Ideal Boilers LOGIC MAX HEAT H 18, Installation & Servicing

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Installation and Servicing
SECTION 2 - INSTALLATION
ºC
ON
A E
B C D F G
MIN
e
RESTART
MAX
BOILER
OFF
BOILER
ON
2.27 GENERAL CHECKS
Make the following checks for correct operation:
WATER CIRCULATION SYSTEM
1.
With the system COLD, check that the initial pressure is correct to
the system design requirements.
For pre-pressurised systems, this should be 1.0 bar.
2. With the system HOT, examine all water connections for soundness.
The system pressure will increase with temperature rise but should
not exceed 2.5 bar.
3.
With the system still hot, turn off the gas, water and electricity
supplies to the boiler and drain down to complete the flushing
process.
Note: A flushing solution should be used during the flushing
procedure. Flushing solutions: Fernox Superfloc, Sentinel
X300 (new systems) or X400 (existing systems). Refer to
Section 1.22.
4. Refill and vent the system, add inhibitor (see Section 1.22), clear
all air locks and again check for water soundness.
5. Reset the system initial pressure to the design requirement.
6. Balance the system. Refer to Section 1.21.
7.
Check the condensate drain for leaks and check that it is
discharging correctly.
8. Finally, set the controls to the User’s requirements.
2.28 RESTART PROCEDURE
To restart boiler, press the “RESTART” Button (F).
Legend
A. Central Heating Temperature Knob
B. Mode Knob
C. Boiler Status
D. Burner ‘on’ Indicator
E. Central Heating Economy Setting
F. RESTART Button
G. Function Button
WATER TEMPERATURES
Temperatures can be selected using
the CH temperature control (A)
CENTRAL HEATING (CH) MODE
1. Ensure that the CH external controls are calling for
heat.
The display should show:
‘ ’ ‘ON’
2. Gas Rate
Check the boiler gas rate when the boiler is at
maximum output.
Check at the gas meter, with no other appliance
in use.
Refer to Table 2 for gas rates.
3. Set the central heating external controls to OFF.
The burner should go off and the pump continue
to run for two minutes. The display should read:
00
4. Check the correct operation of the timer (if fitted)
and all other system controls. Operate each
control separately and check that the main burner
responds.
Knob Setting CH Flow Temp ºC
Max 80
Min 30
INST
ALLA
TION