Trane GECA Manual del propietario

Trane Axiom™

Water-Source

Comfort System

Standard Efficiency

Console Model GECA

(50 Hz)

WSHP-PRC004-EN

February 2001

WSHP-PRC004-EN©American Standard Inc. 2001

Introduction

Another Solution by Trane

Trane has developed another system

solution to add to their exceptional

water-source product line. Introducing

the Trane Axiom™(Model GECA) water-

source comfort system.

The attractive sloped top design

provides both fundamental performance

requirements, exceptional quality, and

added features to enhance maintenance-

ability and sound attenuation.

The design offers:

•Dual sloped plastic drain pan

•Hot gas reheat

(option)

•Electric heat

(option)

•Internal mount loop pump kit

(option)

•Motorized 25% outside-air

(option)

•Disconnect switch

(option)

•Field adjustable supply-air grille

•Integrated controls

•Quiet unit design

•Panel free filter maintenance

•High and low pressure switches as

standard

•Compact size

WSHP-PRC004-EN

Introduction

Model Number Description

General Data

Features and Benefits

Performance Data

Fan

Sound

Control Wiring

Dimensional Data

Accessories

Mechanical Specifications

Contents

WSHP-PRC004-EN4

Model Number

Description

DIGITS 1-3: UNIT CONFIGURATION

GEC = General Efficiency Console

DIGIT 4: DEVELOPMENT SEQUENCE A

DIGITS 5-7: NOMINAL SIZE (MBH)

006 = 6.0 MBH

009 = 9.0 MBH

012 = 12.0 MBH

015 = 15.0 MBH

DIGIT 8: VOLTAGE (Volts/Hz/Phase)

6 = 220-240/50/1

DIGIT 9: HEAT EXCHANGER

1 = Copper Water Coil

2 = Cupro-nickel Water Coil

DIGIT 10: DESIGN SEQUENCE

A = First Design

DIGIT 11: REFRIGERATION CIRCUIT

0 = Heating and Cooling Circuit

2 = Heating and Cooling Circuit w/ Hot Gas

Reheat

A = Cooling ONLY Circuit

C = Cooling ONLY Circuit w/ Hot Gas Reheat

DIGIT 12: BLOWER CONFIGURATION

1 = Standard Blower

DIGIT 13: CUSTOMER CHANNEL

1 = Boiler / Tower Design

2 = Geothermal Design

5 = International Design

DIGIT 14: OPEN DIGIT

0 = Standard Design

DIGIT 15: SUPPLY-AIR ARRANGEMENT

0 = Standard Supply-Air Arrangement

DIGIT 16: RETURN-AIR ARRANGEMENT

0 = Standard Return-Air Arrangement

DIGIT 17: CONTROL TYPES

0 = Basic 24V Controls

D = Deluxe 24V Controls

C = Tracer ZN.510 Controls

A = TUC Stand-alone Controls

T = TUC/ICS Control

DIGIT 18: T’STAT/SENSOR LOCATION

0 = Wall Mounted Location

1 = Unit Mounted Location with Standard

Entry

2 = Unit Mounted Location with Keylock Entry

DIGIT 19: FAULT SENSORS

0 = No Fault Sensor

1 = Condensate Overflow Sensor

2 = Filter Maintenance Timer

3 = Condensate Overflow and Filter

Maintenance Timer

4 = Fan Status Sensor

5 = Dirty Filter Sensor

6 = Condensate Overflow and Fan Status

Sensor

7 = Condensate Overflow and Dirty Filter

Sensor

8 = Fan Status and Dirty Filter Status Sensor

9 = Fan Status, Dirty Filter Status and

Condensate Overflow Sensor

DIGIT 20: TEMPERATURE SENSOR

0 = No Additional Temperature Sensor

1 = Entering Water Sensor

2 = Return-Air/Mixed-Air Temperature Sensor

3 = Entering Water/Mixed-Air

Temperature Sensor

DIGIT 21: NIGHT SETBACK

0 = No Night Setback Relay

N = Night Setback Relay

DIGIT 22: ELECTRIC HEAT OPTION

0 = No Electric Heat

2 = Boilerless Control/Electric Heat (minimum)

3 = Boilerless Control/Electric Heat

(maximum)

DIGIT 23: UNIT MOUNTED DISCONNECT

0 = No Unit Mounted Disconnect

A = Power Cord/Receptacle Box Disconnect

B = Power Cord/Receptacle Box Disconnect

with Circuit Breaker

DIGIT 24: FILTER TYPE

0 = No Filter (Chassis ONLY)

1 = 1-inch [25.4 mm] Throwaway Filter

DIGIT 25: ACOUSTIC ARRANGEMENT

0 = Sound Attenuation Package

DIGIT 26: FACTORY CONFIGURATION

0 = Standard Factory Configuration (chassis,

cabinet, and subbase)

1 = Chassis ONLY

2 = Low Height Factory Configuration

(chassis, cabinet, and subbase)

3 = Extended Length Factory Configuration

(chassis, cabinet, and subbase)

DIGIT 27: PAINT COLOR

0 = No Paint Selection Available (chassis

ONLY)

1 = Deluxe Beige

2 = Cameo White

3 = Soft Dove

DIGIT 28: OUTSIDE AIR OPTION

0 = No Outside Air

1 = Outside Air Opening

2 = Motorized Outside Air Option (2-position)

DIGIT 29: PIPING ARRANGEMENT

L = Left Hand Piping Arrangement

R = Right Hand Piping Arrangement

2 = Left Hand Piping Arrangement with

Internal Mounted Loop Pump Kit

3 = Right Hand Piping with Internal Mounted

Loop Pump Kit

DIGITS 30-36: DOES NOT APPLY TO THE

CONSOLE PRODUCT

0000000 = Digits 30-36 Does NOT Apply to

the Horizontal/ Vertical Products

Water-Source Comfort System

GEC A012 6 1 A 0 1 1 0 0 0 D 0 1 0 N 0 0 1 0 0 1 0 L 000000

1-3 4 5-7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30-36

WSHP-PRC004-EN

General Data

Table GD-1 –Physical Data (GECA 006-009)

Model: GECA 006-009 006 009

Unit Size Length of cabinet (in) [mm] 48 or 63 [1219 or 1600] 48 or 63 [1219 or 1600]

Height (in) [mm] 25 or 22 1/2 [635 or 571] 25 or 22 1/2 [635 or 571]

Width (in) [mm] 12 [305] 12 [305]

Compressor Type Rotary Rotary

R-22 Refrigerant (lbs) [kg] Heating and Cooling 1.19 [.54] 1.22 [.55]

Cooling Only 1.06 [.48] 1.16 [.53]

Hot Gas Reheat n/a 1.375 [.62]

Approximate Weight without Pallet (lbs) [kg] Unit 192 [87.1] 204 [92.5]

Chassis Only 144 [653] 156 [70.8]

Approximate Weight with Pallet (lbs) [kg] Unit 222 [100.7] 234 [106]

Chassis Only 174 [78.9] 186 [84.4]

Filter Size (standard height - 25" [635 mm]) 1 x 10 x 32 3/8 [25.4 x 254 x 822] 1 x 10 x 32 3/8 [25.4 x 254 x 822]

Filter Size (low height - 22 1/2" [571 mm]) 1 x 7 3/4 x 30 5/8 [25.4 x 197 x 779] 1 x 7 3/4 x 30 5/8 [25.4 x 197 x 779]

Blower Wheel Size (in) [mm] (2) 5 1/4 x 8 1/8 [133 x 206] (2) 5 1/4 x 8 1/8 [133 x 206]

Table GD-2 –Physical Data (GECA 012-015)

Model: GECA 012-015 012 015

Unit Size Length of cabinet (in) [mm] 48 or 63 [1219 or 1600] 48 or 63 [1219 or 1600]

Height (in) [mm] 25 or 22 1/2 [635 or 571] 25 or 22 1/2 [635 or 571]

Width (in) [mm] 12 [305] 12 [305]

Compressor Type Rotary Rotary

R-22 Refrigerant (lbs) [kg] Heating and Cooling 1.75 [.79] 2.44 [1.1]

Cooling Only 1.5 [.68] 1.88 [.85]

Hot Gas Reheat n/a n/a

Approximate Weight without Pallet (lbs) [kg] Unit 203 [92.1] 210 [92.3]

Chassis Only 155 [70.3] 162 [73.5]

Approximate Weight with Pallet (lbs) [kg] Unit 233 [106] 240 [99.8]

Chassis Only 185 [83.9] 192 [87.1]

Filter Size (standard height - 25" [635 mm]) 1 x 10 x 32 3/8 [25.4 x 254 x 822] 1 x 10 x 32 3/8 [25.4 x 254 x 822]

Filter Size (low height - 22 1/2" [571 mm]) 1 x 7 3/4 x 30 5/8 [25.4 x 197 x 779] 1 x 7 3/4 x 30 5/8 [25.4 x 197 x 779]

Blower Wheel Size (in) [mm] (2) 5 1/4 x 8 1/8 [133 x 206] (2) 5 1/4 x 8 1/8 [133 x 206]

WSHP-PRC004-EN6

Features and

Benefits

Figure FB-1 –Cabinet Construction

Figure FB-2 –Hook-Secure Fit

Design Advantages

The console configuration model GECA

product offers a range of capacities 1/2to

11/4ton.

This compact HVAC advantage supports

multiple application requirements in the

commercial conditioning industry. This

includes:

•Hotel rooms

•Offices

•Condominiums

•Assisted living facilities

•Dormitories

Cabinet

The cabinet is constructed of heavy

gauge metal for maximum durability.

The cabinet finish is produced by a

corrosion resistant electrostatic powder

paint coating in the following

colors:

•Deluxe beige

•Cameo white

•Soft dove

Building Block Design

The console configuration maintains a

tri-building block design. It includes

•Cabinetry

•Chassis

•Subbase

These building blocks may be ordered in

several configurations. They include:

•Standard configuration

(cabinet,

chassis, and subbase)

•Low height configuration

(chassis,

cabinet, and short subbase)

•Extended length for unit mounted loop

pump kit

(cabinet, chassis, and

subbase)

•Chassis ONLY

The cabinet design includes a

hook-

secure fit

that allows complete access to

piping and electrical hookup for ease of

maintenance and serviceability. The

single cabinet assembly is securely

fastened into the wallsleeve.

(See Figure

FB-2 for hook-secure fit.)

WSHP-PRC004-EN

Features and

Benefits

Field Flexibility

Piping and electrical connections to the

console are made in either the left or

right hand end pocket. The unit

refrigeration platform and the unit

control box is maintained in the same

location whether left or right hand

piping, standard unit cabinetry, extended

unit cabinetry, or low height unit

cabinetry has been specified. This cloned

platform poses a common look and feel

to the installer, as well as aids in

troubleshooting during service or

maintenance checkups.

Differences

Right Hand Piping

Console units ordered with a right hand

piping connection have the end pocket

located on the right hand side of the unit.

This end pocket provides room for

connecting field supply, return, and

condensate piping to the unit. It also

provides space for the high and low

voltage connections.

See Figure FB-3 for

right hand piping.

Left Hand Piping

Console units ordered with a left hand

piping connection have the end pocket

located on the left hand side of the unit.

This end pocket provides room for the

field supply, return, and condensate

piping connection to the unit. Installation

for the high voltage connection is also

made in the left hand end pocket.

Installing the low voltage controls

(thermostat/sensor hookup) is ALWAYS

made on the right hand side of the unit.

The low voltage termination for

thermostat or sensor wires may be run

along the back side of the chassis to the

right hand side of the unit for

connection.

See Figure FB-4 for left hand

piping.

Note:

Units containing the unit mounted

control option will ship from the factory

prewired. No low voltage hookup is

required.

Figure FB-3 –Right Hand Piping

Figure FB-4 –Left Hand Piping

WSHP-PRC004-EN8

Features and

Benefits

Figure FB- 6 –Wall Sleeve

Wall Sleeve

The cabinets wall sleeve is attached to

the wall by (4) four, #10 field provided

screws. This rigid design allows for ease

of separation from the cabinet assembly

during service or installation situations.

The wall sleeve is painted the same color

as the cabinet for aesthetic purposes.

Drain Pan

The unit drain pan is composed of

plastic, corrosive resistive material. The

pan is positively sloped to comply with

ASHRAE 62 for (IAQ) indoor air quality

conformity.

Access to the drain pan is provided

through the front chassis access panel.

The drain pan is removable for cleaning.

Cabinet Insulation

The cabinet insulation design meets UL

181 requirements. The air stream surface

of the insulation is fabricated of a non-

biodegradable source.

The insulation in the wet section of the

cabinet complies with ASHRAE standard

62 to accommodate (IAQ) indoor air

quality standards.

Refrigeration Piping

The unit’s copper tubing is created from

a 99% pure copper formation that

conforms to the American Society of

Testing (ASTM) B743 for seamless, light-

annealed processing.

The unit’s copper refrigeration system is

manufactured to be free from

contaminants and conditions such as

drilling fragments, dirt, or oil. This

reduces the possibility of these

contaminants damaging the compressor

motor.

Schrader Connections

The connections for the low and high

side of the refrigeration system are

located in the chassis portion of the unit

at the front of the refrigeration assembly.

Access to the schrader connections are

made through the refrigeration service

access panel.

Air-to-Refrigerant Coil

The air-to-refrigerant heat exchanger is

constructed of staggered copper tubes

with die-formed corrugated lanced

aluminum fins. The fins are then

mechanically bonded to the tubes

through expansion.

The maximum working pressure of the

coil is 450 psig. It is designed for

maximum capacity with an additional

benefit of physical unit size reduction.

Coil specifications for the GECA unit is

listed below.

Compressor

The unit’s design includes a rotary

compressor motor in dedicated voltages

and tonnage sizes to aid in voltage

variations along with noise reduction of

the unit.

As an added benefit, Trane double

isolates the compressor and the

mounting plate assembly in the unit to

reduce sound vibration during

compressor operation.

Figure FB-7 –Plastic Drain Pan

Figure FB-8 –Rotary Compressor

Figure FB-9 –Schrader Connections

Table FB-1 –Coil Specifications

Unit Size Number of Rows Fins/inch

006 3 14

009 2 14

012 3 14

015 4 14

WSHP-PRC004-EN

Features and

Benefits

Coaxial Coil

The unit’s internal heat exchanging

water coil is engineered for maximum

heat transfer.

The copper or cupro-nickel seamless

tubing is a tube within a tube design.

The inner-tube contains a deep fluted

curve to enhance heat transfer and

minimize fouling and scaling. Coaxial

heat exchangers are more tolerant to

freeze rupture.

Compressor and Coaxial Coil Isolation

Vibration isolation for the compressor

and coaxial water coil is accomplished

by increasing the rigidity and stiffness at

the base for the compressor, and at the

back of the chassis for the coaxial water

coil. This platform includes double

isolation to the compressor and single

isolation to the coaxial water coil.

Water Connections

The water-in/water-out connections to

the coaxial water coil are located in the

right-hand or left hand end pocket

(option specific).

The water-in/water-out tubes are a

5/8-inch [14.7 mm] OD sweat connection.

The connection is available in either a

left hand or right hand piping end

pocket.

Figure FB-10 –Coaxial Water Coil Figure FB-11 –Water Connection

Expansion Valve

All Trane water-source systems include

an expansion valve flow metering

device.

This thermal expansion valve (TXV)

allows the unit to operate with an

entering fluid temperature from 25 F to

110 F [-3.9 C to 43.3 C], and entering air

temperatures from 40 F to 90 F [4.4 C to

32.2 C]. The valve precisely meters

refrigerant flow through the circuitry to

achieve desired heating or cooling.

Unlike cap-tube assemblies, the

expansion valve device allows the exact

amount of refrigerant required to meet

the coil load demands. This precise

metering by the TXV increases the

efficiency of the unit.

Reversing Valve

A system reversing valve (4-way valve)

is included with all heating/ cooling

units. This valve is piped to be energized

in the cooling mode. Once the valve is

energized for cooling, it will remain

energized until the control system is

turned to the OFF position, or a heating

cycle is initiated.

Units with the cooling only option will

not receive a reversing valve.

Figure FB-12 –Expansion Valve

Figure FB-13 –Reversing Valve

Blower Housing

The blower housing is constructed of

non-corrosive galvanized steel.

Serviceability to the housing is made

through the chassis air-side front panel.

The fan housing is mounted onto a

fanboard assembly which also includes

the fan wheel, and fan motor. This fan

board assembly may be easily removed

from the chassis by sliding the fan board

frontward in maintenance or service

situations.

Figure FB-14 –Fan Board Assembly

WSHP-PRC004-EN10

Features and

Benefits

Figure FB-15 –Blower Motor

Blower Motor

The supply-air (blower) motor is a multi-

speed motor with internal thermal

overload protection. The motor bearings

are permanently lubricated and sealed.

Standard motors are rated from 200

CFM at low speed (unit size 006) to 425

CFM at high speed (unit size 015).

All motors are factory wired for low and

high speed options. Switching for speed

control is located in the unit control

panel.

(See Figure FB-15 for blower

motor and Figure FB-16 for fan switching

control panel.)

See fan performance section for factory

ratings of low and high speed settings.

Air-Side Filter

The air-side filter incorporates a 1-inch

[25.4 mm] thick (nominal) disposable

fiberglass option. The filter includes an

average synthetic dust weight arrestance

of approximately 75%. This dust holding

capability includes a colorless, odorless

adhesive to retain dirt particles within

the filter media after fiber contact.

The filter is accessible through the

return-air portion of the unit subbase.

Panel removal is not necessary to

facilitate filter maintenance for the

standard height unit configuration.

Figure FB-16 –Fan Switch Control Panel

Figure FB-17 –Filter Media

Supply-Air Registers

Supply-air registers for the GECA

product are constructed of a plastic,

corrosive resistive material. The registers

include a snap-in deflection design to

simplify installation, as well as facilitate

the ability to apply a bi-directional

arrangement across the register.

Hinged Control Box

Controls for the console unit are housed

on the right-hand side of the chassis. The

box dwells above the refrigeration

section of the chassis.

Access to the controls are made by way

of a hinged control box. This hinged box

allows easy access for service and

installation of the controls portion of the

chassis.

Figure FB-18 –Bi-directional Registers

Figure FB-19 –Hinged Control Box

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