Mobil in Time EH 9 User manual

Manual
for the operator
Version 2.0 / 08.2014 / GB
Read the manual before commencing any work!
Mobile electric heating
9 - 15 - 22 - 36 kW

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Version 2.0 / 08.2014 / GB Manual
Mobile electric heating
Contents
1 Important information 5
1.1 Notes on the manual 5
1.2 Spare parts 6
1.3 Warranty 7
2 Safety instructions and regulations 8
2.1 Follow the safety instructions 8
2.2 Labeling and meaning of warnings 8
2.3 Special hazards 9
3 Device description 10
3.1 System description 10
3.2 Models 10
3.3 Design of the mobile electric heating 11
3.3.1 Total device 11
3.3.2 Panel 13
4 Transport and storage 14
4.1 How to transport the mobile electric heating 14
4.2 Storage conditions 14
4.3 Disposal and packaging 14
5 Installation and commissioning 15
5.1 Location requirements 15
5.2 How to set up and connect the mobile electric heating 16
5.3 Hydraulics installation 17
5.3.1 Pipe connections of the mobile electric heating 17
5.3.2 Conventional hydraulic installation of the mobile
electric heating in the heating system 18
5.3.3 Optional extensions for the hydraulic integration
of the mobile electric heating into the heating system 19
5.4 Electric connection 23
5.5 How to commission the heating system 23
5.5.1 How to fill or vent the heating system 23
5.5.2 How to check the functions 24
6 Operation 26
6.1 How to switch the mobile electric heating on 26
6.2 How to switch the mobile electric heating off 26

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6.3 How to recommission the mobile electric heating after shutdown 27
6.4 How to lower the temperature 27
6.5 Optional: Thermal disinfection 27
7 Decommissioning 28
7.1 How to take the mobile electric heating out of service 28
8 Servicing 29
8.1 Servicing schedule 29
8.2 Servicing operations 29
8.2.1 Clean the cases 29
8.2.2 Check the heating system pressure 30
8.2.3 Decalcify the heat source 30
8.2.4 Refill the heating system 30
8.2.5 Inspect the mobile electric heating 30
8.2.6 Safety devices of the mobile electric heating 31
8.2.7 Check the tyre pressure of the hand cart 31
9 Faults and troubleshooting 32
9.1 Fault - cause - remedy 32
9.2 Exchange the heating element 33
9.3 Reset the high limit safety (HLS) 33
9.4 Exchange the circulating pump 33
9.5 Exchange the control thermostat 33
10 Dismantling and disposal 35
10.1 Dismantle the mobile electric heating 35
10.2 Dispose of the mobile electric heating 35
11 Technical data 36
11.1 Dimensions 36
11.2 Model specifications 38
12 Declaration of conformity 39
13 Checklist 40

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Version 2.0 / 08.2014 / GB Manual
Mobile electric heating
Note!
This printed document is a part of the documentation for the mobile electric heating.
Copyright
Mobil in Time GmbH
All rights reserved. Full or partial reproduction or copying of this manual is not permitted without
previous written approval by Mobil in Time GmbH.
Imprint
Mobil in Time GmbH
Im Aachtal 1A
D-78267 Aach
Phone [phone]
Fax [phone]
www.mobilintime.de
[email protected]
© 2014 Mobil in Time GmbH
All rights reserved

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Version 2.0 / 08.2014 / GBManual
Mobile electric heating
Read this manual carefully before you start running the mobile electric heating. Follow all
the following safety instructions. Keep this manual handy for future reference.
1. Read this manual.
2. Keep this manual.
3. Observe all warning instructions.
4. Follow all instructions.
5. Never try to modify the device.
6. Always leave repair work to specialist staff.
Target group
This manual aims at buyers, tenants and operators of the mobile electric heating.
Applicable documents
• EC Declaration of Conformity
Terms explained
Mobile electric heating
The mobile electric heating comprises the hand cart with the hot-water generator moun-
ted on top, its armatures and the power cable.
Heating system
The heating system comprises all parts of the heating. These are, for example, the mobile
electric heating, piping, radiators, hot-water tank, circulating pumps, valves etc.
Hot-water generator
The hot-water generator is the actual heat source.
1.1 Notes on the manual
1 Important information

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Mobile electric heating
Original spare parts can be purchased directly from Mobil in Time. Please, find the address
of Mobil in Time on the back of the manual.
WARNING!
Risk of injury from wrong spare parts!
Wrong or faulty spare parts can cause damage, malfunction or complete failure of the
mobile electric heating and affect safety strongly.
» Use original spare parts only!
Inadmissible accessories and spare parts
Third-party components may be unable to resist thermal or mechanical stress. Therefore,
Mobil in Time does not assume any liability for damage resulting from the use of devices,
accessories or spare parts not approved by the manufacturer.
1.2 Spare parts

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Mobile electric heating
The manufacturer grants a 24-month warranty against material or processing faults for
this product. The warranty begins with the purchase of the device from a specialist sup-
plier. If any warranty claims should be due, please, turn to the specialist supplier from
whom you have acquired the device. Warranty claims may also be submitted directly to
Mobil in Time. The following warranty terms apply.
Warranty terms
1. When submitting warranty claims, the customer shall present the original invoice. The
serial number at the device must be legible.
2. Mobil in Time may decide at own discretion whether the warranty claim will be met by
repairing or by replacing the device or the faulty part. Any further claims are excluded.
3. Warranty repairs shall be executed by Mobil in Time. There is no claim to cost al-
lowance for repair carried out by other traders because no such repair or damage
originating to the device from such repair is covered by this warranty.
4. No warranty shall be granted for the following:
• Regular inspections, servicing and repair or replacing parts on account of normal
wear (heating elements, pump).
• Carriage and travel expenses or costs for assembling or dismantling the device.
• Abuse or misappropriated use of the device or wrong installation.
• Damage caused by lightning, water, fire, force majeure, war, wrong mains voltage,
insufficient ventilation or other reasons for which Mobil in Time is not responsible.
5. This warranty is related to the product and can be claimed within the warranty period
by any person who has legally acquired the device.
1.3 Warranty

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Mobile electric heating
The prerequisite for safe handling and trouble-free operation of the mobile electric heating
is familiarity with the basic safety instructions and regulations. In addition, observe any
applicable local rules and regulations on the prevention of accidents.
This manual contains important notes on how to safely operate the mobile electric heating
and, hence, has to be considered by all staff.
Warnings are initiated in this manual by signal words representing the magnitude of the
danger.
1. Warnings must be followed!
2. Act prudently to avoid injury, damage or accidents.
DANGER!
Indicates an imminently dangerous situation that, if not avoided, will result in death or
severe injury.
WARNING!
Indicates a potentially dangerous situation that, if not avoided, may result in death or se-
vere injury.
CAUTION!
Indicates a possibly dangerous situation that, if not avoided, may result in minor injury.
CAUTION!
Indicates a possibly dangerous situation that, if not avoided, may result in damage.
Notes and recommendations
NOTE!
Emphasises useful notes and recommendations or information on efficient and trouble-
free operation.
2.1 Follow the safety instructions
2.2 Labeling and meaning of warnings
2 Safety instructions and regulations

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Mobile electric heating
Hazard by electric power
Fatal injury may be caused by electric power but avoided by the following measures:
• Only qualified electricians or other suitably qualified staff may work on the power sup-
ply.
• The power equipment of the mobile electric heating must be checked regularly. Any
loose connections or damaged cables and wires shall be removed immediately.
• Pull the mains plug before working on the power equipment of the mobile electric
heating.
Danger by burns and scalds
Burns and scalds are very painful but can be prevented by the following measures:
• Only professional staff with special knowledge and experience in heating engineering
may work on heating facilities.
• Before commencing work, make sure with a temperature gauge that the temperature
in conduits outside of the device, in hose couplings and the automatic vent is less than
60 °C. If the temperature cannot be lowered, cover relevant parts with heat-resistant
cloth.
Danger of tripping or falling
Hoses, conduits and cables connected to the mobile electric heating may cause tripping
or falling. This can be prevented by the following measures:
• Apply any hoses, conduits and cables in such a way that they do not pose a risk. If this
is not possible, attach marks on the floor.
Dirt, leaked water or scattered objects may also cause slipping, tripping or falling. This
can be prevented by the following measures:
• Remove any dirt or leaked water after working on the mobile electric heating.
• Return scattered objects to their proper place or put them aside.
If the mobile electric heating is supposed to be brought into elevated or lower areas, the
hand cart may be obstructed by objects located in the way and tilt over. Prevent acci-
dents by providing for free access for the hand cart.
2.3 Special hazards

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Mobile electric heating
The mobile electric heating heats water up to 90 °C and circulates it.
Modes of operation
The mobile electric heating can be operated in the Circulating or the Circulating and Heat-
ing mode.
In the Circulating mode only the pump is switched on. The heating stages 1 and 2 are
switched off.
In the Circulating and Heating mode the pump and heating stage 1 and, perhaps, heating
stage 2 are switched on.
The mobile electric heating is available in five different models.
• Model 9: 8.4 kW
• Model 15: 14.4 kW
• Model 22: 21.6 kW
• Model 36: 36 kW
All models are powered by 400 V three-phase + neutral.
Mobil in Time reserves the right to change the technical data and features of its models
without previous announcement.
3.1 System description
3.2 Models
3 Device description

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Mobile electric heating
Automatic
ventilation
Panel
Runback temperature
indicator
Lead temperature
indicator
RunbackLead
Runback valve
open/close
Lead valve
open/close
Fig. 1: Face of the mobile electric heating
3.3.1 Total device
3.3 Design of the mobile electric heating

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Mobile electric heating
Connection
expansion
vessel
Valve
expansion
vessel
Manually resetable
high limit safety
Outlet of the
safety valve
Connection for direct
process water
preparation (accessories)
Heating lead
Water shortage
fuse
Safety valve
Heating runback
Pump
Fig. 2: Lower back of the mobile electric heating

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Mobile electric heating
- Störung STB 103°C
- Min. Druck 0,3 bar
Main switch Thermal manometer
Failure light
Power selector with
indicator light Manually resetable high limit
safety at the bottom
Control thermostat,
infinitely variable
Control thermostat
The control thermostat helps define the setpoint temperature of the hot-water generator.
If both power selectors are switched on, the displayed stages correspond to the following
temperatures:
1 = approx. 20 ° C
2 = approx. 40 ° C
3 = approx. 60 ° C
4 = approx. 70 ° C
5 = approx. 80 ° C
Fig. 3: Panel
3.3.2 Panel

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Mobile electric heating
Make sure before transporting the mobile electric heating that the tyres of the hand cart
are filled with sufficient pressure.
Store the mobile electric heating in a weather-protected, frost-free room.
• Air temperature of +5 ° to +45 ° C
• Relative humidity of 20 to 70%
• No condensation
Send any packaging materials to recycling.
4.1 How to transport the mobile electric heating
4.2 Storage conditions
4.3 Disposal and packaging
4 Transport and storage

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Mobile electric heating
Make sure before installing that the expansion vessel of the mobile electric heating has
sufficient volume to be connected to the existing heating system. Install an additional
expansion vessel, if required.
The mobile electric heating may only be installed in a room which is suitable and non-
hazardous according to location, size, structure and kind of use. It must be sized in such
a way that the device can be properly installed, operated and maintained.
Environmental conditions
Insufficient environmental conditions can cause damage to the mobile electric heating
and jeopardise safe operation.
• Ambient temperature of +5 ° to +45 ° C
• Relative humidity of 20 to 70%
Avoid:
• Air contamination by halogen hydrocarbons, contained, e.g., in solvents or cleaning
agents
• Strong dust, e.g., by grinding
• Permanently high humidity, e.g., by permanent laundry drying.
The mobile electric heating is conceived for being used in shells but not outdoors!
CAUTION!
Damage of the mobile electric heating by unsuitable environmental conditions
Too low temperatures may cause hoses, pipes or couplings to burst, causing leakage.
Too high temperatures can damage the mobile electric heating.
» Operate the mobile electric heating only under the environmental conditions given
above!
5.1 Location requirements
5 Installation and commissioning

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Mobile electric heating
Connecting hose,
connected to
the lead
Connecting hose,
connected to
the runback
Lead hydraulic
connection
Runback hydraulic
connection
The mobile electric heating is delivered ready for connection, to be installed in a central
heating circuit.
1. Set up the hand cart with the mounted mobile electric heating on a level place. Make
sure that the position is safe!
2. Check the mobile electric heating and cable for damages.
3. Connect hoses at the lead and runback connection of the mobile electric heating as
shown in fig. 4. Guide them in such a way that they do not cause any danger.
4. Connect the cable. Guide it in such a way that it does not pose any risk.
CAUTION!
Damage of the mobile electric heating!
Objects placed on the mobile electric heating may cause a heat build-up in the mobile
electric heating. In addition, the function of the vent is impaired.
» Do not place or store any objects on the mobile electric heating!
Fig. 4: Hydraulic connections at the mobile electric heating
5.2 How to set up and connect the mobile electric heating

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Mobile electric heating
Filling or drain valve,
closed
Filling or drain valve,
open
Connection for filling
or drain hose
Filling hose, connected
1. Connect lead and runback with the hydraulic installation as described in chapter 5.2,
„How to set up and connect the mobile electric heating“.
2. Connect the filling hose to the fitting of a drain valve.
Fig. 5: Connected filling hose
5.3.1 Pipe connections of the mobile electric heating
5.3 Hydraulics installation

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Version 2.0 / 08.2014 / GB Manual
Mobile electric heating
- Störung STB 103°C
- Min. Druck 0,3 bar
Scope of supply
Mobile electric heating
Pipe installationHeating circuit pump
Heating circuit
In the following diagrammes, the grey parts of the system belong to the standard scope
of supply. All other parts are present on site.
The following diagramme shows the conventional heating connection:
Fig. 6: Hydraulic connection for a heating circuit
5.3.2 Conventional hydraulic installation of the mobile electric heating in the heating
system

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Version 2.0 / 08.2014 / GBManual
Mobile electric heating
M
- Störung STB 103°C
- Min. Druck 0,3 bar
Scope of supply
optional
Mobile electric heating
Heating circuit
Pipe installation
3-port directional
control valve
Heating circuit pumpProcess water circuit
with hot-water tank
In the following diagrammes, the grey parts of the system belong to the standard scope
of supply. The parts labelled „optional“ are additionally available. All other parts are pres-
ent on site.
Both the following diagrammes show the hydraulic connection for two heating circuits
with a 3-port directional control valve:
Fig. 7: Hydraulic connection with a pump, a 3-port directional control valve and a
hot-water tank
5.3.3 Optional extensions for the hydraulic integration of the mobile electric heating into
the heating system

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Mobile electric heating
M
- Störung STB 103°C
- Min. Druck 0,3 bar
Scope of supply
optional
Plate heat exchanger
Install the 3-port directional control valve in such a way that it is by default open towards
the process water circuit.
Fig. 8: Hydraulic connection with a pump, a 3-port directional control valve and a plate
heat exchanger