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V4043H MOTORISED ZONE VALVE
CHECKOUT PROCEDURE
To ensure the valve is plumbed and wired correctly, carry out
the following checks after filling the system and switching on
the power:
1.
a. Check the manual lever is in 'AUTO' position.
b. Check programmer has power.
c. Check boiler is switched on and its thermostat set to
maximum.
2. Confirm correct hot water functions as follows:
a. Turn room thermostat to minimum setting or switch
off at programmer.
b. Set cylinder thermostat to maximum and program-
mer to 'HOT WATER ON'.
c. Pump should run (S Plan ONLY) and boiler should
fire (S and C Plan). Feel pipe approximately 12"
from valve port B, it should get hot.
3. Confirm correct heating functions as follows:
Whilst Honeywell takes all practicable steps to design and manufacture its products to comply with the requirements of the Heath
and Safety at Work Act 1974, all products must be properly used and Purchasers are reminded that their obligations under the
Act are to ensure that the installation and operation of such products at a place of work should be safe and without risk to them.
Honeywell reserves the right at any time and without notice to change any product or information contained in this publication.
The wiring diagrams and installation instructions in this publication are provided for guidance purposes when installing
recognised standard systems only. Any application of this product not shown here, or any deviation from these instructions, is
neither recommended nor advised. Any such application or deviation should be referred to Honeywell for technical assistance.
Honeywell Control Systems Ltd.
Arlington Business Park
Bracknell, Berkshire RG12 1EB
Technical help desk: 08457 678999
www.honeywelluk.com
a. Turn cylinder thermostat to minimum or switch off at
programmer.
b. Set room thermostat to maximum and programmer
to 'CENTRAL HEATING ON'.
c. Boiler should fire and pump should run. Feel pipe
approximately 12" from pump (C Plan), or valve (S
Plan) it should get hot.
COMPLETION
Reset both thermostats to temperature required, normally 60°
C for cylinder thermostat and 20° C for room thermostat.
Return programmer to 'Auto' or mode selected by
householder. Full installation, wiring and operating
instructions for SUNDIAL products are included in every
product pack. For special wiring diagrams or applications,
contact Honeywell. ENSURE THAT THE VALVE HEADS
HAVE FREE AIR MOVEMENT AROUND THEM.
® U.S. Registered Trademark
© 2012 Honeywell International Inc.
95C-10819—04
K.K. Rev. 08-12
Printed in United States
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