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OPERATION, SIZING AND
INSTALLATION MANUAL
CLEAN AIR FURNACE
NOW MANUFACTURED WITH
AIRCOM ELECTRONICS
NOTE: ALTHOUGH SOME MODELS DIFFER IN OPERATION,
THE BASIC STEPS ARE SIMILAR.
CAUTION
It is always important to assess how the operation of any HRV/ERV may interact with vented combustion equipment (ie. Gas
Furnaces, Oil Furnaces, Wood Stoves, etc.).
NEVER install an HRV/ERV 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!!!
TO BE COMPLETED BY CONTRACTOR AFTER INSTALLATION
Installing Contractor
Telephone / Contact
Serial Number
Installation Date
Model
* LEAVE FOR HOMEOWNER
NOTE: Due to ongoing research and product development, specifications,
ratings and dimensions are subject to change without notice.
CAF-02-MB
1203
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Summary of Contents for Lifebreath Clean Air Furnace CAF-02-MB
- Page 1 OPERATION, SIZING AND INSTALLATION MANUAL CLEAN AIR FURNACE NOW MANUFACTURED WITH AIRCOM ELECTRONICS NOTE: ALTHOUGH SOME MODELS DIFFER IN OPERATION, THE BASIC STEPS ARE SIMILAR. CAUTION It is always important to assess how the operation of any HRV/ERV may interact with vented combustion equipment (ie. Gas Furnaces, Oil Furnaces, Wood Stoves, etc.).
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Page 2: Table Of Contents
Table of Contents Introduction ... 3 Description and Purpose ... 4 Combo System Basic Principle ... 5 Model Number Nomenclature Breakdown ... 12 Specifications ... 13 - 21 Installation ... 22 - 27 Plumbing ... 28 Function and Controls ... 29 ECM Motor Settings ... -
Page 3: Introduction
Once it is correctly installed, safety will never be an issue with your LIFEBREATH furnace. No flames, fumes or flue gases to be concerned about. Your domestic hot water heater/boiler now provides the heat source for your furnace. -
Page 4: Description And Purpose
Description and Purpose IMPORTANT NOTE The purpose of this manual is to act as an instal- lation guide only for the LIFEBREATH Clean Air Furnace. Manufacturers' instructions for other components, such as the waterheater/boiler, must be followed. All national and local code requirements must be met when installing a LIFEBREATH Clean Air Furnace. -
Page 5: Combo System Basic Principle
Combo System Basic Principles Closed/Open Combo System From the aspect of delivery of domestic hot water and space heating, the Open and Closed systems operate the same. A system becomes closed when a backflow prevention valve or check valve is installed in the cold water piping upstream of the water heater. - Page 6 Call for Space Heating Only Operation When the thermostat calls for heat, the circulation pump is activated and hot water is drawn from the top of the water heater through the air handler, and then returned to the water heater. There should be at least a 20˚F (11˚C) temperature drop between the hot water supplied to the air handler and the returning water temperature.
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Page 7: Manual Valves
Manual Valves There are a number of manual valves required for the system to operate properly and safely. These valves are used as shut off valves, drain valves and throttling valves. They can be globe, gate, ball or balancing type valves. The globe valve can be used as a shut off, drain or throttling valve. -
Page 8: Check Valves
Shut Off Valves There are 3 shut off valves required for an integrated combo system as follows: • One valve (a) on the cold water side of the water heater upstream of the heating loop connection. This valve has the ability to isolate the hot water (domestic and space heating) from the household cold water supply. - Page 9 Expansion Tanks Expansion tanks are required for “Closed Systems”(most municipal water systems are closed systems). The expansion tank has an air bladder, which will contract to relieve pressure in the system. Pressure is created in the closed system when water is heated in the water heater. Expansion tanks should always be connected to the cold water piping between the water heater shut off valve and the cold water inlet to the...
- Page 10 Water Heater Thermostat The water heater ther mostat is set by the installing contractor to provide the required temperature at the hot water outlet of the water heater. It is important that a warning label be placed near the water heater thermostat telling the homeowner not to change the thermostat setting.
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Page 11: Head Pressure
temperature is approx. 130˚F (54˚C) which is 60˚F (15.5˚C) above the return air temperature. These units typically have a temperature rise of 35˚F (2˚C) to 40˚F (4˚C) and therefore would deliver air at the diffuser at approximately 105˚F (40.5˚C) to 110˚F (43˚C). Design vs. -
Page 12: Model Number Nomenclature Breakdown
Model Number Nomenclature Breakdown Example Model Number Model Configuration CAF - Clean Air Furnace (Built-in HRV) AH - Air Handler (No HRV) Configuration U - Upflow D - Downflow H - Horizontal Note: Refer to individual specification pages for Hydronic Coil and Blower configurations. -
Page 13: Specifications
Specifications Core Ventilation system has patented aluminum heat recovery core (standard) or an enthalpic energy recovery core (optional) for energy-efficient ventilation. Enthalpic cores are recommended for regions where the temperature does not drop below 25˚F (-4˚C). Filters Washable air filters in exhaust and supply air streams of ventilation section, 1" pleated in return plenum side. - Page 14 Specifications Core Ventilation system has patented aluminum heat recovery core (standard) or an enthalpic energy recovery core (optional) for energy-efficient ventilation. Enthalpic cores are recommended for regions where the temperature does not drop below 25˚F (-4˚C). Filters Washable air filters in exhaust and supply air streams of ventilation section, 1" pleated in return plenum side.
- Page 15 Specifications Core Ventilation system has patented aluminum heat recovery core (standard) or an enthalpic energy recovery core (optional) for energy-efficient ventilation. Enthalpic cores are recommended for regions where the temperature does not drop below 25˚F (-4˚C). Filters Washable air filters in exhaust and supply air streams of ventilation section, 1" pleated in return plenum side.
- Page 16 Specifications Core Ventilation system has patented aluminum heat recovery core (standard) or an enthalpic energy recovery core (optional) for energy-efficient ventilation. Enthalpic cores are recommended for regions where the temperature does not drop below 25˚F (-4˚C). Filters Washable air filters in exhaust and supply air streams of ventilation section, 1" pleated in return plenum side.
- Page 17 Specifications Core Ventilation system has patented aluminum heat recovery core (standard) or an enthalpic energy recovery core (optional) for energy-efficient ventilation. Enthalpic cores are recommended for regions where the temperature does not drop below 25˚F (-4˚C). Filters Washable air filters in exhaust and supply air streams of ventilation section, 1" pleated in return plenum side.
- Page 18 Specifications Core Ventilation system has patented aluminum heat recovery core (standard) or an enthalpic energy recovery core (optional) for energy-efficient ventilation. Enthalpic cores are recommended for regions where the temperature does not drop below 25˚F (-4˚C). Filters Washable air filters in exhaust and supply air streams of ventilation section, 1" pleated in return plenum side.
- Page 19 Specifications Core Ventilation system has patented aluminum heat recovery core (standard) or an enthalpic energy recovery core (optional) for energy-efficient ventilation. Enthalpic cores are recommended for regions where the temperature does not drop below 25˚F (-4˚C). Filters Washable air filters in exhaust and supply air streams of ventilation section, 1" pleated in return plenum side.
- Page 20 Specifications Core Ventilation system has patented aluminum heat recovery core (standard) or an enthalpic energy recovery core (optional) for energy-efficient ventilation. Enthalpic cores are recommended for regions where the temperature does not drop below 25˚F (-4˚C). Filters Washable air filters in exhaust and supply air streams of ventilation section, 1" pleated in return plenum side.
- Page 21 Specifications Core Ventilation system has patented aluminum heat recovery core (standard) or an enthalpic energy recovery core (optional) for energy-efficient ventilation. Enthalpic cores are recommended for regions where the temperature does not drop below 25˚F (-4˚C). Filters Washable air filters in exhaust and supply air streams of ventilation section, 1" pleated in return plenum side.
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Page 22: Installation
Installation The purpose of this manual is to give the contractor guidelines for installing the LIFEBREATH Clean Air Furnace. All national and local codes relating to this type of equipment must be followed. Locating The Unit The Clean Air Furnace is designed to be installed vertically, (unless it is designated as a Horizontal unit ”H”), in a conditioned space, where the... - Page 23 Option 2 - Ventilation Ports Off Right Side Upflow Models Remove circular metal knockout Remove styrofoam knockout Penetrations from sheet metal screws used to fasten the ductwork to the cabinet of the unit should only be placed into the duct flange provided. This is to avoid contact and damage of the heating/air conditioning coils and internal wiring.
- Page 24 Locating Intake Weatherhood The intake weatherhood should be located as follows: • 4 - 6' from ventilation exhaust hood, and upstream of prevailing winds, if possible. • At least 6' from a dryer vent, oil fill pipes, combustion outlets, gas meters, garbage containers or anything else, which may contaminate the air.
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Page 25: Balancing Procedure
Pitot Tube Air Flow Balancing It is necessary to have balanced air flows in an HRV. The volume of air brought in from the outside must equal the volume of air exhausted by the unit. If the air flows are not properly balanced then: •... -
Page 26: Balancing Collar Instructions
Pitot Tube and Gauge This is an example for determining the airflow in a 6" duct. The Pitot tube reading was 0.025 inches of water. From the chart, this is 640 feet per minute. The 6" duct has a cross sectional area of: 3.14 x (6"÷12) ÷4 = 0.2 square feet... -
Page 27: Drain Line
Drain Line The ventilation portion of the Clean Air Furnace has two drain pans for removing condensation, which may occur on the heat recovery core during cold weather. Piping The hot water piping between the hot water tank and the Clean Air Furnace should be new copper type, and should not be treated with chemicals, sealant or anything else, that will interfere with the purity of the potable water. -
Page 28: Plumbing
Plumbing In order to improve serviceability of our products, the check valve is included with our manual kit for field installation between the air-handler and hot water source. The check valve should be installed in a vertical run of pipe with the flow of water in an upward direction. -
Page 29: Function And Controls
Function & Controls Automatic Self Test Approximate duration - 1.5 minutes. Unit will perform a self test each time power is first applied. Unit will cycle blower through all speeds, holding each for 15 seconds. Remainder of test is for circuit board tests, after which normal operation will resume. -
Page 30: Ecm Motor Settings
ECM MOTOR SETTINGS Switch Setting Cool Switches Both OFF 1 0N - 2 OFF 1 OFF - 2 ON 1 ON - 2 ON Switch Setting Heat Switches Both OFF 3 0N - 4 OFF 3 OFF - 4 ON 3 ON - 4 ON Switch Setting Adjust Switches... -
Page 31: Operation
Operation Heating/Cooling When the room thermostat calls for heat, it acti- vates a circulation pump located inside the Clean Air Furnace. This pump delivers hot water from the water heater, through the furnace coil and back to the water tank. Simultaneously, the fur- nace blower switches on to high speed and will start circulating air across the coil, which picks up heat and delivers it to the rest of your home. -
Page 32: Start Up Procedure
Start-Up Procedure In order for any appliance to work properly it must be set up and tested by a knowledgeable technician. The following conditions must be met prior to start-up 1. Ensure that connecting water lines are purged and free of debris. Caution: solder or other debris may cause the furnace pump or check valve to malfunction. -
Page 33: Troubleshooting
Troubleshooting Lack of heat 1. Check that the room thermostat is set to the desired temperature. 2. Confirm the units have power and the shut-off valves are open. 3. Ensure there is power to the unit and that the pump is working. If the pump is not working properly it may be stuck. - Page 34 Humidity levels are too low 1. If you have installed a dehumidistat ensure that its setting is correct. (Summer - OFF) (Winter - 30% RH to 45% RH). 2. Check humidifier settings. (Summer - OFF) (Winter NOTE: Humidifier should always be 10% lower than dehumidistat.
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Page 35: System Commissioning
System Commissioning This section of the manual is designed to be used with the “Commissioning of Integrated Combo System” worksheet. The worksheet is designed to guide you through the start-up process in a logi- cal, step by step method which should minimize the work and time involved in having the system meet the designed parameters. -
Page 42: Wiring Diagrams
Wiring Diagram Defrost Freeze... -
Page 43: Ecm Wiring Diagram
ECM Wiring Diagram Defrost Freeze...
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