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OPERATION AND
INSTALLATION MANUAL
For Models:
IMPORTANT - PLEASE READ THIS
2500IFD
MANUAL BEFORE INSTALLING UNIT
2500EFD
CAUTION
Before installation, careful consideration must be given to
how this 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 (HR
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Introduction Table of Contents These Heat Recovery Ventilators (HRVs) are designed Introduction .................................................................... 2 for commercial and industrial applications to provide fresh air to a building while exhausting an equal Select Correct HRV......................................................... 3 amount of stale air. During the winter months the incoming cold fresh air is warmed by utilizing the heat Specifications - Model 2500IFD ..............
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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 (10 L/s) per person ASHR
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Model 2500IFD SPECIFICATIONS AIR FLOW 2100 cfm (985 L/s) at 1.0"wg ESP Supply from Outside PERFORMANCE Exhaust to Outside 70% effective at 2500 cfm (1172 L/s) CORE 4" Filters Modular aluminum sensible heat recovery core. Plate-to-plate type. Slides out of either side of cabinet for service. MOTORS Motors (2) Two single shaft PSC, 3-speed, 208/230V,5.1 amps, Exhaust from Building 1 ph, 1 hp BLOWERS Two direct-drive centrifugal blowers, one per air stream. Heat Exchange Core FILTERS Supply to Bui
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Model 2500EFD (ROOFTOP) SPECIFICATIONS AIR FLOW 2100 cfm (985 L/s) at 1.0"wg ESP Exhaust PERFORMANCE Hoods Supply Hoods Hoods (2) 70% effective at 2500 cfm (1172 L/s) c/w Bug Screen CORE Modular aluminum sensible heat recovery core. Plate-to-plate type. Slides out of either side of cabinet 4" Filters for service. MOTORS Two single shaft PSC, 3-speed, 208/230V,5.1 amps, 1 ph, Motors (2) 1 hp BLOWERS Roof Curb Two direct-drive centrifugal blowers, one per air stream. Exhaust Duct 24"x16" FILTE
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Performance AIRFLOWS (Each Air Stream) 1316 (2800) HIGH SPEED HIGH SPEED 1175 (2500) 1034 (2200) MEDIUM SPEED MEDIUM SPEED 893 (1900) LOW SPEED LOW SPEED 752 (1600) 611 (1300) 470 (1000) 329 (700) 188 (400) 47 (100) 25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400 425 450 475 500 525 550 (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 EFFECTI
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Installation Tips Operation Instructions 1. Whichever method is chosen to operate the The LIFEBREATH 2500 series HRV is designed 2500, keep in mind that Air-to Air exchangers tobe operated continuously or intermittently to meet in general are not "booster fans" and are the requirements of the application. normally sized to ventilate at a steady rate. Continuous Operation To achieve optimum performance from the For continuous operation, a simple jumper across 2500, the desired ventilation rat
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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 • High speed override switch OFF Red - common / Black - hi/low / Orange - on/off PART NO. 99-116 c/w 3 wire cable 60' (18m) HIGH REMOTE DEHUMIDISTAT LOCATION: Spa or pool area, anywhere that humidity
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If the air temperature is too low the defrost time may Fan Defrost need to be increased. The unit must be mounted level (horizontal) to obtain proper drainage of water from the The Models 2500IFD and 2500EFD are equipped with heat exchange cores and drip pans.The warranty will be an electronically controlled fan defrost system to remove void if these conditions are not met. frost that collects on the warm air side of the aluminum heat transfer surfaces of the heat exchanger core. Typically, the
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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, leaving space for
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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 inst
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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 WARNING: The 2500 is a quiet, efficient, low pressure system. Special care and attention As with any mechanical system, a dedicated should be given if connecting this unit to any maintenance program will prolong the life of the other air handler that may draw more air than equipment, and maintain its optimum performance. the 2500 is designed to accommodate. We recommend at least two (2) full inspections and The HRV has become an integral component of the
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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 Fig
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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 17 BLACK - HIGH YELLOW - COM BLUE - MID RED - LOW BLACK - HIGH YELLOW - COM BLUE - MID RED - LOW
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2500 LADDER DIAGRAM 240 Volt L1 L2 15A 15A C1-1 C1-2 1 SM Blk Yel High Com C2-1 C2-2 2 SM Red Yel Low Com C3-1 C3-2 3 EM Blk Yel High Com C4-1 C4-2 4 EM Red Yel Low Com XFMRI 5 L1 L2 6 24v 5A ON/OFF 7 R2 HIGH/LOW 8 R3 SNAP DISK 9 TM1 TM1-1 10 R1 R4 11 R2-1 R1-1 R3-1 12 C1 R4-1 R3-1 13 C2 R3-1 14 C3 EM Exhaust Motor SM Supply Motor R3-1 15 C4 18
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® COMMERCIAL LIFEBREATH HEAT RECOVERY VENTILATORS • Two Year Limited Warranty • 15 Year Core Warranty ® NUTECH BRANDS 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 condensation
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