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Operation and Installation Manual RNC Series 2 Speed Electronics with Installer-Adjustable High Speed RNC5-TPF Residential New Construction Series (RNC) Heat Recovery Ventilators (HRV) Auto Dehumidistat
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Operation and Installation Manual RNC Series 2 Speed Electronics with Installer-Adjustable High Speed RNC5-TPF Residential New Construction Series (RNC) Heat Recovery Ventilators (HRV) Auto Dehumidistat Function prevents unwanted use of the dehumidistat when outdoor temperatures exceed 15 C (59 F). Installation and wiring to be in accordance with CEC, NEC and local electrical codes. Important: Read and save these instructions. INSTALLER: Leave this manual for the homeowner 69-TPF 0610 Table of Contents Warranty...2 Introduction...2 Shipping and Packing List...2 Required Tools...2 Engineering Data - Model RNC5-TPF...3 Controlling your HRV How the Dehumidistat Works RNC Series Electronics Glossary...4 The Lifestyle RNC Digital Control...5 The Lifestyle RNC Ventilation Control The Lifestyle Dehumidistat...6 Optional Timers...7 Changing Speeds Defrost Operation...8 Installation Methods...9 Installation Diagrams Installation...13 Drain Connection Grilles...14 Weatherhood Installation...15 Installation of the Main Control...16 Installation and Operation of 20 Minute and 20/40/60 Minute Timers Interlocking the HRV to an Air handler/furnace Blower Dry Contacts Pitot Tube Air Flow Balancing Maintenance Routine for HRV Troubleshooting your HRV System Wiring Diagram Warranty All Heat Recovery Ventilators carry a Lifetime Warranty on the heat recovery core and a 5 (five) year replacement parts warranty. During the warranty period, if any core experiences a failure or perforation caused by normal use while owned by the original purchaser, a replacement core (FOB our plant) will be supplied at no expense. 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 air flows of the HRV, by using the balancing procedure found in this manual. NEVER install a ventilator in a situation where its normal operation, lack of operation or partial failure may result in the backdrafting or improper functioning of vented combustion equipment. Introduction The Lifebreath HRV (Heat Recovery Ventilator) is designed to introduce fresh outdoor air into a building while exhausting an equal amount of stale indoor air. During the heating season, heat energy from the stale exhausting air is transferred to the fresh incoming air via Lifebreath s patented aluminum core. During the air conditioning season, the HRV will help cool the incoming fresh air with the cooler stale exhausting air. Shipping and Packing List Package 1 of 1 contains: 1 - Assembled ventilator 1 - Bag assembly containing: 1 - Drain spout assembly (HRV units only) 4 - Hanging straps 1 - Installation manual Required Tools Installation Tools tin snips large zip ties assorted screw drivers fabric flexible duct electric drill - class II rated hammer mastic tape wire strippers alum. foil duct tape knife zip ties 1 caulking gun /2 I.D. drain hose smoke pencil Balancing Tools Pitot Tube Balancing Kit [Case, 8 ft. vinyl tubing, Pitot tube, magnehelic gauge ( ), and mounting plate] Pitot Tube with instructions and Digital Manometer (with resolution of must read to 1 /100ths of an inch) Optional Accessories 20 Minute Fan Timer Wall Mounted Dehumidistat Weatherhood Kit Round Diffuser 4 (100mm) 5 (127mm) 6 (150mm) 8 (200mm) Kitchen Grille - may be required by code for kitchen applications - contains removable grease filter NOTE Due to ongoing research and product development, specifications, ratings and dimensions are subject to change without notice. LEAVE FOR HOMEOWNER TO BE COMPLETED BY CONTRACTOR AFTER INSTALLATION Installing Contractor Telephone / Contact Serial Number Installation Date Model 2 Engineering Data Model RNC5-TPF THERMALLY CONDUCTIVE, PATENTED ALUMINUM CORE The cross-flow heat recovery core transfers heat between the two airstreams. It is easily removed for cleaning or service. MOTORS AND BLOWERS Each air stream has an independent motorized impeller (120VAC). FILTERS Washable air filters in exhaust and supply air streams. DEFROST Supply air motor switches off and exhaust motor switches to high speed to defrost core. CASE Twenty gauge painted galvanized steel (G60) for superior corrosion resistance. Insulated to prevent exterior condensation. Drain connections 2-1/2 (12 mm) OD. MOUNTING THE HRV Four threaded inserts at corners of the case designed to accept four reinforced polyester straps that are supplied with the unit. INSTALLER-SELECTABLE HIGH SPEED SETTINGS Rotating the dial on the left side of the electrical box to adjust HIGH SPEED. Hi 1 is the factory setting. Rotate one click counter-clockwise for Hi 2 and two clicks for Hi 3. Refer to Air Flow Chart on this page for High Speed fan curves. DUCT CONNECTIONS Four 5 inch (127 mm) duct connections. WEIGHT 61 lbs. (28 kg) SHIPPING WEIGHT 64 lbs. (29 kg) RNC SERIES ELECTRONICS Built-in Relay for Interfacing to furnace A standard ON/OFF switch can be added to provide Low/High Ventilation or ON/OFF functionality in order to meet building standards. Optional controls can be installed at the time of the installation or at a later date to upgrade the basic features of the ventilation system. OPTIONAL CONTROLS 99-DX-01 Lifestyle R C Digital Control 2 Speed Operation on each mode 2 user selectable operational modes: Continuous Ventilation, 20 ON/40 OFF Adjustable Dehumidistat function Connect to 3 wire 20 gauge low voltage wire. 99-BC-01 Lifestyle R C Ventilation Control - 2 Speed Fan setting (Low/High) Dehumidistat Connect to 3 wire 20 gauge low voltage wire. OPTIONAL TIMERS 99-DET01 Lifestyle 20/40/60 Minute Timer - Initiates high speed ventilation for 20, 40, or 60 minutes, (3 wire) 20 gauge wire (min.) 100' length 99-20M01 Lifestyle 20 Minute Timer - Initiates high speed ventilation for 20 minutes, (3 wire) 20 gauge wire (min.) 100 length Mechanical Timer - Initiates High speed ventilation for up to 60 minutes, (2 wire) 20 gauge wire (min.) 100' length OPTIONAL ACCESSORIES 99-DH-01 Lifestyle Dehumidistat - Initiates high speed ventilation when the indoor humidity level is above the set point. (3 wire) 20 gauge wire (min.) 100' length Duct Heater w/ Electronic SCR Thermostat, 1 Kw, 6 (150 mm) Weatherhoods, Two - 5 (125 mm) c/w 1/4 (6 mm) mesh screen DIMENSIONS RNC-TPF inches (mm) 27 (690 mm) 15 (378 mm) 2-1/4 (57 mm) 18-3/4 (475 mm) Performance Net supply air flow in cfm (L/s) against external static pressure E.S.P (external static pressure) [cfm 0.1 (25 Pa) (50 Pa) (75 Pa) (100 Pa) (125 Pa) (150 Pa) (175 Pa) (200 Pa) (225 Pa) (250 Pa) 58 (27) Max. Temperature Recovery 78% Sensible 66 cfm (31 L/s) 32 F (0 C) 74% *Sensible 66 cfm (31 L/s) 32 F (0 C) 61% *Sensible 65 cfm (30 L/s) -13 F (-25 C) 50% 60HZ 120 WATTS / Low speed. 69 WATTS / High speed 147 Amp rating 1.7 *Sensible Efficiency thermal **Latent Efficiency moisture ote: Effectiveness - based on temp. differential between the 2 airstreams Efficiency takes into account all power inputs Air Flow (cfm) HI 3 LOW HI 2 HI Static Pressure (in w.g.) Installer-Selectable High Speed Settings Rotate the dial located on the left side of electrical box to adjust High Speed. Hi 3 is the factory setting. Rotate one click for Hi 2 and two clicks for Hi 1. Low Speed is not adjustable. All units conform to CSA and UL standards. WARRANTY Units carry a LIFETIME warranty on the heat recovery core and a 5 year replacement parts warranty. All duct connections are 5 (125 mm) Date: Tag: Qty: Project: Engineer: Contractor: Supplier: Quote#: Submitted by: 3 Controlling your HRV Today's modern, tight homes require fresh outdoor air to maintain a healthy indoor air environment. The amount of ventilation you require in your home will depend upon: the number of occupants and their activity levels, the way your home was built. your personal preferences for fresh air, The HRV introduces fresh air to your home while recovering energy from the air it exhausts. Specifically, an HRV that is properly installed, operated and maintained will: exhaust stale, contaminated air recover the majority of the energy from the exhausted stale air use the recovered energy to preheat or precool outside air that is drawn into the house distribute the fresh air throughout the house HOW MUCH VENTILATION DO I NEED? During seasons when your windows and doors are closed (winter, and summer if air conditioned), the HRV should be set to operate continuously on low speed with the option of going to high speed as the need arises. For example: if you are entertaining and there is a large number of people present, the unit should be switched temporarily to high speed. You may wish to use an intermittent operational mode if your home is unoccupied (20 minutes ON / 40 minutes OFF). How the Dehumidistat Works Often today's well insulated and tight homes will have high indoor humidity levels during the heating season. High humidity levels are apparent from the visible condensation on windows. The amount of condensation on the windows will increase as outdoor temperatures drop. Your HRV will reduce indoor humidity levels when outdoor air is dryer than indoor air. This usually occurs during the heating season when outdoor temperatures are less than 15 C (59 F). Optional RNC Series wall controls have a dehumidistat which can be set to achieve a further dehumidification effect from your HRV. High speed ventilation will be initiated upon exceeding the dehumidistat setpoint.once the humidity in the house is reduced, the HRV will revert back to its previous setting. We suggest operating the HRV for the first few days without use of the dehumidistat function to observe if a further dehumidification effect will be required. The dehumidistat operates in % of RH (relative humidity) with 80 being high and 20 being low. Set the Dehumidistat to 80% to disable. If, after a few days, further dehumidification is required (the house is still too humid), set the humidity level to a lower amount. Dehumidistat Notes: Your HRV will reduce indoor humidity levels when outdoor air is dryer than indoor air. This usually occurs during the heating season when outdoor temperatures are less than 15 C (59 F). The average person in comfortable between 30-50% RH. The dehumidistat should be set to OFF for all season except the heating season. OFF is achieved by setting the dehumidistat to 80. The dehumidistat function will be disabled if outdoor temperatures exceed 15 C (59 F) for a 24 hour period. RNC Series Electronics A standard ON/OFF switch can be added to provide Low/High Ventilation or ON/OFF functionality. Refer to Dry Contacts in this manual. Optional controls can be installed at the time of the installation or at a later date, providing a number of choices for upgrading the basic features of the ventilation system. Glossary DEFROST MODE - during operation in cold weather, periodically frost must be removed from the HRV. This will occur automatically and is part of the energy efficient design. DEHUMIDISTAT - a control device that senses the amount of moisture in the air and activates high speed ventilation when the air moisture level in the home exceeds the set point. RESET - whenever resetting of the HRV is required, simply disconnect power for 30 seconds. The Self Test will occur when the HRV is re reconnected. SELF TEST - each time the HRV is powered/energized the self test function will automatically initiate. During the self test the HRV will cycle through all the speeds available, test the damper motor operation and will default back to the previous operational mode and speed selection. Total self test duration is approximately 60 seconds. STA DBY MODE - the HRV is powered/energized and waiting for fan operation to be initiated. For example, the HRV is set to Continuous Ventilation Operational Mode at Speed 0. THERMISTOR - the HRV's temperature sensor which measures electrical resistance in a known manner, as outdoor temperatures fluctuate. 4 The Lifestyle RNC Digital Control Part #99-DX-01 Part # 99-DX-01 The Lifestyle RNC Digital Control offers advanced features to control your home's ventilation. Key Features 2 Speed Fan setting (Low-1/High-2) Standby setting (Fan speed 0) Electronic Dehumidistat Two Selectable Modes of Operation - continuous ventilation - 20 min. ON / 40 min. OFF 20 / 40 /60 High Speed override button Instruction Card is inserted in the control Easy to read LCD Screen Slim-line design Connect to 3 wire 20 gauge low voltage wire Setting the Control 1. Press and release MODE button until the FAN symbol appears on the screen. Press SET. 2. SCROLL (using Up/Down Arrows) to select desired fan speed (0, 1, 2). Press SET. 3. SCROLL to select the desired operational mode (VENT, 20/40, 20/40 RECIRC*, RECIRC*, OFF). Press SET. (Refer to Manual for explanation of operational modes.) 20/40/60 Minute High Speed Timer This function temporarily initiates high speed ventilation for 20, 40 or 60 minutes. Press FAN button once for 20, twice for 40 and three times for 60 minutes. Setting the Dehumidistat Refer to How the Dehumidistat Works in this manual before setting the Dehumidistat. 1. Press and release MODE until RH and a number flashes. SCROLL to desired number. Press MODE to exit. Refer to the unit's Operation & Installation Manual for instructions on how the Dehumidistat works. 2. Press MODE to return to operational features. The Lifestyle RNC Digital Control Gives you 4 Mode Selection The Lifestyle RNC Digital Control has 4 Operational Modes* and 2 speeds on each mode to adjust indoor ventilation levels. Experiment with the ventilation levels in your home to evaluate the best amount of ventilation to suit your home and preferences. I. Continuous Ventilation Mode This is the most popular mode since it provides continuous ventilation within the home. You may, for example, select Continuous Ventilation at high speed for high household activity levels or Continuous Ventilation for lower activity levels. II. Fan Speed Indicator 20/40/60 Minute High Speed override Button Mode Select Button Mode Indicator ON/OFF Button High Speed Override Timer Indicator Connects to 3 wire 20 gauge low voltage wire Instruction card Humidity Indicator Increase Button Set button Decrease Button 20 minutes ON, 40 minutes OFF Mode This Operational Mode will provide 20 minutes of ventilation each hour. You may wish to use this ventilation mode in low speed for low household activity levels or if the home is unoccupied. How to Synchronize the Humidity Setting on the Lifestyle RNC Digital Control The Lifestyle RNC Digital wall control has a feature that will allow it to be synchronized with other humidity instruments in your home. 1. Turn off the control with the ON/OFF Button. 2. Simultaneously press and release the ON/OFF Button and the 20/40/60 Minute High Speed Override Button. 3. Use the Increase/Decrease Buttons to adjust the Humidity indicator on the display screen to the number of degrees difference between your humidity measuring devise.minus is indicated by flashing. 4. Press the MODE button. 5 The Lifestyle RNC Ventilation Control Part #99-BC-01 The Lifestyle RNC Ventilation Control offers ON/OFF, High Speed/Low speed plus an electronic dehumidistat. Key Features 2 Speed Fan setting (Low/High) Electronic Dehumidistat Instruction Card is inserted in the control Slim-line design Connect to 3 wire 20 gauge low voltage wire. Turning on the Control Press and release the ON/OFF button. The ON Indicator Light will illuminate. Adjusting the Ventilation Speed The unit will normally operate at low speed. Press and release the SPEED button to initiate high speed ventilation. The High Speed Indicator LED will illuminate. Humidity Control Your unit will produce a dehumidifying effect when outdoor humidity levels are lower than indoor humidity levels. Never use the dehumidistat feature when outdoor temperatures are above 59 F (15 C). Setting the Dehumidistat Press and release the DEHUMIDISTAT button until the DEHUMIDISTAT LED is at the desired setting. After 5 seconds the dehumidistat light will either flash or be on continuous. A flashing light indicates the humidity level is higher than the On indicator light 20 % 80 setting and the unit is operating on high speed ventilation. A continuous light indicates the humidity level is lower than the setting. Refer to the unit's Operation & Installation Manual for instructions on how the Dehumidistat works. Note - Only 1 dehumidistat should be active on a system. HIGH Instruction card Dehumidistat Indicator LEDs High Speed Indicator LED High/Low Speed button ON/OFF button The Lifestyle Dehumidistat Part #99-DH-01 Key Features The Dehumidistat measures the indoor humidity level and will initiate high speed ventilation when the moisture level in the home exceeds the set point on the control. Once the humidity in the house is reduced, the HRV will revert back to its previous setting. The Dehumidistat should be set to OFF for all season except the heating season. Connect to 3 wire 20 gauge low voltage wire. Humidity Control Your HRV will produce a dehumidifying effect when outdoor humidity levels are lower than indoor humidity levels. Never use the dehumidistat feature when outdoor temperatures are above 59 F (15 C). Note: The indoor humidity level is measured at the control. Setting the Dehumidistat Press and release the DEHUMIDISTAT button until the DEHUMIDISTAT LIGHT is at the desired setting. After 5 seconds the dehumidistat light will either flash or be on continuous. A flashing light indicates the humidity level is higher than the setting and the unit is operating on high speed ventilation. A continuous light indicates the humidity level is lower than the setting. Refer to the unit's Operation & Installation Manual for instructions on how the Dehumidistat works. Note - Only 1 dehumidistat should be active on a system. 20 % 80 Instruction card Dehumidistat Indicator LEDs Set to the desired humidity level. High speed ventilation will initiate when the indoor moisture level exceeds the set point on the control Dehumidistat Adjust button 6 Optional Timers The timer will override the Operational Mode (regardless of the setting) and initiate high speed ventilation. Upon completion of the timer cycle, the HRV will return to your selected Operational Mode and speed setting. Lifestyle 20/40/60 Minute Timer Part # 99-DET01 Initiates high speed ventilation for 20, 40 or 60 minutes. The 20/40/60 Minute Status Lights indicate high speed operation. Lockout Mode is useful if you wish to disable the timer. Set lockout by holding the Select Button for 5 seconds. Unlock by holding for 5 seconds. Connect to 3 wire 20 gauge low voltage wire. Mounts in a standard 2 x 4 electrical box. Select Button 20/40/60 Minute Status Lights Lifestyle 20 Minute Timer PART O M01 Initiates high speed ventilation for 20 minutes. The 20 Minute Status Light indicates high speed operation. Lockout Mode is useful if you wish to disable the timer. Set lockout by holding the select button for 5 seconds. Unlock by holding for 5 seconds. Connect to 3 wire 20 gauge low voltage wire. Mounts in a standard 2 x 4 electrical box. 20 Minute Status Lights Select Button 7 Defrost Operation Fan Defrost MODEL RNC5-TPF The fan defrost HRV is 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. When the outside air temperature drops below 27 F (-3 C), defrost is activated which provides for an automatic defrost cycle. During the automatic defrost cycle the fresh air supply is shut off while the exhaust fan continues to operate. This allows warm inside air to flow through the heat exchanger core melting frost accumulation. After the defrost period, the fresh air supply fan a
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