Operating instructions

02/14/2006 3 NI806
General Comments
Upflow/Downflow/Horizontal
The arrangement of refrigerant coil, hydronics coil, and built-in electric elements need to follow specific
air direction or airflow rules, but the orientation of this Electric Furnace is not critical.
For upflow and horizontal standard air conditioning applications, the A-coil is mounted at the blower
outlet with field provided plenum or manufacturer’s case coil.
All models contain GE ECM™ Series 2.3 blower motors. The special Electro Industries interface board
allows hookup for heat/cool conventional or basic heat pump room thermostat. Blower speed setup and
WarmFlo sensor control are separate for cooling and heating (unique).
The ECM™ motor provided in this unit has many features not available in a standard motor.
- Improved efficiency
- Constant CFM
- Soft start and stop
- Better humidity control
The provided ECM™ motor contains permanently sealed bearings and does not require oiling.
Utility Load Control
Provisions also included for the Utility Receiver to interrupt compressor and WarmFlo or strip heat. No
provisions for dual heat, add EE-5046.
Side by Side, with Gas Furnace or Other Dual Heat Arrangements
Add-on dual heat controller HP-5046 can simplify the wiring for dual heat.
For side by side ducting, a motor operated damper is required to isolate the return air between two
blowers. The operation of this motor damper can be controlled from the HP-5046.
Installation Setup
There are specific peg jumpers relating to cooling tons, heating kW, heat pump reversing valve logic, and
thermostat type. These must be properly evaluated and selected to match each installation.
The “setup or programming” section has all the detailed instructions and selection tables.
The WarmFlo controller also has various dial switch selections relating to duct temperature set point,
minimum warm air set point, HP compressor ODT shutoff temperature, and ramp up efficiency dial.
These are standard WarmFlo technology and setup requirements, if you’re not familiar with WarmFlo
controller study the HD320 WarmFlo information document, also in this package.
NOTICE: When changing any setup jumpers, power down and up. ECM™ motor needs 240V power
and control power removed to reset and reread specific control lines. Open CB number 1 for 10 seconds.
Operation Instructions
The “Operation Indicators” section contains information relating to LED monitor lights, thermostat
sequences, etc.