USE OM - JANURY 2017
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1.3.2
Unitary Small Air-Source Heat Pump (and Mix-Matched Coils) Certification Program
(USHP)
. This program applies to the Production Models of 50 and 60 Hz Air-Source Unitary Heat
Pumps below 65,000 Btu/h cooling, as defined in Section 1.2 and as listed below:
Air-Source Unitary Heat Pumps;
Single Packaged System;
Split Systems; and
Heat pump coils (and air-handling products with heat pump coils) that an ICM
rates as a system with other System M
anufacturer’s Outdoor Units.
1.3.3
Program Distinction
. The Unitary Small Air-Conditioner (USAC) and the Unitary Small
Air-Source Heat Pump (USHP) Certification Program are two separate programs. This also does
not apply to products within the scope of AHRI Standard 390.
1.3.4
Exceptions
. Effective July 1, 2016, both new 60 Hz single-phase and new three-phase
dry charge R-22 production models below 65,000 Btu/h are not within the scope of the certification
program in U.S. and Canada. All existing “active” listings will be changed to “discontinued.” All the
remaining “discontinued” listings will be “Archived” 12 months after the effective date.
1.4
Intended Market
. The Intended Market for both Certification Programs, where the Standard
applies, includes all products defined in Section 1.3 that are sold for use in the U.S. (including U.S.
Territories) and Canada.
1.5
Basic Model Groups (BMGs)
. A Par
ticipant’s listing shall be grouped by BMG.
1.5.1
System Manufacturer BMG Criteria
. A Split System BMG consists of products with the
same Outdoor Unit used with several Indoor Unit combinations (i.e. horizontal, vertical, A-coil, etc.).
Same Outdoor Unit refers to models with the same or comparable compressor, used with the same
outdoor coil surface area and the same outdoor air quantity.
1.5.1.1
Determination of BMGs for Calculating the Number of Tests (System
Manufacturer)
. When calculating the number of tests for a P
articipant’s annual testing
requirement, AHRI shall take the number of active BMGs at the time of selection. The
number of tests shall be reviewed again at a later date to determine if additional tests
are required. This number of active BMGs shall determine the thresholds for Probation
and Penalty Modes.
1.5.2
ICM BMG Criteria
. An ICM BMG consists of coils (Indoor Units) with matching capacity
ranges of 6,000 Btu/h and the following identical geometry parameters: air-handler, evaporator fan
type, evaporator number of rows, type of equipment (air-cooled, water-cooled or evaporatively-
cooled), evaporator tube centers, evaporator fin types, evaporator fins/inch, evaporator tube OD,
evaporator expansion device, fin length per slab, fin height per slab, number of slabs in the coil, fin
material type, tube material type, and total number of active tubes (refer to Table E1).
1.5.2.1
Determination of ICM BMG Coil Capacity Range for Calculating the
Number of Tests
. Number of test selections shall be based on a P
articipant’s total
number of 6,000 Btu/h capacity buckets (BMG Buckets) rated in the AHRI Directory of
Certified Product Ratings (Directory) as shown on Table E2. For example, if a
Participant builds Indoor Units
in Btu/h increments from 6,000 to 65,000 Btu/h’s and
offers all the variations of Coil Type and AHRI Type, the Participant would have 40
BMG Buckets. This number of BMG Buckets shall determine the thresholds for
Probation and Penalty Modes.
1.6
NAECA Compliance
. Only products meeting or exceeding ratings set by the Department of Energy
(DOE) in the National Appliance Energy Conservation Act (NAECA) are eligible for certification through the
AHRI certification program, where applicable.
