28
27
Slimline
Series
Model
: PRTHW / PRTHW-N
Wiring Diagram
- PRTHW-N to UH1
PRTHW
B2 B1 A2 A1 N
L
230VAC
CH
HW
Mains Supply In
85V-230V AC
Live
Neutral
L
Cylinder
Thermostat
Hot Water Valve
To Boiler
N
L
Heating Valve
To connect boiler, consult
boiler makers wiring diagram
To Boiler
N
Wiring Diagram
- PRTHW
PRTHW-N
B2 B1 A2 A1
-
+
Y B
Network
12VDC
CH
HW
Connecting PRTHW-N to the UH1
The UH1 allows connection of up to eight
12 volt network thermostats.
When connecting network thermostats
to the UH1 use CAT5-FTP or BELDEN 9538.
Connect the screen to Earth at the UH1.
UH1
ZONE 1
ZONE 2
A2
A1
B2
B1
B
_
+
A2
A1
B
Y
_
+
Y
