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834177_13GB_042005.qxd 09.03.2005 17:57 Uhr Seite 30
4 Boiler installation sequence
4.17.4 Connection details for time switch
ACL Drayton
Tempus 1, Tempus 2
Lyfestyle LP111, LP711
ACL Drayton
Switchmaster
SM300
ACL Drayton
Switchmaster 980
Danfoss Randall
103 Series
Danfoss Randall
Set 1E, TS975
Danfoss Randall
TS715
Grässlin Towerchron
QE1, QM1
Honeywell
ST610A, ST6100C
Horstmann
Channel Plus
H11, H17, 425 Coronet
Horstmann
Centaur Plus
C11, C17
Landis & Staefa
RWB7, RWB30
Potterton Myson
EP 4002, EP 5002
Smiths Timeguard
SupplyMASTER
FST11, FST17
Sunvic
Select 107
Fig. 4.21
20 VDC (DO NOT USE 7, 8, 9 IN UK!)
7 8 9 L N
3 4
5
L N 1 2 3 4
L N
L N 1
3
2
4
3 4
L
L
N
N 1
4
2
L
1
N 4
2 3
A
3
B C
6 5 E
3 4
3
4
L N E
3
1
L N
2
E
3 4 5 6
L
L
N E
N 1 2 3 4
4 3
L
L
N
N 1
3
2 3
4
4
L
L
N
N 1
L
L
N
N E
3
1
2
3
4
3 4
2
4
3 4 5 6
L
L
N E
N E
L
L
N E
N 1
1 2 3
2
3
3 4
4
4
4
3
L
N
N
A B
1 2 3
C
3
D
4
L N 1
4
2 3 4 5 E
6
L
5
N 4 3 E
E mains supply
4 3 2/L 1/N
L N 1 2 3
L
4
N E
L N 3 4
MAINS
SUPPLY
230 V
50 Hz
N
L
3 A FUSE
SWITCH
CONTACTS
ROOM
THERMOSTAT
N
L
CLOCK
N
Fig. 4.22
Instructions for installation and servicing ecoMAX
834177_13GB_042005.qxd 09.03.2005 17:57 Uhr Seite 31
Boiler installation sequence 4
4.17.5 Connection details for external time switches and boiler terminal strip
Fig. 4.20 shows the connection details where a time switch is used without a room thermostat to control the boiler.
Important:
The arrowed numbers indicate connection into the relevant terminal in the boiler terminal strip.
4.19 Thermostatic radiator valves
The boiler has a built in automatic bypass valve making it ideal for use in systems with thermostatic radiator valves (no separate system bypass is required). For optimum fuel economy where TRV’s are used they must be used in conjunction with a boiler control interlock. A programmable room thermostat or separate timer and room thermostat will ensure complete boiler shut down when the heating demand is satisfied. (The radiator in the room containing the room thermostat should not be fitted with a TRV).
If a room thermostat is to be connected in addition to a time switch the wire between the time switch ”ON” terminal and boiler terminal 4 should be broken by the contacts of the room thermostat (see schematic layout,
Fig. 4.21).
4.17.6 Vaillant optional plug in timer accessories
Refer to the instructions supplied with the optional accessories for connection details. Upon completion of all electrical connections refit the terminal box cover by pushing into place. The cover is secured by two locking clips.
4.20 Frost protection
The boiler has an integral frost thermostat which is designed for protection of the boiler. To protect remote or exposed parts of the heating system or property additional frost protection measures must be taken such as the installation of an external frost thermostat. This frost thermostat should be connected across the boiler terminals 3 and 4, in parallel with any external heating controls.
Note:
External frost protection cannot be used when plug in timers are utilised.
4.18 Controls (ecoMAX 600)
4.18.1 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.
4.21 Circulating pump
The boiler incorporates a built in circulating pump that is fully prewired (no additional wiring is necessary). The pump incorporates an automatic overrun period after the boiler switches off.
4.18.2 Connection of external electrical controls
4.22 Anti–cycling ‘economiser’ control
The boiler incorporates a built in anti–cycling control to ensure that energy wasteful short cycling of the boiler cannot occur. This control prevents the boiler from re–igniting for a preset period after central heating operation (the hot water operation is unaffected by this control and hot water can be drawn at any time).
4.18.3 Connection details using an external wiring centre
The boiler should be connected to the system controls using an external wiring centre. Fig. 4.22, 4.23 shows connection details for a system utilising a 3 port mid position motorised valve, figure 4.24, 4.25 shows the connection details for a system utilising two 2 port motorised valves (Important: the arrowed numbers indicate connection into the relevant terminal of the external wiring centre).
Note:
To temporarily override the anti–cycling control turn the main boiler on/off switch to the off position ”0” and then back to the on position
”I” after a few seconds.
4.23 Automatic pump spin control (APS)
The boiler incorporates a built in control which will spin the built in circulating pump and operate the diverter valve (ecoMAX 800) once in a 23 hour period. This control helps to prevent seizure when the boiler is not operated for a period of time. This control is not active when the power supply to the appliance is turned off.
Instructions for installation and servicing ecoMAX
834177_13GB_042005.qxd 09.03.2005 17:57 Uhr Seite 32
4 Boiler installation sequence
Fig. 4.23
Connection details for control systems utilising 3 port motorised valve via external wiring centre/junction box
Diagram only applies to the specific controls mentioned
3 amp fused main supply
L N L ecoMAX terminal strip
N 3 4 5
Programmer for programmer connections see fig. 16.b
E N L
CENTRAL
HEATING
ON
HOT
WATER
ON
HOT
WATER
OFF
L N
Cylinder thermostat
L N 3 4 5 E
External wiring centre/junction box*
N
N
L
L
3 4 5
*Do not use pre-wired printed circuit board type
6 7 8
5
9 10
3
8 4 7 E
Room thermostat
6 7 8 not used
5 9 6 L N E
ACL Drayton HTS3
Danfoss Randall ATC
Tower CS1
Honeywell L641
Horstmann HTC1
Siemens-Landis & Staefa RAM 1
Sunvic SA 2452
2 1 C
3 2 1
YL BK RED
2
3
1
2
C
1
3
2
2
1
1
3
E 5 9
E
E
8 4
EARTH BLUE
BROWN
OR
WHITE
GREY ORANGE
3 Port mid position motorised valve
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
4
2
4
E C A
N
3
3
4
N
4
3
2
3
2
2
1
3
2
L
1
1
1
1
3
2
1
1
L
C B
E
E
E
E
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
N L 1 2 3 4
5
E
3
N L
8 not used
7
1 2
6
3 4
E
*
E
5
N L
5
N
3
3
L
1
8 not used
7
2 3
1
8
7
2 not used
2
7
3
6
4
3
8
4
6
6
4 5 6 not used
*
5
N L
3
1
5
L
3
N 3
8 not used
7
4 5
6
6 7
3
5
N L
6 not used
1 2 3
7
4
8
8
5
E
3
N L
8 not used
7
1 2
6
3 4
* 5
N L
3
1
7
2 3
8
4
5
E
3
N L
8 not used
7
1 2
6
3
6
4
N
5
L
3
1
8 not used
7
2 3 4
6
5
5 6 not used
5 3 8 not used
7 6
Fig. 4.24
Instructions for installation and servicing ecoMAX
834177_13GB_042005.qxd 09.03.2005 17:57 Uhr Seite 33
Boiler installation sequence 4
Connection details for control systems utilising 2 x 2 port motorised valves via external wiring centre/junction box
Diagram only applies to the specific controls mentioned
3 amp fused main supply ecoMAX terminal strip
L N E L N 3 4 5
Programmer for programmer connections see fig. 16.d
N L
CENTRAL
HEATING
ON
HOT
WATER
ON
HOT
WATER
OFF
L N
Cylinder thermostat
L N 3 4 5 5 3 6 7 8
External wiring centre/junction box*
N
N
L
L
3 4 5
*Do not use pre-wired printed circuit board type
6
10 7 E
7 8 not used
Room thermostat
9 10
5 9 6 L N E
ACL Drayton HTS3
Danfoss Randall ATC
Tower CS1
Honeywell L641
Horstmann HTC1
Siemens-Landis & Staefa RAM 1
Sunvic SA 2452
YL BK RED
2
3
1
2
C
1
3
2
2 1
3 2
2
1
C
1
1
3
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
N
4
2
4
E C A
3 1
N
4
3
3
2
L
2
1
4
3
2
3
2
2
1
L
1
1
1
1
3
C B
E
E
E
E
E 5 10 3 4
E 5 9 3 4
EARTH BLUE BROWN GREY ORANGE
Hot water 2 port motorised valve
EARTH BLUE BROWN GREY ORANGE
Central heating 2 port motorised valve
Fig. 4.25
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
Fig. 4.26
Instructions for installation and servicing ecoMAX
*
E
N L
5
E
E
3
1 2 3 not used not used
7
N L 1 2
4
5 3 not used not used
7
N L 1 2 3
6
3
5 3 not used not used
7
N L 1 2 3
4
6
4
6
4 5 6
5
L
*
5 3
N L 1
7
2 3 not used
6
4
3 not used not used
7
N 3 4 5
6
6 7 8 not used
3 5 6 not used
N L 1 2 3
7 not used
4
5
E
3 not used not used
7
N L 1 2
6
3 4 5 6
*
5 3
N L 1
7
2 3 not used
6
4
5
E
3
N not used not used
7
L
1 2
6
3
5 3 not used not used
7
N L 1 2 3 4
5 3 not used not used
7 6
4
6
5 not used
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