6
AVFLST Vent Free Fireplace
Monessen • AVFLST42 Installation Instructions • 4118-900 Rev. B • 05/2020
PRODUCT FEATURES
NOTE:
For LP models an external regulator is required
to reduce supply pressure to a maximum of 13" w.c.
GAS SPECIFICATIONS & ORIFICE SIZE
AVFLST42 CONTROLS
MODEL
FUEL
MAX. INPUT
(BTU/h)
MIN. INPUT
(BTU/h)
ORIFICE
SIZE
AVFLST42NIP
NAT.
37,000
24,500
2.20 mm
AVFLST42PIP
LP.
36,000
28,500
#55
GAS PRESSURES
NATURAL
PROPANE (LP)
Inlet Minimum
5.0" w.c.
11.0" w.c.
Inlet Maximum
10.5" w.c.
13.0" w.c.
Regulator Pressure
Setting
3.5" w.c.
10" w.c.
Pilot Regulator
3.5" w.c.
—
Control Module
Thermocouple Module
Aux Module
LED Switches
Figure 1.
AVFLST42 Controls (Control Access Door Shown Open)
