186B
EVOLUTIONR16 AIR CONDITIONER
WITH PURONr REFRIGERANT
1--1/2 TO 5 TONS
Product Data
®
the environmentally sound refrigerant
Bryant’s Air Conditioners with Puronr refrigerant provide a
collection of features unmatched by any other family of
equipment. The 186B 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.
This product has been designed and manufactured to meet
Energy Starr criteria for energy efficiency when matched with
appropriate coil components. 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 -- 16 SEER / 11.0-- 13.5 EER
S
SMicrotube Technologyt refrigeration system
SIndoor air quality accessories available
deplete the ozone layer and low lifetime servce cost.
SScroll compressor
SInternal pressure relief valve
SInternal thermal overload
SFilter drier
SHigh and low pressure switches
SBalanced refrigeration system for maximum reliability
Durability
DuraGuard Plust protection package:
SSolid, durable sheet metal construction
SLouvered coil guard
SBaked--on, complete outer coverage, powder paint
Applications
Long--line -- up to 250 feet (76.20 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.)
SLow ambient (down to --20_F/--28.9_C)) with
accessory kit
Page 2
MODEL NUMBER NOMENCLATURE
1234 5 678910111214
NNNAA/NNNNNA/NA/NNA
186B N A018000A
Product
Famil y
1=AC8=
the environmentally sound refrigerant
186B
TierSEERMajor Se-
Evolution
Series
6=16
SEER
Nominal
B=PuronN=
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.
ries
VoltageVariation sCoolin g CapacityOpenOpenOpenMinor
208--- 230--- 1
A=
Standard
0=Not
Defined0=Not
Defined
This product h as been designed and manuf actured to
meet Energy Star ® criteria for energy efficiency when
matched wit h appropriate coil components. However,
proper refri gerant c harge and proper air f low ar e crit ical
to achieve r ated 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.
0=
Not
Defined
STANDARD FEATURES
Feature1824303642486061
Puron RefrigerantXXXXXXXX
Maximum SEER *16.016.016.516.516.016.016.016.0
Scroll CompressorXXXXXXXX
FieldInstalledFilterDrierXXXXXXXX
Fron t Seatin g Se rvice ValvesXXXXXXXX
Internal Pressure Relief ValveXXXXXXXX
Internal Thermal OverloadXXXXXXXX
Long Line capabilityXXXXXXXX
Low Ambient capability with KitXXXXXXXX
High Pressure SwitchXXXXXXXX
Low Pressure SwitchXXXXXXXX
Compressor Sound BlanketXXXXXXXX
Louvered Coil GuardXXXXXXXX
*Based on tested combinations
X=Standard
Series
A=
Original
Series
UNIT SIZE SERIES018--- A024--- A030--- A036- -- A042--- A048 --- A060--- A061 --- A
Max L iquid Line3/8”
*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 f or proper installation.
175.5
(79.6)
212.5
(96.4)
PHYSICAL DATA
176
(79.8)
211.5
(95.9)
186.5
(84.6)
222.5
(100.9)
200
(90.7)
243
(110.2)
2
253
(114.8)
297
(134.7)
295
(113.8)
340
(154.2)
327
(148.3)
373.5
(169.4)
14.50
(6.58)
326
(147.9)
373
(169.2)
14.50
(6.58)
Page 3
REFRIGERANT PIPING LENGTH LIMITATIONS
Liquid Line Sizing and Maximum Total Equivalent Lengths
The maximum allowable length of a residential split system depends on the liquid line diameter and vertical separation between indoor and
outdoor units.
See Table below for liquid line sizing and maximum lengths :
Maximum Total Equivalent Length
Outdoor Unit BELOW Indoor Unit
Liquid
Size
018
AC with
Puron
024
AC with
Puron
030
AC with
Puron
036
AC with
Puron
042
AC with
Puron
048
AC with
Puron
060, 061
AC with
Puron
* 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
AC with Puron Refrigerant Maximum Total Equivalent Length{: Outdoor unit BELOW Indoor
0 --- 5
6 --- 1 0
(1.8---3.0)
11---20
(3.4---6.1)
{
for Cooling Only Systems with Puronr Refrigerant:
Vertical Separation ft (m)
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)
186B
Maximum Total Equivalent Length
Outdoor Unit ABOVE Indoor Unit
Liquid
Size
018
AC with
Puron
024
AC with
Puron
030
AC with
Puron
036
AC with
Puron
042
AC with
Puron
048
AC with
Puron
060, 061
AC with
Puron
* 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
AC with Puron Refrigerant Maximum Total Equivalent Length{: Outdoor unit ABOVE Indoor
25
(7.6)
26---50
(7.9---15.2)
51---75
(15.5---22.9)
Vertical Separation ft (m)
76---100
(23.2---30.5)
101---125
(30.8---38.1)
126---150
(38.4---45.7)
151---175
(46.0---53.3)
176---200
(53.6---61.0)
3
Page 4
REFRIGERANT CHARGE ADJUSTMENTS
Liquid Line SizePuron Charge oz/ft (g/m)
3/8
5/160.40 (11.83)
1/40.27 (7.98)
(Factory charge for lineset = 9 oz / 266.16 g)
0.60 (17.74)
Units are factory charged for 15 ft (4.6 m) of 3/8” liquid line. The factory charge for 3/8” lineset 9 oz. When using other length or diameter
liquid lines, charge adjustments are required per the chart above.
Charging
Formula:
[(Lineset oz/ft x total length) – (factory charge for lineset)] = charge adjustment
Example 1: System has 15 ft of line set using existing 1/4“ liquid line. What charge adjustment is required?
Formula:(.27 oz/ft x 15ft) – (9 oz) = (-4.95) oz.
Net result is to remove 4.95 oz of refrigerant from the system
Example 2: System has 45 ft of existing 5/16” liquid line. What is the charge adjustment?
Formula:(.40 oz/ft. x 45ft) – (9 oz.) = 9 oz.
Net result is to add 9 oz of refrigerant to the system
LONG LINE APPLICATIONS
An application is considered Long Line, when the refrigerant level in the system requires the use of accessories to maintain acceptable
186B
refrigerant management for systems reliability. See Accessory Usage Guideline table for required accessories. 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 Air Conditioner systems, the chart below shows when an application is considered Long Line.
AC WITH PURONr REFRIGERANT LONG LINE DESCRIPTION ft (m)
Beyond these lengths, long line accessories are required
Liquid Line SizeUnits On Same LevelOutdoor Below IndoorOutdoor Above Indoor
1/4
5/16120 (36.6)50 (15.2) vertical or 120 (36.6) total120 (36.6)
3/880 (24.4)35 (10.7) vertical or 80 24.4) total80 (24.4)
Note: SeeLongLineGuidelinefordetails
No accessories n eeded within allowed
lengths
No accessories n eeded within allowed
lengths
175 (53.3)
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:
Vapor Line Sizing and Cooling Capacity Losses — Puronr Refrigerant 1--Stage Air Conditioner Applications
Unit
Nominal
Size (Btuh)
018
1Stage
AC with
Puron
024
1Stage
AC with
Puron
030
1Stage
AC with
Puron
036
1Stage
AC with
Puron
042
1Stage
AC with
Puron
048
1Stage
AC with
Puron
060, 061
1Stage
AC with
Puron
Applications in this area may be long lin e and may have height r estrictions. See the Residential Piping and Long Line Guideline.
SYSTXBBUID01 ---DEvolution Control Deluxe 7 ---Day Programmable (Wall---mounted system control.)
SYSTXBBUIZ01 --- DEvolution Control Deluxe Zoning 7 ---Day Programmable (Wall ---mounted control for a multi---zone system.)
SYSTXBB4ZC01Evolution 4 ---Zone Damper Control Module (Wall ---mounted control for a four ---zone system.)
SYSTXBBSMS01Evolution Smart Sensor (Optional wall control used to monitor temperature and/or fan control in an individual zone.)
SYSTXBBRRS01Evolution Remote Room Sensor (Monitors temperature in an individual zone.)
SYSTXBBRWF01Evolution System Access Module (Hardware for wireless access and control via phone or internet.)
SYSTXBBNIM01
SYSTXBBLBPU01 ---CDecorative Back Plate for Evolution Control (Decorative wall plate.)
Evolution Network Interface Module (Connects Heat Recovery and Energy Recovery Ventilators on non---zoning applications.)
DESCRIPTION
186B
ACCESSORY USAGE GUIDELINE
REQUIRED FOR LONG
LINE
APPLICATIONS*
(Over 80 ft./24.38 m)
ACCESSORY
REQUIRED FOR LOW--- AMBI-
ENT COOLING APPLICATIONS
(Below 55°F/12.8_C)
Compressor Start Assist Capacitor and RelayYesYesNo
Crankcase HeaterYesYesNo
Evaporator Freeze ThermostatYesNoNo
H a r d S h u t --- O f f T X VYesYe sYes
Liquid Line Solenoid ValveNoNoNo
L o w --- a m b i e n t P r e s s u r e S w i t c hYesNoNo
Support FeetRecommendedNoRecommended
Winter Start ControlYesNoNo
* For tubing line sets between 80 an d 200 ft. (24.38 and 60.96 m) and/or 35 ft. (10.7 m) vertical differential, refer to Residential Piping a nd Longline Guideline.
{ Required for Low ---Ambient Controller (full modulation feature) MotorMasterr Control.
REQUIRED FOR
SEA COAST
APPLICATIONS
(Within2miles/3.22km)
5
Page 6
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. Compressor Start Assist — PTC Type
Solid state electrical device which gives a ”soft” boost to the
186B
compressor at each start--up.
Usage Guideline:
Suggested in installations with marginal power supply.
3. 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.
4. 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.
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. 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 to 225 psig). The control will maintain
working head pressure at low--ambient temperatures down to 0_F
(--18_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).
7. 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.
8. 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.
9. 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 AHRI 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.
10. 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:
For improved efficiency ratings for certain
combinations of indoor and outdoor units. Refer to
AHRI Unitary Directory.
12. 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.
* 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 (NFPA 70). The ampacity of non ---metallic---sheathed cable (NM), 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 one 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
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.
All motors/compressors contain internal overload protection.
Complies with 2007 requirements of ASHRAE Standards 90.1
186B018AXOOO792.5729.395.619.1166.1626.3231.370.912.8393.7431.8355.679.696.4821.2 X 901.2 X 826.8
46.7
SQ.
A
AIR DISCHARGE
X = YES
O=NO
460-3-60
208/230-3-60
230-1-60
208-230-1-60
88.9
22.23 HOLE
SUPPLY CONN.
FIELD CONTROL
28.58 KNOCKOUT
CONN.
FIELD POWER SUPPLY
C
B
186B024AXOOO792.5729.395.619.1166.1626.3231.370.912.8412.8387.4355.679.895.9821.2 X 901.2 X 826.8
186B030AXOOO792.5815.695.619.1166.1626.3231.370.912.8381.0400.1374.784.6100.9821.2 X 901.2 X 913.2
186B036AXO00889.0763.997.922.2166.1722.8231.374.516.3431.8425.5355.690.7110.2917.7 X 997.7 X 913.2
186B042AXOOO889.01022.997.922.2166.1722.8231.374.516.3431.8406.4469.9114.8134.7917.7 X 997.7 X1172.2
186B048AXO00889.01022.997.922.2166.1722.8231.374.516.3444.5412.8457.2133.8154.2917.7 X 997.7 X 1172.2
186B060AXO00889.01195.797.922.2166.1722.8231.374.516.3444.5438.2533.4148.3169.4917.7 X 997.7 X 1315.7
186B061AXOOO889.01195.797.922.2166.1722.8231.374.516.3438.2431.8533.4147.9169.2917.7 X 997.7 X 1315.7
MINIMUM
DIMENSIONS
D
VAPOR LINE CONN.
MOUNTING PAD
UNIT SIZE
-660.4 X 660.4
018,24,30800.1 X 800.1
DIMENSIONS -- SI
9
Page 10
Wall
6”
(152.4)
186B
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
IMPORTANT: When installing multiple units in an alcove, roof well, or partially enclosed area, ensure there is adequate ventilation to prevent re--circulation of discharge air.
Page 11
TESTED AHRI COMBINATION RATINGS
NOTE: Ratings contained in this document are subject to change at any time.
For AHRI ratings certificates, please refer to the AHRI directory www.ahridirectory.org
Additional ratings and system combinations can be accessed via the Bryant database at:
* AHRI = A ir C onditioning, Heating & Refrigeration Institute
EER — Energy Efficiency Ratio
SEER — Seasonal Energy Efficiency Rat io
TDR — Time---DelayRelay. Inmostcases,only1methodshouldbeusedtoachieveTDRfunction.Usingmorethan1methodinasystemmaycausedegradationinperformance.
NOTES:
1. Ratings are net values reflecting the effects of circulating fan motor heat. Supplemental electric heat is not i ncluded.
2. Tested outdoor/indoor combinations have been tested in accordance with DOE t est procedures for central air conditioners. Ratings for other combinations are determined under DOE
3. Determine actual CFM values obtainable for your system by referring to fan performance data in fan coil or furnace coil literature.
4. Do not apply with capillary tube coils as performance and reliability are affected.
Use either the a ccessory Time ---Delay Relay KAATD0101TDR or a furnace equipped with TDR. Most Bryant furnaces are equipped with TDR.
computer simulation procedures.
186B
11
Page 12
Sys.
Tot a l
KW**
Sys.
Tot a l
KW**
186B
Capacity MB tuh
Sys.
Tot a l
KW**
Capacity MB tuh
Sys.
Tot a l
KW**
Capacity MB tuh
Sys.
Tot a l
KW**
Capacity MB tuh
Sys.
Tot a l
KW**
Capacity MB tuh
Sys.
Tot a l
KW**
Capacity MB tuh
Sys.
Tot a l
KW**
CONDENSER ENTERIN G AI R T EMPERATURES ° F (° C)
Capacity MB tuh
Sys.
Tot a l
KW**
186BNA018****A Outdoor Section With CNPV*1917A** +TDR Indoor Section
per 1000 CFM (480 L/S) of indoor coil air per degree above 80_F(27_C).
* Tested combination.
{ Total and sensible capacities are net capacities. Blower motor heat has been subtracted.
} Sensible capaciti es shown a re ba sed o n 80 _F(27_C) entering air at the indoor coil. For sensible capacities at other than 80_F(27_C), deduct 835 Btuh (245 kW) per 1000 CF M (480 L/S) of indoor coil air for each degree below 80_F(27_C), or add 835 Btuh (245 kW)
# Detailed cooling capacities are based on indoor and outdoor unit at the same elevation per AHRI standard 210/240 --- 2008. If additional tubing length a nd/or indoo r unit is lo cated above o utdoor unit, a slight variation i n capacity may o ccur.
** System kw is total of indoor and outdoor unit kilowatts.
{{ At TVA rating indoor condition (75_F edb/63_F e wb). All other indoor ai r te mperatures are a t 8 0_F edb.
NOTE: When the required data falls between the published data, interpolation may be performed. Extrapolation is not an acceptable practice.
Outdoor--mounted, air--cooled, split--system air conditioner
unit suitable for ground or rooftop installation. Unit consists
of a hermetic compressor, an air--cooled coil, propeller--type
condenser fan, and a control box. Unit will discharge supply
air upward as shown on contract drawings. Unit will be used
in a refrigeration circuit to match up to a packaged fan coil
or coil unit.
Quality Assurance
— Unit will be rated in accordance with the latest edition of
AHRI Standard 210.
— Unit will be certified for capacity and efficiency, and listed
in the latest AHRI directory.
— Unit construction will comply with latest edition of ANSI/
ASHRAE and with NEC.
— Unit will be constructed in accordance with UL standards
and will carry the UL label of approval. Unit will have
c--UL approval.
— Unit cabinet will be capable of withstanding Federal Test
Method Standard No. 141 (Method 6061) 500--hr salt
spray test.
— Air--cooled condenser coils will be leak tested and pressure
tested.
— Unit constructed in ISO9001 approved facility.
Delivery, Storage, and Handling
— Unit will be shipped as single package only and is stored
and handled per unit manufacturer’s recommendations.
Warranty (for inclusion by specifying engineer)
— U.S. and Canada only.
PRODUCTS
Equipment
— Factory assembled, single piece, air--cooled air conditioner
unit. Contained within the unit enclosure is all factory
Puronr (R--410A), and special features required prior to
field start--up.
Cabinet
Unit
— Unit cabinet, including louvered coil guard, will be
constructed of galvanized steel, bonderized, and coated
with a powder coat paint.
Fans
— Condenser fan will be direct--drive foward--swept
propeller type, discharging air upward.
AIR--COOLED, SPLIT--SYSTEM AIR CONDITIONER
1--1/2 TO 5 NOMINAL TONS
— Condenser fan motors will be totally enclosed, 1--phase
type with class B insulation and permanently lubricated
bearings. Shafts will be corrosion resistant.
— Fan blades will be statically and dynamically balanced.
— Condenser fan openings will be equipped with coated steel
wire safety guards.
Compressor
— Compressor will be hermetically sealed.
— Compressor will be mounted on rubber split--post vibration
isolators.
— Compressor will be covered with a sound absorbing
blanket.
Condenser
Refrigeration
Operating Characteristics
Electrical Requirements
Special Features
Coil
— Condenser coil will be air cooled.
— Coil will be constructed of aluminum fins mechanically
bonded to copper tubes which are then cleaned,
dehydrated, and sealed.
Components
— Refrigeration circuit components will include liquid--line
back--seating shutoff valve with sweat connections,
vapor--line back--seating shutoff valve with sweat
connections, system charge of Puronr (R--410A)
refrigerant, and compressor oil.
— Unit will be equipped with high--pressure switch, low
pressure switch and filter drier for Puron refrigerant.
— The capacity of the unit will meet or exceed _____ Btuh at
a suction temperature of ______F/_C. The power
consumption at full load will not exceed _____ kW.
— Combination of the unit and the evaporator or fan coil unit
will have a total net cooling capacity of _____ Btuh or
greater at conditions of _____ CFM entering air
temperature at the evaporator at _____ _F/_C wet bulb and
_____ _F/_C dry bulb, and air entering the unit at _____
_F/_C.
— The system will have a SEER of _____ Btuh/watt or
greater at DOE conditions.
— Nominal unit electrical characteristics will be _____ v,
single phase, 60 hz. The unit will be capable of satisfactory
operation within voltage limits of _____ v to _____ v.
— Unit electrical power will be single point connection.
— Control circuit will be 24v.
— Refer to section of this literature identifying accessories
and descriptions for specific features and available
enhancements.
186B
186B
19
Page 20
SYSTEM DESIGN SUMMARY
1. Intended for outdoor installation with free air inlet and outlet. Outdoor fan external static pressure available is less than 0.01--in. wc.
2. Minimum outdoor operating air temperature without low--ambient operation accessory is 55_F (12.8_C).
3. Maximum outdoor operating air temperature is 125_F (51.7_C).
4. For reliable operation, unit should be level in all horizontal planes.
5. For interconnecting refrigerant tube lengths greater than 80 ft (23.4 m) and/or 35 ft (10.7 m) vertical differential, consult Residential
Piping and Longline Guideline and Service Manual available from equipment distributor.
6. If any refrigerant tubing is buried, provide a 6 in. (152.4 mm) vertical rise to the valve connections at the unit. Refrigerant tubing
lengths up to 36 in. (914.4 mm) may be buried without further consideration. Do not bury refrigerant lines longer than 36 in. (914.4
mm).
7. Use only copper wire for electric connection at unit. Aluminum and clad aluminum are not acceptable for the type of connector
provided.
8. Do not apply capillary tube indoor coils to these units.
9. Factory--supplied filter drier must be installed.
186B
EBryant Heating & Cooling Systems 7310 W. Morris St. Indianapolis, IN 46231Edition Date: 09/12
Manufacturer reserves the right to di scontinue, or change at any ti me, specifications or designs without notice a nd without incurring obl igations.
Catalog No. PDS186B--- 03
Replaces: PDS186B--- 02
20
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