OPERATION AND INSTALLATION MANUAL For Models: 2500IFD 2500EFD APPLICATION WARNING!!! CAUTION Before installation, careful consideration must be given to how the system will operate if connected to any other piece of mechanical equipment, i.e. a forced air furnace or air handler, operating at a higher static.
INTRODUCTION Table of Contents These Heat Recovery Ventilators (HRVs) are designed for commercial and industrial applications to provide fresh air to a building while exhausting an equal amount of stale air. During the winter months the incoming cold fresh air is warmed by utilizing the heat recovered from the stale air before it is exhausted to the outdoors.
Selecting the Correct Size HRV Commercial and Institutional Requirements For outdoor air requirements, ASHRAE has produced the Ventilation Standard 62-1989 that is used to determine acceptable ventilation rates. This standard is referenced directly or used as “Good Engineering Practice” in most Code documents or design criteria.
Model 2500IFD SPECIFICATIONS AIR FLOW 2100 cfm (985 L/s) at 1.0"wg ESP PERFORMANCE 70% effective at 2500 cfm (1172 L/s) Supply from Outside Exhaust to Outside 4" Filters CORE Modular aluminum sensible heat recovery core. Plate-to-plate type. Slides out of either side of cabinet for service. Motors (2) MOTORS Two single shaft PSC, 3-speed, 208/230V,5.1 amps, 1 ph, 1 hp Exhaust from Building BLOWERS Two direct-drive centrifugal blowers, one per air stream.
PERFORMANCE AIRFLOWS (Each Air Stream) AIRFLOW L/s (CFM) 1316 (2800) HIGH SPEED 1175 (2500) 1034 (2200) 893 (1900) MEDIUM SPEED LOW SPEED 752 (1600) 611 (1300) 470 (1000) 329 (700) 188 (400) 47 (100) 25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 (0.1) (0.2)(0.3) (0.4) (0.5) (0.6) (0.7) (0.8) (0.9) (1.0) (1.1) (1.2) (1.3) (1.4) (1.5) 400 425 450 475 500 525 550 (1.6) (1.7) (1.8) (1.9) (2.0) (2.1) (2.2) EXTERNAL STATIC PRESSURE IN PASCALS (in. W.C.
Model 2500EFD (ROOFTOP) SPECIFICATIONS AIR FLOW 2100 cfm (985 L/s) at 1.0"wg ESP PERFORMANCE 70% effective at 2500 cfm (1172 L/s) CORE Modular aluminum sensible heat recovery core. Plate-to-plate type. Slides out of either side of cabinet for service. Exhaust Hoods Supply Hoods Hoods (2) c/w Bug Screen MOTORS Two single shaft PSC, 3-speed, 208/230V,5.1 amps, 1 ph, 1 hp 4" Filters Motors (2) BLOWERS Two direct-drive centrifugal blowers, one per air stream.
PERFORMANCE AIRFLOWS (Each Air Stream) AIRFLOW L/s (CFM) 1316 (2800) HIGH SPEED 1175 (2500) 1034 (2200) 893 (1900) MEDIUM SPEED LOW SPEED 752 (1600) 611 (1300) 470 (1000) 329 (700) 188 (400) 47 (100) 25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 (0.1) (0.2)(0.3) (0.4) (0.5) (0.6) (0.7) (0.8) (0.9) (1.0) (1.1) (1.2) (1.3) (1.4) (1.5) 400 425 450 475 500 525 550 (1.6) (1.7) (1.8) (1.9) (2.0) (2.1) (2.2) EXTERNAL STATIC PRESSURE IN PASCALS (in. W.C.
Operation Instructions Installation Tips The LIFEBREATH 2500 series HRV is designed tobe operated continuously or intermittently to meet the requirements of the application. 1. Whichever method is chosen to operate the 2500, keep in mind that Air-to Air exchangers in general are not "booster fans" and are normally sized to ventilate at a steady rate.
Optional Remote Controls DEHUMIDISTAT VENTILATION CONTROL* LOCATION: Spa or pool area, anywhere that humidity is a concern. (connect 1/unit only) • Ventilation control turns HRV system OFF and ON. • Dehumidistat increases ventilation when required Red - common / Black - hi/low / Orange - on/off PART NO. 99-116 c/w 3 wire cable 60' (18m) ON OFF HIGH REMOTE DEHUMIDISTAT LOCATION: Spa or pool area, anywhere that humidity is a concern.
Fan Defrost If the air temperature is too low the defrost time may need to be increased. The unit must be mounted level (horizontal) to obtain proper drainage of water from the heat exchange cores and drip pans.The warranty will be void if these conditions are not met. The Models 2500IFD and 2500EFD are equipped with an electronically controlled fan defrost system to remove frost that collects on the warm air side of the aluminum heat transfer surfaces of the heat exchanger core.
Mounting the 2500 2500IFD Saddle mount (not provided) Threaded rods * NOTE: When installing your Lifebreath ® HRV, flexible duct connectors should be installed between the HRV and the galvanized ductwork 2500IFD Platform mount (not provided) 2 X 4 under unit and on top of hanging bracket to prevent weight of unit from being put on lip of cabinet U channels Lip Hang unit with threaded rods and U channel members.
Roof Curb Assembly Instructions FRAME ASSEMBLY Roof Curb Assembly 1. Take one end piece (locking tabs) and one side piece (slots). Stand both pieces vertically on the floor or roof. See Figure 1. Figure 1 2. Raise slightly the corner of the end piece (locking tabs) and mate with side piece (slots), ensuring that lower locking tab with leading edge is through slot opening. See Figure 2. 3.Push down on top edge of end piece. Ensure that all 3 of the locking tabs are feeding into each corresponding slot.
NOTE: It is extremely important to design and install the fresh air intake in an area where the hoods will gather the freshest air, free from restriction. Recommended: • no less than 10 ft. (3 m) apart from each other • at least 18 in. (46 cm) above ground level • away from sources of contaminants, such as automobile exhaust fumes, gas meters, garbage containers, cooling towers, etc. • not exposed to prevailing winds, whenever reasonably possible.
Stale Air Return System Fresh Air Supply System The stale air return system is used to draw air from the points in the building where the worst air quality problems occur. Balancing dampers and/or adjustable grilles are recommended on all return air lines which are used during installation to help balance the "draw" from different areas of the building. Note that the installation schematics show balancing dampers and/or adjustable grilles on all return air lines coming back to the unit.
PITOT TUBE AIR FLOW BALANCING - “Commercial” typical reading. Repeat this procedure in the other (supply or return) duct. Determine which duct has the highest airflow (highest reading on the gauge). Then damper that airflow back to match the lower reading from the other duct. The flows should now be balanced. Actual airflow can be determined from the gauge reading. The value read on the gauge is called the velocity pressure.
The Integrated HVAC System Maintenance The 2500 is a quiet, efficient, low pressure system. Special care and attention should be given if connecting this unit to any other air handler that may draw more air than the 2500 is designed to accommodate. As with any mechanical system, a dedicated maintenance program will prolong the life of the equipment, and maintain its optimum performance.
The Integrated HVAC System Check design static pressure of air handler to ensure it is compatible with HRV ROOFTOP HEAT/COOL UNIT FRESH AIR TO BUILDING SUPPLY DUCT FRESH AIR SUPPLY RETURN AIR DUCT DAMPERS OR ADJUSTABLE GRILLES STALE AIR EXHAUST B A HRV UNIT EXHAUST TO HRV BALANCING DAMPERS Figure 4 ROOFTOP HEAT/COOL UNIT ROOF DECK CEILING RETURN AIR PLENUM FRESH AIR INTAKE SUPPLY DUCTWORK HRV UNIT STALE AIR EXHAUST A B HRV FRESH AIR SUPPLY STALE AIR EXHAUST DUCT BALANCING DAMPERS Figur
2500 WIRING DIAGRAM BROWN BROWN BROWN CAP SUPPLY RED - LOW BLUE - MID BLACK - HIGH YELLOW - COM EXHAUST MOTOR RED - LOW BLUE - MID BLACK - HIGH YELLOW - COM SUPPLY MOTOR EXHAUST C1 C2 C3 C4 HIGH LOW HIGH LOW R1 NO R2 NC CAP BROWN NO R3 NO NC R4 NC NO NC TIMER COM SNAP DISK COM COM COM T6 T5 24V 240V T4 F1 ON/OFF ON/OFF F2 T3 HIGH/LOW T2 COMMON T1 F3 MAX 15A HIGH/LOW XFRM1 COMMON 5 AMP 24 VAC 24 VAC MAX 15A L1 L2 240 VAC 15 AMPS TI-109 07/97 18
® COMMERCIAL LIFEBREATH HEAT RECOVERY VENTILATORS • Two Year Limited Warranty • 15 Year Core Warranty NUTECH ENERGY SYSTEMS INC. ® (NUTECH) warrants to the purchaser of the Commercial LIFEBREATH® model and accessories referred to below, to be free from manufacturing defects.
511 McCormick Blvd. London, Ontario N5W 4C8 Ph: (519) 457-1904 Fx: (519) 457-1676 Email: nutech@lifebreath.com Website: www.lifebreath.