Flexiheat LEO S1 Guide

LEO
S1 I S2 I S3 / BMS
L1 I L2 I L3 / BMS
XL2 I XL3 / BMS
(INOX / ST)
FAN HEATER
TECHNICAL DOCUMENTATION OPERATION MANUAL

TABLE OF CONTENTS
1. Application ...............................................................................................4
2. Technical Data.........................................................................................5
3. Installation ...............................................................................................8
3.1. Installation –bracket..........................................................................8
3.2. Assembly instructions .......................................................................8
3.3. U-Profiles..........................................................................................8
4. Connection diagrams ...............................................................................9
5. Start-Up and Operation ..........................................................................11
6. Service and warranty terms....................................................................15
7. Conformity with WEEE directive 2012/19/UE .........................................17

LEO heaters make up a decentralised heating system. The air
streaming through the heat exchanger filled with hot water is warmed
up. Fan heaters are used for heating large volume buildings: general,
industrial and public buildings etc.
The casing of LEO heaters is made from extended polypropylene EPP.
LEO in special version ST has a casing made from powder coated steel.
The devices LEO in special version INOX have casing and air blades
made of austenitic stainless steel.
The devices are designed for indoor use where maximum air dustiness
does not exceed 0,3 g/m
3
. Units are built using copper, aluminum and
galvanized steel. It is prohibited to install units in the areas where
environment inside can causes in rusting. The devices can not be used
in an environment where there is oil mist.
Water heat exchanger could be supply by water or glycol solution up to
60%.
1. APPLICATION

LEO S1 | S2 | S3 / BMS LEO S1 INOX / ST | S2 INOX / ST | S3 INOX / ST
LEO S1 LEO S2 LEO S3
2300 1900 1500 2000 1600 1250 1800 1400
1000
230/50
0,5 0,4 0,3 0,6 0,4 0,3 0,6 0,4 0,3
120 90 70 130 90 70 130 90 70
54 /F
56,3 50,7 43,9 56,3 50,7 43,9 56,3 50,7 43,9
16,0 13,0 10,0 14,0 11,0 8,5 12,5 9,5 7,0
6,0 5,1 4,1 5,3 4,4 3,5 4,9 3,9 2,9
120 (INOX / ST: 130)
1,6
1/2”
60
9,5 (INOX: 13,1, ST: 13,1) 10,4 (INOX: 13,8, ST: 13,8) 10,8 (INOX: 14,3, ST: 14,3)
10,2 (INOX: 13,8, ST: 13,8) 11,6 (INOX: 14,0, ST: 14,0) 12,2 (INOX: 15,7, ST: 15,7)
Speed III II I III II I III II I
Max airflow [m
3
/h ]
Power supply [V/Hz]
Max current consumption [A]
Max power consumption [W]
IP/ Insulation class
Max acoustic pressure level [dB(A)]*
Vertical range*** [m]
Max heating water temperature [
o
C]
Horizontal range** [m]
Max operating pressure [MPa]
Connection
Installation Indoor
Max working temperature [
o
C]
Device mass [kg]
Mass of device filled with water [kg]
* Acoustic pressure level has been measured 5m from the unit in a 1500m3 space with a medium sound absorption coefficient
** Horisontal isothermal range for 0,5 m/s border air stream speed
*** Vertical nonisothermal range for ΔT = 5oC and for 0,5 m/s border air stream speed
2. TECHNICAL DATA

LEO L1 | L2 | L3 / BMS LEO L1 INOX / ST | L2 INOX / ST | L3 INOX / ST
LEO L1 LEO L2 LEO L3
4250
2800 1700 3800 2400 1400 3400 2100 1200
230/50
1,4 1,2 0,6 1,5 1,2 0,6 1,5 1,2 0,6
330 240 120 340 240 120 340 240 120
54 /F
64,1 54,5 42,1 64,1 54,5 42,1 64,1 54,5 42,1
24,0 15,0 9,5 21,5 13,0 8,0 19,0 11,5 6,5
8,3 5,6 3,7 7,5 4,9 3,1 6,8 4,4 2,8
120 (INOX / ST: 130)
1,6
3/4”
60
14,9 (INOX: 19,4, ST: 19,4) 16,2 (INOX: 20,8, ST: 20,8) 17,8 (INOX: 22,7, ST: 22,7)
15,9 (INOX: 20,4, ST: 20,4) 18,2 (INOX: 22,8, ST: 22,8) 20,5 (INOX: 25,4, ST: 25,4)
Speed
III II I III II I III II I
Max airflow [m
3
/h ]
Power supply [V/Hz]
Max current consumption [A]
Max power consumption [W]
IP/ Insulation class
Max acoustic pressure level [dB(A)]*
Horizontal range** [m]
Vertical range*** [m]
Max heating water temperature [
o
C]
Max operating pressure [MPa]
Connection | Przyłącze
Installation
Max working temperature [
o
C]
Device mass [kg]
Mass of device filled with water [kg]
Indoor
* Acoustic pressure level has been measured 5m from the unit in a 1500m3 space with a medium sound absorption coefficient
** Horizontal isothermal range for 0,5 m/s border air stream speed
*** Vertical nonisothermal range for ΔT = 5oC and for 0.5 m/s border air stream speed
2. TECHNICAL DATA

LEO XL2 | XL3 / BMS LEO XL2 INOX / ST | XL3 INOX / ST
LEO XL2 LEO XL3
5800 4600 2900 5300 4100 2500
230/50
2,3 1,8 1,4 2,4 1,8 1,4
520 370 270 550 370 270
54 /F
67,5 61,1 52,3 67,5 61,1 52,3
26,0 20,5 13,0 23,5 18,0 11,0
8,5 7,0 4,7 7,7 6,2 4,1
120 (INOX / ST: 130)
1,6
60
23,2 (INOX: 29,9, ST: 29,9) 26,2 (INOX: 34,2, ST: 34,2)
25,9 (INOX: 32,6, ST: 32,6) 30,3 (INOX: 38,3, ST: 38,3)
Speed III II I III II I
2. TECHNICAL DATA
Max airflow [m
3
/h ]
Power supply [V/Hz]|
Max current consumption [A]
Max power consumption [W] |
IP/ Insulation class
Max acoustic pressure level [dB(A)]*
Horizontal range** [m]
Vertical range*** [m]
Max heating water temperature [
o
C]
Max operating pressure [MPa]
Connection 3/4”
Max working temperature [
o
C]
Device mass [kg]
Mass of device filled with water [kg]
Installation Indoor
* Acoustic pressure level has been measured 5m from the unit in a 1500m3 space with a medium sound absorption coefficient
** Horisontal isothermal range for 0,5 m/s border air stream speed
*** Vertical nonisothermal range for ΔT = 5oC and for 0,5 m/s border air stream speed

S1 S2 S3 L1 L2 L3 XL2 XL3
A <3,0 <3,0 <3,0 2,5-8,0 2,5-8,0 2,5-8,0 2,5-8,0 2,5-8,0
B 2,5-7,0 2,5-6,0 2,5-6,0 2,5-9,5 2,5-8,5 2,5-8,0 2,5-9,5 2,5-9,0
C >0,3 >0,3 >0,3 >0,3 >0,3 >0,3 >0,3 >0,3
D >0,5 >0,5 >0,5 >0,5 >0,5 >0,5 >0,5 >0,5
Fan heaters can be
mounted to vertical or
horizontal partitions in any
position. During the
montage, the minimal
distances from the walls
and ceiling have to be
kept.
U-profiles should be mounted in corners as drawing
shows. Is not allowed to screw profiles in other
places.
!!!
3. INSTALLATION
3.1. INSTALLATION –BRACKET
3.2. ASSEMBLY INSTRUCTIONS
M8 screws are in set with bracket
3.3 U-PROFILES (optional)

| 9
SRQ3d
4. CONNECTION DIAGRAMS

4. CONNECTION DIAGRAMS 4. SCHEMATY PODŁĄC EŃ
4. AANSLUITSCHEMA'S 4. СХЕМЫ ПОДКЛЮЧЕНИЯ
BMS
have to binary set addresses on each (each DRV must have individual
address) DRV module by DIP-switch SW1. To address modules check if
the power supply is turned off, than set then the addresses as shown in the
table, than turn on the power supply .|
one T-box controller .|
System). |
WARNING: The connection must be carried out with 3-wire (recommended
UTP) to connectors DRV IN
BMS /
BS
It is possible to connect up to 31 modules DRV and control them with
DRV modules can be connected to the BMS (Building Management
When connecting DRV modules to the T-box controller or BMS, you

5
.
START
-
UP AND OPERATION
Guidelines for System Connection
 The connection should be executed in a way which does not induce
stresses.
 It is recommended to install vent valves at the highest point of the
system.
 The system should be executed so that, in the case of a failure, it is
possible to disassemble the device. For this purpose it is best to use
shut-off valves just by the device.
 The system with the heating medium must be protected against an
increase of the heating medium pressure above the permissible value
(1.6 MPa).
 While screwing exchanger to pipeline - connecting stubs has to be hold
by wrench.
Start Up
 Before connecting the power supply check the correctness of connection
of the fan motor and the controllers. These connections should be
executed in accordance with their technical documentation.
 Before connecting the power supply check whether the mains voltage is
in accordance with the voltage on the device data plate.
 Before starting the device check the correctness of connection of the
heating medium conduits and the tightness of the system.
 The electrical system supplying the fan motor should be additionally
protected with a circuit breaker against the effects of a possible short-
circuit in the system.
 Starting the device without connecting the ground conductor is forbidden.
Operation
 The device is designed for operation inside buildings, at temperatures
above 0
o
C. In low temperatures (below 0ºC) there is a danger of freezing
of the medium.
The manufacturer bears no responsibility for damage of the heat
exchanger resulting from freezing of the medium in the exchanger. If
operation of the device is expected at temperatures lower than 0º, then
glycol solution should be used as the heating medium, or special
automatic systems should be used for protecting against freezing of the
medium in the exchanger.
It is forbidden to place any objects on the heater or to hang any objects
on the connecting stubs.
 The device must be inspected periodically. In the case of incorrect
operation of the device it should be switched off immediately.
It is forbidden to use a damaged device. The manufacturer bears no
responsibility for damage resulting from the use of a damaged device.
 If it is necessary to clean the exchanger, be careful not to damage the
aluminium lamellas.
 For the time of performing inspection or cleaning the device, the electrical
power supply should be disconnected.
 In case water is drained from the device for a longer period of time, the
exchanger tubes should be emptied with compressed air.
 It is not allowed to make any modification in the unit. Any modification
causes in warranty loss.

Periodic inspections
To keep proper technical parameters Flowair recommends periodic
service (every 6 months) of fan heaters on behalf of the user.
During inspections user should:
 Check heat exchanger, if is it filled with dirt or dust. If necessary - use
pressurized air stream to clean the exchanger’s lamellas,
 Check heat exchanger, if is it filled with dirt or dust. If necessary - use
pressurized air stream to clean the exchanger’s lamellas,
 Check fan blades, in case of dirt use damp cloth and remove dirt,
 Check bracket installation,
 Check heat exchanger and hydraulic connection correctness,
 Check wires insulation,
 Check power supply,
 Check medium flow,
 Check levelling of the unit.

6. SERVICE AND WARRANTY TERMS
Please contact your dealer in order to get acquitted with the
warranty terms and its limitation.
In the case of any irregularities in the device operation, please contact
the manufacturer’s service department.
The manufacturer bears no responsibility for operating the
device in a manner inconsistent with its purpose, by persons not
authorised for this, and for damage resulting from this!

7. CONFORMITY WITH WEEE DIRECTIVE 2012/19/UE
Running a business without harming the environment and observing
the rules of proper handling of waste electrical and electronic
equipment is a priority for FLOWAIR.
The symbol of the crossed out wheeled bin placed on the
equipment, packaging or documents attached means that the
product must not be disposed of with other wastes. It is the
responsibility of the user to hand the used equipment to a
designated collection point for proper processing. The symbol
means at the same time that the equipment was placed on the
market after August 13, 2005.
For information on the collection system of waste electrical and
electronic equipment, please contact the distributor.
R E M E M B E R :
Do not dispose of used equipment together with other waste! There
are financial penalties for this. Proper handling of used equipment
prevents potential negative consequences for the environment and
human health. At the same time, we save the Earth's natural
resources, reusing resources obtained from the processing of
equipment.

www.flowair.com | 19
Deklaracja zgodności / Declaration Of Conformity / Conformiteitsverklaring / Декларация осоответствии
FLOWAIR
ul. Chwaszczyńska 135, 81-571 Gdynia
tel. [phone], fax: [phone]
e-mail: [email protected] www.flowair.com
FLOWAIR Nederland
Kantoor: Minervum 7268, 4817 ZM Breda, The Netherlands
tel. +31(0)76 - 581 53 11, fax. +31(0)76 - 587 22 29
e-mail: [e-mail] ; www.flowair.nl
Niniejszym deklarujemy, iżwodne nagrzewnice powietrza / FLOWAIR hereby confirms that heating unit / FLOWAIR verklaart
hierbij dat verwarmingsunits / Компания FLOWAIR д клариру т, что водяны воздухонагр ват ли:
•LEO: S1, S1 BMS, S2, S2 BMS, S3, S3 BMS, (ST/INOX)
•LEO: L1, L1 BMS, L2, L2 BMS, L3, L3 BMS, (ST/INOX)
•LEO: XL2, XL2 BMS, XL3, XL3 BMS, (ST/INOX)
zostały wyprodukowane zgodnie z wymaganiami następujących Dyrektyw Unii Europejskiej /
were produced in accordance to the following Europeans Directives / zijn geproduceerd in overeenstemming met de volgende
Europese Richtlijnen / произв д ны согласно тр бованиям Дир ктива Европ йского Союза :
1. 2014/30/UE – Kompatybilności elektromagnetycznej / Electromagnetic Compatibility (EMC) / Elektromagnetische
compatibiliteit (EMC) / Электромагнитная совместимость (ЭМС) технических средств,
2. 2006/42/WE – Maszynowej / Machinery / Machine / Машины иМеханизмы,
3. 2014/35/UE – Niskonapięciowe wyroby elektryczne / Low Voltage Electrical Equipment (LVD) / Laagspanningsrichtlijn
(LVD) / Низковольтное оборудование (LVD),
4. 2009/125/WE – Produkty związane z energią/ Energy-related products (ErP 2015) / Richtlijn energiegerelateerde
producten (ErP 2015) / Эн ргопотр бляющи продукты
oraz zharmonizowanymi z tymi dyrektywami normami / and harmonized norms ,with above directives /en geharmoniseerde
normen, met de bovenstaande richtlijnen / атакж всо дин нии сданными дир ктивами стандартами
PN-EN ISO 12100:2012 Bezpieczeństwo maszyn -- Ogólne zasady projektowania -- Ocena ryzyka i zmniejszanie ryzyka /
Safety Of Machinery - General Principles For Design - Risk Assessment And Risk Reduction /
Veiligheid van Machines - Basisbegrippen voor ontwerp - Risicobeoordeling en risicoreductie /
Б зопасность машин – Общи принципы про ктировки – Оц нка риска иум ньш ни риска.
PN-EN 60204-1:2018-12 Bezpieczeństwo maszyn — Wyposażenie elektryczne maszyn — Część 1: Wymagania ogólne /
Safety of machinery − Electrical equipment of machines − Part 1: General requirements / Veiligheid
van machines - Elektrische uitrusting van machines - Deel 1: Algemene eisen / Б зопасность
машин. Эл ктрооборудовани машин им ханизмов.
Часть 1. Общи тр бования.
PN-EN 60034-1:2011 Maszyny elektryczne wirujące – Część 1: dane znamionowe i parametry / Rotating electrical
machines — Part 1: Rating and performance / Roterende elektrische machines - Deel 1:
Beoordeling en prestatie / Вращающи ся эл ктрич ски машины. Номинальны данны и
характ ристики.
PN-EN 61000-6-2:2008 Kompatybilność elektromagnetyczna. Część 6-2: Normy ogólne. Odporność w środowiskach
przemysłowych / Electromagnetic compatibility (EMC). Generic standards. Immunity for industrial
environments / Elektromagnetische compatibiliteit (EMC). Algemene normen Immuniteit voor
industriële omgevingen / Эл ктромагнитная совм стимость (ЭМС) - Часть 6-2: Общи стандарты -
Пом хоустойчивость для промышл нных обстановок.
Gdynia, 14.01.2019
Product Manager

20 |
COMMISSION REGULATION (EU) 2016/2282
Information relevant for disassembly, recycling and/or disposal at end-of-life:
Unassembly should be carried out by a person with appropriate authorizations. After disassembly, waste should be segregated:
housing: made of EPP or steel or INOX - recyclable
heat exchanger: copper, aluminum, steel - recyclable
fan: dispose of in accordance with the rules for the disposal of electrical equipment"
Unit name: LEO
Capacity control: 3-speed
Model
Item
Symbol
Value
Unit
LEO S1
Heating
capacity P
rated,h
2,7**
kW
LEO S2 5,7**
LEO S3 7,0**
LEO L1 6,9**
LEO L2 10,8**
LEO L3 13,9**
LEO XL2 20,2**
LEO XL3 25,7**
** heating capacity for parameters: inlet water temp. 45°C, water
temperature drop 5°C, room air temp. 20°C.
Model
Item
Symbol
Value
Unit
LEO S1
Total
electric
power input
P
elec
0,12
kW
LEO S2 0,13
LEO S3 0,13
LEO L1 0,33
LEO L2 0,34
LEO L3 0,34
LEO XL2 0,52
LEO XL3 0,55
Model
Item
Symbol
Value
Unit
LEO S1
Sound
power level
L
WA
71,4
dB
LEO S2 71,4
LEO S3 71,4
LEO L1 79,2
LEO L2 79,2
LEO L3 79,2
LEO XL2 82,6
LEO XL3 82,6