Operation; Weather Compensation; Boiler Overheat Protection; Domestic Hot Water - IDEAL Logic Code Combi ES26 User Manual

operation

Winter conditions - i.e. Ch and DhW required.
Ensure the mode knob control (D) is set to winter (
The boiler will fire and supply heat to the radiators but will give
priority to DHW on demand.
summer conditions - i.e. DhW only required.
Set the mode knob control to Summer (
Set the CH external controls to OFF.
note. The pump will operate briefly as a self-check once every 24
hours, regardless of system demand.
Control of Water Temperature

Domestic hot Water

The DHW temperature is limited by the boiler controls to
64 C maximum at low draw-off rate, adjustable via the DHW
o
temperature control (B).
Approx. flow temperatures for the boiler thermostat settings are:
Knob setting
Minimum
Maximum
Due to system variations and seasonal temperature fluctuations
DHW flow rates/temperature rise will vary, requiring adjustment
at the draw off tap : the lower the rate the higher the temperature,
and vice versa.

Central heating

The boiler controls the central heating radiator temperature to a
o
maximum of 80 C, adjustable via the CH temperature control (C).
The Logic Code Combi ES is a high efficiency combination boiler
which is most efficient when operating in condensing mode.
The boiler will operate in this mode if the CH temperature control
(C) is set to the 'e' position (economy mode). This control should
be set to maximum for very cold periods.
Further savings can be achieved by setting CH termostat below
halfway.

BOILER COnTROLS

1
A
Ideal Logic Code Combi ES -
)
).
Flow Temperature
o o
40 C (104 F)
o o
64 C (147 F)
B E
G
User's

Weather Compensation

When the Weather Compensation option is fitted to the system
then the CH Temperature Control (C) becomes a method of
controlling room temperature. Turn the knob clockwise to
increase room temperature and anti-clockwise to decrease room
temperature. Once the desired setting has been achieved, leave
the knob in this position and the system will automatically achieve
the desired room temperature for all outside weather conditions.
To Shut Down the Boiler
Set the mode knob control to OFF
To Relight the Boiler
Repeat the procedure detailed in 'To light the boiler'.

Frost Protection

If no system frost protection is provided and frost is likely during
a short absence from home, leave the heating controls (if fitted)
at a reduced temperature setting. For longer periods, the entire
system should be drained.
If the system includes a frost thermostat then, during cold
weather, the boiler should be turned OFF at the time switch (if
fitted) ONLY. The mains supply should be left switched ON, with
the boiler thermostat left in the normal running position.

Boiler Overheat Protection

The boiler controls will shut down the boiler in the event of
overheating. Should this occur, a fault code
Refer to fault chart.
Flame Failure
Should this occur a fault code
chart.
Legend
a. Blank
B. DHW Temperature Control
C. CH Temperature Control
D. Mode Control
F C J
H
will be displayed.
will be displayed. Refer to fault
continued . . . . . .
E. Boiler Status
F. Burner 'on' Indicator
g. Pressure Gauge
h. Condensate Drain
J. Economy Mode
D
3