® CLEAN • FRESH • AIR OPERATION AND INSTALLATION MANUAL For Models: 500DCS ControlAir 15 850FD/DD Analog Controls 700FD/DD Analog Controls 1200FD/DD Analog Controls 500ERV ControlAir 15 700ERV Analog Controls 1200ERV Analog Controls NOTE: ALTHOUGH SOME MODELS DIFFER IN OPERATION, THE BASIC STEPS ARE SIMILAR. 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.
Table of Contents INTRODUCTION Introduction .................................................................... 2 ERV Questions and Answers ......................................... 3 Select Correct HRV/ERV to Match Climate.....................4 Select the Correct Size HRV/ERV ................................ 5 HRV - Aluminum Core A Heat Recovery Ventilator (HRV) is designed to provide fresh air into a building while exhausting an equal amount of stale air.
ERV Questions & Answers What is the difference between an HRV and an ERV? and damp situation. In fact, about 2/3 of the energy used by the air conditioner system is to remove moisture. Therefore, when ventilating in the summer, less moisture brought into the home means less work for the air conditioner, and energy savings for you. The core in an HRV (Heat Recovery Ventilator) transfers heat from one air stream to the other. This is called sensible heat.
Selecting the Correct Size HRV/ERV 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 500DCS SPECIFICATIONS PERFORMANCE 282 (600) 235 (500) 94 (200) 25 (.1) 50 (.2) 75 (.3) 100 (.4) 125 (.5) EXTERNAL STATIC PRESSURE IN PASCALS (in. W.C.
Model 850FD/DD SPECIFICATIONS PERFORMANCE CORES Modular (6 section) patented aluminum heat recovery cores arranged for high efficiency crossflow ventilation. MOTORS Two PSC, 3 speed double shafted, 120 VAC, 3.95 Amps each (7.9 total on high speed). HP - 1/4, 1625 RPM. Watts - total on High Speed - 848. FILTERS Washable air filters in exhaust and supply air streams. BLOWERS Centrifugal type rated at 950 cfm (448 L/s) free air delivery.
Model 700FD/DD SPECIFICATIONS SUPPLY AIR FROM OUTSIDE DD MODEL ONLY AIRFLOWS (Each Air Stream) 423 (900) AIRFLOW L/s (CFM) 378 (800) 329 (700) 5.5 HIGH 282 (600) HIGH SPEED 235 (500) MED SPEED 190 (400) LOW SPEED 143 (300) 94 (200) 42 (100) 25 (.1) 50 (.2) 75 (.3) 100 (.4) 125 (.5) 150 (.6) 175 (.7) 5.0 MED 4.7 LOW EXTERNAL STATIC PRESSURE IN PASCALS (IN. W.C.
Model 1200FD/DD PERFORMANCE SPECIFICATIONS SUPPLY AIR FROM OUTSIDE 613 (1300) 566 (1200) 8.1 HIGH 518 (1100) HIGH SPEED 7.8 MED MED SPEED 7.1 LOW 472 (1000) 423 (900) 378 (800) 329 (700) LOW SPEED 282 (600) 235 (500) 25 (.1) 50 (.2) 75 (.3) 100 (.4) 125 (.5) 150 (.6) 175 (.7) EXTERNAL STATIC PRESSURE IN PASCALS (in. W.C.
® Model 500ERV CLEAN • FRESH • AIR PERFORMANCE SPECIFICATIONS AIRFLOW L/s (CFM) 282 (600) 235 (500) 6.3 HIGH SPEED 5 190 (400) 3.8 MED 4 3 2 1 143 (300) 94 (200) 3.1 LOW 42 (100) 25 (.1) 50 (.2) 75 (.3) 100 (.4) 125 (.5) EXTERNAL STATIC PRESSURE IN PASCALS (in. W.C.) TOTAL CURRENT DRAW (AMPS) @ 120 VAC AIRFLOWS (Each Air Stream) LATENT RECOVERY (MOISTURE) TRANSFER CORES Modular (4 section) 2- Enthalpic, 2 Aluminum arranged for high efficiency crossflow ventilation.
® Model 700ERV CLEAN • FRESH • AIR SPECIFICATIONS AIRFLOWS (Each Air Stream) LATENT RECOVERY (MOISTURE) TRANSFER CORES Modular (2 section) enthalpic (moisture) transfer cores arranged for efficient cross-flow ventilation. AIRFLOW L/s (CFM) 423 (900) MOTORS Two PSC, 3 speed single shafted, 120 VAC, 2.75 Amps each (5.5 total on high speed). HP - 1/10, 1625 RPM. Watts - total on high speed - 648. FILTERS Washable air filters in exhaust and supply air streams. 378 (800) 329 (700) 5.
® Model 1200ERV CLEAN • FRESH • AIR SPECIFICATIONS PERFORMANCE LATENT RECOVERY (MOISTURE) TRANSFER CORES Modular (3 section) latent recovery (moisture) transfer cores arranged for efficient cross-flow ventilation. MOTORS Two PSC, 3 speed double shafted, 120 VAC, 4 Amps each (8.1 total on high speed). HP - 1/4, 1625 RPM. Watts - total on high speed - 972. FILTERS Washable air filters in exhaust and supply air streams. BLOWERS Centrifugal type rated at 1200 cfm (566 L/s) free air delivery.
Location for Mounting The Ductwork System The HRV/ERV must be located in a conditioned space where the surrounding air temperature does not fall below 60˚F (16˚C). The unit must be mounted level (horizontal). The warranty will be void if these conditions are not met. A properly designed ducting system will allow the HRV/ERV to operate at its maximum efficiency. (Air flow will be restricted by undersized ducting, use of too many elbows, tees, bends, etc.).
Outside Weatherhoods The weatherhoods must have built-in “bird” screen with 1/4 in (63.5 mm) minimum mesh to prevent birds and rodents from entering into the ductwork. Do not use smaller mesh as it will be very susceptible to plugging up. Gravity dampers at the vents must not be used as they will restrict air flow and often “seize up”.
Fresh Air Supply System The Integrated HVAC System Figure A and B The fresh air supply ductwork from the HRV/ERV may be directly connected to the return air duct of the forced air system. Check the air flow balance of the HRV/ERV with the air handler blower both “ON” and “OFF” to determine that it does not imbalance the HRV/ERV more than 10%.
The Integrated HVAC System ECONOMIZER ROOFTOP UNIT SUPPLY DUCT RETURN AIR DUCT or BREATHER T FRESH AIR SUPPLY B.D. HRV/ERV UNIT B.D. STALE AIR EXHAUST HRV/ERV FRESH AIR SUPPLY STALE AIR EXHAUST TO HRV/ERV Figure A Example only - Duct connections not typical ECONOMIZER ROOFTOP UNIT ROOF DECK CEILING RETURN AIR PLENUM FRESH AIR SUPPLY 12" BREATHER SPACE SUPPLY DUCTWORK B.D. HRV/ERV UNIT B.D.
Various Installation Types NOTE: Figure 7A Saddle Installation When installing your HRV/ERV flexible duct connectors should be installed between the HRV/ERV and the galvanized duct work. Vibration Isolators (Supplied by others) Threaded rod and U channel (Supplied by others) Hang unit with suspended rods and "U" channel members. Figure 7B Curb Mounted Curb is wood or metal (Supplied by others) Mount unit on wooden or metal curb assembly.
Electrical Connections accumulation. After the defrost period, the fresh air supply fan automatically returns to the normal speed and fresh outside air continues to be drawn into the building. Water from the melted frost collects in the bottom drip pans and drains out through the bottom drain connections. The defrost cycle repeats automatically until the air temperature rises above 27˚F(-3˚C). It is recommended that a licensed electrician make all electrical connections.
Speed Selection and Controls Model 700, 850 and 1200 HRV/ERV only remote location as well as from high to low from a remote location. To wire the unit in this configuration you would need two electrical on/off switches to be installed at the remote location into a double gang electrical enclosure or side by side. One should be labeled on/off and the other should be labeled high/low.
ControlAir 15 OPTIONAL REMOTE CONTROLS Model 500 Only PROGRAMMABLE VENTILATION CONTROLLER (PVC) NEW! AIR SENTRY™ AIR QUALITY SENSOR LOCATION: Hallway, kitchen, office & work place (connect 1/unit only) • Advanced digital remote. • Digital dehumidistat. • Full fan speed control. • AIR SENTRY™ Air Quality Sensor built-in. • Recirculation mode (on compatible HRV/ERVs). • 7 day, 24 hour programmable timer. • Digital display and status lights. • 100' (30 m) maximum wire length.
FUNCTION & CONTROL Model 500 Only Operating the ControlAir 15 Self Test Plugging in the HRV/ERV energizes the unit. A self test function will be performed every time the HRV/ERV is energized (refer to “Self Test” for more details). After the self test has completed successfully the HRV/ERV will default to Speed 1. This is the factory default setting. Follow the instructions found on the HRV/ERV door to select desired mode and speed, or refer to the instructions found on the following page.
To select mode of operation for ControlAir 15 Model 500 Only Press and hold the fan selection button on the Control Pad. After 5 seconds the control will begin to cycle each mode holding each for 2 seconds. Release the button when the desired mode of operation is reached. Modes of Operation LED Indication OFF No LED’s illuminated HRV/ERV is off, no controls will initiate operation. Standby / On Steady Green LED and Yellow LED to indicate speed HRV/ERV will run at speed selected in ventilation mode.
PITOT TUBE AIR FLOW BALANCING It is necessary to have balanced air flows in an HRV/ERV. The volume of air brought in from the outside must equal the volume of air exhausted by the unit.
SERVICE/MAINTENANCE sharp, and the core itself susceptible to damage if dropped. Servicing your HRV/ERV on a regular schedule will result in optimum operating efficiencies and prolonged life of the equipment. When removing the core, the location it is removed from should be noted. Due to numerous applications in which this equipment can be installed, it is difficult to predict servicing intervals.
FILTERS DUCT WORK Open front service door to access the filters located in both supply and exhaust air streams. Note to remove and install filters, it may be easier to first remove the core(s). See CORE. It is a good idea to inspect ducting, outside weather hoods (wall caps), and grilles for blockage and dirt buildup, at least every six months. The filters are designed to stop large particles from entering in the core. The filters are fastened in place by a metal spring rod.
TROUBLESHOOTING YOUR HRV/ERV SYSTEM SYMPTOM CAUSE SOLUTION Poor Air Flows • 1/4” (6 mm) mesh on the outside hoods is plugged • filters plugged • core obstructed • house grilles closed or blocked • dampers are closed if installed • poor power supply at site • ductwork is restricting HRV/ERV • improper speed control setting • HRV/ERV airflow improperly balanced • clean exterior hoods or vents • remove and clean filter • remove and clean core • check and open grilles • open and adjust dampers • have elec
WIRING DIAGRAM 500 (DAMPER DEFROST) MICRO PROCESSOR BOARD P4 TO DISABLE RECIRCULATION REMOVE SEL2 THERMIST0R P2 Note: All control connections are labeled by colour. Connect to corresponding colour with low voltage wire ( 20 gauge minimum).
BLACK EXHAUST (CW) 700 STYLE UNITS ONLY 700, 850,1200 For Models: Remote Switching Analogue Style Controls Wiring Diagram FAN DEFROST TEMPERATURE SENSOR DEFROST TIMER 3 WHITE WHITE 4 BLACK BLACK 2 BLACK GND.
BLACK CCW 700 STYLE UNITS ONLY For Models: 700, 850, 1200 Remote Switching Analogue Style Controls Wiring Diagram EXHAUST (CW) DEFROST TIMER DAMPER DEFROST DAMPER MOTOR YELLOW COM WHITE CW TEMPERATURE SENSOR RED 3 BLACK BLACK 2 WHITE WHITE 4 BLACK BLACK GND.
® COMMERCIAL LIFEBREATH HEAT/ENERGY RECOVERY VENTILATORS • 2 Year Limited Warranty • 15 Year Aluminum Core Warranty • 5 Year Paper 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.
