Off-Peak & 24 Hr Wiring Circuits - Thermaflow TH6-150U M3 Instructions For Use Installation And Servicing

THERMAflow Ltd | THERMAFLOW® ELECTRIC COMBINATION BOILER | Tel: 0870 850 5207
2.6.2b OFF-PEAK & 24 HR WIRING CIRCUITS
E
A
A1
A2
11
14
N
E
CONTROLS
ONLY
HWP
C
N/O
Programmable
Room
Thermostat
Ie. Danfoss
TP5000si or
equivalent
.
B
A1 1 2 4
3
A1 A1
A2
2
1
11
A2 A2
14
1
2
L
3
4
C
5
N/C
6
7
1
8
9
10
11
12
13
14
15
C
16
17
1
18
N
E4 E3 E2
A1
16A 16A 16A
A2
1 2 3 4
HEATING ELEMENTS
E4
E3
E3 not used on 9KW
models
E2
E1
CONTROL STAT ON
E1 & E4
LINK REMOVED
if E2000 Tariff
C
N/C
C N/O
N/C
C
2
CHP
C
3
4
C
2
2
1
C
18
~240VAC
SUPPLY
IF E10 – Supply to
L N
controls comes from
6A MCB in top control
box
E1 6A 100A
IF Scottish Power
16A MCB ISOLATOR
E2000 tariff –
External 3AMP 24hr
supply must be
taken to supply
controls as shown
NEUTRAL SHOWN AS
DOTTED & SOLID
LINE SHOWS TWO
SEPARATE CIRCUITS
NO NEUTRAL OR
EARTHS SHOWN FOR
CLARITY
Requires ~240v – 3AMP
Supply when using
Scottish Power Domestic &
Economy 2000 tariff
LOW PRESSURE SWITCH
1stD
STAGE HIGH LIMIT CUT
OUT MANUAL RESET
2nd
STAGE HIGH LIMIT CUT
OUT MANUAL RESET
TAMPER PROOF CONTROL
THERMOSTAT SET TO 25°C
LINKS
REMOVE AND FIT OFF PEAK CONTROL IF
E10 OR EXTERNAL PRIMARY HEAT SOURCES ARE
BEING LINKED TO THERMAFLOW BOILER