Trane FWD 08 Manuale del proprietario

Ductable water unit

FWD 08 - 12 - 20 - 30 - 45

Installation

Operation

Maintenance

FWD-SVX01D-E4

2FWD-SVX01D-E4

General Information

eception

When the unit arrives on site, check it

has not been damaged in any way

during transport. If damage is

observed, or even merely suspected,

notify the carrier within 24 hours by

registered letter. Notify the local Trane

Sales office at the same time.

The unit should be totally inspected

within 3 days of delivery. If damage is

observed, notify the last carrier by

registered letter and notify the local

sales office.

Warnings and cautions

Warnings and Cautions appear at

appropriate places in this instruction

manual. Your personal safety and the

proper operation of this machine

require that you follow them

carefully. Trane assumes no liability

for installations or servicing

performed by unqualified personnel.

WA NING! : 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 or

for equipment or property-damage-

only accidents.

Foreword

These installation, operation and

maintenance instructions are given

as a guide to good practice in the

installation, putting into service,

operation and periodic maintenance

by the user of FWD units.

They do not contain full service

procedures necessary for the

continued successful operation of this

equipment. The services of a qualified

service technician should be

employed through the medium of a

maintenance contract with a

reputable service company.

Warranty

Warranty is based on the general

terms and conditions of the

constructor. The warranty is void if the

equipment is modified or repaired

without the written approval of the

constructor, if the operating limits are

exceeded, or if the control system or

the electrical wiring is modified.

Damage due to misuse, lack of

maintenance, or failure to comply

with the manufacturer's instructions,

is not covered by the warranty

obligation.

If the user does not conform to the

rules of chapter " aintenance", it

may entail cancellation of warranty

and liabilities by the constructor.

FWD-SVX01D-E4

General Information

Safety recommendations

To avoid accidents and damage, the

following recommendations should

be observed during maintenance

and service visits:

1. The maximum allowable

pressures for system leak testing

on low and high pressure side are

given in the chapter “Installation”.

Always provide a pressure

regulator.

2. Disconnect the main supply

before any servicing on the unit.

3. Service work on the refrigeration

system and the electrical system

should be carried out only by

qualified and experienced

personnel.

Maintenance contract

It is strongly recommended that you

sign a maintenance contract with

your local Service Agency. This

contract provides regular

maintenance of your installation by a

specialist in our equipment. Regular

maintenance ensures that any

malfunction is detected and

corrected in good time and

minimizes the possibility that serious

damage will occur. Finally, regular

maintenance ensures the maximum

operating life of your equipment. We

would remind you that failure to

respect these installation and

maintenance instructions may result

in immediate cancellation of the

warranty.

Training

The equipment described in this

manual is the result of many years of

research and continuous

development. To assist you in

obtaining the best use of it and

maintaining it in perfect operating

condition over a long period of time,

the manufacturer has at your

disposal a refrigeration and air

conditioning service school. The

principal aim of this is to give

operators and technicians a better

knowledge of the equipment they

are using, or that is under their

charge. Emphasis is particularly

given to the importance of periodic

checks on the unit operating

parameters as well as on preventive

maintenance, which reduces the cost

of owning the unit by avoiding

serious and costly breakdown.

Contents

General Information 2

Foreword 2

Warranty 2

Reception 2

Warnings and cautions 2

Safety recommendations 3

aintenance contract 3

Training 3

Installation 5

Introduction 5

Technical data 6

Ceiling installation 7

Installation on the ground 7

Condensate drainage 8

Electrical connections 8

ain power supply 9

Duct connections 10

Diagrams 9

Operation / Maintenance 16

Choice of fan speed 16

Initial checks 16

aintenance recommendations 16

Maintenance 17

Removal of the fan motor 17

Troubleshooting 18

4FWD-SVX01D-E4

FWD-SVX01D-E4

Installation

Introduction

Caution. Read this manual

carefully before starting to install

the system.

Components supplied with the unit

- 2 corner brackets to suspend the

unit from the ceiling

Electrical connections

- The electrical wiring and

connections must comply with

local electricity legislation.

- Check the electrical

characteristics on the name plate

correspond to the grid’s

characteristics.

Warning. Never open the

electrical panel without first

disconnecting the power supply.

There is a risk of electrocution!

Handling the unit

Warning! Wear protection gloves

when handling the unit. When

removing the unit from its pallet,

do not handle it by pipes,

spigots, valves, drain pan or

control panel. Take precaution

to not damage the unit.

Description of the unit

The FWD unit is a slim discharge

cabinet unit for installation in false

ceilings, lofts and ventilation

spaces.

It is designed for horizontal

installation with discharge via a

duct (see selection catalogue for the

available static pressure).

The unit’s structure consists of

unpainted completely insulated

galvanised steel panels.

➀

➁

➂

➃

➀Hot water coil

➁Fan unit

➂Control / power cabinet

➃Water inlet and outlet screw-in connections

Figure 1 : Description

6FWD-SVX01D-E4

Installation

(1) Conditions: Water entering/leaving temperature: 7/12 °C, Air inlet temperature 27/19°C DB/WB - Nominal air flow

(2) Conditions: Water entering/leaving temperature: 50/45 °C,,Air inlet temperature 20°C DB - Nominal air flow

(3) At high speed with nominal air flow.

(4) Water entering/leaving temperature 90/70 °C, air inlet temperature 20 °C DB, Nominal air flow.

(5) A rectangular glass wool duct 1m50 long is placed on the blower.The measurement is taken in the room containing the blower unit.

Heat exchanger operating limits:

FWD :

- Water temperature: max 100° C

- Absolute service pressure: min 1 bar / max 11 bars

Accessories - Hot water coil:

- Water temperature: min. +2° C / max. 100° C

- Absolute service pressure: min 1 bar / max 11 bars

TECHNICAL DATA

FWD 08 12 20 30 45

Power supply (V/Ph/Hz) 230/1/50

Capacities

Cooling capacity on water (1) (kW) 5,2 8,3 15 18,8 30,1

Heating capacity on water (2) (kW) 6,3 11,9 18,9 20,9 38,2

Fan motor (type) 2 x direct drive centrifugal

Fan power input (3) (kW) 0,23 0,46 0,65 1,04 1,51

Current amps(3) (A) 1,1 2,2 3,1 4,7 5,5

Start-up amps (A) 3,2 5,5 9,3 14,1 16,5

Rated Input Power (W) 246 516 707 1100 1815

Airflow

minimum (m3/h) 490 980 1400 1800 2700

nominal (m3/h) 820 1650 2300 3000 4500

maximum (m3/h) 980 1970 2600 3600 5400

Main coil

Water entering/leaving connections (type) ISO R7 rotating female

(Dia) 3/4" 3/4" 1"1/2 1"1/2 1"1/2

Hot water coil (accessory for blower only)

Heating capacity (4) (kW) 6,3 12 17,4 22,4 34,5

G2 filter (filter box accessory)

Quantity 22222

Dimensions ( LxWxth) (mm) 386x221x8 486x271x8 586x321x8 586x421x8 586x621x8

G4 filter (filter box accessory)

Quantity -2 2222

Dimensions ( LxWxth) (mm) - 486x264x48 586x314x48 586x414x48 586x614x48

Condensate pump (accessory) (type) Centrifugal

Water flow - lift height (l/h - mm) 24 - 500

Not available for FWD30 and FWD45

Sound level (L/M/H speed)

Sound pressure level (5) (dB(A)) 36/40/43 38/41/44 46/50/53 47/52/57 47/52/58

Sound power level (5) (dB(A)) 46/50/53 48/51/54 56/60/63 57/62/67 57/62/68

Unit dimensions

Width x Depth (mm) 890 x 600 1090 x 710 1290 x 820 1290 x 970 1290 x 1090

Height (mm) 250 300 350 450 650

Shipped unit dimensions

Width x Depth (mm) 933 x 644 1133 x 754 1333 x 864 1333 x 1008 1333 x 1133

Height (mm) 260 310 360 460 660

Weight (kg) 32 46 61 76 118

Colour galvanised steel

ecommended fuse size

Unit alone (a /gI) (A) 8/16 8/16 8/16 8/25 8/25

FWD-SVX01D-E4

It is possible to avoid using the 2

angle brackets B supplied with the

unit and mount it using just the

threaded rods D and the 2 shaped

bars E. In both cases isolators can be

installed between the nuts C and the

angle brackets B or shaped bars E, to

reduce transmission of vibrations to

the building’s structure.

Warning. Since the condensate

tray is sloped to facilitate flow of

condensates, the unit must be

positioned absolutely level in both

directions.

Installation on the ground

The unit can be installed on the

ground, but make sure the

condensate can be drained properly.

Ensure it is installed on vibration

isolators and that it is level in both

directions.

Hydraulic connections

It is easy to remove the electric

cabinet to facilitate access to the

hydraulic connections. Operating

limits of pressure must not exceed

1.5 Pa.

Installation procedure

- Define the layout of the lines so

that they are as short as possible.

- Limit pressure losses in the lines

caused by pinching, too many

bends and bending radii that are

too small.

- Connection of water inlet and out-

let lines:

The coil is connected by means of

3/4” female ISO R7 connectors.

Warning. Limit the tightening

torque applied to the connector

nuts to prevent deformation of the

piping and seals (risk of leaks).

Installation

Ceiling installation

Preparation of the ceiling and

installation of the unit

A template for drilling into the ceiling

to fix the threaded rods is printed on

the cover of the unit’s packaging.

The angle brackets can also be used

to determine the drilling hole

distances.

Access must be provided on the

water connection end to facilitate

installation, maintenance and access

to the cabinet.

Four 8 mm diam. threaded rods must

be securely fixed into the building’s

slab or structure. Screw a nut A

(Figure 2) sufficiently high onto each

threaded rod. Put the angle brackets B

in place by holding them using a

second nut C. ake sure the angle

brackets are level in both directions

using the bottom nuts C. Once they

are perfectly level insert the FWD unit

and let the angle brackets support it.

Use the top nuts A to tighten the unit

against the corner brackets.

➀

Figure 2 : Angle brackets

Figure 3 : ecommended clearances

8FWD-SVX01D-E4

Installation

Electrical connections

If access to the electric cabinet is

problematic, it can be moved a

maximum distance of 500 mm.

All wiring and earthing must comply

with local standards.

Caution

a) Check the electrical characteristics

on the unit’s name plate. ake

sure the wiring corresponds to the

manufacturer’s electrical diagram

and local standards.

b) Power up the units using one or

more lines protected by a

disconnect switch and fuses.

c) Earth each unit.

d) The wires must not touch the

refrigerant lines, the motors or

other moving parts.

e) The manufacturer does not

assume any liability for problems

caused by modifications to the

unit’s internal wiring.

f) Tighten the terminals securely.

Figure 4 : Connection of the condensate drain

Figure 5 : Moving the electric cabinet

Condensate drainage

The unit must be perfectly horizontal

in both directions. Connect the

condensate tray outlet (outer diam.

20 mm).

To ensure satisfactory condensate

drainage, the drainage tube must be

sloped 10°. There must not be a

condensate trap anywhere on the

line. However a siphon can be

provided to prevent outside air being

drawn in by the indoor unit. If the pipe

passes through a room, insulate it to

prevent damage caused by

condensation. We recommend

polyethylene foam (6 mm thick).

Condensate pump (accessory)

If it is not possible to drain the

condensates by gravity, a

condensate pump can be installed as

an accessory .

It can lift the condensates a

maximum of 500 mm. For installation

and connection of the condensate

pump, refer to the submittals

supplied with this accessory.

FWD-SVX01D-E4

Installation

Main power supply

It is the installer's responsibility to

ensure that units are protected by an

electrical disconnect device such as a

fuse or circuit breaker. Standard

units are supplied without any

protection. The recommended fuse

size is given in the Technical data

table.

All electrical connections must be

made on the terminal blocks of the

main electrical control box.

WA NING ! Disconnect the power

supply before making electrical

connections. Failure to do so may

cause serious injuries as well as

irreversible damage to certain

electrical components.

WA NING! Use copper

conductors only. Unit terminals

are not designed to accept other

types of wiring. Aluminium or

other materials could lead to

galvanic corrosion or overheating

at the contact point thus

damaging the unit. The

customer's electrical connections

must comply with current

standards.

FWD units manufactured by Trane

comply with CEI regulations.

All power supply wiring must be

sized and selected in accordance

with local code and regulation.

Fast-acting circuit breaker, which is

sensitive to very low levels of current

leakage to ground (max 30mA) must

be installed as a general line

protection.

Only copper conductors ( in.

1.5mm2- ax 4.0mm2) must be used

as unit terminals are not designed to

accept other types of wiring.

For electrical connections of options or accessories, refer to following

diagrams which are supplied with corresponding option/accessory:

otorized water valve for FWD sizes 08-20: 44053756

Valve (Hot water coil): 44053759

Automatic change over kit: 23090607

Lift pump control kit: 44053753

otor connections for FWD sizes 8-20: 23078700

otor connections for FWD sizes 30-45: 23090686

Interconnections diagram: 23090605

otorized water valve for FWD sizes 30-45: 44054611

10 FWD-SVX01D-E4

Installation

Duct connections

FWD units can be fitted directly with

rectangular discharge and intake

ducts.

Warning.The pressure loss caused

by the duct network and

accessories must not exceed the

unit’s available static pressure (see

selection chart).

The air intake can be located at the

back of the unit ➀or underneath it ➁.

DIMENSIONS OF DUCT CONNECTIONS

(INTAKE AND DISCHA GE)

Sizes 08 12 20 30 45

Length 748 948 1148 1148 1148

Width 198 248 298 598 598

Filtering: vital to ensure the unit runs

smoothly.

No filters are supplied with the unit,

but they can be ordered as

accessories:

- Filter box with EU2 filters to fix to

the unit’s intake.

(behind or underneath).

➁

➀

Figure 6 : Connection of ducts

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