Advertisement
Standby Override – The front switch provides a very effective override switch to fossil fuel furnace
capability. This is a hardware override switch and does not depend upon the WarmFlo board,
microprocessor, electronics, etc. Typically this takes the place of dual fuel heat pump thermostat
"emergency lever" function.
Remotely located standby override switch – on the left side of the I/F board is a "SB" tab. Using an
external switch between this "SB" tab and a common tab provides the same function as the front override
switch. Whichever switch is in the up or override position takes priority. In other words, they both need
to be in the down position during cooling.
Note: All override switches must be in normal or electric position during cooling.
Load Shedding, Electrical Service Entrance Not Adequate - When using the 10 kW Electro-Mate on a
100-amp service with other major appliances, there are very simple techniques to make sure the 100-amp
service is not overloaded. These are based upon inserting one 240 wire from either or both the electric
dryer/electric range through a small donut CT. This detection of appliance turn-on immediately drops out
a secondary 5 kW load. Both techniques have the necessary input detection delay window to compensate
for pulse modulation stove top burners.
-
EM-LV104L* – Order EZ-Mate plenum heater with load shed capability – 5 kW firm, 5 kW
shed.
-
PI-ØA1DYMO – Sensor CT (1 or 2, ½" donut), 4 wire low voltage connection to standard
Electro-Mate or WarmFlo II/ Electro-Mate – drops 1 stage or typical 5 kW (reference
drawing PH510).
-
PI-Ø31DYHO – Sensor CT ( 1 or 2, ½" donut), service panel wiring, drops electric water
heater or any 25-amp circuit appliance/electric heater.
Comment: Also see the "WarmFlo Information" document (HD320) included with this manual.
Sensor Temperature Calibration - Both remote sensors are digital electronic and factory calibrated.
Normally these do not require field calibration or verification. However, if sensor temperature error is
determined, there are two field calibration techniques. Proceed with extreme caution.
1. The outdoor sensor can be calibrated with ice (32°F). Notice a small push button next to the
sensor terminal block, with the sensor at 32°F, push and hold for approximately ten seconds.
When green LED "blinks" at you, release and now the outdoor sensor is set at 32°F.
Caution: This is not a temperature checking situation. If you proceed with this function, the
sensor automatically goes to 32°F.
2. Use WarmFlo II Analyzer test set or purchase special PC software disc and PC serial port cable.
These plug-in devices allow direct readout of both temperatures, allows a visual determination of
WarmFlo II internal temperature settings, and can be used to offset either temperature sensor for
troubleshooting and demonstration purposes. This is especially valuable during summer
installation. Call factory and order test set device.
Outdoor Sensor (OT) Location – direct sunlight has a definite affect on sensor temperature reading.
The sensor white tube must be "shadowed" from direct sun rays.
Troubleshooting/Repair Helps
1. This WarmFlo II controller contains several interference suppression components, but as an electronic
logic product, unpredictable and unusual transients or interferences may sometimes cause strange results.
If the WarmFlo II controller is "acting strange", one immediate step would be power down reset. Simply
turn off the 24-volt source power (probably furnace or air handler circuit breaker), when the green LED
goes out, count to 10, and re-energize power supply.
01/10/2008
OPTIONAL ACCESSORIES
TROUBLESHOOTING
16
HI321
Advertisement
