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8

RT-SVX51H-EN

Unit Description

Before shipment, each unit is leak tested, dehydrated,
charged with refrigerant and compressor oil, and run
tested for proper control operation.

Direct-drive, vertical discharge condenser fans are
provided with built-in thermal overload protection. The
stages of capacity control for these units are achieved
by starting the Economizer Control Actuator (ECA).

Economizer Control Actuator
Electromechanical Control

The ECA monitors the mixed air temperature, return air
temperature, minimum position setpoint (local or
remote), power exhaust setpoint, CO

2

setpoint, CO

2

,

and ambient dry bulb/ enthalpy sensor or comparative
humidity (return air humidity against ambient
humidity) sensors, if selected, to control dampers to an
accuracy of ±5 percent of stroke. The actuator is spring
returned to the closed position any time that power is
lost to the unit. It is capable of delivering up to 25 in

lb

of torque and is powered by 24 Vac.

JADE Economizer Control - Low Leak
Economizer (LLE) Only

The JADE controller is a standalone economizer
controller that provides outdoor air dry-bulb
economizer control standard. With optional Sylk Bus
sensors, the controller can provide comparative or
reference enthalpy control. Dampers are controlled to
an accuracy of ±3.2 percent of stroke. The actuator is
spring returned to the closed position any time that
power is lost to the actuator. It is capable of delivering
up to 88 in

lb of torque and is powered by 24 Vac.

System Input Devices and Functions

The unit must have a thermostat input in order to
operate.

For units with Low Leak Economizer (LLE), the
thermostat must be a smart thermostat as listed by the
CEC (a list of thermostats can be found at

http://www.

energy.ca.gov/title24/equipment_cert/ocst/index.html

).

The descriptions of the following basic input devices
used within the unit are to acquaint the operator with
their function as they interface with the various
features. Refer to the unit’s electrical schematic for the
specific device connections. The following controls are
available from the factory for field installation.

Drain Pan Condensate Overflow Switch
(Optional)

This input incorporates the Condensate Overflow
Switch (COF) mounted on the drain pan. When the
condensate level reaches the trip point, the COF 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 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 range of 190–600 Vac, and LED indicators
for ON and FAULT. There are no field adjustments and
the module will automatically reset from a fault
condition.

Discharge Line Thermostat Control

The high pressure controls and the discharge line
thermostat 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.

Power Exhaust Control (Optional)

The power exhaust fan is started whenever the position
of the economizer dampers meets or exceed the power
exhaust setpoint when the indoor fan is on.

The setpoint panel is located in the return air section
and is factory set at 25% (50% for LLE).

To configure the LLE controller, set EXH1 SET (or EXH1
L & EXH1 H with two-speed fan) in the SETPOINTS
menu. 2-speed fan mode requires AUX2 I set as W.

Evaporator Frost Control

This input incorporates the Frostat

control (FOS)

mounted in the indoor coil and can be activated by
closing a field supplied contact installed in parallel with
the FOS.

If this circuit is open before the compressor is started,
the compressor will not be allowed to operate. Anytime
this circuit is opened for 5 continuous seconds during
compressor operation, the compressor for that circuit
is immediately turned “Off”. The compressor will not
be allowed to restart for a minimum of 3 minutes
should the FOS close.

Locking Safety Device with Anti-Short Cycle
Timer

This device monitors compressor safety switch trips to
prevent short cycling, protecting the compressor. A
manual reset is required after a fourth safety switch
trip.

Sensors

High Temperature Sensor (BAYFRST003*)

This sensor connects to the Emergency Stop Input on
the LTB and provides high limit “shutdown” of the unit.
The sensor is used to detect high temperatures due to
fire in the air conditioning or ventilation ducts. The

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Содержание Foundation GBC180

Страница 1: ...ng 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 th...

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: ...y Mounted Unit Options 26 Unit Disconnect FIYUDC 26 Through the Base Gas Utility Option 27 Field Installed Connections 27 Pre Start 29 Verifying Proper Air Flow Units with Belt Drive Indoor Fan 29 Ele...

Страница 5: ...t Up 39 Maintenance 40 Fan Belt Adjustment Belt Drive Units 40 Monthly Maintenance 41 Filters 41 Condensate Overflow Switch 41 Cooling Season 41 Heating Season 42 Coil Cleaning 42 Troubleshooting 45 S...

Страница 6: ...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 Fan Drive Type Motor...

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: ...ON G C UNIT ONLY CONDENSATE DRAIN CONNECTION Figure 3 Cooling with optional electrical heat front and side views gas electric NOTES 1 THROUGH THE BASE GAS AND ELECTRICAL IS NOT STANDARD ON ALL UNITS 2...

Страница 12: ...IMENSION WITH INSTALLER DOCUMENTS BEFORE INSTALLATION THROUGH THE BASE ELECTRICAL RETURN SUPPLY 7 3 8 123 1 8 THRU THE BASE GAS G C UNIT ONLY 36 1 16 6 15 16 6 13 16 68 9 16 7 7 16 14 15 16 71 15 16 6...

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 SVX51H 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: ...o the main power terminal block HTB1 in the unit control panel Install proper grounding wires to an earth ground N No ot te e All field installed wiring must comply with NEC and applicable local codes...

Страница 20: ...ration with the TCO1 from Step 2 for horizontal operation 4 Reinstall the heat section access panel Figure 17 Factory installed down flow TCO1 limit location Condensate Drain Configuration An evaporat...

Страница 21: ...or r s se er ri io ou us s i in nj ju ur ry y A Al ll l f fi ie el ld d w wi ir ri in ng g M MU US ST T 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...

Страница 22: ...g ge e a as s t th he e e eq qu ui ip pm me en nt t w wa as s n no ot t d de es si ig gn ne ed d o or r q qu ua al li if fi ie ed d t to o a ac cc ce ep pt t o ot th he er r t ty yp pe es s o of f c c...

Страница 23: ...14 inch W C to prevent component failure Drip leg installed in the gas piping near the unit Flue Exhaust clear of any obstruction Gas Heat Data Table 3 Gas heater operating data Heating Input Rate Btu...

Страница 24: ...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 o...

Страница 25: ...nnected for the proper rotation when the incoming power supply is phased as A B C Proper electrical supply phasing can be quickly determined and corrected before starting the unit by using an instrume...

Страница 26: ...Use the following checklist in conjunction with the general checklist General Unit Requirements p 18 to ensure that the unit is properly installed and ready for operation W WA AR RN NI IN NG G H Ha a...

Страница 27: ...ect the ground wire to the unit ground lug N No ot te e Wire size for the length of run should be determined using the circuit ampacity found on the unit nameplate and the N E C 4 Route low voltage cl...

Страница 28: ...yo ou ur r l lo oc ca al l s st ta at te e n na at ti io on na al l e el le ec ct tr ri ic ca al l c co od de es s I Im mp po or rt ta an nt t All phases of this installation must comply with NATIONAL...

Страница 29: ...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 30: ...tion 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 st...

Страница 31: ...or blower delay off at current speed The IGN de energizes the 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 Tabl...

Страница 32: ...d the potential for more fresh air than desired at higher fan speeds These minimum positions will be obtained from the Bldg Design Min Position and DCV Min Position pots on the RTEM EM The economizer...

Страница 33: ...0 v Off VENTMIN Closed On Off High 0 v Off 0 v Off VENTMIN to Full Open Closed 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...

Страница 34: ...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 14 Dry bulb operation no DCV CO2 sensor 2 speed f...

Страница 35: ...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 36: ...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 37: ...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 38: ...e should drop and the discharge 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 befo...

Страница 39: ...ation Refer to the programming instructions for the specific panel Verify that the Remote panel System selection switch Fan selection switch and Zone Temperature settings for automatic operation are c...

Страница 40: ...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 41: ...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 42: ...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 43: ...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 44: ...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 45: ...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...

Страница 46: ...d to see if it is causing the fault to occur Table 25 FDD troubleshooting FAULTS TESTS Air temp sensor failure fault Not economizing when it should Economizing when it should not Damper not modulating...

Страница 47: ...sh 1 30 Second On 1 4 Second Off 2 Seconds between pulse sequences Error Code 1 Flash Actuator Fault 2 Flashes CO2 Sensor 3 Flashes RA Humidity Sensor 4 Flashes RA Temp Sensor 6 Flashes OA Humidity Se...

Страница 48: ...r Description Constant Volume Power 208 230 1213 3650 Schematic PWR EM CO Gas Heat CV 460 575 1213 3651 Schematic PWR EM Gas Heat CV Control 208 575 1213 2969 GBC180 300 GBD180 300 60Hz 2 Stage Gas He...

Страница 49: ...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 50: ...50 RT SVX51H EN N No ot te es s...

Страница 51: ...RT SVX51H EN 51 N No ot te es s...

Страница 52: ...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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