SA FLEXIHEAT SAPH18/440 User manual

ISSUE 11
SA FLEXIHEAT ATEX HEATER
ATEX AND UKCA EX APPROVED FOR ZONES 1 & 2
IT IS MANDATORY TO READ THIS USER MANUAL
TO ENSURE THAT THIS EQUIPMENT IS USED
CORRECTLY AND SAFELY.
USER MANUAL
PATENT PROTECTED GB2524076

2
T: [phone]
[email protected]om
www.saequip.com
It is mandatory to read this User Guide to ensure
that this equipment is used correctly & safely.
This will also ensure you get maximum performance and
service life from this equipment.
PRODUCT INFORMATION 3
POSSIBLE CONFIGURATIONS 4
BEFORE, DURING & AFTER USE 7
TROUBLESHOOTING 11
SPECIFICATION 12
CERTIFICATION 13
DECLARATION OF CONFORMITY 14
WARRANTY 15
ACCESSORIES 15
CONTENTS
WELCOME TO...
SA Equip have been providing solutions for workers
in dangerous environments for over 90 years, working
directly with operatives to design practical, customisable
and lasting solutions to lighting, ventilation, heating and
power distribution challenges.
As a result, we have earned a global reputation for innovation
and first class service. All products combine maximum safety
with proven effectiveness and low lifetime costs.
For further information or product support please contact us on:

3
PRODUCT INFORMATION
THIS USER GUIDE COVERS THE FOLLOWING HEATER TYPES:-
SAPH18/440 - SA FLEXIHEAT ATEX Heater 18kW
A powerful, compact ATEX Heater for hazardous areas.
The SA FLEXIHEAT ATEX Heater embodies all of our principles: ATEX, Tough, compact,
powerful, user friendly and easily moveable. The SA FLEXIHEAT ATEX Heater can be
easily carried to wherever it is needed.
It can be used in several different configurations, with or without ducting. Tough
marine grade materials give it a long life, even in extreme environments. Flexible electronics
can cope with different electrical supply systems. This powerful unit is an impressive heat
source.

1
2
4
POSSIBLE CONFIGURATIONS
THE HEATER CAN BE USED IN THE FOLLOWING WAYS:
HEATER INSIDE
THE WORK AREA
Heater is situated in the area to be
heated and used without ducting.
This will not provide ventilation
but is the most effective way of
heating the area.
HEATER INSIDE
THE WORK AREA WITH
DUCTING TO OUTSIDE
Air is drawn into the area with
SA CYCLONE Anti-static Ducting
connected to the air intake. This
provides ventilation in addition to
heating. SA CYCLONE Anti-static
Ducting can also be connected to
the air outlet if required.

4
3
5
HEATER OUTSIDE
THE WORK AREA WITH
DUCTING TO INSIDE
Air is blown into the area via
SA CYCLONE Anti-static Ducting
connected to the air outlet. This
provides ventilation in addition to
heating.
HEATER WITH
DUAL DUCTING
SA CYCLONE Anti-static Ducting
can also be connected to the air
intake if required.

5
6
POSSIBLE CONFIGURATIONS (CONTINUED)
MULTIPLE HEATERS
CONNECTED WITH DUCTING
Connecting the heaters in
series using SA CYCLONE Anti-
static Ducting will increase the
temperature lift achieved in low
ambient temperatures. The
airflow of each fan must be in the
same direction. The maximum
temperature achieved is limited by
a safety device.
Heaters can also be connected in
parallel to increase the volume of
air as shown in image: No. 5
TIPS FOR ACHIEVING
BEST PERFORMANCE
HEATING OBJECTS
(e.g.: paintwork, freeze protection,
persons) Place heater/duct outlet
close to the object to be heated
(minimum distance: 1 metre).
SPACE HEATING
Use re-circulated air method and
place heater/duct outlet in an area
where the airflow is directed into
open areas and/or across areas of
heat loss (e.g. windows, thin walls).

7
IMPORTANT! – BEFORE USE
You are responsible to ensure that any equipment you use is suitable for the environment in which it
will be used.
You are also responsible for the safety of the equipment.
IMPORTANT – The heater must be connected to a suitable electrical supply using an Ex Zone 1
approved plug.
You must make sure that the equipment is selected, installed and used in accordance with
regulations (e.g. EN60079-14) plus any other local laws that may exist, and is checked before use.
THIS EQUIPMENT MUST BE KEPT IN A SUITABLE STATE BY REGULAR INSPECTION AND
MAINTENANCE PROCEDURES.
Important - The heater should not be stored in ambient temperatures below -30°C for more than 24hrs.
This equipment must only be used for its intended purpose.
The certification details of the plug can be found on the plug type label.
If you are unsure about anything, get help before proceeding.
MOVING AND SETTING UP THE HEATER
The handles formed into the endplates and the frames are both suitable for using to lift or carry
the heater. Ensure you have assessed the resources and safe handling methods required before
proceeding with good lifting practices to prevent bodily injury. For further information please refer to
applicable statutory regulations and your company/site guidelines relating to manual handling at work.
Take necessary precautions to protect yourself and other workers from risk of hearing loss, by
assessing where the heater should be positioned in relation to where people are working and using
applicable ear protection. For further information refer to statutory regulations and your company/
site guidelines relating to noise at work.
IMPORTANT - This SA FLEXIHEAT ATEX Heater must not be taken into a Zone 0 Hazardous Area.
The heater is to be used in a horizontal orientation only.
The heater should not be moved while switched on; turn off the heater before moving and then move
to new position before switching on.
Ensure there are no obstructions within 1 metre of the inlet or outlet of the heater, as this will
restrict the airflow and cause the safety thermostat to stop the heater functioning.
Beware of using heater in environments where small particles (e.g. gravel) can be drawn in by the
heater due to the high airflow.
Only SA CYCLONE Anti-static Ducting should be used with the heater.
When using duct ensure there are no obstructions to airflow in either inlet or outlet duct lengths.

8
DURING USE
SWITCHING ON AND RUNNING THE HEATER
Position and set up the heater according to the previous instructions.
Check that the heater is safe for use and has no defects, paying particular attention to the heating
elements, the impeller and both finger guards.
Ensure there are no loose particles inside the heating chamber.
The heater can then be connected to the correct supply. The supply voltage should be within the
voltage range shown on the product type label.
Turn the heater on using the power switch.
CHECK THAT THE AIR IS FLOWING IN THE DIRECTION INDICATED BY THE ARROW ON TOP OF THE
HEATER. IF IT IS NOT FLOWING IN THIS DIRECTION SWITCH OFF THE HEATER. REFER TO TROUBLE
SHOOTING SECTION ON PAGE 10 & 11.
In cold conditions it may take up to 5 minutes before any warm air can be felt at the outlet.
The heater contains an automatically resetting thermostat which controls the temperature of the
discharged air.
If the heater stops functioning or does not switch on, it should be taken into safe area before
inspecting control box. The heater contains a manual-reset thermal cut-out and fuses, which may
stop the heater functioning in the event of a fault. Please refer to the trouble shooting section on page
11.
If the heater gets damaged during use it must be immediately disconnected from the supply and
removed to a safe area for inspection and test. Correct use of the equipment should help to ensure
that it is not damaged. If you would like more information on ancillary products, please contact the
Sales Team on 0845 844 4000 or [e-mail].
To avoid risk of injury do not touch the finger guards during or immediately after use when they are
likely to be hot.
The fan blade rotates at high speed and care should be taken to ensure nothing protrudes through the
finger guards while the heater is running. Do not operate the heater with missing or damaged finger
guards.
AFTER USE
INSPECTION & MAINTENANCE PROCEDURES
Operator is responsible to comply with the following regulations: EN60079-17 and EN60079-19

9
The basic resetting procedures as shown in the following trouble shooting section are the
only repairs or adjustments that can be done by the user and these should be carried out by a
Compex qualified electrician. Carrying out work beyond this without permission and instruction
from SA Equip will invalidate any warranty and could compromise the safety and functionality of
the equipment
Only original spares from SA Equip must be used. The use of any other parts will invalidate any
warranty and could compromise the safety and functionality of the equipment. SA Equip offer a
full repairs service. Contact the SA Service Centre on 0845 844 4000 or [e-mail]
for more details.
The following tasks should be carried out on a periodic basis (3 -6 months depending on usage and
site requirements):
External - Visually inspect all external parts and ensure no deformation has taken place due
to mechanical loading or impact. Check all information and warning labels are present and
legible. Do not allow dirt and/or dust to accumulate on the external surfaces of the equipment
and pay particular attention that the finger guards are not damaged and are free from dust and
dirt and any debris should be removed. The heater should be cleaned when necessary using a
damp cloth. If necessary use neutral soap. Do not spray or immerse in water and no abrasives,
detergents or solvents should be used. Check for any loose bolts or nuts.
Drum Internal –Visually inspect components inside drum for damage, excessive build-up of
dust, dirt and oil, paying particular attention to the heating elements, heat sink, motor casing
and impeller. Check that bolts in the underside of the enclosure are not loose.
Enclosures – Check that supply cable gland is tight, both on the enclosure and on the cable.
Inspect the mains supply cable for damage. Verify that electrical enclosures are clean, dry and
free of foreign materials and free of corrosion. Check lid gasket for damage. Check all bolts and
nuts are tight.
Electrical Enclosures- Check the all conductors are free of damage. Check the tightness of
all terminal connections. Tighten loose connections. Check that the correct fuses are present
in the fuse holders – fuse rating and type are printed on label mounted to inside of enclosure.
Ensure enclosure lids are in place with all fasteners present and tight (3Nm).
Temperature Controls -Check the thermostat settings have not been tampered with – the red
paint seal on the temperature setting indicator should be unbroken.
Run Test - To verify operation, turn on heater and run for a minimum of five minutes and check
the air exiting the outlet warms up and then the controls cut in and the air cools down as in the
normal cycle pattern of the heater. Check unit runs with normal amount of vibration and there is
absence of anomalous noises.
Electrical Test - Check continuity across each pole of the contactor by testing between
terminals S1-H1, S2-H2 and S3-H3 with the power supply isolated – there should be no
continuity. Conduct electrical earth bond, insulation resistance and phase tests or other tests
as required by site regulations.

6
10
TROUBLESHOOTING
NORMAL FLUCTUATION IN AIR TEMPERATURE
Please note there will be some fluctuation in temperature of heated air during normal operation of the
heater and should not be regarded as a fault. This is due to the automatically resetting thermostat
which limits the temperature of the discharged air.
FAULT FINDING PROCEDURE
This should only be carried out by a Compex qualified electrician. The heater contains a manual-
reset thermal limiter, 3 input fuses and 3 motor fuses which in the event of a fault may stop the heater
functioning.v
AIRFLOW RUNS IN WRONG DIRECTION
The heater is supplied with phase cables wired according to the following colour convention:
L1 - BROWN // L2 - BLACK // L3 - GREY
If your supply has phases wired in a different order this will cause the motor to rotate in the wrong
direction. If possible the phase connection in the electrical supply should be changed but otherwise
the phase connections in the plug fitted to the supply cable can be changed ensuring it is refitted in
accordance with the plug manufacturer’s instructions.
PLEASE NOTE:
That the heater enclosures
must not be opened in a
hazardous area or while the
heater is energised

11
THE FLOW DIAGRAM BELOW ILLUSTRATES THE
PROCEDURES FOR THE FOLLOWING POSSIBLE SCENARIOS:
HEATER RUNNING BUT NO HEAT IS GENERATED
This means that only the fan is functioning and not the heating element, and is likely to be due to the
thermal limiter cutting out to stop the elements getting to excessive temperatures.
iRemove the bolts from the top of the heating element control enclosure and pull up the lid
taking care of the attached earth cable.
ii Reset the limiter by pushing the limiter reset button as shown in Image: No. 6
iii Replace lid ensuring gasket is in place, hand tighten insert all bolts with washers and then
tighten to 3Nm.
HEATER DOES NOT RUN AT ALL
This can be caused by either the input fuses or the motor fuses inside the electrical control box
enclosure tripping. This could be caused by a power supply problem, or misuse of the unit such as
blocking the airflow.
iRemove the bolts from the top of the electrical control
enclosure and pull up the lid taking care of the attached
earth cable.
ii Check the 3 input fuses and replace if required with 32A gG
fuse part no. TRASP140032G
iii Check the 3 motor fuses and replace if required with 4A gG
fuse part no. TRASP14004G
iv Replace lid ensuring gasket is in place, hand tighten insert
all bolts with washers and then tighten to 3Nm.
If after these actions the heater still does not work or the
problem persists, there is likely to be a fault in the heater
and it should be returned to SA Equip for investigation.
Contact the SA Service Centre on [phone]
or [e-mail] for more details.
Open
element
box and
reset
Replace
fuses
Open
control
box
Does
the heater
function?
Have
any fuses
tripped
Heater not
functioning
Contact
SA Equip
If problem
persists
contact
SA Equip
NO
NO
NO
YES
YES
YES
NO
Does
the fan
run?
Only to be carried out by a
Compex qualified electrician.

12
SPECIFICATION
SAPH18/440 - SA FLEXIHEAT ATEX Heater 18kW
SUPPLY VOLTAGE RANGE 400 to 440VAC (+/-10%)
3 phase 50/60hz
The heater will be supplied fitted with either a 3P+E
or a 3P+N+E plug as requested at time of order.
NOMINAL OUTPUT POWER 18kW @440VAC (15kW @400VAC)
Output power will vary according to the actual voltage
of the supply.
NOMINAL CURRENT DRAW @ 400V Run 26A @ 440VAC (23A @400V)
Start-up 32A @ 440VAC
DIMENSIONS 760mm x 560mm x 560mm (l x w x h)
WEIGHT 55kg (excluding cable)
FREE AIRFLOW 2130m³/h (1253cfm) @ 50Hz
2560m³/h (1506cfm) @ 60Hz
AIR SPEED 15.5m/s (51ft/s) @50hz
16.3m/s (54ft/s) @60hz
NOISE LEVEL 83dbA at 1 metre
TYPICAL TEMPERATURE RISE Approx. 20°C above ambient
DUCT FLANGE SIZE 300mm Diameter - Use 30cm
SA CYCLONE Anti-static Ducting- see PAGE 15.

13
CERTIFICATION
The SA FLEXIHEAT ATEX Portable Heater is ATEX certified as transportable equipment for use
in Zone 1 and Zone 2 Gas areas. Each heater has a marking plate bearing the specific product
information and certification details as follows:
ATEX CERTIFICATE NUMBER Baseefa14ATEX0032X
ATEX CERTIFICATE NUMBER BAS21UKEX0007X
CERTIFICATION MARKING Ex II 2 G
Ex db eb h mb IIB T3 Gb
Ex II 2 G Ex Explosive Atmospheres Symbol
Indicates compliance with ATEX directives.
II Equipment Group II
Certified for use above ground (i.e. not mines).
2 G Equipment Category 2 - Gas
Certified for Zone 1 classified areas (inc. Zone 2).
Ex db eb h mb IIB T3 Gb Ex Explosive Atmospheres Symbol
Indicates compliance with ATEX directives.
db eb h mb Indicates protection methods used to achieve ATEX
certification.
IIB Gas equipment group IIB
Suitable for areas with IIA, IIB gases.
T3 Temperature Classification (Gas)
Surface temperature of the heater will not exceed 200°C.
Gb Equipment Protection Level – High Level of Protection
Certified for Zone 1 classified areas (inc. Zone 2).
OPERATING TEMPERATURE Ta -40°C to +40°C
Certified for use in areas with ambient temperatures
within this range.
INGRESS PROTECTION IP65
The heater is suitable for use outdoors in all normal weather
conditions as the electrical enclosures have at least this
level of ingress protection.
SPECIFIC CONDITION OF USE The heater is to be used in a horizontal orientation only.
OTHER CERTIFICATION The heater is also compliant with the following regulations.
2004/108/EC EMC
2006/42/EU Machinery
2011/65/EU RoHS

14
DECLARATION OF CONFORMITY

15
WARRANTY
The SA FLEXIHEAT ATEX Heater has a product warranty of one year from the date of delivery.
The warranty does not cover cables. The warranty only covers defects in materials or
workmanship.
User abuse and/or failure to comply with these instructions will invalidate the warranty and
may also invalidate the safety certification.
The information supplied in this User Guide does not in any way remove any responsibility from
the user of the heater.
For more information please see our full Conditions of Sale, available on request.
COMPATIBLE WITH THE
FOLLOWING SA PRODUCTS:
ANTI-STATIC DUCTING 30cm
PRODUCT CODES: SAFD30/05-EX – Length 5m
SAFD30/10-EX – Length 10m
DUCT COUPLER 30cm
PRODUCT CODES: SAFD30/CU
MDU WITH 32A SOCKETS
PRODUCT CODES: PNDU440/10-2EX/CEA – 3PH&E

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SA Equip LLP
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EH52 5NE
United Kingdom
Copyright © 2021 SA Equip LLP Information and specification is subject to change without notice. Issue 10 02/2021