Connection Details For Connection To; Any Uk Standard Boiler - Vaillant uniSTOR VIH GB SERIES Instructions For Installation And Use Manual

5.4.5.4 Connection details for connection to any UK standard boiler
Main Supply
3 Amp Fused
N
E 1/N 2/L
E N
E BL BR GR OR
Central Heating 2 Port
Motorised Valve
Fig. 13 2 x 2 port valve system
Boiler Terminal Designation:
L, 1: Mains Live
RS, 2: Room Thermostat
FS, 3: Frost Stat
N, 4: Mains Neutral
E, 5: Mains Earth
PE, 6: Pump Earth
PN, 7: Pump Neutral
PL, 8: Pump Live
CE: Chassis Earth
BR Brown
BL Blue
GR Grey
OR Orange
W White
DHW Domestic Hot Water
HTG Heating
uniSTOR GB
Boiler Terminal
L
External wiring box
(Do not use pre-wired printed circuit board type)
1 2
3 4
N
L
9 L 4 6 N
L in N
Room Thermostat
L N SL
L N E 4
5 6 7 8 9
not used
9 E E 1/N
E BL BR GR OR
L out E
Hot Water 2 Port
Motorised Valve
uniSTOR VIH GB ...
Important:
1-10 must go to the corresponding number in the wiring
box.
Installation 5
2 Channel Programmer
HW
N L
ON
E N L 7
4 N
L N
10
Pump
10 2/L 4 7 10
1 2
Cylinder Stat
CH
ON
6
E
3
19