DeDietrich AWHP-2 MIT-IN-2 iSystem Installation And Service Manual page 58

4. Installation
Settings to be made on the inside module for this type of installation
Parameters Access
INSTALLATION Installer level
#SYSTEM menu
(1) Installer level
O.PUMP A
#SYSTEM menu
(1) Installer level
CIRC.A
#SYSTEM menu
PUMP MIT/MHR Installer level
#SYSTEM menu
Installer level
(1)
CIRC.B
#SYSTEM menu
CIRC.CURVE A Installer level
#SECONDARY INSTAL.P menu
CIRC.CURVE B Installer level
#SECONDARY INSTAL.P menu
Installer level
HP BUS
#PRIMARY INSTAL.P menu
Installer level
BACKUP TYPE
#PRIMARY INSTAL.P menu
(1) The parameter is only displayed if INSTALLATION parameter is set to EXTENDED
56
Connect the BUS cable between the outside module and
O
the terminal block on the inside module.
Connect the outlet AD 199 sensor (Circuit B).
P
Connect the heating pump and the K relays to the AL1
a
connector on the PCU PCB.
Connect the boiler's inlet CS to the AL2 connector on the
z
PCU PCB.
Inside module with electrical back-up
e
Outdoor unit
r
Settings to be made See chapter
¼ "Displaying the parameters in extended
EXTENDED
mode", page 84
¼ "Setting the parameters specific to the
CH.PUMP A
installation", page 86
¼ "Setting the parameters specific to the
DIRECT
installation", page 86
¼ "Setting the parameters specific to the
CIRC.A
installation", page 86
¼ "Setting the parameters specific to the
3WV
installation", page 86
¼ "Professional settings", page 98
1.5
¼ "Professional settings", page 98
0.7
¼ "Professional settings", page 98
TOR
¼ "Professional settings", page 98
/H
Setting the back-up boiler
4 Switch the boiler control system to 24h/24 comfort mode.
4 Heating temperature setting = HEAP MAX:.
Operating principle
4 In DHW production:
The relay K closes the contact CS to enable the burner to start up.
4 In auxiliary heater mode:
The MIT-2 module controls input CS on the boiler and the back-
up pump.
When back-up is requested, the boiler continues to handle DHW
priority.
After the back-up is shut down, the back-up pump continues to run
during the timed period BACKUP PUMP DEL. which can be
adjusted in the #HEAT PUMP menu.
AWHP-2 MIT-IN-2 iSystem
25/06/2014 - 7616371-001-04