System Configuration - Thermoscreens T Series Operation And Maintenance

13. SYSTEM CONFIGURATION

13.1 Optional features
WARNING: Isolate and disconnect air curtain from the power source before making any changes.
DIP switches on the air curtain Ecopower PCB (see Fig 18) provide
the following optional features, as explained below:

Fan heat interlock

Disable fan run-on

Thermostat master (for master/slave installations)

Weather compensation heat control (Summer/Winter)

Door switch control
Feature
Fan heat interlock
Allows fan speed to govern heat
output on electric heated units.
If low or medium fan speed is
selected, a lower heat output
results. High heat operates only
on high fan speed.
Disable fan run-on
The 2 minute fan run-on after
switch off is enabled or disabled
on electric heated air curtains.
Thermostat master
For master/slave installations.
Only the air sensor in the
thermostat master air curtain is
used to measure air temperature.
Set DIP 3 to ON in the air curtain
that will be the master unit.
Weather compensation control
or Door switch control
Simple weather compensation
control to save heating energy.
or
Door switch control.
NOTE: Black rectangle is moveable head of DIP switch.
NOTE: A range of advanced factory fitted and plug-in control options are available from Thermoscreens to
enhance the performance of the Ecopower PCB controller inside the air curtain. These include
advanced weather compensation control using a heating curve, outlet air temperature control,
®
ECObus Modbus BMS control, modulating heater outputs and EEPROMs for non-standard control
strategies. Visit the Thermoscreens website for details.
T9901012-1-1 UK (v9)
DIP setting Default
DIP 1
ON
Heat output is
governed by fan
speed.
1 2 3 4
DIP 2
ON
Fan run-on at
medium speed
1 2 3 4 enabled.
DIP 3
ON
Air curtains in
master/slave
systems all act
1 2 3 4
independently.
DIP 4
IN1 Weather
ON
compensation.
1 2 3 4
IN1 Door switch.
Fig 18
ON This feature is only used with
electric heated air curtains to
limit very high air
temperatures.
Set DIP1 to OFF if unit is
water heated or ambient.
OFF Must only be used for water
heated or ambient air
curtains. Each air curtain
must have DIP2 set to ON for
no fan run-on.
OFF Air sensor thermistors in all
slave air curtains will be
ignored.
Stops some units blowing
cold air and others blowing
warm air in master/slave
systems on larger doorways.
OFF See section 11.1 Remote
Switch Contacts IN0 and IN1
for details
ON Weather compensation
control is the same as
Summer/Winter control
Notes
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