Trane Optimus RTHD Installation and operating instructions

Optimus™ Water-Cooled Chillers
Model RTHD
Installation, Operation, and Maintenance
April 2022 RTHD-SVX01K-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.

©2022 Trane RTHD-SVX01K-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.
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.
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.
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 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.

Introduction
RTHD-SVX01K-EN 3
Factory Warranty Information
Compliance with the following is required to preserve the
factory warranty:
All Unit Installations
Startup MUST be performed by Trane, or an authorized
agent of Trane, to VALIDATE this WARRANTY. Contractor
must provide a two-week startup notification to Trane (or
an agent of Trane specifically authorized to perform
startup).
Additional Requirements for Units Requiring
Disassembly
When a new fully assembled chiller is shipped and
received from our Trane manufacturing location, and, for
any reason, it requires disassembly or partial disassembly
— which could include but is not limited to the evaporator,
condenser, control panel, compressor/motor, or any other
components originally attached to the fully assembled
unit
— compliance with the following is required to preserve
the factory warranty:
• Trane, or an agent of Trane specifically authorized to
perform startup and warranty of Trane® products, will
perform or have direct onsite technical supervision of
the disassembly and reassembly work.
• The installing contractor must notify Trane — or an
agent of Trane specifically authorized to perform
startup and warrant of Trane® products — two weeks
in advance of the scheduled disassembly work to
coordinate the disassembly and reassembly work.
• Startup must be performed by Trane or an agent of
Trane specifically authorized to perform startup and
warranty of Trane® products as noted above.
Trane, or an agent of Trane specifically authorized to
perform startup and warranty of Trane® products, will
provide qualified personnel and standard hand tools to
perform the disassembly work at a location specified by
the contractor. The contractor shall provide the rigging
equipment such as chain falls, gantries, cranes, forklifts,
etc. necessary for the disassembly and reassembly work
and the required qualified personnel to operate the
necessary rigging equipment.
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.
Factory Training
Factory training is available through Trane University™ to
help you learn more about the operation and maintenance
of your equipment. To learn about available training
opportunities contact Trane University™.
Online: www.trane.com/traneuniversity
Phone: [phone]
Email: [email protected]
Revision History
• UC800 controller updated to Symbio™ 800.
• Minor error corrections.
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
Refrigerant under High Pressure!
Failure to follow instructions below could result in an
explosion which could result in death or serious injury
or equipment damage.
System contains refrigerant under high pressure.
Recover refrigerant to relieve pressure before opening
the system. See unit nameplate for refrigerant type. Do
not use non-approved refrigerants, refrigerant
substitutes, or refrigerant additives.

4RTHD-SVX01K-EN
Table of Contents
Model Number . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Unit Nameplate . . . . . . . . . . . . . . . . . . . . . . . 6
Compressor Nameplate . . . . . . . . . . . . . . . . 6
Model Number Descriptions . . . . . . . . . . . . . . 7
Unit Model Number . . . . . . . . . . . . . . . . . . . . 7
Compressor Model Number . . . . . . . . . . . . 8
General Information . . . . . . . . . . . . . . . . . . . . . 9
Unit Description . . . . . . . . . . . . . . . . . . . . . . . 9
Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . 15
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Inspection Checklist . . . . . . . . . . . . . . . . . 15
Loose Parts Inventory . . . . . . . . . . . . . . . 15
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Installation Requirements . . . . . . . . . . . . . . 16
Dimensions and Weights . . . . . . . . . . . . . . . . 17
Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . 17
Unit Weights . . . . . . . . . . . . . . . . . . . . . . . . . 17
Service Clearances . . . . . . . . . . . . . . . . . . . . 19
Installation Mechanical . . . . . . . . . . . . . . . . . . 20
Location Requirements . . . . . . . . . . . . . . . . 20
Sound Considerations . . . . . . . . . . . . . . . 20
Foundation . . . . . . . . . . . . . . . . . . . . . . . . 20
Clearances . . . . . . . . . . . . . . . . . . . . . . . . . 20
Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . 20
Water Drainage . . . . . . . . . . . . . . . . . . . . . 20
Access Restrictions . . . . . . . . . . . . . . . . . 20
Rigging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Lifting Procedure . . . . . . . . . . . . . . . . . . . 22
Unit Leveling . . . . . . . . . . . . . . . . . . . . . . . 25
Isolation Pads . . . . . . . . . . . . . . . . . . . . . . 25
Water Piping . . . . . . . . . . . . . . . . . . . . . . . 30
Freeze Protection . . . . . . . . . . . . . . . . . . . . . 37
Installation Electrical . . . . . . . . . . . . . . . . . . . . 39
General Recommendations . . . . . . . . . . . . 39
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . 39
Standard Units with Wye-Delta Starter . 39
Units with AFD Option . . . . . . . . . . . . . . . 40
Installer-Supplied Components . . . . . . . . . 40
Module Connections for
Interconnecting Wiring . . . . . . . . . . . . . . . . .44
AFD Drive (Optional) . . . . . . . . . . . . . . . . . . .47
AFD Drive Installation . . . . . . . . . . . . . . . .47
AFD Drive Programming . . . . . . . . . . . . . .48
Communications Interface . . . . . . . . . . . . . .50
BACnet® Building Automation Control Net-
work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Modbus Automation Control Network . . .50
LonTalk® Building Automation System . .50
Operating Principles . . . . . . . . . . . . . . . . . . . . .51
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Refrigeration Cycle . . . . . . . . . . . . . . . . . . . .51
Refrigeration Circuits . . . . . . . . . . . . . . . . . .51
Compressor and Motor . . . . . . . . . . . . . . . . .51
Evaporator and Condenser . . . . . . . . . . . . .51
Oil Management . . . . . . . . . . . . . . . . . . . . . .52
Unit-Mounted Starter . . . . . . . . . . . . . . . . . .52
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Symbio 800 . . . . . . . . . . . . . . . . . . . . . . . . . . .53
AdaptiView Display . . . . . . . . . . . . . . . . . .53
Tracer®TU . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Pre-Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Start-Up and Shutdown . . . . . . . . . . . . . . . . . .56
Unit Start-Up . . . . . . . . . . . . . . . . . . . . . . . . .56
Temporary Shutdown And Restart . . . . . . .56
Extended Unit Shutdown . . . . . . . . . . . . . . .56
Seasonal Unit Start-Up Procedure . . . . . . .56
Sequence of Operation . . . . . . . . . . . . . . . . .57
Software Operation Overview . . . . . . . . .57
Timelines . . . . . . . . . . . . . . . . . . . . . . . . . .57
Power Up . . . . . . . . . . . . . . . . . . . . . . . . . .58
Power Up to Starting . . . . . . . . . . . . . . . . .59
Stopped to Starting . . . . . . . . . . . . . . . . . .60
Starting Wye-Delta . . . . . . . . . . . . . . . . . . .60
Starting AFD . . . . . . . . . . . . . . . . . . . . . . . .61
Running . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
Satisfied Setpoint . . . . . . . . . . . . . . . . . . . .62
Normal Shutdown to Stopped or Run

Table of Contents
RTHD-SVX01K-EN 5
Inhibit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Immediate Shutdown to Stopped or Run
Inhibit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Momentary Power Loss . . . . . . . . . . . . . . 65
Ice Making (Running to Ice Making to
Running) . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Ice Making (Auto to Ice Making to Ice Making
Complete) . . . . . . . . . . . . . . . . . . . . . . . . . 66
No Load Start . . . . . . . . . . . . . . . . . . . . . . 66
Limit Conditions . . . . . . . . . . . . . . . . . . . . . . 67
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Recommended Maintenance . . . . . . . . . . . 68
Weekly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Monthly . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Annual . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Scheduling Other Maintenance . . . . . . . 68
Refrigerant and Oil Charge Management 68
Maintenance Procedures . . . . . . . . . . . . . . 69
Cleaning the Condenser . . . . . . . . . . . . . 69
Cleaning the Evaporator . . . . . . . . . . . . . 70
Oil Sump Level Check . . . . . . . . . . . . . . . 71
Optional AFD
Periodic Maintenance and Inspection . . 72
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Starter Diagnostics . . . . . . . . . . . . . . . . . . . 74
Local Communication Drive Diagnostics . 75
Main Processor Diagnostics . . . . . . . . . . . . 76
Communication Diagnostics . . . . . . . . . . . 82
Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Log and Check Sheets . . . . . . . . . . . . . . . . . . . 87

6RTHD-SVX01K-EN
Model Number
Nameplates
The Optimus™ unit nameplates are applied to the exterior
of the Control Panel. A compressor nameplate is located
on the compressor. When the unit arrives, compare all
nameplate data with ordering, submittal, and shipping
information.
Unit Nameplate
See Figure 1 for a typical unit nameplate. The unit
nameplate provides the following information:
• Unit model and size description.
• Unit serial number.
• Identifies unit electrical requirements.
• Lists correct operating charges of R-134a and
refrigerant oil.
• Lists unit test pressures.
• Identifies installation, operation and maintenance and
service data literature.
• Lists drawing numbers for unit wiring diagrams.
Model Number Coding System
The model numbers for the unit and the compressor are
composed of numbers and letters that represent features
of the equipment. Shown in the following table is a sample
of typical unit model number and the coding system for
each.
Each position, or group of positions, in the model number
is used to represent a feature. For example, in the first
table, position 08 of the unit model number, Unit Voltage,
contains the letter “F”. An F in this position means that the
unit voltage is 460/60/3.
Unit Model Number. An example of a typical unit
model number (M/N) is:
RTHD UB1F XG0U AB1A 2LAL B1A2 LALA VXQX EXAA
AXY1 76DC XT52 XXXX XXH
Model number digits are selected and assigned in
accordance with the definitions as listed in “Unit Model
Number,” p. 7.
Compressor Nameplate
The compressor nameplate provides the following
information:
• Compressor model number. See “Compressor Model
Number,” p. 8.
• Compressor electrical characteristics.
• Utilization range.
• Recommended refrigerant.
Figure 1. Typical unit nameplate

RTHD-SVX01K-EN 7
Model Number Descriptions
Unit Model Number
Digits 1,2,3,4 – Chiller Model
RTHD= Water-Cooled Optimus™ Chiller
Digit 5 – Manufacturing
Location
U = Water Chiller Business Unit,
Pueblo, CO USA
Digits 6, 7 – Compressor Frame
B1 = B1 Compressor
B2 = B2 Compressor
C1 = C1 Compressor
C2 = C2 Compressor
D1 = D1 Compressor
D2 = D2 Compressor
D3 = D3 Compressor (50 Hz only)
E3 = E3 Compressor (50 Hz only)
Digits 8 – Unit Power Supply
A = 200V/60Hz/3Ph power
C = 230V/60Hz/3Ph power
D = 380V/60Hz/3Ph power
F = 460V/60Hz/3Ph power
H = 575V/60Hz/3Ph power
R = 380V/50Hz/3Ph power
T = 400V/50Hz/3Ph power
U = 415V/50Hz/3Ph power
Digit 9 – Specials
X = No Specials
Historical information:
C = Specials denoted elsewhere
S = Specials not denoted elsewhere
Digit 10, 11 – Design Sequence
** = Factory assigned
Digit 12 – Agency Listing
X = No Agency Listing
U = UL Listed to US and Canadian
Safety Standard
A = IBC Seismically Rated
B = UL/Canadian and IBC
C = OSHPD Seismically Rated
D = UL/Canadian and OSHPD
Historical information:
3 = CCC - Chinese Compulsory Code
Note: Digit 12 selections A, B, C & D are
special order only.
Digit 13 – Pressure Vessel Code
A = ASME Pressure Vessel Code
C = Canadian Code
D = Australian Code
L = Chinese Code-Imported Pressure
Vessel
Historical information:
S=Special
Digits 14,15 – Evaporator
B1 = B1 Evaporator
B2 = B2 Evaporator
C1 = C1 Evaporator
C2 = C2 Evaporator
D1 = D1 Evaporator
D2 = D2 Evaporator
D3 = D3 Evaporator
D4 = D4 Evaporator
D5 = D5 Evaporator
D6 = D6 Evaporator
E1 = E1 Evaporator
F1 = F1 Evaporator
F2 = F2 Evaporator
G1 = G1 Evaporator
G2 = G2 Evaporator
G3 = G3 Evaporator
Digit 16 – Evaporator Tube Type
A = Enhanced fin copper (all fluids)
W = Enhanced fin copper (water only)
Digit 17 – Evaporator Water Pass
Configuration
2=2Pass
3=3Pass
4=4Pass
Digit 18 – Evaporator Water
Connection
L = Left Hand
R=RightHand
Digit 19 – Evaporator
Connection Type
A = Standard Grooved Pipe
Historical information:
S=Special
Digit 20 – Evaporator Water
Side Pressure
L = 150 psi (10.5 bar)
H = 300 psi (21 bar)
Digit 21, 22 – Condenser
B1 = B1 Condenser
B2 = B2 Condenser
D1 = D1 Condenser
D2 = D2 Condenser
E1 = E1 Condenser
E2 = E2 Condenser
E3 = E3 Condenser
E4 = E4 Condenser
E5 = E5 Condenser
F1 = F1 Condenser
F2 = F2 Condenser
F3 = F3 Condenser
G1 = G1 Condenser
G2 = G2 Condenser
G3 = G3 Condenser
Digit 23 – Condenser Tube Type
A = Enhanced Fin Copper - 0.028 in
B = Smooth Bore Copper
C = Smooth Bore CuNi
D = Enhanced Fin Copper - 0.025 in
Digit 24 – Condenser Water
Passes
2=2Pass
Digit 25 – Condenser Water
Connection
L = Left Hand
R=RightHand
Digit 26 – Condenser
Connection Type
A = Standard Grooved Pipe
C=Marine
S=Special
Digit 27 – Condenser Waterside
Pressure
L = 150 psi (10.5 bar)
H = 300 psi (21 bar)
Digit 28 – Condenser Leaving
Water Temperature
A= Standard
Digit 29 – Refrigerant Isolation
Valves
X = No Refrigerant Isolation Valves
V = With Refrigerant Isolation Valves
Digit 30 – Oil Cooler
X = Without Oil Cooler
C = With Oil Cooler
Digit 31 – Thermal Insulation
X = No Insulation
Q = Factory Installed Insulation
Digit 32 – Acoustic Insulation
X = No Insulation
Historical information:
A = Standard Attenuator
Digit 33 – Label and Literature
Language
C=Spanish
E = English
F=French
Digit 34 – Safety Devices
X= Standard
Digit 35 – Factory Charge
A = Refrigerant Charge (R-134a)
B = Nitrogen Charge (R-134a Field
Supplied)
C = Refrigerant Charge (R-513A)
D = Nitrogen Charge (R-513A Field
Supplied)
Digit 36 – Shipping Package
A = No Skid (Standard)
B=ShrinkWrap
C=Skid
D = Skid + Shrink Wrap
Historical information:
J=Special

Model Number Descriptions
8RTHD-SVX01K-EN
Digit 37 – Flow Switch
X= NoFlowSwitch
A = Evaporator (NEMA 1)
B = Evaporator and Condenser
(NEMA 1)
C = Evaporator (NEMA 4)
D = Evaporator and Condenser
(NEMA 4)
Digit 38 – Factory Test
X= StandardTest
C = Witness Test
D = Performance Test
Digit 39 – Starter Type
Y = Wye-Delta Closed Transition
Starter
V=PremiumAFD
Historical information:
A = Solid State Starter
Digits 40,41,42 — Design RLA
(for starter)
*** = Selection Assigned
Digit 43 – Power Line
Connection Type
A = Terminal Block
B = Mechanical Disconnect Switch
D = Circuit Breaker
F = High Interrupt Circuit Breaker
Historical information:
H = Ground Fault Circuit Breaker
J = Ground Fault High Interrupt
Circuit Breaker
Digit 44 – Max RLA (Starter)
C = 277 max RLA (Fixed Speed)
E = 364 max RLA (Fixed Speed)
G = 126 max RLA (Drive and Panel)
H = 150 max RLA (Drive and Panel)
J = 185 max RLA (Drive and Panel)
K = 234 max RLA (Drive and Panel)
L = 279 max RLA (Drive and Panel)
M = 316 max RLA (Drive and Panel)
N = 366 max RLA (Drive and Panel)
Q = 397 max RLA (Fixed Speed)
R = 476 max RLA (Fixed Speed)
T = 598 max RLA (Fixed Speed)
U = 779 max RLA (Fixed Speed)
V = 197 max RLA (Drive and Panel)
W = 241 max RLA (Drive and Panel)
X = 292 max RLA (Drive and Panel)
Y = 367 max RLA (Drive and Panel)
Z = 446 max RLA (Drive and Panel)
1 = 549 max RLA (Drive and Panel)
2 = 176 max RLA (Drive and Panel)
3 = 223 max RLA (Drive and Panel)
4 = 280 max RLA (Drive and Panel)
5 = 335 max RLA (Drive and Panel)
6 = 411 max RLA (Drive and Panel)
7 = 455 max RLA (Drive and Panel)
Historical information - Enclosure Type:
F = NEMA 1 - MRLA207
G = NEMA 1 - MRLA277
H = NEMA 1 - MRLA300
J = NEMA 1 - MRLA364
K = NEMA 1 - MRLA397
L = NEMA 1 - MRLA476
M = NEMA 1 - MRLA500
N = NEMA 1 - MRLA598
P = NEMA 1 - MRLA779
Digit 45 – Under/Over Voltage
Protection
X= None
U = With Under/Over Voltage
Protection
Digit 46 – Operator Interface
T = Tracer AdaptiView™ TD7 Display
Historical information:
A = DynaView™ - English
B = DynaView - French
C = DynaView - Italian
D = DynaView - Spanish
E = DynaView - German
F = DynaView - Dutch
G = DynaView - Chinese
(traditional)
H = DynaView - Chinese (simple)
J = DynaView - Japanese
K = DynaView - Portugese (Brazil)
L = DynaView - Korean
M = DynaView - Thai
Digit 47 – Digital
Communication Interface
X= None
5 = LonTalk®Interface
7 = BACnet®
8 = Modbus™ Interface
Historical information:
4=Tracer
®Comm 4 Interface
6 = BACnet®for CH530 Controls
Digit 48 – External Water &
Demand Limit Setpoint
X= None
2 = 2–10 Vdc input
4 = 4–20 mA input
Digit 49 – External Base Loading
X= None
2 = 2–10 Vdc input
4 = 4–20 mA input
Digit 50 – Ice Building
X= None
A = Ice Building with Relay
B = Ice Building without Relay
Digit 51 – Programmable Relays
X= None
R = With Programmable Relays
Digit 52 – Chilled Water Reset
X = Chilled Water Reset -
Return Water
T = Chilled Water Reset -
Outdoor Air Temperature
Digit 53 – Control Outputs
X= None
D = Chiller Differential Pressure &
Percent RLA
P = Condenser Pressure (% HPC) &
Percent RLA
V = Condenser Regulating Valve
Control & Percent RLA
Digits 54 – Refrigerant Monitor
Input
X= None
A = 100 ppm / 4-20 mA
B = 1000 ppm / 4-20 mA
C = 100 ppm / 2-10 Vdc
D = 1000 ppm / 2-10 Vdc
Digit 55 – Condenser Leaving
Hot Water Temp Control
X= None
H = Hot Water Temp Control
Digits 56,57,58 — AFD Output
Amps
000 = Not applicable (wye-delta starter)
*** = Selection Assigned
Compressor Model
Number
Digits 1,2,3,4— Compressor
Model
CHHC= Positive displacement,
helical rotary (twin screw)
hermetic compressor
Digit 5— Design Control
* = Factory Assigned
Digit 6— Frame Size
B=BFrame
C=CFrame
D = D Frame
E = E Frame
Digit 7— Capacity
1 = Smaller capacity (minor)
2 = Larger capacity (major)
3 = Special 50 Hz
Digit 8 — Motor Voltage
A = 200V/60Hz/3Ph
C = 230V/60Hz/3Ph
D = 380V/60Hz/3Ph
F = 400/460V- 50/60Hz - 3Ph
used for 380V/50Hz/3Ph
H = 575V/60Hz/3Ph
M = 690V/50Hz/3Ph
B = 525V/50Hz/3Ph
G = 500V/50Hz/3Ph
S = Special voltage
Digit 9— Design Specials
0 = No specials
C = All specials denoted by digits
elsewhere
S = Uncategorized special not
denoted by other digits
Digits 10,11— Design
Sequence
** = Factory assigned

RTHD-SVX01K-EN 9
General Information
Unit Description
The RTHD units are single compressor, helical-rotary type,
water-cooled liquid chillers designed for installation
indoors. Each unit is a completely assembled, hermetic
package that is factory-piped, wired, leak-tested,
dehydrated, charged (optional), and tested for proper
control operation before shipment.
Figure 2 through Figure 4 show typical Optimus™ units
and their components. Water inlet and outlet openings are
covered before shipment. The oil tank is factory charged
with the proper amount of refrigeration oil. The unit can be
factory charged with refrigerant.
Figure 2. Component location — Optimus™ wye-delta starter (front view)
Figure 3. Component location — Optimus™ with AFD (front view)(a)
(a) Component locations shown in Figure 2 are the same for units with optional AFD.
TD7 Interface
Liquid Level
Sensor
Gas Pump Evaporator
Water Outlet
Condenser
Water Outlet
Condenser
Water Inlet
Control Panel
Evaporator
Oil Separator
Relief Valves
Oil Sump
AFD

General Information
10 RTHD-SVX01K-EN
Figure 4. Component location — Optimus (back view)(a)
(a) Optional AFD is not shown. See Figure 3, p. 9 for location of optional AFD.
Oil Separators
EXVs
Relief Valves
Service Valves
(With Refrigerant Isolation
Valve Option Only)
Oil Sump
(The oil distribution system is located between
the condenser and the evaporator.)
Condenser
Evaporator
Water Inlet
Unit Nameplate
(On side of starter/control panel)
Compressor
Discharge Line
Oil Filter (Cold)
Hot Oil Filter is
hidden from view.

General Information
RTHD-SVX01K-EN 11
Table 1. General data
Description Units Unit Configuration(a)
B1B1B1 B1C1D1 B2B2B2 B2C2D2 C1D5E4 C1D6E5 C1E1F1 C2D3E3
GENERAL
RefrigerantType R-134a or R-513A
Refrigerant
Charge lb 410 490 410 490 490 490 525 490
kg 186 222 186 222 222 222 238 222
Wye-deltastarter
with R-134a(b)
Oil Type OIL48
Oil Charge (c) gal 4.5 4.5 4.5 4.5 6 6 10 6
L1717171723233823
Wye-deltastarter
R513A(b)
Oil Type OIL315
Oil Charge(c) gal 4.5 4.5 4.5 4.5 6 6 10 6
L1717171723233823
AFD Starter(b)
Oil Type OIL315
Oil Charge gal 7.5 7.5 7.5 7.5 10 10 11 10
L 28.5 28.5 28.5 28.5 38 38 42 38
EVAPORATOR
Water Storage gal4155455852458278
L 155 208 170 220 197 170 310 295
2-pass
Connection size in88888888
mm 200 200 200 200 200 200 200 200
Min Flow -
Water(d) gpm 253 320 288 347 351 293 450 486
l/s1618222221182831
Maximum Flow gpm 1104 1412 1266 1531 1542 1287 1980 2131
l/s708980979781125134
3-pass
Connection size in66668888
mm 150 150 150 150 200 200 200 200
Min Flow -
Water(d) gpm 168 213 192 232 234 196 300 324
l/s1113121515121920
Maximum Flow gpm 736 941 844 1022 1028 860 1320 1417
l/s4659536565548389
4-pass
Connection size in--------
mm--------
Min Flow -
Water(d) gpm--------
l/s--------
Maximum Flow gpm--------
l/s--------
CONDENSER (all are 2-pass)

General Information
12 RTHD-SVX01K-EN
Connection size in66668888
mm 150 150 150 150 200 200 200 200
Water Storage gal2831293432296047
L 106 117 110 129 121 110 226 178
Min Flow -
Water(d) gpm 193 193 212 212 245 206 375 325
l/s1212131315132421
Max Flow gpm 850 850 935 935 1080 910 1650 1420
l/s54545959685710490
(a) Unit configuration digits 1, 2 - compressor code (also shown in unit model number digits 6, 7); digits 3, 4 - evaporator code (unit model number digits
14, 15); digits 5, 6 - condenser code (unit model number digits 21, 22).
(b)See model number digit 35 for refrigerant type, and digit 39 for starter type.
(c) If oil cooler is installed (model number digit 30 = C), add 0.3 gal (1L) to oil charge value given for B compressor family units. Add 1.0 gal (4L) for all
other units.
(d)See unit submittal or Trane Select Assist (TSA) report for design/selected minimum flows.
Table 1. General data (continued)
Description Units Unit Configuration(a)
B1B1B1 B1C1D1 B2B2B2 B2C2D2 C1D5E4 C1D6E5 C1E1F1 C2D3E3
Table 2. General data
Description Units Unit Configuration(a)
C2D4E4 C2F2F3 D1D1E1 D1F1F2 D1G1G1 D1G2G2 D2D2E2 D2F2F3
GENERAL
RefrigerantType R-134a or R-513A
Refrigerant
Charge lb 490 625 475 625 700 700 475 625
kg 222 284 216 284 318 318 216 284
Wye-deltastarter
with R-134a(b)
Oil Type OIL48
Oil Charge(c) gal 6 10 6 10 11 11 6 10
L2338233842422338
Wye-deltastarter
R513A(b)
Oil Type OIL315
Oil Charge(c) gal 6 10 6 10 11 11 6 10
L2338233842422338
AFD Starter(b)
Oil Type OIL315
Oil Charge gal 10 12 9.5 11 13.5 13.5 9.5 11
L3845.5364251513642
EVAPORATOR
Water Storage gal 52 107 69 102 136 144 74 107
L 197 405 261 386 515 545 280 405
2-pass
Connection size in 8 10 8 10 - - 8 10
mm 200 250 200 250 - - 200 250
Min Flow -
Water(d) gpm 351 604 415 563 - - 450 604
l/s 21 38 26 36 - - 28 38
Maximum Flow gpm 1542 2667 1812 2478 - - 1980 2667
l/s 97 168 114 156 - - 125 168

General Information
RTHD-SVX01K-EN 13
3-pass
Connection size in 8 8 8 8 10 10 8 8
mm 200 200 200 200 250 250 200 200
Min Flow -
Water(d) gpm 234 404 275 376 505 550 300 404
l/s1525172435351925
Maximum Flow gpm 1028 1780 1206 1655 2218 2413 1320 1780
l/s 65 112 76 104 140 152 83 112
4-pass
Connection size in - - - - 8 8 - -
mm - - - - 200 200 - -
Min Flow -
Water(d) gpm - - - - 379 411 - -
l/s - - - - 24 26 - -
Maximum Flow gpm - - - - 1666 1807 - -
l/s - - - 105 114 - -
CONDENSER (all are 2-pass)
Connection size in88888888
mm 200 200 200 200 200 200 200 200
Water Storage gal3261445779914761
L 121 231 166 216 299 344 178 231
Min Flow -
Water(d) gpm 245 355 291 355 444 535 316 385
l/s1522182228342024
Max Flow gpm 1080 1700 1280 1560 1960 2360 1390 1700
l/s 68 107 81 98 124 149 88 107
(a) Unit configuration digits 1, 2 - compressor code (also shown in unit model number digits 6, 7); digits 3, 4 - evaporator code (unit model number digits
14, 15); digits 5, 6 - condenser code (unit model number digits 21, 22).
(b)See model number digit 35 for refrigerant type, and digit 39 for starter type.
(c) If oil cooler is installed (model number digit 30 = C), add 0.3 gal (1L) to oil charge value given for B compressor family units. Add 1.0 gal (4L) for all
other units.
(d)See unit submittal or Trane Select Assist (TSA) report for design/selected minimum flows.
Table 2. General data (continued)
Description Units Unit Configuration(a)
C2D4E4 C2F2F3 D1D1E1 D1F1F2 D1G1G1 D1G2G2 D2D2E2 D2F2F3
Table 3. General data
Description Units
Unit Configuration(a)
D2G2G1 D2G3G3 D3D2E2 D3F2F3 D3G2G1 E3D2E2 E3F2F3 E3G2G1 E3G3G3
GENERAL
RefrigerantType R-134a or R-513A R-134a
Refrigerant
Charge lb 700 700 475 625 700 475 625 700 700
kg 318 318 216 284 318 216 284 318 318
Wye-deltastarter
with R-134a(b)
Oil Type OIL48
Oil Charge(c) gal 11 11 6 10 11 6101111
L 42 4223384223384242

General Information
14 RTHD-SVX01K-EN
Wye-deltastarter
R513A(b)
Oil Type OIL315
Oil Charge(c) gal1111-------
L4242-------
AFD Starter(b)
Oil Type OIL315
Oil Charge gal 13.5 13.5 9.5 11 13.5 9.5 11 13.5 13.5
L 51 5136425136425151
EVAPORATOR
Water Storage gal 144 159 74 107 144 74 107 144 159
L 545 602 280 405 545 280 405 545 602
2-pass
Connection size in - - 8 10 - 8 10 - -
mm - - 200 250 - 200 250 - -
Min Flow -
Water(d) gpm - - 450 604 - 450 604 - -
l/s - - 28 38 - 28 38 - -
Maximum Flow gpm - - 1980 2667 - 1980 2667 - -
l/s - - 125 168 - 125 168 - -
3-pass
Connection size in 10 10 8 8 10 8 8 10 10
mm 250 250 200 200 250 200 200 250 250
Min Flow -
Water(d) gpm 550 622 300 404 550 300 404 550 622
l/s 35 3919253519253539
Maximum Flow gpm 2413 2732 1320 1780 2413 1320 1780 2413 2732
l/s 152 172 83 112 152 83 112 152 172
4-pass
Connection size in 88--8--88
mm 200 200 - - 200 - - 200 200
Min Flow -
Water(d) gpm 411 466 - - 411 - - 411 466
l/s 26 29 - - 26 - - 26 29
Maximum Flow gpm 1807 2050 - - 1807 - - 1807 2050
l/s 114 129 - - 114 - - 114 129
CONDENSER (all are 2-pass)
Connection size in 8 8 8 8 8 8 8 8 8
mm 200 200 200 200 200 200 200 200 200
Water Storage gal 79 9747617947617997
L 299 367 178 231 299 178 231 299 367
Min Flow -
Water(d) gpm 444 589 316 385 444 316 385 444 589
l/s 28 3720242820242837
Max Flow gpm 1960 2600 1390 1700 1960 1390 1700 1960 2600
l/s 124 164 88 107 124 88 107 124 164
(a) Unit configuration digits 1, 2 - compressor code (also shown in unit model number digits 6, 7); digits 3, 4 - evaporator code (unit model number digits
14, 15); digits 5, 6 - condenser code (unit model number digits 21, 22).
(b) See model number digit 35 for refrigerant type, and digit 39 for starter type.
(c) If oil cooler is installed (model number digit 30 = C), add 0.3 gal (1L) to oil charge value given for B compressor family units. Add 1.0 gal (4L) for all
other units.
(d)See unit submittal or Trane Select Assist (TSA) report for design/selected minimum flows.
Table 3. General data (continued)
Description Units
Unit Configuration(a)
D2G2G1 D2G3G3 D3D2E2 D3F2F3 D3G2G1 E3D2E2 E3F2F3 E3G2G1 E3G3G3

RTHD-SVX01K-EN 15
Pre-Installation
Inspection
When the unit is delivered, verify that it is the correct unit
and that it is properly equipped.
Inspect all exterior components for visible damage. Report
any apparent damage or material shortage to the carrier
and make a “unit damage” notation on the carrier’s
delivery receipt. Specify the extent and type of damage
found and notify the appropriate Trane Sales Office.
Do not proceed with installation of a damaged unit without
sales office approval.
Inspection Checklist
To protect against loss due to damage incurred in transit,
complete the following checklist upon receipt of the unit.
• Inspect the 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 as soon as
possible after delivery and before it is stored.
Concealed damage must be reported within 10 days
after receipt.
• 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 the damage
immediately, by phone and by mail. Request an
immediate, joint inspection of the damage with the
carrier and the consignee.
• Notify the Trane sales representative and arrange for
repair. Do not repair the unit, however, until damage is
inspected by the transportation representative.
Loose Parts Inventory
Check all items against the shipping list. Water vessel drain
plugs, isolation pads, rigging and electrical diagrams,
service literature and the starter/control panel wire pullbox
(required on some starters) are shipped loose in the
control panel.
Storage
If the chiller is to be stored more than one month prior to
installation, observe the following precautions:
• Do not remove the protective coverings from the
electrical panel.
• Store the chiller in a dry, secure area.
• At least every three months, attach a gauge and
manually check the pressure in the refrigerant circuit.
If the refrigerant pressure is below 71 psig at 70oF (or
46 psig at 50oF), call a qualified service organization
and the appropriate Trane sales office.
Note: Pressure will be approximately 20 psig if shipped
with the optional nitrogen charge.

Pre-Installation
16 RTHD-SVX01K-EN
Installation Requirements
A list of the contractor responsibilities typically associated
with the unit installation process is provided in Table 4.
Table 4. Installation requirements
Requirement Trane Supplied, Trane Installed Trane Supplied, Field Installed Field Supplied, Field Installed
Rigging •Safetychains
• Clevis connectors - Lifting beam
Disassembly/
Reassembly
(as required)(a)
• Trane, or an agent
of Trane specifically authorized to
perform start-up of Trane® products
(contact
your local Trane
office for pricing)
Isolation • Isolation pads • Isolation pads
Electrical
• Circuit breakers or non-fused
disconnects (optional)
• Unit-mounted starter
• Circuit breaker or non-fused disconnect
handle
• Temperature sensor (optional outdoor
air)
• Flow switches (may be field-supplied)
• Condenser water regulating valve
controller (optional: may be field-
supplied)
• Circuit breakers or fusible disconnects
(optional)
•Terminallugs
• Ground connection(s)
• Jumper bars
• BAS wiring (optional)
•IPCwiring
• Control voltage wiring
• High condenser pressure interlock wiring
• Chilled water pump contactor and wiring
• Condenser water pump contactor and
wiring
• Optional relays and wiring
Water piping
• Flow switches (may be field-supplied)
• Condenser water regulating valve
controller
(optional- may be field-supplied)
• Thermometers
• Water flow pressure gauges
• Isolation and balancing valves in water
piping
• Vents and drain valves
• Pressure relief valves
(for water boxes as required)
Pressure Relief • Relief valves Vent line and flexible connector
Insulation • Insulation (optional) Insulation
Optimus™ RTHD
Installation
Completion Check
Sheet and Request
for Trane Service
(RLC-ADF005*-EN,
see “Log and Check
Sheets,” p. 87)
Chiller Start-up
Commissioning(b)
• Trane, or an agent of
Trane specifically authorized to
perform start-up of Trane® products
(a)Trane, or an agent of Trane specifically authorized to perform start-up and warranty of Trane®products, will perform or have direct on-site supervision
of the disassembly and reassembly work.
(b)Start-up must be performed by Trane or an agent of Trane specifically authorized to perform start-up and warranty of Trane®products. Contractor shall
provide Trane (or an agent of Trane specifically authorized to perform start-up) with notice of the scheduled start-up at least two weeks prior to the
scheduled start-up.

RTHD-SVX01K-EN 17
Dimensions and Weights
Unit Dimensions
See unit submittals for specific unit dimensions and water
connection locations.
Unit Weights
Table 5. Weights — standard units (wye-delta starter)
Unit Configuration(a)
Shipping Weight Operating Weight
lbs kg lbs kg
B1B1B1 9,292 4,215 9,867 4,476
B1C1D1 9,837 4,462 10,554 4,787
B2B2B2 9,402 4,265 10,019 4,545
B2C2D2 9,953 4,515 10,653 4,832
C1D5E4 12,973 5,884 13,673 6,202
C1D6E5 12,780 5,797 13,397 6,077
C1E1F1 14,718 6,676 15,818 7,175
C2D3E3 14,002 6,351 15,044 6,824
C2D4E4 12,972 5,884 13,672 6,201
C2F2F3 16,168 7,334 17,560 7,965
D1D1E1 14,443 6,551 15,385 6,987
D1F1F2 16,187 7,342 17,537 7,955
D1G1G1 18,600 8,437 20,500 9,299
D1G2G2 19,107 8,667 21,065 9,555
D2D2E2 14,562 6,605 15,570 7,062
D2F2F3 16,820 7,629 18,220 8,264
D2G2G1 18,700 8,482 20,700 9,389
D2G3G3 19,508 8,849 21,641 9,816
D3D2E2 14,562 6,605 15,570 7,062
D3F2F3 16,820 7,629 18,220 8,264
D3G2G1 18,650 8,460 20,650 9,367
E3D2E2 14,720 6,677 15,728 7,134
E3F2F3 16,956 7,691 18,356 8,326
E3G2G1 18,800 8,528 20,800 9,435
E3G3G3 19,653 8,915 21,786 9,882
Notes:
1. All weights +/- 3%
2. Shipping weights include standard 150 psig water boxes, refrigerant charge and oil charge.
3. Operating weights include refrigerant, oil and water charges.
(a) Unit configuration digits 1, 2 - compressor code (also shown in unit model number digits 6, 7); digits 3, 4 - evaporator code (unit
model number digits 14, 15); digits 5, 6 - condenser code (unit model number digits 21, 22).

Dimensions and Weights
18 RTHD-SVX01K-EN
Table 6. Weights — units with AFD option(a)
Unit
Configuration(b)
Shipping Weight Operating Weight
AFD D1H Frame AFD D2H Frame AFD D1H Frame AFD D2H Frame
lbs kg lbs kg lbs kg lbs kg
B1B1B1 9526 4321 9664 4384 10101 4582 10239 4645
B1C1D1 10071 4568 10209 4631 10787 4893 10925 4956
B2B2B2 9636 4371 9774 4434 10251 4650 10389 4713
B2C2D2 10187 4621 10325 4684 10886 4938 11024 5001
C1D5E4 13206 5990 13344 6053 13904 6307 14043 6370
C1D6E5 13014 5903 13153 5966 13631 6183 13770 6246
C1E1F1 14949 6781 15088 6844 16801 7621 16940 7684
C2D3E3 14235 6457 14374 6520 15278 6930 15417 6993
C2D4E4 13206 5990 13344 6053 13907 6308 14046 6371
C2F2F3 17055 7736 17194 7799 18446 8367 18585 8430
D1D1E1 - - 14815 6720 - - 15756 7147
D1F1F2 - - 16559 7511 - - 17910 8124
D1G1G1 - - 18973 8606 - - 20873 9468
D1G2G2 - - 19480 8836 - - 21438 9724
D2D2E2 - - 14934 6774 - - 15944 7232
D2F2F3 - - 17194 7799 - - 18594 8434
D2G2G1 - - 19072 8651 - - 21074 9559
D2G3G3 - - 19881 9018 - - 22013 9985
D3D2E2 - - 14934 6774 - - 15944 7232
D3F2F3 - - 17194 7799 - - 18594 8434
D3G2G1 - - 19023 8629 - - 21023 9536
E3D2E2 - - 15093 6846 - - 16100 7303
E3F2F3 - - 17337 7864 - - 18728 8495
E3G2G1 - - 19173 8697 - - 21173 9604
E3G3G3 20036 9088 22169 10056
Notes:
1. All weights +/- 3%
2. Shipping weights include standard 150 psig water boxes, refrigerant charge and oil charge.
3. Operating weights include refrigerant, oil and water charges.
4. AFD frame size determined by unit selection. See submittal for information.
(a) Weights vary with AFD frame size. D1H frame size used on units with model number digit 44 = G, H, J, V, W, X, 2, 3, or 4. D2H frame size
used with model number digit 44 = K, L, M, N, Y, Z, 1, 5, 6, or 7.
(b)Unit configuration digits 1, 2 - compressor code (also shown in unit model number digits 6, 7); digits 3, 4 - evaporator code (unit model number
digits 14, 15); digits 5, 6 - condenser code (unit model number digits 21, 22).

Dimensions and Weights
RTHD-SVX01K-EN 19
Service Clearances
Notes:
•Required vertical clearance above unit is 36” (914 mm).
There should be no piping or conduit located over the
compressor motor.
•Maximum clearances are given. Some units
configurations may require less clearance than others
in the same category.
•If the room configuration requires a variance to the
clearance dimensions, contact your Trane sales office
representative.
Figure 5. Service clearances(a)
(a) Optional AFD is not shown. See Figure 3, p. 9 for location of optional AFD.
3’-0” (914mm)
Service Clearance
END VIEW
3’-0” (914 mm)
Service Clearance
3’-0” (914mm)
Service Clearance
(Opposite
Tube Removal)
3’-0”
(914mm)
Service
Clearance
26.4” (671mm)
Radius
36.5” (927mm)
Radius
105° Swing
Tube Removal
Clearance
(Either End)
EDE, DDE, CDE, BBB:
108” (2743mm)
EFF, DFF, CEF, BCD:
126” (3200mm)
EGG, DGG, CGG:
130” (3302mm)
TOP VIEW

20 RTHD-SVX01K-EN
Installation Mechanical
Location Requirements
Sound Considerations
Note: See Trane Engineering Bulletin Sound Ratings and
Installation Guide Optimus™ Water-Cooled
Chillers RLC-PRB015*-EN for sound consideration
applications.
• Locate the unit away from sound-sensitive areas.
• Install the isolation pads under the unit. Refer to “Unit
Isolation.”
• Install rubber vibration isolators in all water piping.
• Isolate all pipe hangers and be sure they are not
supported by main structure beams that could
introduce vibration into occupied spaces.
• Make sure that the piping does not put additional
stress on the unit.
Note: Do not use metal braided type eliminators on the
water piping. Metal braided eliminators are not
effective at the frequencies at which the unit will
operate.
• Use flexible electrical conduit.
• Seal all wall penetrations.
Note: Consult an acoustical engineer for critical
applications.
Foundation
Provide rigid, non-warping mounting pads or a concrete
foundation of sufficient strength and mass to support the
applicable operating weight (i.e. including completed
piping, and full operating charges of refrigerant, oil and
water).The expectation for our equipment is that attached
piping is fully supported by an independent structure/
system ,without being connected to the waterbox. Once in
place, the unit must be level within 1/2" (12.7 mm) across
the length and width of the unit. The Trane Company is not
responsible for equipment problems resulting from an
improperly designed or constructed foundation.
See Table 5, p. 17 or Table 6, p. 18 for unit operating
weights.
Place the manufacturer-supplied isolation pad assemblies
under the unit. Once in place, level the chiller within 1/4”
(6.35 mm) over its length and width.
Clearances
Provide enough space around the unit to allow the
installation and maintenance personnel unrestricted
access to all service points. Refer to submittal drawings for
the unit dimensions.
See Figure 5, p. 19 for minimum clearances required for
service. In all cases, local codes will take precedence over
these recommendations.
Ventilation
The unit produces heat even though the compressor is
cooled by the refrigerant. Make provisions to remove heat
generated by unit operation from the equipment room.
Ventilation must be adequate to maintain an ambient
temperature lower than the following:
Vent the evaporator, condenser and compressor pressure
relief valves in accordance with all local and national
codes. See Table 8, p. 35
Make provisions in the equipment room to keep the chiller
from being exposed to freezing temperatures (32oF/0oC).
Water Drainage
Locate the unit near a large capacity drain for water vessel
drain-down during shutdown or repair. Condensers and
evaporators are provided with drain connections. See “,”
p. 31. All local and national codes apply.
Access Restrictions
Door clearances are given in Figure 5, p. 19. See unit
submittals for specific “per unit” dimensional
information.
Rigging
Important: If unit must be disassembled for
installation, see Engineering Bulletin RTHD-
SVB02*-EN, Disassembly Procedure,
Optimus™ Water-Cooled Chillers, for
instructions, including weights and rigging
instruction for components.
The Optimus™ chiller should be moved by lifting at
designated lift points only. See Table 5, p. 17 and Table 6,
p. 18 for overall unit weights. See Figure 6, p. 21 for typical
unit lifting point weights.
Wye-Delta Starter Units: 104°F (40°C)
AFD Unit Option: 104°F (40°C)