338 325 312 299 287 275 263 251 240
FAT (°F)
 131.1 138.6 145.9 153.1 160.1 167.3 174.2 181.0 187.6
150 366 Output (103 btu/hr)
 324 312 300 289 277 266 256 245 235
Cond. (lbs/hr)
 376 362 349 335 322 309 297 285 273
FAT (°F)
 142.8 150.4 157.8 165.1 172.3 179.5 186.5 193.5 200.3
200 387 Output (103 btu/hr)
 343 331 319 307 296 285 274 263 253
Cond. (lbs/hr)
 408 394 379 365 352 338 325 313 300
FAT (°F)
 151.9 159.6 167.1 174.6 181.9 189.0 196.1 203.2 210.1
300 421 Output (103 btu/hr)
 373 360 348 336 325 313 302 291 280
Cond. (lbs/hr)
 462 446 431 416 402 387 373 360 347
FAT (°F)
 165.9 173.8 181.5 189.1 196.5 203.9 211.1 218.2 225.3
If using 50 Hz power supply, derate output values by 6%. Above figures are based on calculations at sea level.
Steam Performance Tables (Continued)
HHP1-20 @60 Hz Entering Air Temperature
PSIG
 °F
 Performance
 -10 0 10 20 30 40 50 60 70
2 219 Output (103 btu/hr)
 335 317 300 282 265 249 232 217 201
Cond. (lbs/hr)
 346 327 309 291 274 257 240 223 207
FAT (°F)
 71.7 79.0 86.2 93.3 100.4 107.3 114.1 120.9 127.6
50 298 Output (103 btu/hr)
 456 437 418 399 381 363 346 328 312
Cond. (lbs/hr)
 498 477 456 436 416 397 378 359 341
FAT (°F)
 101.0 108.7 116.2 123.7 131.0 138.2 145.4 152.4 159.3
100 338 Output (103 btu/hr)
 519 499 480 460 441 423 405 387 370
Cond. (lbs/hr)
 587 564 542 520 499 478 458 438 418
FAT (°F)
 116.3 124.1 131.8 139.4 146.9 154.3 161.6 168.8 175.9
150 366 Output (103 btu/hr)
 561 541 521 501 482 463 445 427 409
Cond. (lbs/hr)
 652 628 605 582 560 538 517 496 475
FAT (°F)
 126.7 134.6 142.5 150.2 157.8 165.3 172.7 179.9 187.1
200 387 Output (103 btu/hr)
 594 574 553 533 514 495 476 458 440
Cond. (lbs/hr)
 707 682 658 634 611 588 566 544 523
FAT (°F)
 134.7 142.8 150.7 158.5 166.2 173.8 181.3 188.7 195.9
300 421 Output (103 btu/hr)
 645 624 603 583 563 544 525 505 487
Cond. (lbs/hr)
 798 772 746 721 697 673 649 626 603
FAT (°F)
 147.1 155.3 163.4 171.4 179.2 186.9 194.6 202.1 209.5
If using 50 Hz power supply, derate output values by 6%. Above figures are based on calculations at sea level.
HHP1-24 @60 Hz Entering Air Temperature
PSIG
 °F
 Performance
 -10 0 10 20 30 40 50 60 70
2 219 Output (103 btu/hr)
 471 446 421 396 373 349 326 304 282
Cond. (lbs/hr)
 460 434 409 384 360 337 313 291 372
FAT (°F)
 70.6 77.9 85.2 92.3 99.4 106.4 113.3 120.0 126.8
50 298 Output (103 btu/hr)
 640 613 586 560 535 510 485 461 438
Cond. (lbs/hr)
 700 670 641 612 584 557 530 504 478
FAT (°F)
 99.6 107.2 114.8 122.3 129.6 136.9 144.1 151.2 158.1
100 338 Output (103 btu/hr)
 729 701 673 646 619 593 568 543 519
Cond. (lbs/hr)
 824 792 761 730 701 671 642 614 587
FAT (°F)
 114.6 122.5 130.2 137.9 145.4 152.8 160.1 167.3 174.4
150 366 Output (103 btu/hr)
 788 759 731 704 677 651 625 599 575
Cond. (lbs/hr)
 916 882 850 818 786 756 726 696 667.5
FAT (°F)
 124.8 132.8 140.7 148.4 156.0 163.6 171.0 178.3 185.5
200 387 Output (103 btu/hr)
 835 806 777 749 722 695 669 643 618
Cond. (lbs/hr)
 992 958 924 891 858 826 795 764 734
FAT (°F)
 132.8 140.8 148.8 156.6 164.4 172.0 179.5 186.9 194.3
300 421 Output (103 btu/hr)
 905 876 847 819 791 763 736 710 684
Cond. (lbs/hr)
 1,120 1,084 1,048 1,013 978 944 911 879 847
FAT (°F)
 144.9 153.1 161.3 169.3 177.2 184.9 192.6 200.2 207.6
If using 50 Hz power supply, derate output values by 6%. Above figures are based on calculations at sea level.
Glycol Performance Tables - 50% Ethylene Glycol†, 60°F EAT @ 60 Hz
  Entering Glycol Tempertaure
180°F
 200°F
 220°F
 240°F
Model
 ∆T
°F
 Output
103 btu/hr
 FLOW USGPM
 FAT
°F
 ∆P PSI
 Output
103 btu/hr
 FLOW USGPM
 FAT
°F
 ∆P PSI
 Output
103 btu/hr
 FLOW USGPM
 FAT
°F
 ∆P PSI
 Output
103 btu/hr
 FLOW USGPM
 FAT
°F
 ∆P PSI
HHP1-12-C-1-A
1 Pass Heater
 10 26 6.15 83.0 0.01 34 8.05 90.4 0.01 49 11.3 103.0 0.02 62 14.4 114.9 0.02
20 23 2.77 80.6 0.00 29 3.45 86.0 0.00 36 4.16 91.7 0.00 42 4.92 97.6 0.01
40 20 1.17 77.3 0.00 25 1.50 82.5 0.00 32 1.85 88.0 0.00 38 2.21 93.8 0.00
HHP1-12-C-3-A
3 Pass Heater 		10 46 11.0 101.1 0.35 58 13.7 111.7 0.51 70 16.3 122.2 0.69 82 19.0 132.6 0.91
20 28 3.28 84.6 0.05 43 5.05 98.2 0.09 55 6.45 109.2 0.13 68 7.86 120.2 0.18
40 20 1.22 78.3 0.02 26 1.56 83.5 0.02 33 1.92 89.3 0.03 41 2.37 96.5 0.03
HHP1-16-C-1-A*
1 Pass Heater 		10 41 9.73 82.3 0.02 68 15.9 97.0 0.04 88 20.5 108.0 0.05 108 24.8 118.8 0.06
20 37 4.38 80.0 0.02 46 5.46 85.3 0.02 57 6.59 90.8 0.02 67 7.71 96.5 0.02
40 31 1.85 76.8 0.12 40 2.37 81.8 0.12 50 2.92 87.2 0.12 58 3.37 91.8 0.12
HHP1-16-C-3-A
3 Pass Heater 		10 79 18.7 102.9 0.68 97 22.9 113.1 0.97 116 2.48 123.3 1.30 135 30.9 133.4 1.66
20 57 6.85 91.4 0.12 77 9.07 102.0 0.19 96 11.2 112.7 0.27 116 13.3 123.2 0.39
40 32 1.95 77.8 0.03 42 2.48 83.0 0.04 56 3.26 90.5 0.04 79 4.56 103.1 0.06
HHP1-16-C-5-A
5 Pass Heater 		10 88 20.9 102.0 3.60 107 25.1 111.0 5.02 125 29.1 119.9 6.64 144 33.1 128.7 8.38
20 72 8.58 94.7 0.69 91 10.8 103.9 1.03 111 12.9 113.1 1.42 130 15.0 122.3 1.85
40 34 2.07 76.8 0.07 61 3.64 90.0 0.16 82 4.81 99.8 0.24 102 5.93 109.5 0.34
HHP1-20-C-1-A*
1 Pass Heater 		10 97 23.0 87.2 0.14 131 30.9 97.0 0.16 166 38.6 106.8 0.19 201 46.1 116.4 0.22
20 58 6.98 76.5 0.11 74 8.74 80.9 0.11 98 11.4 87.6 0.11 135 15.6 98.1 0.12
40 49 2.93 73.8 0.10 64 3.78 77.9 0.10 80 4.68 82.4 0.11 93 5.41 86.3 0.11
HHP1-20-C-3-A
3 Pass Heater 		10 143 34.0 100.3 1.84 175 41.2 109.5 2.56 208 48.3 118.6 3.39 241 55.2 127.7 4.27
20 109 13.0 90.9 0.41 143 16.9 100.4 0.58 177 20.6 109.9 0.77 211 24.2 119.4 0.99
40 52 3.10 74.6 0.14 72 4.27 80.5 0.16 116 6.83 93.0 0.20 152 8.82 103.0 0.25
HHP1-20-C-5-A
5 Pass Heater 		10 157 37.2 99.5 9.08 189 44.5 107.7 12.6 ∆P > 15 PSI, use a 3 pass model
 ∆P > 15 PSI, use a 3 pass model
20 131 15.7 93.3 1.88 165 19.5 101.7 2.71 199 23.1 110.1 3.66 232 26.7 118.5 4.73
40 80 4.82 80.6 0.32 118 6.98 90.0 0.51 153 8.96 98.9 0.72 188 10.9 107.7 0.97
HHP1-24-C-1-A*
1 Pass Heater 		10 151 35.8 89.8 0.30 199 46.7 99.3 0.33 247 57.4 108.8 0.38 294 67.6 118.2 0.43
20 81 9.72 76.1 0.24 104 12.2 80.5 0.24 164 19.2 92.5 0.25 215 24.8 102.5 0.27
40 68 4.08 73.4 0.23 89 5.26 77.6 0.23 111 6.51 82.0 0.24 130 7.54 85.7 0.24
HHP1-24-C-3-A
3 Pass Heater 		10 204 48.6 100.5 3.54 250 58.8 109.5 4.88 295 68.6 118.5 6.43 341 78.2 127.4 8.06
20 161 19.2 92.0 0.82 208 24.6 101.3 1.13 255 29.7 110.6 1.50 302 34.8 119.8 1.90
40 78 4.65 75.5 0.27 124 7.37 84.8 0.33 178 10.4 95.4 0.41 227 13.1 105.1 0.50
HHP1-24-C-5-A
5 Pass Heater 		10 220 52.2 103.5 13.9 ∆P > 15 PSI, use a 3 pass model
 ∆P > 15 PSI, use a 3 pass model
 ∆P > 15 PSI, use a 3 pass model
20 188 22.4 97.3 3.05 234 27.6 106.4 4.29 280 32.6 115.4 5.55 326 37.5 124.5 7.12
40 127 7.61 85.3 0.65 175 10.4 94.8 0.92 223 13.1 104.2 1.10 270 15.7 113.6 1.47
HHP1-24-C-7-A
7 Pass Heater 		10 ∆P > 15 PSI, use a 5 pass model
 ∆P > 15 PSI, use a 5 pass model
 ∆P > 15 PSI, use a 3 pass model
 ∆P > 15 PSI, use a 3 pass model
20 203 24.2 96.6 8.33 249 29.3 104.9 11.7 ∆P > 15 PSI, use a 5 pass model
 ∆P > 15 PSI, use a 5 pass model
40 150 8.98 87.3 1.44 198 11.7 96.0 2.22 245 14.4 104.5 3.14 293 17.0 113.0 4.17

• * HUH single-pass heaters are not recommended for liquid service. In most cases, a smaller multi-pass heater would be more economical.
• If using 50 Hz power supply, derate output values by 6%.
• The above fi gures are based on calculations at sea level.
• Refer to model coding page.
• † Mixing ratio of ethylene glycol with water is by weight.

Water Performance Tables - 60°F EAT @ 60 Hz
  Entering Water Tempertaure
180°F
 200°F
 220°F
 240°F
Model
 ∆T
°F
 Output
103 btu/hr
 FLOW USGPM
 FAT
°F
 ∆P PSI
 Output
103  btu/hr
 FLOW USGPM
 FAT
°F
 ∆P PSI
 Output
103 btu/hr
 FLOW USGPM
 FAT
°F
 ∆P PSI
 Output
103 btu/hr
 FLOW USGPM
 FAT
°F
 ∆P PSI
HHP1-12-C-1-A
1 Pass Heater
 10 41 8.60 96.8 0.01 53 10.9 106.7 0.01 64 13.2 116.7 0.02 75 15.5 126.8 0.02
20 31 3.23 87.6 0.00 38 3.97 94.0 0.00 46 4.75 100.8 0.00 57 5.85 110.3 0.01
40 27 1.39 83.7 0.00 34 1.76 90.1 0.00 41 2.13 96.6 0.00 49 2.52 103.3 0.00
HHP1-12-C-3-A
3 Pass Heater 		10 53 11.1 107.4 0.31 65 13.3 117.3 0.44 76 15.6 127.2 0.59 87 17.9 137.1 0.76
20 44 4.55 99.0 0.07 55 5.69 108.9 0.10 66 6.84 118.8 0.13 77 8.01 128.8 0.17
40 28 1.44 84.8 0.02 37 1.93 93.3 0.02 49 2.52 103.5 0.03 60 3.10 113.5 0.04
HHP1-16-C-1-A*
1 Pass Heater 		10 72 14.8 99.0 0.03 89 18.5 108.7 0.04 107 22.1 118.4 0.05 125 25.8 128.2 0.06
20 49 5.10 86.8 0.02 64 6.67 95.2 0.02 82 8.48 104.8 0.02 100 10.3 114.7 0.02
40 42 2.20 83.1 0.02 54 2.78 89.2 0.02 65 3.38 95.6 0.02 77 3.98 102.1 0.02
HHP1-16-C-3-A
3 Pass Heater 		10 88 18.2 107.9 0.56 105 21.8 117.5 0.79 123 25.4 127.2 1.05 141 29.0 136.9 1.35
20 74 7.73 100.7 0.13 92 9.53 110.3 0.18 110 11.3 120.0 0.24 128 13.2 129.8 0.31
40 50 2.58 87.3 0.03 68 3.51 97.1 0.04 86 4.42 106.8 0.06 104 5.34 116.6 0.07
HHP1-16-C-5-A
5 Pass Heater 		10 94 19.5 104.9 2.79 112 23.2 113.5 3.88 130 26.8 122.1 5.16 148 30.5 130.7 6.67
20 83 8.64 100.0 0.60 101 10.5 108.7 0.86 120 12.3 117.3 1.17 138 14.2 126.0 1.52
40 63 3.28 90.7 0.11 81 4.22 99.5 0.17 100 5.15 108.2 0.24 118 6.09 117.0 0.32
HHP1-20-C-1-A*
1 Pass Heater 		10 132 27.4 97.2 0.15 163 33.7 106.0 0.16 195 40.1 114.8 0.19 226 46.6 123.7 0.21
20 93 9.70 86.3 0.11 124 12.9 95.0 0.12 156 16.0 103.8 0.12 187 19.3 112.7 0.13
40 69 3.56 79.3 0.11 87 4.52 84.6 0.11 107 5.51 90.0 0.11 127 6.53 95.6 0.11
HHP1-20-C-3-A
3 Pass Heater 		10 157 32.5 104.2 1.50 188 38.8 112.9 2.06 219 45.1 121.7 2.71 250 51.5 130.5 3.47
20 135 14.0 98.2 0.40 166 17.2 106.9 0.53 198 20.4 115.7 0.69 229 23.6 124.5 0.87
40 95 4.95 87.0 0.16 126 6.55 95.7 0.19 158 8.15 104.6 0.22 189 9.76 113.5 0.26
HHP1-20-C-5-A
5 Pass Heater 		10 166 34.4 101.8 6.95 198 40.8 109.7 9.63 229 47.2 117.7 12.7 ∆P > 15 PSI, use a 3 pass model
20 149 15.4 97.6 1.59 180 18.7 105.5 2.23 212 21.9 113.5 2.97 244 25.1 121.5 3.85
40 116 6.00 89.5 0.37 147 7.64 97.5 0.51 180 9.28 105.6 0.68 212 10.9 113.6 0.88
HHP1-24-C-1-A*
1 Pass Heater 		10 193 40.0 98.2 0.31 237 48.9 106.8 0.34 281 57.9 115.5 0.37 325 66.9 124.2 0.42
20 144 15.0 88.5 0.25 188 19.4 97.1 0.26 232 23.9 105.8 0.27 276 28.4 114.6 0.28
40 96 4.96 78.9 0.24 122 6.31 84.1 0.24 149 7.69 89.4 0.25 187 9.65 97.0 0.25
HHP1-24-C-3-A
3 Pass Heater 		10 222 46.0 104.0 2.84 266 54.9 112.6 3.88 309 63.7 121.2 5.10 353 72.7 129.9 6.53
20 194 20.1 98.4 0.78 237 24.5 107.0 1.02 281 29.0 115.7 1.31 325 33.5 124.4 1.65
40 141 7.32 88.1 0.32 184 9.56 96.7 0.37 228 11.8 105.4 0.43 272 14.0 114.1 0.51
HHP1-24-C-5-A
5 Pass Heater 		10 231 47.8 105.7 10.3 274 56.7 114.2 14.2 ∆P > 15 PSI, use a 3 pass model
 ∆P > 15 PSI, use a 3 pass model
20 209 21.6 101.3 2.34 252 26.1 109.9 3.29 296 30.4 118.5 4.39 340 34.9 127.2 5.66
40 165 8.59 92.9 0.51 209 10.8 101.6 0.72 253 13.2 110.3 0.98 298 15.3 119.0 1.27
HHP1-24-C-7-A
7 Pass Heater 		10 ∆P > 15 PSI, use a 5 pass model
 ∆P > 15 PSI, use a 5 pass model
 ∆P > 15 PSI, use a 3 pass model
 ∆P > 15 PSI, use a 3 pass model
20 218 22.6 99.4 6.42 262 27.1 107.3 9.03 307 31.6 115.2 12.08 ∆P > 15 PSI, use a 5 pass model
40 179 9.31 92.6 1.29 224 11.6 100.6 1.89 269 13.9 108.7 2.59 313 16.1 116.7 3.41

• * HHP single-pass heaters are not recommended for liquid service. In most cases, a smaller multi-pass heater would be more economical.
• If using 50 Hz power supply, derate output values by 6%.
• The above figures are based on calculations at sea level.
• Refer to model coding page.

HHP Engineering Specifications
1.0 General

1.1 Heat-exchanger unit heater(s) shall be supplied and installed in accordance with the plans and specifications and shall be Hazloc Heaters’ HHP series.

1.2 The unit heater(s) shall be (select one):

• suitable for steam applications operating @ ______ psi, producing __________MBH @ entering air temperature of _______ °F and @ an altitude of _________ feet.

• suitable for _______________ (type of fl uid) producing ___________ MBH @ entering fluid temperature of _______ °F, exiting fluid temperature of _______ °F, entering air temperature of _______ °F and @ an altitude of _________ feet.

2.0 Heat Exchanger

2.1 The heat exchanger shall be constructed of carbon-steel headers conforming to ASME requirements with 5/8 in. (15.9 mm) outside diameter [16-gauge, 0.065 in. (1.6 mm) wall thickness] carbon-steel tubes with 1-1/2 in. (38.1 mm) outside diameter copper-free, L-foot, tension-wound aluminum fins @ 10 fins per in.

2.2 Inlet and outlet connections shall be 2” NPT female extra heavy-duty steel type.
• 1-1/2 in. NPT male Sch. 40 extra heavy-duty carbon steel type
• 1-1/2 in. CL300# RF flange (4 bolt)
• 1-1/2 in. CL300# RF flange (8 bolt) [see ^ symbol on Page 4 for description]

2.3 The heat exchanger shall be suitable for pressures up to 450 psi (3103 kPa) and an operating temperature of 550°F (288°C).

3.0 Cabinet Assembly

3.1 The cabinet assembly shall be of a rivet and bolt together design using 14 gauge, 0.075 in. (1.9 mm) steel with a yellow baked epoxy/polyester powder coating.

3.2 Louver blades shall be individually adjustable and made of anodized extruded aluminum.

4.0 Fan & Motor Assembly

4.1 The fan shall be an accurately balanced propeller design with aluminum blades riveted to a steel hub, driven directly by the motor.

4.2 The fan shall be shielded with a heavy-duty steel wire, epoxy-coated guard. To provide easy maintenance and cleaning of the fan and motor, the fan guard shall be of a two piece construction. The guard shall not allow a 3/8 in. (9.5 mm) probe to enter.

4.3 The motor shall be heavy-duty industrial type with permanently lubricated ball bearings, and be UL Listed and/or CSA Certified.The motor shall provide a method for easy field replacement of fan blade assembly without the use of specific tools.

The motor shall be (select one):

• Totally enclosed and rated for _______ volt, _______ phase, _______ hertz service.

• Explosion-proof and rated for _______ volt, _______ phase, _______ hertz service, Class _______ , Div. (Zone) _______ , Group(s) ____________. Temp. Code _______.

Additional Products Available
Additional Products Available

SRH
he SRH series of heat-exchanger unit heaters is designed for steam applications ondrilling rigs and is designed for pressures up to 100 psi. Meets ASME requirements with a CRN.

HUH
The HUH series of heat-exchanger unit heaters is designed for steam, hot water, glycol or other fluid circulating heating systems. Suitable for pressures and temperatures up to 400 psi and 550 °F respectively. Meets ASME requirements with a CRN.

XEU1
The XEU1 series of explosion-proof electric air heaters are designed to meet U.S. and Canadian certification standards. The three sizes of XEU1 heaters are available in 27 model choices of voltage and heat output combinations to meet your specific requirements.

Limited 18-Month Warranty

Hazloc Heaters™ warrants all HHP series of explosion-proof electric heaters against defects in materials and workmanship under normal conditions of use for a period of eighteen (18) months from date of purchase based on the following terms:
• 1. The heater must not be modified in any way.
• 2. The heater must be stored, installed and used only in accordance with the owner’s manual and attached data plate information.
• 3. Replacement parts will be provided free of charge as necessary to restore any unit to normal operating condition, provided that the defective parts be returned to us freight prepaid and that the replacement parts be accepted freight collect.
• 4. The complete heater may be returned to our manufacturing plant for repair or replacement (at our discretion), freight charges prepaid.
• 5. Contamination by dirt, dust, etc. or corrosion will not be considered as defects.
• 6. This warranty shall be limited to the actual equipment involved and, under no circumstances, shall include or extend to installation or removal costs, or to consequential damages or losses.