Halstead Eden CBX, Installation And Servicing Instructions

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5.2
COMMISSIONING THE APPLIANCE
Refer to Figure 19
If, at any time during the commissioning procedure,
it is required to prevent the appliance from
modulating, set the CH temperature control knob to
the Service position.
To select Comfort DHW control, i.e. with pre-heat,
turn the DHW temperature control knob fully clockwise
and then back to the desired temperature setting. LED
2 will then illuminate and LED 1 extinguish.
With the CH temperature control knob in the
Service position, the appliance will fire continuously
at minimum heat input and LEDs 4 and 5 will flash.
This setting is for the convenience of the Service
Engineer ONLY.
If the Reset LED shows RED, to establish the cause press
and hold the Reset button for three seconds. The Reset
LED will flash RED and the error code will be displayed
via the LED's 1-4. Refer to 'fault finding' Section 8.
a) Check that the gas supply is turned ON and the gas service
cock is OPEN.
b) Slacken the screw in the appliance inlet pressure test point and
connect a suitable manometer. Refer to Figure 20.
c) Set the CH and DHW temperature control knobs fully
anticlockwise to the standby positions.
d) Switch on the electrical supply and set the ON/OFF switch to
ON (I). The Reset LED will briefly show red, then blue, then
extinguish. The fan will start briefly and then stop. The LEDs 1-4
(yellow) will illuminate briefly.
For CBX appliances
e)
Turn the DHW temperature control knob to the desired
temperature position and fully open any DHW tap. LED 1 will show
yellow (Economy mode). The ignition sequence will commence and
when flame is detected the Reset LED will show blue. If the burner
fails to light after five attempts, ignition lockout occurs. In this event
the Reset LED will show RED. To re-set the appliance and initiate a
further ignition sequence, press the Reset button.
f) After ignition, allow the appliance to run for at least 10
minutes and check that the gas supply pressure measured at the
appliance inlet pressure test point is: 20 ± 1 mbar for natural gas,
and 37 ± 1 mbar for propane appliances.
g) Close the DHW tap and ensure that the burner goes out (BLUE
light off) and the pump stops after an over-run period of 5 minutes.
g) Ensure that the room thermostat (if fitted) is calling for heat.
Turn the clock override switch to the 'I' position. Turn the CH
temperature control knob to the '+' position. The ignition sequence
will commence and when flame is detected the Reset LED will show
blue. The Reset LED will show BLUE and LEDs 3 and 4 will show
YELLOW.
h) Set the clock to the desired times by setting the tabs.
i) Slide the clock override switch to the 'timed' position _and
check the operation of the clock and room thermostat (If fitted).
For SBX appliances:
j)
Ensure that the programmer and room thermostat (if fitted) are
calling for heat. Turn the CH temperature control knob to the '+'
position. The ignition sequence will commence and when flame is
detected the Reset LED will show BLUE and LEDs 3 and 4 will show
YELLOW. Check the gas supply pressure; see item 'f' above.
k) Turn off the demand from the programmer/room thermostat, or
turn the CH temperature control knob to the 'standby' position,
and ensure that the burner goes out (BLUE light off) and the pump
stops after an over-run period of 2 minutes.
l) If the optional cylinder/tank sensor is fitted, check that the
appliance operates when the programmer is calling for heat and
the cylinder is cold.
Mains ON/OFF
Switch
CH Error Code
Indicator (3&4)
CH Temp.
Control
DHW Economy/
Comfort Switch
Economy/Comfort
Error Code LED (1&2)
Service Function
24hr Clock
•
•
BURNER (Blue)
LOCK-OUT (Red)
LED and
Reset Button
•
•
•
•
Pressure
Gauge
DHW
Temperature
Control
•
ARROW
INDICATES
CURRENT TIME
•
TABS OUT
= ON PERIOD
•
TABS IN
= OFF PERIOD
•
CLOCK OVERRIDE
SWITCH (Heating only)
= Continuous ON
= Timed
= OFF
19
FASCIA PANEL AND CONTROLS (CBX model shown)
•
• •
•
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