Steffes HPB22 Owners Manual - Manual (Page 6)

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•OUTDOOR AIR SENSOR OVERRIDES
Manual Override
Core charge levels are normally determined by the master controller's outdoor air temperature sensor. This unit
comes equipped with a switch that can be used to override the outdoor air temperature sensor (See Figure 1). This
override switch has three positions: AUTO, HIGH, LOW.
-AUTO - core charging is controlled by the outdoor air temperature sensor (See Table 1).
-HIGH - core will take on a Level 3 charge during off-peak periods regardless of outdoor air temperature.
-LOW - core will take on a Level 1 charge minimum during off-peak periods regardless of outdoor
air temperature.
Single Cycle On-Peak Override (Utility Regulations Permitting)
When permitted, a single cycle override is provided for use during on-peak hours, enabling a Level 1 core charge.
The override is initiated by the "START" toggle switch of the override switch pair (See Figure 1) and may be cancelled
by the "CANCEL" toggle switch. The override function will automatically cancel when the control period ends. (For
further information on this override capability, contact your electric utility company.)
B. MAINTENANCE/CLEANING
General cleaning of the booster's sheet metal cabinet should be conducted at the owner's discretion. No other routine
maintenance is required.
CAUTION: As is true with all heating appliances, materials that may produce
explosive or flammable gases MUST NOT BE USED OR STORED
NEAR THE BOOSTER.
CHARGE CONTROL PANEL
(FIGURE 1)
UNIT CIRCUIT BREAKERS
(FIGURE 2)