Grant Aerona - Appendix C - 3-Port Mixer Valve; General; Clockwise Rotation

Appendix C: 3-Port Mixer ValvePage 46
C.1 GENERAL
The Grant Aerona Smart controller can manage the temperature
of an adjustable circuit with the use of a motorised rotary actuator
mounted on a 3 port valve.
When conguring the system using the creator, if you choose to
use a mixing valve the creator will prompt for a valve opening
time. This value is the time the actuator would take to move
fully from one end of its movement spectrum to the other under
nominal power and is used to calculate movement for mixing.
C.2 CLOCKWISE ROTATION
C.2.1 ASSEMBLY
Flow
UFH Flow
3
2
1
4
5
6
7
8
UFH Return
Flow
Figure C-1: Motorised Actuator and 3-Port Valve
Table C-1: Motorised Actuator and 3-Port Valve
Number Description
1 3-Port valve
2 Body scale plate
3 Valve drive adaptor
4 Anti-rotation peg
5 Motorised actuator
6 Actuator scale plate
7 Rotary handle
8 Fixing Screw
Appendix C - 3-Port Mixer Valve
To correctly assemble the 3-Port Mixing valve you will need to:
1. Ensure the clutch of the motorised actuator is disengaged
allowing for free movement with the rotary handle. To
disengage, place a screwdriver into the slot available, press
down and turn clockwise. You will have disengaged when the
arrow is facing the direction of the hand. Refer to Figure C-2.
Figure C-2: Actuator gearing latch switch
2. Ensure actuator scale plate is in position and set as per
Figure C-1. i.e. '0' to the left.
3. Fit the valve lever (supplied with the actuator) onto the
splined shaft end. Rotate lever anticlockwise as far as
possible. If necessary, remove and ret lever to point to
'0' position on the scale.
4. Unscrew, remove and discard the xing screw and blue
handle attached to the supplied 3-port valve body
5. Fit the grey drive adaptor onto the 3-port valve spindle and
turn until the pointer is facing the 0 position on the valve
body scale plate. (The drive adaptor will only attach in one
position).
6. Slot the Anti-rotation peg in place.
! NOTE !
If the Anti-rotation peg is not tted the motorised actuator
will spin in place and not turn the valve as required.
7. Place the motorised actuator onto the valve aligning the
drive adaptor and ensure the Anti-rotation peg slots into the
actuator body.
8. Insert the xing screw through the rotary handle and fasten to
a maximum torque pressure of 0.8Nm.
9. Reset the clutch of the actuator following step 1 to make the
arrow point to A (Auto). If enabled the rotary handle will be
locked in place.
C.2.2 WIRING
The electrical cable supplied with the actuator is connected as
follows:
Table C-2: Electrical cable wiring
Colour Description
Brown 230V drive to close the valve
White 230V drive to open the valve
Blue 230V neutral
The motorised actuator is connected via the 2 lives and 1 neutral
connection to the wiring centre of either H2-M (Circuit 2) or
H3-M (Circuit 3). The live connections power the motor in either
direction to open or close the valve as required. Refer to Section 5
Figure 5-1 for wiring centre schematic.
For example for circuit 2:
• H2-M On (Terminal 3) - White
• H2-M O󰀨 (Terminal 5) - Brown