MOTORISED MID-POSITION DIVERTER VALVE V4073A
■ Installation
T
he V4073A Mid-position Diverter
Valve must be positioned where it
cannot block any vent or cold feed
w
hen either port A or B are closed.
It may be plumbed in at any angle
but the flow must go into Port AB
and must not be mounted so that
the powerhead is below the
horizontal level of the pipework.
If fitted in a confined space, sufficient
ventilation must be available to keep
the valve within its ambient
temperature range and access must
be provided to remove the powerhead
if necessary.
■ Ordering Specification
V4073A1039
22mm compression. 6.0 KV. Maximum
close-off differential pressure 0.69 bar
V4073A1054
As above, but
3
/
4
" BSP Female
V4073A1088
28mm compression. 8.1 KV. Maximum
close-off differential pressure 0.55 bar
V4073A1062
As above, but 1" BSP Female
40002737-003
240VAC replacement motor
40003916-003
Replacement powerhead
40003918-007
Plate & ball assembly kit – can be
used when replacing pre 1987 valves
272752A/U CARD
Replacement Ball & ‘O’ ring kit
■ Dimensions (mm)
■ Specification
Power Supply : 230VAC 50Hz
Power Consumption : 6W
E
lectrical Connections : 1m flying lead, heat resistant cable
Timings (Nominal) : Valve opens to Port A (from Port B) in 18
seconds (under power) Valve opens to Port B
in 8 seconds (under spring return)
Ambient Temperature Range : 5 to 50˚C
Flow Temperature : 5 to 88˚C
Static Pressure : 8.6 bar max
Flow Directions : See below
Standards : CE, UL, CSA
Approvals : 89/336/EEC & 73/23/EEC
■ Valve Operation
The V4073A operates as follows:
No power (on valve)
= HW only (port B open)
240V on white wire
= HW + CH (mid position)
240V on white & grey wires
= CH only (port A open), 240V
output on orange wire
240V in grey wire
= Valve held in last position
(but if last position was CH,
approx 100V output on
orange wire)
Note: Continuous operation of the valve motor at the fully open position (Htg only) is not recommended.
A 87
B 98
C 60
D
3
/
4
” 94
22mm 112
1” 94
28mm 117
E
3
/
4
” 124
22mm 133
1” 124
28mm 137
■ Flow Characteristics
© Honeywell Control Products and Systems, Issue 10, 4.21
0014_Section 4_dft10_v4.qxd:Section 2_dft9 15/10/07 16:20 Page 44
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