3
EN1R
-
9099 2004R8
-
NE
Mounting position
The gas control can be mounted 0 to 90
_
in any direction from
the upright position i.e. from the position when the knob is on
top.
Main gas connection
• Take care that dirt cannot enter the gas control during
handling.
• Use a clean taper fitting with thread according to BS 21 or
a piece of new, properly reamed pipe, free from swarf.
• Do not tighten the pipe or pipe fitting too far (see table
below). Otherwise valve distortion and malfunction could
result.
Pipe size
Max. length of pipe thread
1
/
2
”
18.6 mm
• Apply a moderate amount of good quality thread
compound to the pipe or fitting only, leaving the two end
threads bare. PTFE tape may be used as an alternative.
• Ensure the gas flows in the same direction as the arrow on
the bottom of the gas control.
Pilot gas connection
• Square off the end of tubing and remove burrs.
• Slip compression fitting over tubing.
• Insert tubing into gas control housing until it bottoms, slide
fitting into place and turn finger tight.
• Use a wrench to tighten fitting about
3
/
4
turn beyond finger
tight to make a pressure tight joint.
Do not use jounting
compound.
• Connect other end of tubing to pilot burner according to the
pilot burner manufacturer’s instructions.
CAUTION
Do not bend tubing at gas control after compression
fitting has been tightened, as this may result in gas
leakage at the connection.
Thermocouple connection
The gas control has an electrical thermocouple connection
and must therefore be kept clean and dry; thread compound
should never be applied to it. Tighten only
1
/
4
turn beyond
finger tight in order to give good electrical connection. When
routing the thermocouple tubing, do not bend it too sharply
(min. radius 2.5 mm).
Perform gas leak test
WARNING
FIRE OR EXPLOSION HAZARD CAN CAUSE
PROPERTY DAMAGE, SEVERE INJURY OR DEATH
• With the main burner in operation, paint all pipe joints
(including adapters) and gas control inlet and outlet with
with a rich soap and water solutionan approved leak
detection fluid.
• If another gas leak is detected, tighten adapter screws,
joints and pipe connections.
• Replace the part if gas leak can not be stopped.
CAUTION
Keep soap and water solution away from electrical
connections.
Electrical connection
CAUTION
Switch off power supply before making electrical
connections.
Take care that wiring is in accordance with local
regulations.
Follow the instructions supplied by the appliance
manufacturer. If there are no such instructions,
see fig. 2. and 3. for typical wiring diagrams.
Use lead wire which can withstand 105
_
C ambient.
The electric on/off servo operator is provided with:
both 6.3 mm terminals suitable for 6.3 mm receptacles (e.g.
”Series 250” AMP fasteners) and screw terminals,
or provided with:
quick connect terminals suitable for 6.3 mm receptacles
(e.g. ”Series 250” AMP fasteners) or for a female connector
according DIN 43650.
Wiring 220/240 V, 50 Hz (see fig. 2.)
Install the line voltage thermostat (or controller) and other
controls as required.
Provide hard PVC boots on the AMP terminals to prevent
touching of life terminals. When fitting a cover a Heyco
-
type
strain relief should be used.
Wiring 24 V, 50 Hz (see fig. 3.)
Install the transformer, low voltage thermostat and other
controls as required.
Adjust heat anticipater to the A rating as stamped on the gas
control.
Check for gas leaks with a rich soap and water
solution any time work is done on a gas control.
Gas leak test
• Paint all pipe connections upstream of the gas control with
with a rich soap and water solution.Bubbles indicate a gas
leak.
• If a gas leak is detected, tighten the pipe connection.
• Stand clear while lighting the main burner to prevent injury
caused from hidden gas leaks, which could cause flasback
Line voltage
Limit control
Thermostat
Valve operator
in the appliance vestibule. Light the main burner.
Fig. 2. Wiring 220/240 V, 50 Hz
