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HEAT CONTROLLER, INC. WATER-SOURCE HEAT PUMPS
Residential Split - 60Hz R22 &R410A
Rev.: 5 June, 2008
6
Heat Controller, Inc. Water-Source Heating and Cooling Systems
The installation of geothermal heat pump units and all
associated components, parts, and accessories which make
up the installation shall be in accordance with the regulations
of ALL authorities having jurisdiction and MUST conform to
all applicable codes. It is the responsibility of the installing
contractor to determine and comply with ALL applicable
codes and regulations.
General
Proper indoor coil selection is critical to system efficiency.
Using an older-model coil can affect efficiency and may not
provide the customer with rated or advertised EER and COP.
Coil design and technology have dramatically improved
operating efficiency and capacity in the past 20 years.
Homeowners using an older coil are not reaping these cost
savings and comfort benefits. NEVER MATCH AN R-22
INDOOR COIL WITH AN R-410A COMPRESSOR SECTION.
Newer indoor coils have a larger surface area, enhanced fin
design, and grooved tubing. These features provide a larger
area for heat transfer, improving efficiency and expanding
capacity. Typical older coils may only have one-third to one-
half the face area of these redesigned coils.
Equipment Selection
Indoor Coil Selection - HTS GeoMax 2
HCI split system heat pumps are rated in the ARI directory
with a specific indoor coil match. GeoMax 2 (HTS) models
are rated with Carrier/Bryant FV4 or FE4 series variable
speed air handlers as shown in Table 1a. Other brands of
air handlers may attain the same ARI ratings providing that
the specifications meet or exceed those listed in Table 1a
AND Table 1b. An ECM motor and TXV is required. Cap
tubes and fixed orifices are not acceptable. PSC fans may
be used if matched to Table 1b, but will not meet ARI ratings.
If using PSC fan, compressor section must be operated as a
single stage unit (i.e. wired for either 1st stage or 2nd stage).
Without the ability to vary the airflow, supply air temperatures
may not be acceptable if the compressor is allowed to
change stages when used with a PSC fan motor.
Table 1a: GeoMax 2 (HTS) Air Handler Matches for ARI Ratings
Compressor Section 024 036 048 060
Air Handler
Model FV4
003 005 006 006
Refrigerant R-410A
Metering Device TXV (required)
Air Coil
Type
Rows - Fins/in.
Face Area (sq. ft.)
Slope
3 - 14.5
3.46
A
3 - 14.5
5.93
A
3 - 14.5
7.42
A
3 - 14.5
7.42
Cabinet Configuration
Upflow/Downflow/Horizontal (Multipoise)
ECM Settings for
ARI Ratings
(FV4 Fan Coil)
AC/HP size: 036
System Type:
Comfort AC/HP
CFM Adjust: Nom
AC/HP size: 036
System Type:
HP-Effic AC/HP
CFM Adjust: High
AC/HP size: 048
System Type:
Comfort AC/HP
CFM Adjust: High
AC/HP size: 060
System Type:
Comfort AC/HP
CFM Adjust: High
Fan Motor Type - HP ECM - 1/2 ECM - 1/2 ECM - 3/4 ECM - 3/4