Damper; Fresh Air Intake Adapter Installation (Optional) - PSG MAX CADDY Installation And Operating Instructions Manual

amper
3.9.1 D
If the draft exceeds 0.06 INW.C., a barometric damper must installed. The barometric damper must be adjusted so
that the maximum draft measured at the furnace outlet is limited to 0.06 IN.W.C. Please note that a draft higher than
0.06 IN.W.C. will reduce efficiency and could result in an uncontrollable fire. On the other hand, the minimum
draft to be respected is 0.04 IN.W.C. in the evacuation pipe on the solid fuel side, no matter what type of
furnace is use (WOOD, WOOD/ELECTRIC, WOOD/OIL, or WOOD/OIL/ELECTRIC).
3.10

FRESH AIR INTAKE ADAPTER INSTALLATION (OPTIONAL)

When the furnace and the chimney are completely cold, it may be necessary to provide fresh air by opening a door
or a window for a few minutes while lighting the fire.
Take note that a house constructed or renovated in order to be airtight may lack the volume of fresh air necessary
for the proper combustion of a solid-fuel heating appliance.
In such a case, when starting up the fire, do not operate appliances that evacuate air outside the house, such as:
- Range hood
- Air exchanger
- Clothes dryer
- Bathroom fan
- Ventilated central vacuum system
A fresh air supply may be necessary to prevent solid fuel units from rejecting products of combustion into the house.
The indications used to determine if an additional fresh air supply is necessary are not appropriate for all the
situations. When in doubt, it is recommended to install a fresh air supply.
A fresh air supply may be needed if:
- Solid fuel units present anomalies, such as irregular draft, smoke return, bad combustion, and/or
reversed draft (whether there is combustion or not);
Existing solid fuel units such as a stove or fireplace release odours, heat badly, cause smoke returns, or
-
reversed draft (whether there is combustion or not );
- The opening of a window, even slightly, in calm weather (windless), eliminates every problem mentioned
above ;
The house is equipped with a tight vapour barrier and adjusted windows, and/or is equipped with an
-
interior air mechanical evacuation device ;
There is excessive condensation on the windows in winter; and
-
The house is equipped with a ventilation system.
-
If, according to these symptoms or other similar ones, there is insufficient combustion air, it is necessary to ensure
an additional combustion air supply.
Additional combustion air can be provided following the following methods, provided that they satisfy chapter 4 of the
CSA B365 standard for Canada:

Direct connection: solid fuel units can be connected directly to a source of new combustion air only if they
are certified for this kind of installation, which must respect the manufacturer's instructions. The MAX Caddy
can be installed with an optional sealed fresh air kit that has been tested with the unit. Consult your dealer.

Indirect method: new combustion air can be brought into a pipe located within approximately 300mm (12
inches) of the unit. If the pipe is too close to the furnace, it may interfere with its operation.

Mechanical ventilation system: if the house is equipped with a ventilation system (air exchanger or heat
recovery), the ventilation system may provide sufficient auxiliary air to the solid fuel unit. Otherwise, the
owner should be informed that the ventilation system may have to be rebalanced by a ventilation technician
after the installation of the solid fuel unit.
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