Mascot FT Floor Standing Combination Boiler
Page 33
Offset Adjustment Screw.
(under the screw cap)
4.12 High Altitude Installations and Orifices
See Section 4.13
for instructions to change out the
Gas Line Nozzle/Orifice in the Mascot FT.
#
Altitude of Installation
0
0~1999 ft (0~609 m)
1
2,000~4,499 ft (610~1,645 m)
2
4,500~7,699 ft (1,646~2,346 m)
4
7,700~10,000 ft (2,347~3,048 m)
High Altitude settings (2,000 ~ 10,000 ft)
1. With the Power
turned OFF, press the 'Modes button'
for 5 seconds to get into the Installer
Parameters Mode.
2. Turn the dial (E) until ‘
28:HA
’ appears.
3. Press the dial (E).
4. Set the high altitude value by turning the dial.
Refer to table.
5. Press the dial again (E) to save the setting.
6. Press the ‘Modes button’
for one second, to Save the number and to go back to initial status.
The Mascot FT is shipped with a Natural Gas
Nozzle or Orifice that is designed for altitudes up
to 3,000 ft. Yet the Mascot FT may be installed
(without modification) at elevations up to 10,000 ft,
as the unit will de-rate at high altitudes.
Mascot FT’s that have been converted to propane
will also de-rate at high altitudes up to 10,000 ft.
To order a specialized ‘High Altitude’ Gas Line
Nozzle or Orifice to allow full rate operation,
please visit
www.laars.com/support/sales-reps.aspx
to get the contact info for your nearest Laars Sales
Representative.
A Gas Line Orifice is used
in the 199 MBH model
A Gas Line Nozzle is used
in the 140 MBH model
The Mascot FT does have some settings
within the Control Display that can be
adjusted to suit your installation altitude.
Summary of Contents for MFTCF140
Page 48: ...LAARS Heating Systems Page 46 4 19 Control Board Electrical Diagram SECTION 4 Installation...
Page 65: ...Mascot FT Floor Standing Combination Boiler Page 63 6 2 Fault Tree Analysis 1 Flame detection...
Page 75: ...Mascot FT Floor Standing Combination Boiler Page 73...
Page 78: ...LAARS Heating Systems Page 76 Heat Exchanger MFTCF140...
