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16 INTERLOCKING THE HRV
Interlocking the HRV to a Furnace/Air Handler
Connecting the HRV as shown below will ensure that the air handler/furnace blower motor is operating
whenever the HRV is venting.
• The HRV must be interlocked to the furnace/air handler with a Simplified Installation (Return/Return
Method).
• The HRV should be interlocked to the furnace/air handler with a Partially Dedicated System Installation.
• Consideration should be given to competing airflows when connecting the HRV in conjunction with an air
handler/ furnace blower system.
Air Handler/Furnace Blower
Connections with TB04 Terminal Block
Air Handler/Furnace Blower
Connections withTB01 Terminal Block