Domestic Hot Water - IDEAL HE24 User Manual

Summer conditions - i.e. DHW only required.
Ensure the Winter/Summer switch (J) is set to summer.
Set the CH external controls to OFF.
Preheat will operate with the preheat switch (H) set to on.
The boiler will fire periodically for a few seconds to maintain the DHW
calorifier in a preheated condition. The average time period between
firing is 90 minutes. This may vary considerably due to the surrounding
ambient temperature of the boiler. The boiler will fire whenever there is
a demand for DHW.
The boiler preheat facility can be immobilised by turning the preheat
switch (H) to off. This will stop the boiler operating for short periods.
This facility is primarily provided for boiler installations in a sensitive area
(i.e. bedroom etc.).
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 65
low draw-off rate, adjustable via the DHW temperature control (F).
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 flow rate the higher the temperature, and vice
versa.
Central Heating
The boiler controls the central heating radiator temperature to a maximum
o
of 82 C, adjustable via the CH temperature control (E).
Approx. flow temperatures for the boiler thermostat settings are:
Knob Setting
Minimum
Maximum
To shut down the boiler
1. For short periods
Set the mains ON/OFF switch (A) to OFF
2. For longer periods
Set the mains ON/OFF switch (A) to OFF, and switch the electricity
supply to OFF. For longer periods the entire system should be
drained.
To relight the boiler
Repeat the procedure detailed in 'To light the boiler'.
1
BOILER CONTROLS
Legend
A. Boiler ON/OFF switch
B. Display
C. Reset button
D. Burner light
E CH temperature control
CAUTION. To avoid the possibility of injury during the installation, servicing or cleaning
of this appliance care should be taken when handling edges of sheet steel components.
Esprit -
User's
o
C maximum at
Flow Temperature
o o
C F
30 86
82 180
F. DHW temperature control
G. Pressure gauge
H. Preheat On/Off switch
J. Winter/Summer switch
K. Programmer (Optional)
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 CH temperature control left
in the normal running position.
Boiler overheat thermostat
This thermostat will shut down the boiler in the event of overheating.
Should this occur a fault code
button (C), 3 horizontal lines will display until the boiler cools and then
the boiler will re-light.
If the fault recurs, turn off the boiler and consult a CORGI registered
installer or in IE a competent person.
Flame failure
Should this occur a fault code
Press the rest button (C) and the boiler will relight.
If the fault recurs, turns off the boiler and consult a CORGI registered
installer or in IE a competent person.
Loss of system water pressure
The gauge (G) indicates the central heating system pressure. If the
pressure is seen to fall below the original installation pressure of 1-2 bar
over a period of time then a water leak may be indicated. In this event
conduct the re-pressurising procedure (see Trouble Shooting - Problem
4). If unable to do so or if the pressure continues to drop a CORGI
registered installer or in IE a competent person should be consulted.
DO NOT FIRE THE BOILER IF THE PRESSURE HAS REDUCED TO
ZERO FROM THE ORIGINAL SETTING.
Condensate Drain
The condensate drain must not be modified or blocked.
Blockage of the condensate drain, caused by debris or freezing, can
cause automatic shutdown of the boiler.
If freezing is suspected and the pipe run is accessible an attempt may
be made to free the obstruction by pouring hot water over the exposed
pipe and clearing any blockage from the end of the pipe. If this fails to
remedy the problem the assistance of a CORGI registered installer or in
IE a competent person should be sought.
Escape of gas
Should a gas leak or fault be suspected contact your local gas supplier
without delay.
Do NOT search for gas leaks with a naked flame.
B
min
F
preheat on
off
G
H
will be displayed. Press the reset
will be displayed.
C
D
reset
max min max
E
winter boiler on
summer off
J A K
esp8814
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