January 2013
Page 9 of 15
Multiple Installation
To Master/Slave two or more cassette heaters together the remote control is plugged into
the Master unit (this can be any of the units) and a RJ lead should be connected from the
Master to the Slave unit(s). RJ control cable extension leads are available from Biddle and
must be ordered separately. Additional cassette heaters, up to a maximum of eight units,
may be connected as indicated below. For Master/Slave configuration an independent
mains electrical supply as per Table 2 must be supplied to each cassette heater.
ECONTROL Controller Motherboard
Function
Control
Comments
Standard
Fan Heat Interlock
–
The heat output is governed by the
fan speed. If low or medium fan
speed is selected the heat output
will operate on only first heat stage.
Second stage heating will only
operate on high fan speed.
DIP1
Option
Maximum heat output achieved if
maximum fan speed selected.
Independently set-up DIP switch on
each mother board. This feature
operates in manual or auto mode.
As supplied, the
default setting
would be for
heat and fan
settings to be
independent
(DIP1 OFF).
Disable Fan Run-on
–
Disable fan run-on.
DIP2
Option
Must only be used for LPHW cassette
heaters. Independently set-up DIP
switch on each mother board.
As supplied, the
default setting
would disable
fan run-on
(DIP2 ON).
Thermostat Master
–
Only the air sensor thermistor in
the master cassette heater will be
used for measuring the reference
air temperature for the whole
master/slave installation.
DIP3
Option
The air sensor thermistors in all the
slave heaters will be ignored. This will
then avoid situations with master/slave
heaters where some units can blow
cold air whilst others can blow warm
air, because they currently all refer to
their own air sensor for control of the
heat output of each heater.
The master heater need not be the
one that the wall control is plugged
into. This dip switch setting must also
be used for Global Switching
(Master/Slave) via the INHIBIT
terminal
– see next page.
As supplied, the
default setting
would be for the
air sensor
thermistor on all
units to be
measuring
(DIP3 OFF).
Overheat Fan Disable
–
If DIP4 is on and thermal cut-out(s)
operate both heat and fan circuits
are isolated and L
ED’s on wall
switch flash. If DIP4 is off and
thermal cut-out(s) operate, only the
heating circuit is isolated and the
LED’s on the wall switch flash.
DIP4
Option
(Electric only)
Independently set-up DIP switch on
each mother board.
To remove fault, isolate electrical
supply to heater, reset TOC and
reconnect supply.
As supplied, the
default setting
would enable
fan if TOC trips
(DIP4 OFF).
Fan run-on time set two minutes.
Built-in
If “FAN ONLY” has been selected, at
switch off, no fan run-on.
-
white rectangle indicates the moveable head of each 4 way DIP switch
ON
OFF
1 2 3 4
ON
OFF
1 2 3 4
ON
OFF
1 2 3 4
ON
OFF
1 2 3 4
