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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.

 

See “SYSTEM REQUIREMENTS” on the next page. 

b.

 

Access to existing ductwork, and ability to install components as recommended?  
The damper box should be installed ALL return air to flows through the damper 
box on its way to the blower.  This may require some ductwork reconfiguration. 

2)

 

Determine installation location for outside air intake, outdoor air thermostat, Damper 
Box, and Logic Box. 

a.

 

There are two options for Logic Box installation:  3-gang/flush wall, or surface 
mount.  The surface mount option is provided for retrofit garage and mechanical 
room installs where wall cavity wire pulls may not be possible or would be cost 
prohibitive. 

3)

 

Determine if the existing HVAC system is functioning properly before beginning 
installation. 

4)

 

Place damper box in the location where it will be installed. 

5)

 

Install outside air intake louver, transition, and connect flex duct to transition. 

6)

 

Connecting the flex to the appropriate port on the damper box. 

7)

 

Cut, Adjust length, and connect return duct to the damper box. 

8)

 

Connect damper cable to the damper box quick connect plug and run the cable to the 
Logic Box install location. 

9)

 

Install the transformer and run the Power Cable to the install Logic Box Location. 

10)

 

Terminate the Furnace Cable to the existing furnace board and run the other end to the 
Logic Box install location. 

11)

 

Install the outdoor air thermostat, terminate wire to the thermostat, and run the other 
end to the Logic Box install location. 

12)

 

Connect all cables to their appropriate terminations on the Logic Box, and secure logic 
box. 

13)

 

Turn on power to IAQ Economizer and HVAC system. 

14)

 

Test system for proper operation.  You should observe the physical operation of the 
damper at least once to insure it is stroking properly.  You can do this by holding open 
the butterfly damper and watching damper movement and seal. 

 
 
 

Summary of Contents for ECONOMIZER BREATHE SMARTER

Page 1: ...Installation Manual Essentials 120213 BREATHE SMARTER TM PATENT PENDING...

Page 2: ...g HVAC system is functioning properly before beginning installation 4 Place damper box in the location where it will be installed 5 Install outside air intake louver transition and connect flex duct t...

Page 3: ...TANT Turn off the HVAC system at the breaker box before beginning installation Do not use the existing furnace transformer to power the IAQ Economizer The furnace transformer is not sized to support p...

Page 4: ...CAN BE EASILY ACCESSED BY OCCUPANT OUTSIDE AIR TEMPERATURE THERMOSTAT EXISTING FURNACE BOARD OUTSIDE AIR FLEX DUCTWORK ADDED NOT PROVIDED IN KIT IMPORTANT MINIMIZING TURNS AND BENDS IN DUCTWORK IS CRI...

Page 5: ...duct from the intake transition to the FRESH AIR port on the Damper Box Cut the main return duct in a location that will allow re connection to the damper box The damper box will replace a section of...

Page 6: ...VAC only Other sources of power will damage the unit DO NOT power the unit with power from the AC unit The furnace transformer will not have sufficient capacity to provide for the IAQ Economizer Provi...

Page 7: ...T cable are terminated correctly before plugging it into the Logic Box Connect the Power Cable to the Logic Box IMPORTANT There is one auxiliary connection that is required for the Logic Box to functi...

Page 8: ...Step 1 2 2 efore Furnace Board After To Logic Box To Thermostat Condensing Unit Yellow Yellow Green Green White Red Condensing Unit Yellow Green Red White To Thermostat Condensing Unit Yellow Yellow...

Page 9: ...Installation Manual Essentials 120213 8 STEP 3 Plug the other end of the furnace cable into the logic box connection marked FURNACE...

Page 10: ...Installation Manual Essentials 120213 9 3 GANG OR SURFACE MOUNT OPTIONS FIGURE 3 3 GANG FLUSH SURFACE E SET SCREW...

Page 11: ...use the Override OVRD switch to initiate an air introduction If the Yellow light went out before you switched the OVRD switch and the Red light lit wait 90 seconds The Green light should light indicat...

Page 12: ...pen the damper box as expected there are four items that should be checked 1 IAQ Economizer switch may be OFF 2 LIMIT Switch is OPEN or no jumper is installed 3 Outdoor thermostat setting requirements...

Page 13: ...Installation Manual Essentials 120213 12 All components of the IAQ Economizer are tested before shipping...

Page 14: ...NSFORMER CAPACITY IS 50VA LOGIC BOX TRANSFORMER TYPICALLY CONSUME LESS THAN 20VA DEVICES USING PWR OUT CANNOT EXCEED 50VA TOTAL TRANSFORMER CAPACITY EXTERNAL DEVICES PROVIDING A POWERED SIGNAL TO THE...

Page 15: ...using AUX START 1 Typical Uses Outdoor air low or high limit outdoor humidity or dew point limit Multiple devices need to be wired in series T2 Input used to allow a different setpoint to call for ec...

Page 16: ...ction is allowed Multiple devices need to be wired in parallel POWER Power simply provides 24 VAC that can be used to power other control devices used with the system The top terminal is 24VAC the bot...

Page 17: ...Installation Manual Essentials 120213 16 AUXILLIARY CONNECTIONS FIGURE 5 LIMIT T2 EXT START 2 PWR OUT HRV INTRUPT EXT START 1 13 NOT USED 12 COMMON 11 ECON SIG 10 COMMON 9 24VAC 8 7 6 5 4 3 2 1...

Page 18: ...LIMIT CONDITIONS MET SYSTEM ON STAT CALLING EXT START 2 ON DAMPER CORRECT OPEN DAMPER S FAN ON COMPRESSOR ON YES YES YES YES YES YES YES NON ECON SUPPORTED COOL CALL YES ERROR INDICATION NO DAMPER PO...

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