Technical data

Boiler Installation Sequence 5
Instructions for Installation and Servicing turboMAX plus and thermoCOMPACT R1 23
Fig. 5.16
5.18 Controls (thermoCOMPACT boiler)
External electrical controls
The boiler terminals 3, 4 and 5 are for connecting
external electrical controls such as a programmer, room
thermostat, etc.
Terminals 3 and 4 are linked together when the boiler is
supplied. If external controls are used, this link must be
removed, and the controls connected across terminals 3
and 4.
Terminal 5 is an additional neutral connection for
external controls.
Connection of external electrical controls
Connection details using an external wiring centre
The boiler should be connected to the system controls
using an external wiring centre. Fig. 5.17, 5.18 shows
connection details for a system utilising a 3 port mid
position motorised valve, figure 5.19, 5.20 shows the
connection details for a system utilising two 2 port
motorised valves connected via an external wiring
centre (Important: the arrowed numbers indicate
connection into the relevant terminal of thre external
wiring centre).
3
987
MAINS
SUPPLY
230 V
50 Hz
L
L
LN
N
N
N
20 VDC
DO NOT USE IN UK!
3 A FUSE
SWITCH
CONTACTS
ROOM
THERMOSTAT
CLOCK
4
5
Fig. 5.17
Key:
XCentral heating on
YHot water on
ZHot water off
Connection details for control systems utilising 3 port motorised valve
via external wiring centre/junction box
Diagram only applies to the specific controls mentioned
LN
LN
345
ENL
X** Y** Z**
3 amp fused
main supply
THERMOcompact
terminal strip
Programmer
for programmer connections see fig. 16.b
LN
LN
345
E53678
External wiring centre/junction box*
345678910
N
N
L
L
*Do not use pre-wired printed circuit board type
not used
EARTH BLUE
BROWN
OR
WHITE
GREY ORANGE
3 Port mid position motorised valve
4E5 89
ECA
N
4
N
4
2
4
4
3
3
3
3
3
2
2
2
2
1
1
L
2
1
L
1
1
1
1
3
CB
E
E
E
E
Vaillant VRT 9090
ACL Drayton Digistat 2, 3, 4
ACL Drayton RTS 1, 2
Danfoss Randall RX-1
Danfoss Randall RMT 230
Danfoss Randall RET 230
Tower SS
Honeywell T6360
Horstmann HRT 1
Siemens-Landys & Staefa RAD 1
Sunvic TLX 2000 series
5 9 6 L N E
Room thermostat
21C
YL
3
3
2
2
BK
1
2
2
1
1
RED
C
1
1
3
ACL Drayton HTS3
Danfoss Randall ATC
Tower CS1
Honeywell L641
Horstmann HTC1
Siemens-Landis & Staefa RAM 1
Sunvic SA 2452
8 4 7 E
Cylinder thermostat
3E
2
E
** see key below
Fig. 5.18
NL
234
53 8
76
1
not used
Lifestyle LP241, LP 522, LP 722
Tempus 6, Tempus 7
Danfoss Randall CP 715, FP715
Note: *Earth not required
Danfoss Randall Set 2E, Set 3E
Note: *Earth not required,
Link L - 2 - 5
Grässlin Towerchron QE2
Honeywell ST699B, ST799A
Note: Link L - 5 - 8
Honeywell ST6200, ST6300, ST6400
Horstmann Channel Plus H21, H27
Note: *Earth not required,
Link L - 2 - 5
Siemens-Landis & Staefa RWB2, RWB9
Potterton Myson EP 2002, EP 3002, EP 6002
Note: Link L - 5
Sunvic Select 207
NL
234
53 8
76
1
E
NL
234
53 8
76
1
E
*
NL
234
53 7
86
1
E
*
56
NL
234
53 8
76
1
N3
567
56
78
4
L
3
8
NL
234
53 8
76
1
NL
234
53 7
86
1
E
*
56
NL
234
53 8
76
1
NL
234
53 8
76
1
NL
234
53 8
76
1
E
5
not used
not used
not used
not used
not used
not used
not used
not used
not used
not used