Bryant 124A User Manual
124A
LEGACYt LINE 14 AIR CONDITIONER
WITH PURONr REFRIGERANT
1--1/2 TO 5 TONS (SIZES 018 TO 060)
PRODUCT DATA
TM
the environmentally sound refrigerant
Bryant Air Conditioners with Puron r refrigerant provide a
collection of features unmatch ed by any other family of
equipment. The 124A has been designed utilizing Bryant’s Puron
refrigerant. The environmentally sound refrigerant allows you to
make a responsible decision in the protection of the earth’s ozone
layer.
As an Energy Star r Partner, Bryant Heating & Cooling has
determined that this product meets the Energy Starr guidelines
for energy ef ficiency . Refer to the combination ratings in the
Product Data for system combinations that meet Energy Starr
guidelines.
NOTE: Ratings contained in this document are subject to
change at any time. Always refer to the AHRI directory
(www.ahridirectory.org) for the most up-- to --date ratings
information.
INDUSTRY LEADING FEATURES / BENEFITS
Efficiency
14 SEER / 11.5 -- 12.0 EER
S
S Microtube Technologyt refrigeration system
S Indoor air quality accessories available
Sound
Sound level as low as 72 dBA
S
S Compressor sound blanket
Comfort
System supports Thermidistatt or standard thermostat
S
controls
Reliability
Puronr refrigerant -- environmentally sound, won’t
S
deplete the ozone layer and low lifetime service cost.
S Front--seating service valves
S Scroll compressor
S Internal pressure relief valve
S Internal thermal overload
S Low pressure switch
S High pressure switch
S Filter drier
S Balanced refrigeration system for maximum reliability
Durability
DuraGuardt protection package:
S Solid, Durable sheet metal construction
S Steel louver coil guard
S Baked--on, complete outer coverage, powder paint
S Color matched ceramic coated screws
Applications
Long-- line -- up to 250 feet (76.2 m) total equivalent
S
length, up to 200 feet (60.96 m) condenser above
evaporator, or up to 80 ft. (24.38 m) evaporator above
condenser (See Longline Guide for more information.)
S Low ambient (down to --20_F/--28.9_C) with accessory
kit
MODEL NUMBER NOMENCLATURE
1234 5 678910111214
NNNAA/NNNNNA/NA/NNA
124A N A036000A
Product
Famil y
1=AC 2=
the environmentally sound refrigerant
124A
Tier SEER Major Se-
Legacy
4=14
SEER
ries
A=Puron N=
Voltage Variation s Cooling Capacity Open Open Open Minor
208--- 230---
1or
208/230--- 1
A=
Standard
ISO 9001:2000
REGISTERED
0=Not
Defined0=Not
Defined
This product h as been designed and manuf actured to
meet Ener gy Star® criteria for energy effi ciency when
matched with appropriate coil components. However,
proper r efrigerant c harge and pro per air f low are cr itical
to achieve rated capacity and effici ency. Installation of
this product should follow all manufacturing refrigerant
charging and air flow instructions. Failure to confirm
proper charge and air flow may reduce energy
efficiency and shorten equ ipment life.
0=
Not
Defined
STANDARD FEATURES
FEATURES
018--- C 024--- D 030 ---D 036 ---C 042 ---D 048--- C 060--- C
Puron Refrigerant X X X X X X X
Maximum SEER Rating 15.5 16.0 16.0 16.0 16.0 15.0 14.5
Scroll Compressor X X X X X X X
Louvered Coil Guard X X X X X X X
FieldInstalledFilterDrier X X X X X X X
Front Seating Service Valves X X X X X X X
Internal Pressure Relief Valve X X X X X X X
Internal Thermal Overload X X X X X X X
Long Line capability X X X X X X X
Low Ambient capability with Kit X X X X X X X
Low Pressure (loss of charge) Switch X X X X X X X
High Pressure Switch X X X X X X X
Compressor Sound Blanket X X X X X X X
X=Standard
Unit Size --- Series
Series
A=
Original
Series
2
PHYSICAL DATA
UNIT SIZE --- SERIES 018 --- C 024 --- D 030--- D 036---C 042---D 048 --- C 060 --- C
Operating Weight lb (kg) 195 (88.4) 184 (83.5) 177 (80.3) 225 (102.1) 228 (103.4) 270 (122.5) 337 (152.9)
Shipping Weight lb (kg) 223 (101.2) 223 (101.2) 218 (98.9) 259 (117.5) 267 (121.1) 303 (137.4) 372 (168.7)
Compressor Type Scroll
REFRIGERANT Puron® (R---410A)
Control TXV (Puron® Hard Shutoff)
Charge lb (kg) 5.4 (2.45) 5.48 (2.49) 5.8 (2.63) 6.97 (3.16) 9.5 (4.31) 11 (4.99) 13.3 (6.03)
COND FAN Propeller Type, Direct Drive
Air Discharge Vertical
Air Qty (CFM) 2235 3223 3223 3810 3810 3810 4050
Motor HP 1/12 1/12 1/12 1/5 1/5 1/5 1/4
Motor RPM 800 800 800 800 800 800 800
COND COIL
Face Area (Sq ft.) 19.40 17.60 17.60 22.63 17.60 20.12 30.18
Fins per In. 25 25 25 25 20 20 20
Rows 1 1 1 1 2 2 2
Circuits 3 4 4 5 7 7 7
VALVECONNECT.(In.ID)
Vapor 5/8 5/8 3/4 3/4 7/8 7/8 7/8
Liquid 3/8
REFRIGERANT TUBES (In. OD)
Rated Vapor* 5/8 3/4 7/8 1 --- 1 / 8
Liquid 3/8
*Units are rated with 25 ft (7.6 m) of lineset length. See Vapor Line Sizing and Cooling Capacity Loss table when using other sizes and lengths of lineset.
VAPOR LINE SIZING AND COOLING CAPACITY LOSS
LONG LINE APPLICATION: An application is considered
”Long line” when the total equivalent tubing length exceeds 80
ft. (24.38 m) or when there is more than 20 ft. (6.09 m) vertical
separation between indoor and outdoor units. These applications
require additional accessories and system modifications for
reliable system operation. The maximum allowable total
equivalent length is up to 250 ft. (76.2 m). The maximum
Unit
Nominal
Size
(Btuh)
18000
1Stage
Puron AC
24000
1Stage
Puron AC
30000
1Stage
Puron AC
36000
1Stage
Puron AC
42000
1Stage
Puron AC
48000
1Stage
Puron AC
60000
1Stage
Puron AC
Applications in this area are long line. Accessories are required as shown recommended on Long Line Application Guidelines
Applications in this area may have height restrictions that limit allowable total equivalent length, when outdoor unit is below indoor unit See Long Line Application Guidelines
Maximum
Liquid Line
Diameters
(In. OD)
3/8
3/8
3/8
3/8
3/8
3/8
3/8
Vapo r Line
Diameters
(In. OD)
1/2 1 2 3 4 6 7 8 9 10
5/8 0 0 1 1 1 2 2 3 3
5/8 0 1 1 2 3 3 4 4 5
3/4 0 0 0 0 1 1 1 1 1
7/8 0 0 0 0 0 0 0 0 0
5/8 1 2 3 3 4 5 6 7 8
3/4 0 0 1 1 1 2 2 2 3
7/8 0 0 0 0 1 1 1 1 1
5/8 1 2 4 5 6 7 9 10 11
3/4 0 0 1 1 2 2 3 3 4
7/8 0 0 0 0 1 1 1 1 2
3/4 0 1 2 2 3 4 4 5 6
7/8 0 0 1 1 1 2 2 2 3
11/8 0 0 0 0 0 0 0 0 0
3/4 0 1 2 3 4 5 5 6 7
7/8 0 0 1 1 2 2 2 3 3
11/8 0 0 0 0 0 0 0 1 1
3/4 1 2 4 5 6 7 9 10 11
7/8 0 1 2 2 3 4 4 5 5
11/8 0 0 0 1 1 1 1 1 1
Standard
Application
26---50
(7.9---15.2)
51---80
(15.5---24.4)
81---100
(24.7---30.5)
vertical separation is 200 ft. (60.96 m) when outdoor unit is
above indoor unit, and up to 80 ft. (24.38 m) when the outdoor
unit is below the indoor unit. Refer to Accessory Usage Guideline
below for required accessories. See Longline Application
Guideline for required piping and system modifications. Also,
refer to the table below for the vapor tube diameters based on the
total length to minimize the cooling capacity loss.
Cooling Capacity Loss (%)
Total Equivalent Line Length ft. (m)
Long Line Application Requires Accessories
101---125
(30.8---38.1)
126---150
(38.4---45.7)
151---175
(46.0---53.3)
176---200
(53.6---61.0)
201---225
(61.3---68.6)
226---250
(68.9---76.2)
124A
3
ACCESSORIES
ORDER NUMBER DESCRIPTION 018 --- C 024--- D 030--- D 036---C 042---D 048 --- C 060 ---C
KAACH1201AAA CRANKCASE HTR X X X
KAACH1401AAA CRANKCASE HTR X X X X
KSACY0101AAA CYCLE PROTECTOR X X X X X X X
KAAFT0101AAA FREEZE THERMOSTAT X X X X X X X
KSAHS1701AAA HARD START (CAP / RELAY) X X X X X X X
KSALA0301410* LOW AMBIENT PSW X X X X X X X
HC32GE229 MOTOR FAN BALL BEARING X X X
HC38GE228 MOTOR FAN BALL BEARING X X X
HC40GE228 MOTOR FAN BALL BEARING X
KSALA0601AAA* MOTORMASTER 230V X X X X X X X
KAALS0201LLS SOLENOID VALVE X X X X X X X
KAACS0201PTC STARTASSISTPTC X X X X X X X
KSASF0101AAA SUPPORT FEET X X X X X X X
KAATD0101TDR TIME DELAY RELAY X X X X X X X
KSATX0201PUR TXV P URON HSO X X X
KSATX0301PUR TXV P URON HSO X X
124A
KSATX0401PUR TXV P URON HSO X
KSATX0501PUR TXV P URON HSO X
KAAWS0101AAA WINTER START X X X X X X X
x = Accessory
* See Accessory Usage Guideline for other accessories n eeded for low ambient cooling applications.
THERMOSTATS
THERMOSTAT / SUBBASE PKG. DESCRIPTION
T 6 --- P R H --- 0 1 Programmable Thermidistat
T 6 --- N R H --- 0 1 Non--- programmable Thermidistat
T 2 --- P A C --- 0 1 Legacy Series Programmable AC Stat
T 2 --- N A C --- 0 1 Legacy Series Non--- programmable AC Stat
TSTATBBPRH01--- B Thermidistat Control --- Programmable / Non--- Programmable Thermostat with Humidity control
TSTATBBPAC01 --- B T h e r m o s t a t --- A u t o C h a n g e o v e r, 7 --- D a y P r o g r a m m a b l e , _F/_C , 1 --- S t a g e H e a t , 1 --- S t a g e C o o l
TSTATBBNAC01---C T h e r m o s t a t --- A u t o C h a n g e o v e r , N o n --- P r o g r a m m a b l e , _F/_C , 1 --- S t a g e H e a t , 1 --- S t a g e C o o l
TSTATBBBAC01 --- B Builder’s Thermostat --- Manual Changeover, Non ---Programmable, _F/_C , 1 --- S t a g e He a t , 1 --- S t a g e C o o l
TSTATBBSEN01--- B Outdoor Air Temperature Sensor
TSTATXXBBP01 Backplate f or Builder’s Thermostat
TSTATXXNBP01 Backplate for Non ---Programmable Thermostat
TSTATXXPBP01 Backplate for Programmable Thermostat
TSTATXXCNV10 Thermostat Conversion Kit (4 to 5 wires) --- 10 Pack
4
ACCESSORY USAGE GUIDELI NE
REQUIRED FOR LOW--- AMBI-
ACCESSORY
Ball Bearing Fan Motor Yes { No No
Compressor Start Assist Capacitor and Relay Yes Yes No
Crankcase Heater Yes Yes No
Evaporator Freeze Thermostat Yes No No
H a r d S h u t --- O f f T X V Yes Yes Yes
Liquid Line Solenoid Valve No No No
Motor Master®Control or
L o w --- a m b i e n t P r e s s u r e S w i t c h
Support Feet Recommended No Recommended
* For tubing line sets between 80 and 200 ft. (24.38 and 60.96 m) a nd/or 20 ft. (6.09 m) vertical differential, ref er to Residential Split --- System Longline
Application Guideline.
{ Required for Low---Ambient Controller (full modulation feature) MotorMasterr Control.
Winter Start Control Yes No No
ENT COOLING APPLICATIONS
(Below 55°F/12.8_C)
Yes No No
REQUIRED FOR LONG
LINE
APPLICATIONS*
(Over 80 ft./24.38 m)
Accessory Description and Usage (Listed Alphabetically)
1. Ball--Bearing Fan Motor
A fan motor with ball bearings which permits speed reduction
while maintaining bearing lubrication.
Usage Guideline:
Required on all units when MotorMasterr —
2. Compressor Start Assist -- Capacitor and Relay
Start capacitor and relay gives a ”hard” boost to compressor
motor at each start up.
Usage Guideline:
Required for reciprocating compressors in the
following applications:
Long line
Low ambient cooling
Hard shut off expansion valve on indoor coil
Liquid line solenoid on indoor coil
Required for single--phase scroll compressors in the
following applications:
Long line
Low ambient cooling
Suggested for all compressors in areas with a history of
low voltage problems.
3. Compressor Start Assist — PTC Type
Solid state electrical device which gives a ”soft” boost to the
compressor at each start--up.
Usage Guideline:
Suggested in installations with marginal power supply.
4. Crankcase Heater
An electric resistance heater which mounts to the base of the
compressor to keep the lubricant warm during off cycles.
Improves compressor lubrication on restart and minimizes the
chance of liquid slugging.
Usage Guideline:
Required in low ambient cooling applications.
Required in long line applications.
Suggested in all commercial applications.
5. Cycle Protector
The cycle protector is designed to prevent compressor short
cycling. This control provides an approximate 5--minute delay
after power to the compressor has been interrupted for any
reason, including power outage, protector control trip, thermostat
jiggling, or normal cycling.
6. Evaporator Freeze Thermostat
An SPST temperature--actuated switch that stops unit operation
when evaporator reaches freeze--up conditions.
Usage Guideline:
Required when low ambient kit has been added.
7. Low--Ambient Pressure Switch Kit
A long life pressure switch which is mounted to outdoor unit
service valve. It is designed to cycle the outdoor fan motor in
order to maintain head pressure within normal operating limits
(approximately 100 psig/689.5 KpA to 225 psig/1551.3 KpA.
The control will maintain working head pressure at low--ambient
temperatures down to 0_F (--17.8_C) when properly installed.
Usage Guideline:
A Low --Ambient Pressure Switch or MotorMasterr
Low-- Ambient Controller must be used when cooling operation is
used at outdoor temperatures below 55_F (12.8_C).
8. MotorMasterr Low--Ambient Controller
A fan--speed control device activated by a temperature sensor,
designed to control condenser fan motor speed in response to the
saturated, condensing temperature during operation in cooling
mode only. For outdoor temperatures down to --20_F (--28.9_C),
it maintains condensing temperature at 100_F ±10_F (37.8_C ±
6.5_C).
Usage Guideline:
A MotorMasterr Low Ambient Controller or
Low-- Ambient Pressure Switch must be used when
cooling operation is used at outdoor temperatures
below 55_F (12.8_C).
Suggested for all commercial applications.
9. Outdoor Air Temperature Sensor
Designed for use with Bryant Thermostats listed in this
publ
i
cation. This device enables the thermostat to display the
outdoor temperature. This device also
is required to enable special thermostat features such as auxiliary
heat lock out.
Usage Guideline:
Suggested for all Bryant thermostats listed in this
publication.
REQUIRED FOR
SEA COAST
APPLICATIONS
(Within2miles/3.22km)
124A
5
Accessory Description and Usage (Listed Alphabetically) (Continued)
10. Sound Hood
Wraparound sound reducing cover for the compressor. Reduces
the sound level by about 2 dBA.
Usage Guideline:
Suggested when unit is installed closer than 15 ft (4.57 m) to
quiet areas, bedrooms, etc.
Suggested when unit is installed between two houses less
than 10 ft (3.05 m) apart.
11. Support Feet
Four stick--on plastic feet that raise the unit 4 in. (101.6 mm)
above the mounting pad. This allows sand, dirt, and other debris
to be flushed from the unit base, minimizing corrosion.
Usage Guideline:
Suggested in the following applications:
Coastal installations.
Windy areas or where debris is normally circulating.
Rooftop installations.
For improved sound ratings.
124A
12. Thermostatic Expansion Valve (TXV)
A modulating flow--control valve which meters refrigerant liquid
flow rate into the evaporator in response to the superheat of the
refrigerant gas leaving the evaporator.
Kit includes valve, adapter tubes, and external equalizer tube.
Hard shut off types are available.
NOTE: When using a hard shut off TXV with single phase
reciprocating compressors, a Compressor Start Assist Capacitor
and Relay is required.
Usage Guideline:
Required to achieve ARI ratings in certain equipment
combinations. Refer to combination ratings.
Hard shut off TXV or LLS required in air conditioner
long line applications.
Required for use on all zoning systems.
13. Time--Delay Relay
An SPST delay relay which briefly continues operation of indoor
blower motor to provide additional cooling after the compressor
cycles off.
NOTE: Most indoor unit controls include this feature. For those
that do not, use the guideline below.
14. Winter Start Control
This control is designed to alleviate nuisance opening of the
low--pressure switch by bypassing it for the first 3 minutes of
operation.
Usage Guideline:
For improved efficiency ratings for certain
combinations of indoor and outdoor units. Refer to
ARI Unitary Directory.
6
ELECTRICAL DATA
UNIT
S I Z E ---
SERIES
018 --- C
024 --- D 58.3 13.5 0.5 17.3 14 14 46 (14.0) 43 (13.1) 30
030 --- D 73.0 14.1 0.5 18.1 14 14 44 (13.4) 41 (12.5) 30
036 --- C 79.0 16.7 1.2 22.0 12 12 57 (17.4) 54 (16.5) 35
042 --- D 112.0 17.9 1.2 23.6 12 10 53 (16.2) 50 (15.2) 40
048 --- C 117.0 21.8 1.2 28.4 10 10 70 (21.3) 67 (20.4) 40
060 --- C 134.0 26.4 1.2 34.2 8 8 91 (27.7) 86 (26.2) 50
* Permissible limits of the voltage range at which th e unit will operate satisfactorily
{ If wire is applied at ambient greater th a n 30° C, consult table 310 --- 16 of the NEC (ANSI/NFPA 70). The ampacity of non --- metallic---sheathed cable (NM),
trade name ROMEX, shall be that of 60° C conditions, per the NEC (ANSI/NFPA 70) Article 336 ---26. If other than uncoated (no--- plated), 60 or 75° C
insulation, copper wire (solid wire for 10 AWG or smaller, stranded wire for larger than 10 AWG) is used, consult applicable tables of the NEC (ANSI/NFPA
70).
} Length shown is as measured 1 way along wire path between unit and service panel for voltage drop not to exceed 2%.
* * T ime --- D e l a y f u se.
FLA --- Fu l l L o a d Amp s
LRA --- L o c k ed R o t o r Am p s
MCA --- Minimum Circuit Amps
RLA ---RatedLoadAmps
NOTE: Control circuit is 24--- V on all units and requires external power source. Copper wire must be used from service disconnect to unit.
Complies with 2001 requirements of ASHRAE Standards 90.1
V/PH
208/230/1 253 197
All motors/compressors contain internal overload protection.
OPER
VOLTS*
MAX MIN LRA RLA FLA 60° C 75° C 60° C 75° C
COMPR FAN
48.0 9.0 0.5 11.7 14 14 67 (20.4) 64 (19.5) 15
MCA
MIN
WIRE
SIZE{
MIN WIRE
SIZE{
MAX
LENGTH
ft. (m)}
MAX
LENGTH
ft. (m)}
FUSE**
or CKT
AMPS
A--WEIGHTED SOUND POWER
U N I T S I Z E ---
VOLTAGE,
SERIES
018---C 73 56.0 60.0 65.0 69.0 63.0 60.0 52.5
024---D 74 51.0 60.0 66.5 66.5 64.0 60.0 52.5
030---D 74 53.0 62.0 68.5 69.0 65.5 61.0 54.0
036---C 72 52.0 62.0 65.5 67.5 63.0 61.0 53.5
042---D 74 60.0 65.5 68.5 68.5 65.0 60.0 52.5
048---C 73 59.5 63.5 66.5 67.5 64.0 62.0 55.5
060---C 74 55.5 64.0 67.0 69.0 65.0 60.0 54.5
NOTE: Tested in accordance with ARI Standard 270 --- 95. (Not listed with ARI).
STANDARD
RATING
(dBA)
TYPICAL OCTAVE BAND SPECTRUM (dBA, without tone adjustment)‘
125 250 500 1000 2000 4000 8000
MAX
BRK
124A
CHARGING SUBCOOLING (TXV--TYPE EXPANSION DEVICE)
UNIT SIZE ---VOLTAGE, SERIES REQUIRED SUBCOOLING _F(_C)
018 --- C 10 (5.6)
024 --- D 10 (5.6)
030 --- D 11 (6.1)
036 --- C 10 (5.6)
042 --- D 12 (6.7)
048 --- C 9 (5.0)
060 --- C 9 (5.0)
7
124A
DIMENSIONS -- ENGLISH
8
124A
DIMENSIONS -- SI
9
Wall
6”
A07833
(152.4)
124A
24”
Wall
Clearances (various examples)
Service
12”
(304.8)
6”
Wall
(152.4 mm)
12”
(304.8)
12”
(304.8)
12”
(304.8)
Wall
24”
(609.6)
24”
(609.6)
24”
(609.6)
Service
24”
(609.6)
Service
24”
(609.6)
Service
CLEARANCES
24”
(609.6)
Service
10
24”
(609.6)
Note: Numbers in ( ) = mm
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