60T - 280T
13 - INSTALLATION - Electrical connections
Figure 13-
6
Boiler appliances in cascade connection conceptual diagram
COSMOGAS
4
3
13.4 - Connecting cascade appliances
Connecting cascade appliances is done as shown in the
diagrams in figure 13-
6
(boiler)
.
Preemptively, an 885 IF
board (part “13” in figure 3-3, 3-5
and 3-7) must be
installed in each appliance and an 885
HC cascade
control (see figure 13-7) must be
purchased.
At most 8 appliances can be connected in cascade (figure
13-
6
show examples with 4).
Follow the 885 HC control manual for instructions on
connecting the appliances in cascade.
885 HC
Cascade sequence
controller
MASTER
appliance
#1
SLAVE
appliance
#2
SLAVE
appliance
#3
SLAVE
appliance
#4 up to #8
Heating
module
pump
Heating
heating circuit
Hydraulic separator
Cascade
general
sensor
Check
valve
Check
valve
Check
valve
Check
valve
Heating
module
pump
Heating
module
pump
Heating
module
pump