Model ER80M
::
ultimateair.com
::
Athens, Ohio 45701 :: 740.594.2277
Wiring to a Furnace/AC Air Handler Continued…
When integrating the UltimateAir ERV with existing forced air systems, it
may need to operate in conjunction with the furnace/AC air handler.
1.
On the Furnace, locate the 24 VAC (low voltage) which activates when
the Furnace blower is ON. Furnace outputs are generally marked G for
“Go/Run” and C for Common; refer to the particular furnace manual for
details.
2.
REMOVE jumper JP4
, located just under the furnace F1 & F2 input
terminals on the UltimateAir main board.
3.
Run two wires
(20/22GA) from the furnace to the input terminals on the
UltimateAir ER80M main control marked
F1
(24 VAC Line) and
F2
(24
VAC common). The UltimateAir ER80M will now run only when the
furnace air handler is ON.
4.
Move Jumper J6
from its default position (‘0’) to position ‘1’. This sets
the minimum airflow to 70 CFM. If the airflow range is left at the
default settings, the ER80M may not be able to overcome the static
pressure of the furnace or AC air handler.
Note- When wired to run with the furnace blower, the ER80M will run at the
Flow Speed Set on the ER80M Wall Dial. The green light on the Wall Dial will
flash when the furnace blower is not running.
Wiring to Thermostat or Dry Contact Switches
This control scenario will utilize the UltimateAir ER80M internal 24Vac
transformer power for ON/OFF function via any external contact switch.
On the UltimateAir ER80M 3Motor Main Board,
REMOVE jumper JP4
,
located just under the Furnace connections F1 &F2. Run one Wire from the
LINE Terminal to the Dry Contact Device you want to use. Run a second
wire back from the Dry Contact Device to the UltimateAir ER80M
F1
Terminal. Run a second wire from F2 to Ret3 to complete the circuit.
