BWT WRAS Powermag User manual

Powermag RR

Powermag needs to be installed by a
professional installer. If you require installation
please call our sales office on 01494 838107

Contents
General Notes 1
Installation 2,3
Electrical notes 4
Troubleshooting guide 5
Specifications 6
Spare parts 7
Powermag warranty 8
1
General Notes
Powermag is a WRAS approved electromagnetic physical water conditioner that
uses the principles of magnetism to remove hard crystalline scale within hot and
cold water services. The Powermag sets up a specific magnetic field which has an
effect on the hardness salts within the water. This helps to inhibit and remove
existing formations of scale, providing an environmentally friendly method of scale
treatment without the use of chemicals. (WRAS approval number 0803083).
The Powermag p alters the molecular structure of scale
forming particles allowing them to pass through the pipe system without leaving
deposits of scale within the system. The Powermag physical water conditioner
doesn't introduce sodium into the water, therefore the water remains potable.
The Powermag does not require a separate drain. It can be installed direct in-line
without the aid of a bypass. There are no moving parts which means the unit can
operate with a limited amount of servicing.
hysical water conditioner
Physically conditioned water will tend to revert back to its untreated state over time;
we recommend the sooner the water is used after treatment, the more effective the
physical water conditioner will be. In addition consideration should be given where
water turbulence may be induced in the water flow as this may also reduce the
effectiveness of the physical water conditioner. Please refer to the installation
section of this manual in order to site the unit in an optimum position and ensure
effective treatment of incoming water.

2
Installation
The unit should be installed directly in-line on any of the following materials;
copper, PVC, or galvanized pipework.
To ensure that the unit is adequately supported and does not place excessive strain
on the existing pipework, we recommend using additional support brackets (not
supplied) on the inlet and outlet pipework. We recommend that in order to avoid
damage to the magnetic coil it is installed in a horizontal orientation wherever
possible. It may also be necessary to install elbows and additional pipework,
however we recommend keeping this to a minimum.
The unit is manufactured from low carbon steel tubing and is protected from
corrosion by a WRAS approved surface coating.
We also recommend the use of isolating valves before and after the unit. This will
facilitate any service or maintenance work that may be required.
Recommended Installations
Powermag units are best installed in one of the following positions:
!Gravity downfeed from a central water tank *
!After a booster pump
!Directly on the cold mains supply, where all outlets are mains fed
*NB: Great care must be taken when installing the Powermag vertically as this may
result in damage to the magnetic coil.
The Powermag control box should be connected to a suitable fused switched spur.
Please refer to the product specification data to ensure you have a suitable spur
available.
The spur must incorporate an isolation switch to enable maintenance or repair of
the system. The isolation switch must be easily accessible to the user.
In no circumstance will you be required to connect the body of the unit (coil)
to the mains power supply. Always connect the main body (coil) to the
control panel.
Isolating
Valve
Isolating
Valve
IN
OUT
IN
OUT
Isolating
Valve
Isolating
Valve
Isolating
Valve
Isolating
Valve
Isolating
Valve
Pump
Powermag Powermag
Water tank Water tank

Installation cont.
WARNING
Disconnect the mains
supply before opening this
cover
MADE IN BRITAIN
BWT UK Ltd
Running
Temperature
Coil
Current
Hours
Run
Set
Temperature Coil Status
Powermag
Tmp19 Amp12 H00016
StTp28 Coil Active
Temperature
Thermistor Isolating
Valve
Isolating
Valve
230V 50Hz Supply
Key to LCD display
Isolation
switch
3
IN
OUT
Running Temperature: Temperature reading 
from thermistor on the outlet pipework 
Coil Current: Operating current of magnetic 
coil (in amps) 

Hours Run: Total hours of coil operation since 
installation (NOTE: Service Warning Lamp will 
illuminate when service interval has been 
reached - please contact BWT Service when 
this occurs) 

Activity LED Display: Visual display of coil 
operation. LED will run left to right when active 
and halt when inactive. If fault status is initiated 
alternating LEDs in the strip will illuminate 
continuously 

Set Temperature: Maximum temperature 
setting for thermistor circuit 

Coil Status: Current status of coil (Coil Active 
when operational, Coil Inactive when 
thermistor Set Temperature achieved) 
Service 
Warning 
Lamp 

Activity 
LED 
Display 


Electrical Notes
Identifying the main components
Transformer
MCB AC
supply
MCB DC
supply
MCB Mains
protection
Fault
relay
Smoothing
capacitor
EMF
diode
Bridge rectifier
assembly
Cooling
fan
Exhaust
filter
Fan inlet
(must be
kept clean)
Fan exhaust filter
(must be kept clean)
Isolation
switch
PCB electronic
control
7 8 9
Thermistor
+ -
Coil
LNE
Power
in connection
For interface to BMS
and fault monitoring
systems
*Shown in the power
OFF state
* When the power is
applied to the control
panel the relay will
change state, i.e.
Terminals 7,8 will be
CLOSED
Terminals 8,9 will be
OPEN
Display brightness
control
Inlet water temperature
coil cut out adjustment
(factory set at 28DegC)
4
WARNING
High
current

Troubleshooting Guide
Problem Probable cause Recommended
solution
Coil remains inactive Inlet water temperature
is above the set point
of the thermistor
Re-set the thermistor
control to suit the
application
Mains MCB repeatedly
trips out
Fault on the
transformer
Test and replace the
transformer
Secondary AC supply
MCB repeatedly trips
out
Fault on the bridge
rectifier assembly
Test and replace the
bridge rectifier
assembly
Secondary DC supply
MCB repeatedly trips
out
Fault on the magnetic
coil
Test and replace the
magnetic coil
Panel overheats Poor circulation in the
panel
Loose connections on
high power lines
Check, clean, replace
the cooling fan and
outlet filter
Secure all loose
connections and
replace wiring where
necessary
Fault contacts remain
closed
No power to panel Check mains inlet
voltage
Check status of MCB's
The following fault table is provided as a guide to resolving
operational issues with the Powermag system. Any fault
diagnosis must be conducted by a suitably qualified electrical
engineer.
5

6
Description Part Number
Transformer 13.5V PMT13.5
Transformer 16V PM16
Isolation switch PMMI30
20AMCB PMCB20
6A MCB PMCB6
Bridge rectifier assembly PMBHA
Fan kit PMFAN3
Fan Filter Pack (5 Filters) PMFILPK
Fault relay PMREL1
Electronic display PMDB1
Smoothing capacitor PMCAP
Thermistor with lead PMTHL
EMF diode PMEMF
10A MCB PMCB10
16A MCB PMCB16
Spare parts list
Notes
For spares orders please contact BWT on:
Tel: [phone] Fax: [phone]
Email: [e-mail]

7
Specifications
P100
1½"
P200 P250 P300 P400P150
Pipe size BSP
(male)
Coil diameter
(mm)
Coil width
(mm)
Overall
length (mm)
Coil weight
(kg)
1" 2" 2½" 3" 4"
190 360 415 415 415 415
110 145 195 195 195 195
180 240 330 330 330 330
5 8 19 22 24 28
Max flow
rate (l/sec)
Frictional
loss (bar)
Power
Supply
Max water
temperature
(°C)
Power
consumption
(kW)
Max
pressure (bar)
1.5 3.0 6.0 8.0 12.0 30
<0.2 <0.2 <0.2 <0.2 <0.2 <0.2
230V/50Hz 230V/50Hz 230V/50Hz 230V/50Hz 230V/50Hz 230V/50Hz
25 25 25 25 25 25
0.3 0.3 0.3 0.3 0.3 0.3
16 16 16 16 16 16
Mechanical specification
P100
Transformer
voltage
Mains MCB
AC supply
MCB
DC supply
MCB
13.5V
2A
10A
10A
16V
P200P150
16V
6A 6A
20A20A
16A 16A
P250 P300 P400
16V 16V 16V
6A 6A 6A
20A20A20A
16A 16A 16A
Electrical specification

Powermag Warranty
8
The Powermag has been designed to give many years of satisfactory service
and is guaranteed against faulty materials and workmanship for a period of
12 months from the date of purchase. Under the provision of this the warranty
agreement the warranty liability is limited to the repair or replacement cost of the unit
only and is subject to the terms shown below.
Conditions and Terms of the Warranty:
This warranty provides benefits, which are additional to, and do not affect,
your legal rights. BWT UK willreplace or exchange any necessaryparts to
repair free ofcharge any Powermag supplied by BWT UK or it’s agents,
located within the United Kingdom,* which is shown to the satisfaction of
BWT UK to be defective due to faulty workmanship or materials within 12
months from the date of Installation.
What services and associated costs are not included?
Repairs due to breakdown caused by but not limited to:
·Use of the unit for purposes for which it was not designed or intended.
·Incorrect installation e.g. the failure to follow instructions or advice given by Culligan
or it representatives.
·Any defect caused by malicious or wilful action, negligence, misuse or third part
interference.
·Any defect or damage occasioned by fire, lightening, explosion, flood, storm, frost
impact or other extraneous cause.
·Consequential loss arising as a result of a defect occurring in the Powermag or
installation.
·Any defect or damage arising as a result of failure in the public electricity supply.
Repair cost for: -
·Consumer replaceable items including but not limited to filter.
·Associate items but not part of the unit, including but not limited to, pipe work and
electrical connections.
·The expense of a service call when the service engineer finds no fault.
* UK Mainland Only ** Subject to Location