Operating instructions
12/23/2011 15 EI711A
Operation Indicators
Front Panel LED’s
- Hi-limit – when the hi-limit probe (automatic reset or manual reset) opens this top red LED
is on. The electric elements will be interrupted via a safety relay circuit whenever this HL
LED is illuminated.
- PWR ON – indicates good fuse and 24-volt power source from the furnace terminal block.
- Mode – this LED provides two sets of information:
Off, standby mode (SB)
On, electric heat mode
Pulsing, cooling mode
Override Switch – the front panel slide switch (very similar to standard DFC) is a direct hardware
disabling of any WarmFlo and electric elements functions. The room thermostat heat call wire or
function is directly controlling the fossil fuel or gas furnace. This function can also be on a remote
switch, see previous statement for “SBSW” tab.
WARNING
THIS FRONT PANEL MANUAL OVERRIDE SWITCH IS A HARDWARE DIRECT TO GAS
FURNACE FUNCTION. THUS THERE ARE NO BLOWER PURGE CYCLES. IF THE ELECTRIC
ELEMENTS ARE ON AND HOT WHEN SWITCHING TO OVERRIDE AND IMMEDIATELY
ALLOWING THE GAS FURNACE, OVERHEAT ON THE ELECTRIC ELEMENTS AND
POTENTIAL ELECTRO-MATE MANUAL RESET IS POSSIBLE. THIS FRONT PANEL
OVERRIDE SWITCH SHOULD ONLY BE ACTIVATED WHEN THERE IS NOT A ROOMSTAT
HEAT CALL.
Note: This switch must be in the normal position during cooling.
Strip Heat Disable – To maximize heat pump system energy efficiency and preventing “accidental”
unnecessary resistant strip heat when it is not required, this WarmFlo Select disables or locks out strip
heat elements based upon outdoor temperature.
Heat Pump
Stage 1 - 50F
Stage 2 - 50F
Stage 3 - 36F
Stage 4 - 34°
Sensor Monitor Indicators – in addition to using WarmFlo Analyzer or WarmFlo PC software to
readout the temperature sensors, there is a built-in go/no-go type monitor visible on the green PWR ON
second from the top LED.
- If there is detection of miswired or totally inoperative sensor, this LED has a blinking or
pulse mode. By checking the pulsing pattern, the appropriate sensor can be identified.
- OT sensor - 100 ms blink every second
- ST sensor - two, 100 ms blinks every second
- Both bad - ½ second on, ½ second off, alternating.
Warning: OT sensor required for HP. You cannot disconnect to attempt a sensor bypass.
Inside Power Supply Converter Board (top center inside cabinet) – the LED is illuminated whenever
there is a T-call and the power supply is in correct, working order.