FortisBC - Dual function hot water tank: domestic and space heating ...
FortisBC - Dual function hot water tank: domestic and space heating ...
FortisBC - Dual function hot water tank: domestic and space heating ...
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<strong>Dual</strong> <strong>function</strong> <strong>hot</strong> <strong>water</strong> <strong>tank</strong>: <strong>domestic</strong> <strong>and</strong> <strong>space</strong><br />
<strong>heating</strong> <strong>hot</strong> <strong>water</strong><br />
This system uses a residential <strong>tank</strong>-style <strong>water</strong> heater<br />
to provide both <strong>domestic</strong> <strong>hot</strong> <strong>water</strong> <strong>and</strong> a source of heat<br />
for hydronic (<strong>hot</strong> <strong>water</strong>) <strong>space</strong> <strong>heating</strong> systems. The<br />
common terminology for this type of dual <strong>function</strong><br />
system is “Combo System.”<br />
The hydronic <strong>space</strong> <strong>heating</strong> system can consist of<br />
radiant floor, baseboard radiators, radiant panels, fan<br />
coil units, or combinations of all systems mentioned<br />
above. Heating can be zoned for individual rooms<br />
or areas using thermostatic control. Except for fan<br />
coil only systems, the <strong>hot</strong> <strong>water</strong> for <strong>space</strong> <strong>heating</strong> is<br />
separated from the potable <strong>domestic</strong> <strong>water</strong> by a heat<br />
exchanger. Therefore the <strong>water</strong> used for <strong>heating</strong> can be<br />
mixed with anti-freeze or other chemicals to make it<br />
suitable for snow melting if desired.<br />
Special design considerations <strong>and</strong> sizing guidelines<br />
must be followed when considering a Combo System.<br />
These guidelines are outlined in documents published<br />
by the Thermal Environmental Comfort Association<br />
(TECA), <strong>and</strong> other associations.<br />
NOTE: Municipal regulations should also be checked.<br />
Discover how to incorporate natural gas into your<br />
next project at fortisbc.com/energyteam.<br />
Energy solutions. We’ve got our best people on it.<br />
HWS<br />
CWR<br />
GAS COCK<br />
EXHAUST VENT<br />
GAS PIPING<br />
DIRT POCKET<br />
DRAIN VALVE<br />
ISOLATION<br />
VALVES<br />
GALVANIZED SHEET<br />
METAL DRAIN PAN<br />
P&T RELIEF VALVE<br />
SELF-RESETTING<br />
UNIONS<br />
G<br />
DOMESTIC<br />
WATER<br />
HEATER<br />
DUAL FUNCTION HOT WATER<br />
TANK — DETAIL<br />
Scale: NTS<br />
COMBUSTION AIR<br />
COLD<br />
AIR<br />
TRAP<br />
DISCLAIMER: This drawing is diagrammatic only. Not to be used for construction purposes.
COMBO SYSTEM — RADIANT FLOOR<br />
G<br />
G<br />
G<br />
G<br />
HWS<br />
G<br />
CWR<br />
DOMESTIC<br />
WATER HEATER<br />
G<br />
THERMOMETER<br />
AQUASTAT<br />
HEAT EXCHANGER<br />
UNION (TYP.)<br />
G<br />
HEAT<br />
EXCHANGER<br />
SHUTOFF VALVE (TYP.)<br />
AQUASTAT<br />
(STRAP-ON TYPE)<br />
UNION (TYP.)<br />
TEMPERATURE & PRESSURE<br />
RELIEF VALVE.<br />
DRAIN VALVE<br />
GALV. SHEET METAL<br />
DRAIN PAN<br />
Energy solutions. We’ve got our best people on it.<br />
VENT TO OUTSIDE, TO BE DETERMINED<br />
BY MECHANICAL ENGINEER<br />
Scale: NTS<br />
DISCLAIMER: This drawing is diagrammatic only. Not to be used for<br />
construction purposes.<br />
GAS PIPE FROM<br />
METER CLOSET<br />
AUTOMATIC AIR VENT (TYP.)<br />
AIRTROL FITTING<br />
T<br />
PUMP (TYP.)<br />
EXPANSION TANK<br />
TYPICAL HOT WATER<br />
SUPPLY PIPE.<br />
RUN TO ZONED<br />
RADIANT FLOOR GRID<br />
TYPICAL HOT WATER<br />
RETURN PIPE.<br />
RUN FROM ZONED<br />
RADIANT FLOOR GRID<br />
RADIANT PIPING MANIFOLD<br />
TO HAVE VALVES ON EACH LOOP<br />
3-WAY MIXING VALVE<br />
ARRANGEMENT TO BE<br />
DETERMINED BY<br />
MECHANICAL ENGINEER<br />
COMBO SYSTEM MUST<br />
MEET LOCAL MUNICIPAL<br />
INSTALLATION GUIDELINES<br />
<strong>FortisBC</strong> Energy Inc., <strong>FortisBC</strong> Energy (Vancouver Isl<strong>and</strong>) Inc. <strong>and</strong> <strong>FortisBC</strong> Energy (Whistler) Inc. do business as <strong>FortisBC</strong>. The companies are indirect, wholly owned subsidiaries of Fortis Inc.<br />
<strong>FortisBC</strong> uses the <strong>FortisBC</strong> name <strong>and</strong> logo under license from Fortis Inc.<br />
(11-552.16s 12/2011)
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