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RT-SVX50J-EN

37

Table 16.

Belt tension measurement and deflection ranges (in/lb)

Belts Cross

Section

Small P.D Range

(in)

Deflection Force (lb)

Super Gripbelts (in)

Gripnotch (in)

Steel Cable Gripbelts

(in)

Min.

Max.

Min.

Max

Min.

Max.

A

3.0–3.6

3.00

4.50

3.87

5.50

3.25

4.00

3.8–4.8

3.50

5.00

4.50

6.25

3.75

4.75

5.0–7.0

4.00

5.50

5.00

6.87

4.25

5.25

B

3.4–4.2

4.00

5.50

5.75

8.00

4.50

5.50

4.4–5.6

5.12

7.12

6.50

9.12

5.75

7.25

5.8–8.8

6.37

8.75

7.37

10.12

7.00

8.75

Table 17.

Belt tension measurement and deflection ranges (mm/kg)

Belts Cross

Section

Small P.D Range

(mm)

Deflection Force (kg)

Super Gripbelts (mm)

Gripnotch (mm)

Steel Cable Gripbelts

(mm)

Min.

Max.

Min.

Max.

Min.

Max

A

13.3–16.0

13.3

20.0

17.2

24.5

14.5

17.8

16.9–21.4

15.6

22.2

20.0

27.8

16.7

21.1

22.0–31.1

17.8

24.5

22.2

30.6

18.9

23.4

B

15.1–18.7

17.8

24.5

25.6

35.6

20.0

24.5

19.6–24.9

22.8

31.7

28.9

40.6

25.6

32.3

25.8–39.1

28.4

38.9

32.8

45.0

31.1

38.9

Monthly Maintenance

Before completing the following checks, turn the unit
OFF and lock the main power disconnect switch open.

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Filters

Inspect the return air filters. Clean or replace them if
necessary. Refer to the unit Service Facts for filter
information.

Condensate Overflow Switch

During maintenance, the switch float (black ring) must
be checked to ensure free movement up and down.

Cooling Season

Check the unit’s drain pans and condensate piping
to ensure that there are no blockages.

Inspect the evaporator and condenser coils for dirt,
bent fins, etc. If the coils appear dirty, clean them
according to the instructions described in “Coil
Cleaning” later in this section.

Manually rotate the condenser fans to ensure free
movement and check motor bearings for wear.
Verify that all of the fan mounting hardware is tight.

Inspect the F/A-R/A damper hinges and pins to
ensure that all moving parts are securely mounted.
Keep the blades clean as necessary.

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Содержание Foundation EBC180

Страница 1: ...Improperly installed adjusted or altered equipment by an unqualified person could result in death or serious injury When working on the equipment observe all precautions in the literature and on the t...

Страница 2: ...r p pr ro op pe er r P PP PE E f fo or r t th he e j jo ob b b be ei in ng g u un nd de er rt ta ak ke en n c co ou ul ld d r re es su ul lt t i in n d de ea at th h o or r s se er ri io ou us s i in...

Страница 3: ...ma ay y a af ff fe ec ct t t th he e w wa at te er r t ti ig gh ht t i in nt te eg gr ri it ty y o of f t th he e u un ni it t a an nd d l le ea ad d t to o w wa at te er r l le ea ak ks s i in nt to...

Страница 4: ...5 Verifying Proper Air Flow Units with Belt Drive Indoor Fan 25 Electromechanical Controls Test Procedure 25 Start Up 26 Electromechanical Controls Sequence Of Operation 26 Cooling without an Economiz...

Страница 5: ...tch 37 Cooling Season 37 Heating Season 38 Coil Cleaning 38 Troubleshooting 41 Standard Troubleshooting 41 Failures 41 Low Leak Economizer LLE Troubleshooting 41 Resetting Cooling and Heating Lockouts...

Страница 6: ...omizer Dry Bulb w o Barometric Relief L Downflow Low Leak Economizer Reference Enthalpy w o Barometric Relief N Downflow Low Leak Economizer Comparative Enthalpy w o Barometric Relief Digit 15 Supply...

Страница 7: ...tr ra at ti io on ns s r re eq qu ui ir ri in ng g a ad dd di it ti io on na al l r re es sp pi ir ra at to or ry y p pr ro ot te ec ct ti io on n U Us se e t th he e a ap pp pr ro op pr ri ia at te...

Страница 8: ...relay energizes and opens the 24 Vac control circuit disabling the unit A delay timer prevents the unit from starting for 3 minutes Phase Monitor The Phase Monitor is a three phase line monitor module...

Страница 9: ...he CO2 SPAN to 1600 ppm in the ADVANCED SETUP menu Occupancy Sensor A customer supplied occupancy sensor can also be added to provide damper control based on occupied unoccupied conditions Low Leak Ec...

Страница 10: ...zer airflows or recirculation of hot condenser air Figure 1 Typical installation clearance for single and multiple unit applications NOTES 1 FOR HORIZONTAL DISCHARGE UNIT THIS MEASUREMENT IS REDUCED T...

Страница 11: ...ONDENSATE DRAIN CONNECTION Figure 3 Cooling with optional electrical heat front and side views electric electric NOTES 1 THROUGH THE BASE ELECTRICAL IS NOT STANDARD ON ALL UNITS 2 VERIFY WEIGHT CONNEC...

Страница 12: ...DIMENSION WITH INSTALLER DOCUMENTS BEFORE INSTALLATION THROUGH THE BASE ELECTRICAL RETURN SUPPLY 64 9 16 71 15 16 14 15 16 7 7 16 7 3 8 123 1 8 36 1 16 6 15 16 6 13 16 68 9 16 Figure 5 Cooling with op...

Страница 13: ...51 MM 69 1 2 1765 MM Figure 7 Cooling with optional electrical heat downflow duct connections field fabricated 1 25 4 MM CURB FLANGE LONG SIDES 14 1 16 357 MM 7 7 16 189 MM 73 7 16 1865 MM 1 25 MM 19...

Страница 14: ...nal electric heat barometric relief and economizer NOTES 1 VERIFY WEIGHT CONNECTION AND ALL DIMENSION WITH INSTALLER DOCUMENTS BEFORE INSTALLATION 2 BAROMETRIC RELIEF IS FOR USE WITH A DOWNFLOW ECONOM...

Страница 15: ...manual damper NOTE VERIFY WEIGHT CONNECTION AND ALL DIMENSION WITH INSTALLER DOCUMENTS BEFORE INSTALLATION BACK VIEW OF UNIT LEFT VIEW OF UNIT FAN MANUAL DAMPER HOOD 123 1 8 18 1 4 26 7 8 24 7 8 12 1...

Страница 16: ...a as s n ne ec ce es ss sa ar ry y f fo or r e ev ve en n u un ni it t l li if ft t W WA AR RN NI IN NG G I Im mp pr ro op pe er r U Un ni it t L Li if ft t F Fa ai il lu ur re e t to o p pr ro op pe...

Страница 17: ...RT SVX50J EN 17 Figure 12 Rigging and center of gravity data CENTER OF GRAVITY LENGTH CENTER OF GRAVITY WIDTH W We ei ig gh ht ts s...

Страница 18: ...tion the unit and the curb must be level If the unit is installed at ground level elevate it above the snow line Provide concrete footings at each support location with a full perimeter support struct...

Страница 19: ...ermostat with or without switching subbase Connect properly sized control wiring to the proper termination points between the zone thermostat and the unit control panel Condensate Drain Configuration...

Страница 20: ...ce must be protected from over current and short circuit conditions in accordance with NEC requirements Protection devices must be sized according to the electrical data on the nameplate If the unit i...

Страница 21: ...t does not exceed three 3 ohms conductor for the length of the run N No ot te e Resistance in excess of 3 ohms per conductor could cause component failure due to insufficient AC voltage supply 3 Be su...

Страница 22: ...ct ts s b be ef fo or re e s se er rv vi ic ci in ng g F Fo ol ll lo ow w p pr ro op pe er r l lo oc ck ko ou ut t t ta ag go ou ut t p pr ro oc ce ed du ur re es s t to o e en ns su ur re e t th he...

Страница 23: ...ings need lubricating refer to the maintenance section of this manual for instructions Verify that a condensate trap is installed and the piping is properly sized and pitched Verify that the correct s...

Страница 24: ...of the factory installed disconnect switch Connect the power conductors to the lugs provided Connect the ground wire to the unit ground lug N No ot te e Wire size for the length of run should be dete...

Страница 25: ...ol ECA if applicable Electromechanical Controls Test Procedure See unit schematic for correct wire numbers F Fa an n T Te es st t a an nd d M Mi in ni im mu um m V Ve en nt ti il la at ti io on n Conn...

Страница 26: ...tside air dry bulb temperature Table 3 p 26 lists the selectable dry bulb values by potentiometer setting Table 3 Potentiometer settings Potentiometer Setting Dry Bulb Enthalpy A 27 Btu lb 63 kJ kg 73...

Страница 27: ...the trip point the COF relay energizes and opens the 24 Vac control circuit which disables the unit Once the 24 Vac control circuit is opened a delay timer will prevent unit start up for three minutes...

Страница 28: ...tor is a 3 phase line monitor module that protects against phase loss phase reversal and phase unbalance It is intended to protect compressors from reverse rotation It has an operating input voltage r...

Страница 29: ...to Full Open On On High 24 v On 0 v Off a VENTMIN to Full Open Closed to Full Open Above CO2 set No Off Off High 0 v Off 0 v Off VENTMIN to VENTMAX Closed On Off High 24 v On 0 v Off VENTMIN to VENTMA...

Страница 30: ...LY in Advanced setup menu can turn on 2nd stage of mechanical cooling Y2 O after the delay if the call for Y1 I and Y2 I have not been satisfied Table 9 Dry bulb operation no DCV CO2 sensor 2 speed fa...

Страница 31: ...satisfied b With 2SP FAN DELAY Advanced Setup Menu when in the economizing mode there is a delay for the high speed fan to try to satisfy the call for second stage cooling by turning on the fan to hi...

Страница 32: ...alpy boundaries parameters ES1 through ES5 Enth Curve Temp dry Bulb F Temp dewpoint F Enthalpy btu lb da Point P1 Point P2 Temp F Humid RH Temp F Humid RH ES1 80 0 60 0 28 0 80 0 36 8 66 3 80 1 ES2 75...

Страница 33: ...r temperature discharge limit opens the compressor on the affected circuit is turned off Coil Frost Protection The Frostat control monitors the evaporator coil temperature to prevent the evaporator fr...

Страница 34: ...pressure should rise If a scroll compressor is rotating backwards it will not pump and a loud rattling sound can be observed b If the electrical phasing is correct before condemning a compressor inter...

Страница 35: ...nel if applicable for proper unoccupied operation Refer to the programming instructions for the specific panel Verify that the Remote panel System selection switch Fan selection switch and Zone Temper...

Страница 36: ...w belts do not stretch them over the sheaves Loosen the belts using the belt tension adjustment bolts on the motor mounting base Once the new belts are installed using a Browning or Gates tension gaug...

Страница 37: ...er ri io ou us s i in nj ju ur ry y D Di is sc co on nn ne ec ct t a al ll l e el le ec ct tr ri ic c p po ow we er r i in nc cl lu ud di in ng g r re em mo ot te e d di is sc co on nn ne ec ct ts s...

Страница 38: ...ch circuit superheat and subcooling each circuit Record this data on an operator s maintenance log like the one shown in Sample maintenance log table in Final Process Section If the operating pressure...

Страница 39: ...thin walls of the MCHE coils the traditional field maintenance method recommended for Round Tube Plate Fin RTPF coils does not apply to microchannel coils Moreover chemical cleaners are a risk factor...

Страница 40: ...id Press Psig kPa Super heat F C Sub cool F C Compr Oil Level Suct Press Psig kPa Disch Press Psig kPa Liquid Press Psig kPa Super heat F C Sub cool F C ok low ok low ok low ok low ok low ok low ok lo...

Страница 41: ...ic ca al l c co om mp po on ne en nt ts s p pe er rf fo or rm m t th he es se e t ta as sk ks s Standard Troubleshooting Failures Cooling Failure 1 Cooling and heating set points slide pot on the the...

Страница 42: ...the Mode selection switch at the thermostat to the Off position After approximately 30 seconds turn the Mode selection switch to the desired mode i e Heat Cool or Auto Method 2 To reset the system at...

Страница 43: ...agrams Type of Airflow Schematic Type Voltage Diagram Number Description Constant Volume Power 208 575 1213 3649 Schematic PWR EM CO CV Control 208 575 1213 2968 EBC180 300 60Hz Cooling only Electric...

Страница 44: ...r s obligations and liabilities under this warranty are limited to furnishing F O B factory or warehouse at the warrantor designated shipping point freight allowed to Buyer s city or port of export fo...

Страница 45: ...RT SVX50J EN 45 N No ot te es s...

Страница 46: ...46 RT SVX50J EN N No ot te es s...

Страница 47: ...RT SVX50J EN 47 N No ot te es s...

Страница 48: ...please visit trane com or americanstandardair com Trane and American Standard have a policy of continuous product and product data improvement and reserve the right to change design and specifications...

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