American Standard TTA240F A Series Owner's manual

Installation Operation
Maintenance
October 2006 TTA-SVX03A-EN
Model Number
TTA240F***A (60Hz)
TTA200FD**A (50Hz)
Split System Cooling
Condensers
20 Tons

Preface and Warnings and Cautions
© 2006 American Standard Inc. All rights reserved TTA-SVX03A-EN
Literature Change History
TTA-SVX03A-EN (June 2006)
Release of 20T, R410A product.
Note: One copy of this document
ships inside the control panel
of each unit and is customer
property. It must be retained
by the unit’s maintenance
personnel.
This booklet describes proper
installation, operation, and
maintenance procedures for air
cooled systems. By carefully
reviewing the information within this
manual and following the
instructions, the risk of improper
operation and/or component damage
will be minimized.
It is important that periodic
maintenance be performed to help
assure trouble free operation. A
maintenance schedule is provided at
the end of this manual. Should
equipment failure occur, contact a
qualified service organization with
qualified, experienced HVAC
technicians to properly diagnose and
repair this equipment.
Note: All phases of this installation
must comply with the
NATIONAL, STATE & LOCAL
CODES. In addition to local
codes, the installation must
conform with National
Electric Code -ANSI/NFPA
NO. 70 LATEST REVISION.
Note: Do Not release refrigerant
to the atmosphere! If
adding or removing
refrigerant is required, the
service technician must
comply with all federal,
state, and local laws.
Warnings and Cautions
Notice that warnings and cautions
appear at appropriate intervals
throughout this manual. Warnings
are provided to alert installing
contractors to potential hazards that
could result in personal injury or
death, while cautions are designed to
alert personnel to conditions that
could result in equipment damage.
Your personal safety and the proper
operation of this machine depend
upon the strict observance of these
precautions.
NOTICE:
Warnings and Cautions appear at
appropriate sections throughout this
manual. Read these carefully.
WARNING
Indicates a potentially hazardous
situation which, if not avoided, could
result in death or serious injury.
CAUTION
Indicates a potentially hazardous
situations which, if not avoided, may
result in minor or moderate injury. It
may also be used to alert against
unsafe practices.
CAUTION
Indicates a situation that may result
in equipment or property-damage-
only accidents.

Contents
TTA-SVX03A-EN 3
Model Number Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Unit Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Inspection Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Initial Leak Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Lifting Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Unit Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Refrigerant Piping Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Field Wiring- Electromechanical Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Refrigerant Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Pre-Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
System Test Modes ReliaTel™ Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Troubleshooting ReliaTel Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
System Status Checkout Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Simultaneous Heat and Cool Failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Resetting Cooling and Heating Lockouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Temperature Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Programmable & Digital Zone Sensor Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Maintenance Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4TTA-SVX03A-EN
Model Number Description
All products are identified by a
multiple-character model number
that precisely identifies a particular
type of unit. An explanation of the
alphanumeric identification code is
provided. Its use will enable the
owner/operator, installing
contractors, and service engineers to
define the operation, specific
components, and other options for
any specific unit.
When ordering replacement parts or
requesting service, be sure to refer
to the specific model number, serial
number, and DL number (if
applicable) stamped on the unit
nameplate.
DIGITS 1-3: PRODUCT TYPE
TTA = Split System Cooling
DIGITS 4-6: NOMINAL GROSS
COOLING CAPACITY (MBh)
200 = 200 MBh
240 = 240 MBh
DIGIT 7: REFRIGERATION
CIRCUIT
A = 1 Refrigerant Circuit R22
B = 2 Refrigerant Circuit R22
C = Manifold Scroll Compressors
R22
D = 1 Refrigerant Circuit R410A
E = 2 Refrigerant Circuit R410A
F = Manifold Scroll Compressors
R410A
DIGITS 8: ELECTRICAL
CHARACTERISTICS
3 = 208-230/60/3
4 = 460/60/3
W = 575/60/3
D = 380-415/50/3
K = 380/60/3
DIGITS 9, 10: FACTORY
INSTALLED OPTIONS
00 = Packed Stock
0S = Black Epoxy Coated Coil
0R = ReliaTel™, no LCI Board
0T = ReliaTel™, no LCI Board with
Black Epoxy Coated Coil
0U = ReliaTel™, with LCI Board
0W = ReliaTel™, with LCI Board and
Black Epoxy Coated Coil
DIGITS 11: MINOR DESIGN
SEQUENCE
CURRENT
DIGITS 12: Service Digit
A = First
Model Number Description
TTA 090 A 3 00 B A
410

TTA-SVX03A-EN 5
Installation procedures should be
performed in the sequence that they
appear in this manual. Do not
destroy or remove the manual from
the unit.
The manual should remain weather-
protected with the unit until all
installation procedures are
complete.
Note: It is not the intention of this
manual to cover all possible
variations in systems that
may occur or to provide
comprehensive information
concerning every possible
contingency that may be
encountered during an
installation. If additional
information is required or if
specific problems arise that
are not fully discussed in this
manual, contact your local
sales office.
Note: "Warnings" and "Cautions"
appear at appropriate places
in this manual. Your personal
safety and the proper
operation of this machine
require that you follow them
carefully. The Company
assumes no liability for
installations or servicing
performed by unqualified
personnel.
Installation Checklist
An "Installation Checklist" is
provided at the end of the
installation section of this manual.
Use the checklist to verify that all
necessary installation procedures
have been completed. Do not use the
checklist as a substitute for reading
the information contained in the
manual. Read the entire manual
before beginning installation
procedures.
Unit Inspection
Inspect material carefully for any
shipping damage. If damaged, it
must be reported to, and claims
made against the transportation
company. Compare the information
that appears on the unit nameplate
with ordering and submittal data to
insure the proper unit was shipped.
Available power supply must be
compatible with electrical
characteristics specified on
component nameplates. Replace
damaged parts with authorized parts
only.
Inspection Checklist
To protect against loss due to
damage incurred in transit, complete
the following checklist upon receipt
of the unit.
[ ] Inspect individual pieces of the
shipment before accepting the unit.
Check for obvious damage to the
unit or packing material.
[ ] Inspect the unit for concealed
damage before it is stored and as
soon as possible after delivery.
Concealed damage must be reported
within 15 days. If concealed damage
is discovered, stop unpacking the
shipment. Do not remove damaged
material from the receiving location.
Take photos of the damage if
possible. The owner must provide
reasonable evidence that the
damage did not occur after delivery.
[ ] Notify the carrier’s terminal of
damage immediately by phone and
by mail. Request an immediate joint
inspection of the damage by the
carrier and the consignee.
[ ] Notify the sales representative
and arrange for repair. Do not repair
the unit until the damage is
inspected by the carrier’s
representative.
Initial Leak Test
All TTA units are shipped with a
holding charge of nitrogen in each
circuit. Remove the compressor
access panel(s) shown in Figure 2.
Locate the liquid line or suction line
service valve for each circuit. Install
gauges to determine if the circuits
are still pressurized. If not, the
charge has escaped. Repair as
required to obtain a leak-free circuit.
Lifting Recommendations
Before preparing the unit for lifting,
estimate the approximate center of
gravity for lifting safety. Because of
placement of internal components,
the unit weight may be unevenly
distributed. Approximate unit
weights are given in Table 1.
Table 1. Total Unit and Corner Weight
WARNING
Improper Unit Lift!
On-sight lifting equipment must be
capable of lifting the unit weight
with an adequate safety factor. The
use of under-capacity lifting devices
could result in death or serious
injury or possible equipment or
property-only damage.
The crated unit can be moved using
a forklift of suitable capacity. For
lifting the unit, attach lifting straps or
slings securely to the lifting holes at
each corner. Use spreader bars to
protect the unit casing from damage.
Test lift the unit to determine proper
balance and stability.
CAUTION
Equipment Damage!
Use spreader bars to prevent lifting
straps from damaging the unit.
Install bars between lifting straps.
This will prevent the straps from
crushing the unit cabinet or
damaging the unit finish.
APPROXIMATE
CORNER WEIGHT
(MASS) TOTAL
UNIT
WEIGHTMODELNO.#1#2#3#4
TTA240F---A 292
lbs
181
lbs
222
lbs
140
lbs
835 lbs
TTA200FD--
A
132
kg
82
kg
101
kg
64
kg
379 kg
General Information