red
COMPACT 24 BOILER
Chapter
6
USE AND MAINTENANCE MANUAL
page
21
Hydraulic and electrical connection
Technical dept. - All rights reserved - Reproduction prohibited
IMPORTANT!!!
WASH THE ENTIRE SYSTEM BEFORE CONNECTING THE BOILER IN ORDER TO REMOVE
ALL RESIDUE AND DEPOSITS.
Always install cut-off gate valves upstream of the boiler in order to isolate it from the
hydraulic system should it be necessary to move it to perform routine and/or
unscheduled maintenance.
Connect the boiler using flexible pipes so as not to bind the boiler excessively to the
system and allow minor movements.
6.1.1.
hydraulic kit
The boiler comes with a complete kit for the production of domestic hot water, consisting of:
A plate heat exchanger
A three-way diverter valve
Water flow meter
Pipes and unions for connection
The kit is designed to heat domestic water directly from the home water supply system. RED supplies the kit
ready-assembled.
When the tap is turned on and hot water is needed, the internal water flow meter will send a signal to the
diverter valve to channel the hot water from the boiler (where it is stored) to the plate heat exchanger. The
temperature of the domestic water depends a great deal on the temperature of the water inside the heating
system. This can be calculated to a good degree of accuracy by taking 10°-15 °C away from the value shown on
the control panel of the boiler (which is the temperature of the water in the boiler).
If hot domestic water is needed while the boiler is in ECO-STOP mode, 30 seconds after the request, the boiler
will automatically and immediately begin the start-up process to heat the water inside the boiler, and then the
domestic hot water.
To ensure that the plate heat exchanger continues to operate correctly over time, it is
important that you know the water hardness of your system to prevent deposits from
forming.
If the water in your home is very hard, you are advised to install a softening system
upstream.
You are advised to maintain the plate heat exchanger annually to eliminate calcium
sediments and mineral salts or to replace heating plates with new ones. RED supplies
these replacement parts.
1 PUMP
2
PRESSURE GAUGE CONNECTION
3
EXPANSION VESSEL CONNECTION
4 FILLING
TAP
5 PRESSURE
SWITCH
6 SAFETY
VALVE
7 BY-PASS
VALVE
8 DRAIN-OFF
TAP
9 FLOW
METER
10 THREE-WAY VALVE
11 EXCHANGER
