| Heat Exchangers
Ventilation Fans
These reports are available on a request only basis
contact: george.ragan@gov.ab.ca
339 EMI WLA 4/50 Ventilation Fan
344 Koenders Model KS18 Ventilation Fan
345 Koenders Model KV15 Ventilation Fan
346 Koenders Model KV18 Ventilation Fan
347 Koenders Model KV20 Ventilation Fan
378 Cyclone Model 60-AG-0000 Ventilation Fan
379 ZiehI-Abegg Model 451-6 Ventilation Fan
380 ZiehI-Abegg Model 501-6 Ventilation Fan
381 ZiehI-Abegg Model 562-6 Ventilation Fan
382 ZiehI-Abegg Model 631-6 Ventilation Fan
383 ZiehI-Abegg Model 451-4 Ventilation Fan
384 Prairie Pride Model TR12 Ventilation Fan
385 Prairie Pride Model TR18 Ventilation Fan
386 Prairie Pride Model TR24 Ventilation Fan
427 Chore-Time Model 14RLX Ventilation Fan
428 Chore-Time Model 18RLX Ventilation Fan
429 Chore-Time Model 24RLX Ventilation Fan
430 Hurst Model BF-12 Ventilation Fan
431 Hurst Model BF-18 Ventilation Fan
432 Hurst Model LF-20 Ventilation Fan
433 Hurst Model VSIL-24 Ventilation Fan
434 Hurst Model VSBF-16 Ventilation Fan
449 Danor Pleasantaire SD12-EVX Ventilation Fan
450 Danor Pleasantaire SD18-FVX Ventilation Fan
451 Danor Pleasantaire SD24-FVX Ventilation Fan
452 Danor Euro-Style EPD14-VX Ventilation Fan
453 Danor Euro-Style EPD18-VX Ventilation Fan
454 Danor Euro-Style EPD25-VX Ventilation Fan
459 Multifan Model 4E30 6PP Ventilation Fan
460 Multifan Model 4E45 6PP Ventilation Fan
461 Multifan Model 6E63 Ventilation Fan
462 Fan International (Gold) 4E30 Ventilation Fan
463 Fan International (Gold) 4E45 Ventilation Fan
464 Fan international (Gold) 4E50 Ventilation Fan
465 Siemens Model 2CC2-506 Ventilation Fan
466 Siemens Model 2CC2-636 Ventilation Fan
467 Siemens Model 2CC2-406 Ventilation Fan
468 Siemens Model 2CC2-456 Ventilation Fan
479 Prairie Pride Model TR8 Ventilation Fan
480 DeI-Air Model F6 Ventilation Fan
481 DeI-Air Model F8 Ventilation Fan
482 DeI-Air Model F12 Ventilation Fan
483 Dei-Air Model F16 Ventilation Fan
484 DeI-Air Model F20 Ventilation Fan
490 Summary of Ventilation Fan Reports
509 Prairie Pride TR36 Series Ventilation Fan
574 Aston-Ziehl Model ECDQ-562-6X Ventilation Fan
579 Better Air Model PF 1200 Ventilation Fan
580 Better Air Model PF 1400 Ventilation Fan
581 Better Air Model PF 1600 Ventilation Fan
582 Better Air Model PF 1800 Ventilation Fan
583 Better Air Model PF 2000 Ventilation Fan
584 Better Air Model PF 2400 Ventilation Fan
604 DeI-Air Model J-8 Ventilation Fan
605 DeI-Air Model J-12 Ventilation Fan
606 DeI-Air Model J-16 Ventilation Fan
607 DeI-Air Model J-20 Ventilation Fan
608 DeI-Air Model JH-20 Ventilation Fan
612 Agrifan 12" Ventilation Fan
613 Agrifan 14" Ventilation Fan
614 Agrifan 16" Ventilation Fan
615 Agrifan 18" Ventilation Fan
616 Agrifan 20" Ventilation Fan
617 Agrifan 24" Ventilation Fan
652 DeI-Air Model J-24 Ventilation Fan
653 Walbern 18 Inch Magna-Air Ventilation Fan
667 Prairie Pride Model TR24HS Polyfan
671 Summary of the DeI-Air Panel Fans P12, P16, P18, P20 Ventilation Fans
672 DeI-Air Northwinds Model 10K Ventilation Fan
680 Summary of Ventilation Fan Reports, 1992
Heat Exchangers
323 Blackhawk 60 Heat Exchanger
324 Del-Air A350 Heat Exchanger
619 Heat Recovery Ventilators (Better Air A-3000, C and J Jones, Del-Air A-150, Del-Air A-800, Robbco A1-3500-BIK, Z-Air 74-60-1)
Summary of Blackhawk 60 Heat Exchanger (Evaluation Report - PDF file - 0.61 MB)
Functional Performance: Overall functional performance of the Blackhawk 60 heat exchanger was good.
Fan Performance: In a typical installation, standard airflow was 280 cfm (132 L/s) exhaust and 230 cfm (109 L/s) supply, with the fans set at high speed. Supply airflow was substantially reduced at colder temperatures by operating the supply fan at low speed and adjusting a damper at the supply air inlet.
Heat Recovery: At Machinery Institute standard test conditions of 65°F (18°C) barn air temperature and 70% relative humidity, the average heat recovered by the Blackhawk 60 varied with outside temperature as follows: 6200 Btu/h (1.8 kW) at -22°F (-30°C), 7000 Btu/h (2.1 kW) at +5°F (-15°C), and 5800 Btu/h (1.7 kW) at +32°F (0°C). The heat recovery ratio (the percentage of heat recovered from the exhaust air removed from the barn) at the above three outside temperatures was 25%, 40% and 59% respectively.
Leakage: During the Machinery Institute leakage test, 18 cfm (8.5 L/s), or 6% of the normal exhaust airflow leaked into the supply air passages.
Ease of Operation and Adjustment: Ease of installation was fair. In the moderately dusty environment of a grower/finisher hog barn, the core of the Blackhawk 60 required washing every 5 or 6 weeks. Ease of cleaning was fair. The core of the Blackhawk 60 did not freeze up during the tests. Water condensing in the core of the Blackhawk 60 was conveniently drained inside the barn. Recommended settings for the damper at the supply air inlet were difficult to judge accurately.
Power Requirements: The Blackhawk 60 drew a maximum current of 1.92 A when plugged into a standard 120 V, 3 pin outlet. Average power required was 224 W.
Safety: The Blackhawk 60 was safe to operate as long as the manufacturer's safety instructions were followed. It was not CSA (Canadian Standards Association) certified to the Canadian Electrical Code.
Operator Manual: The operator manual was clearly written, very well illustrated and contained much useful information. However, instructions for setting the fan controls to prevent the core from freezing, were unclear and incomplete.
Mechanical History: Two minor problems occurred during the test.
Summary of Del-Air A350 Heat Exchanger (Evaluation Report - PDF file - 0.61 MB)
Functional Performances: Overall functional performance of the Del-Air A350 heat exchanger was very good.
Fan Performance: Standard airflow while operating at the manufacturer's recommended settings was 385 cfm (182 L/s) exhaust and 298 cfm (141 L/s) supply in the normal mode, and 612 cfm (289 L/s) exhaust in the defrost mode.
Heat Recovery: At Machinery Institute standard test conditions of 65°F (18°C) barn air temperature and 70% relative humidity, the average heat recovered by the Del-Air A350 varied with outside temperature as follows: 15,900 Btu/h (4.7 kW) at -22°F (-33°C), 11,400 Btu/h (3.3 kW) at +5°F (-15°C), and 6000 Btu/h (1.8 kW) at +32°F (O°C). The heat recovery ratio (the percentage of heat recovered from the exhaust air removed from the barn) at the above three outside temperatures was 41%, 42% and 41% respectively.
Leakage: During the Machinery Institute leakage test, 25 cfm (12 L/s) or 6% of the normal exhaust airflow leaked into the supply air passages.
Ease of Operation and Adjustment: Ease of installation was very good. In the moderately dusty environment of a grower/finisher hog barn, the core of the Del-Air A350 required washing once every 3 or 4 weeks. Ease of cleaning was very good. The core of the Del-Air A350 did not freeze up during the tests. Water condensing in the core of the Del-Air A350 drained outside the barn. During midwinter months, a large pile of ice formed beneath the heat exchanger and had to be removed weekly.
Power Requirements: The Del-Air A350 drew a maximum current of 2.12 A when plugged into a standard 120 V, 3 pin outlet. Average power required was 240 W.
Safety: The Del-Air A350 was safe to operate as long as the manufacturer's safety instructions were followed.
Operator Manual: The operator manual was clearly written, contained much useful information, but was poorly illustrated.
Mechanical History: No mechanical problems occurred during the tests.
Summary of Better Air A-3000 Heat Recovery Ventilators (Evaluation Report - PDF file - 2.33 MB)
Rate of Work: Maximum rate of heat recovery of the Better Air A-3000 was 860 Btu/min (15.1 kW) which occurred in a warm 77°F (25°C) barn with outdoor temperature -22°F (-30°C). In normal operating mode, ventilation was about 1260 cfm (590 L/s) exhaust and 875 cfm (410 L/s) supply.
Quality of Work: Heat recovery ratio ranged from 39 to 43%. Core leakage was only about 6 cfm (3 L/s) or 0.5% of exhaust airflow. Defrost control was fair. Only 3 minutes of shutdown per hour was needed in the coldest weather, but the defrost control thermostat did not cycle as intended. Cycles had to be manually activated for the test.
Power Requirements: The three fans drew approximately 6.5 A at 120 V AC, and required about 0.8 kW of power.
Ease of Operation: Ease of installing was very good. It took two men 6 hours to install the unit and defrost control in the ceiling. Ease of adjusting was good. The thermostat had to be adjusted several times and did not prevent freezing. Ease of cleaning was very good. The core was easily accessible without tools and could be cleaned from either end.
Operator Safety: The Better Air A-3000 was not CSA certified, but no hazards were apparent.
Operator's Manual: None was provided, The manufacturer was consulted for installing and operating guidelines.
Mechanical History: No mechanical problems occurred in 30 days of operating.
Summary of C and J Jones Heat Recovery Ventilators (Evaluation Report - PDF file - 2.33 MB)
Rate of Work: Maximum rate of heat recovery for the Jones MC II was 1350 Btu/min (23.8 kW) which occurred in a warm 77°F (25°C) barn with an outdoor temperature of -22°F (-30°C). Fans were not supplied, but the core was sized to ventilate about 1500 cfm (700 L/s) exhaust and 1500 cfm (700 L/s) supply.
Quality of Work: Heat recovery ratio ranged from 54 to 61%. Core leakage was only about 19 cfm (9 L/s) or 2.5% of exhaust airflow. No defrost control was supplied, so a timer was installed by PAMI. The supply fan had to be shut off for up to 7 minutes every 45 minutes to remove ice.
Power Requirements: The two Chicago blower 3/4 hp (0.6 kW) centrifugal blowers installed by PAMI drew about 21 A at 120 V AC and required about 2.4 kW of power.
Ease of Operation: Ease of installing was fair. When locating the core outside the barn, it took two men 16 hours to install the system. Ease of adjusting was very good. No routine adjustments were needed. Ease of cleaning was fair. The outside core was inconvenient to wash. The core drain line had to be insulated and heated.
Operator Safety: No hazards were apparent.
Operator's Manual: None was provided. The manufacturer provided verbal instructions and assisted with the installation, but written instructions would have helped.
Mechanical History: No mechanical problems occurred in 100 days of operating.
Summary of Del-Air A-150 Heat Recovery Ventilators (Evaluation Report - PDF file - 2.33 MB)
Rate of Work: Maximum rate of heat recovery for the Del-Air A-150 was 135 Btu/min (2.4 kW) which occurred in a warm 77°F (25°C) barn with outdoor temperature -22°F (-30°C). In normal operating mode, ventilation was about 190 cfm (90 L/s) exhaust and 125 cfm (60 Ls) supply.
Quality of Work: Heat recovery ratio ranged from 37 to 42%. Core leakage was only about 4 cfm (2 L/s) or 2.0% of exhaust airflow. The defrost control was very good. The supply fan was automatically reversed for 8 minutes each hour, which prevented any ice buildup.
Power Requirements: The two fans drew approximately 0.7 A at 120 V AC and required about 0.1 kW of power.
Ease of Operation: Ease of installing was very good. It took one man 2 hours to install the unit. Ease of adjusting was very good. No routine adjustments were needed. Ease of cleaning was very good. The core hinged open conveniently for washing. An optional filter was available.
Operator Safety: The Del-Air A-150 was CSA certified. No hazards were apparent.
Operator's Manual: The operator's manual was very good. It was thorough and well illustrated.
Mechanical History: No mechanical problems occurred in 150 days of operating.
Summary of Del-Air A-800 Heat Recovery Ventilators (Evaluation Report - PDF file - 2.33 MB)
Rate of Work: Maximum rate of heat recovery for the Del-Air A-800 was 608 Btu/min (10.7 kW) which occurred in a warm 77°F (25°C) barn with outdoor temperature -22°F (-30°C). In normal operating mode, ventilation was about 980 cfm (460 L/s) exhaust and 590 cfm (276 L/s) supply.
Quality of Work: Heat recovery ratio ranged from 32 to 36%. Core leakage was only about 10 cfm (5 L/s) or 1.0% of exhaust airflow. The defrost control was very good. The supply fan was automatically reversed for 8 minutes each hour, which prevented any ice buildup.
Power Requirements: The two fans drew approximately 3.6 A at 120V AC and required about 0.4 kW of power.
Ease of Operation: Ease of installing was very good. It took one man 2 hours to install the unit. Ease of adjusting was very good. No routine adjustments were needed. Ease of cleaning was very good. The core hinged open conveniently for washing. The optional filter was easy to clean or change.
Operator Safety: The Del-Air A-800 was CSA certified. No hazards were apparent.
Operator's Manual: The operator's manual was very good. It was thorough and well illustrated.
Mechanical History: No mechanical problems occurred in 280 days of operating.
Summary of Robbco A1-3500-BIK Heat Recovery Ventilators (Evaluation Report - PDF file - 2.33 MB)
Rate of Work: Maximum rate of heat recovery for the Robbco A1-3500-BIK was 2400 Btu/min (42.3 kW) which occurred in a warm 77°F (25°C) barn with outdoor temperature -22°F (-30°C). In normal operating mode, the ventilation was about 4600 cfm (2160 L/s) exhaust and 3200 cfm (1500 L/s) supply.
Quality of Work: Heat recovery ratio ranged from 35 to 39%. Core leakage was about 170 cfm (80 L/s) or 3.8% of exhaust airflow. Defrost control was very good. The supply fan automatically shut off for 8 minutes every hour to remove ice. The defrost timer could be manually adjusted to optimize heat recovery.
Power Requirements: The four fans drew approximately 10A at 230 V AC, and required about 16 kW of power.
Ease Of Operation: Ease of installing was fair. It took two men 16 hours to install the unit through the ceiling. Ease of adjusting was very good. The variable speed thermostat and defrost timer were easy to set. Ease of cleaning was excellent. The core was completely self cleaning.
Operator Safety: Although individual electric components were CSA certified, the Robbco A1-3500-BIK was not CSA certified. No hazards were apparent.
Operator's Manual: The operator's manual was good. It contained thorough installation guidelines, but no operating information.
Mechanical History: No mechanical problems occurred in 300 days of operating.
Summary of Z-Air Model 74-60-1 Heat Recovery Ventilators (Evaluation Report - PDF file - 2.33 MB)
Rate of Work: Maximum rate of heat recovery of the Z-Air Model 74-60-1 was 497 Btu/min [8.7 kW) which occurred in a warm 77°F (25°C) barn with outdoor temperature -22°F (-30°C). In normal operating mode, ventilation was about 950 cfm (450 L/s) exhaust and 820 cfm (385 L/s) supply.
Quality of Work: Heat recovery ratio ranged from 27 to 39%. No measurable core leakage occurred. No defrost control was supplied. A mechanical timer was installed by PAMI and the supply fan had to be shut off for up to 8 minutes per hour.
Power Requirements: The two fans drew approximately 8 A at 120 V AC and required about 0.9 kW of power.
Ease of Operation: Ease of installing was good. It took one man 1 to 12 hours to install the unit depending on ducting requirements. Ease of adjusting was good. A defrost timer had to be installed and adjusted. Ease of cleaning was fair. The core was awkward to access for thorough washing, so a filter element was installed by PAMI.
Operator Safety: The Z-Air Model 74-60-1 was CSA certified. No hazards were apparent.
Operator's Manual: The operator's manual was good. It was thorough and well illustrated, but did not contain specific information for handling the dust and humidity commonly encountered in agriculture.
Mechanical History: No mechanical problems occurred in 30 days of operating. |