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©2022

PKGP-SVX011A-EN

Introduction

Read this manual thoroughly before operating or servicing
this unit.

Warnings, Cautions, and Notices

Safety advisories appear throughout this manual as
required. Your personal safety and the proper operation of
this machine depend upon the strict observance of these
precautions.

The three types of advisories are defined as follows:

WARNING

Indicates a potentially hazardous situation which, if
not avoided, could result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation which, if
not avoided, could result in minor or moderate
injury. It could also be used to alert against unsafe
practices.

NOTICE

Indicates a situation that could result in equipment
or property-damage only accidents.

Important Environmental Concerns

Scientific research has shown that certain man-made
chemicals can affect the earth’s naturally occurring
stratospheric ozone layer when released to the
atmosphere. In particular, several of the identified
chemicals that may affect the ozone layer are refrigerants
that contain Chlorine, Fluorine and Carbon (CFCs) and
those containing Hydrogen, Chlorine, Fluorine and Carbon
(HCFCs). Not all refrigerants containing these compounds
have the same potential impact to the environment. Trane
advocates the responsible handling of all refrigerants-
including industry replacements for CFCs and HCFCs such
as saturated or unsaturated HFCs and HCFCs.

Important Responsible Refrigerant
Practices

Trane believes that responsible refrigerant practices are
important to the environment, our customers, and the air
conditioning industry. All technicians who handle
refrigerants must be certified according to local rules. For
the USA, the Federal Clean Air Act (Section 608) sets forth
the requirements for handling, reclaiming, recovering and
recycling of certain refrigerants and the equipment that is
used in these service procedures. In addition, some states
or municipalities may have additional requirements that
must also be adhered to for responsible management of
refrigerants. Know the applicable laws and follow them.

WARNING

Proper Field Wiring and Grounding
Required!

Failure to follow code could result in death or serious
injury.
All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements
for field wiring installation and grounding as
described in NEC and your local/state/national
electrical codes.

WARNING

Personal Protective Equipment (PPE)
Required!

Failure to wear proper PPE for the job being
undertaken could result in death or serious injury.
Technicians, in order to protect themselves from
potential electrical, mechanical, and chemical
hazards, MUST follow precautions in this manual and
on the tags, stickers, and labels, as well as the
instructions below:

Before installing/servicing this unit, technicians
MUST put on all PPE required for the work being
undertaken (Examples; cut resistant gloves/
sleeves, butyl gloves, safety glasses, hard hat/
bump cap, fall protection, electrical PPE and arc
flash clothing). ALWAYS refer to appropriate
Safety Data Sheets (SDS) and OSHA guidelines
for proper PPE.

When working with or around hazardous
chemicals, ALWAYS refer to the appropriate
SDS and OSHA/GHS (Global Harmonized
System of Classification and Labelling of
Chemicals) guidelines for information on
allowable personal exposure levels, proper
respiratory protection and handling
instructions.

If there is a risk of energized electrical contact,
arc, or flash, technicians MUST put on all PPE in
accordance with OSHA, NFPA 70E, or other
country-specific requirements for arc flash
protection, PRIOR to servicing the unit. NEVER
PERFORM ANY SWITCHING, DISCONNECTING,
OR VOLTAGE TESTING WITHOUT PROPER
ELECTRICAL PPE AND ARC FLASH CLOTHING.
ENSURE ELECTRICAL METERS AND
EQUIPMENT ARE PROPERLY RATED FOR
INTENDED VOLTAGE.

Summary of Contents for Precedent WHJ150

Page 1: ...perly 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 s...

Page 2: ...at is used in these service procedures In addition some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants Know the appli...

Page 3: ...t than these policies those regulations supersede these policies Non Trane personnel should always follow local regulations Copyright This document and the information in it are the property of Trane...

Page 4: ...BAYSENS135 10 Touch Screen Programmable Zone Sensor BAYSENS800 11 Evaporator Frost Control 11 Discharge Line Temp Switch DLTS 11 Smoke Detector Sensor Optional 11 Phase Monitor 11 Pre Installation 12...

Page 5: ...nthly Maintenance 36 Filters 36 Return Air Smoke Detector Maintenance 36 Condensate Overflow Switch 36 Cooling Season 36 Heating Season 36 Coil Cleaning 37 Coil Cleaning Procedure 37 Annual Maintenanc...

Page 6: ...Oversized High Static Motor 2 Single Zone Variable Air Volume with Standard Motor 3 Single Zone Variable Air Volume with Oversized High Static Motor 4 Multiple Zone Variable Air Volume with Standard...

Page 7: ...7 Clogged Filter Switch Condensate Overflow Switch and Discharge Air Sensing Tube1 2 Digit 26 Not Used Digit 27 Hardware Enhancements 0 No Enhancements 1 Stainless Steel Drain Pan Digit 28 Short Circ...

Page 8: ...orage Take precautions to prevent condensate from forming inside the unit s electrical compartments and motors if The unit is stored before it is installed or The unit is set on the roof curb and temp...

Page 9: ...ilter switch has been closed for at least 2 minutes The system will continue to operate regardless of the status of the filter switch For further details refer to Installation Instructions ACC SVN238...

Page 10: ...ated Comfort building management system Integrated Comfort System BAYSENS074 This sensor features single setpoint capability and timed override with override cancellation It is used with a Trane Integ...

Page 11: ...re to follow these instructions will prevent the smoke detectors from performing its design function Airflow through the unit is affected by the amount of dirt and debris accumulated on the indoor coi...

Page 12: ...g Precautionary Measures Avoid breathing fiberglass dust Use a NIOSH approved dust mist respirator Avoid contact with the skin or eyes Wear long sleeved loose fitting clothing gloves and eye protectio...

Page 13: ...MBh EVAPORATOR SECTION ACCESS PANEL CONDENSATE DRAIN INDOOR TOP PANEL CONTROL BOX SECTION ACCESS PANEL UNIT CONTROL WIRE 2 50 MM DIA HOLE UNIT POWER WIRE 2 50 MM DIA HOLE OUTDOOR TOP PANEL SERVICE GA...

Page 14: ...8MM 8 3 8 212MM 48 1223MM 6 5 8 167 MM 55 0577 1398 467 55 2977 1404 563 8 205MM 55 3 8 1404MM THROUGH THE BASE ELECTRICAL THROUGH THE BASE GAS D_J MODELS ONLY Figure 4 12 5 to 25 tons high efficiency...

Page 15: ...22 7 Figure 6 12 5 to 25 tons high efficiency unit clearance and roof opening UNIT OUTLINE CLEARANCE 36 914 MM CLEARANCE 48 1219 MM FRONT OF UNIT CLEARANCE 60 1524 MM CLEARANCE 68 1727 MM 76 1 2 1943...

Page 16: ...swing diameter for hinged door s option 32 809MM 30 754MM 36 907MM Clearances Figure 9 p 17 illustrates the minimum operating and service clearances for either a single or multiple unit installation T...

Page 17: ...cabinet 5 8 for D cabinet 1727 MM Weights Table 1 Model weights corner weights lbs and center of gravity dimensions in Tons Unit Model No Model Weights a Corner Weights b Center of Gravity in Shippin...

Page 18: ...w Leak Economizer Horizontal 180 180 Manual Outside Air Damper 15 15 Motorized Outside Air Damper 82 82 Oversized Motor 30 Powered Convenience Outlet 50 50 Powered Exhaust 110 110 Reheat Coil 100 100...

Page 19: ...ht of the unit Lifting cables chains or slings may not be of the same length Adjust as necessary for even unit lift WARNING Improper Unit Lift Failure to properly lift unit in a LEVEL position could r...

Page 20: ...ous injury and property damage Confirm with a structural engineer that the roof structure is strong enough to support the combined weight of the roofcurb the unit and any accessories For rooftop appli...

Page 21: ...roof deck for the ductwork penetrations Do not cut out the entire roof deck within the curb perimeter If a Curb Accessory Kit is not used The ductwork can be attached directly to the factory provided...

Page 22: ...all the roof curb if applicable Refer to the latest edition of the curb installers guide that ships with each curb kit Fabricate and install ductwork secure ductwork to curb Install pitch pocket for p...

Page 23: ...ust be removed to allow the cable to extend to the horizontal mounting location Main Electrical Power Requirements WARNING Hazardous Voltage w Capacitors Failure to disconnect power and discharge capa...

Page 24: ...lock Figure 18 Condensate trap installation 38 1 Note Minimum if unit static is higher trap must be taller to drain appropriately Filter Installation The quantity of filters is determined by unit siz...

Page 25: ...ns should be terminated in the control box at main panel power terminal block HTB1 Provide proper grounding for the unit in accordance with local and national codes Notes Black gasket is shipped from...

Page 26: ...for the electrical access locations provided on the unit and Table 4 p 28 for AC conductor sizing guidelines and 1 Use copper conductors unless otherwise specified 2 Ensure that the AC control wiring...

Page 27: ...PKGP SVX011A EN 27 Figure 20 Low voltage wiring C cabinet Figure 21 Low voltage wiring D cabinet Installation...

Page 28: ...on the unit Table 5 p 28 lists the conductor sizing guidelines that must be followed when interconnecting the DC binary output devices and the system components utilizing a DC analog input output sig...

Page 29: ...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 30: ...56 5 15 0 74 65 10 12 2 63 80 15 9 4 54 66 20 6 7 46 94 25 3 8 40 40 30 1 1 34 85 35 1 7 30 18 40 4 4 26 22 Table 6 Temperature vs resistance continued Temperature Nominal Resistance kOhms Degrees F...

Page 31: ...e Three phase electrical power to the unit must meet stringent requirements for the unit to operate properly Measure each leg phase to phase of the power supply Each reading must fall within the utili...

Page 32: ...e Heaters Each compressor can be equipped with a crankcase heater On some units the crankcase heater comes standard The proper operation of the crankcase heater is important to maintain an elevated co...

Page 33: ...ler will remain in any given state once initiated For detailed information on how each Service Test State is interpreted based on the equipment s configuration see ACC APG002 EN Symbio 700 for Precede...

Page 34: ...ectromechanical test mode connections if applicable Hot Gas Reheat WARNING Live Electrical Components Failure to follow all electrical safety precautions when exposed to live electrical components cou...

Page 35: ...e following tasks you MUST Follow all instructions in the unit s Installation Operation and Maintenance manual including warnings cautions and notices Perform all required tasks in any applicable Serv...

Page 36: ...dures refer to the appropriate section s of the smoke detector Installation and Maintenance Instructions provided with the literature package for this unit Condensate Overflow Switch During maintenanc...

Page 37: ...move the access panel from the roof located next to the rear condenser fan 2 Protect all electrical devices such as motors and controllers from any over spray 3 Straighten any bent coil fins with a fi...

Page 38: ...oil has been added in the factory for all Hot Gas Reheat units If major components MCHE coil valve assembly etc are replaced or serviced the following steps must be taken 1 Measure the amount of oil...

Page 39: ...mple maintenance log Date Current Ambient Temp F C Refrigerant Circuit 1 Refrigerant Circuit 2 Compr Oil Level Suct Press Psig kPa Disch Press Psig kPa Liquid Press Psig kPa Super heat F C Sub cool F...

Page 40: ...40 PKGP SVX011A EN Troubleshooting See ACC APG002 EN Application Guide Symbio 700 Controller with Precedent Packaged Rooftop Air Conditioners...

Page 41: ...l 12134343 SCHEMATIC SHEET 2 POWER SINGLE INDOOR FAN COOLING ONLY ELECTRIC HEAT HIGH SCCR Main Unit Symbio 700 230V 12134344 SCHEMATIC SHEET 2 POWER SINGLE INDOOR FAN 2 STAGE GAS HEAT 230V HIGH SCCR M...

Page 42: ...ATIC SHEET 1 ELECTRIC HEAT 27 36 KW 240V Electric Heat Symbio 700 230V 12134303 SCHEMATIC SHEET 1 ELECTRIC HEAT 54 KW 240V Electric Heat Symbio 700 460V 575V 12134304 SCHEMATIC SHEET 1 ELECTRIC HEAT 9...

Page 43: ...AIR SERVICE VALVE SUCTION LINE LIQUID LINE FITER DRIER TXV TXV BULB EQUALIZING LINE SERVICE VALVE AIR OUTDOOR COIL LOW PRESSURE CONTROL DISCHARGE LINE COMPRESSOR 1A S D COMPRESSOR 1B DISCHARGE LINE TH...

Page 44: ...IR SERVICE VALVE N O I T C U S LINE LIQUID LINE FILTER DRIER TXV TXV BULB EQUALIZING LINE SERVICE VALVE AIR OUTDOOR COIL LOW PRESSURE CONTROL COMPRESSOR 1A S D COMPRESSOR 1B DISCHARGE LINE THERMOSTAT...

Page 45: ...SUCTION LINE LIQUID LINE FITER DRIER TXV 1 EQUALIZING LINE SERVICE VALVE OUTDOOR COIL LOW PRESSURE CONTROL DISCHARGE LINE DISCHARGE LINE THERMOSTAT HIGH PRESSURE CONTROL AIR AIR INDOOR COIL 1 INDOOR C...

Page 46: ...1 EQUALIZING LINE SERVICE VALVE OUTDOOR COIL LOW PRESSURE CONTROL DISCHARGE LINE THERMOSTAT HIGH PRESSURE CONTROL AIR AIR INDOOR COIL 1 INDOOR COIL 2 TXV BULB 2 TXV BULB 1 TXV 2 EQUALIZING LINE DISCHA...

Page 47: ...ucts have been paid for and then liability shall be limited solely to the purchase price of the equipment under warranty shown to be defective THE WARRANTY AND LIABILITY SET FORTH HEREIN ARE IN LIEU O...

Page 48: ...ormation 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 speci...

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