Boreal ACDX-45, Руководство по установке

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2005 Boreal Geothermal Inc. www.boreal-geothermal.com
Boreal ® ACDX Heat Pump System Prerequisites
There are 4 (four) specific parts or sub systems to a ACDX heat pump installation:
I. The source of energy Solar & Geothermal
II. The storage media The Earth’s mass
III. Converting the energy to a useable form Heat Pump
IV. Distributing the heat Ductwork / radiant slab
Horizontal Loop Fields
The successful application of a ACDX heat
pump depends on sizing the machine correctly for
the home or area to condition and providing enough
land area or volume of earth from which to extract
or reject heat.
ACDX heat pumps react with the earth much
like a conventional reversing heat pump and
closed loop plastic earth heat exchanger. Heat
that is available to the unit must travel through the
earth and therefore the conduction capability of the
earth in the location of the heat exchanger is very
important. A unit used entirely or primarily for
heating will have no problem with conduction and
heat transfer since it will be cooling the loop during
heating mode which draws moisture towards the
coils because they are colder than the surrounding
ground. Horizontal loop fields should be laid out so
that the copper coils have good cross-sectional in-
fluence on the minimum areas listed above. As a
general rule, wider spacing between the loops so
that they do not influence one another, will result in
improved performance of the heat pump.
Unless you are sure there will be sufficient
moisture present in the loop field area during the
summer, a
soaker hose is recommended in all hori-
zontal trench systems which will used for air condi-
tioning purposes.
Vertical Bore Systems
Vertical bores (3” x 100 ft. holes) provide an
alternate method of installing a ACDX unit. A high
water table in the borehole area (20 to 30 ft.) will
insure that there is adequate conduction with the
earth and although the loop length per ton is shorter
than the horizontal design, the vertical orientation
and moisture in the boreholes provides very uni-
form conduction both winter and summer.
Air Flow
The charts above and below are general guide-
lines in selecting a ACDX-to-Air heat pump for
residential application. A detailed heat loss analysis
should be performed to determine the actual loads
on the building and to assist in sizing ductwork for
each individual room or space in the building.
Model
Number of
Loops
Required
Area
Trench
Layout
Boreal ACDX-45 (3) x 350’ 8,000 ft² 4’x 175’
Boreal ACDX-55 (4) x 350’ 10,000 ft² 4’ x 175’
Boreal ACDX-65 (5) x 350’ 12,500 ft² 4’ x 175’
Note: These are minimum loop field requirements based on an
earth temperature of 45° F.
Boreal® ACDX-45 will heat up to 1500 sq. ft.
Boreal® ACDX-55 will heat up to 2000 sq. ft.
Boreal® ACDX-65 will heat up to 2500 sq. ft.
Assuming at least R-20 walls and R-40 ceiling
Boreal® ACDX-45 models 1600 cfm
Boreal® ACDX-55 models 1900 cfm
Boreal® ACDX-65 models 2100 cfm
@ 80°F DB / 67°F WB and static pres of .2” H
2
0
Air Flow Available from each heat pump
Boreal® ACDX-45 could have up to 16 hot air grills.
Boreal® ACDX-55 could have up to 19 hot air grills.
Boreal® ACDX-65 could have up to 21 hot air grills.