Field Controls PVU-300 Installation And Operation Manual Download Page 12

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Page 12

Diagram G – Multiple Wiring with two 24 VAC Appliances

2. To vent two 24 VAC appliances using one PVU power venter refer to the following.

a. Follow the instructions for safe and proper venting previously specified in this manual. Make sure that the

combined gross BTU/Hr input and equivalent vent pipe length does not exceed the maximum venting capacity of
the venter selected.

b. A CK-41 Control Kit must be added to the system to properly control the venter when common venting an

additional 24 VAC furnace or boiler. Tee the draft tube on the PVU unit to connect to the air pressure switch on
the Control Kit. Refer to Diagram G for wiring instructions.

Summary of Contents for PVU-300

Page 1: ...Sizing 2 3 Installation Safety Instructions 3 4 Installation of Power Venter 4 6 General Wiring Instructions 6 PVU Internal Wiring Schematic 6 8 Adjusting Thermostat Anticipator 8 Airflow Adjustments 9 General Installation Inspection 9 System Control Check Procedures 10 Troubleshooting Tips 10 Maintenance 10 Replacement Parts List 10 Multiple Venting Systems 11 13 Venting System Operational Inform...

Page 2: ...s the gas pressure switch on the gas valve activates the power venter at the same time as the burner fires 3 After the heating requirement has been satisfied the thermostat circuit will open and de activate the burner and power venter circuit 4 The post purge timer continues to run the power venter for a period of time after the burner has shut off to purge remaining flue gases POWER VENTER SIZING...

Page 3: ...trained or a licensed installer The installer must write or imprint his name phone number and date of installation on the installation tag The tag should be attached to the power venter unit Recording burner and venting system initial operational information is recommended as a guide for service or burner tune up Enter this on the back page of this manual 2 Safety inspection of a venting system sh...

Page 4: ...ure that the motor and venter wheel rotate freely DO NOT install if any damage is apparent Refer to unit sizing chart to check proper venting sizing 2 Location of the termination of the venting system should be installed in accordance with the National Fuel Gas Code A N S I Z233 1 manufacturer s recommendations and or local codes which are applicable See the following requirements or refer to Diag...

Page 5: ...induced gas fired heating appliance a barometric draft control must be installed on the vent system between the appliance outlet and the venter inlet See Figure 6 CAUTION The power venter should never be installed with the motor shaft in the vertical position This could allow heat to be trapped in the venter housing and radiate through the motor possibly causing motor deterioration and premature f...

Page 6: ... disk directed into the draft hood See Figure 7 2 Route the electrical wires along the heating appliance cabinet within an accepted wiring enclosure in accordance with the National Electrical Code and any applicable local codes Keep the wires away from any HOT surfaces 3 Wire the switch into the low voltage thermostat circuit Refer to the appropriate wiring diagram in this manual 4 After installat...

Page 7: ...uit breaker rated at 15 amperes Prevent wiring contact with any heat source IMPORTANT The PVU 300 is shipped with the yellow mode wire connected to the 120VAC terminal This is correct for 120VAC control typical oil fired For 24VAC control typical gas fired the yellow mode wire must be disconnected from the 120VAC terminal and reconnected to the 24VAC terminal see wiring diagrams NOTE Wire the vent...

Page 8: ... of the thermostat circuit at the gas valve or burner control and connect an ampere meter into the circuit With the system running take an amperage reading on the circuit Check the nameplate or instructions for the thermostat to obtain the proper amperage level Adjust amperage level by moving the anticipator lever Reconnect the thermostat to the gas valve and start the system operating Time the bu...

Page 9: ...ection 1 Visually inspect the venting system for proper size and determine that there is no blockage restriction leakage corrosion or other deficiencies which could cause unsafe operation 2 To the extent possible close all building doors windows and all doors to the room in which the heating appliance is located Turn on clothes dryers and any exhaust fans so that they operate at maximum speed Do n...

Page 10: ...e when thermostat calls for heat a Check to see if relay closes when thermostat calls for heat b Check wiring connections including yellow mode wire connection c Check motor for unrestricted shaft rotation 3 Exhaust gas odor a Check system draft level during operation b Check vent system on outlet side of venter for leakage c Check for negative pressure in building MAINTENANCE 1 Motor Inspect the ...

Page 11: ...w the instructions for safe and proper venting previously specified in this manual Make sure that the combined gross BTU Hr input and equivalent vent pipe length does not exceed the maximum venting capacity of the venter selected b A CK 20FV or CK 20FG control kit MUST be added to the system to properly control the venter during operation of the water heater Refer to Figure 10 and Diagram F for ve...

Page 12: ...manual Make sure that the combined gross BTU Hr input and equivalent vent pipe length does not exceed the maximum venting capacity of the venter selected b A CK 41 Control Kit must be added to the system to properly control the venter when common venting an additional 24 VAC furnace or boiler Tee the draft tube on the PVU unit to connect to the air pressure switch on the Control Kit Refer to Diagr...

Page 13: ...al Make sure that the combined gross BTU Hr input and equivalent vent pipe length does not exceed the maximum venting capacity of the venter selected d A CK 61 62 or 63 Control Kit must be added to the system to properly control the venter when common venting an additional 120 VAC furnace or boiler Tee the draft tube on the PVU unit to connect to the air pressure switch on the Control Kit Refer to...

Page 14: ... POWER VENTER VERTICAL VENTING OPTION Natural gas lp gas or 2 fuel oil appliance rated at 75 or greater non condensing type of appliance Maximum input temperature at power venter 575 f Diagram I Vertical Venting Option ...

Page 15: ...iance outlet flue gas temperature INSTALLATION INFORMATION MODEL NO ____________________________________________________________ INSTALLER S NAME _____________________________________________________ INSTALLER S COMPANY _________________________________________________ INSTALLER S PHONE NO ________________________________________________ DATE OF INSTALLATION _______________________________________...

Page 16: ...Page 16 P N 46517200 Rev B 11 06 ...

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