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RT-SVX069A-EN

Wiring Diagrams

otte

e:: Contact technical support for wiring diagrams.

Table 16.

Wiring diagrams

Type of Airflow

Schematic Type

Voltage

Diagram Number

Description

Constant Volume

Power and Control

208–230

16027700002075

GBC090-150, 60Hz, 2-Stage Gas Heat

Multi-Speed Fans

Power and Control

208–230

16027700002075

GBC090-150, 60Hz, 2-Stage Gas Heat w/VFD

Содержание Foundation GBC Series

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 tags stickers and labels that are attached to the equipment September 2020 R RT T S SV VX X0 06 69 9A A E EN N Installation Operation and Maintenance Packaged Rooftop Air Conditioners Foundation Coolin...

Страница 2: ...r 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 nj ju ur ry y T Te ec ch hn ni ic ci ia an ns s i in n o or rd de er r t to o p pr ro ot te ec ct t t th he em ms se el lv ve es s f fr ro om m p po ot te en nt ti ia al l e el le ec ct tr ri ic ca ...

Страница 3: ...be retained by the unit s maintenance personnel I Im mp po or rt ta an nt t Do not release refrigerant to the atmosphere If adding or removing refrigerant is required the service technician must comply with all federal state and local laws This booklet describes the proper installation startup operation and maintenance procedures for air cooled systems By carefully reviewing the information within...

Страница 4: ...an 24 Electromechanical Controls Test Procedure 24 Start Up 25 Electromechanical Controls Sequence Of Operation 25 Cooling without an Economizer 25 Evaporator Fan Operation for Gas Units Standard Economizer 25 Evaporator Fan Operation for Cooling Only Units Standard Economizer 25 Economizer Set Up Standard Economizer 25 Cooling with an Economizer Standard Economizer 25 Heating Operation Units with...

Страница 5: ...SVX069A EN 5 Warranty 38 For Commercial Unitary Equipment Rated 25 Tons and Under and Related Accessories 38 Basic Warranty 38 Exclusions and Limitations 38 T Ta ab bl le e o of f C Co on nt te en nt ts s ...

Страница 6: ...w Y Gas Heat Stainless Steel HX Medium Z Gas Heat Stainless Steel HX High Digit 11 Minor Design Sequence A Rev A Digit 12 13 Service Sequence 00 None Digit 14 Fresh Air Selection 0 No Fresh Air Options Digit 15 Supply Fan Drive Type Motor 0 Standard Motor 7 Multi Speed Standard Motor 9 Multi Speed Oversized Motor Digit 16 Unit M Medium Foundation Digit 17 Condenser Coil Protection 0 Standard Coil ...

Страница 7: ...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 e N NI IO OS SH H a ap pp pr ro ov ve ed d r re es sp pi ir ra at to or r F Fi ir rs st t A Ai id d M Me ea as su ur re es s E Ey ye e C Co on nt ta ac ct t F Fl lu us sh h e ey ye es s w wi it th h w wa at te er r t to o r re em mo ov ve...

Страница 8: ...tat signals are wired in series and connected to the safety input of the LSD The compressor contactor coil is connected to the CC terminal of the LSD If the high pressure control switch or the discharge line thermostat is open the 24 Vac signal to the SI input of the LSD is interrupted and the compressor contactor coil supply is disabled by the LSD It has an automatic lockout The high pressure con...

Страница 9: ...SINGLE UNIT END TO END NOTE 2 3 SIDE BY SIDE NOTE 2 5 0 WITH ECONOMIZER 3 0 WITHOUT ECONOMIZER NOTES 1 FOR HORIZONTAL DISCHARGE UNIT THIS MEASURE IS REDUCED TO 1 6 TO MINIMIZE DUCT EXTENSIONS 2 WHEN EQUIPPED WITH ECONOMIZER OR BAROMETRIC RELIEF DAMPER CLERANCE DISTANCE IS TO BE MEASURE FROM PROTRUDING HOOD INSTEAD OF BASE 3 CLEARANCE IS THE SAME IF ANY UNIT IS ROTATED 180 3 ADDITIONAL CLEARANCE RE...

Страница 10: ... views C D E F 2 9 16 Ø1 15 16 Ø7 8 Ø1 3 8 Ø1 3 8 Ø1 15 16 2 3 8 2 3 8 Ø1 15 16 NOTES 1 THROUGH THE BASE GAS AND ELECTRICAL IS NOT STANDARD ON ALL UNITS 2 VERIFY WEIGHT CONNECTION AND ALL DIMENSION WITH INSTALLER DOCUMENTS BEFORE INSTALLATION 37 11 16 29 3 8 A B 6 5 16 88 1 4 GAC UNITS ONLY D Di im me en ns si io on na al l D Da at ta a ...

Страница 11: ...UGH THE BASE GAS AND ELECTRICAL IS NOT STANDARD ON ALL UNITS 3 3 2 VERIFY WEIGHT CONNECTION AND ALL DIMENSION WITH INSTALLER DOCUMENTS BEFORE INSTALLATION Figure 5 Foundation units back view horizontal configuration 27 3 16 52 7 16 21 7 16 12 3 8 4 1 2 RETURN SUPPLY 13 7 8 A 4 15 16 5 3 4 UNIT DIMENSION A 36 7 16 34 13 16 GBC090 GBC102 GBC120 GBC150 D Di im me en ns si io on na al l D Da at ta a ...

Страница 12: ...599 54 563 84 800 45 131 84 804 32 256 3 000 3 000 19 401 15 520 15 799 3 548 1 75 14 000 37 921 Figure 7 Downflow unit clearance CLEARANCE CLEARANCE CLEARANCE CLEARANCE UNIT OUTLINE 54 599 39 669 68 48 60 48 D Di im me en ns si io on na al l D Da at ta a ...

Страница 13: ...t t b be e o of f t th he e s sa am me e l le en ng gt th h A Ad dj ju us st t 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 er rl ly y l li if ft t u un ni it t i in n a a L LE EV VE EL L p po os si it ti io on n c co ou ul ld d r re es su ul lt...

Страница 14: ...14 RT SVX069A EN Figure 9 Rigging and center of gravity data CENTER OF GRAVITY LENGTH CENTER OF GRAVITY WIDTH U Un ni it t W We ei ig gh ht ts s ...

Страница 15: ...upport Refer to Table 1 p 13 for the unit s operating and point loading weights when constructing a footing foundation If anchoring is required anchor the unit to the slab using hold down bolts or isolators Isolators should be installed to minimize the transmission of vibrations into the building For rooftop applications if anchoring is required anchor the unit to the roof with hold down bolts or ...

Страница 16: ...u 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 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 e p po ow we er r c ...

Страница 17: ... b be e p pe er rf fo or rm me ed d b by y q qu ua al li if fi ie ed d p pe er rs so on nn ne el l I Im mp pr ro op pe er rl ly y i in ns st ta al ll le ed d a an nd d g gr ro ou un nd de ed d f fi ie el ld d w wi ir ri in ng g p po os se es s F FI IR RE E a an nd d E EL LE EC CT TR RO OC CU UT TI IO ON N h ha az za ar rd ds s T To o a av vo oi id d t th he es se e h ha az za ar rd ds s y yo ou u ...

Страница 18: ...tage wiring in the same conduit with the high voltage power wiring Table 2 Electromechanical thermostat 24V AC conductors with electromechanical unit Distance from Unit to Control Recommended Wire Size 0 30 feet 22 gauge 0 9 1 m 0 33 m2 31 50 feet 20 gauge 9 5 15 2 m 0 50 m2 51 75 feet 18 gauge 15 5 22 9 m 0 75 m2 76 125 feet 16 gauge 23 1 38 1 m 1 3 m2 126 200 feet 14 gauge 38 4 60 9 m 2 0 m2 Fig...

Страница 19: ...to 8 0 Natural LP 7 5 to 9 0 Minimum Supply Air Temperature Across Heat Exchanger 40 F a Staged gas heat units have a positive pressure gas valve Never adjust the staged gas pressure valve to a negative pressure b A voltage reading across pens V and V is equatable to the flame sensing current One volt equals one micro amp Table 4 Piping Length of Pipe ft Iron Pipe Size IPS Inches 1 2 Pipe 3 4 Pipe...

Страница 20: ...mbalance AV Average Voltage V1 V2 V3 Line Voltage Readings VD Line Voltage reading that deviates the farthest from the average voltage Example If the voltage readings of the supply power measured 221 230 and 227 the average volts would be VD reading farthest from average 221 The percentage of Imbalance equals The 2 2 percent imbalance in this example exceeds the maximum allowable imbalance of 2 0 ...

Страница 21: ...nd ready for operation W WA AR RN NI IN NG G H Ha az za ar rd do ou us s V Vo ol lt ta ag ge e F Fa ai il lu ur re e t to o d di is sc co on nn ne ec ct t p po ow we er r b be ef fo or re e s se er rv vi ic ci in ng g 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 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...

Страница 22: ... rg gi iz ze ed d V Ve er ri if fy y w wi it th h a a C CA AT T I II II I o or r I IV V v vo ol lt tm me et te er r r ra at te ed d p pe er r N NF FP PA A 7 70 0E E t th ha at t a al ll l c ca ap pa ac ci it to or rs s h ha av ve e d di is sc ch ha ar rg ge ed d F Fo or r a ad dd di it ti io on na al l i in nf fo or rm ma at ti io on n r re eg ga ar rd di in ng g t th he e s sa af fe e d di is sc ...

Страница 23: ... 23 Table 6 Through the base gas piping dimension Model Dimension GBC090 150 1 3 16 in Figure 16 Through the base gas piping installation 90 Elbow 3 4 Pipe nipple Support bracket I In ns st ta al ll la at ti io on n ...

Страница 24: ...EST set the minimum position setpoint for the economizer to 0 using the setpoint potentiometer located on the Economizer Control ECA if applicable Electromechanical Controls Test Procedure 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 Connect the short circuit between R and G Connect the short circuit between R and Y1 C Co oo ol l 1 1 Connect the short ci...

Страница 25: ...ion Evaporator Fan Operation for Cooling Only Units Standard Economizer When the thermostat fan selection switch is set to the Auto position the thermostat energizes the indoor fan relay coil F to start the indoor fan motor IDM The fan relay F de energizes after the cooling requirement has been satisfied When the heating cycle is terminated the indoor fan relay F coil is de energized with heater c...

Страница 26: ...he inducer blower at the end of the post purge The IGN de energizes the indoor blower at the end of the selected indoor blower delay off Table 8 Ignition module diagnostics Steady light Module is powered up but no active call for heat Blinking at continuous steady rate Active call for heat One blink Loss of communication Two blinks System lockout failure to ignite no spark low no gas pressure etc ...

Страница 27: ...heat mode all units configured with staged electric or gas heat will heat the supply air and space as normal utilizing full speed indoor fan Emergency Stop This input de energizes the 24 Vac output from the phase monitor and can be activated by opening a field supplied device Compressor Start Up 1 Attach a set of service gauges onto the suction and discharge gauge ports for each circuit See Coolin...

Страница 28: ...d practice to start the heater with the main gas supply turned Off Once the ignition system and components have been checked open the main power disconnect switch to reset the unit Final System Set Up After completing all of the pre start and startup procedures outlined in the previous sections i e operating the unit in each of its modes through all available stages of cooling and heating perform ...

Страница 29: ...new 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 gauge or equivalent adjust the belt tension as follows 1 To determine the appropriate belt deflection a Measure the center to center shaft distance in inches between the fan and motor sheaves b Divide t...

Страница 30: ...n d de ea at th h o or r s se 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 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...

Страница 31: ...each 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 pressures indicate a refrigerant shortage measure the system superheat and system subcooling For guidelines refer to Compressor Start Up p 27 I Im mp po or rt ta an nt t Do not release refrigerant to the at...

Страница 32: ...d 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 to MCHE due to the material of the coil The manufacturer does not recommend the use of chemical cleaners to clean microchannel coils Using chemical cleaners could lead to warranty claims being furth...

Страница 33: ...Disch Press Psig kPa Superheat F C Sub cool F C Compr Oil Level Suct Press Psig kPa Disch Press Psig kPa Superheat F C Sub cool F C ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low ok low M Ma ai in nt te en na an nc ce e ...

Страница 34: ...s below to check the Ignition Module IGN To prevent injury or death from electrocution it is the responsibility of the technician to recognize this hazard and use extreme care when performing service procedures with the electrical power energized 1 Verify LED on face of the phase monitor is green If LED is red correct supply power fault 2 Verify that the LED on the IGN is burning continuously If t...

Страница 35: ...le or moisture in system Recover refrigerant evacuate recharge add filter drier Incorrect voltage Determine cause and correct At compressor terminals voltages must be within 10 of rating plate volts when unit is operating Compressor short cycles Incorrect voltage At compressor terminals voltage must be 10 or nameplate marking when unit is operating Defective overload protector Replace check for co...

Страница 36: ...ire nut connections Misaligned spark electrodes Check flame ignition and sense electrode positioning Adjust as necessary No gas at main burners Check gas line for air Purge as necessary NOTE After purging gas line of air wait at least 5 minutes for any gas to dissipate before attempting to light unit Check gas valve Inadequate heating Dirty air filter Clean or replace filter as necessary Gas input...

Страница 37: ...iagrams Table 16 Wiring diagrams Type of Airflow Schematic Type Voltage Diagram Number Description Constant Volume Power and Control 208 230 16027700002075 GBC090 150 60Hz 2 Stage Gas Heat Multi Speed Fans Power and Control 208 230 16027700002075 GBC090 150 60Hz 2 Stage Gas Heat w VFD ...

Страница 38: ...or 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 for shipments outside the conterminous United States a replacement product or at the option of the warrantor parts for the repair of the product not conforming to this warranty and which have been retu...

Страница 39: ...RT SVX069A EN 39 N No ot te es s ...

Страница 40: ...nformation 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 without notice We are committed to using environmentally conscious print practices RT SVX069A EN 24 Sep 2020 Supersedes New 2020 ...

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