Valor Senator 276N Installation And Operation Manual - page 7
7
The valve is supplied in the open position.
To shut the valve:
1) Remove the screw cap and sealing washer by turning
counterclockwise
2) Turn the slotted plug clockwise as far in as it will go.
3) Replace the screw cap and washer.
To open the valve :
1)
Remove the screw cap and sealing washer by turning
counterclockwise.
2)
Turn the slotted plug counterclockwise until it is almost
level with the outer face of the valve body.
3)
Make sure that the sealing washer is over the screw cap.
Engage the screw cap bar into the slot in the plug.
4)
Turn the screw cap clockwise so that it turns the plug and
then screws into the valve body.
5)
Keep turning until the cap is fully sealed. The plug inside the
body will then be at the fully open position.
6)
Check for leaks at the cap seal.
Check for gas leaks
Always check for gas leaks after installation or servicing. When
testing for leaks:-
1. Make sure that the heater control is at the “off” position.
2. Open the manual shutoff valve.
3. Test for leaks by applying a liquid detergent to all joints.
Bubbles forming indicate a leak.
Never use an open flame to check for a leak!
4. Correct any leak detected immediately.
GAS PRESSURE CHECK
The supply pressure to the heater must be within the inlet
pressure figures stated in the specification table.
Pressure testing supply line
The appliance and its individual shutoff valve must be
disconnected from the gas supply piping system during any
pressure testing of that system at test pressures in excess of
½psig (3.5kPa).
The appliance must be isolated from the gas supply piping
system by closing its individual manual shutoff valve during any
pressure testing of the gas supply piping system at test pressures
equal to or less than ½psig (3.5kPa).
Pressure testing burner manifold
The burner manifold pressure is controlled by a regulator within
the thermostat unit. The manifold pressure must be within the
figures stated in the specification table. The pressure test tapping
point is at the right side of the burner unit (see figure 6).
Check pressure as follows
1) Remove the hexagonal screw from the tapping point.
2) Fit a manometer to the tapping.
3) Turn control to Pilot. Press igniter button to light pilot then
turn to “High”.
4) The manifold pressure should be within the limits shown in
the specification table.
5) If pressure is outside the limits, adjust by turning the
regulator screw located on the front face of the thermostat
(see figure 6).
6) Turn the gas off, remove the manometer and refit the
tapping screw
7) Check for leaks under tapping screw head.
Figure 5 Shut off valve operation
Figure 6 Manifold pressure test tapping & pressure
adjusting screw