Lanair HI140i User Manual
Page 19
SECTION 8 COMPRESSED AIR SUPPLY
INSTALLATION
8.1 Install an air pressure supply line connection to the air filter/regulator on the
rear of the heater.
8.2 The air supply source must be capable of producing 1.0 CFM @ 100 PSI.
8.3 Install a shut off valve in the air supply line for service.
8.4 Install a primary air filter/regulator with a gauge (capable of reading line
pressure) in the air supply line prior to the air filter/regulator mounted on the
furnace. The primary air filter/regulator is not supplied with the furnace.
8.5 If the primary air regulator does not have a filter with a bowl, a condensate
drain leg must be installed in the air supply line.
8.6 Install a quick disconnect at the air filter/regulator on the furnace for
service.
8.7 For the ease of installation install a flexible air line (.250 I.D. minimum) from
the quick disconnect to the primary air regulator.
8.8 The air supply line must be pitched uphill from the primary regulator to the
furnace to prevent condensation from entering your burner.
8.9 Open all air shut off valves, and set the primary air regulator at 30 PSI.
8.10 Set the air filter/regulator on the rear of the furnace to 15 LBS. Refer to
Section 3.10 for a typical air pressure supply installation.
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