Table of Contents
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OPERATION, SIZING AND
INSTALLATION MANUAL
For Models:
40DHW
(T)
Up Flow Model
60DHW
(T)
Up Flow Model
40DHWDF
(T)
Down Flow Model
60DHWDF
(T)
Down Flow Model
40DHWH
(T)
Horizontal Model
60DHWH
(T)
Horizontal Model
4TONDHW
(T)
High CFM Lower BTUH Output
40VENTAC
No Heating Coil
60VENTAC
No Heating Coil
4TONVENTAC
No Heating Coil
TO BE COMPLETED BY CONTRACTOR AFTER INSTALLATION
FIVE YEAR WARRANTY
ON PARTS AND ACCESSORIES &
LIFETIME WARRANTY
Installing Contractor
Telephone / Contact
Serial Number
Installation Date
NOW WITH
ON HRV CORE
Model
* LEAVE FOR HOMEOWNER
NOTE: Due to ongoing research and product development, specifications,
ratings and dimensions are subject to change without notice.
CAF-02
0203
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Table of Contents
Related Manuals for Lifebreath 40DHW(T)
Summary of Contents for Lifebreath 40DHW(T)
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Page 1: Installation Manual
OPERATION, SIZING AND INSTALLATION MANUAL For Models: 40DHW Up Flow Model 60DHW Up Flow Model 40DHWDF Down Flow Model 60DHWDF Down Flow Model 40DHWH Horizontal Model 60DHWH Horizontal Model 4TONDHW High CFM Lower BTUH Output 40VENTAC No Heating Coil 60VENTAC No Heating Coil 4TONVENTAC No Heating Coil... -
Page 2: Table Of Contents
Table of Contents Introduction ... 3 Description and Purpose ... 4 Combo System Basic Principle ... 5 Specifications ... 12 - 21 Installation ... 22 - 27 Plumbing ... 28 Electrical ... 29 -30 Optional Dehumidistat ... 30 Start Up Procedure ... 31 Operation ... -
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 installation guide only for the LIFEBREATH Clean Air Furnace. Manufacturers' instructions for other components, such as the water heater/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 (replacing domestic water being used) enters the water heater, the mixed entering water is cool enough to activate the thermostat quickly. In this situation, the water heater must be capable of satisfying the combined need for hot water (domestic hot water and space heating) at the same time.
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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: Shut Off Valves
The throttling (balancing) valve is used to reduce the water flow rate and thereby increase the water temperature drop. This is done to ensure proper activation of the water heater thermostat. This valve should be a globe or balancing valve. Check Valves... -
Page 9: Expansion Tanks
EXPANSION TANKS Anti-Scald Valve An anti-scald valve is required when the water heater thermostat is set above 140˚F (60˚C). Also, an anti-scald valve may be required for all installations by the “authority having jurisdiction”. The valve is placed in the hot water supply... - Page 10 Energy Saving Room Thermostat A set back thermostat or “smart stat” can be used with a combo system, but care must be taken in the timing of the temperature changes.
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Page 11: Head Pressure
With an Integrated Combo System, the hot water 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). -
Page 12: 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 13 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: Locating The Unit
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: Horizontal Version
Option 2 - Ventilation Ports Off Right Side Models 40DHW, 60DHW & 4TONDHW 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: Pitot Tube Air Flow Balancing
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 FLOW Pitot tube Magnehelic 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
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: Electrical
Caution should be used if installing a setback thermostat to control the system. If the thermostat is set back too far, and, for example, is set to call for a lot of heat when you get out of bed, at which time showering and general water use is at its peak, then the hot water heater may not keep up. -
Page 30: Optional Dehumidistat
When R and G are closed at the furnace (by dehumidistat or relay) 24 Volts is sent to G at thermostat. 24 Volts is then sent through Y which will initiate outdoor condenser. The relay will isolate this problem. -
Page 31: Start Up Procedure
Set room thermostat at desired temperature setting. Switch fan to manual at the thermostat so the unit will run at high speed in order to perform the balancing procedure on the ventilation section. (Refer to Balancing Procedure in this manual.) After balancing the ventilation according to instructions, set the thermostats fan switch to "auto". -
Page 32: Operation
Simultaneously, the furnace 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. Once the thermostat's temperature is reached the pump will shut off, and the blower will return to its pre-set speed or off. -
Page 33: Troubleshooting
Lack of heat Check that the room thermostat is set to the desired temperature. Confirm the units have power and the shut-off valves are open. 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 Check humidifier settings. (Summer - OFF) (Winter - 30% RH to 45% RH). NOTE: Humidifier should always be 10% lower than dehumidistat. Change thermostat fan switch from manual to automatic. Humidity levels are too high If you have installed a dehumidistat ensure its setting is correct. (Summer - OFF) (Winter - 30% RH to 45% RH).
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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 logical, step by step method which should minimize the work and time involved in having the system meet the designed parameters. -
Page 36: Work Sheets
WORKSHEET FOR INTEGRATED COMBO SYSTEM DESIGN Designer/Signature: _____________________________________________________________________________ Phone ( ) _______________ Fax ( Submitted For: (Owner) Name _______________________________________ Address _____________________________________ City ______________________ Prov. _____________ Postal Code ________________ Phone ( ) ____________ Fax ( DESIGNED EQUIPMENT Back Flow Prevention Valve Expansion Tank Anti-scald Valve Throttle Valve... - Page 37 Part A - DESIGN LOAD SPECIFICATIONS A.1 Total Heat Loss _______________Btu/h Part B - EQUIPMENT SELECTION (Air Handler and Cooling) AIR HANDLER: Make: LIFEBREATH Model: ____________ B.1 Heating Output ________________________ Btu/h (110% - 140% of A.1) Equipment External Static Pressure ________ ins. W.C.
- Page 38 METHOD A - (domestic hot water usage for C.1) TABLE A 1 (NATURAL GAS AND PROPANE)* No. of Bathrooms No. of Bedrooms Nominal Tank Size (USG) No. of Bathrooms No. of Bedrooms Nominal Tank Size (USG) Not suitable for luxury or high volume applications If laundry is ensuite for a one bedroom dwelling, increase tank size to 40 USG METHOD B - (domestic hot water usage for C.2) Activity...
- Page 39 PART D - PROVING REQUIRED WATER FLOW D.1 Effective Length Calculation Fitting ________________ _________ x ________ = ___________ ________________ _________ x ________ = ___________ ________________ _________ x ________ = ___________ ________________ _________ x ________ = ___________ ________________ _________ x ________ = ___________ ________________ _________ x ________ = ___________ ________________...
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Page 40: Installed Equipment
COMMISSIONING OF INTEGRATED COMBO SYSTEM Designer/Signature: _____________________________________________________________________________ Phone ( ) _______________ Fax ( Submitted For: (Owner) Name _______________________________________ Address _____________________________________ City ______________________ Prov. _____________ Postal Code ________________ Phone ( ) ____________ Fax ( Water Heater make & model as designed Air Handler make &... -
Page 41: Work Sheets
E.1 Fill Water Heater with water E.2 Set Water Heater at designed temperature E.3 Fill Heating Loop with water E.4 Purge Circulation Pump Exhaust Air Flow Fresh Air Intake Air Flow Back Draft Damper installed in Stale Air to Outside Duct Part F - SYSTEM COMMISSIONING Design Information: (Information for this section can be found on the "... - Page 42 511 McCormick Blvd. London, Ontario N5W 4C8 Ph: (519) 457-1904 Fx: (519) 457-1676 Email: nutech@lifebreath.com Website: www.lifebreath.com...
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