Trane 4TWX7 Series Скачать руководство пользователя страница 24

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Trane - by Trane Technologies (NYSE: TT), a global climate innovator - creates comfortable, energy efficient indoor

environments for commercial and residential applications. For more information, please visit trane.com or

tranetechnologies.com.

The AHRI Certified mark indicates Trane U.S. Inc. participation in the AHRI Certification program. For verification of individual certified products,

go to ahridirectory.org.

Trane has a policy of continuous data improvement and it reserves the right to change design and specifications without notice. We are committed

to using environmentally conscious print practices.

18-BC109D1-1A-EN 10 Jun 2022
Supersedes (New)

SYSTEM FAULTS

REFRIGERANT CIRCUIT

Head Pressure Too High

Head Pressure Too Low

Suction Pressure Too High

Suction Pressure Too Low

Liquid Refrig. Floodback (TXV/EEV)

Liquid Refrig. Floodback

(Cap. Tube)

I.D. Coil Frosting

Compressor Runs

Inadequate or No Cooling/Htg

ELECTRICAL

Compressor & O.D. Fan

Won’t Start
Compressor Will Not Start

But O.D. Fan Runs

O.D. Fan Won’t Start

Compressor Hums But Won’t Start

Compressor Cycles on IOL

I.D. Blower Won’t Start

DEFROST

Unit Won’t Initiate Defrost

Defrost Terminates on Time

Unit Icing Up

R S

PLY

HIG

H V

OLT

E W

IRIN

N C

APA

CIT

STA

PAC

ITO

STA

LAY

NTA

CTO

R C

TAC

W V

OLT

E W

IRIN

L T

STA

NTA

CTO

R C

OIL

W V

OLT

E F

STU

INE

FFIC

IEN

T C

F. U

F. O

IVE

AP.

LES

S. O

.D.

AIR

FLO

O.D

. A

CIR

LAT

ION

V/E

K O

EAT

S. I

.D.

AIR

FLO

F. C

IR.

STR

ICT

ION

V L

KIN

V C

OIL

EFE

IVE

K V

ALV

E L

KIN

T R

ELA

Y D

EF.

T C

C
H
C
H
C
H
C
H
C
H
C
H
C
H
C
H

C
H
C
H
C
H
C
H
C
H
C
H

C
H
C
H
C
H

P
P

P
P
P
P
P
P

P
P
P
P

S
S

S
S
S
S

S
S

S
S
S
S

S
S
S
S
S
S
S
S

S
S

P
P

S
S

P
P

S
S

P
P

P
P
P
P

P
P
P
P
P
P
P
P

S
S
S
S

S
S

P
P

S
S

S
S
S

S
S

S
S
S

S
S

P
P

S
S
S
S
S
S

S
S

P
P

S
S
S
S

S
S

S
S
P
P

S
S

P
P
P

P
P

S
S

P P

C - Cooling H - Heating P - Primary Causes S - Secondary Causes

- 3 Phase Only

15.2 Troubleshooting

Содержание 4TWX7 Series

Страница 1: ...approved matched indoor and outdoor systems All of the manufacture s split systems are AHRI rated only with TXV EEV indoor systems Some of the benefits of installing approved matched indoor and out do...

Страница 2: ...replacement For specific handling concerns with R 410A and POE oil reference Retrofit Bulletins SS APG006 EN and APP APG011 EN or APP APG012 EN Extreme caution should be exercised when opening the Liq...

Страница 3: ...h of refriger ant lines from outdoor to indoor unit should NOT exceed 150 feet including lift 2 The maximum vertical change should not exceed 50 feet 3 Standard and alternate line sizes and service va...

Страница 4: ...oof top depending on local weather This additional height will allow drainage of snow and ice melted during defrost cycle prior to its refreezing Ensure that drain holes in unit base pan are not obstr...

Страница 5: ...pad such as a concrete slab consider the following The pad should be at least 1 larger than the unit on all sides The pad must be separate from any structure The pad must be level The pad should be h...

Страница 6: ...7048E 7 8 3 8 7 8 3 8 150 50 4TWX7060E 1 1 8 3 8 7 8 3 8 80 25 ALTERNATE LINE SIZES Line Sizes Service Valve Connection Sizes Max Line Lift Lengths Vapor Line Liquid Line Vapor Line Connection Liquid...

Страница 7: ...mine required line length and lift You will need this later in STEP 2 of Section 14 Total Line Length __________ Ft Total Vertical Change lift __________ Ft The outdoor condensing units are factory ch...

Страница 8: ...refrigerant lines For Example When the refrigerant lines have to be fastened to floor joists or other framing in a structure use isolation type hangers Isolation hangers should also be used when refr...

Страница 9: ...e or other appropriate method every 8 ft 8 Feet Maximum Isolation Through Wall DO NOT hang line sets from ductwork Sealant Insulation Vapor Line Wall Ductwork Isolator Line Set Section 7 Refrigerant L...

Страница 10: ...orrect direction of refrigeration flow away from outdoor unit and toward evapo rator coil as illustrated Braze the filter drier to the Liquid Line Continue the dry nitrogen purge Do not remove the wet...

Страница 11: ...P 2 Check for leaks by using a soapy solu tion or bubbles at each brazed location Remove nitrogren pressure and repair any leaks before continuing Section 8 Refrigerant Line Leak Check 8 1 Check For L...

Страница 12: ...ete blank off the vacuum pump and micron gauge and close the valves on the manifold gauge set 1 MIN Section 10 Service Valves 10 1 Open the Gas Service Valve 0350 Microns ON OFF CAP 1 4 TURN ONLY COUN...

Страница 13: ...hes the rolled edge No torque is required Failure to follow this warning will result in abrupt release of system charge and may result in personal injury and or property damage Section 11 Electrical L...

Страница 14: ...er TAM7 DIP switches must be configured for HP 2 Stage 1 Compressor Note Refer to Indoor Unit Literature for proper configuration BK WH BLK BK WH BLK BK WH BLK BK WH BLK 11 3 Defrost Control Defrost c...

Страница 15: ...t may be nec essary to work with live electrical components Failure to follow all electrical safety precau tions when exposed to live electrical compo nents could result in death or serious injury Ins...

Страница 16: ...s STEP 5 Set system thermostat to ON OFF DONE CANCEL ON OFF STEP 4 Wait one 1 hour before starting the unit if compressor crankcase heater acces sory is used and the Outdoor Ambient is below 70 F 60 M...

Страница 17: ...ient tempera ture is above 55 F For best results the indoor temperature should be kept between 70 F to 80 F STEP 1 Use the refrigerant line total length and lift measurements from Section 5 3 Total Li...

Страница 18: ...NG CHART CORRECTIONS TABLE FOR LINE LENGTH AND RISE Add 2 REFRIGERANT LINE LIFT FT 4 Ton Heat Pump 50 1 40 1 30 25 Use Design Subcooling 15 10 0 20 30 40 50 60 70 80 90 100 110 120 130 140 150 REFRIGE...

Страница 19: ...essure should be ap proximately 327 PSIG This is the shown as the intersection of the Final Subcooling column and the Liquid Temperature row Table 14 2 8 9 10 11 12 13 14 179 182 185 188 191 195 198 1...

Страница 20: ...OR TEMPERATURE Degree F SUCTION PRESSURE PSIG OUTDOOR TEMPERATURE Degree F COOLING PERFORMANCE CAN BE CHECKED WHEN THE OUTDOOR TEMP IS ABOVE 65 DEG F TO CHECK COOLING PERFORMANCE SELECT THE PROPER IND...

Страница 21: ...eating Only Measured Suction Line Temp __________ F Liquid Gage Pressure __________ PSIG Suction Gage Pressure __________ PSIG Calculating Charge Using the Weigh In Method 1 Measure in feet the distan...

Страница 22: ...btained with the namplate charge plus additional charge previously added STEP 5 Return to site for adjustment Important Return in the spring or summer to accurately charge the system in the cooling mo...

Страница 23: ...gainst the following list Final phases of this installation are the unit Operational and Checkout Procedures To obtain proper performance all units must be operated and charge adjustments made Importa...

Страница 24: ...Up W H A T T O C H E C K M O D E P O W E R S U P P L Y H I G H V O L T A G E W I R I N G C O M P R E S S O R I O L R U N C A P A C I T O R S T A R T C A P A C I T O R S T A R T R E L A Y C O N T A C T...

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