Installation manual

Interlocking the ERV to an Air handler/Furnace Blower
Connecting the ERV as illustrated will ensure the Air
Handler/Furnace Blower Motor is operating whenever
the ERV is ventilating.
The ERV must be interlocked to the Furnace/Air
Handler with a Simplified Installation (Return/Return
Installation) and should be interlocked with a Partially
Dedicated Installation.
Wire
Connector
Furnace Terminal Strip
Furnace
Thermostat
HRV Terminal Block
Operating the ERV without a Main Control and Adding Dry Contact Controls
CAUTION
Consideration should be given to competing
airflows when connecting the ERV in
conjunction with an Air Handler/Furnace
Blower system.
Setting “Standby” when using a Main Control
CAUTION
Building codes in some areas require
“fully-off” functionality. Check with
your local building authority before
modifying the unit to “standby -off”.
Unintentional operation of the ERV by
the end user may occur if the unit is
modified from “fully-off” to “standby-
off”.
Select the OFF position on the Main
Control to turn the ERV “fully-off”. Timers
and other controls do not function when
the ERV is turned OFF.
The “fully-off” feature can be modified to
“standby-off” by adding a jumper on the
Terminal Block between 2 (ON) and
3 (RED).
“Standby” can also be achieved by setting
the main control to the ON position and
selecting speed 0*. Timers and additional
controls will initiate high speed ventilation
when activated.* Speed 0 is not available
on all controls.
The Terminal Block
(located on the ERV
A jumper must be in place between 2 (ON)
and 3 (RED) on the Terminal Block to
activate the ERV for timers and/or dry
contact controls.
Adding Dry Contact Controls
Low Speed - A jumper between 2 (ON) and
1 (LOW) initiates low speed ventilation.
High Speed - A jumper between 2 (ON) and
6 (HI) initiates high speed ventilation.
Dehumidistat - A dry contact for a
dehumidistat is connected between 2 (ON)
and 10 (BLK).
The Terminal Block
(located on the ERV
The ERV must have a Jumper in place
between 2 (ON) and 3 (RED) on the
Terminal Block when installing the unit
without a Main Control.
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