THERMAFLOW LTD | THERMAFLOW® ELECTRIC COMBINATION BOILER |
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2.6.2b OFF-PEAK & 24 HR WIRING CIRCUITS
18
E
E
N
N
L
6A 100A
MCB
ISOLATOR
E1
16A
E2
16A 16A
E3
E4
16A
2
A2
A1
A1
A2
1
E4
E3
E2
E1
~240VAC
SUPPLY
HEATING ELEMENTS
E3 not used on 9KW
models
N
1
2
4
3
13
5
11
16
14
12
15
10
9
8
7
6
17
C
N/C
N/O
C
L
N/C
C
N/C
C
2
1
HWP
C
N/O
CHP
C
3
4
C
C
2
2
1
1
C
IF E10 – Supply to
controls comes from
6A MCB in top control
IF Scottish Power
E2000 tariff –
External 3AMP 24hr
supply must be
taken to supply
controls as shown
NO NEUTRAL OR
EARTHS SHOWN FOR
CLARITY
Requires ~240v – 3AMP
Supply when using
Scottish Power Domestic &
Economy 2000 tariff
LINK REMOVED
if E2000 Tariff
LOW PRESSURE SWITCH
2
ND
STAGE HIGH LIMIT CUT
OUT MANUAL RESET
3
RD
STAGE HIGH LIMIT CUT
OUT MANUAL RESET
TAMPER PROOF CONTROL
THERMOSTAT SET TO 25°C
REMOVE
LINKS
AND FIT OFF PEAK CONTROL IF
E10 OR EXTERNAL PRIMARY HEAT SOURCES ARE
BEING LINKED TO THERMAFLOW BOILER
EXTERNAL PRIMARY HEAT TRANSFER PUMP
SOLAR CONTROLLER
TEMPERATURE CONTROL THERMOSTAT
AT BOILER 0-90°C (
SET TO 85°C
)
TAMPER PROOF CONTROL THERMOSTAT
SET TO
50°C
PUMP AT LOG
EXTERNAL PRIMARY HEAT
SOURCE CONTROLS
SOLAR
PUMP
Programmable
Thermostat
Ie. Danfoss
TP5000si or
equivalent
With battery
operated
contacts
CONTROLS
ONLY
Terminal A2 and
11 on solar relay.
See Diagram
T14 on solar or
solid fuel relay
.
T11 solid
fuel relay
A2 solid fuel
relay.
See Diagram
A
B
A – Solar Relay (Optional)
B – Solid Fuel Relay (Optional)
A1 A1
A2
14
11
A2
11
14
Fit link between terminal 14’s if
both solar and solid fuel are
being linked to the Thermaflow
18
NEUTRAL SHOWN AS
DOTTED & SOLID
LINE
SHOWS TWO
SEPARATE CIRCUITS
