User Manual
PROGRAMMER WIRING GUIDE
Wiring of this unit should be carried out by a competent electrician.
While every effort is made to ensure the accuracy of the instructions given, you will appreciate that discrepancies may occur due any of a variety of reasons outside our control.
If after wiring your system you find that it does not work properly you should:
• Check that you have used the correct system and wired it correctly. Ensure that no wiring links have been missed and all screws are tight
As new equipment is introduced we will try to include it as soon as possible, in the interim the information will be made available on request.
RAA20
Y1 L
s
RWB
2 Channel Programmer
N L 1 2 3 4
Boiler and Pump connec-
tions.
Please refer to note 1.
Cylinder Thermostat Room Thermostat
2 3 1
RAM
Y1 L
RAA20
Mid position valve
FLOWMINDER
CMV322/CMV328
N L E S/L
1 2 3 4 5 6 7 8 9 10
JB1
Junction Box
3 Amp Fused Spur
240 volt input
N L E
3A
RWB Terminal Configuration
1. Off- Hot Water
2. Off- Central Heating
3. On - Hot Water
4. On - Central Heating
Flowminder Colour Codes
G/Y = Green/Yellow
B = Blue
O = Orange
Gr = Grey
W = White
L
S/L
N
E
P/L on
boiler
Live (2)
Switched Live (5)
Neutral (1)
Earth (3)
Pump Live
(5) Boiler Live
& Pump Live
(1) Neutral
(3) Earth
Boiler requiring
Pump overrun
NOTE 1
Basic
Boiler
B
G/Y
O
Gr
W
RWB
2 Channel Programmer
N L 1 2 3 4
Boiler and Pump connec-
tions.
Please refer to note 1.
Cylinder Thermostat Room Thermostat
1 2
RAM
Y1 L
RAA20
ZONEMINDER
CZV222
ZONEMINDER
CZV222
N L E N S/L
1 2 3 4 5 6 7 8 9 10
JB1
Junction Box
3 Amp Fused Spur
240 volt input
N L E
3A
RWB Terminal Configuration
1. Off- Hot Water
2. Off- Central Heating
3. On - Hot Water
4. On - Central Heating
Zoneminder Colour Codes
G/Y = Green/Yellow
B = Blue
O = Orange
Gr = Grey
Br = Brown
L
S/L
N
E
P/L on
boiler
Live (2)
Switched Live (5)
Neutral (1)
Earth (3)
Pump Live
(5) Boiler Live & Pump Live
(1) Neutral
(3) Earth
Boiler requiring
Pump overrun
NOTE 1
Basic
Boiler
G/Y
G/Y
O
O
BB
Gr
Gr
Br
Br
Zone control system
for boilers with or without pump overrun
Mid-position fully pumped system
for boilers with or without pump overrun
Gravity hot water, pumped central
heating system
1) Product index can be found next to the production date on the rear of the device,
“YYMMDDX”.
PKGRWB301CM_b 2019-02-21