Steffes 612EXT Owner & Installers Manual - Manual (Page 4)

CORE CHARGING SCHEDULE
TABLE 1
CHARGE LEVEL CORE TEMPERATURE
S SERIES EXT SERIES o F (Nominal)
KNOB SETTING SWITCH SETTING
1 Low 500
2 Med 900
3 High 1350
A. SAFETY TIPS
1. Do not allow objects to fall between the room heating unit and the wall.
2. Do not place anything on top of the room heating unit. Protection from damage due to objects being placed on
the top of the unit may be reduced by installing a Steffes heat shield cover.
3. Do not stick any objects through the air discharge grill.
4. As is true with all heating appliances, materials that may produce explosive or flammable gases must not be
used or stored near the room heating unit!
5. Repeated illumination of the service light indicates a need for immediate service by a qualified technician.
Refer to Table 2 and the Maintenance and Cleaning section of this manual for more information on this safety
device.
6. Do not energize unit while disassembled or without ceramic heat storage bricks in place.
7. Be sure there is always enough distance from the heater to any object such as the wall, shelves, curtains,
furniture, bed covers, or etc. The minimum distances any object can be placed by the heater are specified in
the Clearance Requirements section of this manual.
B. CONTROL STRATEGY
1. GENERAL INFORMATION
Steffes ETS room heating units utilize off-peak electricity available during those times of the day or night when the
power company can supply you with electricity more economically. By using this off-peak electricity for heating, the
power company may offer you a special incentive such as a reduced electric rate, an off-peak heating rate, a time-of-use
(TOU) rate, or monthly credits on your heating bill.
When off-peak hours are available, the room heating unit converts electricity to heat which is then stored in its
ceramic brick core. The ceramic brick core of the room heating unit can store heat at varying levels depending upon
outdoor temperature, owner preference, utility peak conditions, and the requirements of the space being heated. This
stored heat becomes available for space heating needs as determined by the heater's room temperature thermostat.
Heating is accomplished radiantly and by thermostatically controlled fans. A small amount of radiant heat is given off
by the heating unit's cabinet. When the room thermostat senses a need for heat, the heating unit's fan(s) are energized; and,
heat is extracted from the ceramic brick core to maintain a constant, comfortable, room temperature.
2. OPERATION
CAUTION: This unit may be connected to more than one branch circuit.
Disconnect all branch circuits before servicing.