Trane GETB Manual de usuario

WSHP-SVN08B-ENFebruary 2006

Models

“A” and later Design Sequence

Installation

Owner

Diagnostics

Vertical Stack

Water-Source Heat Pump

Model GETB

GETB

009-036 – 60 HZ

009-036 – 50 HZ

Notice

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 situation

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.

NOTICE:

Unit contains HCFC (R-22) Refrigerant

Instructions!

Section 608, Paragraph C of the 1990 Clean Air Act states:

Effective July 1, 1992, it shall be unlawful for any person, in course of

maintaining, servicing, repairing, or disposing of an air conditioning system, to

knowingly vent or release any CFC or HCFC refrigerant. Minimal releases (air

purges or refrigerant hoses) associated with good faith attempts to recapture or

recycle are exempt from the ban on venting.

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. 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.

Important!

Equipment is shipped FOB (Free on Board) at the

manufacturer. Therefore, freight claims for damages

against the carrier must be initiated by the receiver.

WSHP-SVN08B-EN 3

Contents

Installation/Startup/Commissioning

Pre-installation Checklist 4

General Information 5

Dimensions/Weights 6

Installation Instructions 9

Electrical Requirements 18

Pre-Startup Checklist 19

Startup/Commissioning

Sequence of Operation 20

Operating Pressures 21

Startup Checklist & Log 24

Maintenance

Warranty Information

Troubleshooting Checklist

Unit Wiring

4WSHP-SVN08B-EN

WARNING

Fiberglass Wool!

Product contains fiberglass wool. Disturbing the insulation in this

product during installation, maintenance or repair will expose you to

airborne particles of glass wool fibers and ceramic fibers known to the

state of California to cause cancer through inhalation. Glass wool fibers

may also cause respiratory, skin or eye irritation.

Jobsite Inspection

Always perform the following checks before accepting a unit:

1. Verify that the nameplate data matches the data on the sales order and bill of

lading (including electrical data).

2. Verify that the power supply complies with the unit nameplate specifications.

3. Visually inspect the exterior of the unit, for signs of shipping damage. Do not

sign the bill of lading accepting the unit(s) until inspection has been com-

pleted. Check for damage promptly after the unit(s) are unloaded. Once the

bill of lading is signed at the jobsite, the unit(s) are now the property of the

SOLD TO party and future freight claims MAY NOT be accepted by the freight

company.

4. Verify that the refrigerant charge has been retained during shipment by use

of gauges. Schrader taps are located external to the cabinet on the 2-ton

through 6-ton equipment.

5. After assuring that charge has been retained, reinstall the schrader caps to

assure that refrigerant leakage does not occur.

CAUTION

Microbial Growth!

Wet interior unit insulation can become an amplification site for

microbial growth (mold), which may cause odors and damage to the

equipment and building materials. If there is evidence of microbial

growth (mold) on the interior insulation, the insulation should be

removed and replaced prior to operating the system.

Jobsite Storage

This unit is intended for indoor use only. To protect the unit from damage due to

the elements, and to prevent possible IAQ contaminant sources from growing,

the unit should be stored indoors. If indoor storage is not possible, the following

provisions for outdoor storage must be met:

1. Place the unit(s) on a dry surface or raise above the ground to assure ade-

quate air circulation beneath the unit.

2. Cover the unit(s) with a water proof tarp to protect them from the elements.

3. Make provisions for continuous venting of the covered units to prevent

moisture from standing on the unit(s) surfaces. Wet interior unit insulation

can become an amplification site for microbial growth (mold) which has

been determined to be a cause of odors and serious health related indoor air

quality problems.

4. Store refrigeration units (chassis) units in the normal UP orientation to main-

tain oil in the compressor. Cabinet configurations may be stored as crated.

5. Do not stack units.

Pre-installation

Checklist

WSHP-SVN08B-EN 5

Unit Nameplate

The unit nameplate is located at the

front of the unit. It includes the unit

model number, serial number, electri-

cal characteristics, refrigerant charge,

and other pertinent unit data.

Compressor Nameplate

The nameplate for the compressors

are located on the compressor shell.

Unit Description

Before shipment, each unit is leak test-

ed, dehydrated, charged with refriger-

ant and run tested for proper control

operation.

Water-to-Refrigerant Coils

The co-axial water-to-refrigerant heat

exchanger for the 3/4-ton through 3-

ton equipment is constructed of cop-

per or cupro-nickel (option) for the wa-

ter section and stainless steel for the

refrigeration section.

The heat exchanger is leak tested to

assure there is no cross leakage be-

tween the water and refrigerant gas.

Water Connections

1/2" or 3/4" water connections are lo-

cated on the chassis’s upper section

and clearly labeled for water-in/out

hose to riser hook-up.

Blower/Motor

The blower and motor is located inside

the unit cabinet. The blower and motor

may be removed from the cabinet

through the chassis opening. After re-

moving the chassis, the blower as-

sembly is strapped into the unit

cabinet through a single metal, flexi-

ble bracket. We refer to this bracket as

a housing belly bracket. After detach-

ing one screw at the bottom/front edge

of the bracket, the housing and motor

are free to be lifted from the fan deck.

Sound Attenuation

Sound attenuation is applied as a stan-

dard feature in the product design. The

enhanced reduction package includes

a heavy gage base plate, and gasket/

insulation around the compressor en-

closure.

An optional deluxe sound reduction

package is also available. It includes a

heavy gage base plate, gasket and in-

sulation around the compressor enclo-

sure, and vibration isolation between

the chassis and cabinet. An additional

dampening treatment is applied

around the compressor enclosure to

achieve greater acoustical reductions.

Controls

The control system offered to control

the unit is a Basic 24 volt control for

the 3/4-ton through 2-ton retrofit

(WPRD) equipment. A 50 VA trans-

former is factory supplied on this unit

configuration. See wiring diagram on

chassis access panel for field wiring

connection to the 24 volt mechanical

thermostat.

Deluxe 24V Controls

(GET model)

Units containing the Deluxe 24V con-

trol design will incorporate a micro-

processor-based control board. The

Trane microprocessor board is factory

wired to a terminal strip to provide all

necessary terminals for field connec-

tion. The deluxe board is equipped

with a random start relay, anti-short

cycle timer, brown out protection,

compressor disable, unit safety con-

trol, diagnostics and a generic relay

(which may be available for field use).

See page 16 for diagnostic informa-

tion.

Power wiring is made at the contactor.

The wiring is fed through the left or

right conduit tube, and into the cabi-

net’s control box (contactor).

ZN510 Controls

(GET option)

Units incorporating the ZN510 control

option design will include a digital

LonTalkTM certified control board. The

control board will support such op-

tions as: random start delay, heating/

cooling status, occupied/unoccupied

mode and fan/filter status.

Power wiring is made at the contactor.

The wiring is fed through the left or

right conduit tube, and into the cabi-

net’s control box (contactor). See

manual WSHP-IOP-2 for diagnostic in-

formation.

Schrader Connections

Connections for the low and high side

of the refrigeration system are located

conveniently on the chassis’ top be-

neath a sheet metal plate.

General

Information

6WSHP-SVN08B-EN

ALLOW 36" (914 mm)

AT UNIT FRONT FOR

CHASSIS REMOVAL

RSD

Table 1: Unit weights

Size

Shipping

Weight

with pallet (lb)

Shipping

Weight

w/o pallet (lb)

Cabinet

009 135 115

012 135 115

015 175 150

018 175 150

024 225 195

036 225 195

Chassis

009 90 80

012 95 85

015 110 100

018 115 105

024 190 180

036 200 190

WARNING

Improper Unit Lift!

Test lift unit approximately 24 inches to verify proper

center of gravity lift point. To avoid dropping of unit,

reposition lifting point if unit is not level. Failure to

properly lift unit could result in death or serious injury

or possible equipment or property-only damage.

Dimensions/Weights/

Clearance

Figure 1: Mechanical clearances

Unit Location and Clearances

Locate the unit in an indoor area. The

ambient temperature surrounding the

unit must not be less than 45°F. Do not

locate the unit in areas subject to

freezing.

Attention should be given to service

clearance and technician safety. The

unit chassis should be easily removed

from the cabinet in all applications.

There must be enough space for ser-

vice personnel to perform mainte-

nance or repair. Provide sufficient

room to make water, and electrical

connection(s). Local and national

codes should be followed in providing

electrical power connections. See Fig-

ure 1 for mechanical clearances.

WSHP-SVN08B-EN 7

SWAGE 3" (76)

UNITS WITHTOP DISCHARGE ARE 80" (2032) IN HEIGHT

ALL OTHER UNITS ARE 88" (2235) IN HEIGHT

FROM 96" (2438)

TO 120" (3048)

2 1/2" (63.5)

DRAIN

CONNECTION

4 3/4"

(121)

60" (1524)

3/4" (19) O.D.

CHASSIS

ACCESS

PANEL

THROWAWAY

FILTER

CONTROL BOX

LOW VOLTAGE

CONNECTION BOX

FORTHERMOSTAT

SUPPLY-AIR

OPENING

1 1/4" (32)

1/2" (12.7) O.D.

ELECTRIC CONDUIT

1" (25.4)

(25.4)

1" (25.4)

3 3/4"

(95)

8" (203)

12 1/2"

(318)

3 3/4"

(95)

8" (203)

12 1/2"

(318)

RETURN

SUPPLY

DRAIN

OPTIONAL

DUCT OPENING

1" (12.7) DUCT

COLLAR

RSD

VARIES DEPENDENT

ON RISER O.D.

TOP

FRONT RIGHT SIDE

11" (279) FOR 80" (2032) CABINET HEIGHT

3" (76) FOR 88" (2235) CABINET HEIGHT

SUPPLY-AIR OPENINGS AND RISER LOCATIONS CANNOT

BE ONTHE SAME SIDE OFTHE UNIT.

RISER LOCATION CAN BE ON ANY SIDE EXCEPT FRONT,

AND MAY BE SUPPLIED BYTRANE OR BY OTHERS.

NOTE:

RIGHT RISER

LOCATION SHOWN

IN FRONT AND RIGHT

VIEWS.

RISER CONNECTION

1/2” (13) NPTE = 009-018

3/4” (19) NPTE = 024,036

Dimensions

GET 009-036

GET A B C D E F

009, 012 16 1/4" (413) 16 1/4" (413) 8 1/8" (206) 39 1/8" (994) 14 3/4" (375) 3/4" (19)

015-018 18" (457) 20" (508) 10" (254) 40 5/8" (1032) 18 3/4" (476) 3/4" (19)

024-036 24" (610) 24" (610) 12" (305) 49 5/8" (1260) 22 5/8" (575) 3/4" (19

8WSHP-SVN08B-EN

RETURN-AIR OPENING

FLANGE ON CABINET

RETURN-AIR OPENING

FLANGE ON CABINET

2 X 4 STUD

Unit Size

012

015

018

024

036

19 1/4”

(489)

23 1/4”

(591)

27 1/8”

(689)

44 1/8”

(1121)

45 1/4”

(1149)

54 5/8”

(1387)

SHEET ROCK

OPENING

TOP VIEW

SIDE VIEW

CABINET

5“

4 5/8“

2 1/4“

3 1/2” ±3/8”

1 1/2” X 2 3/8”

FLOOR

SHEETROCK

RETURN AIR

DOOR FRAME

RETURN AIR

DOOR FRAME

1“ X 1” CLOSED

CELL INSULATION

1“ X 1” CLOSED

CELL INSULATION

3 1/2” ±3/8”

1 1/4”

+1/2”/-0”

1 1/4”

+1/2”/-0”

1“ X 1” CLOSED

CELL INSULATION

1“ X 1” CLOSED

CELL INSULATION

2“ X 4”

STUD

2“ X 4” STUD

RETURN AIR OPENING

FLANGE ON CABINET

RETURN AIR OPENING

FLANGE ON CABINET

SHEETROCK

RETURN AIR

DOOR FLANGE

CABINET

Note:

Finished wall and framing should not

touch the unit cabinetry.

Return Air (hinged)

Acoustical Door

The hinged acoustical door is recessed

into the wall so that the door is flush

with the surface of the wall.

The opening through the wall

for the door assembly must be

centered with the return-air

opening of the unit cabinet.

For full installing instructions

of the return-air acoustical

door, see page 12.

Dimensions

Hinged Acoustical Door

WSHP-SVN08B-EN 9

General Installation Checks

The checklist below is a summary of

the steps required to successfully in-

stall a unit. This checklist is intended to

acquaint the installing personnel with

procedures required in the installation

process. It does not replace the de-

tailed instructions called out in the ap-

plicable sections of this manual.

1 Remove packaging and inspect the

unit. Check the unit for shipping

damage and material shortage; file

a freight claim and notify appropri-

ate sales representation.

Note: The unit cabinet is packaged

in a wooden crate. A pry bar and/

or hammer will be needed for

packaging removal.

The chassis sits inside a cardboard

tray with an upper box for protec-

tion. Typically four chassis will be

shrink-wrapped to a single pallet.

2 Verify the correct model, options

and voltage from the unit name-

plate.

3 Verify the installation location of

the unit will provide the required

clearance for proper operation.

4 Remove refrigeration access panel

and inspect the unit. Be certain the

refrigerant tubing has clearance

from adjacent parts.

WARNING

Hazardous

Voltage!

Disconnect all electric power,

including remote disconnects and

discharge all motor start/run

capacitors before servicing.

Follow proper lockout/tagout

procedures to ensure the power

can not be inadvertently

energized. Failure to disconnect

power before servicing could

result in death or serious injury.

Main Electrical

5 Verify the power supply complies

with the unit nameplate specifica-

tions.

6 Inspect all control panel compo-

nents; tighten any loose connec-

tions.

7 Connect properly sized and pro-

tected power supply wiring to a

field-supplied/installed disconnect

switch and to the unit power block

(1TB1) in the unit’s cabinet control

box for equipment.

8 Install proper grounding wires to

an earth ground.

Note: All field-installed wiring must

comply with NEC and applicable local

codes.

Low Voltage Wiring (AC & DC)

Requirements

9 Connect properly sized control wir-

ing to the proper termination

points between the field supplied

thermostat and the terminal plug

in the equipment’s junction box.

Installation

10 WSHP-SVN08B-EN

FLOOR

3" SWAGE

WARNING

Improper Unit Lift!

Test lift unit approximately 24

inches to verify proper center of

gravity lift point. To avoid

dropping of unit, reposition lifting

point if unit is not level. Failure to

properly lift unit could result in

death or serious injury or possible

equipment or property-only

damage.

Unit Placement

If unit cabinet assembly includes fac-

tory provided risers, and "no" field

provided between-the-floor riser ex-

tensions, please move to Step 1.

Note: Risers are designed to accom-

modate a maximum of 1 1/2" to 3" ex-

pansion and contraction. If the total

calculated riser expansion exceeds 3",

expansion devices must be field pro-

vided.

If unit cabinet assembly includes fac-

tory provided risers and field provided

between-the-floor riser extensions are

required, install the extensions before

installing the cabinet.

1 Install drain valve, shut-off/balanc-

ing valves, flow indicators and

drain at the base of each supply and

return riser to enable system flush-

ing at start-up, balancing and ser-

vice/maintenance.

2 Lift cabinet into space while align-

ing it into the 3"swage of the riser

below.

Note: Take extra care as not to scrape

or dent risers during positioning. The

riser should fall approximately 2" into

the 3" swage. This will allow for the

variation in floor-to-floor dimensions,

and keep the riser joints from bottom-

ing out.

3 Level the cabinet.

4 Plumb risers in two planes to as-

sure proper unit operation and con-

densate drainage.

5 Anchor all units into place.

6 For field provided risers, center the

supply/return stubouts into the unit

expansion slots. The stubouts

should be perpendicular to the cab-

inet panel.

7 Verify all risers are vertical and that

they penetrate the swaged joint at

least 1". Riser should not be al-

lowed to bottom out.

8 Braze riser joints. Soft solder or

low-temperature alloys should not

be used in this application.

9 If risers are field provided, it is rec-

ommended that the risers be an-

chored to the building structure

with a minimum of one contact

point. For expansion and contrac-

tion reasons, do not fasten risers

rigidly to the building.

10 Seal access holes made through the

cabinet for piping with suitable ma-

terial to help eliminate air leakage.

11 See page 14 for system flushing.

Water Connection

For vibration isolation, it is recom-

mended that flexible steel braided

hoses be installed instead of hard pip-

ing between the vertical risers and the

unit chassis.

Trane offers 4-types of hose kit varia-

tions:

• Stainless steel braided flexible

hose with manual shut-off (ball)

valves

• Stainless steel braided flexible

hose with manual deluxe shut-off

(ball) valves

• Stainless steel braided flexible

hose with manual circuit-setter

valve

• Stainless steel braided flexible

hose with automatic balancing

valve

Additional accessories, such as a

strainer are recommended for use to

eliminate contaminants from entering

the co-axial water-to-refrigerant heat

exchangers.

Installation

Figure 2: Stacking illustration

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