36
Installation and Servicing
SECTION 2 - INSTALLATION
INSTALLER CONNECTIONS (RHS)
INSTALLER CONNECTIONS (LHS)
2.22 INSTALLER WIRING
The boiler must be connected to a permanent live supply which
must NOT be switched by thermostats / programmers.
To install the mains cable;
1.
Isolate the mains supply to the boiler.
2.
Remove the front panel. Refer to Section 3.2.
3.
Swing the control box down into the service position, unclip
and swing back the installer wiring cover to latch into the
retaining clips. Refer to Section 3.8.
4.
Route incoming cable through a grommet in the bottom panel,
(note that the grommets are “blind” and will require puncturing)
and securing using the strain relief.
5.
Connect the mains cable to the terminal block as shown.
6.
Close the installer wiring cover ensuring that it is located
correctly and that the cable is retained into the strain relief
as shown.
7.
Swing the control box back up into the operating position
and re-fit the front panel ensuring a good seal is made.
NOTE.
When making the mains electrical connections to the
boiler it is important that the wires are prepared in such a way
that the earth conductor is longer than the current carrying
conductors, such that if the cord anchorage should slip, the
current carrying conductors become taut before the earthing
conductor.
Strain Relief
4
3G9503b
L N
CH
ON
HW
ON
R/S
ON
HW
OFF
C/S
ON
Earths are not shown for clarity but must
never be omitted.
Frost Protection
If parts of the pipework run outside the house or if the boiler will be left
off for more than a day or so then a frost thermostat should be wired
into the system.
The frost thermostat should be sited in a cold place but where it can
sense heat from the system.
Note
.
If the boiler is installed in a garage it may be necessary to fit a
pipe thermostat, preferably on the return pipework.
INST
ALLA
TION
Summary of Contents for LOGIC MAX HEAT H 18
Page 4: ...4 Installation and Servicing...
Page 6: ...6 Installation and Servicing...
Page 61: ...61 NOTES Installation and Servicing...
Page 62: ...62 Installation and Servicing SECTION 5 SPARE PARTS...
Page 68: ...68 NOTES Installation and Servicing...
