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Topvex TX03-06
Operation and Maintenance instructions
205875
Systemair AB
9
Show
the Analogue inputs.
AI1
: Show the actual temperature of the supply air.
AI2
: Show the actual temperature of the exhaust air.
AI3 applies only to HW units.
AI3
: Show the actual temperature of the return water in the hot water
battery (frost protection).
AI4:
Show the actual outdoor temperature
In-/Outputs
Set
the
Air control
mode to:
Supply.
Supply & Outdoor compensation.
Set
how much the control temp. should be compensated when the
out door temperature is –20°C and +15°C (the compensation will be
linear between these two points).
E.g. At –20 : 5°C.
E.g. At +15 : -2°C.
Control temp. = 18°C.
Outdoor temperature –20°C gives a Control temp. of 23°C (18+5).
Outdoor tempe15°C gives a Control temp. of 16°C (18-2).
Extract.
Set
the permitted maximum and minimum supply air temperature.
Set
the
Fan speed control
for the supply air fan
(SAF)
in % of
maximum fan speed. Choose between: 0% to 100%.
All fan speeds LOW, MEDIUM & HIGH can be set in this interval
Display shows
Description
Defrost function
Set
the
By-pass function
to
“Yes”
or
“No”
(preset is
“No”
)
Function:
(enables the use of the by-pass damper for
defrosting. The set supply air temperature is reduced 4K during
defrost cycle. Reduction of both supply air fan and extract air
fan speed up to 20% if supply air temperature does not reach
reduced set point. If necessary the supply air fan is stopped
completely during the defrosting cycle (stop defrosting)).
Set
the
Reduced supply air
to
“Yes”
or
“No”
(preset is
“No”
)
Function: Reduces the supply air fan speed up to 20%
whenever there is a frost risk of the plate heat exchanger.
Set
the defrost level between 1 and 5 (preset is 3)
Function: Level 1 to 5 are depending on the estimated indoor
relative humidity level. See table 1 on page 4 for a
description of the different levels.
Automatic summer/wintertime changeover
Choose between “Yes” and “No”, preset is “Yes”.
Set
the
Fan speed control
for the exhaust air fan
(EAF)
in % of
maximum fan speed. Choose between: 0% to 100%.
All fan speeds LOW, MEDIUM & HIGH can be set in this interval
