Thermo Pride Gas Propane Furnace Concentric Vent User Manual

ALL INSTALLATIONS AND SERVICE MUST BE PERFORMED BY QUALIFIED SERVICE PERSONNEL.

INSTALLATION INSTRUCTIONS FOR

CONCENTRIC VENT KIT AOPS7483 & DUAL PIPE FLASHING KIT AOPS7484

ELECTRIC SHOCK HAZARD/FIRE AND/OR EXPLOSION HAZARD.

Failure to carefully read and follow all instructions in these instructions could result in death,
personal injury, property damage and/or furnace malfunction.

Installation or repairs made by unqualified persons could result in hazards to you and others.
Installation MUST conform with local codes or, in the absence of local codes, with codes of the
country having jurisdiction.

The information contained in these instructions is intended for use by a qualified service
technician familiar with safety procedures and equipped with the proper tools and test
instruments.

ELECTRIC SHOCK HAZARD/FIRE AND/OR EXPLOSION HAZARD.

Failure to follow this warning could result in death, personal injury, property damage and/or
equipment damage.

Turn OFF gas supply at manual gas valve before turning OFF electric power supply and
starting installation.

Turn OFF electric power supply at disconnect switch or service panel before starting
installation.

CARBON MONOXIDE POISONING, AND PROPERTY DAMAGE HAZARD.

Failure to follow this warning could result in death, personal injury, property damage and/or
equipment damage.

This kit is to be used for terminating condensing Category IV vent furnaces. DO NOT use kit
to terminate Category I, II, or III vent furnaces.

MG-507

ECN 5059-MA

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ALL INSTALLATIONS AND SERVICE MUST BE PERFORMED BY QUALIFIED SERVICE PERSONNEL.

AOPS7483 Kit contents:

Item Qty

Concentric Vent 1
Flashing, single pipe 2
Hose clamp 2
Fitting 4x3 (Fernco) 1
Instructions 1

CONNCENTRIC VENT

AOPS7484 Kit contents:

Item Qty

Flashing, dual pipe pipe 2
Hose clamp 4
Instructions 1

MG-507

ECN 5059-MA

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ALL INSTALLATIONS AND SERVICE MUST BE PERFORMED BY QUALIFIED SERVICE PERSONNEL.

INSTALLING CONCENTRIC VENT UTILIZING EXISTING ROOF JACK AS A CHASE.

1. Required kit: AOPS7483

2. Type installation: Vertical through the roof

3. Remove top cap and bird screen from roof jack. If present, remove 4” diameter inner
pipe shield and fold over vertical tabs inside flue pipe.

4. Determine vertical height dimension (DIM-A) of current roof jack, see FIG-2. THIS
DIMENSION IS IMPORTANT. If this dimension is less than 14-7/8”, skip to step 6. If
dimension is greater than 14-7/8”, the 3” and 2” PVC pipes in the concentric vent
assembly will need to be replaced with longer pipes to ensure proper installation.

5. To extend the concentric vent assembly, the two pipes supplied in the kit will need to be
replaced with single piece (no coupling connections allowed) same diameter solid core,
field supplied SDR-26 PVC (ASTM D2241) pipe. See FIG-1, FIG-3 & FIG-4 for
calculating new pipe cut lengths.

UNIT OPERATION HAZARD.

Failure to follow this caution may result in intermittent unit operation.
Do not use field supplied couplings to extend the pipes. Airflow restriction will occur and the

furnace pressure switch may cause intermittent operation.

6. Place Fernco Fitting on end of 3” pipe leaving 1 ¼” of pipe exposed above fitting for rain
cap, see FIG-3. Tighten clamp.

7. Affix rain cap to 2” pipe with either PVC cement or a field supplied stainless steel screw,
see FIG-4.

CARBON MONOXIDE POISONING, FIRE AND EXPLOSION HAZARD.

Failure to follow this warning could result in death, personal injury and/or property damage.
When using the alternate screw assembly method, drill a clearance hole in the rain cap and a

pilot hole in the vent pipe for screw size being used. Failure to drill adequate holes cause
cracking o the PVC components, allowing flue gasses to be recirculated.

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ALL INSTALLATIONS AND SERVICE MUST BE PERFORMED BY QUALIFIED SERVICE PERSONNEL.

8. Drop 3” pipe assembly (FIG-3) thru 4” flue opening of roof jack, seat Fernco fitting firmly
on roof jack flue pipe and tighten clamp.

9. Drop 2” pipe assembly (FIG-4) thru 3” pvc pipe, seat rain cap tightly on end of 3” pvc
pipe.

CARBON MONOXIDE POISONING, FIRE AND EXPLOSION HAZARD.

Failure to follow this warning could result in death, personal injury and/or property damage.
Do not operate the furnace with the rain cap removed as recirculation of the flue gases may

occur. Water may also collect inside the larger combustion air pipe and flow to the burner
enclosure.

10. At this point the WYE fitting can be applied using PVC cement to affix it to the 3”
diameter pipe, see FIG-5.

11. Using field supplied PVC pipe and elbows connect the center vent pipe on the WYE
fitting to the exhaust vent pipe on the furnace and the 45° air intake pipe on the WYE

fitting to the combustion air intake pipe on the furnace. PVC cement all joints except for
the final connection to the furnace. Use radiator hose fittings and clamps included with
furnace to make final connection, see FIG-5.

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