REMKO PWB 50 User manual

Edition GB – G10
REMKO PWB
Automatic hot water heaters
for mobile use
Operation · Technology

3
Contents
Safety notes 4
Unit description 4
Heating medium connection 5
Commissioning 5
Shutdown 5
Care and maintenance 6
Intended use 6
Customer service and guarantee 6
Environmental protection and recycling 6
Technical data 7
Output table 7
Optional water connection kit 7
Carefully read this operating manual prior to commissioning/using
the units!
This operating manual is a translation of the German original.
These instructions are an integral part of the unit and must always be
kept in the vicinity of the installation location or on the unit itself.
Subject to modifications; no liability accepted for errors or misprints!

4
HOT WATER HEATERS
Safety notes Unit description
NOTE
Fault-free function of the units
is only guaranteed if the inlet
temperature at the unit inlet
and the pump performance are
appropriate for the selected unit
classification.
The units were subjected to
extensive material, functional and
quality inspections prior to delivery.
Nonetheless, it is still possible for
dangers to emanate from the units
if they are used improperly or by
untrained personnel.
Always observe the following
safety instructions:
■The respective building code
regulations or other regulations
must be observed as a basic rule
■The operator is responsible for
the proper unit installation, the
correct electrical supply and the
safe operation of the units
■The units must be set up,
installed and operated in
such a way that no one is
endangered or stressed by
radiated heat
■Installation, connection of the
heating medium, connection
of the electrical system and
the maintenance may only be
carried out by trained, qualified
persons
■The units may not be installed
or operated in potentially
flammable or explosive
environments
■The units must be installed away
from traffic zones.
A safety zone with a clearance
of 1 m must be ensured
■The units may only be operated
in completely assembled
condition and when stable
■Safety components
(e.g. protection grids) must
not be removed or rendered
inoperative
■The units may only be used as
intended within the specified
output limits and with the
approved conveying media
Observe name plate!
■The protective grille of the
intake and the intake filter must
always be kept free of dirt and
loose objects
■The unit outlet and intake shall
not be closed
■Never insert foreign objects into
the unit
■The unit may not be exposed to
direct jets of water
■Never allow water to enter the
units
■All electrical cables for the
units must be protected against
damage (e.g. by animals etc.)
■The customer-provided hot
water hoses are to be protected
from damage
■The water-side unit connection
is to be carried out by the
customer, secured against
unauthorised loosening
The automatic mobile hot water
units are designed primarily for
heating construction sites, tents,
halls, etc.
The automatic mobile hot water
units are available at short notice
for heating halls, construction sites
and buildings where the room
heating system has not yet been
installed.
The units are mobile, indirectly
fuelled air heaters with Cu/Al
finned heat exchangers for
connection to a pumped hot water
network up to max. 110 °C.
The units are equipped as standard
with horizontal, individually
adjustable air discharge fins and
replaceable air intake filters.
An adjustable room thermostat
from 0 - 40 °C and 3 m connection
cable with Schuko plug are fitted
to the unit.
The units are equipped
with a noise-optimised and
aerodynamically designed
230V/50Hz high-performance
sickle-shaped axial fan.
The units conform to the
fundamental health and safety
requirements of the appropriate
EU stipulations and are simple to
operate.
Inlet
Return
flow
A water connection kit # 1687005 is
available as an option

5
Connection to the hot water
heating system provided by
the customer
Before connection to the on-site
heating system, it must be ensured
that the respective unit-specific
output requirements can always be
provided.
■ The water-side unit connection
is to be carried out by the
customer with suitable water
hoses and shut-off valves in the
supply and return flow
■ The finned heat exchangers
are to be carefully bled after
installation is complete
Air pockets in the heat
exchanger cause a reduction in
the heating capacity!
Drainage when at risk
of freezing
Complete static drainage of the
finned heat exchanger is not
possible.
Complete drainage of the finned
heat exchanger is only possible
with compressed air.
Important information for anti-
freeze protection!
With systems that are
decommissioned in rooms at risk of
freezing, the heat exchanger may
never contain water. The residual
water should be blasted out with
compressed air.
If this is not possible, the heating
medium (water) must be mixed
with suitable anti-freeze protection
agent.
Heating medium connection
Before the initial
commissioning
1. Check that the unit has been
installed/assembled correctly.
2. Check that the connection to
the customer's hot water system
has been implemented correctly.
3. Check whether all blower
outlets are open.
4. Establish the power supply to
the switchgear and switch on
the unit with the temperature
controller.
Electrical wiring
■ The units are operated with
230V/50 Hz alternating current
■ The electrical connection is
made using a built-in mains
cable with earthed safety plug
■ Connect the power plug
to a properly installed and
appropriately safeguarded
mains socket
■ All cable extensions must only
be used in fully unreeled or
reeled off condition
Commissioning
NOTE
The electrical connection for
the units must be made at
a separate feed point with
a residual current device in
accordance with VDE 0100,
Section 55.
■ If there is a danger of frost,
the complete system should
be emptied if the heating
medium (water) has not been
mixed with suitable anti-freeze
protection agent
Shutdown
Care and maintenance
In normal operation, the units
are almost maintenance-free.
However, in order to guarantee
continuous fault-free operation,
they should be checked at regular
intervals and cleaned when
necessary.
■ The units should be fully
disconnected (all poles) from
the electrical power supply
and secured to prevent
unauthorised reactivation
Cleaning the units
■ Clean or replace the intake filter
at regular intervals
■ Clean all intake openings and
discharge fins
■ To clean the fan blades, it is
necessary to remove the intake
filter and the protection grid
beforehand
■ Clean the heat exchanger fins
by blowing, with suction or
using a smooth brush
■ Clean severe soiling on the fan
and the aluminium fins with
soap solution
■ Clean the units dry or with
a moistened cloth and some
soap solution if necessary
■ High pressure cleaners or steam
cleaners shall not be used under
any circumstances
■ Never use abrasive or solvent-
based cleaners
Set the temperature control of the
thermostat to the “0” position.
With longer breaks in
operation:
■ Disconnect the unit from the
electrical power supply
■ Shut off or decouple the
heating medium connections
No guarantee claims can be
accepted for frost damage on
the finned heat exchangers!
CAUTION
!

6
HOT WATER HEATERS
The units are designed exclusively
for mobile heating purposes in
industrial or commercial use (not
for heating living spaces) on the
basis of their structural design and
equipment.
The design of the mobile units
allows rapid change in location
and may only be operated in the
design delivered from the factory.
Damage resulting from incorrect
operation or commissioning by
unauthorised persons, is excluded
from guarantee claims.
The units conform to the
fundamental health and safety
requirements of the applicable EU
provisions and have been checked
several times in the factory to
ensure their fault-free function.
The manufacturer shall not
be liable for damage resulting
from non-observance of the
manufacturer's specifications, the
respective local legal requirements
or from unauthorised alterations to
the units.
Customer service
and guarantee
As a prerequisite for any guarantee
claims to be considered, it is
essential that the ordering
party or their representative
complete and return the
“Certificate of guarantee” to
REMKO GmbH & Co. KG at the
time when the units are purchased
and commissioned.
The units were tested at the
factory several times to verify their
correct function.
However, if malfunctions should
arise that cannot be remedied by
the operator with the assistance of
the troubleshooting section, please
contact your specialist dealer or
contractual partner.
Intended use
Disposal of packaging
When disposing of packaging
material, please consider our
environment.
Our units are carefully packed
and delivered in stable transport
packaging and, if applicable,
on a wooden pallet.
The packaging materials are
environmentally-friendly and can
be recycled.
By recycling packaging materials,
you make a valuable contribution
to the reduction of waste and
conservation of raw materials.
Therefore, only dispose of
packaging material at appropriate
collection points.
Disposal of the old unit
The manufacturing process for
the units is subject to continuous
quality control.
Only high-grade materials are
processed, the majority of which
are recyclable.
You also contribute to
environmental protection by
ensuring that your old equipment
is only disposed of in an
environment friendly manner.
Therefore, only bring the old
unit to an authorised recycling
business or to an appropriate
collection point
.
NOTE
Operation other than the
types listed in this operating
manual is prohibited.
With non-observance, any
manufacturer liability or
guarantee claims are voided.
NOTE
Repair and maintenance
work may only be carried out
by authorised and qualified
technicians.
Environmental
protection and
recycling
Copyright
The redistribution, even
in part, or the use of this
documentation for purposes
other than intended is
prohibited without the written
authorisation of
REMKO GmbH & Co. KG .
CAUTION
!

7
Technical data
1) Measurement at a distance of 5 m, measured room volume 800 m3, average reverberation time 1.4 s
Series PWB 50
Heating capacity at 90/70 and 0 °C air entry
temperature tL1 kW 45 Air exit temp. tL2 39 °C
Heating capacity at 60/50 and 0 °C air entry
temperature tL1 kW 34.5 Air exit temp. tL2 30 °C
Electrical connection V 1~230
Frequency HZ 50
Power consumption kW 0.50
Rated current A 2.3
Electrical protection (provided by the customer) A 16
Speed rpm 1,380
Air volume m3/h 3,000
Sound pressure level 1) dB(A) 58
Heating medium connection Inches 2 x R1¼“
Heating medium Pumped warm water or pumped hot water up to 110 °C
Max. operating pressure bar 16
Heating medium flow rate m3/h 2.0 (0.56 l/s)
Heating medium resistance kPa 4.8
Enclosure class IP 54
Dimensions (LxBxH) mm 865 x 570 x 745
EDP: 1687000
Weight kg 57
PWW heating medium
tL1 °C
50/40 °C
- 15
- 10
- 5
0
+ 5
+ 10
+ 15
+ 20
60/50 °C
- 15
- 10
- 5
0
+ 5
+ 10
+ 15
+ 20
70/50 °C
- 15
- 10
- 5
0
+ 5
+ 10
+ 15
+ 20
kW tL2 °C
36.1 18
32.8 20
29.5 22
25.9 24
22.6 27
19.0 29
15.6 31
12.0 32
45.9 24
42.3 26
38.1 28
34.5 30
31.1 34
27.3 36
23.8 37
20.1 39
46.1 25
42.6 27
38.8 28
34.9 30
31.4 34
27.6 36
22.8 36
18.2 37
PWW heating medium
tL1 °C
80/60 °C
- 15
- 10
- 5
0
+ 5
+ 10
+ 15
+ 20
90/70 °C
- 15
- 10
- 5
0
+ 5
+ 10
+ 15
+ 20
kW tL2 °C
52.9 31
49.7 33
46.1 35
42.6 37
38.8 41
34.9 43
31.4 44
27.6 46
54.0 31
50.8 34
48.1 36
45.0 39
41.9 44
38.6 46
35.3 48
31.8 50
tL2 Air outlet temperature
tL1 Air inlet temperature
Output table Water connection kit
optional # 168705




Legend
1 = Bleed valve
2 = Shut-off valve (inlet)
3 = Quick coupling with safeguard
4 = Shut-off valve (return flow)
5 = Quick coupling with safeguard

Consulting
Thanks to intensive training,
our consultants are always
completely up-to-date when it
comes to technical expertise.
This has given us the reputation
of being more than just an
excellent, reliable supplier:
REMKO, a partner who helps to
solve problems.
Sales
REMKO offers not just a well
established sales network both
nationally and internationally, but
also has exceptionally highly-
qualified sales specialists.
REMKO employees in the
field are more than just sales
people: above all, they must
be advisers to our customers
in air conditioning and heating
technology.
Customer service
Our units operate precisely
and reliably. However, in the
event of a malfunction REMKO
customer service is quickly on the
scene. Our extensive network of
experienced dealers guarantees
quick and reliable service.
REMKO INTERNATIONAL
... and also right in your neighbourhood!
Take advantage of our experience and advice
REMKO GmbH & Co. KG
Air conditioning and heating technology
Im Seelenkamp 12 D-32791 Lage
Postfach 1827 D-32777 Lage
Telephone [phone]
Fax [phone]
E-mail [email protected]
Internet www.remko.de
We reserve the right to make technical changes and provide no warranty as to the accuracy of this data!