Stavoklima EASY User manual

C O M F O R T A I R C U R T A I N S T A V O K L I M A
Installation and operation manual
EASY model
www.stavoklima.cz version A
EN

Installation and operation manual
2Technical changes reserved
1. Table of Contents
1. Table of Contents ............................................................................................................................................................. 2
2. Unpacking, check after transport or warehousing ........................................................................................................... 3
2.1. Unpacking and check .............................................................................................................................................. 3
2.2. Storing of the curtain, additional transport recommendations.............................................................................. 3
3. Safety measures ............................................................................................................................................................... 4
4. Basic information about the curtain and its use............................................................................................................... 4
5. Dimensions of the curtain ................................................................................................................................................ 5
6. Curtain installation ........................................................................................................................................................... 5
6.1. Additionally arrested ZS-Easy suspensions under ceiling........................................................................................ 5
6.2. ZN-Easy wall-mounting suspension ........................................................................................................................ 6
6.3. Horizontal installation –general information......................................................................................................... 6
7. Connection of the curtain to heating system ................................................................................................................... 7
7.1. Heat exchanger control using a valve with thermostatic head............................................................................... 8
7.2. Heat exchanger control with a valve with electrothermic head ............................................................................. 8
7.3. Setting of independent valve flow pressure (ETVQ) ............................................................................................... 8
8. Types of controllers and options for controlling .............................................................................................................. 9
8.1. Regulator settings................................................................................................................................................... 9
8.2. BASE wall-mounted controller................................................................................................................................ 9
8.3. BASE IR remote controller .................................................................................................................................... 10
8.4. Control using the Modbus function ...................................................................................................................... 10
9. Electric connection of the curtain................................................................................................................................... 12
9.1. Unlocking of emergency thermostat for curtains with the electric heater........................................................... 12
10. Commissioning, starting of the curtain........................................................................................................................... 13
11. Optional accessories - depending on equipment level................................................................................................... 13
12. Basic service and maintenance information................................................................................................................... 13
12.1. Troubleshooting.................................................................................................................................................... 14
13. Decommissioning –disposal........................................................................................................................................... 14
14. Important notes.............................................................................................................................................................. 15
Explanation of symbols used
Instructions for mechanical repairs and
maintenance.
Important safety information, technical
information, data and device output.
Important electric information - read carefully -
curtain damage hazard in case of wrong
installation.
Important information - please read carefully.

Comfort EASY curtain
Technical changes reserved 3
2. Unpacking, check after transport or warehousing
2.1. Unpacking and check
Carefully check the delivery note attached to the delivery. For components identified as extra accessories in the delivery note (not
included in the curtain or installed therein), please check completeness to the parcel and perfect condition (usually delivered in a
separate box). Report any serious damage to packaging or boxes, and make a basic record to the parcel transport documents.
Inform the transport company or manufacturer (if the manufacturer arranges transport) immediately.
All packaging material used is environmentally friendly and may be reused or recycled. Dispose of or reprocess the non-
environmentally friendly components correctly.
When unpacking, follow the procedure diagrammatically shown below:
2.2. Storing of the curtain, additional transport recommendations
Observe packaging decals on the curtain. The device in its packaging must not be
turned or placed in transport positions other than those supplied and recommended
by the manufacturer. Packaging also contains production number and curtain type
for easy curtain type identification.
Use genuine packaging for further transport of the curtain. The packaging is tested
for re-use, and a different packaging may cause damage to the curtain.
Use means with certified sufficient loading capacity for transport and handling;
properly qualified persons only may operate the transport means.
Permissible warehousing conditions: -10°C ÷ 50°C, 50-85% humidity without
condensation.
Do not remove genuine packaging until installation is complete (to avoid device
damage). At least 2 persons are recommended for safe handling.
The curtain is transported in a special box. Remove
reinforcement elements after opening of the box. You
can then unbox the curtain carefully.

Installation and operation manual
4Technical changes reserved
3. Safety measures
The curtain has been manufactured in line with the government decrees and Czech standards harmonized with the EU regulations
mentioned in the manufacturer’s declaration of conformity.
The above mentioned product complies with the following standards:
ČSN EN 60335-1 ed.3 ČSN EN 60335-2-30 ed. 3
ČSN EN IEC 61000-6-2 ed. 4 ČSN EN 61000-6-3 ed. 2
The above mentioned product complies with the following directives:
Directive 2009/125/EC of the European Parliament and of the Council establishing a framework for the setting of eco-design
requirements for energy-related products.
Government Decree No. 118/2016 Coll. Directive 2014/35/EU of the European Parliament and of the Council on the
harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment
designed for use within certain voltage limits.
Government Decree No. 117/2016 Coll. Directive 2014/30/EU of the European Parliament and of the Council on the
harmonisation of the laws of the Member States relating to electromagnetic compatibility.
Government Decree No. 481/2012 Coll. (Regulation of the European Parliament and of the Council No. 2014/35/EU,
Regulation of the European Parliament and of the Council No. 2011/65/EU).
Government Decree on restriction the use of some hazardous materials found in electrical and electronic products.
Observe generally applicable national provisions and other related regulations. Unplug the curtain from mains before any service
intervention. Connection and earthing of the electric device or components thereof must be in line with laws applicable in the
country of use. Only qualified staff may carry out any electric service works.
Observe applicable laws, in particular:
on safety of electric and thermal appliances,
on central heat distribution systems,
on fire safety,
do never exceed working pressure and temperature specified in the production label.
Follow standards and rules applicable in the country of use, in particular the fire safety of appliances and heat sources, and the
fire technical properties of materials - flammability levels. Place the curtain 150mm from B, C1, C2 level flammable materials, and
400mm and 1000mm for C3 level easily flammable materials in the radiation direction (air flow from the curtain).
4. Basic information about the curtain and its use
An air curtain is a device, which produces a natural air barrier against penetration of cold air into heat environment (in summer,
it operates as a protection against penetration of hot summer air to the spaces being either cooled or air conditioned). These
devices are suitable for basic and non-aggressive environment. The permitted temperature range in the space is 5–40 °C.
For the curtaining purposes, either circulation air of the environment temperature or the circulation air heated by hot-water or
electric heater may be used. The use of the device can save high cooling costs in the air conditioned spaces. Full performance of
the curtain may be provided only when maintenance is regular and proper. All controls are accessible and well maintained.
Technical conditions for curtain operation:
max. media working temperature 90°C/pressure 1.6MPa – unless specified otherwise,
hot water working voltage –230V/50Hz, electric heater curtain working voltage - 400V/50Hz,
max. surrounding temperature 40 °C,
IP rating of hot water curtain - IP 20/IP rating of electric heater curtain - IP 20,
the curtain is intended for basic and non-aggressive environment,
minimum pressure difference 23kPa must be provided for use of a 2W valve (applies only to a
pressure-independent valve).

Comfort EASY curtain
Technical changes reserved 5
5. Dimensions of the curtain
6. Curtain installation
6.1. Additionally arrested ZS-Easy suspensions under ceiling
The door curtain is suspended in four suspension points on the curtain casing. The suspension points are accessible from outside
and rivet nuts (M8 threads) are installed on the curtain from production plant.
Upon special purchase order, the following is supplied as
accessories to the ZS-Easy under-ceiling suspensions:
4 pcs M8x1000 thread bar, 4 pcs M8/30 anchor, 4 pcs U-profile,
4 pcs M8/30 bolt, 12 pcs M8 nuts, 12 pcs flat washer size 8, 8
pcs spring washers size 8.
Measure the position of the curtain and its distance from the
ceiling, and cut the threaded bars to required length. Mark the
anchoring points according to drilling scheme (refer to Chapter
4) and drill the ceiling holes for installation of anchors. Fit the
threaded rods into the prepared ceiling anchors and rotate the
nuts. Use the bolts and washers to attach the curtain to the
prepared holes with U-profile suspension. Position the curtain
as required, lead the threaded bars through the U-profiles, and
fasten by the washers and nuts.
Installation under ceiling
Wall-mounted
Minimum installation distance

Installation and operation manual
6Technical changes reserved
6.2. ZN-Easy wall-mounting suspension
The door curtain is suspended in four suspension points on the curtain casing. The suspension points are accessible from outside
and rivet nuts (M8 threads) are installed on the curtain from production plant.
Upon special purchase order, the following is supplied as accessories to the ZN-Easy wall-mounting suspensions:
2 pcs of wall-mounted bracket, 4 pcs 6x80 screw, 4 pcs rivet washer size 6, 4 pcs construction wall plug 10, 4 pcs M8x30 bolt, 4
pcs flat washer size 8, spring washers size 8.
The wall-mounted suspensions permit installation in two ways.
Measure out the position of the curtain and the wall-mount. Identify the anchoring points and drill holes to the wall to fit the wall
plugs. Attach the wall-mounted suspension to the wall using appropriate connection material. Install the wall-mounted hanger to
the curtain using the bolts and washers in the supply. Pay attention to fitting of full amount of bolts and all important fixing
material.
6.3. Horizontal installation –general information
Use quality anchors and wall plugs only. Consider installation situation and suitability of anchoring and installation material,
including loading capacity of the structure properly. The manufacturer accepts no liability for improperly used wall plugs or other
installation and hanging material!
Pay attention to correct fitting of all nuts to all assembly components. Pay attention to the end position of the threads to avoid
loosening and falling the curtain by rotation.
Following the assembly, check for horizontal position in both directions. Make sure that tightening up of individual hangers and
sleeves do not cause crossing and twisting of the curtain. Always properly consider loading capacity of the ceiling or of the wall.
Install the device to structurally solid beams.
Always suspend the device to all suspension points.
Variant No. 1
Variant No. 2

Comfort EASY curtain
Technical changes reserved 7
7. Connection of the curtain to heating system
Please check all hot water connections for readiness and perfect condition before
connecting media to the curtain. Furthermore, please check the hot distribution for
components or other measures to ensure zero transmission of static, dynamic, and
dilatation forces at the input and output neck connections. No excessive force may be
applied when connecting the hot water circuit of the building to the curtain’s heat
exchanger. By the neck of the air conditioner there is a mark that notes use of two keys so
that no stressing of the necks occurs in the course of tightening or loosening. When bolting
and tightening up the screw union of the heat exchanger must be secured by a clamp
against undesired rotation that may subsequently result in deformations or damage to
pipe necks on the heat exchanger.
Any non-compliance with the instructions above results in rejection of any complaint.
By default, neck for the hot water heater is located on the right hand side on the upper part of the curtain (may be placed
elsewhere upon request). The inputs are identified by round marks –medium input red with arrow pointing inside, and medium
output blue with arrow pointing outside.
Do not swap the return and supply neck positions - this may cardinally change performance and parameters of the heater with
consequent impact on the hydraulic system. Do not exceed max temperature and pressure for which the curtain is rated.
The value of thermostatic head is pre-set, and the function of the electrothermic valve drive is given by a control type. The
connection is then made directly on the neck for media input (third neck is blind). For setting up the thermostatic head, refer to
article 7.1 of the function of the electrothermic drive, refer to article 7.2.
Pay attention to quality of media fed to the curtain; check for installation of cleaning valve downstream the curtain (not included
in the supply). Observe max temperature and media pressure to avoid heat exchanger damage. To make sure the heat exchanger
operates correctly, drain the exchanger (sludge valve) and purge the cleaning valve because construction or assembly impurities
may be present in the system. Deaerate the heat exchanger for perfect operation of the heat exchanger. Install the closing valves
on both pipes downstream the curtain (ball valves) . Connection thread right above the curtain must be removable and
not fixed.
As required by the customer, a not embedded 2-way or 3-way valve with control head can be delivered for the hot water heat
exchanger. The valve drive may be either self-acting (thermostatic) or electrothermic.
Instructions for electric connection of the valve is included in the wiring scheme for connection of the curtain. Specific wiring
scheme or valve instructions are available upon request only.
Media input
Media output
Connection of 2-way TV, ETVQ
valve
Connection of 3-way TVT, ETVT
valve

Installation and operation manual
8Technical changes reserved
7.1. Heat exchanger control using a valve with thermostatic head
The thermostatic head for 2-way (TV) and 3-way (TVT) valves is always supplied with the sensor separated
(temperature range 25–65 °C) – exhaust air temperature control. Setting of the required closing temperature
is made on the head scale (1–5). Temperature degrees with respect to the numbers on the head are
expressed as follows:
7.2. Heat exchanger control with a valve with electrothermic head
The electrothermic valve drive can be supplied to the hot water heat exchanger as not embedded either as 2-
way (ETVQ) or 3-way (ETVT).
“Normally open” version (NO)
When the thermal drive is under voltage, the electrically heated sensor heats up Upon “dead time” expiration
for continuous opening of thermic drive due to cooling down of the sensor.
Note:
The time delay (dead time) needs to be considered during the functional test; the opening and closing time depends on
surrounding temperature. Electric data: 230V/50Hz-3V, IP 54.
7.3. Setting of independent valve flow pressure (ETVQ)
qmax values
Setup
1
2
3
4
5
6
7
8
9
10
DN 20
210
335
460
575
680
780
890
990
1080
1150
DN 25
370
610
830
1050
1270
1490
1720
1870
2050
2150
DN 32
800
1220
1620
2060
2450
2790
3080
3350
3550
3700
qmax = l/h for each setting with the control cone fully open
Turn the setting wheel to required value, e.g., 5.0.
Turn the setting wheel counterclockwise to
position X.
Setup
Closing

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Technical changes reserved 9
8. Types of controllers and options for controlling
8.1. Regulator settings
Before use, it is necessary to set the required parameters on the DIPP-1 or DIPP-2 switches on the regulator inside the screen.
You can set the desired exhaust temperature using the DIPP-1 switch.
Configuration of rundown after the door is closed 10, 30, 40, 50 s is made using combination of the switches 1 and 2.
Configuration of the method of control (BASE CONTROL, BASE IR, MODBUS, SLAVE) is made by the combination of switches 3, 4.
8.2. BASE wall-mounted controller
The BASE controllers are intended for control of the fan and electric heater (hot water and electric) with possible connection of
external components (door contact, room or exhaust thermostat). Controller function is defined by type of the electric
documentation. The controller is designed for wall-mounted installation and a separate instructions manual is available.
For relevant electric wiring scheme,
refer the lid for electric connection in
the curtain. The scheme for a
supplied product is valid but it may be
modified upon request of the
customer or for production reasons
depending on a specific request. The
connection
between the air
curtain and the
controller is made using a UTP cable
with RJ 45 connector (available as
optional accessories in various
lengths).
BASE control board
BASE controller width 86 x height 86 x depth 25 [mm]
IP 20

Installation and operation manual
10 Technical changes reserved
8.3. BASE IR remote controller
The BASE IR wireless remote controllers are intended for control of the fan and electric heater (hot water and electric) with
possible connection of external components (door contact, room or exhaust thermostat). Controller function is defined by type
of the electric documentation. The controller is designed as wireless remote controller for which no installation is required. A
separate instructions manual is available.
For relevant electric wiring scheme, refer the lid for electric connection in the curtain. The scheme for a supplied product is valid
but it may be modified upon request of the customer or for production reasons depending on a specific request.
8.4. Control using the Modbus function
The condition for the MODBUS activation is activation of this feature on the DIPP-2 switch (page 9).
Using the BASE regulator, the air conditioning unit may be controlled remotely via RS 485 port.
Port: RS 485 - RJ45 type connector
Modbus protocol mode: RTU
Supported features: Reading of the registers MODBUS feature 3 (read
holding registers).
Writing of the registers MODBUS feature 16
(write multiple registers).
Communication parameters: Communication symbol rate - 9600 Bd
Data bits –8
Stop bit –1
Parity –even
Slave ID –10
BASE control board
Controller BASE-IR
width 40 x height 98 x depth 14
[mm], IP 20
RJ
RJ

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Technical changes reserved 11
Read-only registers:
DEC
address
HEX
address
Type
Meaning
Note
1000
0x03E8
UINT16
SW version code
e.g., 1230 refers to 1.23.0
1001
0x03E9
UINT16
Status word
Bit0..on/off
Bit1..door contact status
Bit3..room thermostat status
Bit4..heating thermostat status
Bit5..heating enabled
1002
0x03EA
UINT16
Fan speed
0 to 3
1003
0x03EB
UINT16
Heating level
0 to 6 for BASE-E
0/1 for BASE-W
1004
0x03EC
INT16
Temperature of temperature
sensor (x0.1°C)
-30°C up to +150°C
-30.0 = -300 ... +150.0 = 1500
1005
0x03ED
INT16
Set temperature (x0,1°C)
Depending on rotary DIPP 10.0 = 100 ... 40.0 = 400
1006
0x03EE
UINT16
Set delay of door contact (s)
Depending on DIPP position 1 and 2
1007
0x03EF
UINT16
Relay configuration
1 for BASE-W
4 or 6 pro BASE-E depending on DIPP position 5
1008
0x03EE
UINT16
Mode configuration
1 - IR, 2 - WALL, 3 - MODBUS, 4 - slave
1009
0x03EE
UINT16
Door contact configuration
0 .. off, 1 .. NC enabled
1010
0x03F0
UINT16
Status of HW inputs
Bit0..Emergency thermostat
Bit1..Room thermostat
Bit2..Door contact
1011
0x03F1
UINT16
Status of HW outputs
Bit0..RE1
Bit1..RE2
Bit2..RE3
Bit3..RE4
Bit4..RE5
Bit5..RE6
1012
0x03F2
UINT32
Relay on count 1
1014
0x03F4
UINT32
Relay on count 2
1016
0x03F6
UINT32
Relay on count 3
1018
0x03F8
UINT32
Relay on count 4
1020
0x03FA
UINT32
Relay on count 5
1022
0x03FC
UINT32
Relay on count 6
Registers for writing:
DEC
address
HEX
address
Type
Meaning
Note
2000
0x07D0
UINT16
Control word
Bit0..on/off
Bit1..door contact enabled
Bit2..polarity of door contact (0=NO, 1=NC)
2001
0x07D1
UINT16
Required fan speed when door
is open
1..3
2002
0x07D2
UINT16
Required fan speed when door
is closed
0..3 –not in use yet!
2003
0x07D3
UINT16
Required heating mode
0=OFF, 1=AUTO, 2=MAX
2004
0x07D4
UINT16
-
Not in use yet!
2005
0x07D5
INT16
Temperature sensor correction
(x0.1°C)
Within +/-10°C

Installation and operation manual
12 Technical changes reserved
9. Electric connection of the curtain
The curtain must be protected by a suitable circuit breaker according to its
electric parameters –refer to attached electric wiring. Connect the ready-
to-install cables to the terminals following the attached electric wiring
schemes, make connection check, equipotential bonding, and finally turn
the power supply on. Use the cable wires with cross section suitably rated
according to the current load –refer to electric wiring documentation.
The electric cable orifices are located always on the left hand side of the
curtain. When installing the electric wiring forhot water curtains and those
without heating, use the Allen key to open the lid of the curtain and guide
the cables through the cable orifices. For the curtains fitted with the
electric heater, use the Allen key to open lid of the box on top side of the
curtain (next to the cable orifices).
Make sure the cable is neither twisted nor deformed in any way. Keep free
ends of the cable wires sufficiently long for easy handling and cut the wire
only after you are sure the wire is long enough.
Observe generally applicable national provisions, particularly ČSN 12
2002 and other related regulations. Unplug the curtain from mains
before any service intervention. Provisions of ČSN 332190, 332000-5-
51 ed. 3, and 33 2000-5-54 ed. 3 mustbe observed for connecting and
earthing of the electric devices. Qualified electrician only may
perform any electric service works (qualification according to Section
6 of Decree of ČBU No. 50/78 Coll.).
During assembly, carefully check everything and carry out the initial
review of the device. Check operation of the FU1-FU3 electric fuses
(Ditronic) for interior circuits (for fuse values, refer to the box of
electronics), and make sure that the external components
(accessories), which may have an essential impact on correct function
of the device, operate.
ATTENTION: The delivery note serves as a warranty sheet!
9.1. Unlocking of emergency thermostat for curtains with the electric heater
The curtains fitted with the electric heater are provided with operation thermostat with automatic reset feature (located on each
heater) and emergency thermostat with manual reset.
When permitted limit temperature inside the curtain is exceeded, heating circuit is turned off by the emergency thermostat =
pushbutton sprung up. The button is used to unlock the safety thermostat in case of the device failure. After cooling down the
thermostat button needs to be pressed back to
default position. (refer to figure).
ATTENTION –unblocking of the emergency
thermostat does not resolve failure of the curtain!
Always remedy the cause of the thermostat
overheating!!!
Covering of the air curtain with any strange objects is prohibited ►risk of fire!!!
Depiction of cable orifices for hot water
curtains
Depiction of cable orifices for the curtain
fitted with electric heater

Comfort EASY curtain
Technical changes reserved 13
10. Commissioning, starting of the curtain
Before commissioning make and check:
•covers and shell of the curtain are in perfect condition,
•mechanic fixing and anchoring of the curtain,
•fixing of thermostatic head and its setting,*/**
•function of circulating pump (not included in the device),**
•correct connection of media and tight connections,**
•tightness and function of the valves,*/**
•availability of power voltage,
•correct connection of all curtain cables,
•fitting and setting of a pre-circuit breaker (not included in the device),
•free from mechanical impurities or objects.
*- if installed
**- hot-water version only
Initial review of the electric appliance according to ČSN 331500 and ČSN 33 2000-6-61 ed. 2 must be made upon commissioning.
11. Optional accessories - depending on equipment level
The most frequent accessories include thermostatic or electrothermic valves for the temperature control (chapter 7.1 and 7.2).
The valves are supplied as not embedded, for all available valve types refer to the catalogue.
Another accessory used is the door contact (either magnetic or mechanic). The contacts are placed on the door wings or door
parts in order to signal the position of the door.
An optional accessories may be e.g., room thermostat, hanging of the curtain and more. Selection of an appropriate type of
accessories must be supported by the controller type.
For all accessories offered for the EASY curtain, refer to the catalogue documentation.
12. Basic service and maintenance information
All curtains are thoroughly checked and tested by the manufacturer before dispatch. The most frequent errors root from
misunderstanding of the curtain function or incorrect cabling and connection. For this, observe instructions from the manufacturer
to avoid complex troubleshooting. In no case try to operate the curtain when connected in a different way - the curtain may
operate for a while as you wish or expect but this irreversible step may result in damage beyond repair and loss. No warranty
claims can be accepted with respect to this damage.
The EASY air curtains are made of quality materials that require no special maintenance. However, we recommend that
maintenance in required or shorter (depending on your observations due to operation in a specific application) intervals is carried
out for long lifecycle of the curtain.
Before any work with the curtain, disconnect the electric power supply, mains supply for the curtain. Electric shock hazard !!!
Observe generally applicable national provisions, particularly ČSN 12 2002 and other related regulations. Unplug the curtain from
mains before any service intervention. Provisions of ČSN 332190, 332000-5-51 ed. 3, and 33 2000-5-54 ed. 3 must be observed
for connecting and earthing of the electric devices. Qualified electrician only may perform any electric service works (qualification
according to Decree of ČBU No. 50/78 Coll., § 6 is required).
Please contact your vendor or distributor for a service agreement. You will get regular service and excellent care of your curtain.
Quarterly checks:
Curtain positioning and tightening of all bolt connections. Then, check tightening of bolts of exhaust splines.
Heat exchanger space check and remove dirt or foreign objects (use vacuum cleaner for dedusting, or steam for stuck dirt).
When using steam for removal of dirt, always proceed downstream the air flow. Set as lowest temperature as possible and
as lowest steam pressure as possible for not to damage the heat exchanger by cleaning (remove filter before cleaning –filter
damage hazard).*

Installation and operation manual
14 Technical changes reserved
Check cleanliness of the motor body and inner or outer parts of the curtain. Do not wash the motor body with water! Wipe
with lukewarm towel only –motor winding damage hazard; after the motor is cleaned, do not turn the curtain on for 60
minutes –let it dry properly. Proceed carefully when wiping of the exhaust splines - fragile splines - danger of damage!
Before winter, check the function, superior circulating pump (not included in the supply of the device), setting of thermostatic
or electrothermic valve.*
Re-test tightness of the curtain or of installed fittings on the water side. If a sludge filter is installed before the curtain –clean
the filter and check deaeration of the heat exchanger.*
Check curtain safety with respect to electric shock hazard according to applicable ČSN or national standards, including
earthing inspection.
Thorough cleaning of the suction grid, exhaust splines (tighten up, if necessary).
* if installed
12.1. Troubleshooting
Problem
Possible cause
Remedy
The curtain cannot be turned on
Curtain circuit-breaker is off
Turn on
Mains failure
Inspection
Fuse in the curtain
Inspection
Door contact
Check connection or interconnection
Controller position “0”
Check, > position than “0”
External contact
Check connection or interconnection
Noisy motor
Defective motor mount
Check - replacement
Motor overheats (motor thermal
contact turns off)
Defective motor mount or winding
Replace fan curtain
Heavily soiled motor –insufficient cooling
Check, clean
Excessive temperature of intake air
Inspection
Excessive temperature of intake medium
Check setup, remove
The fan delivers little air only
Soiled heat exchanger
Check - replacement
Curtain is not heating
Broken or clogged medium supply
Check - replacement
Little air flows through the heat exchanger
Check - remove
Soiled heat exchanger splines
Remove
Insufficient media temperature
Remove
Medium does not circulate
Check, deaerate
Temperature achieved in line with
controller setup
Controller setup
Defective drive of electrothermic valve
Check setup, or replace if defective
Automatic operation disconnection
Overheated motor
Find out and clear the cause
Door contact
Check correct function (refer to
controller description)
External clock
Check correct function (refer to
controller description)
* if installed
13. Decommissioning –disposal
After the expiration of the service life, the curtain mustbe disassembled and disposed of. Only qualified company may disassemble
the device. The product or components thereof must be disposed in environmentally-friendly manner at the end of its service life.
The components of the curtain must be separated and sorted out by type of material for disposal. Dispose of the metal and plastic
components at your local collection yard. The transport packaging of the product is made of common recyclable material (paper,
polyethylene, wood) and is labelled as such according to ČSN 77 0052-2.
As far as disposal is concerned, it is operator’s responsibility to comply with applicable national provisions in the country of use.
In addition, follow regulations and laws of your country applicable to waste disposal. Separated collection and recycling of the
products may help to protect environment and human health.

Comfort EASY curtain
Technical changes reserved 15
14. Important notes
The door curtains are intended to avoid heat or cold loss, filtration, and heating, or for ventilation in combination with mixing
accessories. Other uses are not intended. The manufacturer accepts no liability for damage resulting from use other than
intended. Observe this manual in operation of the curtains.
Installation, electric connection, and repairs must be carried out by qualified persons according to § 6 of Decree No. 50/78 Coll.
or according to applicable national standards and regulations. An expert company is needed to connect the heating medium.
Before the start of the heating season, it is necessary to provide the required amount of heating medium with the design values
for curtains with the hot water heater.
The manufacturer reserves right to changes for marketing or production reasons without prior notice!

Installation and operation manual
16 Technical changes reserved
STAVOKLIMA s.r.o.
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