Winterwarm EH5 User manual

EH - en - v1.0 - 06 / 2021
INSTALLATION MANUAL
AIR HEATER
TYPE EH

Content
1 Introduction 3
1.1 Symbols used in this manual 3
1.2 Warranty 3
2 Safety instructions 4
2.1 Installation 4
2.2 Use 4
2.3 Maintenance & Cleaning 4
2.4 Children and vulnerable users 4
3 Technical specifications 5
3.1 Performance 5
3.2 Dimensions 5
4 Installation 6
4.1 Preparation 6
4.2 Positioning the air heater 6
4.3 Electrical connection 8
4.4 Room thermostat 8
5 Operating the air heater 10
5.1 Minimum firing time 10
5.2 Delta-T-regulation 10
5.3 Summer ventilation 10
5.4 Overheating protection 10
6 Commissioning the air heater 11
6.1 Adjusting the settings 11
6.2 Commissioning the air heater 11
7 Troubleshooting 12
7.1 Volatile lock outs 12
7.2 Temporary errors 12
7.3 Warnings 12
7.4 Instructions 13
8 Maintenance 14
8.1 Preparation 14
8.2 Basic maintenance 14
9 Electrical wiring diagram 15
10 Exploded view and spare parts 16
11 Disposal and recycling 17
12 Declaration of conformity 17

3INSTALLATION MANUAL AIR HEATER TYPE EH
1 Introduction
This manual is intended for the gas, electrical and
mechanical installer.
This document gives instructions on how to use and
maintain the air heater. It is most important to follow the
instructions in this document for safe operation of this air
heater.
It is important to read this document before starting the
installation process. Store this document close to the air
heater for quick reference.
1.1 Symbols used in this manual
DANGER! Indicates a dangerous situation that would lead
to death or severe injury.
WARNING! Indicates a potentially dangerous situation
that could lead to death, severe injury or serious product
damage.
CAUTION! Indicates a potentially dangerous situation
that could lead to injury or product damage.
NOTICE Indicates important information that is not
directly related to safety.
1.2 Warranty
NOTICE Using, installing or maintaining this air heater in
any other way than described in this manual may cause
damage that voids the warranty.
NOTICE Failing to follow the safety instructions in this
manual can lead to damage to the air heater or the
installation and void the warranty.

4
2 Safety instructions
Always follow the safety instructions in this chapter when
installing, using or performing maintenance on this air
heater:
2.1 Installation
CAUTION! This air heater must be installed and
maintained by an authorized, qualified and competent
installer, using calibrated equipment.
NOTICE This air heater must be installed and maintained
in accordance with this manual, national and local building
regulations and local health and safety regulations.
2.1.1 Protection against dust
CAUTION! Do not use the air heater in a very dusty
environment. Dust may accumulate and cause a defect of
the heater. This is also the case for the room thermostat.
CAUTION! Cover the air heater while spreading sawdust
on the floor. This prevents large amounts of dust from
accumulating on the heater.
CAUTION! The air heater can be used in a dusty
environment (e.g. a poultry shed) if they are cleaned and
maintained more frequently.
2.1.2 Temperature
CAUTION! Do not install the heater in places where the
temperature can rise above 35°C. Higher temperatures
cause the internal components to degrade much faster.
2.2 Use
CAUTION! Make sure the area around the air heater is
dry when performing maintenance on the air heater.
CAUTION! Always close the doors and inspection hatches
of the air heater, except when adjusting and checking the
appliance.
2.3 Maintenance & Cleaning
Frequent maintenance and cleaning of the air heater is
necessary to ensure safe and proper operation. Failure
to do so could lead to damage to the heater or its
surroundings and void the warranty.
2.3.1 Protection from water (IP class)
WARNING! Never use water when cleaning electrical parts.
This air heater is not waterproof and has an IP00B
classification.
WARNING! Do not expose the air heater to rain, spray or
dripping water.
2.4 Children and vulnerable users
WARNING! This air heater can be used by children aged
8 years and above and by persons with reduced physical,
sensory or mental capabilities or lack of experience and
knowledge, if they are supervised or instructed concerning
use of the appliance in a safe way and understand the
hazards involved.
WARNING! Children shall not play with the air heater.
WARNING! Children shall not clean and maintain this air
heater without supervision.

5INSTALLATION MANUAL AIR HEATER TYPE EH
3 Technical specifications
3.1 Performance
Type EH
Technical specification Unit EH5 EH10 EH15 EH20 EH25 EH30 EH40
Heat output (max.) kW 5,0 9.9 15.0 19,8 24.9 29.7 39.6
Heat output (min.) kW 2,5 3.3 7.5 9,9 9.9 9.9 19.8
Nominal power kW 5,2 10.1 15.2 20,0g 25.1 29.9 39.8
Current per phase (max.) A 11,9 15.5 22.9 31,0 37.2 44.2 59.0
Current per phase (max.) A 22,6 44,0
Air output (max.) m3/h 3100 3100 3100 3100 3000 3000 4400
Throw horizontal (max.) m 23 23 23 23 22 22 28
Electrical connection (50 Hz) V 400 V (3F + N) 400 V (3F + N) 400 V (3F + N) 400 V (3F + N) 400 V (3F + N) 400 V (3F + N) 400 V (3F + N)
Electrical connection (50 Hz) V 230 V (1F + N) 230 V (1F + N)
Sound level (at 5 m) dBA 55 - 58 55 - 58 55 - 58 55 - 58 55 - 58 55 - 58 57 - 60
Weight kg 24 25 26 26 28 30 34
3.2 Dimensions
The dimensions of this air heater can be found in figure 1.
Figure 1 - Dimensions of the EH
Model(s) EH5 - EH30 EH40
A 570 650
B 490 490
C 390 530
D 125 125
E 420 490
F 380 490
G 140 100
H 280 380
I 230 325
J 195 245
K 420 420

6
4 Installation
4.1 Preparation
Before installation, please use the data badge to check:
• if the heater is in accordance with the order;
• if the heater is suitable for the local present
provisions (electrical supply etc.)
Before leaving the factory, the air heater has been tested
for safety and has been set to the operating settings. It has
been configured for the voltage that is stated on the data
badge. Should there be any doubt about the settings that
apply to your situation, please contact your supplier.
4.1.1 Standards
NOTICE The installation must comply with all applicable
local and national standards.
NOTICE The air heater must be installed in accordance
with the relevant requirements of the Electrical
installation regulations and or other local regulations that
may apply.
4.2 Positioning the air heater
Keep the following requirements in mind when choosing a
location to install your air heater:
WARNING! Never install an air heater close to flammable
materials.
• Keep sucient distance between the heater and
any obstructions. This is both for safety reasons
and to allow access for service and maintenance
(figure 2).
• Make sure the air flow to and from the heater is
free from obstacles at least 5 metres in front of the
heater. Also make sure the air intake is free from
obstacles.
• Make sure enough space remains to open the door
of the air heater.
• Make sure the wall can support the air heater.
Figure 2 - Minimum clearances around the air heater
4.2.1 Suspension
Depending on the model of your air heater, two types of
wall support can be used:
Model(s) Wall support Art. Nr.
EH5 - EH40 Wall support GA8610
EH5 - EH40 Design console GA8630
Figure 3 - Wall support

7INSTALLATION MANUAL AIR HEATER TYPE EH
Figure 4 - Design console
Figure 5 - Design console (min. 45o)
Model(s) A B C D
EH5 - EH30 795 380 280 745
EH40 845 490 380 795
The air heater is equipped with threaded sockets to
suspend the unit (see §10).
Figure 6 - Vertical suspension kit
• Use the suspension kit that is compatible with your
air heater. The suspension kit is not delivered with
the air heater. Contact your supplier.

8
4.3 Electrical connection
The electrical installation must comply with local and
national requirements as well as IEE regulations.
4.3.1 Power supply
The air heater requires an earthed power supply of 400 V/
AC (Three phase).
A supply of 230 V/AC + Neutral (1 Phase) is OPTIONAL
FOR THE EH5 and EH10 ONLY. The control circuit is a two
wire low voltage bus communication.
Figure 7 - The air heater's connection clamps
4.3.2 Fuse
One fuse is present on the air heater’s control board (see
the electrical wiring diagram in §11).
• When replacing this fuse, always use one of the
same type (5AT).
4.4 Room thermostat
The heater can only be controlled with one of the following
room thermostats:
• The MTS: a modulating digital thermostat.
• The MTC: a modulating digital clock thermostat
with optimiser.
• Interface module; a specially designed interface
module for BMS systems. Contact your supplier for
more information.
• ON/OFF thermostat: a simple on/o thermostat.
4.4.1 Installation requirements
Following these requirements when placing the thermostat
to ensure the heater functions correctly:
• Make sure that air can circulate around the
thermostat.
• Make sure the sun does not shine directly upon the
thermostat.
• Do not place the thermostat on a cold wall.
• Place the thermostat on an inner wall free from
draught.
• Never place the thermostat within the throw of the
heater.
• Never mount the thermostat near the aerials of
internal communication networks. These emit
radiation that can disturb the thermostat. Keep
several meters distance.
In all cases, the communication between the heater
and the thermostat is based on a two wire, low-voltage
connection. (see the electrical wiring diagram in §11).
Follow these instructions to prevent malfunction of the
installation and damage to the thermostat or air heater:
• Use a cable with the following specifications:
–Signal cable.
–Shielded and twisted.
–Minimum dimensions: 1 x 2 x Ø0,8 mm2.
–Maximum length: 200 m.
CAUTION! Keep the thermostat cable separated from the
mains cables.
CAUTION! Connect the cable’s earth shield only to the
earth terminal inside the air heater. Do not connect the
other end of the cable’s earth shield.
NOTICE A cable with a thickness of less than 0.8 mm will
result in a poor signal.
NOTICE A cable that is not shielded and twisted may
result in a disturbed communication in an EMC-unfriendly
environment.
4.4.2 Modulating room thermostat installation
To connect the air heater to an MTS or MTC thermostat, do
the following:
1. Connect the two control wires to terminals 4 and
5 (see figure 8 or the electrical wiring diagram in
§11).
2. Set the S1 and J14 switches on the control unit as
follows (figure 9 and 10):
a. Set S1 to 1.
b. Set J14 to 1.

9INSTALLATION MANUAL AIR HEATER TYPE EH
NOTICE The air heater must be switched o when setting
the switches. Otherwise the settings will have no eect.
Figure 8 - Modulating thermostat connection
1 2 3 4 5 6 7 8
ON
1 0
S1 J14
Figure 9 - Positions of the S1 and J14 switches
Figure 10 - Location of the S1 and J14 switches
4.4.3 Installation of multiple heaters on one control unit
An MTC or MTS room thermostat, or interface module can
control up to 8 air heaters. To connect the air heaters, do
the following (figure 11):
NOTICE This functionality does not apply to an ON/OFF
thermostat.
1. Connect the two wires of the thermostat to termi-
nals 4 and 5 of the first air heater.
2. Connect the first air heater to the second air heater.
3. Repeat for each subsequent air heater.
PE L5
4
N 5
45 45 4
22°C
L
N
PE L N
L
N
PE L N
L
N
PE L
N
L
N
123...8
22° C
L Neutal
4 5
L Neutal
4 5
L Neutal
4 5
1 2 3 4 5 6 7 8
ON
1 0
1 2 3 4 5 6 7 8
ON
1 0
S1 J14
1 2 3 4 5 6 7 8
ON
1 0
1
2
3
Figure 11 - Connection of multiple air heaters to a
modulating room thermostat
Each air heater needs an unique number to be recognised
by the room thermostat. This number can be set with the
J14 switch on the control unit of each air heater:
1. Set the S1 and J14 switches on the control unit as
follows (figure 12):
a. Set the S1 switch of the first air heater to 1.
b. Set the S1 switch of the other air heaters to 0.
c. Set the J14 switch of the first air heater to 1.
d. Set the J14 switch of the second air heater to
2, etc.
1 2 3 4 5 6 7 8
ON
10
1 2 3 4 5 6 7 8
ON
1 0
S1 J14
1 2 3 4 5 6 7 8
ON
10
Figure 12 - Positions of the S1 and J14 switches for the
first three air heaters in a system
NOTICE If the J14 switch of more than one air heater is
set to the same number, the system will not work.
NOTICE The air heater must be switched o when setting
the switches. Otherwise the settings will have no eect.
4.4.4 ON/OFF thermostat installation
To connect the air heater to an ON/OFF room thermostat,
do the following:

10
• Connect the two thermostat wires to terminal 6 and
7 (see figure 14 or the electrical wiring diagram in
§11). This is a 24 V connection for the thermostat
signal.
Figure 13 - ON/OFF thermostat connection
NOTICE Never combine these connections with the
terminals 6 and 7 of other air heaters.
NOTICE Always use separate relays for each air heater.
NOTICE Do not connect an external power source to
these terminals. These terminals need a dry contact.
5 Operating the air heater
5.1 Minimum operating time
The heater will always run for a minimum of 30 seconds,
even if the heat demand stops. This is to avoid large
amount of starts and stops.
After this, the fan will run for 2 - 3 minutes to cool down,
depending on the temperature.
When the cooling time has passed, a new heat request will
be granted.
5.2 Delta-T-regulation
The air heater can function as a de-stratification fan. This
is called delta-T regulation and it is done via the room
thermostat, with a temperate measurement sensor that is
located on the air heater.
The system fan is activated when the temperature-
dierence between the sensor on the heater (the delta-T
NTC sensor) and the sensor in the thermostat is bigger than
8oC (standard factory setting). This procedure ensures an
even distribution of temperature throughout the building,
thus acting as a fully automatic de-stratification fan.
5.2.1 Switch o delta-T-regulation
Delta-T regulation can be switched o when it is not desired
(e.g. when it causes discomfort). This can be done in the
Settings menu on the room thermostat. See the user manual
of the special Room thermostat for more information.
NOTICE Delta-T regulation is automatically switched
o when the delta-T sensor (sensor terminal J6) is
disconnected.
5.3 Summer ventilation
The fan can be set to run in the summer. Follow the instructions
in the user manual of the special Room thermostat.
5.4 Overheating protection
The air heater's heat exchanger and flue system are both
protected from excessive temperatures.
5.4.1 Heat exchanger
An NTC sensor is located near (or on) the heat exchanger.
This sensor monitors the heat exchanger temperature.
If the heat exchanger becomes too hot, this sensor will
cause the heating process to stop. Depending on the
temperature, the air heater performs the following actions:
• Step 1: Power reduction (when possible).
• Step 2: Burner stop, followed by an automatic
restart when cooled down (thermostat display).
• Step 3: Burner stop, followed by a Lock Out. A
manual reset is required. (thermostat display).
NOTICE A manual reset can be done on the electronic
circuit board or remotely with the special room thermostat.

11INSTALLATION MANUAL AIR HEATER TYPE EH
6 Commissioning the air heater
6.1 Adjusting the settings
Prior to packaging, the safety and functioning of each
air heater is checked in detail. It is also set to the right
combustion eciency.
In general, the heater does not need to be adjusted after
installation. It is only necessary to perform a functional
check and to obtain a flue gas analysis and record it for
later reference.
6.2 Commissioning the air heater
Once the unit is installed according to this manual, the unit
can be commissioned. To do so, follow these instructions:
1. Switch on the electric supply with the maintenance
switch.
You are now able to observe the first start-up and become
familiar with the functioning of the heater.
1. Instruct the end user of the about a safe use of the
air heater:
–The location of the maintenance switch
2. Instruct the end user about the operation of the
heater:
–Lock-out indication
–Reset
3. Instruct end user about the necessary
maintenance.
4. Leave this manual with the end user.
6.2.1 First use – thermostat
To commission the air heater via the room thermostat, do
the following:
• Put the thermostat in the highest position. The start
sequence is always the same.
The air heater will burn for the minimal firing time (see
§5.1 for more information).

12
7 Troubleshooting
If the air heater malfunctions, first check if the problem is
caused by external circumstances (e.g. no supply power).
If the problem is not caused by external circumstances,
use the tables and instructions in this chapter to fix the air
heater.
NOTICE Please remember the built in waiting times of
the air heater; the signals of the LED’s and the code on the
display. Do not react too soon.
7.1 Volatile lock outs
The table below describes the volatile lock outs that can
occur. These can only be reset by hand.
NOTICE The reset button is located underneath the LED
of the control board. This LED will light up green during
normal function or in stand-by mode, red in case of an
error.
Display Error type Description Case #
L-0 Internal error Internal error 13
L-2 and 3 Internal error Internal error 13
L-4 E-error E-error for more than 24
hours
12
L-8 to 12 Internal error Internal error 13
L-15 Overheating Heat exchange sensor is
overheated
3
L-17 to 19 Internal error Internal error 13
L-25 Sensor error Heat exchange sensor
failure
4
L-27 to 31 Internal error Internal error 13
L-32 Sensor error Heat exchange sensor
failure
4
L-33 to 38 Internal error Internal error 13
L-43 Overheating Heat exchange sensor is
overheated too often
3
7.2 Temporary errors
The table below describes the temporary errors that can
occur. These will disappear automatically after the cause
has been resolved.
Display Error type Description Case #
E-00 to 04 Internal error Internal error 13
E-05 Overheating Heat exchange sensor is
overheated
3
E-06 to 13 Internal error Internal error 13
E-14 Flame error Flame detected when there
shouldn’t be one
16
E-15 to 20 Internal error Internal error 13
E-21 and 22 Heat exchanger
sensor error
Heat exchanger sensor not
detected
4
E-27 and 28 Heat exchanger
sensor error
Heat exchanger sensor
short-circuit
4
E-34 Reset button
error
Too many reset actions in a
short timespan
9
E-36 Overheating Heat exchange sensor is
overheated
3
E-38 and 39 Heat exchanger
sensor error
Heat exchanger sensor not
detected
4
E-47 and 48 Heat exchanger
sensor error
Heat exchange sensor
short-circuit
4
E-49 to 64 Internal error Internal error 13
E-65 Voltage too low Supply voltage is too low
for over 1 minute
E-66 Voltage too high Supply voltage is too high
for over 1 minute
7.3 Warnings
The table below describes the temporary warnings that
can occur. The heater may still be working, or stops until
the cause has been resolved.
Display Error type Description Case #
A-07 Overheating Heat exchange sensor is
almost overheated
3

13INSTALLATION MANUAL AIR HEATER TYPE EH
7.4 Instructions
After identifying the problem, use the Case number to find
the possible cause in this paragraph.
Case 3: Heat exchange sensor or flue sensor is overheated.
• Check if the connectors J12 and J6 are plugged in
correctly and if the connection J12[1-4] (optional
overheating protection) is closed.
• Check if the system fan supplies enough air.
Case 4: Heat exchange sensor or flue sensor not detected,
or short circuit.
• The heat exchange sensor consists of two internal
sensors. The readings of these sensors may dier
too much:
–Measure the resistance of each sensor. The
resistance should be 20 KΩ at 25 °C and 25
KΩ at 20 °C.
–If the measured values dier too much,
replace the sensor.
Case 9: Too many reset actions in a short timespan.
• This error will disappear after some time or if the
main power is disconnected for a while.
Case 12: E-error for more than 24 hours.
• Switch the air heater o and on and check the error
code.
Case 13: Internal error.
• Isolate the electrical supply and reenergise. If this
does not help:
–Replace the burner control unit.
Case 16: Safety relay error.
1. Isolate the electrical supply.
2. Check if one of the relays got stuck when it was
switched. If so:
–Replace the relays.
3. Reenergise the appliance.
4. Check if any of the relays switches on at once (too
soon). If so:
–Replace the burner control unit.

14
8 Maintenance
CAUTION! The air heater must be inspected and
cleaned once a year by a qualified installer with sucient
knowledge about the device.
CAUTION! Sucient maintenance is critical in
circumstances such as high humidity, dust, high switching
on/o frequency, etc.
8.1 Preparation
Before performing maintenance on an air heater that is
already installed, do the following:
1. Set the thermostat to the lowest setting.
2. Turn o the power supply to the air heater using the
maintenance switch.
CAUTION! Do not use water when cleaning the air heater.
CAUTION! The heater must be electrically isolated during
servicing.
8.2 Basic maintenance
To perform basic maintenance on the air heater, do the
following:
CAUTION! When cleaning parts of the air heater, use
a dry cloth, brush, compressed air or a vacuum cleaner.
Never use a steel brush.
1. Inspect the heating elements.
2. Clean the fan guard on the outside of the heater.
Clean the fan blades if required.
3. Open the access panel.
4. Clean the inside of the air heater. Focus on the fol-
lowing parts:
–Body
–Fan blades and motor
–Heating elements
–Temperature sensor
5. Check if the wiring, nuts and bolts are properly
secured and tightened.
Some checks can only be performed when the heater is
running. Do the following:
1. Reconnect the air heater to the power supply.
2. Switch on the air heater.
3. Check if the heater operates without problems. See
§7 if any errors occur.

15INSTALLATION MANUAL AIR HEATER TYPE EH
9 Electrical wiring diagram
A complete electrical wiring diagram is shown in figure 14. The connections that are most important to the installation
process are shown in figure 15.
No. Connection type
A1 Alarm output 230V (optional)
C2 Modbus (option)
C3 0-10V (option)
C4 Modulating thermostat
C5 ON/OFF thermostat
E1 Power line EMI filter
K1 Relay low
K2 Relay high
K6 Reset relay (optional)
M2 Modulated system fan (triac)
P1 Power supply (230 V)
T1 Heat exchanger sensor
T4 Temperature sensor (delta-T)
Figure 14 - Electrical wiring diagram EH
Figure 15 - Main connections for installation

16
10 Exploded view and spare parts
The parts of the air heater are shown in an exploded view in figure 15. The table below describes each part and shows the
correct article number for a replacement part.
1
3
2
4
56
8
7
Figure 16 - Exploded view of the EH
No. Description EH5 EH10 EH15 EH20 EH25 EH30 EH40
1 System fan GX4212 GX4212 GX4212 GX4212 GX4212 GX4201 IX4214
2 Relay IE5201 IE5201 IE5201 IE5201 IE5201 IE5201 IE5202
3 Relay IE5201 IE5201 IE5201 IE5201 IE5202 IE5202 IE5202
4 Burner control unit GE5903 GE5903 GE5903 GE5903 GE5903 GE5903 GE5903
5 Heating element 2.5 kW IE5210 - IE2510 IE2510 - -
6 Heating element 3.3 kW - IE2512 - IE2512 IE2512 IE2512
7 Heat exchanger sensor GY3932 GY3932 GY3932 GY3932 GY3932 GY3932 GY3932
8 Delta-T sensor GY3931 GY3931 GY3931 GY3931 GY3931 GY3931 GY3931

17INSTALLATION MANUAL AIR HEATER TYPE EH
11 Disposal and recycling
The meaning of the symbol on the material, its accessory or packaging indicates that this
product shall not be treated as regular waste. Please, dispose of this equipment at your
applicable collection point for the recycling of electrical and electronic equipments waste.
In the European Union and Other European countries which there are separate collection
systems for used electrical and electronic product. By ensuring the correct disposal of this
product, you will help prevent potentially hazardous to the environment and to human health,
which could otherwise be caused by unsuitable waste handling of this product. The recycling
of materials will help conserve natural resources. Please do not therefore dispose of your old
electrical and electronic equipment with your regular waste.
12 Declaration of conformity
Winterwarm Heating Solutions B.V.
Industrieweg 8
7102 DZ, Winterswijk
The Netherlands
Declares that air heater types:
• EH5, EH10, EH15, EH20, EH25, EH30 & EH40
Are in accordance with the essential requirements of the relevant EU directives, being:
• 2014/35/EU (LVD) relating to the electric safety of appliances
• 2014/30/EU (EMC) relating to electromagnetic compatibility of appliances
• 2006/42/EG (MD) relating to the safety of machinery
Goods should be installed and used in accordance with our instructions and with the applicable local and international rules.
Installation should be done by an authorized, qualified and competent installer.
Winterswijk, December 15th 2020
Ir. M. Fiselier
Director Operations