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15
INDIRECT SYSTEMS
F
or models up to 300 litres a mains supply of 240V, 3kW (13 amps) will be
required for the direct immersion heater. heat resistant cable, round 3 core
2.5mm
2
(to BS) m
ust be used. For
High Capacity 500 litre models consult
the wiring diagram on the reverse of the inspection panel.
For indirect controls a 240V, 3 amp supply is required.
On floor standing models it is necessary to fit the thermostat using P.T.F.E
tape (Please consult the label on the f
ace of the unit for the correct location
in both cases).
The cables must be clamped in position (as previously stated) and the
control thermostat should be set at 60°C for the reasons above. In addition
to the thermostat there is a thermal cut-out should the thermostat fail. Refer
to
FIG. 2.14.
The indirect coil must not be connected to an uncontrolled heat source e.g.
solid fuel and must be connected to a thermostatically controlled appliance.
WIRING SCHEME
FOR
2 X 2 POR
T
MO
TORISED
VAL
VES
T6360B
R
OOM
THERMOSTAT
14
35
22
OR
CM 41
CM 51
A
B
1
5
V4043H
HEATING VALVE
BROWN
5
BLUE
2
GREY
1
ORANGE
10
GREEN/YELLOW
3
V4043H
HO
T WATER VALVE
BROWN
8
BLUE
2
GREY
1
ORANGE
10
GREEN/YELLOW
3
Honeywell ST 699B 1002
6
3
N
L
Link L-5-8
ST 6400/ST 6300 ST 6200 3 4 N L
Drayton Tempus 7 3 4 N L
Horstmann 425, 525, 527
1 4 E N L
Link L-2-5
Landis & Gyr R
WB2
3 4 N L
Glowworm Mastermind
Landis & Gyr R
WB20
3 4 N L
Microgyr
Potterton Miniminder 3 4 N L
Potterton EP2000/3000 - 3 4 N L
Link L-5 EP2001/3001
Randall 102/102 E 1 2 E 5 6
Link 3-6
Randall 4033
4
2
E
7
6
Link 1-6
Randall 701, 702
3
1
E N L
Link L-6-5
Sangamo M5
1
8 E 4 3
Link 1-6
Sangamo 410 Form 1
1
8
E
4 3
Link 3-6
PR
OGRAMMER
6 4
3 2 1
Pegler Sunvic
2 5 E N L
SP 50/100 (Link L-3)
Switchmaster
1 4 N L
Symphony, Sonata
Switchmaster 400, 600 3 1 N L
SWITCHMASTER 805, 900
3 1 N L
Sunvic ET 1451
7 4 E 1 2
Link 2-3-6
Sunvic DHP 2201 6 3 E 1 2
Towerchron FP
6 10 2 1
Link 1-5/4-7-9
T
o
w
erchron MP
6 10 2 1
Link 1-4/6-11
Towerchron 2000 HW HTG
N L
ON ON
ACL LS522, LS722 3 4 N L
Randall 922, 972
3
6 E N L
Link L-2-5
Randall 3020 P
4 2 E N L
and 3060
PROGRAMMER
6
4 3 2 1
1
Cylinder
ther
mostat
Thermal
cut-out
ELEMENT
3 kW 240V
~
Thermal
cut-out
Thermostat
1
8
6
Not
used
L1
240V~
N
P
2
P
2
240V
MAINS INPUT (3 AMP)
L1
N2
E3
240V
MAINS INPUT (13 AMP)
E
L
N
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
TYPICAL
JUNCTION BOX
FIG. 2.14
Basic Boilers (see P
age 16)
L
E
N
L N E
Baxi Solo 2 30PF To 80PF
PL SL E N L L N E
and 30RS to 60RS
Glo
ww
or
m Econom
y Plus
7 SL E N L L N E
(remo
v
e link SL-9)
Glowworm Spacesaver KFB50
9 12 E N L L N E
(remove link 12-7)
Glo
ww
or
m Ultimate SS
P SL E N L L N E
(remove link SL - 4)
Glo
ww
or
m Fuelsaver 100FF
P SL
E
N
L
L N E
(remove link 7 - 12)
Halstead Best r
ange
2
1
E N L L N E
Halstead Balmoral range 9 6 E N 12 L N E
Halstead Blenheim range LP 2 E N L L N E
Ideal Mexico Super 2 PL LB E N L L N E
Myson Apollo
PL ON E N L L N E
(remove all links)
Potterton Profile/Suprima PL SL E N L L N E
For ARISTON, Vaillant, Vokèra,
Burco Maxol and other makes, refer
to manufacturers instructions.
BOILER PUMP
9 10 3 2 1
9
10 2 3
Based on Honeywell Controls
www.tradeplumbing.co.uk Call Sales On 08708034288
www.tradeplumbing.co.uk Call Sales On 08708034288