Steffes 1003 - Manual (Page 29)

3. Anticipated Peak (Pre-Peak) Mode: See Figure 22
This mode is used only in specialiazed installations.
You may not have this option enabled on your
heating unit.
This mode of operation is used in situations where the
power company sends a signal to the equipment prior
to the possibility of a control (on-peak) period. Once
the signal is received, the room heating unit will
charge to a level needed to satisfy the heating require-
ments of the area during the control period.
• MODE digit displays an "A".
• TEMPERATURE digits display actual room
temperature.
• During this mode, the heater is allowed to store
heat in the brick core. If the brick core charge level
is insufficient (based on the manual charge setting
or the automatic charge control outdoor tempera-
ture information), the heating elements will be on.
Heat will be stored in the bricks to maintain the
appropriate charge level. Once the appropriate
brick core charge level is reached, the heating
elements will automatically turn off.
• The heater can be set so that the damper opens as the room thermostat calls for heat, or it can be
set so that it cannot come on at all during an anticipated peak period. The heater can also be set
so that there is limited damper operation during this time. Under some situations, limiting the
amount of damper operation or not allowing it to open at all, may be necessary to ensure that the
room heating unit will have an adequate amount of heat stored in the bricks for an upcoming peak
control period.
MODE TEMPERATURE
ROOM
SETTING
STORAGE
SETTING
SERVICE
т с
M
STEFFES
FIGURE 22
Control Panel Display
Adv Adv Adv Adv Advanced Heater Operation anced Heater Operation anced Heater Operation anced Heater Operation anced Heater Operation
(cont'd) (cont'd) (cont'd) (cont'd) (cont'd)
28
Comfort Override (power company permitting)
This feature is used to achieve room comfort in the
area where the heater is located if the stored heat in
the brick core has been depleted. If the power
company permits the use of this feature, it will allow
the heating elements to come on during a peak mode.
This occurs only if the room temperature falls a
preset number of degrees below the room tempera-
ture set point and the stored heat in the brick core
has been depleted. Freeze Protection (power company permitting)
This feature is used to maintain a temperature above
freezing in the area where the heater is located. If
the power company permits the use of this feature,
it will allow the heating elements to come on during
a peak mode. This occurs only if room temperature
falls below the freeze protection temperature set
point as programmed in the heater.
Freeze protection and peak override options may not be available in your area. Please
consult your power company if you are unsure of whether these options are available to you.
NOTE