6
FIGURE 3. Framing Dimensions
Framing should be constructed
of 2 X 4 lumber or heavier.
The framing headers may rest on
the fireplace stand-offs.
Model
A
B
C
D
E*
SL-550TRS-AUC
37"
33 1/2"
16 1/4"
36 1/2"
24 3/8"
(940mm)
(851mm)
(418mm)
(927mm)
(619mm)
*NOTE:
The center of
the framing hole is one
inch (254mm) above
the center of the
horizontal flue pipe.
A
B
C
FLUE
FRAMING
HOLE
E
D
CAUTION:
Measure heater dimensions, and verify
framing methods and wall covering details before fram-
ing construction begins.
1.1 INTRODUCTION
This model is designed to operate with all combus-
tion air being siphoned from the outside of the build-
ing and all exhaust gases expelled to the outside of
the building.
WARNING: THIS UNIT IS NOT FOR USE WITH
SOLID FUEL.
These units
MUST
use the flue termination described
in the flueing section of the manual.
The control system for these models are a millivolt type.
It consists of a gas control valve/variable regulator, a
standing pilot/thermopile/thermocouple, a piezo igni-
tor, and an ON/OFF switch. The controls are located
behind the lower grille. Access to the controls is gained
by rotating the grille down. See Figure 1.
Minimum inlet gas supply pressure for purpose of in-
put adjustment is 4.5 inches w.c. (1.13kPa) for natural
gas and 11 inches w.c. (2.75kPa) for propane. Mani-
fold (outlet) pressures should be set at 3.5 inches w.c.
(.8kPa) for natural gas models and 9.6 inches w.c.
(2.40kPa) for propane models.
u