Bryant 225A, 225A018-B, 225A024-B, 225A0130-B, 225A042-B, 225A048-B, 225A060-B Product Data
Specifications and Main Features
Frequently Asked Questions
User Manual
MODEL 225A
LEGACYt LINE 15 HEAT PUMP
WITH PURONr REFRIGERANT
1--1/2 TO 5 NOMINAL TONS (SIZES 018 TO 060)
Produc t Data
TM
the environmentally sound refrigerant
Bryant’s heat pumps with Puronr refrigerant provide a collection
of features unmatched by any other family of equipment. The
225A 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.
As an Energy Starr Partner, Bryant Heating & Cooling Systems
has determined that this product meets the Energy Star r
guidelines for energy efficiency. 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.
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 flo w are critical
to achieve rated capacity and effi ciency.
Installation of this product should follow all
manufacturing refrigerant charg ing and air flow
instructions. Failur e to confir m proper charge
and air flow may reduce energy efficiency and
shorten equipment life.
0=Not De-
fined
STANDARD FEATURES
Feature18243036424860
Puron RefrigerantXXXXXXX
15 SEERXXXXXXX
Scroll CompressorXXXXXXX
Louvered Coil GuardXXXXXXX
FieldInstalledFilterDrierXXXXXXX
Front Seating Service ValvesXXXXXXX
Internal Pressure Relief ValveXXXXXXX
Internal Thermal OverloadXXXXXXX
Long Line capabilityXXXXXXX
Low Ambient capability with KitXXXXXXX
Suction Line AccumulatorXXXXXXX
High Pressure SwitchXXXXXXX
Loss of Charge SwitchXXXXXXX
A=
Original
Series
X = Standard
2
PHYSICAL DATA
UNIT SIZE SERIES018---B024 --- B030 ---B036--- B042---B048---B060 --- B
*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 CAPACI TY 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
174
(79.0)
201
(91.2)
219
(99.3)
263
(119.3)
247
(112.0)
283
(128.4)
254
(115.2)
291
(132.0)
280
(127.0)
316
(143.3)
302
(134.0)
341
(154.7)
(155.1)
(173.3)
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 vapor tube diameters based on the
total length to minimize the cooling capacity loss.
342
382
223A
Cooling Capacity Loss (%)
Unit Nominal Size
(Btuh)
18,000
1 --- S t a g e P u r o n H P
24,000
1 --- S t a g e P u r o n H P
30,000
1 --- S t a g e P u r o n H P
36,000
1 --- S t a g e P u r o n H P
42,000
1 --- S t a g e P u r o n H P
48,000
1 --- S t a g e P u r o n H P
60,000
1 --- S t a g e P u r o n H P
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
KSATX0501PURTXV PURON HSOX
x = Accessory S = Standard
* Order through RCD --- Totaline, par t number KHASS0606MPK (qty 6).
DESCRIPTION018---B024-- -B030 --- B036---B042--- B048 -- -B060 --- B
ACCESSORY THERMOSTATS
THERMOSTAT / SUBBASE
PKG.
T 6 --- P R H --- 0 1Programmable Thermidistat
T 6 --- N R H --- 0 1Non --- programmable Thermidistat
T 2 --- P H P --- 0 1Legacy Series Programmable HP Stat
T 2 --- N H P --- 0 1Legacy Series Non ---programmable HP Stat
TSTATBBPRH01--- B*
TSTATBBPHH01--- B*
Thermidistatt Control — Non- -- Programmable/Programmable Thermostat with Humidity Control (For use in
Dual Fuel, AC, HP, and 2S applications. Includes Outdoor Air Temperature Sensor.)
HybridHeatt (Dual Fuel) Thermostat — Auto Changeover, 7 ---Day Programmable, °F/°C, Includes Outdoor
Sensor (TSTATXXSEN01---B)
TSTATBBPHP01---BThermostat — Auto Changeover, 7 ---Day Programmable, °F/°C , 2 --- S t a g e H e a t , 1 --- S t a g e C o o l
TSTATBBNHP01---CThermostat — Auto Changeover, Non --- Programmable, °F/°C , 2 --- S t a g e H e a t , 1 --- S t a g e C o o l
TSTATBBSHP01
TSTATBBBHP01* --- B
Standard Programmable Thermostat—Manual Changeover, 5 --- 2 Day Programmable, °F/°C , 1 --- S t a g e H e a t /
1 --- S t a g e C o o l
Builder’s Thermostat — Heat Pump, Non --- Programmable, °F/°C , 2 --- S t a g e H e a t , 1 --- S t a g e C o o l , M a n u a l
Changeover
TSTATXXSEN01 --- B**Outdoor Air Temperature Sensor
TSTATXXNBP01Backplate for Non --- Programmable Thermostat
TSTATXXPBP01Backplate for Programmable Thermostat and Thermidistatt Control
TSTATXXSBP01Backplate for Standard Programmable Thermostat
TSTATXXBBP01Backplate for Builder’s Thermostat
TSTATXXCNV10{Thermostat Conversion Kit (4 to 5 Wire) — 10 Pack
* D o not use in zoning heat pump applications.
** Outdoor temperature sensor is an accessory for all Bryant electronic thermostats, except the non --- programmable air conditioner version an d builder;s
thermostats. It allows the temperature at a remote location (outdoors) to be displayed on the thermostat. The outdoor air temperature sensor must be used
with the HybridHeatt (dual fuel) thermostat.
{ Thermostat conversion kit is a 24 ---vac accessory that can turn a 4 --- wire thermostat application into a 5 --- wire application. This kit can also be used to
replace a broken thermostat wire, or add an extra wire when needed.
The outdoor air temperature sensor is included with the Thermidistat Control and HybridHeatt (dual fuel) thermostat.
DESCRIPTION
4
ACCESSORY USAGE GUIDELINE
REQUIRED FOR LOW--- AMBIENT
Accessory
AccumulatorStandardStandardStandard
Ball Bearing Fan MotorYe s{NoNo
Compressor Start Assist C apacitor and
Evaporator Freeze ThermostatYe sNoNo
Liquid Line Solenoid ValveNo
Motor Master® Control or
* For tubing line sets between 80 and 200 ft. (24.38 a nd 60.96 m) and/or 20 ft. (6.09 m) vertical differential, refer to Residential Split --- System Longline
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 using 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. 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.
6. Isolation Relay
An SPDT relay which switches the low--ambient controller out of
the outdoor fan motor circuit when the heat pump switches to
heating mode.
Usage Guideline:
Required in all heat pumps where low ambient kit has
been added.
7. 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
the heating mode. See Long Line Guideline.
8. 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.
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).
9. 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.
223A
5
Accessory Description and Usage (Listed Alphabetically) -- CONTINUED
10. 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.
11. 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.
12. Secondary Outdoor Thermostat
An SPDT temperature--actuated switch which turns on
third--stage of supplemental electric heaters when outdoor air
223A
temperature drops below the second-- stage set point.
Usage Guideline:
Outdoor thermostat applications where electric heater is
capable of three--stage operation.
13. 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.
14. 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.
(4.577 m) to quiet areas, bedrooms, etc.
Suggested when unit is installed between two houses
lessthan 10 ft. (3.05 m) apart.
15. 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 ARI rating and system
reliability, where indoor not equipped.
Required in all heat pump applications designed with
Puron refrigerant.
16. 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.
Usage Guideline:
Accessory required to meet ARI rating, where indoor
*Permissible limits of the voltage range at which the unit will operate satisfactorily
{ If wire is applied at ambient greater than 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 i m e --- D e l a y f u s e .
FLA --- F u 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 --- Minimu m 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 2001 requirements of ASHRAE Standards 90.1