Advertisement
Valve position - In the event that mains power is disconnected the valve automatically
spring-returns to the Hot Water only position (Port A).
INSTALLATION AND OPERATING INSTRUCTIONS
POSITIONING OF VALVE
On new installations fit the valve ensuring that the actuator head is NOT below the
horizontal level of the pipework and that flow is in the direction of the arrow. Also check that
neither the open vent or the cold feed are isolated. This will ensure system and product
safety at all times.
Remember to make allowances for working, maintenance and replacement.
FITTING OF VALVE BODY TO PIPEWORK
Fit the valve body using the compression fittings provided.
Tighten the compression nuts sufficiently to make a watertight seal, only gripping the valve
by its body. T T a a k k e e c c a a r r e e n n o o t t t t o o o o v v e e r r t t i i g g h h t t e e n n . .
FITTING OR REMOVAL OF ACTUATOR TO VALVE BODY
P P L L E E A A S S E E N N O O T T E E ; ; B B e e f f o o r r e e b b e e g g i i n n n n i i n n g g t t h h e e i i n n s s t t a a l l l l a a t t i i o o n n , , o o r r a a n n y y s s u u b b s s e e q q u u e e n n t t r r e e m m o o v v a a l l o o f f t t h h e e a a c c t t u u a a t t o o r r , ,
p p l l e e a a s s e e e e n n s s u u r r e e t t h h a a t t t t h h e e o o v v e e r r r r i i d d e e l l e e v v e e r r , , l l o o c c a a t t e e d d o o n n t t h h e e s s i i d d e e o o f f t t h h e e a a c c t t u u a a t t o o r r i i s s i i n n t t h h e e r r a a i i s s e e d d
b b y y p p a a s s s s p p o o s s i i t t i i o o n n . .
Position the actuator on the valve body, taking care to line up the 4
on the valve body, with the receiving shaped slot located on the underneath of the actuator.
The actuator guide holes should line up with the spigot on the valve body.
The actuator locking mechanism will click into place, locking the head to the valve body.
P P a a g g e e 2 2
OPERATION
flat spindle, located
mm
Set the override lever to manual. Fill, test and thoroughly flush the system (See instruction
under the Specification section located on page 4 of this guide).
To remove the Actuator from the valve body please ensure that the override lever is placed
in the override position.
WIRING CONNECTIONS
The 5 core cable fitted to the actuator can now be connected to the system following the
simple colour-coded guide below.
W W i i r r e e C C o o l l o o u u r r
Blue
Any Neutral supply.
Orange
'Call' terminal of Cylinder stat if fitted, otherwise the HW ON terminal of
the programmer - Also link to Pump/Boiler live.
White
'Call' terminal of room stat if fitted, otherwise the CH ON terminal of
the programmer
Grey
'Sat' terminal of Cylinder stat if fitted, otherwise the HW OFF terminal of
the programmer
Yellow / Green Earth terminal of the wiring centre
An earth connection is required on the F328m and F328e valve. Ensure all connections are
good and the screws secure. A torque of 0.75Nm is recommended for fixing the wires in place.
N N O O T T E E : : In the event that the F328m or F328e is being used in an unconventional system, the
above connections may be incorrect. In this case, please seek advice.
To check whether the valve is operating correctly, carry out the following checks after the
system is filled and vented. Ensure that the override lever is back in the Auto position and the
insert guide is removed.
H H O O T T W W A A T T E E R R O O N N L L Y Y . .
Set the room thermostat to minimum or turn the CH off at the programmer.
Set the cylinder thermostat to maximum and turn the HW on at the programmer.
The valve should close Port A. The boiler should fire, pump run and the pipe on the Port B side
should get hot.
S S y y s s t t e e m m C C o o n n n n e e c c t t i i o o n n
P P a a g g e e 3 3
Advertisement
