5
CHECKING HIGH LIMIT THERMAL SWITCHES
After 10 minutes of operation at full capacity, block the supply or return air
opening. Record the supply air temperature at a point that is not exposed to radiant
heat from the elements. The elements must shut down, before the temperature
exceeds 93°C ( 200°F )
INSTALLING A HEAT PUMP WITH AN SE SERIES ELECTRIC
FURNACE.
You may require a kit to prevent the simultaneous operation of the furnace
elements and the heat pump. Refer to the instructions provided with the thermostat
or the “fossil fuel” type kit for proper wiring of the furnace and the heat pump.
Fossil fuel kit is not required if A/C Coil is installed in return air plenum.
DUCT
Duct work for furnaces up to and including 20KW can be installed with “zero”
clearance to combustibles
THERMOSTAT WIRING
The thermostat shall be installed on an interior wall where it will not be affected
by drafts, sun light, warm air diffusers, fireplaces etc. Follow the instructions that
are supplied with the thermostat.
1 stage – electric heating only
2 stage – electric heating only
1 stage – thermostat with outdoor control for 2 stage function, electric heating
only
2 stage thermostat, electric heating and air conditioning
1 Stage Thermostat, Electric Heating Only
When a digital thermostat is used, set this function to Gas or Oil Furnace.
ELEMENT RELAY SUBSTITUTION
TURN POWER SUPPLY OFF PRIOR TO PERFORMING THIS PROCESS.
THIS PROCESS TO BE PERFORMED BY QUALIFIED TECHNICIAN
ONLY!
WARNING
, FAILURE TO FOLLOW PROPER PROCEDURES MAY
RESULT IN SERIOUS HARM OR DEATH.
Included in the Alpha controller design is the ability to select alternate element
relay use in the event of original relay failure.
This option permits the alternate selection of up to two (2) relays.
Refer to fig.1 to determine the correct dip switch settings to select alternate relays.
Selections are made at the 4 position dip switch on the controller labeled as SW1.
This switch is located immediately behind the W1/W2 thermostat connections.
To toggle the switch down towards the switch identifying numbers on the control,
Summary of Contents for ALPHA
Page 9: ...9 Fig 2 MAIN CONTROL BOARD ...
Page 11: ...11 Fig 4 ...
