Field Controls PVO-600, PVO-300 Model VAC RPM, Amp, Control Kits, System Operation

UNIT SPECIFICATIONS (See Table 1 and Figure 1)
Table 1
	UNIT DIMENSIONS (INCHES)
MODEL	“H”		“W”	“D”		I/O*
PVO-300	7.50		9.25	7.00		4/4
PVO-600	8.75		9.75	8.50		4/4
		*Inlet and outlet diameter.
	ELECTRICAL RATINGS
MODEL	VAC	Hz	RPM	WATT	AMP	TP**	Figure 1
PVO-300	120	60	3000	145	2.1	YES
PVO-600	120	60	3000	167	1.5	YES
	**Thermally protected motor.

SIDEWALL VENT HOODS (Model SWH-1)

Sidewall vent hoods are available in the following sizes. The vent hood should be chosen that matches the outlet size of the Power Venter. (See Figure 2) NOTE: When using different sizes consider reducers and specific size pipe when determining equivalent length of vent pipe.

SWH-1-3 - 3 inch

SWH-1-4 - 4 inch

SWH-1-5 - 5 inch

SWH-1-6 - 6 inch

SWH-1-8 - 8 inch

Figure 2

CONTROL KITS

The following Control Kits can be used to common vent multiple appliances with on PVO unit:

CK-61: For operation with all 120VAC oil-fired systems. Includes draft proving switch, adjustable electronic post purge timer, RJR isolation relay, and WMO-1 secondary safety switch.

CK-62: Same as CK-61, except has thermally activated post purge.

CK-63: For operation with all 120VAC oil-fired systems. Includes draft proving switch, adjustable electronic post purge timer, and WMO-1 secondary safety switch.

SYSTEM OPERATION

1.The thermostat (wall thermostat, or aquastat) calls for heat and energizes a relay which activates the power venter. After the venter motor has come up to speed, the pressure switch closes. This completes the circuit to the burner and allows the burner to fire.

2.After the heating requirement has been satisfied, the thermostat circuit will open and de-activate the burner and power venter circuit.

3.The power venter continues to operate for a period of time after the burner has shut off to purge remaining flue gases.

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