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Summary of Contents for Famco ECONOMIZER BREATHE SMARTER
- Page 1 Installation Manual Essentials 120213 PATENT PENDING BREATHE SMARTER...
- Page 2 Installation Manual Essentials 120213 OVERVIEW - TYPICAL INSTALLATION SEQUENCE IF YOU HAVE NOT INSTALLED A FAMCO IAQ ECONOIZER BEFORE, IT IS RECOMMENDED THAT YOU READ ALL INSTRUCTIONS IN THIS MANUAL BEFORE STARTING. 1) Determine if existing system allows for proper installation of the IAQ Economizer: a.
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Page 3: Before Beginning Installation
Systems with a modulating fan have several options for installation. Visit famcoiaq.com/MANUALS for wiring with modulating fans. Visit famcoiaq.com/MANUALS for wiring FAMCO for use with heat pumps. Verify that the existing system is operating properly. Initiate a call for cooling and observe operation of the blower and condensing unit, and delivery of cooled air. - Page 4 Installation Manual Essentials 120213 RESIDENTIAL (SINGLE BOX) SYSTEM – COMPONENT LOCATION (FIGURE 1) IMPORTANT: MINIMIZING TURNS AND BENDS IN DUCTWORK IS CRITICAL TO SYSTEM PERFORMANCE. THE OUTSIDE AIR TEMPERATURE THERMOSTAT MUST BE LOCATED IN A COOL OUTSIDE LOCATION OUTSIDE AIR INTAKE LOUVER/TRANSITION REPRESENTING OUTDOOR AIR TEMP, NOT EXPOSED EXTERIOR WALL (NORTH SIDE PREFERRED, TO DIRECT SUNLIGHT OR ADJACENT TO ATTIC...
- Page 5 West or East side. Installing the gable vent on the South side may significantly degrade system performance. If installation on the North, West or East side are not possible, FAMCO recommends using a rooftop intake. Preferred orientation for roof vents is the same as for gable vents.
- Page 6 Installation Manual Essentials 120213 DO NOT install the outdoor thermostat inside the ductwork or louver, on the South or East side of the home, or where it will be exposed to direct sunlight or other sources of heat such as adjacent to an attic wall or near an air conditioning condensing unit.
- Page 7 To jump-out safeties install a wire connecting terminal 1 to terminal 2. See Figure 4. FAMCO recommends the installation of an indoor low limit with all installations. This addition greatly expands both the functionality and energy savings delivered by the system. Figure 4 also shows the installation of an indoor low limit thermostat.
- Page 8 Installation Manual Essentials 120213 INSTALLING THE FURNACE CABLE (FIGURE 2) Furnace Board Before Before Condensing Unit Yellow White Green To Thermostat > Furnace Board After (Step 1 & 2) Step 1 efore Condensing Unit Furnace Cable Yellow Yellow Green White Green <...
- Page 9 Installation Manual Essentials 120213 STEP 3: Plug the other end of the furnace cable into the logic box connection marked “FURNACE.”...
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Page 10: Set Screw
Installation Manual Essentials 120213 3-GANG OR SURFACE MOUNT OPTIONS (FIGURE 3) 3-GANG/FLUSH SURFACE SET SCREW... - Page 11 Installation Manual Essentials 120213 TESTING Testing Damper CAUTION: (If it is below 45 degrees F outside and the furnace has been running, it is recommended that the furnace be turned off and allowed to cool before introducing outdoor air into the system.) Turn on the HVAC system at the breaker box.
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Page 12: Troubleshooting
Verify status on LEDs. Once this is verified go ahead and set the outdoor thermostat to the setting desired by the occupant. FAMCO recommends 70 – 72 degrees. Unless you are installing optional equipment, you are done with installation. - Page 13 Installation Manual Essentials 120213 All components of the IAQ Economizer are tested before shipping.
- Page 14 Installation Manual Essentials 120213 FIGURE 4 Recommended Optional Control Terminations OUTDOOR LIMIT DEVICE THE INDOOR LOW LIMIT OPTION ALLOWS OWNERS TO USE ONE SETPOINT FOR (NORMALLY CLOSED - DRY CONTACT) MORE EXPENSIVE COMPRESSOR BASED COOLING, WHILE HAVING A COOLER SETTING FOR LOWER COST VENTILATION COOLING WHEN AVAILABLE. VISIT FAMCOIAQ.COM/MANUALS FOR ADDITIONAL CONTROL OPTIONS JUMPER SOME STAT MODELS...
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Page 15: Optional Functions
Installation Manual Essentials 120213 FAMCO IAQ Economizer OPTIONAL FUNCTIONS (INSTALLATION DIAGRAMS ARE AVAILABLE AT famcoiaq.com/manuals Installation of optional devices has been kept separate from the main portion of the install directions because optional functions are numerous, and will vary from install to install. - Page 16 Multiple devices need to be wired in parallel. If multiple devices are to be wired, contact FAMCO for maximum amperage recommendations. HRV - Power is supplied to this terminal any time the system is initiating an outdoor air introduction.
- Page 17 Installation Manual Essentials 120213 AUXILLIARY CONNECTIONS (FIGURE 5) LIMIT EXT START 1 EXT START 2 9 24VAC PWR OUT 10 COMMON 11 ECON SIG 12 COMMON HRV INTRUPT 13 NOT USED...
- Page 18 Installation Manual Essentials 120213 SEQUENCE OF OPERATIONS (FIGURE 6) SYSTEM ON EXT START 1 = ON CONTINUOUS LIMIT CONDITIONS MET EXT START 2 = ON OUTSIDE TEMP < SETTING T2 CALLING STAT CALLING OVRD (LOGIC BOX) OPEN DAMPER(S) STAT CALLING non-ECON DAMPER POSITION DAMPER CORRECT OPERATION...