Trox Technik TFCU Series Specification sheet

1
Operation and Installation Manual EN/en
Fancoil Units
TFCU/TFCUP Series
Before starting any work, read the instructions!

2Fancoil TFCU Series
TROX España
Polígono Industrial la Cartuja
E-50720 Zaragoza
Spain
Telephone nº:([phone]
E-mail: [e-mail]
Internet: http://www.trox.es
10/2020
©2020

3Fancoil TFCU Series
General information
About this manual
This operation and installation manual enables
operating or service personnel to correctly
install the TROX unit described below, and to
use it safely and eciently.
This operating and installation manual is
intended for use by tting or installation
companies, maintenance technicians,
technical sta, properly-trained persons,
qualied electricians, and climate-control
technicians.
It is essential to read and understand this
manual before starting any work. All safety
indications and instructions described in
this manual must be adhered to in order to
guarantee the working process under the
necessary safety conditions.
All applicable national regulations must be
observed.
The units can only start operating when all
their components are in perfect technical
condition. Damages produced in any of
the elements that comprise the TFCU/
TFCUP units, derived from not observing the
instructions for installation, commissioning
and maintenance, are excluded from the
guarantee by
TROX España.
All components and parts must be replaced
with original TROX TECHNIK spares.
Any changes made on the machinery or any
of its components that have not been explicitly
authorised by TROX España are also excluded
from the guarantee.
All fault or damages shall only be repaired
by specialised personnel, observing the
applicable safety regulations.
This manual must be submitted to the person
in charge of the facilities at the time when the
system is delivered. The system's owner must
keep this manual together with all the system's
documentation. The manual must be available
to be consulted at all times.
All gures included in this manual are merely
for informative purposes, and may dier from
reality.
Inspection
Upon receiving the unit, this must be visually
inspected in order to detect any damage it
might have suered during transportation.
If there are any defects, this should be noted
on the delivery note, requesting, if necessary,
an inspection by the insurance company
agents or by the carrier. TROX España should
be informed immediately of any defect.
Copyright
This document, including all illustrations,
is protected by copyright and pertains only to
the corresponding product.
Any use without prior consent shall be
considered an infringement of copyright,
and the violator may be held liable for any
damages.
This applies in particular to:
▪ Advertising contents
▪ Copyright contents
▪ Translated contents
▪ Partial copy of the contents
▪ Saving and editing contents in electronic
systems
General information

4
Online www.trox.es
Email [e-mail]
Fancoil TFCU Series
Technical Support Service
With the aim of solving faults as soon as
possible, please provide the following
information.
▪ Product name
▪ TROX order number
▪ Manufacturing date
▪ Brief description of the fault
Manufacturing Defects
For additional details regarding manufacturing
defects, please refer to the guarantees section
in TROX's general contract terms.
The manufacturer does not accept any liability
for damages resulting from:
▪ Non-compliance with this manual
▪ Misuse
▪ Operation or handling by untrained
personnel
▪ Unauthorised modications
▪ Technical changes
▪
Use of non-approved replacement parts
The actual scope of delivery may dier from
the information in this manual for bespoke
models, additional order variations, or as a
result of later technical changes.
The obligations agreed in the order, the general
terms and sale conditions, the manufacturer's
terms of delivery, and the legal regulations in
force must be adhered to.
We reserve the right to make modications.
Liability Disclaimer
For details regarding reliability defects,
please refer to TROX's general contract terms.
This information may be found at:
www.trox.es
General information

5Fancoil TFCU Series
Table of Contents
1 Components ....................................6
2 Installation and Commissioning....7
3 Hydraulic Connections ...................8
4 Electrical Connections....................9
5 TechnicalSpecications.................9
6 Fault Table ......................................10

6Fancoil TFCU Series
Unit Identication
①Housing
It contains all the unit components.
Choose from galvanised sheet steel as
standard or the optional painted nish.
②Coil
Coils are made of galvanised sheets,
copper tubes and aluminium ns, and feature
purging and draining valves. Depending on
the model, it may be formed with a single coil
or with a cooling coil plus a heating coil.
③Fan motor group
Has one or two fans depending on the
model. They are double-inlet centrifugal fans,
dynamically balanced and designed for high
performance and low noise levels.
The fan is made of synthetic material
with self-lubricated bearings, driven by
single-phase EC motors, with an adjustable
voltage of 0–10 V, Class B insulation and
built-in thermal overload protection.
④Filter
For the TFCUs, the lters can be accessed
for maintenance from the rear or from either
side.
For the TFCUPs, the lter should be
accessed for maintenance from the
connections side.
⑤Fan access cover
Screwed-on cover to access the fan section.
⑥UV lamp (only in TFCUP)
Supplied as an optional extra in the TFCUP
range. Fitted with independent terminal strips
to supply the lamp at 230 V/I/50 Hz.
⑦Filter access window
For removing the lter.
⑧Condensates tray
Screwed from the exterior, it can be easily
disassembled for cleaning.
⑨Electrical connections box
It contains fast connection terminals for 0 V,
0–10 V, 10 V power (line L, neutral N and
earth and for control), and Tacho for fans
with a tachometer for measuring rotation
speed.
⑩Cold and/or hot water
connections
The water inlet should be via the lower
headers and the outlet via the upper headers.
There is only one coil for 2T installations,
and two coils for 4T installations.
The connections closest to the air inlet are for
cold water, while the connections closest to
the air outlet are for hot water.
⑪Connection nozzle
For connecting the induction tube,
integrated in the unit’s housing.
UnitIdentication

7
10 mm
① ② ③ ④ ④
⑥⑧ ⑤ ⑤⑨ ⑨⑪⑪ ⑩⑩ ⑧ ⑦
③②①
Fancoil TFCU Series
TFCU units must be installed horizontally.
In any case, units must never be installed in:
▪ Extreme humidity areas (such as
swimming pools)
▪ Areas exposed to open weather
▪ Areas with high levels of dust
▪ Areas with explosion hazards
Installation and Commissioning
Installation and Commissioning
For installation in false ceilings, the unit shall
be suspended with threaded rods, held with
nuts to the brackets on the Fancoil housing.
To ensure the correct drainage of the unit's
condensate, it must be installed with an
incline of 10 mm, as specied in the attached
diagram.
Components
TFCUP
Components
TFCU
Approximate images of units

8Fancoil TFCU Series
Hydraulic connections
Hydraulic connections
Hydraulic connections are located on the right or
left-hand side of the unit's coil, depending on the
reference. The unit drains solely by the eects
of gravity, with no additional pumps. Therefore,
an adequate decline must be guaranteed in
the drain pipes in order to prevent water from
overowing.
Fluid will always enter via the lower manifold
and come out via the upper manifold. Once the
connection has been made, the coil must be
purged using its built-in purgers.
To prevent irreversible damage, the hydraulic
connection with the coils must be made
without transmitting torque to the coil's
manifold.To do this, perform a locknut
operation using the appropriate torque.
Right side Right side
Left side Left side
Fancoil Units
TFCU/TFCUP 2 tubes
Fancoil Units
TFCU/TFCUP 4 tubes

9Fancoil TFCU Series
Electrical Connections
Electrical Connections
All electrical connections must be made
by qualied personnel, in accordance with
applicable regulations and with Low-Voltage
Regulations.
Only copper conductors must be used in order
to prevent galvanic corrosion and/or the contact
point from overheating.
Before connecting the unit, disconnect from the
mains. Connect the unit with protective earthing.
TROX España shall not be held responsible for
incorrect electrical connections.
Units have been designed to work exclusively
with a nominal supply voltage of 230 V, 50/60Hz
single-phase, and a control voltage of 0-10 V.
TFCUP Size
Battery type 1 2 3 4 4,5 5 6 7
Cold/hot 2 TP 0,8 1,2 1,3 1,7 2,2 2,0 2,5 2,9
Cold 4 TP 0,8 1,2 1,3 1,7 2,2 2,0 2,5 2,9
4 TD 1,1 1,6 1,8 2,2 2,8 2,7 3,4 3,9
Hot 4 TP - TD 0,3 0,4 0,4 0,6 0,6 0,7 0,8 1,0
TFCU
Coils inner volume (l) Size
Battery type 1 2 2,5 3 4 5
Cold/hot 0,8 1,2 1,2 1,3 1,7 2,0
Hot 0,3 0,4 0,4 0,4 0,6 0,7
TechnicalSpecications
TFCU/TFCUP fan coil units have been designed
to work under the following operating conditions:
▪ Heat-transfer uid: Water or glycols
(ethylene or propylene) at a maximum
concentration of 60%.
▪ Temperature range for the heat-transfer uid:
5–95 °C.
▪ Air temperature range: 1–40 °C.
▪ Maximum operating pressure for the coils:
16 bar/95 °C.
▪ Supply voltage: 230 V, 50/60 Hz.

10 Fancoil TFCU Series
Fault Table
IOM/TFCU/EN/3 © TROX España (08/2021)
Anomaly detected Possible cause Action
The motor does not start
The supply voltage does not reach
the unit
The control voltage does not reach
the unit
Check the electrical installation for
power and control
Fan motor group failure Request installer intervention
The unit’s performance is
lower than expected
The unit’s air inlets and/or outlets
are obstructed
Remove the obstructing objects,
and clean the unit
The uid temperatures entering the
coil are not as expected
Supply uid at the right
temperature
Dirty lter Clean or replace
The installation load loss is higher
than expected
Verify the load loss in the
installation air
The unit leaks water The condensates tray overows Verify that the drains are not
obstructed
Verify that the unit is installed with
the correct inclination
Incorrect hydraulic circuit
connection
Request installer intervention
Damaged battery
Excessive noise of the unit The unit’s air inlets and/or outlets
are obstructed
Remove the obstructing objects,
and clean the unit
Fan motor group failure Request installer intervention
Fault Table