Heatmiser UH8, Руководство по установке, Страница: 3 / 9

Wiring Centre 4 5 Model: UH8
Zones 1…8
Zones outputs are clearly marked
L = live out to actuator or valve
N = neutral to actuator or valve
There are two connections live (L) and neutral (N), both terminals
marked L are the same and both terminals marked N are the same.
Each zone output corresponds to the thermostat wired in at the
top of the pcb.
UFH Pump
Used for an underfloor heating manifold pump.
Connections are clearly marked
L = Live
E = Earth
N = Neutral
When an under-floor heating zone sends a call for heat to the UH8, the
live & neutral output will supply 230v to the manifold pump.
It is recommended that this is fed through a high limit switch placed
on the heating manifold, to protect against mechanical failure of the
manifolds temperature control.
UFH Valve
Used for an underfloor heating manifold valve.
Connections are clearly marked;
Gr = Grey
Or = Orange
L = Live
E = Earth
N = Neutral
When an under-floor heating zone sends a call for heat to the UH8,
the live & neutral output will supply 230v to the manifold valve.
The auxiliary wires of the valve, usually grey & orange, are wired to the
Gr & Or terminals.
Fuses
Fuse 1. 5amp, 20mm anti-surge fuse, this fuse supplies
power to all 230v outputs from the board it protects the zone,
pump/valve outputs.
Connections
Mains Supply
Power supply into the UH4 which should be fused at 5 amps these
connections are marked
L = live or phase 230v AC 50/60Hz
N = Neutral
E = Earth
Heat Enable
This is the main call for heat for the system, there are 3 connections;
LS = Live Supply
E = Earth
LR = Live Return
Electrically this is a volt free switch, whatever supply is placed on the
LS connection, is fed to the LR connection when there is a call for heat.
UH8 Wiring
Ratings
Number of Heating Zones 8
Neon Indication Y
DIN Rail Mounting Y
Supply
230v AC 50Hz 1 Phase
Relay Load Max 3 Amp Resistive
Total Load Max 5 Amp Resistive
IP Protection IP20
Installed Dimensions (L,H,D) 384 x 148 x 60mm
Weight 800g