Carrier Infinity 25HNB6 Operation manual

Product Data

25HNB6

Infinityt1 6 2 --- S t a g e H e a t P u m p

with PuronrRefrigerant

2to5NominalTons

Carrier’s heat pumps with Puronrrefrigerant provide a collection

of features unmatched by any other family of equipment. The

25HNB6 has been designed utilizing Carrier’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

S13.5 -- 17.2 SEER/11.0 -- 13.5 EER/8.0 -- 9.6 HSPF

SMicrotube Technologytrefrigeration system

SIndoor air quality accessories available

Sound

SSound level as low as 67 dBA

SQuiet mount split post compressor grommets

SForward--swept condenser fan blade

SCompressor sound hood

SLaminated steel compressor mounting plate

S8 pole PSC ball bearing outdoor condenser fan motor

Comfort

SSystem supports Infinity Controltor 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

SCrankcase heater standard

Durability

WeatherArmortprotection package:

SSolid, Durable sheet metal construction

SSteel louver coil guard

SBaked--on, complete outer coverage, powder paint

Controls and Diagnostics

SInfinitytControl or Thermostat

SUtility Interface Connection

SUp to 83 point diagnostic capability with InfinitytControl

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.)

MODEL NUMBER NOMENCLATURE

12 3 4 5 6 78 9 10 11 12 13

N N A A A/N N N N A/N A/N A/N N N

25 H N B 6 36 A 0 0 3 0

Product

Series

Product

Family Tier Major

Series SEER Cooling

Capacity Variations Open Open Voltage Minor

Series

25=HP H=RESHP N=

Infinity Series B = Puron 6=16 SEER 1,000 Btuh

(nominal) A=Standard 0=Not

Defined

0=Not

Defined 3=208/230---1 0, 1, 2...

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.

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.

STANDARD FEATURES

FEATURES

Unit Size --- Voltage, Series

24---30 36---30 48---30 60---30

Puron Refrigerant X X X X

Maximum SEER Rating* 16.5 17.2 16.4 15.8

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

Low ambient cooling down to 0_F capability

with Infinity Control X X X X

Utility Interface Connections X X X X

Enhanced Diagnostics with Infinity Control X X X X

Sound Blanket X X X X

X=Standard

* With approved combinations

PHYSICAL DATA

UNIT SIZE SERIES 24 --- 30 36 --- 30 48 --- 30 60 --- 30

Operating Weight lb (kg) 314 (142) 316 (143) 316 (143) 372 (169)

Shipping Weight lb (kg) 358 (162) 360 (163) 360 (163) 417 (189)

Compressor Type UltratechrScroll

REFRIGERANT Puron®(R---410A)

Control TXV (Puron®Hard Shutoff)

Charge lb (kg) 14.0 (6.35) 14.10 (6.40) 14.25 (6.46) 15.45 (7.01)

Outdoor Htg Piston # 46 57 61 67

COND FAN Forward Swept Propeller Type, Direct Drive

Air Discharge Vertical

Air Qty (CFM) 3200 3900 4350 5000

Motor HP 1/12 1/8 1/4 1/4

Motor RPM 800 800 800 800

COND COIL

Face Area (Sq ft) 25.15 25.15 25.15 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.

25HNB6

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

25HNB6

ACCESSORIES

KIT NUMBER KIT NAME 24 --- 30 36 --- 30 48--- 30 60 --- 30

KHALS0401LLS SOLENOID VALVE X X X X

KHASS0606MPK* SNOW STAND X X X X

KSAHS2301AAA HARD START KIT X

KSAHS2401AAA HARD START KIT X

KSAHS2501AAA HARD START KIT X

KSAHS2601AAA HARD START KIT X

KSASF0101AAA SUPPORT FEET X X X X

KSATX0201PUR TXV X

KSATX0301PUR TXV X

KSATX0401PUR TXV X

KSATX0501PUR TXV X

x = Accessory S = Standard * Available from RCD

ACCESSORY CONTROLS

PART NO. DESCRIPTION

SYSTXCCUID01-V Infinity Control Deluxe 7-Day Programmable (Wall-mounted system control.)

SYSTXCCUIZ01-V Infinity Control Deluxe Zoning 7-Day Programmable (Wall-mounted control for a multi-zone system.)

SYSTXCC4ZC01 Infinity 4-Zone Damper Control Module (Wall-mounted control for a four-zone system.)

SYSTXCCSMS01 Infinity Smart Sensor (Optional wall control used to monitor temperature and/or fan control in an individual zone.)

SYSTXCCRRS01 Infinity Remote Room Sensor (Monitors temperature in an individual zone.)

SYSTXCCRCT01 or

SYSTXCCRWF01 Infinity System Access Module (Hardware for wireless access and control via internet.)

SYSTXCCNIM01 Infinity Network Interface Module (Connects Heat Recovery and Energy Recovery Ventilators on Non-zoning applications.)

SYSTXXXBPU01 Decorative Back Plate for Infinity Control (Decorative wall plate.)

25HNB6

ACCESSORY USAGE GUIDELINE

ACCESSORY

REQUIRED FOR

LOW--- AMBIENT COOLING APPLICA-

TIONS

(Below 55°F/12.8_C)

REQUIRED FOR LONG LINE AP-

PLICATIONS*

(Over 80 ft/24.38 m)

REQUIRED FOR SEA COAST

APPLICATIONS (Within 2

miles/3.22 km)

Crankcase Heater Standard Standard Standard

Evaporator Freeze Protection

Standard with InfinitytControl

(Low Ambient not allowed with non ---

communicating thermostat)

No No

Liquid---Line Solenoid Valve No Yes No

Low--- Ambient Control

Standard with Infinity Control (Low am-

bient not allowed with non ---communic-

ating thermostat)

No No

Puron Refrigerant Balance Port Hard ---

ShutOff TXV Ye s {Ye s{Ye s {

Support Feet Recommended No Recommended

Winter Start Control

Standard with Infinity Control

(Low Ambient not allowed with non ---

communicating thermostat)

No No

* For tubing set lengths between 80 and 200 ft. (24.38 and 60.96 m) horizontal or 20 ft. (6.10 m) vertical differential (total equivalent length), refer to the Long

Line Guideline—Air Conditioners and Heat Pumps using Puron®Refrigerant.

{Required on all indoor units. Standard on all new Puron refrigerant fan coils and furnace coils.

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:

Available if required by local codes.

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

the heating mode. See Long Line Guideline.

Suggested for all commercial applications.

4. Outdoor Air Temperature Sensor

Designed for use with Carrier 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 Carrier thermostats listed in this

publication.

5. 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.

6. 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.

25HNB6

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

24 --- 30

208/230/1 253 197

52.0 12.7 0.6 16.5 14 14 48 (14.6) 45 (13.7) 25

36 --- 30 82.0 16.7 0.9 21.8 12 12 57 (17.4) 55 (16.8) 35

48 --- 30 96.0 26.9 1.3 34.9 810 89 (27.1) 54 (16.5) 50

60 --- 30 118.0 23.0 1.4 30.2 810 103 (31.4) 63 (19.2) 50

* 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 it 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 ps

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

24 6 8 --- H i g h S t a g e 53.0 55.0 59.0 62.0 59.5 58.0 53.5

6 7 --- L o w S t a g e 52.0 56.0 59.5 60.5 61.0 58.0 49.0

36 7 1 --- H i g h S t a g e 53.0 59.0 62.0 64.0 60.0 58.5 50.5

7 1 --- L o w S t a g e 53.4 60.0 63.0 65.5 61.5 58.0 49.0

48 7 0 --- H i g h S t a g e 54.5 61.5 63.5 64.5 61.0 57.5 52.0

7 0 --- L o w S t a g e 55.5 61.0 64.5 64.0 61.0 57.0 49.5

60 7 2 --- H i g h S t a g e 53.5 62.0 66.0 66.5 61.5 58.0 52.0

7 2 --- L o w S t a g e 54.0 62.0 66.5 67.0 60.5 57.5 51.0

NOTE: Tested in compliance with ARI 270 ---2008 but not listed with AHRI.

CHARGING SUBCOOLING (TXV--TYPE EXPANSION DEVICE)

UNIT SIZE --- VOLTAGE, SERIES REQUIRED SUBCOOLING _F(_C)

24 --- 30 9.0 (5.0)

36 --- 30 12.0 (6.7)

48 --- 30 12.0 (6.7)

60 --- 30 11.0 (6.1)

25HNB6

DIMENSIONS -- ENGLISH

25HNB6

DIMENSIONS -- SI

25HNB6

25HNB6 BALANCE POINT WORKSHEET -- HIGH STAGE

-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)

BUILDING HEAT LOSS, UNIT INTEGRATED

HEATING CAPACITY, MBTUH

OUTDOOR TEMPERATURE, ºF( ºC)

25HNB660

FV4CNB006

BASED ON INDOOR ENT. AIR AT

70ºF 21.1ºC AND AT RATED CFM

25HNB648

FV4CNB005

25HNB636

FV4CNB006

25HNB624

FV4CNF002

25HNB6

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