12
In order for any appliance to work properly it must be set
up and tested by a knowledgeable technician.
The following conditions must be met prior to start-up
1. Blower wheel rotates freely inside its housing.
2. Wiring connections are tight.
3. Water is sitting in the "P" trap below the HRV core.
4. All duct and pipe connections are sealed.
5. Front access door is on tight.
Once all of the necessary connections have been made,
the Clean Air Furnace Start-Up Procedure is as follows:
1. Turn on power supply to Clean Air Furnace. Caution:
The blower will start running at a lower speed.
2. Switch the room thermostat to heat. The thermostat
should be set higher than the current room temperature
in order to energize the unit and commence the heating
cycle.Verify heat cycle starts.
3. Set room thermostat at desired temperature setting.
4. Switch fan to manual at the thermostat so the unit will
run at high speed in order to perform the balancing pro-
cedure on the ventilation section.
Note: For ECM motors, refer to note located on this
page regarding high speed fan operation.
5. After balancing the ventilation according to instructions,
set the thermostats fan switch to "auto". On "auto" the
fan will run continuously at a low speed if the ventila-
tion switch (fig. 6) is in the continuous mode, until
heating or cooling is called for and then will switch to a
higher speed. On "manual" the fan will run at high
speed continuously.
NOTE: Continuous low speed can be turned ON/OFF
with the ventilation switch, (fig. 6).
NOTE: Continuous high speed can be obtained by
switching thermostat fan switch to manual/on.
NOTE: For models with the ECM blower motor. Low
speed fan is controlled by the thermostat fan
switch (R and G terminals).
High speed blower operation is obtained by
making a dry contact closure across R and the
Orange wire from the ECM motor.
Start Up Procedure
NOTE: Downflow models incorporate a flow
switch to verify blower operation and air-
flow. If airflow is not sensed or the
pressure switch is blocked, the electric
heating elements will NOT start. NEVER
override or disable safety switches. If air-
flow is blocked or too low, the airflow
MUST be diagnosed and corrected.
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