4. Adjust the chain on the draft control lever until it is just
snug but the damper is still closed. When the damper
motor is energized, the damper should open all the way.
Lock the chain onto the keyhole with another pendant just
like the chain beside it.
5. Wire the thermostat as shown in (Figure 19), using 20/2
wire, making sure the wall control is sufficiently away from
the direct radiation of the fireplace. Make certain that it is
at least 10 ft. away from the fireplace, but in the same
room. An interior wall is recommended for thermostat
installation.
CIRCULATING BLOWER (FD-HB5-N)
NOTE: It is important that the wiring for the blower kit is
installed during framing so that the wiring can be easily hid-
den.
1. Remove the bottom middle louver. It is held in place by
springs underneath. Therefore, push down from the top
and pull forward.
2. Hold the blower with the outlet facing up from the back.
Fit the blower through the louver opening.
3. Slide the blower into the two blower mounts being sure
that it is pushed all the way down.
4. Mount the thermo disc as shown in (Figure 21). The
front face of the fireplace is bent into a flange just above
the lower opening. The thermo disc mounts just above the
centre louvers. Push the clips on to the flange as far as
they will go.
NOTE: One thermo disc is all that is required to operate
either the internal blower, the central heat blower, or both.
5. Mount the provided speed control in a switch box at a
convenient location on the wall and connect it with con-
ventional 90° C 18 gauge wire (see Figure 20).
Page 16
DELTA
circulating blower
blower speed control
thermal switch bypass
terminal block
thermo disc
Figure 20: Circulating blower kit (FD-HB5-N)
mounting clips
bottom louvers
louver retention spring
thermo disc
terminal block
circulating blower
blower mounting brackets
Figure 21: Circulating blower location (sectional view)
See wiring diagram figure 41.
