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60

Unit Start-Up (Continued)

[ ] Observe the ABC and CBA phase indicator lights on the

face of the sequencer. The ABC indicator light will glow
if the phase is ABC. If the CBA indicator light glows,
open the disconnect switch or circuit protection switch
and reverse any two power wires.

[ ] Restore the main electrical power and recheck the

phasing. If the phasing is correct, open the disconnect
switch or circuit protection switch and remove the phase
sequence indicator.

Voltage Supply and Voltage Imbalance

Voltage Supply

Electrical power to the unit must meet stringent require-
ments for the unit to operate properly. Measure each leg
(phase-to-phase) of the power supply. Each reading must
fall within the utilization range stamped on the unit name-
plate. If any of the readings do not fall within the proper tol-
erances, notify the power company to correct this situation
before operating the unit.

WARNING

Live Electrical Components!

During installation, testing, servicing and troubleshoot-
ing of this product, it may be necessary to work with live
electrical components. Have a qualified licensed electri-
cian or other individual who has been properly trained in
handling live electrical components perform these
tasks. Failure to follow all electrical safety precautions
when exposed to live electrical components could result
in death or serious injury.

Voltage Imbalance

Excessive three phase voltage imbalance between phases
will cause motors to overheat and eventually fail. The maxi-
mum allowable voltage imbalance is 2%. Measure and
record the voltage between phases 1, 2, and 3 and calcu-
late the amount of imbalance as follows:

% Voltage Imbalance =

100 X

AV - VD

where;

AV

AV (Average Voltage) =

Volt 1 + Volt 2 + Volt 3

3

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:

221 + 230 + 227 = 226 Avg.

3

VD (reading farthest from average) = 221

The percentage of Imbalance equals:

100 X 226 - 221 = 2.2%

226

The 2.2% imbalance in this example exceeds the maximum
allowable imbalance of 2.0%. This much imbalance be-
tween phases can equal as much as a 20% current imbal-
ance with a resulting increase in motor winding tempera-
tures that will decrease motor life. If the voltage imbalance
is over 2%, notify the proper agencies to correct the voltage
problem before operating this equipment.

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Содержание INTELLIPAK RT-SVX10C-EN

Страница 1: ...SVX10C EN 11 04 2004 American Standard Inc All rights reserved INTELLIPAK Commercial Single Zone Rooftop Air Conditioners with CV or VAV Controls Units whose model numbers have a 1 in digit 20 are ce...

Страница 2: ...X and later de sign sequence with constant volume CV or variable air vol ume VAV controls SXH_ IOM 9 November 2002 Re issue of manual for minor clarity issues provides specific installation operation...

Страница 3: ...t Switch Sizing DSS 44 Field Installed Control Wiring 45 Controls using 24 VAC 45 Controls using DC Analog Input Outputs 45 Constant Volume System Controls 45 Variable Air Volume System Controls 46 Co...

Страница 4: ...Drive 0 Standard electric heat utilizing 208V or 0 None 8 800 PRM 1 0 Degree Fahrenheit 230V require dual power source 4 400 RPM 9 900 RPM 5 500 RPM A 1000 RPM Digit 20 Agency Approval Digit 9 Heating...

Страница 5: ...Note When the second digit calls Digit 16 Fresh Air Coil 90 105 Only for E electric heat the following D 0 100 Economizer Std 27 K Generic BAS Module values apply in the ninth digit 28 L High Efficien...

Страница 6: ...ally listed and defined below BAS Building automation systems CFM Cubic feet per minute CKT Circuit CV Constant volume CW Clockwise CCW Counterclockwise E A Exhaust air ECEM Exhaust comparative enthal...

Страница 7: ...module initiates specified func tions such as space pressurization exhaust purge purge with duct pressure control and unit off when any one of the five 5 binary inputs to the module are activated The...

Страница 8: ...log input device used with CV VAV applications It monitors the supply air temperature for supply air tem perature control VAV supply air temperature reset VAV supply air temperature low limiting CV su...

Страница 9: ...ensors on CV VAV applications During a request for compressor operation when the condensing tempera ture rises above the lower limit of the controlband the Compressor Module SCM MCM starts sequencing...

Страница 10: ...r operation for that circuit and initiates a manual reset diag nostic Supply Air Temperature Low Limit Uses the supply air temperature sensor input to modulate the economizer damper to minimum positio...

Страница 11: ...ing the VAV boxes the VFD IGV output will go back to duct static pressure control and the unit will return to discharge air control If the occ zone heating setpoint is less than the DWU terminate setp...

Страница 12: ...ls and customer binary contacts to satisfy the applicable request for economizing mechanical cooling heating and ventilation Figure 9 below illustrates the typical location of each 1U designated modul...

Страница 13: ...cket Bracke Bracket 1PCB MOD 1PCB MOD 1U55 1U55 ECEM ECEM 1U52 1U52 1TB9 1TB9 J2 1 J2 1 J1 1 J1 1 J1 1 J1 1 J2 1 J2 1 Mounting Mounting Plate Plate Mounting Mounting Plate Plate J1 1 J1 1 J2 1 J2 1 J2...

Страница 14: ...tch Sizing DSS 44 Field Installed Control Wiring 45 Controls using 24 VAC 45 Controls using DC Analog Input Outputs 45 Constant Volume System Controls 45 Variable Air Volume System Controls 46 Constan...

Страница 15: ...he compressors Storage Take precautions to prevent condensate from forming inside the unit s electrical compartments and motors if a the unit is stored before it is installed or b the unit is set on t...

Страница 16: ...15 Figure 3 1 Minimum Operation and Service Clearances for Single Multiple Unit Installation...

Страница 17: ...16 Figure 3 2A SAHF Cooling Only Units 20 thru 75 Ton...

Страница 18: ...70 75 Ton 27 0 6 1 5 8 9 8 6 7 3 8 5 9 5 16 15 11 1 8 1 8 1 4 Table 3 1B Unit Base Dimensional Data Unit Dimensions Size A B C D E F G 20 30 Ton 14 0 1 4 2 2 1 2 11 3 4 5 7 3 4 3 8 5 13 16 6 6 15 16...

Страница 19: ...18 Figure 3 2B SEHF SFHF SLHF SSHF SXHF Units 20 thru 75 Ton...

Страница 20: ...16 60 Ton 19 10 5 16 2 5 6 1 16 Note 1 4 5 3 8 5 13 16 7 8 3 16 18 11 11 16 70 75 Ton 19 10 5 16 2 5 6 1 16 Note 1 4 5 3 8 5 13 16 7 8 3 16 18 11 11 16 Unit Dimensions Size J K L 20 30 Ton 16 9 3 4 8...

Страница 21: ...20 Figure 3 2C S_HG Cooling Heating Units 90 through 130 Ton...

Страница 22: ...9 C75 17 5 4 8 18 9 4 10 16 7 4 9 SFHF C20 13 10 3 8 14 8 3 10 13 1 3 9 C25 14 0 3 7 14 10 3 9 13 3 3 8 C30 13 8 3 8 14 6 3 9 13 0 3 9 C40 17 3 3 9 18 5 3 11 16 6 3 10 C50 18 2 3 10 19 4 4 0 17 4 3 11...

Страница 23: ...talled 3 Roof curb weights include the curb and pedestal Roof Curb and Ductwork The roof curbs for 20 through 130 Ton units consists of two main components a pedestal to support the unit s con denser...

Страница 24: ...with the curb rail while lowering the unit onto the curb Make sure that the gasket on the curb is not damaged while positioning the unit The pedestal simply supports the unit s condenser section A cr...

Страница 25: ...24 Figure 3 4 Typical Unit Rigging Figure 3 5 Unit Base Roof Curb Section...

Страница 26: ...to a field supplied installed disconnect and unit Properly ground the unit Note All field installed wiring must comply with NEC and applicable local codes Field Installed Control Wiring Complete the f...

Страница 27: ...of steam trap Position the steam trap discharge at least 12 below the outlet connection on the coil Use float and thermostatic traps in the system as re quired by the application O A Pressure Sensor...

Страница 28: ...e four anchor bolts 2 front and 2 rear used to secure the shipping brace to the unit s base rail two assemblies on 40 through 60 Ton units 2 Remove the three self tapping screws that secure each shipp...

Страница 29: ...ll Compressor Shipping Hardware for 20 through 60 Ton Units Figure 3 7B Removing Scroll Compressor Shipping Hardware for 70 through 105 Ton Units Figure 3 7C Removing Scroll Compressor Shipping Hardwa...

Страница 30: ...between the fan assembly rails and the unit s base rail 3 Lower the fan and motor assembly onto the isolators Make sure that the pins at the top of the isolators are en gaged in the corresponding hole...

Страница 31: ...8 Removing Fan Assembly Shipping Hardware 20 through 75 Ton Note Fan assemblies not equipped with rubber or spring isolators have mounting bolts at the same locations and must not be removed 90 throu...

Страница 32: ...g bracket 2 of 3 16 O D pneumatic tubing Mounting hardware 2 Using two 10 32 x 1 3 4 screws provided install the sensor s mounting bracket to the factory installed bracket near the filter section 3 Us...

Страница 33: ...connecting to it 3 Take all branch piping from any main gas line from the top at 90 degrees or at 45 degrees to prevent moisture from being drawn in with the gas 4 Ensure that all piping connections a...

Страница 34: ...930 1500 2600 5400 Example A 40 pipe run is needed to 100 305 460 870 1400 2500 5100 connect a unit with a 500 MBH furnace to a 125 275 410 780 1250 2200 4500 natural gas supply having a rating of 1 0...

Страница 35: ...f the unit Once the unit is set into place the hot water piping and the factory provided three way modulating valve must be installed The valve can be in stalled inside the heat section or near the un...

Страница 36: ...field supplied wiring to extend the control wires from the heater section to the valve Two access holes are pro vided in the unit base as illustrated in Figure 3 2 Following the guidelines listed belo...

Страница 37: ...listed below should be used in addition to the previous steps Fig ure 3 13 illustrates the recommended piping configuration for the steam coils 13 Install a strainer in each return line before the ste...

Страница 38: ...37 Figure 3 13 Steam Coil Piping 20 through 30 Ton Units Steam Coil Piping 40 through 130 Ton Units...

Страница 39: ...erify that the power supply available is compatible with the unit s nameplate rating for all components The avail able power supply must be within 10 of the rated voltage stamped on the nameplate Use...

Страница 40: ...culation for determining the correct size 3 Location for the electrical service entrance is illustrated in Figure 3 2 Complete the unit s power wiring connections onto either the main terminal block 1...

Страница 41: ...40 Figure 3 14 Continued Typical Field Power Wiring 90 thru 130 Ton Table 3 6 Customer Connection Wire Range...

Страница 42: ...76 27 3 178 21 8 143 1 2C 105 1 2A 62 8 409 62 8 376 27 3 178 21 8 143 1 2B 1 2C 115 1 2A 62 8 409 62 8 376 27 3 178 21 8 143 1 2B 1 2C 41 9 269 41 9 251 18 2 117 14 6 94 1 2D 130 1 2A B C D 62 8 409...

Страница 43: ...Ton Std and Hi Capacity Two 9 Ton Scrolls A B 25 Ton Std and Hi Capacity One 14 Ton Scroll B One 9 Ton Scroll A 30 Ton Std and Hi Capacity Two 14 Ton Scrolls A B 40 Ton Std and Hi Capacity Four 9 Ton...

Страница 44: ...s RDE 1 5 x LOAD1 LOAD2 LOAD4 Select a fuse rating equal to the RDE value If the RDE value does not equal a standard fuse size as listed in NEC 240 6 select the next higher standard fuse rating Note I...

Страница 45: ...P value does not equal a standard fuse size as listed in NEC 240 6 select the next lower standard fuse rating see note be low for exception Note If selected MOP is less than the MCA obtained in the eq...

Страница 46: ...uge d Do not run the AC low voltage wiring in the same conduit with the high voltage power wiring Controls using DC Analog Input Outputs Before installing any connecting wiring between the unit and co...

Страница 47: ...itch as well as a S A temperature setpoint indicator a local sensor and four LED s These features allow the operator to control system operation and monitor unit operating status from a remote locatio...

Страница 48: ...Exhaust fan ON Exhaust dampers Open O A dampers Closed Heat All stages OFF Modulating Heat output at 0 vdc Occupied Unoccupied output De energized Occupied VO Relay Energized Pre heater State Off if e...

Страница 49: ...neric BAS Module 1U51 i e unit model number digit 21 is a K a normally open N O switch may be used to limit the electrical power us age during peak periods When demand limit is initiated the mechanica...

Страница 50: ...49 Figure 3 16A Typical Field Wiring Diagram for 20 through 130 Ton CV Control Options Refer to Wiring Notes on page 51...

Страница 51: ...50 Figure 3 16B Typical Ventilation Override Binary Output Wiring Diagram for 20 through 130 Ton CV Control Options Refer to Wiring Notes on page 51...

Страница 52: ...51 Field Connection Diagram Notes for 20 through 130 Ton CV or VAV Applications...

Страница 53: ...52 Figure 3 17A Typical Field Wiring Diagram for 20 through 130 Ton VAV Control Option Refer to Wiring Notes on page 51...

Страница 54: ...53 Figure 3 17B Typical Ventilation Override Binary Output Wiring Diagram for 20 through 130 Ton VAV Control Options Refer to Wiring Notes on page 51...

Страница 55: ...Heating Setpoint 0 5 to 4 5 vdc 50 F to 90 F x S A Cooling Setpoint 0 5 to 4 5 vdc 40 F to 90 F x S A Heating Setpoint VAV Hydro Only 0 5 to 4 5 vdc 40 F to 180 F x x Space Static Pressure Setpoint 0...

Страница 56: ...tch Sizing DSS 44 Field Installed Control Wiring 45 Controls using 24 VAC 45 Controls using DC Analog Input Outputs 45 Constant Volume System Controls 45 Variable Air Volume System Controls 46 Constan...

Страница 57: ...e sensor the RTM evaluates the operating con dition of the system using the supply air temperature input and the outdoor temperature input before sending the re quest to the SCM MCM for mechanical coo...

Страница 58: ...hes the combustion blower motor to high speed and energizes the 2nd stage solenoid on the gas valve 4L15 If the flame rod 4U19 does not detect a flame at the time of an initial call for heat or detect...

Страница 59: ...ess the reset button on the front of the IC board case The system will operate in the low heat mode until there is an additional call for heat is established by closing the K3 contacts on the Heat Mod...

Страница 60: ...able 5 1 The HEAT 2 4K36 4K37 and HEAT 3 4K38 4K39 con tactors are not energized unless the 1st stage bank of heat ing elements already operating are not satisfying the heat ing load Wet Heat Sequence...

Страница 61: ...h or without HGBP 55 F for 20 40 Ton 50 F for 25 30 Ton 45 F for 70 thru 130 Ton 40 F for 55 Ton 35 F for 50 Ton 30 F for 60 Ton Units with Low Ambient option without HGBP 0 F Units with Low Ambient o...

Страница 62: ...ther individual who has been properly trained in handling live electrical components perform these tasks Failure to follow all electrical safety precautions when exposed to live electrical components...

Страница 63: ...K3 Off K12 Off K4 On Closed Closed Closed 0 Default 2A Off 2B On 2C 2D Off Off 1A Off 1B Off Off Off Off K11 Off K3 On K12 Off K4 Off Closed Closed Closed 0 Default 2A On 2B Off CONDENSER FANS 20 Ton...

Страница 64: ...c Open Stage 1 On Off All Off On Off N A Off Off Off Off Closed Closed 100 100 Unocc Open Stage 2 On Off All Off Off On N A Off Off Off Off Closed Closed 100 100 Unocc Open Full Modulating On Off All...

Страница 65: ...per Fan Rotation 1 Ensure that the System selection switch at the remote panel is in the Off position and the Fan selection switch for constant volume units is in the Auto position VAV units do not ut...

Страница 66: ...s perform these tasks Failure to follow all electrical safety precautions when exposed to live electrical components could result in death or serious injury 7 Press the TEST START key to start the tes...

Страница 67: ...NEXT key until the LCD displays the Start test in __Sec screen Press the key to designate the de lay before the test is to start This service test will begin after the TEST START key is pressed and th...

Страница 68: ...e before the fans will begin to operate 7 With the exhaust dampers open and the exhaust fan op erating at full airflow capability measure the amperage at the exhaust fan contactor 1K17 If the amperage...

Страница 69: ...1700 RPM 1600 RPM 1500 RPM 1400 RPM 1300 RPM 1200 RPM 1100 RPM 1000 RPM 900 RPM 800 RPM 700 RPM 600 RPM 500 RPM 15 HP 10 HP 7 5 HP 5 HP 3 HP 20 HP 30 Ton Supply Fan Performance without Inlet Guide Va...

Страница 70: ...Maximum RPM 7 5 15 HP 1141 20 30 HP 1170 Maximum CFM C40 18 000 C50 22 500 C55 24 000 Maximum Static Pressure Leaving the Unit 4 0 w c 90 80 60 70 75 Ton Supply Fan Performance without Inlet Guide Van...

Страница 71: ...000 20000 30000 40000 50000 60000 0 1 2 3 4 5 6 7 8 9 4 0 W O C F M 5 0 W O C F M 6 0 W O C F M 90 WOCFM 80 W OCFM 7 0 W O C F M 1 0 0 H P 7 5 H P 6 0 H P 5 0 H P 4 0 H P 3 0 H P 2 5 H P 2 0 H P 1600...

Страница 72: ...0 075 lb cu ft 20 60 Ton Standard Evaporator Coil Airside Pressure Drop Inches H 2 0 Unit Airflow CFM Dry Airside Pressure Drop at 0 075 lb cu ft 20 through 60 Ton Standard Evaporator Coil 3000 4000 5...

Страница 73: ...Drop at 0 075 lb cu ft 70 130 Ton Ton Standard Evaporator Coil Airside Pressure Drop Inches H 2 0 Unit Airflow CFM Dry Airside Pressure Drop at 0 075 lb cu ft 70 through 130 Ton Standard Evaporator Co...

Страница 74: ...Cap Evaporator Coil Hi Cap Not Available on 115 130 Ton Units Airside Pressure Drop Inches H 2 0 Unit Airflow CFM Dry Airside Pressure Drop at 0 075 lb cu ft 20 through 105 Ton Hi Cap Evaporator Coil...

Страница 75: ...mum Motor HP C20 C25 15 HP Maximum RPM 3 HP 5 HP 1100 7 5 HP 15 HP 1655 Maximum CFM C20 9 000 C25 11 000 Maximum Static Pressure Leaving the Unit 4 0 w c 80 30 Ton Supply Fan Performance with Inlet Gu...

Страница 76: ...Maximum RPM 7 5 15 HP 1141 20 30 HP 1170 Maximum CFM C40 18 000 C50 22 500 C55 24 000 Maximum Static Pressure Leaving the Unit 4 0 w c 90 80 60 70 75 Ton Supply Fan Performance with Inlet Guide Vanes...

Страница 77: ...0 20000 30000 40000 50000 60000 0 1 2 3 4 5 6 7 8 9 4 0 W O C F M 5 0 W O C F M 6 0 W O C F M 90 WOCFM 80 W O CFM 7 0 W O C F M 1 0 0 H P 7 5 H P 6 0 H P 5 0 H P 4 0 H P 3 0 H P 2 5 H P 2 0 H P 1600 R...

Страница 78: ...63 36 62 21 21 10 23 20 10 000 17 13 23 17 12 10 11 13 16 07 15 04 04 01 37 30 03 05 14 000 29 22 39 29 26 20 22 22 28 15 28 07 07 03 56 50 07 08 50 55 17 000 39 30 53 40 39 29 32 31 40 22 41 10 10 04...

Страница 79: ...sure to enter fan selection tables 2 Gas heat section maximum temperature rise of 60 F 3 Throwaway filter option limited to 300 ft min face velocity 4 Bag filter option limited to 740 ft min face velo...

Страница 80: ...63 3 35 628 4 04 693 4 83 757 5 71 817 6 63 873 8 53 14 000 486 3 22 542 3 86 594 4 47 653 5 25 707 6 04 763 6 91 819 7 86 874 8 89 16 000 537 4 55 592 5 35 636 6 00 683 6 74 735 7 64 783 8 53 831 9 4...

Страница 81: ...83 495 1 05 557 1 29 621 1 57 680 1 87 732 2 16 7 000 472 1 55 522 1 82 563 2 04 606 2 29 653 2 59 698 2 91 742 3 24 9 000 578 3 06 621 3 41 661 3 76 695 4 06 725 4 34 758 4 65 794 5 01 11 000 688 5 3...

Страница 82: ...wer before ser vicing could result in death or serious injury HIGH VOLTAGE IS PRESENT AT TERMINAL BLOCK 1TB1 OR UNIT DISCONNECT SWITCH 1S14 2 Close the disconnect switch or circuit protector switch th...

Страница 83: ...talled in Position 1 Fresh Air Damper Pressure Drop inches w c 20 and 25 Ton Units 50 55 Ton Units Damper Position Damper Position CFM 1 2 3 4 5 6 CFM 1 2 3 4 5 6 4000 0 03 0 04 0 06 0 13 0 16 0 33 10...

Страница 84: ...the following system compo nents for operation by scrolling through the displays 20 to 30 Ton Compressor 1A On Compressor 1B Off Condenser Fans 40 through 60 Ton Compressor 1A On Compressor 1B Off Com...

Страница 85: ...sing pressure This causes a low differential across the thermal expansion valve that limits its capacity Under these conditions it is not unusual to hear the com pressor rattle until the suction press...

Страница 86: ...84 Figure 4 6 Compressor Locations...

Страница 87: ...o the left for the discharge pressure The measured discharge pressure should be within 7 psig of the graph 25 Ton Operating Pressure Curve All Compressors and Condenser Fans On COOLING CYCLE PRESSURE...

Страница 88: ...to the left for the discharge pressure The measured discharge pressure should be within 7 psig of the graph 40 Ton Operating Pressure Curve All Compressors and Condenser Fans per ckt On COOLING CYCLE...

Страница 89: ...Measure the discharge and suction pressure psig next to the compressor 4 Plot the outdoor dry bulb temperature and the operating suction pressure psig onto the chart 5 At the point of intersection re...

Страница 90: ...CYCLE PRESSURE CURVE Based on Indoor Airflow of 400 CFM Ton FULL LOAD 180 200 220 240 260 280 300 320 340 360 380 50 55 60 65 70 75 80 85 90 95 100 SUCTION PRESSURE PSIG DISCHARGE PRESSURE PSIG 105 F...

Страница 91: ...mbient 85 F OD Ambient 95 F OD Ambient 105 F OD Ambient Discharge Pressure PSIG Suction Pressure PSIG 70 Ton Standard Operating Pressure Curve All Compressors and Condenser Fans per ckt On 50 55 60 65...

Страница 92: ...75 F OD Ambient 85 F OD Ambient 95 F OD Ambient 105 F OD Ambient Discharge Pressure PSIG Suction Pressure PSIG 75 Ton Hi Cap Operating Pressure Curve All Compressors and Condenser Fans per ckt On 50 5...

Страница 93: ...e left for the discharge pressure The measured discharge pressure should be within 7 psig of the graph 105 Ton Standard Hi Cap Operating Pressure Curve All Compressors and Condenser Fans per ckt On CO...

Страница 94: ...read to the left for the discharge pressure The measured discharge pressure should be within 7 psig of the graph 130 Ton Operating Pressure Curve All Compressors and Condenser Fans per ckt COOLING CYC...

Страница 95: ...0 0 55 40 10 0 50 35 10 0 60 30 10 0 Notes 1 Min starting ambients in degrees F and is based on unit operating at min step of unloading unloading 5 mph wind across condenser 2 With or Without HGBP The...

Страница 96: ...key to display the first service screen Refer to the latest edition of the appropriate SAHF PTG manual for CV or VAV ap plications for the SERVICE TEST screens and program ming instructions 5 Use Tabl...

Страница 97: ...l flame has a clearly defined shape and is primarily 75 blue in color with an orange tip 5 Check the manifold gas pressure by using the manifold pressure port on the gas valve Refer to Table 4 7 for t...

Страница 98: ...See Notes Furnace MBH Firing Manifold Stage Rate CO2 Pressure High Fire 235 100 8 5 9 5 3 0 3 5 Low Fire 117 50 6 0 7 0 0 9 High Fire 350 100 8 5 9 5 3 0 3 5 Low Fire 175 50 6 0 7 0 0 9 High Fire 500...

Страница 99: ...this choice 3 Press the TEST START key to start the test Remember that the delay designated in step 2 must elapse before the system will begin to operate WARNING Rotating Components During installatio...

Страница 100: ...dule is an inverse proportional 5 10V DC The higher the voltage signal the lower the call for heat The 5 10V DC signal controls the angular position of the combustion air damper through a direct coupl...

Страница 101: ...ess the SETUP key The LCD screen will display various preset parameters of operation based on the unit type size and the in stalled options Compare the factory preset information to the specified appl...

Страница 102: ...ctrical Characteristics 200V 230V 460V 575V Unit Compr Compr Must Must Must Must Must Must Must Must Size Desig Size Hold Trip Hold Trip Hold Trip Hold Trip 20 A B 9 ton 51 58 7 51 58 7 22 2 25 5 17 7...

Страница 103: ...101 Service Maintenance Continued Table 5 3 Unit Internal Fuse Replacement Data VFD Factory Settings...

Страница 104: ...D12 25 24 X 24 X 2 3 12 X 24 X 19 3 12 X 24 X 12 3 20 X 24 X 2 S_HG D13 15 24 X 24 X 19 15 24 X 24 X 12 15 24 X 24 X 2 Notes 1 Dimensions shown for Panel Type Filters apply to Throw away Cleanable Wir...

Страница 105: ...148 37 90 I F Condenser wavy 3B 0 375 3 168 70 00 smooth S HF C55 Evaporator wavy 3B 0 5 3 148 37 90 I F Hi Cap Evaporator wavy 3B 0 5 4 148 37 90 I F Condenser wavy 3B 0 375 4 144 70 00 smooth S HF C...

Страница 106: ...ween the fan and motor sheaves b Divide the distance measured in Step 1a by 64 the resulting value represents the amount of belt deflection that corresponds to the proper belt tension 2 Set the large...

Страница 107: ...Illustrated Scroll Compressor Replacement The compressor manifold system was purposely designed to provide proper oil return to each compressors The refrig erant manifold system must not be modified i...

Страница 108: ...5 Motor Current Set Based on Motor Nameplate Sets the motor FLA 106 Motor RPM Set Based on Motor Nameplate Sets the motor RPM Reference Limits 215 Current Limit 1 x Rated Current Limits the maximum cu...

Страница 109: ...cing could result in death or serious injury Filters Inspect the return air filters Clean or replace them if nec essary Refer to the Table 5 4 for filter information Cooling Season Check the unit s dr...

Страница 110: ...After greasing the bearings check the setscrews to ensure that the shaft is held securely Make sure that all bearing braces are tight Inspect both the main unit control panel and heat section control...

Страница 111: ...mage 6 Rinse both sides of the coil with cool clean water 7 Inspect both sides of the coil if it still appears to be dirty repeat Steps 7 and 8 8 Reinstall all of the components and panels removed in...

Страница 112: ...ok ok low low ok ok low low ok ok low low ok ok low low Note Check and record the data requested above each month during the cooling season with the unit running Table 5 8 Sample Operator s Maintenan...

Страница 113: ...re Range 40 See Table 3 6 CV Control Options 49 53 See Figure 3 16 Figure 3 17 D Damper Adjustment 93 See Low Ambient Dampers Damper Installation 94 See Low Ambient Dampers Daytime Warm up 11 DC Condu...

Страница 114: ...urnace M Manifold Pressures and CO2 Levels 96 See Gas Furnace Start Up Table 4 7 Measuring Subcooling 93 See Charging by Subcooling Measuring Superheat 93 Minimum Position Potentiometer 47 Model Numbe...

Страница 115: ...pression setting 9 Thermostatic Expansion Valves 83 Trane Communications Interface Module 7 Trane OIL 42 83 Transducer Voltage Output vs Pressure Input 10 TraqTM Sensor Airflow Measurement 66 Two Stag...

Страница 116: ...herein are in lieu of all other warranties and liabilities whether in contract or in negligence express or implied in law or in fact including implied warranties of merchantability and fitness for pa...

Страница 117: ...115...

Страница 118: ...116...

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