Connections & Filling - Ideal Heating LOGIC COMBI2 C24 Installation & Servicing

2.17 CONNECTIONS & FILLING
CAUTION: Heating the isolation valves may damage the
fibre seals
Fit each union with the fibre seals provided.
WATER CONNECTIONS CH
1. Connect the CH flow service valve (black handle) and
copper tail provided in the hardware pack to the threaded
boss connection provided at the lower rear of the boiler.
2. Connect the CH return. valve (black handle) and copper tail.
WATER CONNECTIONS DHW
1. Fit the DHW inlet service valve (blue handle) and copper
tail to the threaded boss connection ensuring the seal
provided is correctly located.
2. Fit the DHW outlet pipe tail to DHW outlet connection,
ensuring the seal provided is correctly located.
3. Fit the filling loop provided between the DHW inlet valve
and the CH return valve.
The domestic hot water flow rate is automatically
regulated to a maximum:
kW L/m
24 9.9
30 12.4
35 14.5
GAS CONNECTION
CAUTION: The gas service cock is sealed with a non-
metallic blue fibre washer, which must not be overheated
when making capillary connections.
For details of the position of the gas connection:
Refer to Section
Refer to Gas Supply
1.14
1.9
DHW
Outlet
CH Flow
Installation and Servicing
Section 2 - Installation
gpm
2.2
2.8
3.2
CH
Gas DHW
Supply Inlet Return
Filling
Loop
PRV DRAIN
The PRV connection, located at the bottom left-hand side
of the boiler, comprises an open ended grommet.
IMPORTANT
The grommet is designed for 15 mm Ø copper pipe.
If possible, preassemble and solder the pipework before
Installing.
If this is not possible the soldering must be more than
100 mm away from the grommet. Make sure the grommet
is not damaged by the heat.
Install the condensate pipe as follows:
1. Make sure that the 15 mm Ø copper
pipe is cut perpendicular to the pipe.
2. Make sure that the pipe is not
damaged, and clean and free from
burs.
3. Using pliers put the clip over the
grommet. Continue to hold the clip
open.
Note. Do not release the clip until step 5 (see below).
4. Push the copper pipe into the grommet (minimum of
15 mm). Make sure that the pipe is parallel with the
grommet.
5. Below the stop mark on the grommet open the pliers to
release the clip.
6. Make sure that the clip and pipe are attached correctly.
7. Make sure that the PRV discharge pipe is correctly
attached. Make sure that the angle of the pipe run is
sufficient to remove discharged water.
WARNING:
Make sure that the water or steam
(from the boiler) is discharged safely. Hot water or
steam is dangerous and can cause serious injury, and
damage to electrical systems.
Clip
SCAN
for video
Stop
point
15 mm
25