Valeo THERMO DC 200 Manuale utente
Rev. 05/2020
Id.No. 11118910E
Installation and operating instructions
THERMO DC 200
Bus
HEATING SYSTEMS
II
Thermo DC 200
Highlighted words like Warning!, Caution!, ATTENTION: and NOTE: in these Installation and operating instructions signify the following precautions:
Other symbols used in these Installation and operating instructions:
This caption is used to indicate possible severe injuries
or fatal accidents if instructions or procedures are car-
ried out incorrectly or entirely disregarded.
This caption is used to indicate possible minor injuries
if instructions or procedures are carried out incorrectly
or entirely disregarded.
ATTENTION: This caption points to actions which may cause material
damage.
NOTE: This caption is used to draw attention to an important
feature.
Symbol
tightening
torque
Identifies in graphics parts (e.g. nuts, bolts) that are to
be mounted with a specific tightening torque. The tor-
que values are shown at the symbol and are binding.
Warning!
Caution!
NOTE: Subject to modification. In multilingual versions the German language is binding. The latest version of this document
is provided for download on www.valeo-thermalbus.com.
III
Thermo DC 200
Table of Contents
1 Statutory regulations governing installation 1
1.1 Statutory regulations governing installation 1
1.2 Model plate 2
2 Safety regulations 3
3 Use / Version 4
3.1 Installation example 5
4 Operating and maintenance instructions 6
5 Installation 7
5.1 Additional potential equalization (PE) 7
5.2 690 VDC supply line 7
5.3 Overcurrent protection / insulation
monitoring device 9
5.4 External power supply hook-up 10
5.5 Testing the installation 10
6 Maintenance 11
7 Faults, troubleshooting, repairs 12
8 Control elements 13
8.1 Switch or relay 13
8.2 Pre-selection timer 14
8.3 Operation indicator 15
9 Circulation pump 16
10 Switching thresholds 16
11 Installation of the heater - fitting of important
assemblies 17
11.1 Installation 17
11.2 Connection to the vehicle's cooling system 20
11.3 Installation of the circulation pump 21
11.4 Tightening torques 22
12 Technical data 23
13 Annex 26
13.1 Differing installation instructions for Thermo
DC 11126153_ 26
13.2 Differing installation instructions for Thermo
DC 11139411_ 29
13.3 Differing installation instructions for Thermo
DC 11141607_ 31
13.4 Differing installation instructions for Thermo
DC 11125620_ 33
IV
Thermo DC 200
1
Thermo DC 200 Statutory regulations governing installation
1 Statutory regulations governing installation
1.1. Statutory regulations governing installation
For the heater exists a type approval according to the ECE Regulations
R10 (EMC) No. 06 6641 and
R122 (Heater) No. 00 0377.
Installation is governed above all by the provisions in Annex 7 of the
ECE Regulation R122. In addition, the electrical safety requirements of
ECE Regulation R100 are to be observed.
NOTE: The provisions of these Regulations are binding within the
territory governed by ECE Regulations and should similar-
ly be observed in countries without specific regulations!
Extract from ECE Regulation R122, Annex 7:
4 The heater must have a manufacturer’s label showing the manu-
facturer’s name, the model number and type together with its rated
output in kilowatts. The operating voltage and the electric power must
also be stated.
7.1 A clearly visible tell-tale in the operator’s field of view shall inform
when the heater is switched on or off.
Extract from ECE Regulation R122, Part I:
5.3 Installation Requirements for Combustion Heaters and
Electrical Heaters into Vehicles
5.3.1 Scope
5.3.1.1 Subject to paragraph 5.3.1.2., heaters shall be installed
according to the requirements of paragraph 5.3.
5.3.2 Positioning of combustion heater
5.3.2.1 Body sections and any other components in the vicinity of the
heater must be protected from excessive heat and the possibility of fuel
or oil contamination.
5.3.2.2 The heater shall not constitute a risk of fire, even in the case of
overheating. This requirement shall be deemed to be met if the installa-
tion ensures an adequate distance to all parts and suitable ventilation,
by the use of fire resistant materials or by the use of heat shields.
5.3.2.3 In the case of M2 and M3 vehicles, the heater must not be po-
sitioned in the passenger compartment. However, an installation in an
effectively sealed envelope which also complies with the conditions in
paragraph 5.3.2.2 may be used.
5.3.2.4 The label referred to in Annex 7, paragraph 4 or a duplicate,
must be positioned so that it can be easily read when the heater is in-
stalled in the vehicle.
5.3.2.5 Every reasonable precaution should be taken in positioning the
heater to minimize the risk of injury and damage to personal property.
5.3.6 Heating air inlet
not applicable
5.3.7 Heating air outlet
not applicable
2
Statutory regulations governing installation Thermo DC 200
Applicable local regulations, laws and standards for electrical in-
stallations, in particular the provisions of ECE Regulation R100 are
to be observed by the vehicle manufacturer and should be appro-
priately implemented.
ATTENTION:
Failure to follow the installation instructions and the notes contai-
ned therein will lead to all liability being refused by Valeo. The
same applies if repairs are carried out incorrectly or with the use of
parts other than genuine spare parts. This results to the invalida-
tion of the type approval of the heater.
1.2. Model plate
The model plate must be protected from damage and must be clearly
legible when the heater is installed (otherwise a duplicate model plate
must be used).
NOTE: The year of the initial operation must be durably marked by
removing the year numbers that are not applicable.
Danger to life and health!
Warning!
Figure 1: Model plate (example)
Thermo DC
0 Hz / 30A
690 VDC / 20kW
3
Thermo DC 200 Safety regulations
2 Safety regulations
Installation, maintenance and repairs may only be carried out when
the vehicle's engine is not running and the high voltage supply is
switched off.
Before starting the work at the heater, it is to make voltageless acc.
to DIN VDE 0105-100 and this state must be ensured for the dura-
tion of the work.
In particular, the following safety precautions must be observed:
– switch off the power supply to the heater
– ensure it cannot be switched on again
– verify, system is voltage-free, all poles
– ground and short circuit (the de-energized circuit)
– cover or block neighbouring parts under voltage
Electrical cables and operating elements of the heater must be ar-
ranged in the vehicle in such a way that their functioning is fault-
less under normal operating conditions and cannot be hampered.
Work at electrical equipment may only be started if protective
measures against electric shock, short circuits and arcing faults
have been carried out.
Electrical work may only be performed by a qualified electrician for
HV systems in motor vehicles, craftsman, activity with repetitive
character. Training acc. to DGUV 200-005 (previously BGI 8686), at
least level 2.
NOTE:
The provisions of these Regulations are binding within the territory
governed by DGUV Regulations and should similarly be observed in
countries without specific regulations.
Country specific rules / standards are to be considered additionally.
High voltage! Danger to life!
Warning!
4
Use / Version Thermo DC 200
3 Use / Version
The fully electrical water heater Thermo DC operates independently of
the vehicle engine and is connected to the vehicle’s cooling and
electrical systems.
The electrical heater can be used in a depot for pre-heating purposes.
For this it is connected stably to the depot 690 VDC power supply.
Further more the heater also can be used in electric driven buses or
hybrid buses where a 690 VDC power supply is provided, in association
with the vehicle‘s own heating system:
– to heat the passenger cabin, and
– for pre-heating.
Deviating installation / use must be agreed in advance with the Valeo
product support.
The heaters are approved for horizontal installation only (see Figure 10).
The heater Thermo DC is approved for heating the diesel engine
and the passenger cabin of buses, but not for use in vehicles
subjected to the Directive 94/55/EC (ADR, TRS).
General Information / Safety
Check the information given on the rating plate of your heater / in the
technical data and compare this with your mains voltage!
In addition to the statutory regulations the specific connection conditions
of local electricity companies are to be observed.
No alterations to the electrical installation may be undertaken.
The installation and commissioning may only be carried out by a quali-
fied electrician.
Only have any work on the appliance carried out by a specialist
company or a qualified person.
The installation instructions are to be considered.
Under no circumstances touch the heat exchanger and the water
hoses during operation, in particular when they are overheated due
to lack of water.
Ensure an adequate distance to all surrounding parts and a sufficient
ventilation during installation.
Alternately use fire resistant materials or heat shields (see Statutory
Regulations governing installation, para. 5.3.2.2).
Danger to life and health!
Warning!
Hot surfaces!
Caution!
5
Thermo DC 200 Use / Version
3.1. Installation example
Figure 2: Installation example for the heater
1 Wall heater with blower
2 Heat exchanger at entry
3 Heater
4 Circulating pump
5 Roof heat exchanger
6 Vehicle engine
7 Driver’s seat heating system
8 Control panel
Water heating circuit – wall heater and roof duct heating system
Supply
Return
6
Operating and maintenance instructions Thermo DC 200
4 Operating and maintenance instructions
The Thermo DC heating appliance may not be operated at temperatures
of more than +85°C. Amount of antifreeze in the water circuit - see
technical data.
ATTENTION:
The heaters may be only used in closed vehicle systems for war-
ming up water.
They must not be operated in the depot unattended for a longer
period. The pump operation, the water cycle and the water tem-
perature of the vehicle should be monitored. In case of any
malfunction make the heater immediately voltageless.
Another utilization or any utilization going beyond these ones is to
be considered as unintended use. The manufacturer/supplier shall
not be liable for damages resulting from unintended use; the user
shall bear the risk alone.
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