Trane Voyager RT-DS-10 Bedienungsanleitung

RT-DS-10

April 1999

Packaged

Rooftop

Air Conditioners

23 to 42 Ton (81-148 kW)

Voyager

Commercial  50 HZ

©American Standard Inc. 1999

Features

and

Benefits

Over the years the Voyagerproduct

line has developed into the most

complete line of commercial packaged

units available. We were first with the

Micro when we developed micro-

electronic unit controls and we move

ahead again with Voyager Commercial

products.

Five new sizes from 23-42 tons (81-148

kW) meet the needs of the changing

commercial rooftop marketplace.

Our customers demand units that will

have exceptional reliability, meet

stringent performance requirements,

and be competitively priced. These

same requirements drove the design of

the original light commercial Voyager

and have been carried forward into

Voyager Commercial.

Voyager Commercials features and

benefits are comprised of cutting edge

technologies like the reliable 3-D

Scroll compressor, Trane engineered

microprocessor controls, computer-

aided run testing, and Integrated

Comfortsystems. So, whether youre

the contractor, the engineer, or the

owner you can be certain that when

youve chosen Voyager Commercial,

youve chosenSimply the best value!

ContentsContents

Optional Features

Electric heat

Natural gas heat

LP gas heat (kit only)

Power exhaust

Barometric relief

High efficiency 2 (51 mm) throwaway

filters

High efficiency 4 (102 mm) throwaway

filters

High efficiency supply fan motors

Manual fresh air damper

Economizer with dry bulb control

Economizer with reference enthalpy

control

Economizer with differential

(comparative) enthalpy control

Inlet guide vanes on VAV units

Service valves

Through-the-base electrical provision

Factory mounted disconnect with

external handle (non-fused)

Integrated Comfortsystem control

option

Ventilation override

Hinged service access

Factory installed condenser

coil guards

Standard Features

Factory installed and commissioned

microelectronic controls

Trane 3-DScroll compressors

Dedicated downflow or horizontal

configuration

CV or VAV control

FROSTATcoil frost protection on all

units

Supply air overpressurization

protection on VAV units

Supply airflow proving

Emergency stop input

Compressor lead-lag

Occupied-unoccupied switching

Timed override activation

FC supply fans

Two-inch (51 mm) standard efficiency

filters

Finish exceeds salt spray requirements

of ASTM B117

Features and Benefits 2

Model Number Description 9

General Data 10

Application Considerations 13

Selection Procedure 15

Performance Adjustment Factors

Performance Data 18

Electrical Data 30

Controls 32

Dimensional Data 35

Weights 38

Field Installed Sensors 39

Mechanical Specifications 42

One of two matched scroll plates  the

distinguishing feature of the scroll

compressor.

Chart illustrates low torque variation of

3-D Scroll compressors reciprocating

compressor.

Trane 3-D®Scroll Compressor

Simple Design with 70% Fewer Parts

Fewer parts than an equal capacity

reciprocating compressor means

significant reliability and efficiency

benefits. The single orbiting scroll

eliminates the need for pistons,

connecting rods, wrist pins and valves.

Fewer parts lead to increased reliability.

Fewer moving parts, less rotating mass

and less internal friction means greater

efficiency than reciprocating

compressors.

Patented 3-D Scroll Compliance

Trane 3-D Scroll compliance provides

important reliability and efficiency

benefits. 3-D compliance allows the

orbiting scrolls to touch in all three

dimensions, forming a completely

enclosed compression chamber which

leads to increased efficiency. In

addition, 3-D compliance means the

orbiting scrolls only touch with enough

force to create a seal so there is no

wear between the scroll plates. The

fixed and orbiting scrolls are made of

high strength cast iron which results in

less thermal distortion, less leakage,

and higher efficiencies. The most

outstanding feature of the scroll

compressor 3-D compliance is that the

slugging will not cause failure. In a

reciprocating compressor, however, the

liquid or dirt can cause serious

damage.

Low Torque Variation

The 3-D Scroll compressor has a very

smooth compression cycle with torque

variations that are only 30 percent of

that produced by a reciprocating

compressor. This means the scroll

compressor imposes very little stress

on the motor for greater reliability. Low

torque variation means reduced noise

and vibration.

Suction Gas Cooled Motor

Compressor motor efficiency and

reliability is further optimized with this

design. Cool suction gas keeps the

motor cooler for longer life and better

efficiency.

Proven Design Through Testing and

Research

With over twenty years of development

and testing, Trane 3-D Scroll

compressors have undergone more

than 400,000 hours of laboratory

testing and field operation. This work

combined with over 25 patents makes

Trane the worldwide leader in air

conditioning scroll compressor

technology.

Features

and

Benefits

Features

and

Benefits

Micro Controls

For over 10 years Trane has been

working with microprocessor controls

in the applied equipment markets.

These designs have provided the

technology that has been applied to the

Voyager units.



The Micro provides unit control for

heating, cooling and ventilating

utilizing input from sensors that

measure outdoor and indoor

temperature.



The Micro improves quality and

reliability through the use of time-

tested microprocessor controls and

logic. The Micro:

 prevents the unit from short cycling,

considerably improving compressor

life.

 ensures that the compressor will run

for a specific amount of time which

allows oil to return for better

lubrication, enhancing the reliability of

the commercial compressor.



The Voyager with the Micro reduces

the number of components required to

operate the unit, thereby reducing

possibilities for component failure.

Quality and Reliability

Drum and Tube Heat Exchanger



The drum and tube heat exchanger is

designed for increased efficiency and

reliability and has utilized improved

technology incorporated in the large

roof top commercial units for almost

20 years.

The heat exchanger is manufactured

using aluminized steel with stainless

steel components for maximum

durability. The requirement for cycle

testing of heat exchangers is 10,000

cycles by ANSI Z21.47. This is the

standard required by both UL* and

AGA* for cycle test requirements.

Trane requires the design to be tested

to 21/2times this current standard. The

drum and tube design has been tested

and passed over 150,000 cycles which

is over 15 times the current ANSI

cycling requirements.

*Apply to 60 HZ testing standards only.



The negative pressure gas valve will

not allow gas flow unless the

combustion blower is operating. This is

one of our unique safety features.



The forced combustion blower supplies

premixed fuel through a single

stainless steel burner screen into a

sealed drum where ignition takes place.

It is more reliable to operate and

maintain than a multiple burner

system.



The hot surface ignitor is a gas ignition

device which doubles as a safety

device utilizing a continuous test to

prove the flame. The design is cycle

tested at the factory for quality and

reliability.

Forced Combustion Blower

Negative Pressure Gas Valve

Hot Surface Ignitor

Drum and Tube Heat Exchanger

Features

and

Benefits

Excellent Part-Load Efficiency



The Scroll compressors unique design

allows it to be applied in a passive

parallel manifolded piping scheme,

something that a recip just doesnt

do very well.

When the unit begins stage back at part

load it still has the full area and circuitry

of its evaporator and condenser coils

available to transfer heat. In simple

terms this means superior part-load

efficiencies (IPLV) and lower unit

operating costs.

FC Fans with Inlet Guide Vanes



Tranes forward-curved fans with inlet

guide vanes pre-rotate the air in the

direction of the fan wheel, decreasing

static pressure and horsepower,

essentially unloading the fan wheel.

The unloading characteristics of a

Trane FC fan with inlet guide vanes

result in superior part load

performance.

Rigorous Testing



All of Voyagers designs were

rigorously rain tested at the factory to

ensure water integrity.



Actual shipping tests are performed to

determine packaging requirements.

Units are test shipped around the

country. Factory shake and drop tested

as part of the package design process

to help assure that the unit will arrive at

your job site in top condition.



Rigging tests include lifting a unit into

the air and letting it drop one foot,

assuring that the lifting lugs and rails

hold up under stress.



We perform a 100% coil leak test at the

factory. The evaporator and condenser

coils are leak tested at 200 psig and

pressure tested to 450 psig.



All parts are inspected at the point of

final assembly. Sub-standard parts are

identified and rejected immediately.



Every unit receives a 100% unit run test

before leaving the production line to

make sure it lives up to rigorous Trane

requirements.

Ease of Installation

Contractors look for lower installation

(jobsite) costs. Voyagers

conversionless units provide many

time and money saving features.

Conversionless Units



The dedicated design units (either

downflow or horizontal) require no

panel removal or alteration time to

convert in the field  a major cost

savings during installation.

Improved Airflow



U-shaped airflow allows for improved

static capabilities. The need for high

static motor conversion is minimized

and time isnt spent changing to high

static oversized motors.

Single Point Power

A single electrical connection powers

the unit.

Micro



The function of the Micro replaces the

need for field installed anti-short-cycle

timer and time delay relays. The Micro

ensures that these controls are integral

to the unit. The contractor no longer

has to purchase these controls as

options and pay to install them.



The wiring of the low voltage

connections to the unit and the zone

sensors is as easy as 1-1, 2-2, and 3-3.

This simplified system makes it easier

for the installer to wire.

Features

and

Benefits

Serviceability

Todays owners are more conscious of

the cost of service and maintenance.

Voyager was designed with input from

service contractors. Their information

helped us design a unit that would get

the serviceman off the job quicker and

save the owner money. Here is why

Voyager can save money in service.

Voyagers Simpler Design

The Voyager design uses fewer parts

than previous units. Since it is simpler

in design, it is easier to diagnose.

Micro



The Micro requires no special tools to

run the Voyager unit through its paces.

Simply place a jumper between Test 1

and Test 2 terminals on the Low

Voltage Terminal Board and the unit

will walk through its operational steps

automatically.

 The unit automatically returns control

to the zone sensor after stepping

through the test mode a single time,

even if the jumper is left on the unit.



As long as the unit has power and the

system on LED is lit, the Micro is

operational. The light indicates that the

Micro is functioning properly.



The Micro features expanded

diagnostic capabilities when utilized

with Tranes Integrated Comfort

Systems.



Some zone sensor options have central

control panel lights which indicate the

mode the unit is in and possible

diagnostic information (dirty filters for

example).

Easy Access Low Voltage

Terminal Board

Voyagers Low Voltage Terminal Board

is external to the electrical control

cabinet. It is extremely easy to locate

and attach the thermostat wire. This is

another cost and timesaving

installation feature.

Value

Low Ambient Cooling

All Voyager Commercial units have

cooling capabilities down to 0°F

(-17.8°C) as standard.

Power Exhaust Option

Provides exhaust of the return air when

using an economizer to maintain

proper building pressurization. Great

for relieving most building

overpressurization problems.

Micro Benefits



The Micro in the Voyager units has

built-in anti-short-cycle timer, time

delay relay and minimum on time

controls. These controls are functions

of the Micro and are factory tested to

assure proper operation.



The Micro softens electrical spikes by

staging on fans, compressors and

heaters.



The Intelligent Fallback or Adaptive

Control is a benefit to the building

occupant. If a component goes astray,

the unit will continue to operate at

predetermined temperature setpoint.



Intelligent Anticipation is a standard

feature of the Micro. It functions

constantly as the Micro and zone

sensor work together in harmony to

provide tighter comfort control than

conventional electromechanical

thermostats.

VariTrac

Tranes changeover VAV System for

light commercial applications is also

available. Coupled with Voyager

Commercial, it provides the latest in

technological advances for comfort

management systems and can allow

thermostat control in every zone served

by VariTrac.

Downflow and Horizontal Economizers

The economizers come with three

options of controls (dry bulb, enthalpy

and differential enthalpy).

Trane Communication Interface or TCI

is available factory or field installed.

This module when applied with the

Micro easily interfaces with Tranes

Integrated Comfortsystem.

Trane factory built roof curbs are

available for all units.

One of Our Finest Assets:

Trane Commercial Sales Engineers are

a Support group that can assist you

with:

 Product

 Application

 Service

 Training

 Special Applications

 Specifications

 Computer Programs and more

Features

and

Benefits

VariTrac

CCP

Model

Number

Description

TC D 400 A C 0 A 1 A 4 F D 1 A

1,2 3 4,5,6 7 8  9 10 11 12  13 14 15 16 17

Note:

1. All voltages are across-the-line starting only.

2. Option includes Liquid, Discharge, Suction Valves.

3. Supply air fan drives A thru G are used with 22.9-29.2 ton (82-105 kW) units only and

drives H thru N are used with 33.3 and 41.7 ton (120-148 kW) units only.

4. Electric Heat kW ratings are based upon voltage ratings of 380/415 V. Heaters A, B, C, D

are used with 22.9-29.2 ton (82-105 kW) units only and heaters B, C, D, E are used with

33.3-41.7 ton (120-148 kW) units only.

Digits 1, 2  Unit Function

TC = DX Cooling, No Heat

TE = DX Cooling, Electric Heat

YC = DX Cooling, Natural Gas Heat

Digit 3  Unit Airflow Design

D = Downflow Configuration

H = Horizontal Configuration

Digits 4, 5, 6  Nominal Cooling Capacity

275 = 22.9 Tons (82 kW)

305 = 25.4 Tons (89 kW)

350 = 29.2 Tons (105 kW)

400 = 33.3 Tons (120 kW)

500 = 41.7 Tons (148 kW)

Digit 7  Major Development Sequence

A = First

B = Second, Etc.

Digit 8  Power Supply (See Note 1)

C = 380/50/3

D = 415/50/3

Digit 9  Heating Capacity (See Note 4)

0 = No Heat (TC only)

L = Low Heat (YC only)

H = High Heat (YC only)

Note: When second digit is E for Electric

Heat, the following values apply in the

ninth digit.

380V / 415V

A = 23 27 kW

B = 34 40 kW

C = 45 54 kW

D = 56 67 kW

E = 68 81 kW

Digit 10  Design Sequence

A = First

Digit 11  Exhaust

0 = None

1 = Barometric Relief

(Available w/Economizer only)

2 = Power Exhaust Fan

(Available w/Economizer only)

Digit 12  Filter

A = Standard 2 (51 mm) Throwaway Filters

B = High Efficiency 2 (51 mm) Throwaway

Filters

C = High Efficiency 4 (102 mm) Throwaway

Filters

Digit 13  Supply Fan Motor, HP

1 = 7.5 Hp Std. Eff. (5.6 kW)

2 = 10 Hp Std. Eff. (7.5 kW)

3 = 15 Hp Std. Eff. (11.2 kW)

4 = 20 Hp Std. Eff. (14.9 kW)

Digit 14  Supply Air Fan Drive Selections

(See Note 3)

A = 458 H = 417

B = 500 J = 437

C = 541 K = 479

D = 583 L = 521

E = 625 M = 562

F = 658 N = 604

G = 664

Digit 15  Fresh Air Selection

A = No Fresh Air

B = 0-25% Manual Damper

C = 0-100% Economizer, Dry Bulb Control

D = 0-100% Economizer, Reference

Enthalpy Control

E = 0-100% Economizer, Differential

Enthalpy Control

F = C Option and Low Leak Fresh

Air Damper

G = D Option and Low Leak Fresh

Air Damper

H = E Option and Low Leak Fresh

Air Damper

Digit 16  System Control

1 = Constant Volume

2 = VAV Supply Air Temperature Control

w/o Inlet Guide Vanes

3 = VAV Supply Air Temperature Control

w/Inlet Guide Vanes

Note: Zone sensors are not included with

option and must be ordered as a separate

accessory.

Digit 17+  Miscellaneous

A = Service Valves (See Note 2)

B = Through the Base Electrical Provision

C = Non-Fused Disconnect Switch with

External Handle

D = Factory-Powered 15A GFI

Convenience Outlet and Non-Fused

Disconnect Switch with

External Handle

E = Field-Powered 15A GFI

Convenience Outlet

F = ICS Control Option  Trane

Communication Interface, Supply Air

Sensing and Clogged Filter Switch

G = Ventilation Override

H = Hinged Service Access

J = Condenser Coil Guards

Table 10-1  General Data  23-25 Tons

TC*275 (23 Tons) TC*305 (25 Tons)

Cooling Performance1

Nominal Gross Capacity(Btuh) 279,000 (81.8 kW) 304,000 (89.1 kW)

System Power kW 26.1 30.2 kW

Compressor

Number/Type 2/Scroll 2/Scroll

Nominal Motor HP (ea) 8.4/12.5 11.7

Motor RPM 2875 2875

Natural Gas Heat2Low High Low High

Heating Input(Btuh) 290,000 (85.0 kW) 500,000 (147 kW) 290,000 (85.0 kW) 500,000 (147 kW)

First Stage 250,000 (73.3 kW) 425,000 (125 kW) 250,000 (73.3 kW) 425,000 (125 kW)

Heating Output(Btuh) 243,000 (69.0 kW) 405,000 (119 kW) 243,000 (69.0 kW) 405,000 (119 kW)

First Stage 202,500 (59.4 kW) 344,250 (101 kW) 202,500 (59.4 kW) 344,250 (101 kW)

Steady State Efficiency(%) 381 81

No. Burners/No. Stages 1/2 1/2

Gas Connect Pipe Size (in) 0.75 (19 mm) 0.75 (19 mm)

Outdoor Coil - Type LANCED LANCED

Tube Size OD (in) 0.375 (10 mm) 0.375 (10 mm)

Face Area (sq ft) 51.3 (4.8 sq m) 51.3 (4.8 sq m)

Rows/Fins Per Inch (25mm) 2/16 2/16

Indoor Coil - Type HI-PERFORM HI-PERFORM

Tube Size OD (in) 0.500 (13 mm) 0.500(13 mm)

Face Area (sq ft) 31.7 (2.9 sq m) 31.7 (2.9 sq m)

Rows/Fins Per Inch (25mm) 2/14 2/14

Refrigerant Control TXV TXV

PVC Drain Connect No./Size (in) 1/1.25 (1/32 mm) 1/1.25 (1/32 mm)

Outdoor Fan Type PROP FAN PROP FAN

No. Used 3 3

Diameter (in.) 28.0 (711 mm) 28.0 (711 mm)

Drive Type/No. Speeds DIRECT/1 DIRECT/1

Cfm 20,450 (9650 L/s) 20,450 (9650 L/s)

No. Motors (RPM) 3 (940) 3 (940)

Motor HP 0.75 (0.56 kW) 0.75 (0.56 kW)

Indoor Fan Type/No. Used FC/1 FC/1

Diameter (in) 22.4 (568 mm) 22.4 (568 mm)

Width (in) 22.0 (559 mm) 22.0 (559 mm)

Drive Type BELT BELT

No. Speeds/No. Motors 1/1 1/1

Motor HP 7.5 (5.6 kW) 7.5 (5.6 kW)

Motor RPM/Frame Size 1460/213T 1460/213T

Filters - Type THROWAWAY THROWAWAY

Furnished/No. Yes/16 Yes/16

Recommended Size (in) 16X 20 X2 (406X 508 X51mm) 16x20x2 (406X 508x51mm)

Refrigerant Type R-22 R-22

Factory Charge (lbs) 446 (21 kg) 46 (21 kg)

Notes:

1. Cooling Performance is rated at 95°F (35°C) ambient, 80°F (27°C) entering dry bulb, 67°F (19°C) entering wet bulb. Gross capacity does not include the effect of

fan motor heat.

2. Heating Performance Limit settings and ratings data were established and approved under laboratory test conditions using American National Standards.

3. Steady State Efficiency is rated in accordance with DOE test procedures.

4. Refrigerant charge is an approximate value. For a more precise value, see unit nameplate and service instructions.

General

Data

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