ETT DESHU SM/HPE+ Owner's manual

Éner
g
ie Transfert Thermique
ermique
Technical instructions
for Installation
A different climate
Environmental control solutions
Version October 2015
DESHU SM/HPE+

IMPORTANT
The validity of our guarantee is conditional upon compliance
with these technical instructions as stipulated in ETT General
Terms of Sales.
Maintenance shall be performed by a specialised company.
Special attention shall be paid to cleaning and changing
filters regularly.
We hope that you will enjoy your ETT equipment and we trust
that it will provide you total satisfaction.

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Transfert
Thermique
Contents
A. Receipt................................................................................................................................................................................. 4
B. Handling.............................................................................................................................................................................. 4
C. Storage................................................................................................................................................................................. 9
D. Installation......................................................................................................................................................................... 9
E. Hydraulic connections....................................................................................................................................... 9
F. Safety precautions............................................................................................................................................... 13
G. Commissioning......................................................................................................................................................... 16

Technical instructions
for Installation
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DESHU - October 2015
A. Receipt
Each unit is checked and tested at the factory, prior to shipment, and a test certificate is issued. Unless
otherwise requested in the project specifications, units are delivered fully assembled and charged with
pressurised refrigerant.
Unless otherwise specified, units are delivered without packaging.
1. At arrival on site, check the unit for transport damage.
2. If you detect or suspect any damage, please note any necessary reservations on the transport document.
Confirm your reservations in a registered letter within 24 hours and inform your sales contact person.
3. Remove the adhesive tape used to prevent doors from opening during transport.
4. If necessary, you will find your access key fixed to the technical section ventilation grid or to the handle. A
spare key is also fixed to the document holder, next to the electrical board.
5. Make sure that all unassembled components are included (refer to the check list of accessories).
6. For handling and assembling instructions, refer to the installation instructions located in the document
holder, next to the electrical cabinet.
B. Handling
Use the supplied lifting lugs to lift and transport the unit using a forklift or a crane.
When using a crane, use slings or nylon webbing and shackles to handle the unit. Extend with chain slings if
necessary.
If you use short slings, always use a lifting beam to avoid damaging the roof or scratching the casing.
Lifting loads: for more information about weight distribution, please contact the project coordinator at the
following email address: [email protected]
1/ General information
1.1/ Installing a packaged unit
• Handling with a crane
Units are equipped with lifting lugs on casing (on the lower
part).
Slings minimum length must be twice the unit width plus the
unit height (see example below).
Slowly pull the chains or slings taut until the unit starts moving.
Take the unit to the installation area.
Example: L = A + B = (2 x 2.4) + 2 = 6.8 m minimum
A
r
A
2.40 m
2 m
B

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Technical instructions
for Installation
• Handling with a forklift
Place blocks under the frame in order to slide the forks under the unit.
To place the blocks, lift one side of the unit with the forks extremities on the U-profile of the unit frame.
1.2/ Installing a unit delivered in several blocks
Some units are delivered with lifting lugs unassembled. For assembly instructions, please refer to paragraph “5/
Assembling/Disassembling the lifting lugs”, page 8.
In some cases, the main power switch handle may be removed and stored in the technical section to avoid
damage during handling. Reassemble the handle once the unit is installed.
Slowly pull the chains or slings taut until the unit starts moving. Take the unit to the installation area.
• Step 1
Install block 2.
• Step 2
Install block 1 to create the first assembly.
!Warning:
Apply sealant between the blocks, at each step.
• Step 3
Install block 3 on the left to complete unit assembly.

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1.3/ Panels assembly
Once the blocks are installed side by side, assemble them as explained below.
• Detailed view of the block
• Block/floor assembly
• Block/side panel assembly (without double skin)
Polyurethane sealant
PVC foam gasket 9x3
Side panel (1.8 mm thick)
Double skin (1.3 mm thick)
TH M8X25 zN screw
Polyurethane sealant
PVC foam gasket 9x3
Polyurethane sealant
PVC foam gasket 9x3
TH M8X25 zN screw Stiffener (2.7 mm thick)

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Technical instructions
for Installation
• Block/side panel assembly (with double skin)
1.4/ Cover strips and angles
For units delivered in several blocks, assembly screws and polyurethane sealant may be found in a referenced
box in the technical section.
Coat the support surfaces with sealant (see drawing), join both elements and bolt them together. Use a cover
strip to protect the assembly.
2/ Installing a unit on frame
ETT units may be installed on a customer-supplied frame.
In that case, the unit may be laid directly on the frame. It is
recommended to bolt the unit to the frame or to fix it with a
beam clamp system. If requested, holes may be pre-drilled in
the factory where needed.
For some applications (cinemas, theatres, etc.), anti-vibration
pads or mounts may be needed to reduce structure-borne
noise. Refer to a specialised engineering office for anti-vibration
mounts selection. If requested, holes may be pre-drilled in the
factory for anti-vibration mounts assembly.
Polyurethane sealant
PVC foam gasket 9x3
TH M8X25 zN screw
Sealant
Vertical angle
Roof cover strip

Technical instructions
for Installation
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3/ Mounting a unit on feet
Before definitive installation, lift the unit and screw the feet to the frame (holes
are pre-drilled at the factory).
Feet and assembly screws may be found in separate identified boxes in one
of the sections of the unit (refer to the check list of accessories delivered with
the unit).
• Dimensions
4/ Mounting the cowls
Cowls are delivered in three parts which may be found inside the unit (refer to the check list). Polyurethane
sealant and rivets may be found in a referenced box in the technical section of the unit.
• Procedure
>Assemble the side panels (1) with the deflector (2) using
rivets.
>Apply sealant into the groove.
>Coat a cowl part with sealant.
>Rivet the cowl to the unit.
>Smooth the joint.
5/ Assembling/Disassembling the lifting lugs
Some units are delivered with lifting lugs unassembled to facilitate
transport.
The lifting lugs and assembly screws may be found in a referenced
box inside the unit (refer to the check list).
It is recommended to remove the lifting lugs once the unit is
definitively installed to avoid corrosion.
6/ Disassembling the moving part holders
To avoid transport damage, some components such as the fans
mounted on anti-vibration mounts are equipped with holders
to hold them in position during transport. Holders are easy to
recognize through their red colouration. They must be removed
before unit commissioning.
GORGE
GROOVE

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Technical instructions
for Installation
C. Storage
>It is recommended to inspect regularly the unit during storage.
>Some components require certain precautions in case of prolonged storage (more than 6 months). For
instance, electric motors and fans shall be rotated manually to prevent stuck bearings.
>Do not store the equipment at temperatures above 60°C.
>The unit must be stored in a safe place to avoid intentional or accidental damage.
D. Installation
The installation area or the feet must be levelled and sturdy enough to bear the weight of the unit. The
installation area must be horizontal.
A tolerance of plus or minus 1 % is allowed to avoid water accumulation in the condensate drain pans and to
ensure a correct compressors lubrication.
If the installation support is not flat, use shims to level the unit (doors should close properly).
Provide 2 m clearance in front of the exchanger and 1 m clearance around the unit to facilitate servicing and
maintenance.
E. Hydraulic connections
1/ Water pipes
Concerning chilled water or hot water auxiliary coil, respect pipelines inlets and outlets and lag the pipes.
To ensure satisfactory operation of the piping network outside of the unit, we recommend the following
equipment:
>Demountable fittings to facilitate circuit disassembly.
>Filters prevent foreign matter from entering the circuits and protect the valves or the pump.
>Thermometers allow water inlet and outlet temperatures monitoring.
>Stop valves to isolate a circuit for maintenance operations.
>Pressure gauges to display water inlet and outlet pressures and to check water flow rate. Stop valves
must be installed between the pressure gauges and the circuits.
If the unit is exposed to temperatures below 0°C, install electric heaters on all water pipes subject to frost.
Install drain valves at the lowest points and air vents (manual or automatic) at the highest points of the piping.
Nota:
Do not leave water in the exchangers during installation if the equipment is exposed to frost.
Otherwise, the guarantee on the exchangers will be void.
2/ Water condenser(s) piping
Pipe end is plain if the optional isolation valve has not been selected.
Piping supplied by ETT is made of CPVC, refer to the drawings for more information.
Water condensers are made of 316L stainless steel as standard, suitable for chlorine water treatment only. For
other treatments, request titanium condensers.

Technical instructions
for Installation
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3/ Condensates evacuation/Siphons
Most of our units include external rubber siphons delivered in a box. The siphons are designed to operate
with positive or negative pressure up to 1000 Pa in the corresponding unit section. In case of more significant
positive or negative pressure, additional and suitable siphons are required (to be supplied by the installer).
Please take into account the siphons for unit installation. If required, all rubber siphons can be connected to
a PVC header with a slope of 1 cm per metre minimum.
!Warning:
Positive pressure sections and negative pressure sections must be equipped with separate
evacuation pipes. Separate headers are required.
Siphons
Frame channel U 80 U 100 U 125 U 140 U 160 U 200
Min. height (H) 156 136 111 96 76 36
Minimum height below the unit = 236 - Frame section
40
236
45
FRAME SECTIONMIN. HEIGHT BELOW UNIT
(H)
(A)
Header PVCb d40
(to be supplied by the installer)
Ø 22 EXT

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Technical instructions
for Installation
4/ Electrical connections
4.1/ Power supply
Electrical connections are usually on the side of the unit (or on top), in the axis of the main power switch. For
electrical supply location, refer to the technical documentation or to the unit detailed drawing.
Electrical cable size shall be determined according to the information provided in the commercial offer and
confirmed in the wiring diagrams.
ETT does not select the type of wire to use, as the wire section depends on the installation length and type
according to the low voltage electrical board connection. The installer shall make this calculation.
Power supply specification must comply with the specifications of the wiring diagrams delivered with the unit.
Cable type and cross-section suitable for connection to the main power switch are indicated on the wiring
diagrams. Do not use aluminium unless specified.
Unless otherwise requested in the order, wiring is designed for 400V 3-phase power supply, with insulated
earth, without neutral (TT system according to French standard NF C 15-100, set on the day of delivery).
If the earthing scheme is different, ETT shall not be responsible for bringing it into compliance.
All the wiring performed on site must comply with applicable regulations (appropriate wire cross-section to
avoid line voltage drops or overheating).
Our technician will control phase sequence during commissioning. In case of wrong phase sequence, any
damage to the unit will not be covered by the guarantee.
Our units are not protected against the risks of lightning strike. If necessary, it is the responsibility of the installer
or the client to perform a lightning risk assessment (LRA).
If the site is subject to a peak load reduction agreement, it may disrupt equipment operation (risk of controller
or drives fault). We can propose a technical solution to handle peak load reduction without affecting
equipment operation.
!Warning:
Operation with a non-compliant supply voltage, or with an excessive phase unbalance
(5% maximum), is considered improper and voids the guarantee.
4.2/ Temperature probe connection
The temperature probe is installed on return air side.
4.3/ Humidity probe connection
The humidity probe is installed on return air side.
The probe is delivered in a plastic bag to avoid saturation during transport.
The ETT technician will install it during commissioning.

Technical instructions
for Installation
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4.4/ Electrical connection for units delivered in several blocks
Units delivered in several blocks (up to 3 blocks) are wired at the factory with quick connectors for power
and control connection (see illustrations below) to facilitate on-site connection by the installer. All connectors
are labelled.
For units delivered in more than 3 blocks, electrical wires are numbered to facilitate on-site connection.
5/ Ducts
>Respect inlet and outlet air sections on the unit.
>Ensure air tightness between duct segments to limit pressure drop.
>Prevent foreign matter from entering the network (tools, rags, etc.).
Power connectors
Control connectors

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Technical instructions
for Installation
6/ Specific recommendations for thalassotherapy centres
Indoor conditions (moist and salt in the air) and outdoor conditions (moist and salt air, presence of sand)
require specific protection on unit internal components (fans and exchangers).
We recommend to install the following protections on both return air and fresh air for DESHU units installed in
thalassotherapy centres:
>A drift eliminator to retain large salt or sand particles from outside.
>A G4 pre-filter or a PRP3 washable filter.
>A fine polypropylene filter (F7 or F9), also called coalescer filter. Do not use a filter with fibreglass media.
The filter can be cleaned at least twice (desalinate in a tray and dry). Refer to the maintenance manual
for cleaning instructions.
SAKAPHEN coating (Heresite treatment) is recommended for the exchangers. It shall be applied on the supply
and exhaust exchangers and on the heat pipe. Clean the exchangers monthly (rinse with non-pressurised
fresh water). The water exchangers must be made of titanium.
F. Safety precautions
Equipment installation, commissioning and servicing involves several potential hazards: high pressure, high
temperature, rotating parts (motorised fan), electrical components, work at a height (rooftop, elevated
structures, etc.).
Only qualified and experienced installers and maintenance mechanics are authorised to install, commission
and maintain such equipment.
Routine maintenance operations, such as coils and filters cleaning, or filter replacement, may be performed
by non-specialised staff. All other maintenance operations must be performed by qualified staff.
Follow all precautions outlined in the documentation, instructions, labels and nameplates and observe all
relevant safety precautions:
>Respect all safety instructions.
>Wear safety glasses and work gloves.
>Wear a mask for cleaning or replacing filters.
>Handle, lift and install heavy equipment very carefully.
>Follow the special precautions when working at a height (on the top the unit). Walk only on panel
junctions to avoid possible deformation.
!Warning:
Make sure that the power supply is turned off before any maintenance or repair operation to
avoid electric shock and prevent risk of injury from moving parts.
Make sure that the power supply is turned off on the main switch before opening the door of the
ventilation section containing the fan, the motor and the transmission. They might start according
to the control at any time.

Technical instructions
for Installation
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DESHU - October 2015
1/ Instructions concerning refrigerant fluid handling and associated risks (according to
Westfalen documentation)
1.1/ Important information
Refrigerants R-134A, R407C and R-410A are liquefied hydrofluorocarbons (HFCs) under pressure. As their boiling
point is low, they are extremely volatile and cool down very quickly in case of evaporation. As steams are
heavier than air, insufficient ventilation can create a strong concentration near the ground. All the refrigerants
mentioned above have low toxicity. Maximum acceptable concentration (MAC) levels is 1000 ppm according
to the manufacturers. Very high concentration levels may cause dangerous arrhythmias and suffocations due
to the lack of oxygen. The HFCs mentioned above are not flammable under normal conditions of pressure
and temperature. However, they are flammable when mixed with air under high pressure. Such conditions
must imperatively be avoided. Thermal decomposition (when exposed to an open flame for example) results
in the formation of toxic and corrosive vapours such as hydrogen fluoride. The refrigerants mentioned above
are well-known substances and do not present any risk for human health or the environment when properly
handled. However, it is important to adopt a responsible attitude when in contact with refrigerants.
1.2/ Individual protection
As for any operation that involves consumable materials handling, hygiene rules must be respected when
handling refrigerant. Wear appropriate protective clothings, protective gloves and glasses or mask to avoid
skin or eye contact. Spatters or droplets sprays can cause frostbite and eye damage.
Ensure good ventilation of the working area to avoid inhaling high vapours concentration levels.
Smoking and alcohol consumption are prohibited during work.
Avoid exposing refrigerants to an open flame to prevent the formation of toxic decomposition products.
Consequently, all welding and brazing activities must be performed on parts with no trace of refrigerant. Good
ventilation is required. In case of emergency work in high refrigerant concentration levels, self-contained
breathing equipment is mandatory.
1.3/ Technical room safety
Constantly monitor the concentration of refrigerant in room air to make sure that exposure limit values are
respected. Electronic detectors are available through specialised distributors.
With good ventilation/extraction limit values are easily respected. Refrigerant discharge pollutes the
environment and generates unnecessary costs.
Also, it is important to check equipment tightness regularly and to repair any detected leakage immediately.
1.4/ Precautions for handling
Liquid refrigerant transfer may create electrostatic charges. Provide earthing to prevent electrostatic charge
build-up It is recommended to wear insulated gloves when transferring liquefied gas, as very cold gas may
be released.
1.5/ Refrigerant safety
These safety measures have been in place for a long time in the refrigeration industry, without any extra cost.
When properly handled and used, the non-toxic and non-flammable refrigerants mentioned above offer
optimal safety and environmental friendliness.
1.6/ Fire emergency procedure
The fire fighting procedure depends on the environment. Fire fighters should wear self-contained breathing
equipment and full protective clothing. Some refrigerant cylinders may burst as a result of overheating. Cool
them down using a water jet.

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Technical instructions
for Installation
1.7/ Emergency first aid procedure
Handling precautions provide reliable protection against risks for health. However, if an emergency occurs,
stay calm and act cautiously. Proceed as explained below and seek medical advice.
IF INHALED: Remove person to fresh air and keep him/her warm and let him/her rest. Apply artificial respiration
if breathing becomes irregular or stops. In case of cardiac arrest, proceed with cardiac massage.
IF ON SKIN: Defrost exposed clothing and skin with water and rinse thoroughly before removing clothes.
!Warning:
Caution! Frostbite may cause clothing to stick to the skin.
IF IN EYES: Rinse immediately and thoroughly for at least 10 minutes using clear water or an eye-cleaning
solution.
IF SWALLOWED: Do NOT induce vomiting. If person is conscious, rinse mouth with water and give one glass of
water.
Medical advice: Administer symptomatic treatment and additional care as indicated. Do not administer
ephedrine or adrenaline products which may cause cardiac arrhythmia, and even cardiac arrest.
2/ Special instructions for chilled water circuits
Chilled water circuits, in particular freon-to-water exchangers, are highly vulnerable to frost damage.
Consequences can be significant: exchanger or compressor replacement, etc. Take all necessary precautions
to avoid such problems.
The installer shall make sure that:
>Glycol is used as antifreeze protection.
>Water flow rate is sufficient in each exchanger.
>Appropriate precautions are taken in case of prolonged shutdown.
Failure to comply with these instructions will void equipment guarantee.
Nota:
ETT will not be liable for frost damage.
The user shall:
• control regularly, using a density meter for example, that the circuit is well protected for the
effective outside temperature;
• start units regularly when shutdown to avoid deterioration;
• drain circuits when necessary (in case of power outage, failure, etc.).

Technical instructions
for Installation
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DESHU - October 2015
G. Commissioning
• Please remember:
>For the guarantee to be valid, equipment commissioning must be performed by a technician authorised
by ETT.
>To request commissioning, fill in the commissioning request form (available on the www.ett.fr website in
the ETT Services section) and send it to ETT Services ([email protected]).
>The prerequisites listed below must be met. Any additional intervention resulting from failure to observe
the prerequisites will be charged.
>The installer (or a representative) must be present throughout the commissioning intervention. Otherwise,
ETT will note be able to validate peripheral equipment commissioning (flow rate adjustment, control
settings, power switch connection, etc.) and will therefore have to express reserves.
• Prerequisites for commissioning:
1. A prevention and safety plan has been implemented and ETT personnel can safely access the unit
throughout the intervention.
2. Crankcase heaters have been activated 12 hours before commissioning.
3. Hydraulic connections have been made, pressure tests and purges have been performed.
4. Water filters have been installed (for units on water loop).
5. Gas connections and pressure tests will be realised.
6. Fresh and exhaust air cowls and sealing gaskets have been installed according to our recommendations.
7. Air filters have been installed on all units.
8. Air duct connections have been made and all valves are set.
9. Probes, bus and displays have been connected according to our wiring diagrams and recommendations.
10.An additional bus has been installed on each unit according to our wiring diagrams for computer
connection to the controller [if the unit is controlled by ACTION FROID].
11.Ethernet connecting cables for remote supervision have been installed on each unit according to our
wiring diagrams.
12.A telephone line has been connected.

www.ett.fr
56 route de Brest - BP26 - 29830 Ploudalmézeau - France
Tel: [phone] - Fax: [phone]
Export Contact: [phone] - ETT Services: [phone]
Design: ETT - Document printed by an environmentally friendly printer using vegetable based ink on PEFC paper created from sustainably-managed forest.
A different climate
Environmental control solutions
É
ner
g
ie Transfert Thermiqu
e