Installation and operation manual
7
4PW17551-1B
ECFWER6
Microprocessor controller for fan coils
P
OSSIBLE
CONFIGURATIONS
In this chapter we describe all possible configurations
(C1
➞
C18) for controlling the unit.
Select the configuration that best complies to the system
characteristics. Possible functions are combined in
various configurations and are defined by setting the
microswitches on the electronic PCB accordingly. Refer
to "Installation on the support and on the fan coil" on
page 9 and to "Setting the microswitches" on page 10.
To find the relation of the system characteristics with the
correct wiring diagram and the correct setting of the
microswitches to be used in function of the desired
control, combine the table on page 8 with the table at the
very end of this manual.
This table lists the following items for all possible
configurations:
■
activated functions
■
system characteristics
■
position of the microswitches
■
corresponding controllers
■
relevant reference to dedicated wiring diagram
(
)
■
other conventions for complete understanding of the
table:
Room thermostat with air
temperature control
Room thermostat with ON-OFF
valve for 2-pipe systems
Room thermostat with ON-OFF
valve for 4-pipe systems
Manual built-in cooling/heating
switching mode
Manual remote cooling/heating
switching mode
Automatic cooling/heating switching
mode based on the water
temperature
Automatic cooling/heating switching
mode based on the air temperature
Choice of the range of the neutral
zone
Operational enabling signal based
on the water temperature
Time function (not available for
ECFWER6)
Electric heater control
M
MD
H
2
O
AIR
Number of pipes (2 or 4)
Valve (
✔
= present, — not present)
Electric heater
(
✔
= present, — not present)
with a number of units in parallel
(
+ obligatory
additional EPIMSA6
Master/Slave interface as explained
in paragraph "Master/Slave interface
and Power interface" on page 11)
1~
1 phase
3~
3 phase
1B_I+OM_4PW17551-1B.book Page 7 Wednesday, October 5, 2005 9:18 AM
