Trane PCC-1L-3210-4-7.5 User manual

Trane Rental Services
Low-temp Air-handling Unit
Installation Instructions
July 2020 CHS-SVN011C-EN
SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of
heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training.
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.

© 2020 Trane CHS-SVN011C-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.
CAUTIONsIndicates 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 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,
ALWAYSrefer totheappropriateSDSandOSHA/GHS
(Global Harmonized System of Classification and
Labeling 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.

WARNING
Follow EHS Policies!
Failure to follow instructions below could result in
death or serious injury.
• All Trane personnel must follow the company’s
Environmental, Health and Safety (EHS) policies
when performing work such as hot work, electrical,
fall protection, lockout/tagout, refrigerant handling,
etc. Where local regulations are more stringent than
these policies, those regulations supersede these
policies.
• Non-Trane personnel should always follow local
regulations.
WARNING
Hazardous Service Procedures!
The maintenance and troubleshooting procedures
recommended in this manual could result in exposure
to electrical, mechanical or other potential safety
hazards. Always refer to the safety warnings provided
throughout this manual concerning these procedures.
Unless specified otherwise, disconnect all electrical
power including remote disconnect and discharge all
energy storing devices such as capacitors before
servicing. Follow proper lockout/tagout procedures to
ensure the power can not be inadvertently energized.
When necessary to work with live electrical
components, have a qualified licensed electrician or
other individual who has been trained in handling live
electrical components perform these tasks. Failure to
follow all of the recommended safety warnings
provided, could result in death or serious injury.
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
WARNING
Live Electrical Components!
During installation, testing, servicing and
troubleshooting of this product, it may be necessary to
work with live electrical components. Have a qualified
licensed electrician 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.
WARNING
Improper Unit Lift!
Test lift unit approximately 24 inches to verify proper
center of gravity lift point. To avoid dropping of unit,
reposition lifting point if unit is not level. Failure to
properly lift unit could result in unit dropping and
possibly crushing operator/technician which could
result in death or serious injury and possible equipment
or property-only damage.
WARNING
Rotating Components!
During installation, testing, servicing and
troubleshooting of this product it may be necessary to
work with live and exposed rotating components. Have
a qualified or licensed service individual who has been
properly trained in handling exposed rotating
components, perform these tasks. Failure to follow all
safety precautions could result in rotating components
cutting and slashing technician which could result in
death or serious injury.
WARNING
Rotating Components!
The following procedure involves working with rotating
components. Disconnect all electric power, including
remote disconnects before servicing. Follow proper
lockout/ tagout procedures to ensure the power can not
be inadvertently energized. Secure drive sheaves to
ensure rotor cannot freewheel. Failure to secure drive
sheaves or disconnect power before servicing could
result in rotating components cutting and slashing
technician which could result in death or serious injury.
Introduction
CHS-SVN011C-EN 3
Copyright
This document and the information in it are the property of
Trane, and may not be used or reproduced in whole or in
part without written permission. Trane reserves the right
to revise this publication at any time, and to make changes
to its content without obligation to notify any person of
such revision or change.
Trademarks
All trademarks referenced in this document are the
trademarks of their respective owners.
Revision History
• Included Applications Considerations, General
information and Overall Instructions on proper
Operation Procedures.

Introduction
4CHS-SVN011C-EN
• Included new design sequence low temp air handler
specifications, applications consideration, installation,
and operations procedures.
• Updated for Trane Technologies

Table of Contents
CHS-SVN011C-EN 5
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Model Nomenclature . . . . . . . . . . . . . . . . . . . . 6
Applications Considerations . . . . . . . . . . . . . . 7
Waterside . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Airside . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Water Treatment . . . . . . . . . . . . . . . . . . . . . . 7
Multiple AHU Applications . . . . . . . . . . . . . . 7
General Information . . . . . . . . . . . . . . . . . . . . . 8
Airside Data . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . 8
Waterside Data . . . . . . . . . . . . . . . . . . . . . . . . 8
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Modes of Operation . . . . . . . . . . . . . . . . . . . . . 10
(F0) Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
(F1) Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Installation and Startup Guidelines . . . . . . . 14
Three-Way Valve Operation . . . . . . . . . . . . . 15
(F0) Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
(F1) Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
(F0) Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
(F1) Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Defrost Control Instructions . . . . . . . . . . . . . 20
(F0) Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
(F1) Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

6CHS-SVN011C-EN
Introduction
This installation manual is exclusively for rental units from
Trane Rental Services temporary cooling solutions. This
document includes mechanical and electrical
requirements as well as a detailed description for modes
of operation.
The purpose of this document is to aid in the start-up and
installation of the equipment, troubleshoot guidelines,
and maintenance steps.
Please contact Trane Rental Services (TRS) for availability
of equipment 24 x 7 at [phone], prior to ordering
rental equipment. Equipment is available on a first come,
first-serve basis, but can be reserved with a signed rental
agreement.
Model Nomenclature

CHS-SVN011C-EN 7
Applications Considerations
Waterside
•The low-temp air handling units should only be
used for applications that are well insulated.
•These low-temp air-handling units are specifically
designed for cooler, freezer type applications
where there is a requirement for air temperatures
below 32°F. For that reason in these types of
applications the use of glycol is highly
recommended.
•This equipment is also designed to be placed
indoors; therefore, special steps need to be taken to
run drain lines to their proper building site
drainage.
Airside
•Some version models of these air-handling units
(AHU) are only able to provide constant volume to
the space (F0 units), special steps need to be taken
so that in applications above 32°F the fan does not
exceed a face velocity of 650 FPM to prevent
moisture carryover. As some units do not have VFD
capabilities, airflow modulation can only be
achieved by restricting the airflow. Please contact
Trane Rental Services for suggestions on
accomplishing this task. F1 model AHUs do have
the capability to modulate air since they are
equipped with a VFD and soft starter.
•These unit does not have return air connections.
However, they do have the ability to connect to a
long throw adapter (F0 units) or to (4) 20” duct
connections (F1 units) to direct the supply air to the
place of choosing.
Water Treatment
Dirt, scale, products of corrosion and other foreign
material will adversely affect heat transfer. Therefore, it is
good practice to add strainers upstream the cooling coils
to efficiently help transfer heat.
Multiple AHU Applications
In order to prevent a decrease in airflow supply due to
excessive frozen coils, the unit triggers a timed defrost
cycle. While the cycle is on, fan will be turned off and
cooling will not be provided. In order to continuously meet
building load requirements TRS recommends the use of at
least (1) additional AHU to meet the building’s cooling
load while other unit(s) are in a defrost cycle.

8CHS-SVN011C-EN
General Information
Model Number . . . . . . . . . . . . . . . . . . . . . . . PCC-1L-3210-4-7.5
Ambient Operating Conditions . . . . . . . . . . . . -20°F to 100°F1
Airside Data
Discharge Air Configuration . . . . . . . . . . . . . . . . . . . . Horizontal
Flex Duct Connection Qty & Size . . . .(1) 36 in. round2(F0)
units (4) 20 in. round (F1) units
Nominal Air Flow (cfm) . . . . . . . . . . . . . . . . . . . . . . . . . 12,1003
Discharge Static Pressure
@ Nominal Air Flow . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 in. ESP
Maximum Air Flow (cfm) . . . . . . . . . . . . . . . . . . . . . . . . . 24,500
Discharge Static Pressure
@ Maximum Air Flow . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 in. ESP
Electrical Data
Supply Motor Size . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5 hp/11 A
Heater Circuit . . . . . . . . . . . . . . . . . . . . . . . . . 37,730 W/47.35 A
Supply Motor Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . 1160 rpm
Fused Disconnect/Circuit Breaker . . . . . . . . . . . . . . . . . . . . . Yes
Number of Electrical Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Voltage 460V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-phase
Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Hz
Minimum Circuit Ampacity (MCA) . . . . . . . . . . . . . . . . . .. 61 A
Maximum Over current Protection (MOP) . . . . . . . .. . . . . 80 A
For additional electrical information contact Trane Rental
Services.
Waterside Data
Water Connection Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 in.
Water Connection Type . . . . . . . . . . . . . . . . . . . . . . . . . . Grooved
Drain Pipe Size . . . . . . . . . . . . . . . . . . . . . . . . . 2.0 in. (F0 Units)
3/4 in. (F1 Units)
Drain Pipe Connection Type . . . . . Female Pipe Thread (F0
Units) Garden Hose (F1 Units)
NOTICE
Water Damage!
Connecting all drains to a common line with only one
trap could result in condensate retention and possible
water damage to the air handler or adjoining space.
When more than one module has a drain pain, trap
each module individually.
Table 1. Coil Capacity
Coil Type
Entering/Leaving
Water Temp (°F)
Water Flow
(gpm)
Pressure Drop
(ft of H²O)
Entering/Leaving
Air Temp (°F)
Coil Capacity
(BTUH)
Chilled Water
0/3.4 70 16.17 14/6.8 105,077
0/3.9 90 17.39 16/9.7 158,567
0/3.1 120 27.9 16/9.4 166,583
Selection based on 50% propylene glycol/water solution.
Selection is required for actual AHU performance.
Contact Trane Rental Services for specific selection
information.
Maximum waterside pressure is 150 psi (2.31’ H2O = 1 psi)
1For ambient conditions below 40°F, glycol is recommended.
2With Long Throw Adapter
3Actual airflow is dependent upon external static pressure requirement. Con-
tact Trane Rental Services for specific airflow and static pressure information.
Subject to change at any time without notice or liability.

General Information
CHS-SVN011C-EN 9
Features
F0
•Electric Coil Defrost with timer and Three Way
Actuated valve for coil bypass purposes
•Drain pan electrically heated
F1
•Electric Coil Defrost with timer and Three Way
Actuated valve for coil bypass purposes
•Drain pan electrically heated
•A black powder coated cage with fork pockets
•Electrical control cabinet (NEMA 3R)
•Supply plenum with (4) 20” round duct outlets
•Rack with (12) 20” x 16” x 2” filters
•Daisy Chain Capable
Table 2. Dimensions and Weights
F0 F1
Length 9 ft. 6 in. 8 ft. 6 in.
Width w/o Long Throw Adapter 4 ft. 4 in. 5 ft. 5 in.
Width w/ Long Throw Adapter 6 ft. 0 in. n/a
Height 7 ft. 2 in. 7 ft. 3 in.
Shipping Weight 2,463 lb. 3,280 lb.
Lifting Device: Forklift or Crane
WARNING
Improper Unit Lift!
Test lift unit approximately 24 inches to verify proper
center of gravity lift point. To avoid dropping of unit,
reposition lifting point if unit is not level. Failure to
properly lift unit could result in unit dropping and
possibly crushing operator/technician which could
result in death or serious injury and possible equipment
or property-only damage.

10 CHS-SVN011C-EN
Modes of Operation
(F0) Units
CAUTION
Hazardous Voltage!
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Failure to disconnect power
before servicing could result in death or serious injury.
CAUTION
Live Electrical Components!
During installation, testing, servicing and
troubleshooting of this product, it may be necessary to
work with live electrical components. Have a qualified
licensed electrician 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.
1. “Power” - Power sequence of operation
a. Field power leads are connected to terminals L1-L2-
L3 on the input side of the main circuit breaker.
b. Closing the main disconnect switch powers the unit
fan motor, heater, and control circuits. The green
“Power” light will turn on. This indicates that 115V
power is being provided to the control circuit.
c. Opening the main disconnect removes power from
the unit. The “Power” light turns off.
d. The “on-off” switch must be in “on” position for
refrigeration and defrost modes. The “on-off”
switch will not affect the “power” or “rotation”
modes. The “on-off” switch does not disconnect
power.
2. “Rotation” - Fan rotation and phase loss monitor
sequence of operation
WARNING
Rotating Components!
During installation, testing, servicing and
troubleshooting of this product it may be necessary to
work with live and exposed rotating components. Have
a qualified or licensed service individual who has been
properly trained in handling exposed rotating
components, perform these tasks. Failure to follow all
safety precautions could result in rotating components
cutting and slashing technician which could result in
death or serious injury.
WARNING
Rotating Components!
The following procedure involves working with rotating
components. Disconnect all electric power, including
remote disconnects before servicing. Follow proper
lockout/ tagout procedures to ensure the power can
not be inadvertently energized. Secure drive sheaves to
ensure rotor cannot freewheel. Failure to secure drive
sheaves or disconnect power before servicing could
result in rotating components cutting and slashing
technician which could result in death or serious injury.
a. Field power leads L1-L2-L3 provide power to L1-L2-
L3 on the Phase Monitor.
b. The Phase Monitor checks the incoming power
supply for proper phase and voltage. The unit will
not operate unless all three phases are present, and
in the proper phase.
c. Place unit in operating mode by closing the main
disconnect switch. Observe the “Rotation” light. If
the “Rotation” light is on, the power supply phases
are out of sequence and the fan motor will run
backwards. Close the main disconnect switch and
reverse any two incoming power leads (for
example, wire field lead L1 to terminal L2, and field
lead L2 to terminal L1).
d. If reversing the leads as described before fails to
turn off the “Rotation” light, then there is a loss of
phase or voltage imbalance between legs. Reset the
main circuit breaker.
e. Check the 15 amp Phase Monitor fuses, and replace
as necessary. If the “Rotation” light is still on at
power up, then there is a problem with the field
power supply and must be corrected.
f. If the “Power” light is on, and the “Rotation” light
is off, the unit is powered and the fan rotation is
correct.