Wunda E09 - Section B: Typical wiring scheme for single zone UHF system with a Combination Boiler

7
8
Wiring Key
Orange
Grey
Brown
B
O
G
Wiring Schematic A
Some Earths & Neutrals
omitted for clarity
1 2 3 4 5 6 7 8 9 10
Combi Boiler
+ Time Clock
00:00
L N SL SI
RAD room
stat
L N L1
M
B
O
G
M
B
O
G
L N E
230V
50Hz
Wundafloor wiring centre used with multiple
Programmable thermostats on UFH system.
Underfloor
Heating pump
E
L
N
Underfloor
Zone valve
Radiators
Zone valve
Wiring Key
Orange
Grey
Brown
B
O
G
1 2 3 4 5 6 7 8 9 10
Combi Boiler
+ Time Clock
00:00
L N SL SI
L N L1
RAD room
stat
L N L1
Underfloor
Heating pump
M
E
L
N
B
O
G
M
B
O
G
L N E
230V
50Hz
Some
Earths &
Neutrals
omitted for
clarity
Underfloor
Zone valve
Radiators
Zone valve
*Thermostat may be
powered from a seperated
(localised) fused spur.
**Standard dial thermostats
may be power from a time
clock.
*
**
Wundafloor Programmable
Thermostat
S-Plan
Wiring centre
S-Plan
Wiring centre
2B Typical wiring scheme for multi zone UFH with a combination boiler
3B
Typical wiring scheme for single zone UFH with a combination boiler
This drawing is for guidance only.
All installations should be undertaken by a
qualified person only.
This drawing is for guidance only.
All installations should be undertaken by a
qualified person only.
Section B 3B : Typical wiring scheme for single zone UHF system with a Combination Boiler
This drawing is for guidance only.
All installations should be undertaken
by a qualified person only.
E09
Installation guide - wiring & plumbing
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