IDEAL isar HE24 User Manual

46
SERVICING
isar - Installation and Servicing
66 GAS CONTROL VALVE REPLACEMENT
1. Refer to Frame 57.
2. Remove the casing front & bottom panel.
Refer to Frames 49 & 50.
3. Swing the control box down into the servicing
position. Refer to Frame 51.
4. Unplug the electrical lead from the gas control
valve and disconnect the earth wire.
5. Remove the sensing tube from the gas control
valve.
6. Undo the gas inlet pipe union at the gas
service cock.
7. Undo the union nut on the outlet of the gas
control valve.
8. Slacken the screw securing the valve
mounting bracket and withdraw the valve,
complete with bracket and inlet pipe.
9. Transfer the mounting bracket and gas inlet
pipe to the new gas control valve.
10. Fit the new gas control valve, ensuring that
any seals showing damage or deterioration
are replaced. Reassemble in reverse order.
11. Ensure the sensing tube is correctly replaced
and not kinked or blocked in any way.
12. Check operation of the boiler. Refer to
Frame 57.
67 DIVERTER VALVE ACTUATOR REPLACEMENT
1. Refer to Frame 57.
2. Remove the casing front & bottom
panel.
Refer to Frames 49 & 50.
3. Squeeze the tab and unplug the
electrical lead from the valve
actuator.
4. Rotate the actuator anticlockwise
and pull forward to remove.
5. Fit new actuator and reassemble in
reverse order.
6. Check operation of the boiler. Refer
to Frame 57.
2040
Electrical
lead
Ta b
Diverter
valve actuator
SERVICING
203319-3.pmd 27/03/2008, 08:1546

IDEAL isar HE24 Specifications

General

Boiler Type	Combi
Central Heating Output	24kW
DHW Flow Rate	9.8 l/min
Mounting	Wall Mounted
Domestic Hot Water Output	24 kW
ERP Rating	A
Output	24 kW
Central Heating Flow Temperature Range	30-80°C
Dimensions	700 x 395 x 278 mm
Warranty	2 Years
Fuel Type	Natural Gas
Efficiency Rating	A Rated