Fantech VHR704R Installation Manual Download Page 1

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IMPORTANT -  PLEASE READ THIS MANUAL 

BEFORE INSTALLING UNIT

VHR704R

Heat Recovery Ventilator

Installation Manual

INSTALLATION, OPERATION AND MAINTENANCE MANUAL

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 piec-
es of equipment should be confirmed by measuring the airflow of the Heat Recovery or Energy 
Recovery Ventilators.
It is always important to assess how the operation of any HRV/ERV may interact with vented 
combustion equipment (i.e. Gas Furnaces, Oil Furnaces, Wood Stoves, etc.). 

NEVER - 

install a ventilator in a situation where its normal operation, lack of operation or par-

tial failure may result in the backdrafting or improper functioning of vented combustion equipment!!!

Your ventilation system should be installed in conformance with the appropriate provincial or state requirements 
or in the absence of such requirements with the current edition of the National Building Code, and / or 
ASHRAE’s “ Good Engineering Practices”.

Summary of Contents for VHR704R

Page 1: ...asuring the airflow of the Heat Recovery or Energy Recovery Ventilators It is always important to assess how the operation of any HRV ERV may interact with vented combustion equipment i e Gas Furnaces...

Page 2: ...ncurred in the use of the ventilation system Fantech is not responsible for providing an authorized service center near the purchaser or in the general area Fantech reserves the right to supply refurb...

Page 3: ...e UL 94HF MOTORS Two 2 German manufactured factory balanced ebm motors with backward curved blades Motors come with permanently lubricated sealed ball bearings to guarantee long life and maintenance f...

Page 4: ...ps Watts 115V 60Hz 0 40A 40W 3 plug in power cord w 3 prong plug Continuous ventilation mode of supply and exhaust airstreams 10 254mm of clear ance is recommended for removal of core Pa in wg L s cfm...

Page 5: ...p should be made in the drain line This will prevent odors from being drawn back up into the unit MOUNTING EASY WALL MOUNT LOCATION The HRV must be located in a heated space where it will be possible...

Page 6: ...ropriate port on the HRV The insulation should remain full and not be compressed The outer liner which acts as a vapor bar rier must be completely sealed to outer wall and the HRV using tape and or ca...

Page 7: ...recommended Galvanized ducting from the HRV ERV to the living areas in the house is recommended whenever possible although flexible duct can be used in moderation when necessary Warning The VHR 704R s...

Page 8: ...n an enclosed room with spillage susceptible combustion appliances Partially Dedicated System Stale air drawn from key areas of home bathroom Fresh air supplied to main living areas via the forced air...

Page 9: ...rap is full of water In cold weather check that HRV is defrosted and not in defrost mode Turn HRV fans on high speed Step 3 Taking measurements Ensure measuring gauge is level and secure Magnehelic or...

Page 10: ...ring the winter months Clean Core and Filters Every 3 6 Months Unplug unit before doing any repairs or maintenance a Open access door b Carefully grip handle of core and pull out Core will slide out o...

Page 11: ...tire line of SHR VHR series Heat Recovery Ventilators comes equipped with Fantech s new electronic uni control board which offers a wide variety of features making it the ultimate ventilation control...

Page 12: ...you Adjust the control when needed PRACTICAL TIPS All controls are low voltage 18 to 24 gauge wire is recommended OPTIONAL REMOTE CONTROLS OPERATION CONT D NOTE A dehumidistat is ideal for use in ene...

Page 13: ...Locate the grilles high on the walls or under the baseboards install ceiling mounted diffuser or grilles so as not to directly spill the supply air on the occupant eg Over a sofa Turn down the HRV sup...

Page 14: ...2 wires Dehumidistat On Off 4 wires Mechanical Crank Timer 2 wires and or and or 1 only Air Quality Sensor CUR SW DEHUM N C N O TIMER EDF COM FURNACE INTERLOCK IN COM EDF5 or EDF2 not shown EDF1 RTS3...

Page 15: ...TIMER RED FURNACE INTERLOCK COM PC SW3 COM NO ON J7 J5 J6 J4 J3 ON OFF ON ON ORANGE ORANGE GREEN STAND BY MED BROWN BROWN GREY TR1 RED YELLOW BLACK WHITE BLUE SW1 BLACK T P DAMPER MOTOR LOW RED BROWN...

Page 16: ...rgizing the R and G termi nals at the furnace has the effect of energizing Y at the thermostat and thereby turning on the cooling system If you identify this type of thermostat you must use the Altern...

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