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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. After installation, the compatibility
of the two pieces of equipment must be confirmed, by measuring the airflow’s of the Heat Recovery Ventilator (HRV), by
using the balancing procedure
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INTRODUCTION Table of Contents These Heat Recovery Ventilators (HRVs) are designed Introduction .................................................................... 2 for commercial and industrial applications to provide Select Correct HRV......................................................... 3 fresh air to a building while exhausting an equal amount of stale air. During the winter months the Specifications - Model 2500IFD .................................. 4 incoming cold fresh air is warme
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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. Small restaurants, Donut Shops and Fast food stores Bank Seats 40 Customers 25 Employees 5 Staff 9 Total 45 Total 34 ASHRAE requirement 20 cfm (10L/s) per person ASHRA
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Model 2500IFD SPECIFICATIONS AIR FLOW Supply from Outside 2100 cfm (985 L/s) at 1.0"wg ESP Exhaust to Outside PERFORMANCE 70% effective at 2500 cfm (1172 L/s) 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 Exhaust from Building Two single shaft PSC, 3-speed, 208/230V,5.1 amps, 1 ph, 1 hp BLOWERS Two direct-drive centrifugal blowers, one per air stream. Heat Exchange Core Supply to Building
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PERFORMANCE AIRFLOWS (Each Air Stream) 1316 (2800) HIGH SPEED 1175 (2500) 1034 (2200) MEDIUM SPEED 893 (1900) LOW SPEED 752 (1600) 611 (1300) 470 (1000) 329 (700) 188 (400) 47 (100) 400 425 450 475 500 525 550 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) (1.6) (1.7) (1.8) (1.9) (2.0) (2.1) (2.2) EXTERNAL STATIC PRESSURE IN PASCALS (in. W.C.) TEMPERATURE
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Model 2500EFD SPECIFICATIONS (ROOFTOP) AIR FLOW 2100 cfm (985 L/s) at 1.0"wg ESP Exhaust PERFORMANCE Hoods Supply Hoods 70% effective at 2500 cfm (1172 L/s) Hoods (2) c/w Bug Screen CORE Modular aluminum sensible heat recovery core. Plate-to-plate type. Slides out of either side of 4" Filters cabinet for service. MOTORS Motors (2) Two single shaft PSC, 3-speed, 208/230V,5.1 amps, 1 ph, 1 hp BLOWERS Roof Curb Exhaust Duct Two direct-drive centrifugal blowers, one per air stream. 24"x16" FILT
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PERFORMANCE AIRFLOWS (Each Air Stream) 1316 (2800) HIGH SPEED 1175 (2500) 1034 (2200) MEDIUM SPEED 893 (1900) LOW SPEED 752 (1600) 611 (1300) 470 (1000) 329 (700) 188 (400) 47 (100) 400 425 450 475 500 525 550 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) (1.6) (1.7) (1.8) (1.9) (2.0) (2.1) (2.2) EXTERNAL STATIC PRESSURE IN PASCALS (in. W.C.) TEMPERATURE
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Operation Instructions Installation Tips The LIFEBREATH 2500 series HRV is designed 1. Whichever method is chosen to operate the tobe operated continuously or intermittently to meet 2500, keep in mind that Air-to Air exchangers the requirements of the application. in general are not "booster fans" and are normally sized to ventilate at a steady rate. CONTINUOUS OPERATION For continuous operation, a simple jumper across To achieve optimum performance from the the ON/OFF and COMMON jumper term
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I I I I I I I I I I I I I I I I I I I I I I I I Optional Remote Controls DEHUMIDISTAT VENTILATION CONTROL* ON 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 OFF PART NO. 99-116 c/w 3 wire cable 60' (18m) HIGH REMOTE DEHUMIDISTAT Supplied LOCATION: Spa or pool area, anywhere that humidity is a concern. and
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Fan Defrost If the air temperature is too low the defrost time may need to be increased. The unit must be mounted level The Models 2500IFD and 2500EFD are equipped with (horizontal) to obtain proper drainage of water from the an electronically controlled fan defrost system to remove heat exchange cores and drip pans.The warranty will be frost that collects on the warm air side of the aluminum void if these conditions are not met. heat transfer surfaces of the heat exchanger core. When the outsi
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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 U channels being put on lip of cabinet Lip Hang unit with threaded rods and U channel members. 2500EFD Roof mount Vibration isolators May be anchored to floor, leav
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Roof Curb Assembly Instructions FRAME ASSEMBLY Roof Curb Assembly 1. Take one end piece (locking tabs) and one side Figure 1 piece (slots). Stand both pieces vertically on the floor or roof. See 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 correspond-
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NOTE: It is extremely important to design and install Drains the fresh air intake in an area where the hoods will gather the freshest air, free from restriction. Connect the stainless steel drain pans in the bottom of Recommended: the HRV to a drain line fastened to the holes provided. • no less than 10 ft. (3 m) apart from each other See pg.10 for location of the drain pans and the drain • at least 18 in. (46 cm) above ground level connections. Create a "P" trap to prevent odours from • away f
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Stale Air Return System Fresh Air Supply System The stale air return system is used to draw air from the The fresh air supply ductwork from the HRV may be points in the building where the worst air quality prob- directly connected to the return air duct of the forced lems occur. Balancing dampers and/or adjustable air system. When directly connected it is recommend- grilles are recommended on all return air lines which ed that the air handler blower be in constant operation are used during ins
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PITOT TUBE AIR FLOW BALANCING - “Commercial” It is necessary to have balanced air flows in an HRV. The volume of typical reading. Repeat this procedure in the other (supply or return) air brought in from the outside must equal the volume of air exhausted by duct. Determine which duct has the highest airflow (highest reading on the unit. If the air flows are not properly balanced, then; the gauge). Then damper that airflow back to match the lower reading • The HRV may not operate at its maximum e
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The Integrated HVAC System Maintenance The 2500 is a quiet, efficient, low pressure As with any mechanical system, a dedicated system. Special care and attention should be maintenance program will prolong the life of the equipment, and maintain its optimum performance. given if connecting this unit to any other air handler that may draw more air than the 2500 is designed to accommodate. We recommend at least two (2) full inspections and cleanings per year under normal operating conditions, an
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The Integrated HVAC System Check design static pressure
of air handler to ensure it is
ROOFTOP compatible with HRV HEAT/COOL UNIT FRESH AIR TO BUILDING SUPPLY DUCT FRESH AIR STALE AIR RETURN SUPPLY EXHAUST DAMPERS OR AIR DUCT ADJUSTABLE GRILLES BA HRV UNIT EXHAUST BALANCING TO HRV DAMPERS Figure 4 ROOFTOP HEAT/COOL UNIT ROOF DECK CEILING RETURN AIR PLENUM SUPPLY DUCTWORK FRESH AIR HRV UNIT INTAKE STALE AIR A B EXHAUST HRV FRESH STALE AIR AIR SUPPLY EXHAUST DUCT BALANCING DAMPERS F
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2500 WIRING DIAGRAM BROWN
BROWN
CAP
CAP
BROWN
BROWN
SUPPLY
EXHAUST
MOTOR MOTOR SUPPLY
EXHAUST
C1 C2 C3 C4 HIGH LOW HIGH LOW R1 R2 R3 R4 NO NC NO NC NO NC NO NC TIMER COM COM COM COM SNAP
T6 DISK T5 24V 240V T4 F1 ON/OFF ON/OFF F2 F3 T3 MAX
MAX
HIGH/LOW HIGH/LOW 15A 15A T2 XFRM1 L1 L2 COMMON COMMON 240 VAC
T1 5 AMP 15 AMPS 24 VAC 24 VAC TI-109
07/97 18 BLACK - HIGH YELLOW - COM BLUE - MID RED - LOW BLACK - HIGH YELLOW - COM BLUE - MID RED - LOW
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® 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. ® This Warranty is personal to NUTECH and is in effect from the date of the original pur- chase for a period of two years, save and except that a 15 YEAR WARRANTY is given to the ® LIFEBREATH core should it develop a conde
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511 McCormick Blvd.
London, Ontario N5W 4C8
Ph: (519) 457-1904
Fx: (519) 457-1676
Email: nutech@lifebreath.com
Website: www.lifebreath.com
