Electrical Connections And Wiring - Honeywell vk41 series Handbook

ELECTRICAL CONNECTIONS AND WIRING

IMPORTANT IMPORTANT
Wiring must be in accordance with local regulations.
The appliance manufacturer's instructions should
always be followed.
Before installing or replacing any control check that
type number is correct for the application.
Ensure combustion chamber is free of gas before
start up.
Conduct a thorough check out when installation is
completed.
At the first start the ignition control can be in lock out;
depress reset button to free control.
WARNING
Take care that installer is a trained experienced service
man. Turn off gas supply before starting installation.
Disconnect power supply to prevent electrical shock
and/or equipment damage.
IMPORTANT IMPORTANT
Warranty claims are not accepted if the specified
plug/rectifier circuit is not used.
Wiring
• Use cable which can withstand 105°C ambient.
• Use cable which is proven against moisture.
• Wiring between ignition control and spark sensing probe
should have good quality insulation, suitable for the temper-
atures encountered.
Assembling of the cable connector(s) for IP 20 protection
Follow the sequence as mentioned under Assembling of the
cable connector(s) for IP 44 protection" except the assembling
of the grommet.
Assembling of the cable connector(s) for IP 44 protection ( fig. 12 .)
• Use cable with Ø 5 ... Ø 7 mm.
• Strip length cable: 15 mm
• Grommet inlet numbers1, 2, 4 applicable for cable
with Ø 5 ... Ø 7 mm.
• Grommet inlet number 3 applicable for cable
with Ø 4 ... Ø 7 mm.
• Mount the connector(s) and bring the cable grommet in
position over the cables and connector.
EN2R-9004 0606R20-NE
Connector
Grommet
2
1
Fig. 12.
Assembly of cover with integrated strain relief ( fig. 13 .)
Position the cover on the ignition control. Then, when holding
the cover down (in direction A) rotate it to mount the cable(s) in
the strain relief (in direction B).
Finally fix the whole assembly (ignition control and cover) with
a screw on the gas control with a torque of 40 Ncm max.
Disassembly of cover with integrated strain relief
• Loosen the cover screw.
• Pull up the cover screw by hand, lift the cover slightly and
push it in the direction of the cables.
Fusing
In order to prevent unsafe conditions at too high current, the
ignition controls S4565, S4575 and S4585 series have an
integral non replaceable fuse.
This fuse will be blown long before the maximum 16 A external
fuse switches off.
Spark gap
Max. allowable spark gap 3.5 mm
Supply voltage polarity
WARNING
If ignition control seems to operate normally but does
not detect flame, check for right polarity of power supply
(line, neutral).
Checking flame current
• The minimum value should be in accordance with specified
value.
• To check flame current connect a DC micro-Ampèremeter
between flame sensing wire and flame sensing rod.
• If flame current is insufficient check that flame sensing rod
is fully enveloped by the flame and that burner is reliable
grounded to ignition control.
• If there is no sufficient flame current due to phase-phase
mains it is recommanded to use a AT7030A or AT7030B
flame detection transformer. See also instruction sheet
EN1R-9136 for AT7030 transformer.
WARNING
4
3
Short µA meter during ignition, to prevent damage of
the µA meter in single rod application.
24
A
B
Fig. 13.