This system uses an individual forced air heating and cooling unit located in each suite of a multi-family building. The unit heats or cools air that is distributed through ducts in the suite.
The system consists of a condensing forced air furnace, similar to one found in a detached house. This furnace is usually much smaller than a household furnace, but uses the same principles of ductwork and a cooling coil.
And since it can be vented horizontally, this furnace can be installed inside each suite.
Furnaces can be readily adapted to individual metering, so homebuyers won’t have to subsidize the natural gas use of their neighbours. The units can be designed to provide outdoor air for ventilation, and can incorporate special filtration and humidification for allergy sufferers.
Special design considerations and sizing guidelines must be followed when considering a forced air heating and cooling system. These guidelines can be found in publications such as the ASHRAE handbook, or in documents published by trade associations such as the
Thermal Environmental Comfort Association (TECA).
NOTE: Municipal regulations should also be checked.
Discover how to add the comfort, convenience and efficiency of natural gas to your next project. We’ll work with you every step of the way. We can help your customers reduce their energy costs, and you may qualify for financial incentives through FortisBC.
Learn more at fortisbc.com/rebates . Or contact a FortisBC energy solutions manager near you at fortisbc.com/energyteam .
FLOOR
Scale: NTS
DISCLAIMER: This drawing is diagrammatic only. Not to be used for construction purposes.
REFRIGERANT PIPING
OR CHILLED WATER PIPING
(DIAGRAMMATIC ONLY)
CEILING
G
G
GAS PIPE TO METER
CLOSETS & ASSOC.
METER
SUPPLY AIR DUCT
POWER VENT FLUE TO
OUTSIDE WALL CAP
(COMBUSTION AIR
INTAKE IS NOT SHOWN)
CONDENSATE DRAIN
FROM COOLING COIL
G
FILTER
COOLING COIL
RETURN AIR DUCT
CONDENSATE TO
FLOOR DRAIN
GAS FIRED CONDENSING
FURNACE (ENERGY STAR)
12-356.4_IndForcedAirHeatAndCoolCondFurnace_P1.indd 1 11/8/2013 1:10:34 PM

Scale: NTS
DISCLAIMER: This drawing is diagrammatic only. Not to be used for construction purposes.
GAS PIPE FROM
GAS METER CLOSET
THERMOSTAT
RETURN AIR GRILLE
T
TYPICAL AIR
SUPPLY DUCT
FURNACE VENT
& COMBUSTION
AIR GRILLE AT
BALCONY CEILING
OR WALL CAP
(TO BE DETERMINED
BY MECHANICAL
ENGINEER)
FortisBC Energy Inc., FortisBC Energy (Vancouver Island) Inc., FortisBC Energy (Whistler)
Inc., and FortisBC Inc. do business as FortisBC. The companies are indirect, wholly owned subsidiaries of Fortis Inc. FortisBC uses the FortisBC name and logo under license from
Fortis Inc.
(12-356.4 10/2013)
12-356.4_IndForcedAirHeatAndCoolCondFurnace_P1.indd 2 11/8/2013 1:10:35 PM