7
ComfortMAX
The Comfort Max feature is designed to provide automatic system BTUH output sizing when operated by a single stage thermostat.
When using a 2 stage thermostat, the 2nd stage of the thermostat heat call takes priority.
To activate The Comfort Max feature, remove the jumper wire across W and W2 at the thermostat terminals on the furnace and set
the Comfort Max switch on the furnace to ON. This will provide automatic BTUH sizing of the furnace up to the maximum output
of the furnace.
“ComfortMax is a unique feature of the 9400i Electric Furnace Control. Using a single-stage heating thermostat the control will
determine the ideal number of elements to engage on each heating cycle. Comfort is maximized by ensuring that the perfect level
of heat is supplied to satisfy the call for heat in regular intervals. On the coldest of days all available heating elements will be
activated, but on those milder days only a few will come on, thus finding the perfect balance between energy use and homeowner
comfort”
The ComfortMAX Option for Heating is selected by a switch on the front panel of the appliance. When the switch is activated
during a call for heat the control will only activate the number of elements that are estimated to be needed to satisfy the call for heat
within a 13 to 18 minutes.
If the call for heat is satisfied in less than 13 minutes the number of heating elements activated in the next cycle will be reduce by one.
If the heat cycle has been activated for more than 18 minutes an additional heating element is energized and this number of elements
will be energized on the next heating cycle.
If the heating cycle is still not satisfied after 23 minutes then all remaining heating elements are energized and a further heating
element is added to the next heating cycle.
Fig 3
Warning
Do not use these circuit breakers as a means to turn the power off to the furnace.
Prior to removing any of the furnace access panels ensure that the power has been safely
Turned off at the main electrical disconnect switch.
Failure to do so may result in serious bodily injury or death.
FAN MOTOR CIRCUIT BREAKER
LED
HEATING ELEMENT CIRCUIT BREAKERS
CONTINUOUS FAN
COMFORT MAX
