Bryant PREFERRED 226A Series Operation manual

Product Data
MODEL 226A
PREFERREDSERIES 2--STAGE HEAT PUMP
WITH PURONREFRIGERANT
2 TO 5 NOMINAL TONS
the environmentally sound refrigerant
TM
Bryant’s heat pumps with Puronrrefrigerant provide a collection
of features unmatched by any other family of equipment. The
226A has been designed utilizing Bryant’s Puron refrigerant. The
environmentally sound refrigerant allows consumers to make a
responsible decision in the protection of the earth’s ozone layer.
This product has been designed and manufactured to meet Energy
Starrcriteria for energy efficiency when matched with appropriate
coil components. Refer to the combination ratings in the Product
Data for system combinations that meet Energy Starrguidelines.
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
Energy Efficiency
S13.7 -- 17.2 SEER/11.2 -- 13.5 EER/8.0 -- 9.5 HSPF
SMicrotube Technologytrefrigeration system
SIndoor air quality accessories available
Sound
SSound level as low as 70 dBA
Comfort
SSystem supports Thermidistattor standard 2--stage thermostat
controls
Reliability
SPuronrrefrigerant -- environmentally sound, won’t deplete the
ozone layer and low lifetime service cost.
SFront--seating service valves
S2--stage scroll compressor
SInternal pressure relief valve
SInternal thermal overload
SHigh pressure switch
SLoss of charge switch
SFilter drier
SBalanced refrigeration system for maximum reliability
Durability
DuraGuard Plustprotection package:
SSolid, Durable sheet metal construction
SSteel louver coil guard
SBaked--on, complete outer coverage, powder paint
Applications
SLong--line -- up to 250 feet (76.2 m) total equivalent 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.)

2
MODEL NUMBER NOMENCLATURE
12345 678910111214
N N N A A/N N N N N A/N A/N N A
226AN A03600 0 A
Product
Family
Tier SEER Major
Series
Voltage Variations Cooling Capacity Open Open Open Series
2=HP 2=
Legacy
Series
6=16 SEER A=Puron N=
208---230---1
or 208/230---1
A=Standard 0=Not
Defined
0=Not
Defined
0=Not
Defined
A = Original
Series
the environmentally sound refrigerant
This product has been designed and manufactured to
meet Energy Starcriteria for energy efficiency when
matched with appropriate coil components. However,
proper refrigerant charge and proper air flow are critical
to achieve rated capacity and efficiency. 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 equipment life.
Use of the AHRI Certified
TM Mark indicates a
manufacturer’s
participation in the
program For verification
of certification for individual
products, go to
www.ahridirectory.org.
STANDARD FEATURES
FEATURES
Unit Size --- Voltage, Series
024---B 036---B 048---B 060---C
Puron Refrigerant X X X X
Maximum SEER Rating* 17.2 17.0 16.5 16.0
2--- Stage Scroll Compressor X X X X
Louvered Coil Guard X X X X
FieldInstalledFilterDrier X X X X
Front Seating Service Valves X X X X
Internal Pressure Relief Valve X X X X
Long Line capability X X X X
Loss of Charge Switch X X X X
High Pressure Switch X X X X
Crankcase Heater X X X X
X=Standard
* With approved combinations
226A

3
PHYSICAL DATA
UNIT SIZE SERIES 024 --- B 036 --- B 048 --- B 060--- C
Operating Weight lb (kg) 257 (117) 269 (122) 295 (134) 322 (146)
Shipping Weight lb (kg) 301 (137) 313 (142) 339 (154) 368 (167)
Compressor Type UltratechrScroll
REFRIGERANT Puronr(R---410A)
Control TXV (Puron Hard Shutoff)
Charge lb (kg) 13.07 (5.93) 13.70 (6.21) 13.73 (6.23) 14.78 (6.70)
Outdoor Htg Piston # 46 55 61 67
COND FAN Propeller Type, Direct Drive
Air Discharge Vertical
Air Qty (CFM) 3200 3200 4350 5000
Motor HP 1/12 1/12 1/4 1/4
Motor RPM 800 800 825 825
COND COIL
Face Area (Sq ft) 25.2 25.2 25.2 30.18
Fins per In. 20 20 20 20
Rows 2 2 2 2
Circuits 88810
VALVECONNECT.(In.ID)
Vapor 3/4 7/8 7/8 7/8
Liquid 3/8
REFRIGERANT TUBES (In. OD)
Rated Vapor* 3/4 7/8 1 --- 1 / 8 1 --- 1 / 8
Max Liquid Line 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.
Note: See unit Installation Instruction for proper installation.
VAPOR LINE SIZING AND COOLING CAPACITY LOSS
Acceptable vapor line diameters provide adequate oil return to the compressor while avoiding excessive capacity loss. The suction line
diameters shown in the chart below are acceptable for AC systems with Puron refrigerant:
Unit
Nominal
Size
(Btuh)
Maximum
Liquid Line
Diameters
(In. OD)
Vapor Line
Diameters
(In.) OD
Cooling Capacity Loss (%)
Total Equivalent Line Length ft. (m)
Standard
Application Long Line Application Requires Accessories
26 --- 50
(7.9---15.2)
51 --- 80
(15.5---24.4)
81 --- 100
(24.7---30.5)
101 --- 125
(30.8---38.1)
126 --- 150
(38.4---45.7)
151 --- 175
(46.0---50.3)
176 --- 200
(53.6---60.0)
201 --- 225
(61.3---68.6)
226 --- 250
(68.9---76.2)
24,000
2 --- S t a g e
HP with
Puron
3/8
5/8 0 1 1 2 3 3 4 4 5
3/4 0 1 1 1 1 1 1 1 1
36,000
2 --- S t a g e
HP with
Puron
3/8
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 — — — — — — —
48,000
2 --- S t a g e
HP with
Puron
3/8
3/4 1 2 2 3 4 5 6 7 7
7/8 0 1 1 2 2 2 3 3 4
1 --- 1 / 8 0 0 — — — — — — —
60,000
2 --- S t a g e
HP with
Puron
3/8
3/4 1 2 4 5 6 8 9 10 11
7/8 0 1 2 2 3 4 4 5 5
1 --- 1 / 8 0 0 — — — — — — —
Standard Length = 80 ft. (24.4 m) or less total equivalent length
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.
— Applications in this area are not recommended due to insuficient oil return.
226A

4
REFRIGERANT PIPING LENGTH LIMITATIONS
Maximum Line Lengths:
The maximum allowable total equivalent length for heat pumps varies depending on the vertical separation. See the tables below for
allowable lengths depending on whether the outdoor unit is on the same level, above or below the outdoor unit.
Maximum Line Lengths for Heat Pump Applications
MAXIMUM ACTUAL LENGTH
ft (m)
MAXIMUM EQUIVALENT LENGTH{
ft (m)
MAXIMUM VERTICAL SEPARA-
TION ft (m)
Units on equal level 200 (61) 250 (76.2) N/A
Outdoor unit ABOVE
indoor unit 200 (61) 250 (76.2) 200 (61)
Outdoor unit BELOW
indoor unit See Table ’Maximum Total Equivalent Length: Outdoor Unit BELOW Indoor Unit’
{Total equivalent length accounts for losses due to elbows or fitting. See the Long Line Guideline for details.
Maximum Total Equivalent Length{-- Outdoor Unit BELOW Indoor Unit
Size
Liquid Line
Diameter
w/ TXV
HP with PuronrRefrigerant --- Maximum Total Equivalent Length{
Vertical Separation ft (m) Outdoor unit BELOW indoor unit;
0 --- 2 0
(0 --- 6.1)
21 --- 30
(6.4 --- 9.1)
31 --- 40
(9.4 --- 12.2)
41 --- 50
(12.5 --- 15.2)
51 --- 60
(15.5 --- 18.3)
61 --- 70
(18.6 --- 21.3)
71 --- 80
(21.6 --- 24.4)
024
HP with
Puron
3/8 250* 250* 250* 250* 250* 250* 250*
036
HP with
Puron
3/8 250* 250* 250* 250* 250* 250* 250*
048
HP with
Puron
3/8 250* 250* 250* 250* 230 160 --- ---
060
HP with
Puron
3/8 250* 225* 190 150 110 --- --- --- ---
* Maximum actual length not to exceed 200 ft (61 m)
{Total equivalent length accounts for losses due to elbows or fitting. See the Long Line Guideline for details.
--- --- = o u t s i d e a c c e p t a b l e r a n g e
LONG LINE APPLICATIONS
An application is considered Long Line when the refrigerant level in the system requires the use of accessories to maintain acceptable
refrigerant management for systems reliability. Defining a system as long line depends on the liquid line diameter, actual length of the tubing,
and vertical separation between the indoor and outdoor units.
For Heat Pump systems, the chart below shows when an application is considered Long Line. Beyond these lengths, long line accessories
are required:
HP WITH PURONrREFRIGERANT LONG LINE DESCRIPTION ft (m)
Beyond these lengths, long line accessories are required
Liquid Line Size Units On Same Level Outdoor Below Indoor Outdoor Above Indoor
3/8 80 (24.4) 20 (6.1) vertical or 80 (24.4) total 80 (24.4)
Note: SeeLongLineGuidelinefordetails
THERMOSTATS
PAR T NU MBER PROGRAM ELECTRIC HEAT PUMP HEAT COOL
T2 ---PHP01 5 --- 2 D a y √√3 2
T 2 --- N H P 0 1 NP √√3 2
T2SNHP01 NP √√2 1
THERMOSTAT ACCESSORIES
PAR T NU MBER BRIEF DESCRIPTION THERMOSTATS USED WITH
TSTATXXCNV10 Thermostat Conversion Kit (4 to 5 wire) --- 10 pack All Bryantrbranded thermostats
T X --- L B P 0 1 LargeDecorativeBackplate T 6 --- P x x , T 6 --- N x x , a n d T 2 --- P x x
T X --- M B P 0 1 Medium Decorative Backplate T 2 --- N x x a n d T 1 --- P x x
226A

5
ACCESSORIES
KIT NUMBER KIT NAME 024 --- B 036 --- B 048 --- B 060 --- C
KHALS0401LLS SOLENOID VALVE X X X X
KHASS0606MPK* SNOW STAND X X X X
KSAHS2501AAA{HARD START KIT X X
KSAHS2801AAA{HARD START KIT X X
KSASF0101AAA SUPPORT FEET X X X X
KSASH2301COP SOUND BLANKET X X
KSASH2401COP SOUND BLANKET X X
x = Accessory S = Standard
*AvailablefromRCD
{Not backward compatible to previous series.
ACCESSORY USAGE GUIDELINE
Accessory REQUIRED FOR
LONG LINE APPLICATIONS*
REQUIRED FOR
SEA COAST APPLICATIONS
(Within 2 miles / 3.22 km)
Accumulator Standard Standard
Compressor Start Assist Capacitor and Relay Ye s No
Crankcase Heater Standard Standard
Hard Shutoff TXV Ye s
(Standard with factory ---approved indoor unit) Ye s
Liquid Line Solenoid Valve See Long---Line Application Guideline No
Support Feet Recommended Recommended
* For tubing line sets between 80 and 200 ft. (24.38 and 60.96 m) and/or 20 ft. (6.09 m) vertical differential, refer to Residential Piping and Longline Guideline.
Accessory Description and Usage (Listed Alphabetically)
1. 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.
2. 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.
3. Liquid--Line Solenoid Valve (LLS)
An electrically operated shutoff valve which stops and starts
refrigerant liquid flow in response to compressor operation. It is to
be installed at the outdoor unit to control refrigerant off cycle
migration in the heating mode.
Usage Guideline:
An LLS is required in all long line heat pump
applications to control refrigerant off cycle migration in
t he heating mode. See Long Line Guideline.
Suggested for all commercial applications.
4. Outdoor Air Temperature Sensor
Designed for use with Bryant Thermostats listed in this
publication. 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.
5. Outdoor Thermostat
An SPDT temperature--actuated switch which turns on
supplemental electric heaters when outdoor air temperature drops
below a user--selected set point.
Usage Guideline:
Electric supplemental heat applications in non--variable
speed indoor units when electric heat staging is desired.
6. Secondary Outdoor Thermostat
An SPDT temperature--actuated switch which turns on third--stage
of supplemental electric heaters when outdoor air temperature
drops below the second--stage set point.
Usage Guideline:
Outdoor thermostat applications where electric heater is
capable of three--stage operation.
7. Snow Stand
Coated wire rack which supports unit 18 in. (457.2 mm) above
mounting pad to allow for drainage from unit base.
Usage Guideline:
Suggested in the following applications:
Heat pump installations in heavy snowfall areas.
Heat pump installations in snow drift locations.
Heat pump installations in areas of prolonged
subfreezing temperatures.
All commercial installations.
8. Thermostatic Expansion Valve (TXV) Bi--Flow
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.
Usage Guideline:
Accessory required to meet AHRI rating and system
reliability, where indoor not equipped.
Required in all heat pump applications designed with
Puron refrigerant.
226A

6
ELECTRICAL DATA
UNIT
S I Z E ---
VOLTAGE,
SERIES
V/PH
OPER VOLTS* COMPR FAN
MCA
MIN
WIRE
SIZE{
MIN
WIRE
SIZE{
MAX
LENGTH
ft (m)}
MAX
LENGTH
ft (m)}
MAX
FUSE*
*or
CKT
BRK
AMPS
MAX MIN LRA RLA FLA 60C75C60C75C
024 --- B
208---230/1 253 197
58.3 12.5 0.6 16.2 14 14 48 (14.8) 46 (14.1) 25
036 --- B 83.0 18.5 0.6 23.7 12 12 52 (16.0) 50 (15.3) 40
048 --- B 104.0 22.8 1.3 29.8 10 10 67 (20.4) 63 (19.4) 50
060 --- C 152.9 28.8 1.5 37.5 8 8 82 (25.2) 78 (24.0) 60
* Permissible limits of the voltage range at which the unit will operate satisfactorily
{If wire is applied at ambient greater than 30_C , c o n s u l t t a b l e 3 1 0 --- 1 6 o f t h e N E C ( N F PA 7 0 ) . T h e a m p a c i t y o f n o n --- m e t a l l i c --- s h e a t h e d c a b l e ( N M ) ,
trade name ROMEX, shall be that of 60_C conditions, per the NEC (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 (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 i m e --- D e l a y f u s e .
FLA --- Fu l l L o a d A m p s
LRA --- L o c k e d R o t o r A m p s
M C A --- 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.
All motors/compressors contain internal overload protection.
Complies with 2010 requirements of ASHRAE Standards 90.1
SOUND POWER LEVEL (dBA)
Unit Size
--- V o l t a g e ,
Series
Standard Rating dBA
TYPICAL OCTAVE BAND SPECTRUM (dBA, without tone adjustment)
125 250 500 1000 2000 4000 8000
024 --- B 7 3 --- H i g h S t a g e 51.5 55.0 63.5 69.0 62.0 58.5 56.0
7 0 --- L o w S t a g e 51.5 55.5 63.0 66.0 62.0 59.0 54.0
036 --- B 7 4 --- H i g h S t a g e 54.5 57.5 65.0 70.5 62.5 60.0 57.0
7 1 --- L o w S t a g e 54.0 57.5 63.5 66.0 61.0 60.5 55.0
048 --- B 7 5 --- H i g h S t a g e 53.5 59.5 66.0 70.5 64.0 61.5 55.0
7 1 --- L o w S t a g e 54.0 59.5 66.0 66.0 63.0 61.5 55.5
060 --- C 7 4 --- H i g h S t a g e 51.5 58.0 66.0 68.0 64.5 63.0 61.5
7 3 --- L o w S t a g e 53.0 58.5 66.5 68.0 64.5 63.0 58.5
NOTE: Tested in compliance with AHRI 270 ---2008 but not listed with AHRI.
SOUND POWER LEVEL (dBA) WITH ACCESSORY SOUNDSHIELD
Unit Size
--- V o l t a g e ,
Series
Standard Rating dBA
TYPICAL OCTAVE BAND SPECTRUM (dBA, without tone adjustment)
125 250 500 1000 2000 4000 8000
024 --- B 7 1 --- H i g h S t a g e 50.0 55.0 63.0 68.0 61.5 57.5 52.0
7 0 --- L o w S t a g e 50.5 56.0 63.0 66.0 61.5 58.0 51.5
036 --- B 7 2 --- H i g h S t a g e 54.5 57.0 64.5 69.0 61.5 58.5 53.0
7 0 --- L o w S t a g e 55.5 56.5 63.0 65.0 60.5 59.0 52.0
048 --- B 7 4 --- H i g h S t a g e 54.0 59.5 66.0 70.0 63.0 59.0 51.5
7 0 --- L o w S t a g e 53.5 59.0 65.5 65.0 62.5 60.5 54.0
060 --- C 7 3 --- H i g h S t a g e 52.0 58.5 66.0 68.0 64.0 60.5 56.5
7 2 --- L o w S t a g e 54.0 58.0 66.0 67.5 64.0 61.0 55.0
NOTE: Tested in compliance with AHRI 270 ---2008 but not listed with AHRI.
CHARGING SUBCOOLING (TXV--TYPE EXPANSION DEVICE)
UNIT SIZE --- VOLTAGE, SERIES REQUIRED SUBCOOLING _F(_C)
024 --- B 10 (5.6)
036 --- B 13 (7.2)
048 --- B 12 (6.7)
060 --- C 11 (6.1)
226A

7
DIMENSIONS -- ENGLISH
226A

8
DIMENSIONS -- SI
226A

9
226A BALANCE POINT WORKSHEET -- HIGH STAGE
0
10 20 30 40 50 60 70 80
226ANA060
FV4CNB006
226ANA048
FV4CN(B,F)005
226ANA036
FV4CNB006
226ANA024
FV4CNF002
-10 (-23.3) 0 (-17.8) 10 (-12.2) 20 (-6.7) 30 (-1.1) 40 (4.4) 50 (10.0) 60 (15.6) 70 (21.1) 80 (26.7)
OUTDOOR TEMPERATURE, ºF( ºC)
BASED ON INDOOR ENT. AIR AT 70ºF 21.1ºC AND AT RATED CFM
BUILDING HEAT LOSS, UNIT INTEGRATED
HEATING CAPACITY, MBTUH
226A

10
226A BALANCE POINT WORKSHEET -- LOW STAGE
0
10 20 30 40 50 60
226ANA060
FV4CNB006
226ANA048
FV4CN(B,F)005
226ANA036
FV4CNB006
226ANA024
FV4CNF002
-10 (-23.3) 0 (-17.8) 10 (-12.2) 20 (-6.7) 30 (-1.1) 40 (4.4) 50 (10.0) 60 (15.6) 70 (21.1) 80 (26.7)
OUTDOOR TEMPERATURE, ºF( ºC)
BUILDING HEAT LOSS, UNIT INTEGRATED
HEATING CAPACITY, MBTUH
BASED ON INDOOR ENT. AIR AT 70ºF 21.1ºC AND AT RATED CFM
226A