Carrier INFINITY 50XT-A Manuel d'utilisateur télécharger pdf

T --- A

Infinity

15 SEER Sing le---Packag ed Heat Pump System

with Puron

(R---410A) R efrig er ant

Single Phase

2 --- 5 N o m i n a l To n s ( S i z e s 2 4 --- 6 0 )

Product Data

A09032

Fig. 1 -- Unit 50XT-- A

Single--Packaged Products with energy--saving features and

Puron

refrigerant.

S Up to 15.5 SEER

S Up to 8.0 HSPF

S Up to 12 EER at 95°F(35°C) OD

S Low Sound Levels

S Full featured ECM Motor

S Factory--Installed TXV

S Two--stage cooling and heat pump operation

FEATURES/BENEFITS

One--piece Heat Pump unit with optional electric heater, low

installation cost, dependable performance and easy maintenance.

Efficient operation

High--efficiency design with SEERs (Seasonal Ener gy Efficiency

Ratio) of up to 15.5, EER up to 12.0, HSPF of up to 8.0.

Puron

environmentally--sound r efrigerant is Carrier’s unique

refrigerant designed to help protect the environment. Puron is an

HFC refrigerant which does not contain chlorine that can harm the

ozone layer. Puron refrigerant is in service in millions of systems

proving highly reliable, environmentally sound performance.

Comfort Heat Pump System with IdealHumidityt featuring

Infinity control variable--speed blower motor and two--stage

cooling and heating that provides greater comfort, humidity

control, and energy efficiency.

Innovative Unit Base Design

On the inside a high--tech composite material will not rust and

incorporates a sloped drain pan which improves drainage and helps

inhibit mold, algae and bacterial growth. On the outside metal base

rails provide added stability as well as easier handling and rigging.

Variable--speed blower motors provide better comfort and energy

efficiency. Economical constant airflow which provides improved

indoor air quality and more even temperatures from room to room;

and reduced indoor noise due to lower air velocity. In addition,

you’ll realize improved installation flexibility with 3 different

airflow choices for best overall comfort.

Easy installation

Factory--assembled package is a compact, fully self--contained heat

pump unit that is pre-- wired, pre-- piped, and pre--charged for

minimum installation expense. 50XT--A units are available in a

variety of standard capacity ranges. Units install easily on a rooftop

or at ground level.

Durable, dependable components

Compr essors have two stages of cooling and heating and are

designed for high efficiency. Each compressor is hermetically

sealed against contamination to help promote longer life and

dependable operation. Vibration isolation provides quiet operation.

Compressors have internal high --pressure and overcurrent

protection.

Convertible duct configuration

Unit is designed for use in either downflow or horizontal

applications. Each unit is converted from horizontal to downflow

and includes horizontal duct covers. Downflow operation is

provided in the field to allow vertical ductwork connections. The

basepan seals on the bottom openings to ensure a positive seal in

the vertical airflow mode.

Full featured ECM Motor is standard on all 50XT models.

Direct--drive, PSC (Permanent Split Capacitor) condenser fan

motors are designed to help reduce energy consumption and

provide for cooling operation down to 55°F (12.7°C) outdoor

temperature. Low --ambient cooling is available below 55°F

(12.7°C) when low--ambient cooling is enabled in the User

Interface (UI). Motormaster

II low--ambient kit is not required.

Infinity User Interface is designed to work as a system with

Carrier’s single--packaged product.

Refrigerant system is designed to provide dependability. Liquid

refrigerant filter driers are used to promote clean, unrestricted

operation. Each unit leaves the factory with a full Puron refrigerant

charge. Refrigerant service connections make checking operating

pressures easier .

1 2 3 4 5 6 ... 35 36

Résumé du contenu

Page 1 - Product Data

150XT --- AInfinity®15 SEER Sing le---Packag ed Heat Pump Systemwith Puron®(R---410A) R efrig er antSingle Phase2 --- 5 N o m i n a l To n s ( S i z e

Page 2 - TABLE OF CONTENTS

10PERFORMANCE DATA--STANDARD ECM INDOOR MOTORCooling Extended P erformance Table50XT--A24 High CoolEVAPORATORAIRCONDENSER ENTERING AIR TEMPERATURES _F

Page 3 - AHRI* CAPACITIES

11PERFORMANCE DATA--STANDARD ECM INDOOR MOTORHeating Capacity50XT--A24 HighINDOOR AIROUTDOOR COIL ENTERING AIR TEMPERATURES _F(_C)--10 (--23.3) 0 (--1

Page 4 - PHYSICAL DATA

12PERFORMANCE DATA--STANDARD ECM INDOOR MOTORHeating Capacity50XT--A24 LowINDOOR AIROUTDOOR COIL ENTERING AIR TEMPERATURES _F(_C)--10 (--23.3) 0 (--17

Page 5 - MANUAL OUTSIDE AIR DAMPER

13PERFORMANCE DATA--STANDARD ECM INDOOR MOTORCooling Extended Performance Table50XT--A30 High CoolEVAPORATORAIRCONDENSER ENTERING AIR TEMPERATURES _F(

Page 6 - 50XT--A24--30 UNIT DIMENSIONS

14PERFORMANCE DATA--STANDARD ECM INDOOR MOTORHeating Capacity50XT--A30 HighINDOOR AIROUTDOOR COIL ENTERING AIR TEMPERATURES _F(_C)--10 (--23.3) 0 (--1

Page 7 - 50XT--A36--60 UNIT DIMENSIONS

15PERFORMANCE DATA--STANDARD ECM INDOOR MOTORHeating Capacity50XT--A30 LowINDOOR AIROUTDOOR COIL ENTERING AIR TEMPERATURES _F(_C)--10 (--23.3) 0 (--17

Page 8 - ROOF CURB DIMENSIONS

16PERFORMANCE DATA--STANDARD ECM INDOOR MOTORCooling Extended Performance Table50XT--A36 High CoolEVAPORATORAIRCONDENSER ENTERING AIR TEMPERATURES _F(

Page 9 - SELECTION PROCEDURE

17PERFORMANCE DATA--STANDARD ECM INDOOR MOTORHeating Capacity50XT--A36 HighINDOOR AIROUTDOOR COIL ENTERING AIR TEMPERATURES _F(_C)--10 (--23.3) 0 (--1

Page 10 - 50XT--A24 Low Cool

18PERFORMANCE DATA--STANDARD ECM INDOOR MOTORHeating Capacity50XT--A36 LowINDOOR AIROUTDOOR COIL ENTERING AIR TEMPERATURES _F(_C)--10 (--23.3) 0 (--17

Page 11 - 50XT--A24 High Con ’t

19PERFORMANCE DATA--STANDARD ECM INDOOR MOTORCooling Extended Performance Table.50XT--A42 High CoolEVAPORATORAIRCONDENSER ENTERING AIR TEMPERATURES _F

Page 12 - 50XT--A24 Low Con’t

2Indoor and outdoor coils are computer designed for optimumheat transfer and cooling efficiency. The indoor coil is fabricatedfrom copper tube and alu

Page 13 - 50XT--A30 High Cool

20PERFORMANCE DATA--STANDARD ECM INDOOR MOTORHeating Capacity50XT--A42 HighINDOOR AIROUTDOOR COIL ENTERING AIR TEMPERATURES _F(_C)--10 (--23.3) 0 (--1

Page 14 - 50XT--A30 High Con ’t

21PERFORMANCE DATA--STANDARD ECM INDOOR MOTORHeating Capacity50XT--A42 LowINDOOR AIROUTDOOR COIL ENTERING AIR TEMPERATURES _F(_C)--10 (--23.3) 0 (--17

Page 15 - 50XT--A30 Low Con’t

22PERFORMANCE DATA--STANDARD ECM INDOOR MOTORCooling Extended Performance Table50XT--A48 High CoolEVAPORATORAIRCONDENSER ENTERING AIR TEMPERATURES _F(

Page 16 - 50XT--A36 Low Cool

23PERFORMANCE DATA--STANDARD ECM INDOOR MOTORHeating Capacity50XT--A48 HighINDOOR AIROUTDOOR COIL ENTERING AIR TEMPERATURES _F(_C)--10 (--23.3) 0 (--1

Page 17 - 50XT--A36 High Con ’t

24PERFORMANCE DATA--STANDARD ECM INDOOR MOTORHeating Capacity50XT--A48 LowINDOOR AIROUTDOOR COIL ENTERING AIR TEMPERATURES _F(_C)--10 (--23.3) 0 (--17

Page 18 - 50XT--A36 Low Con’t

25PERFORMANCE DATA--STANDARD ECM INDOOR MOTORCooling Extended Performance Table50XT--A60 High CoolEVAPORATORAIRCONDENSER ENTERING AIR TEMPERATURES _F(

Page 19 - 50XT--A42 Low Cool

26PERFORMANCE DATA--STANDARD ECM INDOOR MOTORHeating Capacity50XT--A60 HighINDOOR AIROUTDOOR COIL ENTERING AIR TEMPERATURES _F(_C)--10 (--23.3) 0 (--1

Page 20 - 50XT--A42 High Con ’t

27PERFORMANCE DATA--STANDARD ECM INDOOR MOTORHeating Capacity50XT--A60 LowINDOOR AIROUTDOOR COIL ENTERING AIR TEMPERATURES _F(_C)--10 (--23.3) 0 (--17

Page 21 - 50XT--A42 Low Con’t

28PERFORMANCE DATA (CONT)LEGENDBF— Bypass Factoredb— Entering Dry--BulbEwb— Entering Wet--BulbkW — Total Unit Power Inputldb— Leaving Dry--Bulblwb— Le

Page 22 - 50XT--A48 Low Cool

29PERFORMANCE DATA (CONT)Wet Coil/Dry Coil Air Delivery -- Low Stage208/230 VOLTUNITSIZESYSTEM SETTINGEXTERNAL STATIC PRESSURE (in. wc)0.1 0.2 0.3 0.4

Page 23 - 50XT--A48 High Con ’t

3MODEL NUMBER NOMENCLATURE50XT--- ------ --- ---Typ e o f Uni t50XT --- Single PackagedHeat PumpSystemNominal Cooling Capacity24 --- 2.0 Tons30 --- 2.

Page 24 - 50XT--A48 Low Con’t

30TYPICAL PIPING AND WIRINGROOFRETURN-AIRFLEXIBLE DUCTCEILINGCONCENTRIC DIFFUSER BOX(FIELD-SUPPLIED)SUPPLY-AIRFLEXIBLE DUCTROOF-MOUNTINGCURBA09233INDO

Page 25 - 50XT--A60 Low Cool

31APPLICATION DATACondensate trap — A 2 -- in. (51 mm) condensate trap must be fieldsupplied.Ductwork — Securedownflow dischargeductwork to roof curb.

Page 26 - 50XT--A60 High Con ’t

32ELECTRICAL DATAUNIT SIZEV--PH--HZVOLTAGERANGECOMPRESSOR OFMFLAIFMFLAELECTRIC HEATSINGLE POINT POWERSUPPLYNOMINALFLA MCA MOCPMIN MAX RLA LRA kW*24 20

Page 27 - 50XT--A60 Low Con’t

33TYPICAL WIRING SCHEMATIC — 230--1--60A0931050XT --A

Page 28 - PERFORMANCE DATA (CONT)

34CONTROLSSequence of OperationThe 50XT packaged heat pump is designed for installation with acommunicatingUI. Thisunit willnot respond to commandspro

Page 29

35GUIDE SPECIFICATIONSSINGLE--PACKAGED HEAT PUMP SYSTEMCONSTANT VOLUME APPLICATIONHVAC GUIDE SPECIFICATIONSSIZE RANGE: 2 TO 5 TONS, NOMINAL (COOLING)M

Page 30 - TYPICAL PIPING AND WIRING

36GUIDE SPECIFICATIONS (CONT)M. Special Features:1. Coil OptionsBase unit with tin plated indoor coil hairpins available as afactory installed option.

Page 31 - 1000BTUH

4PHYSICAL DATAUNIT SIZE 24 30 36 42 48 60NOMINAL CAPACITY ton 2 2--1/2 3 3--1/2 4 5SHIPPING WEIGHT (lb)(kg)435197465211501227513233529240572259COMPRES

Page 32 - ELECTRICAL DATA

5OPTIONS AND ACCESSORIESITEM DESCRIPTIONFACTORYINSTALLEDOPTIONFIELDINSTALLEDACCESSORYCoil Options Base unit with tin plated indoor coil hairpins XCorp

Page 33 - 50XT --A

650XT--A24--30 UNIT DIMENSIONSA0912850XT--A

Page 34 - CONTROLS

750XT--A36--60 UNIT DIMENSIONSA0912950XT--A

Page 35 - GUIDE SPECIFICATIONS

8ROOF CURB DIMENSIONSRETURN AIR SMALLBASE UNITSUPPLYAIRLARGEBASE UNITUNIT PLACEMENT ON COMMON CURBCBAFDELARGE CURBCBAFDEDashed lines show cross suppor

Page 36 - GUIDE SPECIFICATIONS (CONT)

9SELECTION PROCEDUREDetermine cooling and heating requirements at designconditionsGiven:REQUIRED COOLING CAPACITY (TC) 34,500 BTUH...SENSIBLE HEAT