S&P CADB-HE BASIC Series User manual

CADB/THE BASIC
Heat recovery unit with integrated control
EN

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INDEX
1. INTRODUCTION .............................................................................................................................................................3
2. SAFETY REGULATIONS AND “CE” MARKING ...............................................................................................................3
3. GENERAL INSTRUCTIONS ............................................................................................................................................3
4. UNIT LABELLING ..........................................................................................................................................................3
5. HANDLING ...................................................................................................................................................................4
6. INSTALLATION ..............................................................................................................................................................5
6.1. Introduction.............................................................................................................................................................5
6.1.1. Outdoor installation ......................................................................................................................................9
6.2. Dimensions and free space for maintenance ......................................................................................................10
6.3. Mounting process of an additional supply filter...................................................................................................13
6.4. Range specifications.............................................................................................................................................13
6.5. Connections ..........................................................................................................................................................13
6.5.1. Piping and duct connections.......................................................................................................................13
6.5.2. Condensate drainage..................................................................................................................................13
6.5.3. Electrical connection ..................................................................................................................................14
6.5.3.1. External Touch Display (ETD) control connection .........................................................................14
6.6. Configurations ......................................................................................................................................................15
7. CONTROL FUNCTIONS................................................................................................................................................16
8. CONTROL SCHEMES ...................................................................................................................................................17
9. CONTROL BASIC OPERATION ....................................................................................................................................17
9.1. Description ...........................................................................................................................................................17
9.2. Main functions ......................................................................................................................................................17
9.2.1. Via the remote terminal supplied with the unit..........................................................................................17
9.2.2. Through integration to Modbus network (external BMS)...........................................................................18
9.3. Use of remote terminal - user level.....................................................................................................................18
9.3.1. Fan speed selection (Start / Stop / Speed adjustment)..............................................................................18
9.3.2. Free-cooling function setting .....................................................................................................................19
9.3.3. Setting the by-pass pass temperature in free-cooling mode....................................................................20
9.4. Advanced parameters configuration ....................................................................................................................20
9.4.1. Modification of predefined speeds..............................................................................................................21
9.4.2. Modification of the bypass opening setpoint (free-cooling mode).............................................................22
9.4.3. Fan selection that acts as a master (only available on units controlled via Modbus in COP mode) .........23
9.4.4. Operation at Variable Airflow (VAV) mode, depending on an external sensor
(CO2, temperature or relative humidity) .....................................................................................................23
9.4.5. Filter supervision........................................................................................................................................24
9.4.6. Fan status monitoring.................................................................................................................................24
9.4.7. Boost function - Forced High Speed (only available in models 04 to 27)...................................................25
9.4.8. Remote Stop-Start......................................................................................................................................25
9.4.9. Protection of heat exchanger unit ..............................................................................................................25
10. BUILDING MANAGEMENT SYSTEM (BMS) CONNECTION ........................................................................................26
11. INSPECTION, MAINTENANCE AND CLEANING..........................................................................................................32
11.1. Replacement of filters ........................................................................................................................................32
11.2. Filter installation ................................................................................................................................................33
11.3. Heat exchanger...................................................................................................................................................34
11.4. Condensation drainpipe......................................................................................................................................35
12. OPERATION ANOMALIES ...........................................................................................................................................36
12.1. General anomalies..............................................................................................................................................36
12.2. List of alarms......................................................................................................................................................36
13. WIRING DIAGRAMS.....................................................................................................................................................38
13.1. Models CADB-HE-D 04 to 27 BASIC...................................................................................................................38
13.2. Models CADB-HE-D 33 to 100 BASIC.................................................................................................................39
ENGLISH

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1. INTRODUCTION
Thank you for purchasing this appliance. It has been manufactured in full compliance with applicable
safety regulations and EU standards.
Please read this instruction book carefully, as it contains important information for your safety during
the installation, use and maintenance of this product.
Keep it at hand for future reference.
Please check that the appliance is in perfect condition when you unpack it, as all factory defects are
covered by the S&P guarantee.
2. SAFETY REGULATIONS AND “CE” MARKING
S&P technicians are firmly committed to research and development of ever more efficient products and
in compliance with current safety regulations.
The instructions and recommendations given below reflect current regulations, principally regarding
safety, and therefore are based on compliance with general regulations. Therefore, we recommend all
people exposed to hazards to strictly follow the safety regulations in force in your country. S&P will not
be held liable for any possible harm or damage caused by non-compliance with the safety regulations,
as well as caused by modifying the product.
The CE mark and the corresponding declaration of conformity are proof of the product’s conformity with
current EU regulations.
3. GENERAL INSTRUCTIONS
A hazard analysis of the product has been carried out as provided in the Machine Directive. This manual
contains information for all personnel exposed to these hazards, with the aim of preventing possible
harm or damage due to faulty handling or maintenance.
All maintenance operations (ordinary and extraordinary) must be carried out with the machine switched
off and the electrical power supply disconnected.
To avoid a possible accidental start up, place a warning notice on the electrical control panel with the
following text:
“Attention: control disconnected for maintenance operations”
Before connecting the power supply cable to the terminal strip, make sure the mains voltage corres-
ponds to the voltage indicated on the specifications plate of the unit.
Regularly check the product labels. If, due to the passing of time, they are no longer legible, they must
be replaced.
4. UNIT LABELLING
The machine may come with several pictograms that must not be removed. These signs are divided into:
• Prohibition signs: Do not repair or adjust when in operation.
• Danger signs: Warning of the presence of live elements inside the container bearing the sign.
• Identification signs: CE card, indicating product information and manufacturer’s address. The CE
mark indicates the product’s conformity with EEC standards.
Danger signs Prohibition signs

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5. HANDLING
The CADB/T-HE models 04 to 33 are delivered fixed with screws to the pallets.
The models 45 to 100 are equipped with a bed, due to its weight are supplied without pallets. The unit
can be handled by a pallet transporter, a forklift, or a crane.
The handling machines will be adapted to the load and the lifting conditions. In all cases, the lifting will
be done at the device’s base. The centre of gravity is located at the centre of the unit. The device must be
carefully manipulated only in the horizontal position.
Models 04 to 33
Models 45 to 100

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6. INSTALLATION
6.1. INTRODUCTION
Horizontal models size 04, 08, 12, 16, 21, 27 and 33
These models are designed to be installed hanging from the ceiling or located behind a false ceiling.
When installing the unit, is mandatory to distribute the unit weight between all the supports existing in
the units:
• CADB-HE 04: 4 supports (one in each corner)
• CADB/T-HE 08 to 33: 6 supports (one in each corner and 2 centered in each side)
Using studded rods (Ø 8 mm), it can be secured to the ceiling and levelled.
BdYZa%) BdYZah%-id((
B
C
AA
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Model A B C
4- 1558 798
8894 1788 948
12 869 1738 1088
16 994 1988 1278
21 1169 2338 1678
27 1169 2338 1678
33 1169 2338 1678
The model 04 does not have central support
The installer must ensure that the ceiling structure and the securing elements can bear the weight of
the device, taking into account that it is a dynamic load.
To prevent the transmission of vibrations from the unit to the rest of the installation, it is necessary
that the installer use specific isolation elements, such as antivibration devices in the supports, flexible
sleeves between the unit and the ducts, and flexible couplings between the water connections and the
pipelines.
Model Weight (kg)
4147
8183
12 190
16 235
21 333
27 370
33 420

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Vertical models
The models size 4 to 27 are supplied with support feets, while the models size 45 and 60 are supplied
with a perimetral bed. This bed must be in contact with the ground or with a flat surface. It is essential
that the weight of the equipment was distributed between all points of support to prevent unit defor-
mation.
The installer must make sure that the ceiling structure and the securing elements can bear the
weight of the unit, taking into account that it is a dynamic load.
Models 04 to 33
Model Weight (kg)
4149
8185
12 192
16 237
21 335
27 372
33 422
Models 45 to 100
Model Weight (kg)
45 597
60 730
100 862
Horizontal models of sizes 45 and 60
IMPORTANT!
Particularities in the installation of horizontal versions LH and RH
For a correct evacuation of condensation generated into the heat exchanger, it is necessary to install the
unit with a minimum slope of 3º to the side where the extraction fan is placed:

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SUPPLY FAN EXHAUST FAN
Horizontal models size 45 and 60 are supplied with a perimetral bed. This bed must be in contact with
the ground or with a flat surface. It is essential that the weight of the equipment was distributed between
all points of support to prevent unit deformation.
The installer must make sure that the ceiling structure and the securing elements can bear the
weight of the unit, taking into account that it is a dynamic load.
Model Weight (kg)
45 597
60 730
For all configurations
Once secured the device in correct position, the installer have to perform the connection to the air duc-
ting system, connection to the electric net, and in the case of versions with water coil, the connection
with closed circuit of hot water coil.
Inside of the unit are supplied the following accessories:
Drain**
a)
b) c)
x2 x2 x2 x1
Cable
(10 m)
Manual
Remote terminal*
x1 x1
* The remote controller is located inside the electric cabinet.
** In the models 45, 60 and 100 the drain is installed by default in the unit.

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The drain is composed by 3 pieces:
a) Drain pipe
b) Female screw
c) Joint ring.
Install the two drains as indicated in the following drawing:
a) Horizontal versions of CADB/T HE 04 to 33
b) Horizontal versions of CADT-HE 45 and 60
c) Vertical versions of CADB/T HE 04 to 33

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d) Vertical versions of CADT-HE 45 to 100
In these versions, the drainpipe and the siphon are supplied mounted in the unit.
6.1.1. Outdoor installation
Whenever possible, it is advisable to be mounted indoors. When it is installed outdoors,it is prefe-
rable to place the unit under a cover which offers enough protection to prevent rain falling directly
to the unit, or install the corresponding rain canopy (TPP accessory). Due to its design and the
position of its registers, it is preferable to use vertical versions (LV / RV) for outdoor installation.
In addition, these versions have feet that allow direct placement on the ground.
In horizontal version, models 04 to 33, ensure the sufficient space below the unit, to install a
siphons in the drain pipe.
If installed on the ground, sufficient space must be guaranteed under the unit so that it is possible
to install the corresponding siphons in the condensate outlets of the unit.
Drain pipe connexion
There is a Kit composed of 6 feet 5407067200 - KIT PIES CADB-HE, which facilitates the assem-
bly on floor of these versions:
2x Central supports
4x Corner supports
Detail of a CADB-HE 04 to 33 after the assembly of the KIT PIES CADB-HE

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Both in the case that the Kit feet is used, or if the unit is based on antivibration pads, it is essential
that the unit support was guaranteed on the 6 existing supporting points being all of them at a
same plane.
In the case of not supporting the unit on the central supports it is possible that deformation in the
structure of the unit could take place, making it impossible to disassemble the panels.
Suitable rain protection canopy, according to the heat recovery unit model:
Heat recovery unit model Rain protection cowl model
Horizontal (LH / RH) Vertical (LV / RV)
CADB-HE-D 04 TPP-HE-H 04 TPP-HE-V 04
CADB-HE-D 08 TPP-HE-H 08 TPP-HE-V 08
CADB-HE-D 12 TPP-HE-H 12 TPP-HE-V 12
CADB-HE-D 16 TPP-HE-H 16 TPP-HE-V 16
CADB-HE-D 21 TPP-HE-H 21-27-33 TPP-HE-V 21-27
CADB-HE-D 27 TPP-HE-H 21-27-33 TPP-HE-V 21-27
CADT-HE-D 33 TPP-HE-H 21-27-33 TPP-HE-V 33
CADT-HE-D 45 TPP-HE-H 45 TPP-HE-V 45
CADT-HE-D 60 TPP-HE-H 60 TPP-HE-V 60
CADT-HE-D 100 – TPP-HE-V 100
Risk of condensation inside the unit
In winter, during the night or during periods of prolonged unit stoppage, it is possible that con-
densations appear on some internal surfaces of the unit, as well as inside the electrical cabinet.
a) Install isolation dampers in air inlet and air outlet.
b) Add anticondensation devices in the electrical cabinet as: cabinet heating elements that pre-
vent condensation formation on cabinet surfaces and electronic components.
6.2. DIMENSIONS AND FREE SPACE FOR MAINTENANCE
a) Horizontal versions of CADB/T HE 04 to 33 (False ceiling installation)
Distances for maintenance in installations with access from the lateral panels
Conf. LH
Conf. RH
Access to control panel and fans
Access to filters and heat exchanger