INSTALLATION INSTRUCTIONS
Step 1. Select Valve Position:
Choose a suitable position for the valve in the
circuit to be controlled, which allows sufficient
access for wiring and maintenance.
The position chosen must not isolate the boiler
from the open vent or the cold feed pipe work.
The valve may be fitted in a horizontal, vertical or
inclined orientation. The valve must not be fitted
on the return circuit.
The actuator must not be fitted below the valve
body.
Step 2. Fit Valve Body to Pipe work:
Fit the valve body using the 22mm
compression nuts provided. Ensure
that the valve body is only gripped on
the hexagonal faces at the valve ports.
Take care not to over tighten. Port A
should be connected to CH and Port B
connected to DHW.
Step 3. Fit Actuator to Valve Body:
Position the actuator on the valve body by locating the
spindle in the cam slot.
Rotate actuator until the locating lug (shown) lines up
with locating lug-hole on the mounting plate (shown).
Fix the actuator to the body by lightly tightening the
screws provided.
Set the override lever to MID. Fill, test and thoroughly
flush the system.
VALVE
BYPASS
AUTO
VALVE
THREE PORT
DOMESTIC HOT
RADIATORS
PUMP
BOILER
WATER CYLINDER
Locating Lug Manual Lever
