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Model Number Description

RT-SVX38B-EN

5

E

Clogged Filter Switch

14

, Fan Failure

Switch

14

and Condensate Drain Pan

Overflow Switch

F

Clogged Filter Switch

14

, Discharge

Air Sensing Tube

14

and Condensate

Drain Pan Overflow Switch

G

Fan Failure Switch, Discharge Air
Sensing Tube

14

and Condensate

Drain Pan Overflow Switch

H

Clogged Filter Switch

14

, Fan Failure

Switch

14

, Discharge Air Sensing

14

and Condensate Drain Pan Overflow

Switch

Digit 26 - System Monitoring
Controls

0

No Monitoring Controls

A

Demand Control Ventilation

(CO

2

)

31

,

32

Digit 27 - Unit Hardware
Enhancements

0

No Enhancements

1

Stainless Steel Drain Pan

Model Number Notes

1.

Available on 3-5 ton models.

2. Standard on 4-5 Ton E3,4,W and

6-10Ton Heat Pumps and all High
Efficiency models.

3. Not available with

electromechanical controls.

4. Manual outside air damper will

ship factory supplied within the
unit, but must be field installed.

5. High pressure control is standard

on all units.

6. On 3-5 ton, multispeed direct

drive is standard on single phase
and 15 SEER. On 6-10 ton,
multispeed direct drive is
standard on all 10 ton and 7.5-8.5
ton high efficiency. Belt drive is
standard on all other units.

7.

Economizer with Barometric
Relief is for downflow configured
units only. Order Economizer
without Barometric Relief for

horizontal configuration.
Barometric Relief for horizontal
configured units must be ordered
as field installed accessory.

8. Through the base electric

required when ordering
disconnect/circuit breaker
options.

9. Requires use of Disconnect or

Circuit Breaker.

10. Standard metering devices are

TXVs.

11. Frostat cannot be field installed in

electro-mechanical units.

12. The return air smoke detector

may not fit up or work properly on
the Precedent units when used in
conjunction with 3rd party
accessories such as bolt on heat
wheels, economizers and power
exhaust. Do not order the return
air smoke detectors when using
this type of accessory.

13. Return Air Smoke Detector

cannot be ordered with Novar
Controls.

14. These options are standard when

ordering Novar Controls.

15. This option is used when

ordering Novar Controls.

16. Includes gas piping and shutoff

(field assembly required).

17. Not available with high

temperature duct sensor
accessory.

18. Digit 15 = 2

19. Novar Sensor utilized with

Digit 21 = (4) Novar 3051 Controls
without Zone Sensor.

20. Available for 10 ton standard

efficiency models only.

21. Available for 3, 4, 5, 6, 7½, 8½ ton

standard/high efficiency models
only.

22. Requires selection of 2” Pleated

Filters (option B or C) for Digit 16.

23. Not available on 6 ton units and

all single phase or standard
efficiency.

24. Standard on YSC 6, 7½ (single

and dual systems), 8½, 10 ton
standard efficiency models and

YHC 4, 5, 6, 7½ ton high efficiency

models (except for
dehumidification models).

25. Epoxy coil and epoxy with

hailguard options are not
available for units with
microchannel condenser coil.

26. Single Zone VAV is only available

on 7.5-10 ton high efficiency and
10 ton standard efficiency
products with ReliaTel™ controls.

27. Multi-speed indoor fan available

only on 7.5 & 8.5 ton high
efficiency, and 10 ton products
with ReliaTel™ controls.

28. Motorized Outside Air Damper is

not available on Multi-Speed or
SZVAV (Single Zone Variable Air

Volume) products.

29. Frostat standard on Multi-Speed

and SZVAV (Single Zone Variable

Air Volume) products.

30. Novar is not available with SZVAV

products.

31. Demand Control Ventilation not

available with electromechanical
controls.

32. Demand Control Ventilation

Option includes wiring only. The
C0

2

sensor is a field-installed only

option.

Digit 15 = 0

Standard Efficiency
1 Phase = High Efficiency Multispeed Direct 
Drive Motor
3 Phase (3-8½ Ton) = Belt Drive
3 Phase (10 Ton) = Ultra High Efficiency Direct 
Drive Plenum Fan
High Efficiency
1 Phase = High Efficiency Multispeed Direct 
Drive Motor
3 Phase (3-5 ton) = High Efficiency Multispeed 
Direct Drive Motor
3 Phase (3-5 ton w/Dehumidification) = Belt 
Drive Motor
3 Phase (7½-10 ton) = Ultra High Efficiency 
Direct Drive Plenum Fan

Not Available

Standard Efficiency
10 Ton w/575V

High Efficiency
3-5 ton w/Standard Indoor Motor w/460V

Standard Efficiency
1 Phase = Not Available
3 Phase = Not Available
High Efficiency
1 Phase = Not Available
3 Phase (3-5 ton) = May be Ordered

3 Phase (3-5 ton w/Dehumidification) = Not 
Available

3 Phase (6-10 ton) = Not Available

Summary of Contents for YSC060ED

Page 1: ...ning 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...

Page 2: ...sponsible management of refrigerants Know the applicable laws and follow them Revision Summary RT SVX38B EN 10 September 2012 MERV 8 filter with filter removal tool Stainless steel drain pan condensat...

Page 3: ...29 Voltage Imbalance 29 Electrical Phasing Three Phase Motors 29 Test Modes 31 Unit Start Up 32 Verifying Proper Air Flow 32 Economizer Start Up 32 Compressor Start Up 33 Final System Setup 33 Mainte...

Page 4: ...ed Condenser Coil25 3 Black Epoxy Pre Coated Condenser Coil with Hail Guard25 4 CompleteCoat Condenser Coil 5 CompleteCoat Condenser Coil with Hail Guard Digit 18 Through the Base Provisions 0 NoThrou...

Page 5: ...ntrols 15 This option is used when ordering Novar Controls 16 Includes gas piping and shutoff field assembly required 17 Not available with high temperature duct sensor accessory 18 Digit 15 2 19 Nova...

Page 6: ...ertinent unit data Compressor Nameplate The nameplate for the compressors are located on the side of the compressor Unit Description Before shipment each unit is leak tested dehydrated charged with re...

Page 7: ...is sent to the remote panel if the pressure differential across the filters is at least 0 5 w c The contacts will automatically open when the pressure differential across the filters decreases to appr...

Page 8: ...ming per day If the power is interrupted the program is retained in permanent memory If power is off for an extended period of time only the clock and day may have to be reset The Zone Sensor allows s...

Page 9: ...orporates the Frostat control FOS mounted in the indoor coil circuit and can be activated by closing a field supplied contact installed in parallel with the FOS If this circuit is open before the comp...

Page 10: ...stances necessary to assure adequate serviceability cataloged unit capacity and peak operating efficiency Providing less than the recommended clearances may result in condenser coil starvation short c...

Page 11: ...ons standard efficiency Notes 1 All dimensions are in inches millimeters 2 NPT Gas Connection Figure 3 5 tons standard efficiency roof curb Note All dimensions are in inches millimeters 7 44 44 MM MM...

Page 12: ...38B EN Figure 4 5 tons standard efficiency unit clearance and roof opening Note All dimensions are in inches millimeters CLEARANCE 36 914 MM Figure 5 6 7 tons standard efficiency Note All dimensions a...

Page 13: ...13 Figure 6 6 7 tons standard efficiency roof curb Note All dimensions are in inches millimeters 2130 MM 356 MM Figure 7 6 7 tons standard efficiency unit clearance and roof opening Note All dimensio...

Page 14: ...38B EN Figure 8 8 10 tons standard efficiency Note All dimensions are in inches millimeters 1 2 NPT GAS CONNECTION Figure 9 8 10 tons standard efficiency roof curb Note All dimensions are in inches mi...

Page 15: ...Unit Dimensions RT SVX38B EN 15 Figure 10 8 10 tons standard efficiency unit clearance and roof opening Note All dimensions are in inches millimeters...

Page 16: ...to the state of California to cause cancer through inhalation Glass wool fibers may also cause respiratory skin or eye irritation WARNING Heavy Objects Ensure that all the lifting equipment used is p...

Page 17: ...Width 5 YSC060E 689 312 584 264 181 82 144 65 122 55 137 62 40 1025 24 600 6 YSC072E 975 443 843 383 296 134 209 95 158 72 180 82 39 980 21 542 7 YSC090E 1016 461 884 401 346 157 198 90 159 72 181 82...

Page 18: ...ld be weather proofed after installation is completed Roof Curb Downflow The roof curbs for these units consists of a full perimeter enclosure to support the unit just inside of the unit base rail Bef...

Page 19: ...drill screws fastening wood protection to metal base rail Remove all screws securing wooden protection to wooden top crate On 7 10 ton high efficiency units remove wire ties from outdoor grill 2 Remo...

Page 20: ...h is attached to the combustion blower motor if horizontal discharge configuration is used Note The following units require a limit switch change out for horizontal discharge The additional limit swit...

Page 21: ...lling screws or screws removed from duct cover screw through dimples to attach DUCT COVER to base 4 On original RETURN DUCT COVER apply 6mm continuous bead of 500 F RTV sealant around flange opposite...

Page 22: ...provided on each unit Refer to Figure 13 p 18 and Figure 14 p 18 for the appropriate drain location The condensate drain pan is factory installed to drain condensate to the back side of the unit See...

Page 23: ...the field installed wiring entrance into the unit is illustrated in Unit Dimensions p 10 To insure that the unit s supply power wiring is properly sized and installed follow the following guidelines...

Page 24: ...t failure due to insufficient AC voltage supply Note Be sure to check all loads and conductors for grounds shorts and mis wiring 3 Do not run the AC low voltage wiring in the same conduit with the hig...

Page 25: ...g a number of remote sensors in a series parallel circuit Using the BAYSENS016 or BAYSENS077 at least four sensors are required to accomplish space temperature averaging See diagram below Table 5 Zone...

Page 26: ...of remote sensors is required Example 2 illustrates three sensors squared in a series parallel circuit Using BAYSENS077 two sensors are required to accomplish space temperature averaging Example 3 il...

Page 27: ...38B EN 27 Figure 29 Typical field wiring diagrams for optional controls ReliaTel only BAYSENS075 BAYSENS075 BAYSENS119 BAYSENS110 BAYSENS108 BAYSENS106 BAYSENS073 BAYSENS074 BAYSENS075 ASYSTAT669A OPT...

Page 28: ...al gas pipe mains and branches Iron Pipe Size IPS Inches Length of Pipe Ft Pipe Pipe 1 Pipe 1 Pipe 1 Pipe 15 76 176 345 750 1220 30 52 120 241 535 850 45 43 99 199 435 700 60 38 86 173 380 610 75 77 1...

Page 29: ...rrent imbalance with a resulting increase in motor winding temperatures that will decrease motor life If the voltage imbalance is over 2 notify the proper agencies to correct the voltage problem befor...

Page 30: ...switch and the unit mounted disconnect switch if applicable Note Upon closing main power disconnect and the unit mounted disconnect switch or circuit breaker the phase monitor will verify proper phasi...

Page 31: ...forms self diagnostic checks to insure that all internal controls are functional It also checks the configuration parameters against the components connected to the system The System LED located on th...

Page 32: ...p procedure Economizer Start Up ReliaTel Control Using the ServiceTest Guide in Table 6 p 30 momentarily jump across theTest 1 Test 2 terminals on LTB1 one time to start the Minimum VentilationTest 1...

Page 33: ...n the heating mode Momentarily jump across theTest 1 Test 2 terminals on LTB1 one additional time if continuing from previous component start up or until the desired start up componentTest is started...

Page 34: ...side the range readjust the belt tension Note Actual belt deflection force must not exceed the maximum force value shown in Table 10 7 Recheck the belt tension at least twice during the first 2 to 3 d...

Page 35: ...or replace them Check supply fan motor bearings repair or replace the motor as necessary Inspect both the main unit control panel and heat section control box for loose electrical components and termi...

Page 36: ...l all of the components and panels removed in Step 1 and any protective covers installed in Step 2 Note For units equipped with hail guards follow reinstallation procedure listed below Hail Guard Rein...

Page 37: ...ant Circuit 2 Date Current Ambient Temp 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 Compr Oil Level Suct Press Psig kPa Disch Press P...

Page 38: ...ce of operations for each mode to assist in verifying proper operation Make the necessary repairs and proceed to Steps 7 and 8 7 If no abnormal operating conditions appear in the test mode exit the te...

Page 39: ...tem Failure Measure the voltage between terminals J6 9 J6 6 Normal Operation approximately 32 VDC System Failure less than 1 VDC approximately 0 75 VDC Test Mode voltage alternates between 32VDC 0 75...

Page 40: ...the fan proving switch is closed indicating a fan failure and it will shut the unit operations down Condensate Overflow Switch When the Condensate Overflow Switch is closed a drain pan overflow condi...

Page 41: ...nd runs continuously the ZSM is good If you are not able to turn the fan on the ZSM is defective ReliaTel Refrigeration Module RTRM Default Chart If the RTCI loses input from the building management s...

Page 42: ...1 or CC2 24 VAC control circuit has opened check CC1 CC2 coils and any of the controls below that apply to the unit HPC1 HPC2 LPC1 LPC2 Frostat Resetting Cooling and Ignition Lockouts Cooling Failures...

Page 43: ...chnical support Table 13 Unit wiring diagram numbers Schematic Type Schematic Type Schematic Type Description Control 4366 1012 0110 Power 4366 1005 0104 Connection Diagram 4366 1543 0110 060E 4366 10...

Page 44: ...IMPLIED IN LAW OR IN FACT INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR USE AND IN NO EVENT SHALLWARRANTOR BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES Some state...

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Page 48: ...dvanced controls and HVAC systems comprehensive building services and parts For more information visit www IRCO com The manufacturer has a policy of continuous product and product data improvement and...

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