Steffes 612EXT Owner & Installers Manual - Manual (Page 11)

6. After loading Row 3, insert a
row of bricks on top with the
indentation facing down.
Continue with Row 4 starting
with a lower brick followed by
the upper brick.
7. Return the front aluminized
steel (8) to position.
8. Carefully replace 1/2" blanket
insulation (5) making sure all
edges fit snugly.
9. Install front panel (4) using hex
head sheet metal screws at lower edge.
10. Vacuum lower portion of the unit.
11. Make sure fan impellers (53) turn freely.
12. Manually open air mixing damper by depressing
bimetallic coil (39) to check for freedom of operation
and absence of debris.
13. Reassemble the unit (See Figure 6).
14. Complete Owner Registration Card and return to Steffes ETS, Inc.
(NOTE: Serial number information can be found in several places:
1.
Unit shipping box
2. Label on lower right side panel of unit
3. Blue and Silver listing label on bottom panel inside the fan compartment.
4. The Owner Registration Card provided with the manual has been labeled with
unit serial number information at the factory.)
•ROOM THERMOSTAT INSTALLATION
EXT units come standard with an on-board low voltage room temperature thermostat mounted on the front panel.
For units not equipped with on-board thermostat (S or EXT series), mount room thermostat on an interior wall near the
room entrance at a height of five feet from floor level. Choose location to ensure thermostat will be unaffected by drafts,
sunlight, or other sources of heat or cold.
Line or low voltage thermostats are available. If line voltage is desired, order Steffes thermostat #1300000. If low
voltage is desired, order Steffes low voltage thermostat item #1300002 which provides low voltage control of fan operation;
however, low voltage contact is required for element control. Steffes thermostat, item #1300007 has a built in clock which
provides low voltage control of element charging and fan operation with no other element control device required. On S series
units, both low voltage thermostats must be used in conjunction with the Steffes low voltage control module, item #1300004.
GRILL
GRILL MUST
ATTACH
TO FRONT PANEL
AS SHOWN
SERVICE
LIGHT
GRILL ATTACHMENT
FIGURE 6