ICP AHX32400A1, AHX33600A1, AHX34800A1, AHX36000A1 Installation Guide
These instructions must be read and understood completely before attempting installation.
Safety Labeling and Signal Words
DANGER, WARNING, CAUTION, and
NOTE
The signal words DANGER, WARNING, CAU-
TION, and NOTE are used to identify levels of haz-
ard seriousness. The signal word DANGER is only
used on product labels to signify an immediate haz-
ard. The signal words WARNING, CAUTION, and
NOTE will be used on product labels and through-
out this manual and other manuals that may apply
to the product.
DANGER - Immediate hazards which will result in
severe personal injury or death.
WARNING - Hazards or unsafe practices which
could result in severe personal injury or death.
CAUTION - Hazards or unsafe practices which
may result in minor personal injury or product or
property damage.
NOTE - Used to highlight suggestions which will
result in enhanced installation, reliability, or opera-
tion.
Signal Words in Manuals
The signal word WARNING is used throughout this
manual in the following manner:
The signal word CAUTION is used throughout this
manual in the following manner:
Signal Words on Product Labeling
Signal words are used in combination with colors
and/or pictures on product labels.
TABLE OF CONTENTS
Introduction .................................... 2
Location ....................................... 2
Position Unit ................................... 4
Air Ducts ...................................... 5
Electrical Connections .......................... 5
Refrigerant Tubing .............................. 6
Refrigerant Metering Device ..................... 6
Condensate Drains ............................. 6
Schematic ..................................... 8
Sequence of Operation ......................... 10
Care and Maintenance ......................... 10
Parts ........................................ 11
DEATH, PERSONAL INJURY, AND/OR PROPERTY
DAMAGE HAZARD
Failure to carefully read and follow this warning
could result in equipment malfunction, property
damage, personal injury and/or death.
Installation or repairs made by unqualified per-
sons could result in equipment malfunction, prop-
erty damage, personal injury and/or death.
The information contained in this manual is in-
tended for use by a qualified service technician fa-
miliar with safety procedures and equipped with
the proper tools and test instruments.
Installation must conform with local building
codes and with the National Electrical Code
NFPA70 current edition.
Specifications are subject to change without notice 496 01 2100 02 June 2006
I _:o_: .......l_I',l_ _!I_ .......
Figure 1 Clearances and Unit Dimensions
" X _ _w" / "
REQUIRED CLEARANCES (inches)
All Sides 0
All
Models Serviceability from the front 30
From Supply Duct 0
Size all dimensions inches Coil Ship.
Model (tons) A B C D E F G Liquid Suct. Type (tbs)
AHX32400 2 171/2 21 15 171/2 16 125/8 403/4 3/8 3/4 "A" 144
AHX33600 3 171/2 21 15 171/2 16 125/8 403/4 3/8 3/4 "A" 144
AHX34800 4 211/2 25 191/4 221/4 195/8 171/4 493/4 3/8 7/8 "A" 192
AHX36000 5 211/2 25 191/4 221/4 195/8 171/4 493/4 3/8 7/8 "A" 192
INTRODUCTION
Models AHX3 are designed for an upfiow vertical applica-
tions.
All models are available for system sizes 2 - 5 tons
(24,000 - 60,000 BTUH) nominal cooling capacity.
All models have a factory installed 15% bleed port TXV
designed for use with R-22 refrigerant. AHX3 are for
R-22 refrigerant ONLY. Use only with outdoor units de-
signed for R-22
An accessory R410A TXV kit is available through the dis-
tributor. AHTXV153 (2 - 3 ton) or AHTXV355 (4 - 5 ton)
Weight
LOCATION
Select the best position which suits the installation site
conditions. The location should provide adequate struc-
tural support, space in the front of the unit for service ac-
cess, clearance for return air and supply duct
connections, space for refrigerant piping connections and
2 Specifications are subject to changewithout notice 496 01 2100 02
condensate drain line connections. See Clearances in
Figure 1.
If the unit is located in an area of high humidity, nuisance
sweating of casing may occur. On these installations a
wrap of 2" fiberglass insulation with a vapor barrier is rec-
ommended.
NOTE: Internal filter can be accessed from separate filter
door. If the filter can NOT be easily accessed, a remote
filter is recommended. Refer to ACCA Manual D for re-
mote filter sizing.
FIRE HAZARD
Failure to maintain proper clearances could result
in personal injury, death, and/or property damage.
When heaters are installed, maintain clearances
from combustible materials as specified on unit
rating plate. Do not use plastic lined or combus-
tible flexible ducting within 36 inches of the supply
end of the fan coil.
Figure 2
Airflow Motor @ 230V DD
Model No
Tonnage 1 Ph 60 Hz Blower 3-Spd
Range HP FLA Wheel
AHX32400 1.5-2.0 1/4 1.7 10x6
AHX33600 2.5-3.0 1/3 2.8 10x7
AHX34800 3.0-4.0 1/3 3.1 10x8
AHX36000
Notes:
4.0-5.0 3/4 4.8 11x9
(1) Based upon unit with nominal tannage dry coil and filter installed,
(2) Use ,96 as approximate SCFM correction factor for wet coil,
Figure 3 1
Fan Coil
Model
AHX3
2400
Heater
Model No.
None
HTR05BS 1
HTR10BS 1
Nominal
SCFM
800
900
Nominal
Cooling
18,000
to
24,000
Blower Data
Motor
H
M
L
H
M
L
H
M
L
H
M
L
Duty
,1 ,2 ,3 ,4 ,5
Cool 950 900 850 790 720
Cool 950 900 850 790 720
Heat 950 900 850 790 720
Cool 1250 1200 1120 1060 1000
Cool 1070 1020 970 920 860
Heat 900 870 840 790 720
Cool 1850 1700 1650 1500 1410
Cool 1750 1650 1450 1330 1180
Heat 1150 1060 1000 920 810
Cool 2160 2100 2000 1940 1880
Cool 2110 1980 1810 1750 1650
Heat 2000 1860 1670 1340 1200
Electric Heat Performance Data
KW
Electric
BTUH
to
240V 208V
0 0
5 3.8
10 7.5
240V 208V
SCFM vs, ESP (1) (2)
Min. Circuit
2.2 1.9
30 27
56 49
240V I
15
30
60
208V
15
30
50
3600
48OO
6000
None
HTR05BS1
HTR10BS1
HTR15BS1
None
HTR05BL1
HTR10BL1
HTR15BL1
HTR20BL1
None
HTR10BL1
HTR15BL1
HTR20BL1
1020
to
1200
1250
to
1750
1980
to
2100
30,000
to
36,000
42,000
to
48,000
48,000
to
60,000
0 0
5 3.8
10 7.5
15 11.3
0 0
5 3.8
10 7.5
15 11.3
20 15
0 0
10 7.5
15 11.3
20 15
3.1 3.0
30 27
56 49
56/26 49/23
3.1 3.0
30 27
59 52
53/27 46/24
59/53 52/46
6.0 5.9
59 52
56/27 49/24
59/53 52/46
15
30
60
60/30
15
30
60
60/30
60/60
15
60
60/30
60/60
15
30
60
50/30
15
30
60
50/30
60/50
15
60
50/30
60/50
496 01 2100 02 Specifications are subject to changewithout notice 3
POSITION UNIT
Unit is designed to be installed in a closet or flush
mounted. Can be serviced entirely from the front, includ-
ing replacing the filter. Allow space for wiring, piping, and
servicing unit.
PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in proper-
ty damage
A field fabricated auxiliary drain pan, with a sepa-
rate drain is REQUIRED for all installations over a
finished living space or in any area that may be
damaged by overflow from a restricted main drain
pan. In some localities, local codes require an aux-
iliary drain pan for ANY horizontal installation.
A. UPFLOW INSTALLATION
If return air isto be ducted through a floor, set unit on floor
over opening and use 1/8 to i/4 inch thick fireproof resil-
ient gasket between duct, unit, and floor.
Exterior surface may sweat when unit is installed in non-
conditioned space. Installer must provide protection such
as full size auxiliary drain pan on all units installed in non-
conditioned space to prevent damage from condensation
runoff. It is recommended that units be insulated with 1"
thick fiberglass with the vapor barrier on the outside.
B. HORIZONTAL APPLICATION
Units are shipped in right to left configuration. Horizontal
applications require a return air duct be attached to the
furnace inlet. The opposite end of the return air duct is at-
tached to a return air filter grill through the ceiling or wall.
For left to right applications:
1. Remove and set aside front panels.
2. Remove the coil support bracket (4 screws).
3. Remove horizontal drain pan retaining clip (1
screw).
4. Carefully remove coil assembly and bottom drain
pan.
5. Move Horizontal drain pan from left hand side of
coil to right.
6. Install modified coil assembly back into unit.
7. Reinstall coil support bracket and horizontal drain
pan retaining clip.
8. Determine drain holes being used and reposition
knockout caps.
9. Reinstall doors.
AIR DUCTS
Connect supply-air duct over the outside of %" flanges
provided on supply-air opening. Secure duct to flange us-
ing proper fasteners for type of duct used, and seal duct-
to-unit joint. If return-air flanges are required, install
factory authorized accessory kit.
Use flexible connectors between duct work and unit to
prevent transmission of vibration. Duct work passing
through unconditioned space must be insulated and cov-
ered with vapor barrier to prevent formation of conden-
sate to prevent formation of condensate.
ELECTRICAL CONNECTIONS
Refer to the unit's nameplate for specific electrical data.
Before proceeding with electrical connections, make cer-
tain that supply voltage, frequency, phase, and circuit am-
pacity are as specified on the unit rating plate. Make all
electrical connections in accordance with the NEC and
any local codes or ordinances that may apply. Use cop-
per wire rated for 75 degrees C minimum wire in the unit
wiring compartment only. A single power supply may be
connected directly to terminal block provided in the unit.
Duct work Acoustical Treatment
Metal duct systems that do not have a 90 degree elbow
and 10 feet of main duct before first branch takeoff may
require internal acoustical insulation lining. As an alterna-
tive, fibrous duct work may be used if constructed and
installed in accordance with the latest edition of SMACNA
construction standard on fibrous glass ducts. Both acous-
tical lining and fibrous duct work shall comply with Nation-
al Fire Protection Association as tested by UL Standard
181 for Class 1 air ducts.
ELECTRICAL SHOCK or UNIT DAMAGE HAZARD
Failure to follow this warning could result in per-
sonal injury, death, and/or unit damage.
Ifa disconnect switch is to be mounted on unit, se-
lect a location where drill and fasteners will not
contact electrical or refrigeration components.
4 Spe¢ificationsaresubiect to changewithout notice 496 01 2100 02
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