Product Manual

Section 7 - Air Supply Installation

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General Requirements

1. Install an air pressure supply line connection to the air filter/regulator on the rear of the

heater.

2. The air supply source must be capable of producing 2.0 CFM @ 60 PSI.

3. Install a shut off valve in the air supply line for service.

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 fil-

ter/regulator is not supplied with the furnace.

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.

6. Install a quick disconnect at the air filter/regulator on the furnace for service.

7. For the ease of installation install a flexible airline (.250 I.D. minimum) from the quick

disconnect to the primary air regulator.

8. The air supply line must be pitched uphill from the primary regulator to the furnace to

prevent condensation from entering your burner.

9. Open all air shut off valves, and set the primary air regulator at 30 PSI.

10. Set the air filter/regulator on the front of the furnace to 12-15 LBS. See illustration below

(Fig. 5) for a typical air pressure supply installation.

Figure 5

secondary air filter/

regulator (included)

air inlet

bottom of burner

to primary air filter/regulator (not included)

and air supply