Atlantic Boilers MULTI-ELEC STANDARD 210, MULTI-ELEC STANDARD 90, MULTI-ELEC STANDARD, MULTI-ELEC STANDARD 245, MULTI-ELEC STANDARD 350 Technical Manual
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TECHNICAL MANUAL
MULTI-ELEC STANDARD BOILER
09/2011 CODE: 560955
CE Directive 2006/95/CEE
British Standard EN 60335-1 (C 73800)
1
CONTENTS Page
1) INTRODUCTION
1.1) Description 3
1.2) Dimensions & connections 4
1.3) Electrical power requirements 4
1.4) Dimensions 5
2) INSTALLATION
2.1) Procedure 6
2.2) Arrangement 6
2.3) Essential accessories 7
2.4) Precautions 7
2.5) Boiler room arrangements 7
2.6) Commissioning 7
3) ELECTRICAL ARRANGEMENTS
3.1) Control panel arrangement 8
3.2) Control circuitry 9
3.3) Electrical power circuitry 10
3.4) Fuse and overload protection 11-12
3.5) Operation of the digital controller 13
3.6) Alarm arrangements 13
4) DELIVERY and OFF-LOADING 14
5) MAINTENANCE 15
6) GUARANTEE 16
7) IDENTIFICATION OF SPARE PARTS 17
8) FAULT DETECTION 17
2
1) INTRODUCTION
1.1) Description
The STANDARD electric boiler is suitable for a variety of types of space heating and indirect
domestic hot water – covering sealed circuits from 0.5BARS to 7.0BARS working pressure.
The STANDARD electric boiler always requires earthing, under protection index IP21/1K 08.
The STANDARD electric boiler is designed and manufactured according to the following :-
EN Decree 95-1081 – control of boiler materials and electrical supply voltage used in
order to conserve the safety of persons and animals which might be in the vicinity
European Directive 2006/95/CEE covering low voltage system application
BS EN 60335-1 class C73800, part 1, general rules
THE STANDARD ELECTRIC BOILER
Outputs from 90kW to 630kW
Outputs above 630kW to 980kW by special order
Maximum working pressure 4BARS, test pressure 6BARS
Maximum working temperature 100degC, limit 110degC
50mm thick glass silk insulation with MO fire classification cladding
Hand reset limit thermostat at 110degC
Resistance to earthing shock not less than 1 megohm
INCOLLOY IMMERSION HEATERS – 90kW to 180kW boilers
Individual heater elements 80-200mm diameter
Individual elements – 30kW, 415V, 3phase & earth
Vertical access requirement – 2010mm
INCOLLOY IMMERSION HEATERS – 210kW to 630kW
Individual heater elements 80-200mm diameter
Individual elements – 35kW, 415V, 3phase & earth
Vertical access requirement – 2050mm
CONTROL PANEL
Control cabinet fixed to the boiler
Enabling from remote electronic or hand operation
Three cartridge fuses per each step control
Three contactors, one per step
One transformer for the control circuit
One main isolator with manual lock
One ‘alive’ lamp indicating power on
One ‘lock-out’ lamp indicating boiler stopped
One digital controller
One set of terminal connections
The control panel can
(i) be located in any of three positions on the boiler
(ii) have the panel door in either of two hinge positions
(iii) be provided with variable control & output
3
M
ODEL
210 245 280 315 350 385 420
Output kW
210 245 280 315 350 385 420
No of Immersion heaters
6 7 8 9 10 11 12
Minimum flow rate l/sec
1.7 1.7 1.7 1.7 2.2 2.2 2.2
Maximum flow rate l/sec
11.7
11.7
11.7
11.7
11.7
11.7
11.7
Maximum pressure d
rop kPA
16 16 16 16 16 16 16
Flow/return connections
100 100 100 100 100 100 100
Dry weight kgs
233 238 243 248 253 258 263
Water content
283 283 283 283 283 283 283
M
ODEL
455 490 525 560 595 630
Output kW
455 490 525 560 595 630
No of Immersion he
aters
13 14 15 16 17 18
Minimum flow rate l/sec
2.8 2.8 2.8 2.8 3.6 3.6
Maximum flow rate l/sec
26.0
26.0
26.0
26.0
26.0
26.0
Maximum pressure drop kPA
16 16 16 16 16 16
Flow/return connections
150 150 150 150 150 150
Dry weight kgs
367 372 377 382 38
7 392
Water content
395 395 395 395 395 395
MODEL
90
120 150 180
Output kW
90
120 150 180
No of Immersion heaters
3 4 5 6
Minimum flow rate l/sec
0.6 0.8 0.8 1.1
Maximum flow rate l/sec
5.0 5.0 10.0
10.0
Maximum pressure drop kPA
8 8 28 28
Flow/return connections
80 80 80 80
Dry weight kgs
117 121 125 129
Water content
128 128 128 1
28
OUTPUT
STEP ONE
STEP TWO
STEP THREE
Power
fuse
Power
fuse
Power
fuse
90kW
30 63 30 63 30 63
120 60 125 30 63 30 63 150 60 125 60 125 30 63 180 60 12
5 60 125 60 125 210 70 125 70 125 70 125 245 105 160 70 125 70 125 280 105 160 105 160 70 125 315 105 160 105 160 105 160 350 140 250 105 160 105 160 385 140 250 140 250 105 160 420 140 250 140 250 140 250 455 175 315 175 315 140 250 490 175 315 1
75 315 140 250 525 175 315 175 315 175 315
560 210 400 175 315 175 315
630 210 400 210 400 210 400
1.3 Electrical power required
1.2) Performance
kW
A
kW
A
kW
A
4
Model
Depth
Width
Height
Access Front
Access Rear
Access Side
Access Other
90 820 520 1380
1000
750 500 100 120 820 520 1380
1000
750 500 100 15
0 820 520 1380
1000
750 500 100 180 820 520 1380
1000
750 500 100 210 970 670 1570
1000
750 500 100 245 970 670 1570
1000
750 500 100 280 970 670 1570
1000
750 500 100 315 970 670 1570
1000
750 500 100 350 1070
670 1600
1000
750 500 100 385 1070
670 1600
1000
750 500 100 420 1070
670 1600
1000
750 500 100 455 1170
770 1800
1000
750 500 100 490 1170
770 1800
1000
750 500 100 525 1170
770 1800
1000
750 500 100 560 1170
770 1800
1000
750 500 100 595 1170
770 1800
1000
750 500 100 630 1170
770 180
0 1000
750 500 100
1.4 Dimensions
mm
mm
mm
mm
mm
mm
Side
5
Expansion
Pressure &
relief valve
Auto air
Pump
Non return
Pressure relief
Isolating ball
2) INSTALLATION
2.1) Procedure
* Position the boiler squarely on the prepared base
* Fit the correct accessories to the boiler connections
* Connect the boiler to the pipework system
* Connect the boiler to the isolated electrical supply
* Fill the boiler with fresh, clean water
* Check that the immersion heaters are electrically isolated from the
boiler. If the isolation is less than 2mega-ohms, the bridge must be
found and rectified.
* Check the operation of the main control panel isolator, and of the
overloads serving the immersion heaters
* Check the operation and the correct direction of rotation of the
circulating pump
* Check, with the circulation pump stopped, that the water flow switch
over-rides the immersion heaters through their relays and also brings
on the relevant alarm light
* Check the setting and operation of the immersion heater step controls
* Switch off the immersion heaters using the main control panel isolator
* Check that all the cartridge fuses are sound
* Double check that all the immersion heaters receive the common
voltage. Repeat the check after several hours run. Any defect in
voltage can destroy the heaters and invalidate the guarantee.
2.2) Typical heating arrangement
DHW
Xpresso
Balancing Vessel
Radiators
vessel
vent
valve
valve
temperature
3 Port valve
valve
6
Fill Loop
2.3) Essential accessories
The following items are required :A. One 4-bar safety valve and one 7-bar temperature and pressure relief valve
B. One shunt pump – protected by overloads (1A to 1.6A adjustable) and run/fault lamps
C. One water flow switch
- Recommended water flow settings in litres per second
Pipeline sizes 32mm 40mm 50mm 65mm
Minimum range 0.35-0.47 0.53-0.72 0.61-0.83 1.0-1.4
Maximum setting 1.0 1.6 1.9 3.2
D. One automatic air vent with isolating valve
E. One drain ball valve
2.4) Precautions
The Multi-elec Standard requires an installation conforming to
89.336/EEC Directive (electromagnetic compatibility)
73/23/EEC Directive (low voltage)
92/42/EEC Directive (performance)
The ATLANTIC Guarantee conditions
2.5) Boiler room arrangements
The Multi-elec Standard must be installed
In an adequately-ventilated boiler room with ambient temperature below 30degC
And relative humidity maintained between 30% and 80% and where condensation
does not occur
In a non-corrosive atmosphere
In a non-explosive atmosphere
Where there is good access to the boiler position for installation and maintenance
Where there is good access for delivery, off-loading and positioning
Using similar materials in the pipework, and avoiding materials leading to electrolytic
action and system deterioration
The Multi-elec Standard is not suitable for external installation
2.6) Commissioning
The boiler must be completely full of water before the heating elements are switched
on. To ensure 100% filling, manual and automatic vents must be in effective positions
where complete air clearance can be guaranteed.
The boiler can be filled with water by connecting a fill hose to the boiler drain valve
and partly opening the valve.
The boiler safety valve can also be used firstly to vent the boiler at filling and,
secondly, ensuring the blow-down facility of the valve is clear in case of emergency.
For full guarantee, the boiler should be commissioning by Atlantic 2000 or an
authorised engineer
7
3) ELECTRICAL ARRANGEMENTS
3.1) Control panel arrangement
Photograph of control panel with identification of components
8
3.2) Control circuitry
EXTERNAL CONTROLS
9
3.3) Electrical power circuitry
10
3.4) Fuse and overload protection
Fuse ratings and type – industrial cylindrical cartridge
90 to 280kW
F1 – 1A type aM, F2 – 1A type gG, F3 – 0.5A type gG
315 to 630kW
F1 – 1A type aM, F2 – 1A type gG, F3 – 0.5A type gG
F4 – F6 type 22 x 58 : 63A type gG
Type 0 : 125A type gG
Type 1 : 160A type gG
Type 2 : 250, 315 & 400A type gG
Amperage requirement – insert table from earlier
ELECTRICAL CIRCUIT
The Standard electric boiler must be provided with 415volts and
without neutral wiring
The electrical wiring cables must be sized by a qualified electrician in
order to conform
to BS C 15100 and satisfying load, length of run and prevention of short
circuit.
The installation must be tested for automatic power failure in the
event of emergency
power cut, heater lock-out or error in the neutral layout.
All electrical equipment shall satisfy IP21/IK08 Class 1
The immersion heaters shall only receive electrical power if they are
fully immersed in water; otherwise the guarantee on the heaters will
not apply
ALL ELECTRICAL WIRING MUST BE CORRECTLY EARTHED
11
12
3.5) Operation of the digital controller
Factory settings (primary heating circuit)
Flow temperature – 80degC
Maximum flow temperature setting – 95degC
Minimum flow temperature setting - 20degC
Time delay T1 – 30 seconds
Time delay T2 - 1 minute
Time delay T3 - 2 minutes
digital controller has numbers or message, touch settings
+ – touch raise settings, – touch lower settings
3.6) ALARM SIGNAL
On Alarm, light (7) shows and the following messages appear on (1)
< PFO > Lock-out or power cut
< HA > High temperature lock-out
< LA > Low temperature alarm
3.6 Information on the Control Panel
1. The Panel has a registration label
2. The wiring is capable of a maximum current of 23kA
3. Neutral panel wiring is not required
4. The Panel is protected by isolators, circuit breakers and fuses.
5. Earth wiring is essential
6. One week after commissioning, all connectors – on immersion
heaters and incoming electrical supplies – need to be checked.
This should be repeated annually.
7. Manufacturing tests include heat output and control circuitry
8. The boilers should not be installed or operated in corrosive,
explosive or humid atmosphere
9. Adequate natural ventilation is required. 550mm2 x kW free
area at high and low level is recommended
13
4) DELIVERY and OFF-LOADING
It is recommended that the STANDARD electric boiler is transported and, if necessary,
stored on the pallet on which it is delivered from the factory.
If temporarily stored, the surroundings should be maintained at temperatures below
80degC, and without condensation at relative humidities between 30% and 80%
Manhandling the STANDARD electric boiler into position requires :-
(a) Qualified, skilled manpower
(b) Use of a pallet trolley or a fork lift truck
(c) Use of the lifting eyes provided on the boiler and tested of lifting beams
14
5) MAINTENANCE
Effective maintenance must aim at preventing : a). a reduction in the influx of fresh water through the boiler
- this can result in the formation of sediment or limescale on the
boiler immersion heater elements
b). pockets of high temperature water across the boiler immersion heater
elements – resulting in their destruction by overheating
c). accumulation of sediment or limescale within the boiler, particularly on
or around the boiler immersion heater elements – overcoming these
developments by the introduction of small amounts of fresh, clean water
without any inhibitor or de-scaling agent
Minimum maintenance periods
A). Monthly maintenance
i). Check operation of the automatic air vent
ii). Check operation of the water flow switch
iii). Check operation of the safety valve
B). Annual maintenance
i). Carry out the monthly checks
ii). Check all electrical connections
iii). Check all the electric control functions
iv). Check all pipework joints are water-tight
v). Drain off small amount of boiler water content and check for condition
C). 3-yearly maintenance
i). Carry out the annual maintenance
ii). Isolate the boiler safely from all services
iii). Drain the boiler of water and open up for inspection
iv). Check for all maintenance requirements and remedy as necessary
v). Close and seal the boiler, fill with fresh clear water through drain outlet
vi). Pressure test, then repeat annual maintenance procedure
15
6). GUARANTEE
7). IDENTIFICATION OF SPARE PARTS
16
7). IDENTIFICATION OF SPARE PARTS
Controller 790220
Flow sensor 583027
30kW immersion heater 2534
35kW immersion heater 2536
Limit thermostat 581104
Water flow switch 480230
8). FAULT DETECTION
Before making any physical check, switch off the power
FAULT CHECK
The ‘live’ light is out Check for incoming power
Check fuses F1 and F2
Check the ‘alive’ bulb
………………………………………………………………………………………………………………………..
The controller screen is out Check fuse F3
………………………………………………………………………………………………………………………….
Step 1 or Step 2 light is out Change the bulb
………………………………………………………………………………………………………………………….
The ‘red’ light is lit Check the limit thermostat
Check the water flow switch action
Check the circulating pump overload
…………………………………………………………………………………………………………………………..
If the fault remains Call in a qualified service engineer
17
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