Installation; General; Assembly; Fitting The Pressure Relief Discharge Pipe - Main Eco Compact System 15 Installation And Service Manual

6

Installation

6.1

General

Fig.25 Mounting the boiler
b
Fig.26 Connecting the taps
6.2

Assembly

Fig.27 Pressure relief pipe connection
Installation must be carried out in accordance with the prevailing
regulations, codes of practice and the recommendations in this manual.
Danger
If the boiler is installed in a compartment do not use it for storage
purposes. Do not obstruct any purpose provided ventilation
openings.
Caution
Where the boiler is sited in an unheated enclosure provision must
be made to protect against frost, e.g. frost thermostat, pipe
thermostat.
1. Lift the boiler by gripping "a" and "b" and hook the boiler onto the wall
plate.
a
2. Remove the polstyrene bottom piece by slipping it off downwards.
c
PN-0000320
3. Remove the sealing caps from the boiler connections under the boiler
(including the condensate trap).
c
Warning
Some residual water may escape when removing the sealing
caps. Take precautions to avoid damage to components !
4. Remove the taps and sealing washers from the fitting kit. The taps
accept 22mm copper pipe — see template.
5. Using the sealing washers provided connect the appropriate tap to the
heating flow and return & gas supply.
6. Always fit the tap with the drain point to the heating flow.
7. Ensure all joints are tight.
Important
Connect the pressure relief discharge pipe first before any other
pipework.
PN-0000322
6.2.1
1. The valve and discharge pipe are assembled to the boiler, terminating
in a threaded male coupling.
2. Determine the routing of the discharge pipe in the vicinity of the boiler.
Make up as much of the pipework as is practical, including the 15mm
elbow and nut supplied.
Important
Make all soldered joints before connecting to the pressure relief
valve. Do not adjust the position of the valve. The discharge pipe
must be installed before pressurising the system.
3. The pipework must be at least 15mm diameter and run continuously
downwards to a discharge point outside the building.
4. Complete the discharge pipework and route it to the outside discharge
point.
PN-0000632
5. The pipework must be clipped at suitable intervals to support it,
commencing as close to the boiler as possible.
Sealing caps

Fitting the pressure relief discharge pipe

6 Installation
35